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Файл:Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_1232_Библиотеки_им_академика_М_И_Перельмана.pdf
X
- •Acknowledgments
- •Introduction
- •Contents
- •Contributors
- •Diagnostic Tests
- •Treatment
- •Surgical Procedure
- •Subareolar Duct Excision
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •2: Abnormal Mammogram
- •Concept
- •Full History
- •Full Physical Examination
- •Diagnostic Tests
- •Surgical Procedure
- •Excisional Biopsy
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •1: Nipple Discharge
- •Concept
- •Oral Board Scenario
- •Full History
- •Full Physical Examination
- •3: Breast Mass
- •History
- •Physical Examination
- •Imaging
- •Diagnosis
- •Breast Cyst
- •Fibroadenoma
- •Phyllodes Tumor
- •Breast Cancer
- •Clinical Staging
- •Surgical Management
- •Clean Kills
- •Bonus Points
- •Breast Imaging
- •Breast Biopsy
- •Clean Kills
- •Bonus Points
- •Bibliography
- •5: High Risk Lesions
- •Concept
- •Atypical Ductal Hyperplasia (ADH)
- •Atypical Lobular Hyperplasia (ALH)
- •Clean Kills
- •6: Inflammatory Breast Cancer
- •Bonus Points
- •Bibliography
- •Concept
- •History
- •Physical Exam
- •Diagnostic Tests
- •Staging
- •Treatment
- •Surgery
- •Sentinel Lymph Node Surgery
- •Chemotherapy/Trastuzumab/Hormonal Therapy
- •Radiotherapy
- •Other Considerations
- •Clean Kills
- •Bonus Points
- •Bibliography
- •8: Invasive Lobular Breast Cancer
- •Risks
- •Diagnosis
- •Treatment
- •Pleomorphic Lobular Carcinoma
- •9: Hereditary Breast Cancer (BRCA1/2)
- •Clean Kills
- •Bonus Points
- •Bibliography
- •10: Locally Advanced Breast Cancer
- •Concept
- •Oral Board Scenario
- •History
- •Physical
- •Diagnostic Imaging
- •Labs
- •Tissue Diagnosis
- •Multidisciplinary Conference/Tumor Board
- •Treatment
- •Surgical Procedure
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •11: Metastatic Breast Cancer
- •Metastatic Breast Cancer
- •Concept
- •History
- •Physical Examination
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •History
- •Physical
- •Work-Up
- •Treatment
- •Bibliography
- •13: Mesenteric Ischemia
- •Full History
- •Medical Comorbidities
- •Full Physical Examination
- •Diagnostic Tests
- •Management
- •Acute SMA Embolism
- •Acute SMA Thrombosis
- •Non-occlusive Mesenteric Ischemia
- •Common Curveballs
- •Clean Kills
- •Summary
- •14: Hemorrhoids
- •Hemorrhoids
- •Operative Management
- •Special Scenarios
- •Clean Kills
- •Bonus Points
- •Bibliography
- •Diagnostic Testing
- •Additional Testing
- •15: Colonic Volvulus
- •Colonic Volvulus
- •Clean Kills
- •Bonus Points
- •Bibliography
- •16: Rectal Prolapse
- •Perineal Rectosigmoidectomy (Altemeier Procedure)
- •Transabdominal Rectopexy
- •Clean Kills
- •Bonus Points
- •Bibliography
- •17: Appendiceal Cancer
- •Epithelial Lesions
- •Mixed Lesions
- •Non-epithelial Lesions
- •Appendiceal Carcinoid Tumors
- •Clean Kills
- •Bonus Points
- •Bibliography
- •18: Small Bowel Obstruction
- •Surgical Treatment
- •Common Curveballs
- •Malignancy
- •Clean Kills
- •Summary
- •Bibliography
- •19: Mesenteric Volvulus
- •Concept
- •Surgical Management
- •Common Curveballs
- •Clean Kills
- •Summary
- •20: Meckel’s Diverticulum
- •Meckel’s Diverticulum
- •Clean Kills
- •Bibliography
- •21: Colon Cancer
- •Colon Cancer
- •Lynch Syndrome/HNPCC
- •Familial Adenomatous Polyposis (FAP) Syndrome
- •Malignant Bowel Obstruction
- •Perforated Lesions
- •Adjuvant Treatment
- •Clean Kills
- •Bonus Points
- •Bibliography
- •22: Enterocutaneous Fistulas
- •Introduction
- •Initial Management
- •Skin Care
- •Nutrition
- •Infection/Sepsis Control
- •Operative Timing
- •Operative Technique
- •Outcomes
- •Conclusions
- •Bibliography
- •23: Diverticulitis
- •Concept
- •Surgical Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •24: Adult Appendicitis
- •Concept
- •Surgical Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •25: Large Bowel Obstruction
- •Concept
- •Initial Management
- •Surgical Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •26: Intussusception
- •Concept
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •27: Lower Gastrointestinal Hemorrhage
- •Lower Gastrointestinal Hemorrhage
- •Evaluation
- •Surgery
- •Clean Kills
- •Bonus Points
- •Bibliography
- •28: Peri-Rectal Abscess
- •Perianal Abscess
- •Ischioanal Abscess
- •Intersphincteric Abscess
- •Supralevator Abscess
- •Horseshoe Abscess
- •Clean Kills
- •Bonus Points
- •Bibliography
- •29: Rectal Cancer
- •Total Neoadjuvant Therapy (TNT)
- •Bonus Points
- •Bibliography
- •30: Right Lower Quadrant Pain
- •Acute Appendicitis
- •Treatment
- •Key Technical Steps
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •31: Crohn’s Disease
- •Concept
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •32: Ulcerative Colitis
- •Concept
- •Common Curveballs
- •Clean Kills
- •Summary
- •Medically Refractory Ulcerative Colitis/Fulminant Colitis
- •Concept
- •Surgical Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •33: Zenker’s Diverticulum
- •Concept
- •Treatment Options
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •34: Achalasia
- •Achalasia
- •Surgical Treatment
- •Common Curveballs
- •Bonus Points
- •Clean Kills
- •Bibliography
- •35: Barrett’s Esophagus
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •36: Esophageal Cancer
- •Surgical Treatment
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •37: Esophageal Perforation
- •Surgical Treatment
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •38: Esophageal Varices
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •39: Adult Gastroesophageal Reflux Disease
- •Surgical Treatment
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •40: Duodenal Cancer
- •Concept
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •41: Gastric Outlet Obstruction
- •Surgical Treatment
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •42: Duodenal Stump Complications
- •Surgical Treatment
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •43: Cholecystoduodenal Fistula
- •Surgical Treatment
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •44: Abdominal Aortic Aneurysms
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •45: Duodenal Ulcers
- •Surgical Treatment
- •Clean Kills
- •Bibliography
- •46: Gastric Cancer
- •History
- •Physical Examination
- •Diagnostic Tests
- •Staging
- •Treatment
- •Post-operative Complications
- •Clean Kills
- •Summary
- •Bibliography
- •Concept
- •Indications
- •Contraindications
- •Calculating Nutritional Needs
- •Timing
- •Enteral Nutrition
- •Nonsurgical Enteral Access
- •Surgical Enteral Access
- •Total Parenteral Nutrition (TPN)
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •Etiology
- •Exam
- •Work Up
- •Medical Management
- •Surgical/Procedural Management
- •Follow-Up
- •Clean Kills
- •Bibliography
- •49: Dieulafoy Lesions
- •Overview
- •Clean Kills
- •Bibliography
- •50: Gallstone Ileus
- •Surgical Procedure
- •Common Curveballs
- •Clean Kills
- •51: Choledochal Cyst
- •Concept
- •Surgical Management
- •Common Curveballs
- •Clean Kills
- •52: Choledocholithiasis
- •Surgical Management
- •Common Curveballs
- •Clean Kills
- •53: Bile Leak
- •Concept
- •Surgical Procedure
- •Common Curveballs
- •Clean Kills
- •54: Bile Duct Injury
- •Concept
- •Surgical Procedure
- •Common Curveballs
- •Clean Kills
- •55: Liver Abscess
- •Concept
- •Common Curveballs
- •Clean Kills
- •56: Acute Cholecystitis
- •Common Curveballs
- •Clean Kills
- •57: Cirrhosis
- •Surgical Procedure
- •Common Curveballs
- •Clean Kills
- •58: Gallbladder Cancer
- •Concept
- •Surgical Management
- •Common Curveballs
- •Clean Kills
- •59: Postcholecystectomy Syndrome
- •Concept
- •Treatment Options
- •Clean Kills
- •Bibliography
- •60: Mirizzi Syndrome
- •Clean Kills
- •Bibliography
- •61: Acute Pancreatitis
- •Clean Kills
- •Bonus Points
- •Bibliography
- •62: Chronic Pancreatitis
- •Surgical Procedure
- •Common Curveballs
- •Clean Kills
- •63: Pancreatic Cancer
- •Surgical Management
- •Common Curveballs
- •Surgical complications
- •Clean Kills
- •64: Pancreatic Pseudocysts
- •Clean Kills
- •Bonus Points
- •Bibliography
- •65: Carcinoid Tumors
- •Introduction
- •Bonus Points
- •Clean Kills
- •Bibliography
- •Further Reading
- •66: Cushing’s Syndrome
- •Concept
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •67: Pheochromocytoma
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bonus Points
- •Bibliography
- •68: Gastrinoma
- •Management
- •Postoperative Considerations
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •69: Primary Hyperaldosteronism
- •Concept
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •70: Insulinoma
- •Concept
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Summary
- •Bibliography
- •71: Hyperthyroidism
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •72: Neck Mass
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •73: Hyperparathyroidism
- •Procedure
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •74: Thyroid Nodule
- •Surgical Treatment
- •Postoperative Cancer Treatment
- •Surveillance
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •75: Renal Artery Stenosis
- •Surgical Treatment
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •76: Kidney Stones
- •Concept
- •Alternate Scenario
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •77: Testicular Mass
- •Concept
- •Alternate Scenario
- •Surgical Treatment
- •Clean Kills
- •Bonus Points
- •Bibliography
- •78: Groin Hernias
- •Inguinal Hernia
- •Concept
- •Surgical Treatment
- •Common Curveballs
- •Clean Kills
- •Femoral Hernia
- •Concept
- •Surgical Treatment
- •Common Curveballs
- •Clean Kills
- •Obturator Hernia
- •Bibliography
- •79: Incarcerated Inguinal Hernia
- •Concept
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •80: Ventral Hernia
- •Concept
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Summary
- •Bibliography
- •Curveballs
- •Complications
- •Clean Kills
- •Summary
- •Bibliography
- •82: Complex Abdominal Wall Reconstruction
- •Concept
- •Common Curveballs
- •Clean Kills
- •Summary
- •83: Abdominal Compartment Syndrome (ACS)
- •Concept
- •An Alternate Presenting Scenario
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •Further Reading
- •84: Colon Trauma
- •Clean Kills
- •Bonus Points
- •Bibliography
- •Further Reading
- •85: Rectal Trauma
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •86: Extremity Compartment Syndrome
- •Surgical Management
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •87: Duodenal Trauma
- •Duodenal Injury Grading
- •Clean Kills
- •Bonus Points
- •Further Reading
- •88: Genitourinary Trauma
- •Urethral Injury Grading
- •How to Answer?
- •Clean Kills
- •Bonus Points
- •Bibliography
- •89: Liver Trauma
- •Management Options
- •Surgical Management
- •Operative Hemostatic Techniques
- •Post-operative Management
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •90: Pelvic Fractures
- •Common Curve Balls
- •Clean Kills
- •Bibliography
- •91: Rib Fractures
- •Work Up
- •Non-Surgical Treatment
- •Surgical Treatment
- •Geriatric Population Considerations
- •92: Penetrating Neck Trauma
- •Concept
- •Diagnostic Tests
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •93: Venous Thromboembolism
- •Clean Kills
- •Bonus Points
- •Further Reading
- •94: Splenic Trauma
- •Concept
- •History (AMPLE)
- •Physical Examination
- •Labs/Tests
- •Resuscitation
- •Mechanism Considerations
- •Operative Management
- •Non-operative Management
- •Vaccinations
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •95: Nutrition
- •Chronic Malnutrition, Outpatient
- •Chronic Malnutrition, Inpatient
- •Refeeding Syndrome
- •Bonus Points
- •Bibliography
- •96: Thoracic Trauma
- •Management
- •Curve Balls
- •Clean Kills
- •Summary
- •Bonus Points
- •Bibliography
- •Concept
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •98: Damage Control Surgery
- •Concept
- •Initial Evaluation
- •Early Decision-Making
- •Damage Control Surgery
- •Initial Phase
- •Resuscitative Phase
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Summary
- •Bibliography
- •99: Burns
- •Concept
- •Curveballs
- •Clean Kills
- •Bibliography
- •100: Burn Escharotomy
- •Burn Escharotomy
- •Concept
- •Common Curve Balls
- •Clean Kills
- •Concept
- •Common Curveballs
- •Clean Kills
- •Concept
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •101: Burn Sepsis
- •Concept
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •102: Cardiac Trauma
- •Penetrating Cardiac Injury
- •Concept
- •Initial Evaluation
- •Treatment
- •Blunt Cardiac Injury
- •Concept
- •Initial Evaluation
- •Additional Workup
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Summary
- •Bibliography
- •103: Multiple Injuries/Trauma Priorities
- •Concept
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •104: Intracranial Hemorrhage (Traumatic Brain Injury)
- •Concept
- •Calculate GCS
- •Physical Exam
- •Diagnostic Tests
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •105: Diaphragmatic Injuries
- •Concept
- •History
- •Physical Examination
- •Diagnostic Tests
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •106: Emergency Airway
- •Concept
- •Blunt Trauma
- •Common Curveballs
- •Clean Kills
- •Penetrating Trauma
- •Cricothyroidotomy
- •Common Curveballs
- •Clean Kills
- •Angioedema
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •Concept
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bonus Information
- •Basic Ventilator Modes
- •Bibliography
- •108: Extracorporeal Membrane Oxygenation
- •Concept
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •109: Empyema
- •Treatment
- •Surgical Management
- •Chronic Empyema
- •Post-resectional Empyema
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •110: Lung Nodule/Lung Cancer
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •111: Bleeding After Gastric Bypass
- •Treatment
- •Surgical Management
- •Bonus Points
- •Clean Kills
- •Bibliography
- •Erosion
- •Slippage/Prolapse
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •113: Bariatric Surgery Complications
- •Concept
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •114: Reflux After Sleeve Gastrectomy
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •115: Abdominal Aortic Aneurysms
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •116: Vascular: Chronic Lower Extremity Ischemia
- •Management
- •Surgical Management
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •117: Acute Extremity Ischemia
- •Management
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •118: Carotid Stenosis
- •Surgical Management
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •119: Visceral Artery Aneurysms
- •Surgical Management
- •Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •120: Deep Vein Thrombosis
- •Clinical Scenario 1
- •Bonus Points
- •Bibliography
- •GERD
- •Clean Kills
- •Bonus Points
- •Bibliography
- •122: Hypertrophic Pyloric Stenosis
- •Pyloric Stenosis
- •Clean Kills
- •Bonus Points
- •Bibliography
- •123: Pediatric Inguinal Hernia
- •Inguinal Hernia
- •Incarcerated Inguinal Hernia
- •Clean Kills
- •Bonus Points
- •Bibliography
- •124: Pediatric Appendicitis
- •Acute Appendicitis
- •Perforated Appendicitis
- •Perforated Appendicitis, Interval Appendectomy
- •Clean Kills
- •Bonus Points
- •Bibliography
- •125: Tracheoesophageal Fistula
- •Concept
- •Tracheoesophageal Fistula
- •Clean Kills
- •Bonus Points
- •Bibliography
- •126: Postoperative Hypotension
- •Postoperative Hypotension
- •Bonus Points
- •Bibliography
- •127: Postoperative Fever
- •Bonus Points
- •Clean Kills
- •Bibliography
- •128: Postoperative Myocardial Infarction
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •129: Air Embolism
- •Clean Kills
- •Bonus Points
- •Bibliography
- •130: Perioperative Care: Recent Myocardial Infarction
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •131: Acute Kidney Injury
- •Bonus Points
- •Clean Kills
- •Bibliography
- •132: Intraoperative Complications: Hemorrhage
- •Surgical Management
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •133: Trocar Injury
- •Bonus Points
- •Clean Kills
- •Bibliography
- •Surgical Management
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •135: Melanoma (Thin)
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •136: Melanoma (Thick)
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •137: Sarcoma
- •Introduction
- •Bonus Points
- •Clean Kills
- •Bibliography
- •138: Skin Cancer (Squamous Cell Cancer)
- •Brief H+P
- •Treatment
- •Follow-Up
- •Bonus
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •139: Basal Cell Carcinoma
- •Introduction
- •Clean Kills
- •Bonus Points
- •Bibliography
- •140: Necrotizing Soft Tissue Infections
- •Concept
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bibliography
- •141: Wound Dehiscence
- •Concept
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Concept
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Enterocutaneous Fistula
- •Concept
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Summary
- •Bonus Points
- •Bibliography
- •142: Surgical Site Infections
- •Concept
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Bibliography
- •Bibliography
- •144: Futile Care
- •Concept
- •Treatment
- •Common Curveballs
- •Clean Kills
- •Bonus Points
- •Bibliography
- •145: Conclusion
- •Index

131 Acute Kidney Injury
453
• Postrenal: obstruction. In surgical patients, this is often
related to a kinked or clogged Foley catheter but may also
be a result of an enlarged prostate, obstructing renal stone,
or injury to the ureter.
Management ofAKI
The optimal management strategy for AKI is the identication of at-risk patients and preventively managing their care
to minimize the risk of developing AKI.The goal is to maintain euvolemia and normotension and avoid nephrotoxic
drugs throughout their clinical course. Resuscitation with
balanced crystalloid solutions, which are more similar to
human plasma with respect to electrolytes, pH, and buffer
capacity, is preferred. Once AKI has developed, there is no
specic treatment to regain kidney function. The goal is to
maintain adequate renal perfusion and to avoid further kidney injury, allowing the return of renal function. Supportive
care, optimizing volume status, and time will dictate the
clinical course. Conversion of oliguric to non-oliguric renal
failure with use of diuretics will not alter the course but may
help manage volume status and avoid the need for renal
replacement therapy (RRT).
RRT is indicated for the management of profound acido-
sis, electrolyte derangements such as refractory hyperkalemia, ingestion of certain intoxicants, volume overload, and
severe uremia. Initiation of RRT is a marker of signicant
morbidity in the postsurgical patient; however, if indicated, it
should certainly be utilized. Early versus late initiation of
RRT remains a source of debate as to its effect on ultimate
outcomes. The mode of RRT employed should be tailored to
the indication for dialysis therapy and the patient’s overall
physiology including ability to tolerate volume removal.
Additionally, while urine output is a great marker of resuscitation, osmotic diuresis such as in hyperglycemia may be
misleading, and despite high urine output, a patient may still
develop an AKI. Non-oliguria or post-obstructive diuresis
may still present with acute kidney injury.
Clean Kills
• Failure to recognize and return to the operating room for
a patient whose AKI is caused by a surgical complication
(e.g., postoperative bleeding or anastomotic leak)
• Failure to identify the need for renal replacement therapy,
such as refractory hyperkalemia, volume overload, or
severe uremia
Words ofWisdom
As with any postoperative complication, always think about
the index operation and what operative factors could be causing the complication being observed. Develop a thoughtful
approach to the problem with a focused differential diagnosis. Avoid an absolute shotgun approach for every possible
cause of AKI, but truly think about the question stem and real
patient and operative factors that could be causing the AKI,
and then adjust your therapies to match. Lastly, your nephrology colleagues will be available to run the dialysis machine
should it be necessary (you do not need to know how to write
dialysis orders), but the initial workup of a patient with oliguria and/or AKI and determination of whether dialysis is
acutely indicated should be fair game.
Bibliography
Bonus Points
Remember that creatinine can uctuate with age, muscle
mass, and diet. It is important to know the patient’s baseline
as even a normal number may be abnormal for the patient.
SCORE. https://surgicalcore.org.
Townsend CM.Sabiston textbook of surgery: the biological basis of
modern surgical practice. 21st ed. Elsevier; 2021.

Intraoperative Complications: Hemorrhage
WissamNasser andAlecBeekley
132
Way Question May BeAsked?
A 67-year-old male with a history of degenerative disc disease was undergoing anterior lumbar decompression/fusion
of the L4–S1 vertebrae requiring anterior exposure by general surgery. The patient did not have a history of abdominal
surgery; therefore a Pfannenstiel incision was used. An
extraperitoneal approach was utilized by a general surgeon
for exposure of the spine. During the dissection, a sudden
rush of high volume dark bleeding was encountered.
How toAnswer?
Surgical Management
• Identifying the source of the bleed and applying direct
pressure if possible
• Communication:
– Promptly alert anesthesia of the injury and maintain
consistent two lines of communication throughout.
– Call for assistance from another surgeon (intraopera-
tive vascular surgery consult).
– Circulating nurses maintain a clear and concise record
of blood products used and communicate with the
blood bank for any supplies needed.
• Extending the laparotomy incision for better control of
the injury and access for repair
• Resuscitation:
– Labs (including coagulation parameters), type and
screen
– Initiating massive transfusion protocol (MTP)
Transfuse blood products with goals of (hemoglobin <7, platelet count <50K, INR <1.5)
W. Nasser · A. Beekley (*)
Department of Surgery, Thomas Jefferson University Hospital,
Philadelphia, PA, USA
e-mail: Wissam.Nasser@jefferson.edu; Alec.Beekley@jefferson.edu
• Admission to higher level of care such as the ICU for
close hemodynamic monitoring
Common Curveballs
• Massive hemorrhage can result in coagulopathy and
shock (Graling etal. 2014).
• Massive transfusion and uid resuscitation due to perioperative bleeding can lead to acquired coagulation abnormalities such as hemodilution, hemostatic factor
consumption, coagulopathy, hypothermia (especially if
uids are not warmed), and electrolyte imbalances
(Ghadimi etal. 2016).
• Recognizing the development of coagulopathy and hypothermia and converting to a damage control procedure.
Clean Kills
• Not establishing communication and updating anesthesia
and OR staff
• Not calling for help despite unsuccessful control of
bleeding
• Not converting to a laparotomy during a laparoscopic procedure if bleeding is not controlled
• Not initiating massive transfusion protocol
Bonus Points
• Denition of massive hemorrhage (Irita 2011):
– Blood loss exceeding circulating blood volume within
a 24-h period
– Blood loss of 50% of circulating blood volume within
a 3-h period
– Blood loss exceeding 150 ml/min
– Blood loss that necessitates plasma and platelet
transfusion
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025
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456
W. Nasser and A. Beekley
• When blood type is unclear, or type and screen has not
resulted, O-type RBCs should be used when able (Irita
2011).
Words ofWisdom
• Unexpected intraoperative hemorrhage, particularly during elective surgery, can be mentally and emotionally taxing for surgeons to deal with. Help should always be
requested. Establishing a “safety net” around the patient
by clear communication with anesthesia team, operating
room staff, establishment of resuscitation lines, notication of the transfusions services, and early calls for intra-
operative assistance can make the difference in obtaining
successful rescue of the patient.
Bibliography
Graling P, Dort J, Moynihan J. Crisis management of a hemorrhagic
emergency in the OR. AORN J. 2014;99(4):510–6. https://doi.
org/10.1016/j.aorn.2014.02.008.
Ghadimi K, Levy JH, Welsby IJ. Perioperative management of the
bleeding patient. Br J Anaesth. 2016;117(Suppl. 3):iii18–30. https://
doi.org/10.1093/bja/aew358.
Irita K. Risk and crisis management in intraoperative hemorrhage:
human factors in hemorrhagic critical events. Korean J Anesthesiol.
2011;60(3):151–60. https://doi.org/10.4097/kjae.2011.60.3.151.

Trocar Injury
SageA.Vincent
133
Way Question May BeAsked?
Scenario 1
A 55-year-old male who is healthy, with no past medical history, presents for evaluation of bilateral groin discomfort
and bulges. He is found to have bilateral inguinal hernias.
He desires robotic bilateral inguinal hernia repair. You counsel the patient about the risks of surgery, including damage
to internal structures during trocar placement. What are the
different options for abdominal entry for laparoscopic
surgery?
How toAnswer?
• Open, cutdown with Hasson port entry under direct
visualization
– Ideal for patients with prior surgery
– Often allows immediate identication and repair if a
visceral injury is made
• Veress needle insertion to establish pneumoperitoneum
– Inserted perpendicular to the skin, can conrm intra-
peritoneal location using a saline drop test
• Direct trocar insertion or blind insertion without
pneumoperitoneum
– Minimizes number of blind steps with Veress tech-
nique (i.e., needle placement, insufation, trocar
placement) to just one—trocar placement
The above patient presents on the day of surgery. You elect
to enter the abdomen using direct trocar insertion without
pneumoperitoneum, just superior to the umbilicus. Once the
port is in place, you introduce the camera and notice food
products emanating from a small enterotomy. How should
you proceed?
How toAnswer?
• Perform an inspection of the abdominal cavity to ensure
no additional injuries and then repair the injury. This can
be done laparoscopically or open depending on surgeon
preference and visualization.
• If there is concern for contamination of the peritoneal
cavity, do not place synthetic mesh.
Scenario 2
The same 55-year-old male presents for his elective bilateral
inguinal hernia repair. You perform blind trocar placement
for abdominal entry. The abdomen shows no evidence of
injury on camera introduction. You perform your bilateral
inguinal hernia without issue and he is discharged home
from the PACU.On postoperative day 2, he returns to the
emergency room with abdominal pain and fever to
101.8°F.He has a leukocytosis and computed tomography of
the abdomen and pelvis with IV contrast shows free uid in
the pelvis and moderate pneumoperitoneum. On exam, he is
peritonitic, demonstrating rebound tenderness and guarding. How should you proceed?
How toAnswer?
• Given concern for a missed injury during the initial hernia
repair, operative exploration is warranted. This can be
done laparoscopically or robotically, but surgeons should
not hesitate to perform formal laparotomy if necessary.
– Note: About 30–50% of all visceral injuries related to
trocar injury will not be identied at the time of surgery (Krishnakumar and Tambe 2009). Index of suspicion should be high in any patient returning to the ED.
How could you have avoided this small bowel injury?
S. A. Vincent (*)
Department of Surgery, Thomas Jefferson University Hospital,
Philadelphia, PA, USA
e-mail: Sage.vincent@jefferson.edu
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025
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457

458
S. A. Vincent
How toAnswer?
• There is no consensus regarding the best modality of
abdominal entry for laparoscopy; however many feel
that direct visualization with a cutdown and Hasson
entry is safest. If utilizing Veress needle entry, it is
important to monitor the initial abdominal pressures on
insufation. Pressures > 10 mmHg indicate
malposition.
Scenario 3
A 68-year-old female with a history of COPD and BMI of
18 presents to the ED with right lower quadrant pain and is
found to have acute appendicitis. She is taken to the OR for
a laparoscopic appendectomy. Hasson port placement is
performed at the umbilicus. An additional port is placed
suprapubic and a third in the left lower quadrant. The case
is completed without incident. At the completion of the
case, the left lower quadrant port is removed and there is
immediate pulsatile bleeding from the anterior abdominal
wall. What vessel has been injured and how will you deal
with it?
How toAnswer?
• This is most likely an injury to the inferior epigastric vessels. The injury occurred during trocar placement but was
under tamponade by the port, with bleeding noticeable
after its removal at the completion of the case.
• Abdominal wall port site bleeding can be stopped with
direct pressure or electrocauterization (externally or with
energy devices introduced internally through another
port), for passage of transabdominal suture with a suture
passing device. Hemostatic agents can also be applied if
necessary. Postoperatively, it is important to monitor
these hematomas to ensure they do not continue to
expand.
• Key Point: Use transillumination on the anterior abdomi-
nal wall to visualize the epigastric vessels to ensure a trocar is not placed through one. Always remove ports under
direct visualization.
Scenario 4
The above patient is in the operating room and is positioned
supine with left arm tucked to undergo laparoscopic appendectomy. Direct trocar placement without pneumoperitoneum is performed at the umbilicus. The abdomen is
insufated and the camera is introduced. The visualization is
poor with a large volume of blood in the abdomen. The anesthesia team tells you that she is becoming tachycardic and
hypotensive. How should you proceed?
How toAnswer?
• If the site of bleeding is obvious, hold pressure.
• Communicate clearly and effectively with everyone in the
room, letting them know that you are concerned about a
major vascular injury. Massive transfusion protocols can
be activated by anesthesia. Open surgical equipment
should be available to perform a laparotomy. Identify the
source of bleeding and obtain proximal and distal control.
Call vascular surgery colleagues if available.
– Hint: Follow penetrating trauma protocols with regard
to operative exploration and management including
damage control surgery.
Scenario 5
A 62-year-old male with a previous history of a gunshot
wound requiring an exploratory laparotomy and splenectomy in the distant past presents with a small bowel obstruction. Despite several days of conservative management, he
has not had return of bowel function and he is taken to the
operating room for a diagnostic laparoscopy. Given his previous splenectomy, the decision is made to place a Veress
needle in the right upper quadrant to avoid adhesions. The
Veress is placed and insufation is started. Your anesthesia
colleagues report there is an immediate drop in the end-tidal
CO2 with associated hemodynamic instability. What has happened and how will you proceed?
How toAnswer?
• This patient has a CO2 air embolism, likely due to Veress
placement in the liver, which introduced the CO2 insufation into the circulation.
• The insufation should be disconnected. FiO2 should be
increased to 100%. Laparoscopic instruments should be
removed. The patient should be positioned Trendelenburg
in the left lateral decubitus position, which will allow the
air bubble to rise to the apex of the right atrium and ventricle. If a central line is in place, aspiration of the CO
bubble can be attempted. Resuscitation with uids should
be initiated with supplemental vasopressors as needed to
maintain adequate blood pressure (please see chapter on
Air Embolism for more details).
air
2
Bonus Points
• Palmer’s point, located 3 cm below the costal margin in
the midclavicular line, is generally felt to be a safe site of
abdominal entry, particularly for Veress needle
placement.

133 Trocar Injury
459
Clean Kills
• Failure to convert to laparotomy in the setting of hemodynamic instability from bleeding related to trocar injury or
inability to identify the site of bowel injury
Words ofWisdom
Minimally invasive surgery continues to become a cornerstone of surgical management of many pathologies. There
have been many improvements made in minimally invasive
surgery since its primitive introduction in the early 1900s
(Schlogel 1996) including high-denition visualization,
defogging technology, and wristed instrumentation with
robotics. As the culture of surgical practice shifts toward
minimally invasive technologies, it is important to be aware
of the specic risks these procedures carry, as well as steps to
mitigate those risks.
One of the feared risks of minimally invasive surgery is
trocar injury. Trocar injury occurs on entry to the abdomen,
typically with the rst trocar placement. These represent a
class of injuries with signicant associated morbidity and
mortality. Retrospective studies report an estimated incidence of trocar injury to be around 0.1–1% of all laparoscopic cases (Scafer etal. 2001; Orlando etal. 2003; Maskal
etal. 2023). Bowel injury, accounting for 70% of all trocar
injuries (Maskal etal. 2023), is associated with high morbidity, particularly when its identication is delayed. Vascular
trocar injuries, though less frequent, are extremely detrimental, with a mortality rate approaching 15% (Krishnakumar
and Tambe 2009). Due to the close proximity of the abdominal wall to the retroperitoneal vasculature, these injuries are
more frequently seen in petite patients or patients with lower
body mass index. No matter how experienced you are, these
happen. There is no perfect method of entry, and the best
technique is whatever is best in your hands. Be very careful
in thin patients, patients with enlarged organs, prior surgery,
and post-bariatric surgery patients.
Bibliography
Krishnakumar S, Tambe P.Entry complications in laparoscopic surgery.
J Gynecol Endosc Surg. 2009;1(1):4–11.
Maskal S, Ellis R, Prabhu A, Miller B, Beffa L, Krpata D, Rosen
M, Petro C. Injuries incurred from minimally invasive access for
abdominal surgery. Surg Endosc. 2023;37(7):5368–73.
Orlando R, Palantini P, Lirussi F.Needle and trocar injuries in diag-
nostic laparoscopy under local anesthesia: what is the true incidence of these complications? J Laparoendosc Adv Surg Tech A.
2003;13(3):181–4.
Scafer M, Lauper M, Krahenbul L.Trocar and Veress needle injuries
during laparoscopy. Surg Endosc. 2001;15:275–80.
Schlogel G.Raoul Palmer and the coelio-surgical adventure from 1940
to 1995. Hist Sci Med. 1996;30(2):281–7.

Surgery inthePregnant Patient
EmilyIsch
134
Way Question May BeAsked?
You are called to see a 25-year-old pregnant female in the
emergency department with right lower quadrant abdominal
pain. Walk me through your diagnostic workup and
evaluation.
How toAnswer
• Start with a complete history and physical examination,
with particular consideration of the following:
• History
– Duration, severity, associated symptoms.
– Date of last menses.
– Sexual history (sexually active?), any use of birth con-
trol currently.
– Vaginal bleeding.
– In the third trimester, the initial history should include
an assessment for a history of hypertension, fetal
movement, visual changes, headache, leakage of uid
from the vagina, and whether the pain waxes and
wanes (this may represent contractions).
• Physical exam
– “Toxic” appearance, shock, acidosis, leukocytosis
– Presence of peritonitis
– Tachycardia/hypotension
– Hypertension (concern for preeclampsia)
• Diagnostic tests
– Complete blood count.
– Abdominal ultrasound.
– Urine HCG.
– Fetal ultrasound to determine viability if any concern.
E. Isch (*)
Department of Surgery, Thomas Jefferson University Hospital,
Philadelphia, PA, USA
e-mail: Emily.isch@jefferson.edu
– If concerned for preeclampsia, perform fetal monitor-
ing, a complete blood count, a comprehensive metabolic panel, and a urine protein-creatinine ratio.
• In this situation, if the patient is found to have acute
appendicitis, one should be taken to the operating room
for denitive surgical management.
Surgical Management
• Important considerations in the pregnant patient:
– Preoperative preparation: Consider obstetric causes of
abdominal pain: placental abruption, preeclampsia,
and preterm labor.
– Location of appendix will be affected/displaced by
enlarged uterus depending on trimester of pregnancy.
– One should discuss risks and benets of surgery in
pregnant patient.
Appendicitis is the most common complication in
pregnant women (1/1700 pregnancies).
Acute cholecystitis affects 1/1000 pregnant women.
– Physiologic changes in pregnant patient: increased
heart rate, increased stroke volume, decreased vascular
resistance, and decreased mean arterial pressure.
– Abdominal imaging should be done with ultrasound as
safest initial imaging modality.
– Anesthetic considerations: surgery during the rst tri-
mester is typically avoided given historic knowledge
of teratogenic effects of anesthesia. A single exposure
is safe without increased risk of major birth defects.
General anesthesia in the third trimester is less studied but is acceptable, though there is a higher risk
for preterm labor and abdominal organs are less
accessible because of the gravid uterus.
Conrm fetal heart tones pre- and postoperatively
in patient >24 weeks’ gestation.
– Per SCORE, laparoscopic treatment of acute abdomi-
nal disease has the same indications in pregnant and
nonpregnant patients. Surgery should “not” be with-
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462
E. Isch
held from a pregnant woman if nonsurgical management could jeopardize the health of the mother.
– Laparoscopic entry should be with Hasson technique
or optical entry in the Left upper quadrant.
• Pregnant trauma patient’s uterus is shielded by the pelvis
for rst 12 weeks of gestation; the uterus reaches the level
of the umbilicus by 20 weeks and then rises 1 cm per
week on average.
– Increased vulnerability of fetus, but bowel becomes
more protected by ribs
Way Question May Be Asked (Alternative Scenario)?
Your 25-year-old female patient has a normal appendix
ultrasound but is found to have fetal heart rate that is persistently out of the range of normal (110–160 beats per minute).
What is the next step in your treatment plan?
How toAnswer?
• Initial management includes placing the patient in the left
lateral decubitus position and administration of crystalloid and supplemental oxygen. In absence of responsive
fetal heart rate, emergency cesarean section should be
considered.
Common Curveballs
• Thyroid disease:
– One cannot use radioactive iodine 131in thyroid dis-
ease; one should recommend surgery instead.
– Propylthiouracil (PTU) instead of methimazole for
thyroid disease in pregnant patients.
• Insulinoma: early pregnancy can be mistaken for this syndrome (in presence of hypoglycemia).
• Hemorrhoids: consider managing this diagnosis
non-operatively.
• Breast cancer: cannot receive external beam radiation
therapy, sentinel lymph node biopsy, or antimetabolitebased chemotherapy until patient delivers. It is generally
considered acceptable to usually treat until after delivery.
– Do not perform therapeutic abortion to allow for treat-
ment of breast cancer.
– Bloody nipple discharge during third trimester can be
normal.
• Imaging: acceptable to perform CT scan in patient in
emergency situation, particularly after 20 weeks (once
organogenesis is complete—after 20 week’s gestation).
• MRI scan without gadolinium is an option in the second
trimester of pregnancy. This is typically not recommended
during the rst trimester because of the theoretical risk of
local generation of heat due to the high-frequency currents induced by radiofrequency elds.
Clean Kills
• Failure to obtain urine HCG prior to surgery
• Failure to obtain urine HCG on trauma patient
• Administration of methimazole in pregnant patient
• Utilization of radioactive iodine in pregnant patient
• Surgical management of hemorrhoids in pregnant patient
• Performance of external beam radiation therapy for the
management of breast cancer in pregnant patient
• Administration of antimetabolite chemotherapy on pregnant patient
• Failure to operate on peritonitis in setting of pregnancy
• Failure to obtain domestic violence screening in pregnant
trauma patient
Bonus Points
• Performance of Kleihauer-Betke test in all patients who
are Rh-negative and Rh-positive and who sustain blunt
injury.
• Fetal FAST in trauma patient (number of fetuses and their
position, placental location, amniotic uid volume, fetal
cardiac activity, femur length).
• Domestic violence is the most common cause of trauma
in pregnant patients—8307 of 100,000 live births.
• Maternal positioning intraoperatively: elevate right side
to avoid compression of the vena cava.
• Perimortem cesarean section must be performed within
5min of maternal demise.
Words ofWisdom
Generally speaking, in pregnant patients with surgical problems, appropriate surgical treatment of inammatory conditions of the abdomen is the best course to maintain fetal
well-being. Do not let the examiners lead one into nonoperative management of straightforward surgical problems in
such patients.
Bibliography
Score. Available at: https://www.surgicalcore.org/modulecontent.
aspx?id=1000476.

Part XVIII
Skin and Soft Issue

Melanoma (Thin)
CandaceL.Ward andElenaPaulusLamb
135
Way Question May BeAsked?
“A 57-year-old male presents to your ofce after a referral
from his primary care physician for a skin lesion on his right
shoulder. He is a nonsmoker and fair-skinned. He has no past
medical history and is an avid surfer. He has never had skin
lesions before and has no relevant family history.”
How toAnswer
• Complete history and physical:
– History:
How long has this skin lesion been present? Has it
changed?
Bleeding, ulceration, or itching of lesion?
History of immunosuppression or excessive sun
exposure.
Swelling of lymph node basins, including the axilla,
inguinal, cervical, etc.
– Physical exam:
Complete skin exam—evaluate lesion for ABCDEs
(asymmetry, border, color, diameter, evolving)
Complete lymph node exam
– Diagnostic tests:
Usual labs (CBC, BMP, LFTs—likely to be
unremarkable).
Full-thickness biopsy.
Once pathology is positive, will need to know thickness of the lesion (Breslow depth of invasion) and
presence or absence of ulceration.
• Dermal mitotic rate is useful for prognosis but
not necessary for treatment/staging.
If the nodal exam is equivocal, consider a nodal
basin ultrasound.
C. L. Ward (*) · E. P. Lamb
Department of Surgery, Jefferson Einstein Medical Center,
Philadelphia, PA, USA
e-mail: Elena.Lamb@jefferson.edu
Further imaging indicated for stage III/IV disease—
PET/CT, brain MRI for patients with neurologic
symptoms or distant metastases.
• Considerations prior to surgical intervention for thin
melanoma:
– Staging:
T stage: “thin” melanoma is ≤1mm in thickness.
• T1a is <0.8 mm without ulceration or high
mitotic rate.
• T1b is either <0.8 mm with ulceration or
0.8–1.0mm with or without ulceration.
• No sentinel node biopsy (SLNB): clinical stage IA,
T1a melanoma without other adverse features.
• Consider SLNB if clinical stage IB, T1b melanoma, or T1a lesions >0.5 mm with other adverse
features. It is worthwhile to present these at a
tumor board for discussion.
N stage:
• Perform preoperative lymphoscintigraphy and
intraoperative intradermal isosulfan blue dye
injection.
• Nodal status correlates best with survival.
• Perform SLNB at same procedure as wide local
excision if able.
M stage: imaging preoperatively based on physical
exam and history.
Provide an educated determination of stage:
• Patients with in situ melanoma are stage 0.
• Those with invasive melanoma and clinically
negative lymph nodes are stage I–II.
– Stage I: <1mm thick with (stage IB) or with-
out (IA) ulceration and mitotic rate 0/mm
– Stage II: >1-mm-thick lesion with any fea-
tures and clinically negative nodes
Exception: T2a without ulceration
(1.0–2.0 mm) is stage IB.
• Patients with palpable lymph nodes, in-transit
disease, or microsatellites are stage III.
– Positive sentinel lymph nodes upstage mela-
noma to stage III at minimum.
2
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