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Файл:Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_636_Библиотеки_им_академика_М_И_Перельмана.pdf
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- •Preface
- •Contents
- •Contributors
- •Puborectalis Muscle
- •Iliococcygeus Muscle
- •Pubococcygeus Muscle
- •Mesorectum
- •Presacral Fascia
- •Retrosacral Fascia
- •Waldeyer’s Fascia
- •Denonvilliers’ Fascia
- •Lateral Ligaments
- •Anorectal Spaces
- •Perianal Space
- •Intersphincteric Space
- •Submucous Space
- •Ischioanal/Ischiorectal Space
- •Supralevator Space
- •Anal Canal Epithelium
- •Internal Anal Sphincter
- •Conjoined Longitudinal Muscle
- •External Anal Sphincter
- •Perineal Body
- •Pelvic Floor Muscles
- •Retrorectal Space
- •Rectal Blood Supply
- •Superior Rectal Artery
- •Middle Rectal Artery
- •Inferior Rectal Artery
- •Cecum
- •The Appendix
- •Ascending Colon
- •Transverse Colon
- •Descending Colon
- •Sigmoid Colon
- •Rectosigmoid Junction
- •Blood Supply
- •Superior Mesenteric Artery
- •Inferior Mesenteric Artery
- •Venous Drainage
- •Lymphatic Drainage
- •Nervous Innervation
- •Embryology
- •Non-rotation
- •Malrotation
- •Reversed Rotation
- •Omphalocele
- •Internal Hernias
- •Proximal Colon Duplication
- •Meckel’s Diverticulum
- •Hirschsprung’s Disease
- •Anorectal Malformations
- •Anal Stenosis
- •Membranous Atresia
- •Anal Agenesis
- •Anorectal Agenesis
- •Rectal Atresia or “High Atresia”
- •Persistent Cloaca
- •2: Colonic Physiology
- •Colonic Anatomy
- •Introduction
- •Colonic Wall Anatomy
- •Colonic Epithelial Cell Types
- •Colonic Flora
- •Electrolyte Regulation and Water Absorption
- •Short-Chain Fatty Acid Absorption
- •Secretory Role of the Colonic Epithelium
- •Regulation of Electrolyte and Water Absorption and Secretion
- •Colonic Innervation
- •Colonic Motility
- •Cellular Basis of Motility
- •Motility Patterns and Measurement
- •Introduction
- •Normal Continence
- •Rectal Capacity
- •Structural Considerations
- •Normal Defecation
- •Obstructed Defecation
- •Functional Anorectal Pain
- •4: Endoscopy
- •Introduction
- •The Complete Anorectal Examination
- •Patient Position
- •Prone Jackknife
- •Left Lateral
- •Digital Rectal Examination
- •Anoscopy/Proctoscopy
- •Anoscopy
- •Proctoscopy
- •Flexible Endoscopy
- •Flexible Endoscopic Insertion Techniques
- •Torque
- •Dithering/Jiggle
- •Slide-By
- •Special Considerations
- •The Patient Requiring Antibiotics
- •The Anticoagulated Patient
- •Incomplete Colonoscopy
- •Procedure
- •The Endoscopy Suite
- •Instruments
- •Sedation
- •Nitrous Oxide
- •Ketamine
- •Propofol
- •Colonoscopy Technique
- •Anal Intubation
- •Sigmoid Colon
- •Sigmoid-Descending Junction
- •Descending Colon
- •Splenic Flexure
- •Transverse Colon
- •Hepatic Flexure
- •Cecum
- •Patient Position
- •Abdominal Pressure
- •Sigmoidoscopy
- •Colonoscopy
- •Bowel Preparation
- •Ileocecal Valve Intubation
- •Terminal Ileum
- •Alternate Techniques
- •Chromocolonoscopy (Chromoendoscopy)
- •Full-Spectrum Endoscopy
- •Complications
- •Sedation Complications
- •Vasovagal/Cardiac Arrhythmia
- •Pulmonary
- •Procedural Complications
- •Splenic Injury
- •Perforation
- •Post-polypectomy Syndrome
- •Bleeding
- •Infectious Complications
- •Simulation
- •Documentation
- •Quality
- •PillCam Endoscopy
- •Introduction
- •Polypectomy Techniques
- •Endoscopic Mucosal Resection
- •Endoscopic Submucosal Dissection
- •Combined Endo-Laparoscopic Surgery (CELS)
- •Major Abdominal Surgery
- •Anorectal Surgery
- •Preoperative Testing
- •Laboratory Studies
- •Electrocardiogram
- •Chest X-ray
- •Initial Workup
- •Who Needs Additional Testing?
- •Preoperative “Optimization”
- •Coronary Stent Management
- •AICD/Pacemaker Management
- •COPD
- •Obstructive Sleep Apnea (OSA)
- •Diabetes
- •Obesity
- •Malnutrition
- •Solid Organ Transplant Recipients
- •Substance Abuse
- •Alcohol
- •Tobacco
- •Opioids
- •Medications
- •Anticoagulation
- •Immunosuppressive Agents
- •Chemotherapy
- •Introduction
- •Preoperative Management
- •Patient Education
- •Intraoperative Pathway
- •Minimally Invasive Colorectal Surgery
- •Intraoperative Fluid Administration
- •Analgesia
- •Venous Thromboembolism (VTE) Prophylaxis
- •Postoperative Recovery
- •Analgesia
- •Intravenous Fluid Management
- •Venous Thromboembolism (VTE) Prophylaxis
- •Quality Pathway Evaluation Measures
- •Quality Improvement Measures
- •8: Postoperative Complications
- •Introduction
- •Ureteral Injury
- •Bladder Injury
- •Urethral Injury
- •IV Fluid Management
- •Wound Management
- •Bladder Management
- •Pain Management
- •Academic Medical Center
- •Wound Complications
- •Preoperative Considerations
- •Perioperative Interventions
- •Long-Term Complications
- •Genitourinary Complications
- •Fertility Complications
- •Bowel Dysfunction
- •9: Anastomotic Construction
- •Introduction
- •Surgical Staplers
- •Handsewn Anastomoses
- •Compression Anastomoses
- •Tension
- •Blood Supply
- •Prophylactic Drainage
- •Diversion
- •High-Risk Anastomoses
- •Abdominal Anastomoses
- •Small Bowel Anastomoses
- •Ileocolic Anastomoses
- •Pelvic Anastomoses
- •Stapled Colorectal Anastomoses
- •Handsewn Colorectal Anastomosis
- •Ileorectal Anastomosis
- •Neorectal Reservoirs
- •Handsewn Coloanal Anastomosis
- •Unanticipated Pelvic Anastomosis
- •Inadequate Colonic Length
- •Intraoperative Anastomotic Failure
- •10: Anastomotic Complications
- •Anastomotic Leak
- •Overview
- •Consequences
- •Prevention
- •Diagnosis
- •Treatment
- •Anastomotic Stricture
- •Anastomotic Bleeding
- •Introduction
- •Patient History
- •Levator Syndrome
- •Physical Examination
- •Abdominal Examination
- •Inguinal Examination
- •Digital Rectal Examination
- •Conclusion
- •12: Hemorrhoids
- •Anatomy
- •Etiology
- •Epidemiology
- •Clinical Presentation
- •History
- •Physical Examination
- •Treatment
- •Medical Management
- •Dietary
- •Topical Therapies
- •Oral Therapy
- •Rubber Band Ligation
- •Infrared Photocoagulation
- •Sclerotherapy
- •Excisional Hemorrhoidectomy-Closed Technique
- •Excisional Hemorrhoidectomy Open Technique (Milligan-Morgan)
- •Excisional Hemorrhoidectomy (Circumferential or Whitehead)
- •Urinary Retention
- •Postoperative Hemorrhage
- •Anal Stenosis
- •Postoperative Infection
- •Fecal Incontinence
- •Stapled Hemorrhoidopexy
- •Transanal Hemorrhoidal Dearterialization
- •Special Clinical Scenarios
- •Thrombosed External Hemorrhoid
- •Pregnancy
- •Crohn’s Disease
- •Immunocompromised Patients
- •13: Anal Fissure
- •Pathogenesis
- •Non-operative Treatment
- •Healing Rates in Acute Anal Fissure
- •Healing Rates in Chronic Anal Fissure
- •Topical
- •Nitroglycerin
- •Calcium Channel Blockers
- •Botulinum Toxin Type A
- •Operative Treatment
- •Anal Dilation
- •Anal Sphincterotomy (Technique)
- •Outcomes Between Closed and Open Anal Sphincterotomy
- •Extent of Sphincterotomy
- •Fissurectomy
- •Results of Sphincterotomy
- •Fissures Without Anal Hypertonicity
- •Crohn’s Disease
- •Conclusions
- •Pathophysiology
- •Anatomy
- •Etiology
- •Evaluation
- •Physical Examination
- •Imaging
- •Computed Tomography (CT)
- •Magnetic Resonance Imaging (MRI)
- •Endoanal Ultrasound (EAUS)
- •Transperineal Sonography (TP-US)
- •Treatment
- •Catheter Drainage
- •Postoperative Management
- •Complications
- •Immediate Postoperative Period
- •Misdiagnosis
- •Special Considerations
- •Necrotizing Anorectal Infection (Fournier’s Gangrene)
- •Diagnosis
- •Treatment
- •Outcomes
- •Anal Fistula
- •Etiology
- •Diagnosis
- •Fistulography
- •Endoanal Ultrasound
- •Magnetic Resonance Imaging
- •Treatment
- •Lay-Open Technique (Fistulotomy)
- •Setons
- •Advancement Flap
- •Technique
- •Technique
- •Fibrin Glue
- •Technique
- •Anal Fistula Plug
- •Technique
- •Novel Techniques
- •15: Complex Anorectal Fistulas
- •Introduction
- •Complex or Recurrent Cryptoglandular Fistulas
- •Surgical Treatment
- •Seton
- •Anal Flap
- •Anal Fistula Plug
- •Fibrin Glue
- •Outcomes
- •Seton
- •Advancement Flap
- •Anal Fistula Plug
- •Fibrin Glue
- •Rectourethral Fistulas
- •Surgical Treatment
- •Transanal Approach
- •Posterior Approach
- •Transperineal Approach
- •Transabdominal Approach
- •Outcome
- •Postoperative Fistulas
- •Surgical Treatment
- •Outcome
- •16: Rectovaginal Fistula
- •Obstetric Injury
- •Cryptoglandular Disease
- •Crohn’s Disease
- •Endorectal Repairs
- •Transperineal Repairs
- •Tissue Transposition Repairs
- •Martius Flap
- •Gracilis Muscle Transposition
- •Transvaginal Repairs
- •Transabdominal Repair
- •Alternate Repairs
- •Background
- •Etiology
- •Clinical Presentation/Diagnosis
- •Treatment
- •Non-operative Management
- •Operative/Excisional Management
- •Basic Procedures
- •Complex Procedures
- •Karydakis Flap
- •Cleft Lift Procedure (See Video 17.1)
- •Rhomboid/Limberg Flap (See Video 17.2)
- •Disease Recurrence
- •Hidradenitis Suppurativa
- •Etiology/Presentation/Diagnosis
- •Treatment
- •Medical Therapy
- •Surgical/Excisional Therapy
- •Introduction
- •Irritants
- •Steroid-Inducing Itching
- •Infectious
- •Dermatologic
- •Neoplasms
- •Anorectal Conditions
- •Systemic Diseases
- •Physical Examination
- •Infectious
- •Dermatologic
- •Neoplasms
- •Biochemical Testing
- •Microbiology Testing
- •Patch Testing
- •Anoscopy: Proctoscopy
- •Biopsy
- •Evidence-Based Management
- •Primary Prutitis Ani
- •Secondary Prutitis Ani
- •Infectious
- •Dermatologic
- •Systemic Diseases
- •19: Sexually Transmitted Infections
- •Introduction
- •Perianal or Genital Lesions
- •Proctitis
- •Proctocolitis
- •Enteritis
- •Gonorrhea
- •Epidemiology
- •Clinical Presentation
- •Emerging Antibiotic Resistance
- •Chlamydia
- •Epidemiology
- •Clinical Presentation
- •Lymphogranuloma Venereum
- •Epidemiology
- •Clinical Presentation
- •Treatment
- •Syphilis
- •Epidemiology
- •Clinical Presentation
- •Testing Recommendations
- •Treatment
- •Chancroid
- •Granuloma Inguinale aka Donovanosis
- •Herpes
- •Epidemiology
- •Clinical Presentation
- •Treatment
- •Human Papillomavirus
- •Epidemiology
- •Clinical Presentation
- •Testing
- •Treatment
- •Vaccine
- •Epidemiology
- •Testing
- •Anorectal Issues
- •Molluscum Contagiosum
- •Pubic Lice: Phthirus pubis
- •Scabies
- •20: Anal Intraepithelial Neoplasia
- •Introduction
- •Symptoms
- •Epidemiology
- •Screening/Surveillance
- •Diagnosis
- •Treatment
- •Management Strategies
- •Progression
- •Prevention
- •21: Anal Cancer
- •Anal Squamous Cell Carcinoma
- •Anal Melanoma
- •Anal Adenocarcinoma
- •22: Presacral Tumors
- •General Considerations
- •Anatomic Considerations
- •Diagnosis
- •Management
- •Outcomes
- •Chromosomal Instability
- •Microsatellite Instability
- •CpG Island Methylator Phenotype (CIMP)
- •Adenomatous Polyposis Syndromes
- •Familial Adenomatous Polyposis
- •Clinical Presentation
- •Underlying Genetics
- •Diagnosis
- •CRC Risk
- •FAP Extracolonic Manifestations
- •Management
- •Screening
- •Treatment
- •Colorectal
- •Duodenal Adenomas
- •Desmoid Disease
- •Thyroid Neoplasia
- •MUTYH-Associated Polyposis
- •Clinical Presentation
- •Underlying Genetics
- •Diagnosis
- •CRC Risk
- •Extracolonic Cancer Risk
- •Management
- •Screening
- •Treatment
- •Polymerase Proofreading-Associated Polyposis
- •Hamartomatous Polyposis Syndromes
- •Juvenile Polyposis Syndrome
- •Clinical Presentation
- •Underlying Genetics
- •Diagnosis
- •Management
- •Screening
- •Treatment
- •Peutz-Jeghers Syndrome
- •Clinical Presentation
- •Underlying Genetics
- •Diagnosis
- •Management
- •Surveillance
- •Polypectomy
- •Surgery
- •PTEN Hamartoma Tumor Syndrome (PHTS)
- •Clinical Presentation
- •Underlying Genetics
- •Diagnosis
- •CRC Risk Management
- •Serrated Polyposis Syndrome (SPS)
- •Clinical Presentation
- •Underlying Genetics
- •Diagnosis
- •CRC Risk
- •Management
- •Screening
- •Treatment
- •Lynch Syndrome
- •Genotype-Phenotype Correlations
- •Muir-Torre Syndrome (MTS)
- •Turcot’s Syndrome
- •Colorectal Cancer Risk
- •Other LS-Associated Cancer Risk
- •Diagnosis
- •Individual Whose Family Meets Amsterdam Criteria but Does Not Have Any Clinical Phenotype
- •Clinical Management
- •Screening
- •Introduction
- •Recommended Screening Guidelines
- •Screening Cessation
- •Colonoscopy
- •Incomplete Colonoscopy
- •Complications
- •CT Colonography (CTC) or Virtual Colonoscopy
- •Flexible Sigmoidoscopy
- •Complications
- •Fecal Occult Blood Testing (FOBT)/Fecal Immunochemical Testing (FIT)
- •Stool DNA Testing
- •Double-Contrast Barium Enema (DCBE)
- •Surveillance
- •History
- •Adenoma
- •Hamartomas Polyps
- •Early Cancer (T1) Within Polyp
- •Chemoprevention
- •Background
- •Clinical Presentation
- •Preoperative Evaluation
- •Tumor Localization
- •Total Colon Evaluation
- •Carcinoembryonic Antigen (CEA)
- •Radiographic Evaluation
- •Lymph Node Evaluation
- •Lynch Syndrome Phenotype
- •26: The Surgical Management of Colon Cancer
- •Preoperative Preparation
- •Physiologic Assessment
- •Tumor Localization
- •Surgical Technique
- •Extent of Resection
- •Mesocolic Resection
- •Right Colectomy
- •Open Approach
- •Lateral-to-Medial Approach
- •Posterior (Inferior-to-Superior) Approach
- •Superior to Inferior Approach
- •Medial-to-Lateral Approach
- •Anastomosis
- •Laparoscopic Approach
- •Medial-to-Lateral Approach
- •Posterior (Inferior-to-Superior) Approach
- •Left Colectomy
- •Open
- •Anastomotic Assessment
- •Hand-Assisted Medial-to-Lateral Approach
- •Subtotal Colectomy
- •Open Approach
- •Laparoscopic Approach
- •Total Abdominal Colectomy with Ileorectal Anastomosis
- •Special Circumstances
- •Laparoscopy
- •Obstructing Colon Cancers
- •Perforated Colon Cancers
- •Management of Primary Colon Cancer in the Setting of Distant Metastasis
- •Outcomes for Colon Cancer
- •Short-Term Outcomes
- •Long-Term Outcomes
- •Introduction
- •Total Colon Evaluation
- •Locoregional Imaging
- •Computed Tomography
- •Endorectal Ultrasound
- •T Staging
- •N Staging
- •Magnetic Resonance
- •Whole-Body Imaging
- •Computed Tomography
- •Positron Emission Tomography (PET)
- •28: Rectal Cancer: Neoadjuvant Therapy
- •Introduction
- •Historical Context
- •Postoperative Radiotherapy
- •Preoperative Radiotherapy
- •Radiosensitizing Agents
- •Preoperative Versus Postoperative Radiation
- •Short- Versus Long-Course Preoperative Radiotherapy
- •Choosing Optimal Treatment Regimens
- •The European Approach
- •Selected Adjuvant Systemic Chemotherapy
- •Selective Nonoperative Management
- •Techniques
- •Results
- •Lymphovascular Invasion
- •Tumor Budding
- •Introduction
- •Neoadjuvant Chemoradiotherapy
- •31: Proctectomy
- •Pathological Assessment
- •Preoperative Preparation
- •Operative Approaches
- •Open Low Anterior Resection (LAR)
- •Laparoscopic Low Anterior Resection
- •Robotic Low Anterior Resection
- •Abdominoperineal Resection (APR)
- •Extralevator or “Cylindrical” APR
- •Special Considerations
- •Distal Margin
- •Coloanal Anastomosis
- •Fecal Diversion
- •Extended Resection
- •Intraoperative Radiation Therapy
- •Flap Closure Following Abdominoperineal Resection
- •Functional Outcomes
- •Oncologic Outcomes
- •Multidisciplinary Rectal Cancer Care
- •32: Rectal Cancer Decision-Making
- •Assessment
- •Early Rectal Neoplasms
- •Local Excision
- •Endoscopically Excised Malignant Polyps
- •Surgical Considerations
- •Intraoperative Decisions
- •Midrectal Cancers
- •Low Rectal Cancers
- •Low Hartmann Resection Versus APR
- •Special Situations
- •Obstructing Rectal Cancer
- •Perforated Rectal Cancer
- •Synchronous Hepatic Metastases
- •33: Colorectal Cancer: Postoperative Adjuvant Therapy
- •Colon Cancer
- •Stage III Colon Cancer
- •Stage II Colon Cancer
- •Rectal Cancer
- •Patients Who Did Not Undergo Neoadjuvant Therapy
- •Patients Who Underwent Neoadjuvant Radiotherapy/Chemoradiotherapy
- •Patients Undergoing Local Excision
- •34: Colorectal Cancer: Surveillance After Curative-Intent Therapy
- •Introduction
- •Physical Examination
- •Laboratory Testing
- •Abdominal Imaging
- •Chest Imaging
- •Colonoscopy
- •Stage 1 Disease
- •Cost
- •Introduction
- •Determining Resectability
- •Multimodal Therapy Including Intraoperative Radiation
- •General Considerations
- •Recurrent Colon Cancer
- •Recurrent Rectal Cancer
- •Recurrences that Extend Anteriorly
- •Resection that Includes Sacrectomy
- •Stage I: Anterior Component
- •Stage II: Posterior Component
- •Stage III: Spinal Reconstructive Component
- •Soft Tissue Reconstruction
- •Recurrent Colon Cancer
- •Recurrent Rectal Cancer
- •Sacropelvic Resections
- •Palliative Approach
- •Introduction
- •Diagnostic Strategies
- •Computed Tomography
- •Positron Emission Tomography (PET)
- •Magnetic Resonance Imaging
- •Contrast-Enhanced Ultrasound
- •Biopsy
- •Multidisciplinary Evaluation
- •Surgical Emergency
- •Self-Expanding Intraluminal Metal Stents
- •Liver-First Strategy
- •Colon-First Strategy
- •Margin Status
- •Other Liver Metastasis Strategies: Hepatic Intra-arterial Chemotherapy/Chemoembolization
- •Pulmonary Metastasis
- •Peritoneal Metastasis
- •Ovarian Metastases
- •Bone
- •Brain
- •Pancreas
- •Adrenal
- •Retroperitoneal Lymph Nodes
- •37: Appendiceal Neoplasms
- •Introduction
- •Epidemiology
- •Epithelial Neoplasms
- •Neuroendocrine Appendiceal Lesions/Carcinoid Tumors
- •Goblet Cell Carcinoids
- •Clinical Features
- •Diagnostic Procedures
- •Medical Management
- •Appendectomy
- •Right Hemicolectomy

Infrared coagulator
12 Hemorrhoids
Fig. 12.8 Infrared photocoagulation technique
• Infrared radiation generates heat that penetrates approximately 3mm and leads to heat
necrosis that causes tissue destruction and
eventually brosis and scarring.
– Once the patient is positioned, the tip of the
infrared coagulator is used three to four
times at the apex of each internal
hemorrhoid.
– Each application of the photocoagulation is
done for 1–1.5 s (although the device
allows a range of 0.1–3s) (Fig.12.8).
– There is usually minimal discomfort once
the treatment is complete, and all three
hemorrhoid complexes can be treated at the
same session.
• Infrared coagulation is most effective for the
treatment of bleeding; it is less useful for
treating signicant prolapse of hemorrhoids
and may be less painful than hemorrhoidal
banding.
• Complications are rare following infrared
photocoagulation and consist primarily of
pain and bleeding due to excessive application
of energy.
• Bipolar diathermy and direct current electrotherapy are not as popular as infrared coagulation as patients require subsequent operative
therapy.
161
Sclerotherapy
• A sclerotherapy solution is injected at the
apex of the internal hemorrhoid complex
which leads to scarring and brosis and xation of the internal hemorrhoidal complex.
• Many different agents have been tried including phenol, carbolic acid, quinine in urea,
sodium morrhuate, and sodium tetradecyl.
• A spinal needle is used to place approximately
1–1.5mL of the agent in a submucosal fashion
at the apex of the internal hemorrhoid
(Fig.12.9).
• Placement too supercially can cause mucosal
sloughing, while placing it too deep leads to
more risk of infection, abscess, or signicant
pain.
• Urinary retention and impotence postinjection
sclerotherapy have also been reported.
• Sclerotherapy is reported to be highly successful but is still not quite as effective as rubber
band ligation especially for grade 3
hemorrhoids.
• The best role for sclerotherapy may be in
patients that require anticoagulation since the
risk of bleeding is minimal with this
technique.
• Multiple repeat attempts should be avoided
due to the cumulative risk of stricture.
Operative Management
ofHemorrhoids
• Patients who have failed medical management
or have recurrent, persistent symptoms despite
undergoing some of the internal hemorrhoidal
treatments mentioned above.
• Typically, only 5–10% of patients with hemorrhoidal complaints require operative
hemorrhoidectomy.
• In the acute setting, patients with extensive
thrombosed hemorrhoids or strangulated,
gangrenous hemorrhoids need immediate
attention and operative intervention
(Fig.12.10).
• Excisional hemorrhoidectomy has excellent
results, minimal recurrence rates, and few
complications yet is associated with signicant postoperative pain.

162
Hemmorhoid
Fig. 12.9 Sclerotherapy
technique
Fig. 12.10 Strangulated, gangrenous hemorrhoids
Excisional Hemorrhoidectomy-Closed Technique
• Dr. Lynn Ferguson of the Ferguson Clinic rst
described the closed hemorrhoidectomy technique in the early 1950s.
• Anesthesia can be tailored to the patient and
can range from something as simple as local
anesthesia plus intravenous sedation to a full
general anesthesia with intubation.
• Positioning is per surgeon preference and
includes the options of lithotomy, prone jackknife, and left lateral decubitus.
M. Luchtefeld and R. E. Hoedema
Needle
• The operation starts with a digital exam followed by anoscopy to help clearly dene
which hemorrhoid complexes should be
excised (Fig.12.11).
• Injecting the perianal skin and hemorrhoids
with local anesthetic combined with epinephrine 1:200,000 can help to decrease bleeding
during the procedure.
• An elliptical incision is made around the
hemorrhoid starting at the perianal margin,
and a proportional incision should be made
so that the length of the incision is approximately three to four times longer than its
breadth.
• The hemorrhoid is then elevated off the underlying sphincter muscle bers.
• At the apex of the hemorrhoid, the vascular
pedicle is then clamped and then the hemorrhoid excised.
• The vascular pedicle is then suture ligated
with an absorbable suture; the same suture is
then used to reapproximate the tissue.
• When multiple hemorrhoids are removed, it
is important to maintain adequate skin and
tissue bridges between the excision sites to
minimize the risk of postoperative anal
stenosis.

12 Hemorrhoids
Fig. 12.11 Closed
hemorrhoidectomy
163
Ferguson A Ferguson B
Ferguson C Ferguson D
• A notable variation on the technique is the use
of energy devices such as the LigaSure bipolar
device or the harmonic device which both can
be used to perform the excisional hemorrhoidectomy with reports that there may be less
postoperative discomfort.
Excisional Hemorrhoidectomy Open Technique (Milligan-Morgan)
• The open technique of excisional hemorrhoidectomy is very popular in the United
Kingdom.
• This technique results in a very similar excision as the Ferguson technique except that the
wounds are not closed other than suture ligating the vascular pedicle (Fig.12.12).
Excisional Hemorrhoidectomy (Circumferential or Whitehead)
• A circumferential incision is made at the level
of the dentate line, and then the submucosal
and subdermal hemorrhoidal tissues are dissected out and removed.
• Any redundant rectal mucosa is excised and
then the remaining proximal rectal mucosa
sutured down to the anoderm.
• This operation is not in common use at this
time due to the complication of a whitehead
deformity (Fig.12.13).
Results ofHemorrhoidectomy
• Excisional hemorrhoidectomy remains the
gold standard for the long-term relief of hemorrhoidal symptoms.

164
AM
Milligan-Morgan DMilligan-Morgan C
Fig. 12.12 Open
hemorrhoidectomy
M. Luchtefeld and R. E. Hoedema
Milligan-Morgan
Fig. 12.13 Whitehead deformity. Courtesy of the
American Society of Colon and Rectal Surgeons
• Although there has been considerable controversy over the relative merits of opened versus
closed techniques, there is very little difference between the two techniques.
illigan-Morgan B
• Energy sources such as the harmonic scalpel
or the LigaSure have been compared to excisional hemorrhoidectomy.
– Studies suggest less pain and faster opera-
tive time.
– Long-term follow-up data is not yet
available.
• Less postoperative pain has been suggested
with use of simultaneous lateral internal
sphincterotomy, topical nitroglycerin, and
both oral and topical metronidazole.
Complications ofHemorrhoidectomy
Urinary Retention
• Urinary retention is one of the most common
complications following hemorrhoidectomy.

12 Hemorrhoids
Fig. 12.14 Y-V anoplasty
• The number of quadrants excised and analgesia
requirements were both important risk factors.
• Fluid restriction and pain control in the perioperative period are important to prevent this
complication.
Postoperative Hemorrhage
• Postoperative hemorrhage risk is still relatively low.
• In 1% of cases, the bleeding will occur in the
immediate postoperative period (technical error).
• Delayed hemorrhage can occur in up to 5.4%
of patients and will typically occur 7–10days
after surgery.
– Observation, packing of the anal canal or
tamponade with a Foley balloon.
– If the bleeding does not stop, then an exam
under anesthesia may be warranted.
165
Fig. 12.15 Stapled hemorrhoidectomy (PPH) (With permission from Schwandner O.Procedure for Prolapse and
Hemorrhoids (PPH; Stapled Hemorrhoidopexy). In:
Wexner SD, Fleshman JW. Colon and Rectal Surgery:
Anorectal Operations. Wolter Kluwers, 2011. © Copyright
Wolters Kluwer 2011)
• Prophylactic antibiotic therapy is not indicated for elective hemorrhoid surgery.
• If abscess or cellulitis occurs, it may require
antibiotics and/or operative drainage.
Anal Stenosis
• Anal stenosis is rare but can occur if excessive
anoderm is removed at the time of the
hemorrhoidectomy.
• The most common setting for anal stentosis to
occur is an emergency hemorrhoidectomy for
prolapsed thrombosed hemorrhoids. Care should
be taken to avoid resecting too much anoderm.
• Treatment can be as simple as the use of bulk
laxatives but may require dilation and or anoplasty (Fig.12.14).
Postoperative Infection
• Postoperative infections are surprisingly
uncommon (less than 1%).
Fecal Incontinence
• Fecal soiling or incontinence following hemorrhoidectomy is rather unusual.
– Sphincter stretch
– Direct injury to the sphincter complex
– Loss of the hemorrhoidal piles (thought to
contribute approximately 10–15% of
continence)
Stapled Hemorrhoidopexy
• Developed as a procedure for prolapse using a
hemorrhoidopexy technique (Fig.12.15).
• End-to-end circular stapler is used to excise a
circumferential ring of internal hemorrhoids,

166
M. Luchtefeld and R. E. Hoedema
including the mucosa and submucosa above
the dentate line (Fig.12.16).
• The remaining hemorrhoids are pulled up into
the anal canal and xed in place.
• Some of the blood supply to the remaining
hemorrhoids is also interrupted so that there
is less engorgement of the remaining
hemorrhoids.
Fig. 12.16 Stapled hemorrhoidectomy technique

12 Hemorrhoids
• Indications for stapled hemorrhoidopexy
include patients with second- or third-degree
hemorrhoids.
• Because the operation occurs above the dentate
line, there has been reported less postoperative
pain compared to a hemorrhoidectomy.
• Procedure
– With the anoscope in place, a purse-string
suture is placed in a circumferential fashion into the submucosa approximately
2cm above the transitional zone.
– The head of the stapler (similar to an EEA,
but the head is not detachable) is then
introduced into the rectum past the pursestring suture.
– The purse string is tied down around the
stapler, and then the anvil is very slowly
closed while giving gentle traction on the
purse-string suture externally.
– Once closed, the stapler is red and then
removed along with the excised tissue.
– The staple line should be inspected care-
fully for bleeding and may require suture
ligation.
• Outcomes
– Randomized controlled studies conrmed
there was signicantly less postoperative
pain compared to excisional hemorrhoidectomy and with equal relief of hemorrhoidal symptoms.
– Compared to excisional hemorrhoidec-
tomy, patients undergoing excisional hemorrhoidectomy had fewer recurrences of
prolapse and fewer symptoms than those
undergoing stapled hemorrhoidopexy.
– Some unique complications that have been
reported with this procedure include rectal
perforation, persistent rectal pain, retroperitoneal sepsis, rectal obstruction, and rectovaginal stula.
Transanal Hemorrhoidal Dearterialization
• Transanal hemorrhoidal dearterialization
(THD) is a relatively new technique rst
described by Morinaga in 1995 (Fig.12.17).
• Doppler is used to guide ligation of the arterial
inow to the hemorrhoids.
167
Fig. 12.17 Transanal hemorrhoidal dearterialization
device
Fig. 12.18 Transanal hemorrhoidal dearterialization
technique
• Although not initially described, suture rectopexy can be done at the same setting to minimize prolapse.
• Procedure
– A specialized anoscope with a Doppler is
introduced into the anal canal (Fig.12.18).
– The Doppler is used as the anoscope is
rotated until one of the feeding arteries is
identied and suture ligated.
– The anoscope is rotated until all of the sig-
nicant arteries are identied and ligated

168
l
Anal canal
M. Luchtefeld and R. E. Hoedema
(generally four to six arteries, but this can
be quite variable).
– Depending on the need to correct the pro-
lapse, a suture mucopexy can be performed
immediately following the ligation using
the same stitch.
• Outcomes
– The arterial ligation and mucopexy are all
done above the dentate line; data suggests
less painful than a hemorrhoidectomy.
– It appears to be a safe alternative with a
recurrence rate of 10.8% for prolapse,
9.7% for bleeding, and 8.7% for pain at
defecation at follow-up of 1year or more.
Special Clinical Scenarios
Thrombosed External Hemorrhoid
• Patient presents with the acute onset of anal
pain along with a hard lump in the perianal
region (Fig.12.3).
• The perianal pain and discomfort are constant
and can be worse around day 3 or 4.
• The thrombosis can sometimes cause pressure
ulceration and eventually skin necrosis leading to a spontaneous evacuation of the clot.
• The aggressiveness of the treatment is primar-
ily driven by the patient’s symptoms.
– If the patient is relatively comfortable, it is
best to allow the thrombosis to resolve on
its own.
– If the patient presents with severe, unre-
lenting pain, excision of the thrombus can
be very helpful (Fig.12.19).
• In the ofce setting, local anesthesia can be used
at the level of the thrombosed hemorrhoid.
• The skin should be excised overlying the
thrombosis to allow clot removal.
• Bleeding is usually not troublesome and can
be controlled with pressure, silver nitrate, cautery, and suture ligation (see Video 12.1).
Strangulated (Thrombosed
Prolapsed) Hemorrhoids (Fig.12.10)
• Acute episode of pain and protrusion that is no
longer reducible.
• May also complain of urinary retention and
referred pain.
• A signicant amount of edema may be present
and, if left untreated, may progress to ulceration, necrosis, and eventually gangrene.
• Treatment usually consists of an urgent excisional hemorrhoidectomy in the operating room.
• An alternative treatment option, if the patient
does not want surgery hemorrhoid, may be
reduced using local anesthetic, applying pressure and/or massage to decrease the edema in
the tissues, and then using a combination of
rubber band ligations and thrombectomies.
This will provide immediate relief for the
patient and will not usually require a future
surgical hemorrhoidectomy.
Fig. 12.19 Enucleation
of the thrombosed
hemorrhoid
Clot and plexus stil
attached to the
underside of the
fusiform island of
skin

12 Hemorrhoids
169
Portal Hypertension
andHemorrhoids
• Rectal varices in patients with portal hypertension are a distinct entity.
• Rectal varices in patients with portal hypertension provide collateral circulation from the
portal system into the systemic venous
circulation.
• Fortunately, anorectal varices rarely bleed.
• Treatment recommendations include:
– Medical management of the portal pressures,
sclerotherapy, suture ligation, stapled anopexy,
and, lastly, TIPS and portosystemic shunts
Pregnancy
• Hemorrhoid symptoms present during pregnancy usually resolve after delivery and rarely
need intervention.
• Surgical intervention is not warranted unless
strangulated, gangrenous hemorrhoids
(approximately 2% incidence).
Crohn’s Disease
Crohn’s disease due to prolonged wound healing and ulcerations.
• Crohn’s disease is not an absolute contraindication to surgical intervention when disease
is controlled medically as the rate of prolonged healing and associated complications
is much less.
• Hemorrhoidectomy, however, should not be
performed in those patients with anorectal
Crohn’s disease or Crohn’s proctitis.
Immunocompromised Patients
• Similar to the Crohn’s disease population,
extreme caution should be exercised when considering surgical therapies due to risk of poor
wound healing and infectious complications.
• The HIV/AIDS population does suffer a
higher degree of complications post
hemorrhoidectomy.
• Patients who are neutropenic should be offered
non-operative therapies rst although the mortality rate in this patient population who
undergoes a hemorrhoidectomy is not higher.
• Any anorectal surgical intervention must be
performed with caution in patients with
Fig. 12.20 Treatment
algorithm for
symptomaticemorrhoids.
RBL rubber band ligation;
IRC infrared coagulation;
THD transanal
hemorrhoidal
dearterialization;
PPHprocedure for
prolapsing hemorrhoids;
BHC bipolar hyperthermic
coagulation; ALTA
Aluminum potassium
sulfate and tannic acid
(sclerotherapy)
Full history and examination including
rectal exam and proctoscopy
Grade 1
Dietary manipulation
BHC or IRC
ALTA
Grade 2Grade 3Grade 4 Mixed hemorrhoid
Recurrent symptoms
RBL, ALTA Hemorrhoidectomy
Figure 12.20 shows a treatment algorithm for
symptomatic hemorrhoids.
Management of symptomatic hemorrhoids
Exclude malignancy with appropriate
rectal and colonic imaging
RBL
BHC or IRC
THD
Hemorrhoidectomy
PPH (selective)
THD (selective
Reconsider diagnosis, Is there another pathology
that could account for the patient’s symptoms?
Hemorrhoidectomy

Anal Fissure
Kim C. Lu and Daniel O. Herzig
13
Key Concepts
• An acute anal ssure (symptoms <6weeks) is
likely to heal (87%) with dietary modication
and supportive care.
• In a chronic anal ssure (symptoms >6weeks),
topical nitroglycerin or calcium channel
blockers are slightly better than placebo in
inducing healing.
• Injection of botulinum toxin into the internal
anal sphincter can heal ssures refractory to
topical ointments, though this is not as effective as lateral internal anal sphincterotomy.
• Lateral internal anal sphincterotomy is the
most effective therapy in healing ssures;
there is an increased risk, however, of fecal
incontinence.
• For anal ssures associated with decreased
anal sphincter tone, a dermal advancement
ap is a reasonable option.
Electronic Supplementary Material The online version
of this chapter (https://doi.org/10.1007/978-3-030-01165-
9_13) contains supplementary material, which is available
to authorized users.
K. C. Lu (*)
Division of Gastrointestinal and General Surgery,
Department of Surgery, Oregon Health & Science
University, Portland, OR, USA
e-mail: luk@ohsu.edu
D. O. Herzig
Division of Gastroenterology and General Surgery,
Department of Surgery, Oregon Health and Science
University, Portland, OR, USA
Definition/Clinical Presentation
• An anal ssure is a tear in the epithelial lining
of the distal anal canal.
• Extremely common condition.
• Fissures can be classied as acute vs. chronic
and typical vs. atypical.
– Acute ssures (<6weeks)
• Bright red bleeding with bowel
movements.
• Sharp, burning, tearing anal pain or
spasm.
• Can last for hours after the bowel
movement.
• Physical ndings: linear separation of
the anoderm, visible with just separation of the buttocks (Fig.13.1).
• Posterior midline: the site of up to 90%
of typical anal ssures.
• Remaining minority of typical ssures
are found in the anterior midline.
– Chronic ssures (>6weeks)
• Additional physical ndings of an external sentinel tag at the external apex,
exposed internal sphincter muscle, and a
hypertrophied anal papilla at the internal apex (Fig.13.2)
– Typical ssures
• Located in the posterior or anterior
midline
• Not associated with other diseases
© ASCRS (American Society of Colon and Rectal Surgeons) 2019
S. R. Steele et al. (eds.), The ASCRS Manual of Colon and Rectal Surgery,
https://doi.org/10.1007/978-3-030-01165-9_13
171
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