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107 Basics ofMechanical Ventilation forthePracticing Surgeon
363
– ARDS (tx—low TV, high PEEP) – Pneumothorax (tx—chest tube)
• High peak and low plateau pressures – Secretions (tx—suction, chest PT) – Obstructed ETT, kinked tubing or ETT – Bronchospasm (tx—β2 agonists, steroids, IV mg, Epi)
• Sudden hypotension in patient with inverse I/E ratio
or high respiratory rate
– Intrinsic PEEP (auto-PEEP)
Auto-PEEP is the alveolar pressure applied from an incomplete exhalation (breath stacking). Auto-PEEP can be determined by an end-expiratory pause on the ventilator or the Exp wave does not go back to 0. Auto-PEEP=if total PEEP is >PEEP set. Auto-PEEP can cause increased intrathoracic pres­sure resulting in hypotension. Treatment—Increasing expiratory time or briey disconnecting the ventilator can relieve auto-PEEP.

Clean Kills

• Missing pneumothorax
• Not conrming ETT placement
• No BIS or train of four monitoring with paralytics
• Failure to call for ECMO consult
• Extubating with no cuff leak

Summary

Acute respiratory distress syndrome (ARDS) is a life­threatening condition characterized by poor oxygenation and noncompliant or “stiff” lungs. The disorder is associ­ated with capillary endothelial injury and diffuse alveo­lar damage causing hypoxia. The main goal for treatment in these patients is to prevent further acute lung injury, maintain oxygenation, and treat the underlying cause. Mechanical ventilation remains the most important aspect of managing patients with ARDS. An in-depth knowledge of lung protective ventilation, optimal PEEP strategies, rescue modes of ventilation, and adjunct treat­ments are essential for the management of ARDS.

Bonus Information

Basic Ventilator Modes

Most ventilators can be set to achieve spontaneous breathing, volume-targeted ventilation, pressure-targeted ventilation, or some combination.
Volume Control Ventilation
• Termed volume-limited, volume-control, volume-assist, or volume-targeted.
• Most common mode used in adults.
• Vent is set to reach a determined volume regardless of the pressure required.
• The clinician sets the desired TV, RR, FiO
, and PEEP.
2
Pressure Control Ventilation
• “Pressure” is the ventilator’s targeted parameter.
• Set to reach a determined pressure regardless of the vol­ume generated.
• Volume delivered is determined by the compliance of the patient’s respiratory system, airway resistance, inspira­tory time, and the pressure target.
• The clinician sets the desired PEEP, respiratory rate, FiO2, inspiratory pressure, I/E ratio, and trigger mode.
• One problem with PCV is that the volume received by the patient is variable and therefore the minute ventilation can be variable. The patient may, therefore, be subject to unpredictable or wide swings in pCO
and pH.
2
• This mode is typically used when a patient is awake, or when a patient has a high peak pressure and you are will­ing to accept some permissive hypercapnia in order to avoid barotrauma.
Pressure Support Ventilation (PSV)
• Patient-generated breaths.
• Clinician sets FiO2, inspiratory pressure, and PEEP.
• Patient dictates the RR.
• TV is dictated by the PS given, patient effort, and compliance.
• Backup apnea rate (dangerous in hypoventilating sedated patients).
Airway Pressure Release Ventilation (APRV)
• APRV is a rescue mode of ventilation that is at the extreme end of reverse I/E.
• The tidal volume is delivered and the lungs held in ina­tion for a prolonged period of time (typically 5–6s) in order to facilitate increased time of oxygen contact at the alveolar-arterial membrane and increased diffusion of oxygen into the bloodstream.
• The pressure is then released to allow a short period of ventilation, typically 0.5s, or a time in which the PEEP will not go to zero.
• Initial settings are stated in time high (T-high), time low (T-low), pressure high (P-high), and pressure low (P-low). Often starting is set to T-high of 5.5 and T-low of 0.5, P-high of whatever the patient’s plateau pressure is, and P-low of 0. Adjustments are then made based on blood gas analysis.
• Weaning APRV is accomplished by “dropping and stretching”—decreasing the P-high and increasing the
364
F. J. DiRoma and S. Bonne
T-high by a proportional amount, so as to maintain the minute ventilation. Once a patient is at a P-high of 20, they should be breathing over the P-high enough on their own to adequately ventilate and clear carbon dioxide and can be simply placed on pressure support of 20 and weaned from there.

Bibliography

Chapter 12: Surgical complications; Respiratory complications. In:
Sabiston textbook of surgery: the biological basis of modern surgi­cal practice, 21st ed.
Diamond M, Peniston HL, Sanghavi DK, etal. Acute respiratory dis-
tress syndrome. [Updated 2024 Jan 31]. In: StatPearls. Treasure Island: StatPearls Publishing; 2024.

Extracorporeal Membrane Oxygenation

VictoriaSharp andAnnHutchison
108

Concept

Most questions will be related to common indications for use and criteria for initiating therapy. Extracorporeal membrane oxygenation (ECMO) is a form of life support used to sup­port patients with respiratory or cardiac failure by providing oxygenation, removing carbon dioxide, and/or providing cir­culatory support. Venovenous (V-V) and venoarterial (V-A) are the two most common congurations.
Venovenous ECMO is indicated in severe, acute, and potentially reversible hypoxemic respiratory failure. The most common etiology is acute respiratory distress syn­drome (ARDS). Other indications include primary graft dys­function after lung transplantation, diffuse alveolar hemorrhage, and pulmonary embolism with preserved car­diac function. V-V ECMO should only be considered after optimizing conventional management strategies such as lung protective ventilation, neuromuscular blockade, and prone positioning. Inclusion criteria are based on PaO2/FiO2 ratios and acid-base status (P/F<80mmHg for >6h, <50 mgHg for >3h, or pH <7.25 with PaCO2>60mmHg for >6h with RR at 35/min and settings adjusted to keep plateau pres­sure<32mmHg). There are many relative contraindications but only two absolute contraindications: severe irreversible noncardiac organ failure or non-survivable condition (severe anoxic brain injury, end-stage malignancy) or lack of a tran­sition off of ECMO, known as “the bridge to nowhere.”
Venoarterial ECMO indications include etiologies associ­ated with acute cardiac failure as a bridge to recovery in reversible conditions, as well as a bridge to transplant or coronary artery stenting/bypass. This most commonly includes refractory cardiogenic shock, which can stem from myocardial infarction, acute decompensated heart failure from underlying cardiomyopathy, refractory ventricular
V. Sharp (*) Acute Care Surgery, Ypsilanti, MI, USA e-mail: Victoria_sharp@ihacares.com
A. Hutchison Surgical Critical Care, Little Rock, AR, USA
arrhythmias, cardiotoxic drug intoxication, peripartum car­diomyopathy, or pulmonary embolism. Criteria for initiating V-A ECMO are based on the Society for Cardiovascular Angiography and Interventions classication (Stages A–E). Contraindications are similar to those of V-V ECMO but also include severe aortic insufciency and aortic dissection.
While the goals of V-V and V-A ECMO are different (respiratory support versus circulatory support), the manage­ment principles are similar. Cannula sites are chosen based on specic patient factors. Oxygenation (V-V) and circula­tory (V-A) support is dictated by the ow rate through the circuit. CO2 removal is controlled by the sweep gas (increase sweep, increase clearance of CO2). Special considerations for V-A ECMO include the need for a distal reperfusion cath­eter for the arterial cannula as well as the presence of dual circulation (competitive ow within the aorta between the anterograde native cardiac output and the retrograde ECMO reinfusion ow).
Way Question May BeAsked?
1. “You are called to the bedside of a 57-year-old patient
who underwent ventral hernia repair earlier in the day. Per nursing report, the patient had been nauseous while drinking clear liquids and subsequently vomited. There was immediate concern for aspiration. On exam the patient is tachypneic and tachycardic; there are rhonchi present bilaterally as well as accessory muscle use. Vitals are notable for respirations of 30 breaths/min, heart rate of 120 beats/min, blood pressure of 125/73, and oxygen saturation of 83% on non-rebreather.”
2. “A 63-year-old male presents to the emergency depart-
ment with complaints of difculty breathing, feeling faint, and a racing heart. His history is signicant for recent admission following a motor vehicle accident dur­ing which he suffered a femur fracture that was repaired as well as three rib fractures. He was discharged 2 days prior to presentation and reports he has not been walking much due to the pain in his ribs. On exam he is tachy-
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_108
365
366
V. Sharp and A. Hutchison
pneic, tachycardic, and hypotensive to 83/53. There are tenderness to the left chest wall, unilateral edema of the left lower extremity, and jugular venous distention.”
How toAnswer?
History
• History of the events leading up to the presentation.
• Thorough history including chronic conditions and their severity.
• Particularly note history of cardiac conditions and signi­cant peripheral vascular disease if concerned for cardio­genic shock.
• Recent decompensation of any chronic conditions (i.e., asthma or COPD exacerbation).
• Medication history including use of cardiac medications or blood thinning agents.
Physical Examination
• Check vital signs.
• Pulmonary exam.
• Cardiac exam.
• Peripheral pulses.
• Evaluate for evidence of hypoxia or decreased perfusion including altered mental status and delayed capillary rell.
Diagnostic Tests
• Lab values including CBC, BMP, Mg, Phos, lactic acid, troponin, BNP, and arterial blood gas.
• Noninvasive hemodynamic monitoring.
• Chest XR and CT scan
– Evaluating the etiology of hypoxemia.
• EKG and echo
– To evaluate cardiac function if concerned for cardio-
genic shock.

Treatment

Common Curveballs

• Patients are borderline and require aggressive conserva­tive management.
• The presence of relative contraindications (severe coagu­lopathy, advanced age, obesity, mechanical ventilation >7days, limited vascular access).
• Evidence of “chatter” in the circuit (volume resuscitation indicated).
• Evidence of recirculation in V-V ECMO (cannula tips too close together or ow is too high).

Clean Kills

• Failure to recognize distal limb ischemia secondary to arterial cannulation.
• Failure to recognize an air embolism in the circuit.
• Failure to recognize dual circulation and its associated effects.
• Moving to V-V ECMO prior to optimizing conventional management.
• Cannulating a patient with an absolute contraindication.

Summary

Respiratory and circulatory failure are severe problems that can present in a multitude of ways in the surgical patient. Quick diagnosis and management of the present­ing problems are critical in order to optimally treat these patients. When aggressive conventional management is insufcient, early consideration and initiation of ECMO has been shown to be benecial in certain patient popula­tions. Prior to initiating ECMO, it is important to assess for potential disease reversibility or targeted interven­tion, conrm the patient meets criteria for therapy, eval­uate for possible contraindications, and ensure ECMO aligns with the patient’s overall goals of care.
• Supplemental oxygen (noninvasive vs invasive based on patient needs).
• Lung protective ventilation.
• Hemodynamic support with vasopressors and inotropes.
• Volume resuscitation vs diuresis as indicated.
• Treatment of underlying pathology.
• Early consideration of ECMO in refractory cases.

Bibliography

McLaren G, Brodie D, Lorusso R, Peek G, Thiagarajan R, Vercaemst
L, editors. Extracorporeal life support: the ELSO red book. 6th ed. Extracorporeal Life Support Organization; 2022.
Part XIII
Thoracic

Empyema

MargoCarlin andAsanthiRatnasekera
109
Way Question May BeAsked?
“A 60-year-old female presents with fevers and a history of pneumonia 2 weeks ago. A CXR is performed signicant for a pleural effusion.” Your primary focus to help diagnose empyema should include recent history of respiratory symp­toms, infections, or trauma. Risk factors for empyema include recent pneumonia, parapneumonic effusion, pleural effusion with signs of sepsis, bronchogenic carcinoma, esophageal rupture, retained foreign body, blunt or penetrat­ing chest trauma, and mediastinitis. Pleural effusion in the aforementioned scenario is an empyema until determined otherwise, and your workup should focus on getting the uid out timely.
How toAnswer?
History
• History of pneumonia or sick contacts
• Recent hospitalizations
• Recent unexplained weight loss
• Procedural history to include GI studies and bronchoscopy
• History of standard or completion pneumonectomy
• History of blunt or penetrating chest trauma
• Substance abuse (i.e., intravenous drug use, alcohol abuse)
Be sure to rule out other possibilities:
• Congestive heart failure
• Malignant effusion
• Retained hemothorax
• Sympathetic effusion from abdominal source
M. Carlin (*) · A. Ratnasekera Trauma, Emergency General Surgery, and Surgical Critical Care, Newark, DE, USA e-mail: margo.carlin@christianacare.org;
asanthi.ratnasekera@christianacare.org
Diagnostic Tests
• Lab abnormalities consistent with infected pleural space:
– Hypoalbuminemia (<30g/dL) – Hyponatremia (<130mmol/L) – Elevated CRP (>100mg/L)
• Chest XR
– Require 175mL to blunt costodiaphragmatic angle – Miss 10% of pleural effusions – Chronic empyema: rib space narrowing, contraction of
the thorax, mediastinal shift to affected side
• Chest ultrasound
– Suspicious for empyema:
Complex, septated collections Echogenic pleural effusions Anechoic effusions exudative in 27% Parietal thickening
• CT chest
– Follows suspicious CXR and chest US – Imaging ndings:
Parietal thickening Pleural enhancement “Split pleura sign” (thickening + enhancement of the pleural) High attenuation of extra pleural adipose tissue
• Diagnostic thoracentesis
– Indications: pleural effusion >1cm on CXR or >2cm
on CT
– Test sample within 1 h for pH, glucose, LDH, gram
stain, and culture
– Pleural uid consistent with empyema:
pH <7.20 Glucose <40 LDH >1000 IU/L Positive Gram stain Positive culture
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_109
369
370
M. Carlin and A. Ratnasekera

Treatment

Early diagnosis and treatment is critical as management pro­gresses from minimally invasive to maximally invasive if diagnosis is delayed.
Antibiotics
• Effusions <2–2.5cm may respond to antibiotics alone
• Community-acquired empyema – IV second- or third-generation cephalosporin + metro-
nidazole or
– IV aminopenicillin + B-lactamase inhibitor (ampicil-
lin/sulbactam)
• Hospital-acquired empyema – Include coverage for MRSA and pseudomonas (i.e.,
vancomycin, cefepime, metronidazole or vancomycin, piperacillin, and tazobactam)
• Duration of therapy: 2–6 weeks
Chest Tube Drainage Versus CT-Guided Catheter Placement
• Indications: – Frank pus on thoracentesis – Pleural uid with pH <7.2, glucose <40, LDH >1000
IU/L
– Early-stage empyema with minimal septations
• Drain should be ushed frequently to prevent occlusion.
• Follow-up CT should be performed to assess for persis-
tent collections; if noted, place additional drains or pro­ceed with surgical management.

Surgical Management

Goals of surgery are to obtain source control, evacuate infected uid, and re-expand the lung. If a patient is not pro­gressing with management with antibiotics and tube thora­costomy, alternative options should be entertained. VATS or open thoracotomy is indicated for failure of conservative management, radiographic evidence of multiple collections, or inability to completely evacuate a complex collection due to multiple septations or late-stage empyema.
Video-Assisted Thoracoscopy Surgery (VATS)
• First-line approach in patients able to tolerate single-lung
ventilation.
• Preoperative CT chest is helpful for operative planning to
guide safe port placement.
• Benets of VATS include less postoperative pain, reduced
length of stay, lower blood loss, and reduced overall complications.
• Intraoperative complications including damage to nearby
structures, uncontrolled hemorrhage, and inability to ven-
tilate prompt immediate conversion to open thoracotomy.
Open Thoracotomy and Decortication
• Consider early decortication with multiple loculations or rind >1cm.
• Consider as rst-line approach for patients with history of previous thoracic interventions.

Chronic Empyema

In chronic empyema, there is formation of granulation tissue around the lung from sustained inammation that results in a dense rind surrounding the lung parenchyma. This condition requires surgery for decortication and drainage of abscesses and will not respond to chest tube drainage alone.
Decortication
• Peeling brinous layer off the lung to permit debridement of infected tissue.
• Indications for lung resection: frankly necrotic tissue, frank abscess, symptoms of hemoptysis.
• Avoid extensive resection as the infected eld predisposes to bronchopleural stulas (BPF).
Tissue Flaps
• Help ll cavities with incomplete lung expansion after decortication
• Primary options for pedicled aps:
– Serratus anterior – Latissimus dorsi – Pectoralis major
• Options for aps when chest wall is not available (complex):
– Lower abdominal muscles – Omentum (may seed abdominal cavity upon entry)
Open Thoracic Window
• Can be considered for patients unable to tolerate decorti­cation and muscle aps or have a BPF.
• Procedure involves marsupialization of the infected tho­rax, resection of ribs, and frequent dressing changes.

Post-resectional Empyema

Infection of the thorax after standard or completion pneumo­nectomy is a potentially fatal condition and is most likely to occur concomitantly with a BPF.It is essential to identify the presence of a stula early in the presentation with exible bronchoscopy. Immediately place a chest tube for a patient presenting with BPF and respiratory distress, as tension
109 Empyema
371
pneumothorax from BPF can be rapidly fatal. After drainage, place the patient in the lateral decubitus position to promote draining of the affected cavity and to prevent spreading infection to the contralateral thorax. Following resuscitation and stabilization, the most commonly used procedure for management includes open pleural drainage, wet to dry dressings, and closure by secondary intention. If BPF is pres­ent at time of operative intervention, attempts should be made to close it primarily with reinforcement by viable mus­cle ap.

Common Curveballs

Some bacterial pleural space infections will result in elevated pH (i.e., those caused by Proteus).
Most common drain complications are occlusion and dis­lodgement. Prevent occlusion with frequent drain ushing (i.e., 20mL q6h). Dislodgement and malposition are better diagnosed on CXR than CT.
Fibrinolytics are not used routinely in management of empyema (although results of MIST2 trial showed improved drainage and reduced rates of progression to operative inter­vention, a large meta-analysis showed no statistically signi­cant benet).
Retained hemothorax in trauma patients can progress to empyema.

Clean Kills

• Failure to place a pleural drain after thoracentesis for
empyema
• Failure to escalate therapy for undrained pleural
collections
• Failure to perform follow-up CT scan to ensure adequate drainage after tube thoracostomy
• Not converting to open thoracotomy when VATS becomes unsafe
• Not obtaining timely source control with unresolving sepsis
• Not placing a chest tube for a post-resectional empyema presenting with BPF

Summary

Failure to respond to antibiotic therapy within a couple of days in the setting of parapneumonic effusion or infected pleural uid suggests progression to empyema. Aggressive management to obtain source control is cru­cial. Delayed evacuation of infected pleural uid signi­cantly increases mortality. Early empyema is amenable to VATS and should be considered early. Infectious dis­ease consultation should be considered for prolonged course of antibiotics and complicated infections.

Bibliography

Asensio J, Trunkey D.Current therapy of trauma and surgical critical
care. 2nd ed. Elsevier; 2016.
Shen KR, Bribriesco A, Crabtree T, Denlinger C, Eby J, Eiken P,
Jones DR, Keshavjee S, Maldonado F, Paul S, Kozower B. The American Association for Thoracic Surgery consensus guide­lines for the management of empyema. J Thorac Cardiovasc Surg. 2017;153(6):e129–46.
Wait MA, Beckles DL, Paul M, Hotze M, Dimaio MJ.Thoracoscopic
management of empyema thoracis. J Minim Access Surg. 2007;3(4):141–8. https://doi.org/10.4103/0972- 9941.38908.

Lung Nodule/Lung Cancer

SirivanSeng
110
Way Question May BeAsked
“A 57-year-old male presents to the clinic with an incidental 1cm solid pulmonary nodule at the right lower lobe that was found on a computed tomography (CT) scan of the abdomen after a motor vehicle collision. How would you proceed?”
How toAnswer?
History
• Symptoms – Cough – Shortness of breath – Weight loss – Recurrent pneumonia – Dysphonia – Hemoptysis – Neurological symptoms – Chest/bone pain – *Look for symptoms consistent with paraneoplastic
syndromes
• Past medical history – Chronic obstructive pulmonary disease (COPD) – Pulmonary brosis – Previous cancer (i.e., consider metastasis)
• Social history – Current or previous tobacco use – Second-hand smoke exposure – Occupational exposures (e.g., radon, asbestos, arsenic,
chromium, nickel, coal tar, iatrogenic radiation)
– Recent travel history
• Family history – Cancer
S. Seng (*) Department of Surgery, Northwestern Memorial Hospital, Chicago, IL, USA
Physical Examination
• Thorough lymph node basin examination (i.e., cervical, supraclavicular)
• Thoracic auscultation
• Abdominal exam
Diagnostic Tests
• Laboratory
– Complete blood count (CBC) – Complete metabolic panel (CMP)
• Imaging
– First: Acquire and compare previous imaging – Chest radiograph – CT of the chest (extend down to liver and adrenals)
Evaluate mass size and location (e.g., solid, subsolid, ground-glass, perissural, calcied, spiculated) Evaluate lymph nodes Evaluate for metastases
– Fludeoxyglucose-18 positron emission tomography
(FDG-PET)/CT
– *Obtain respective imaging if suspicious for
metastasis
• Screening guidelines
– Current or former smokers (i.e., quit within 15 years
with at least a 30-pack year smoking history) should obtain an annual low- dose CT chest (LDCT) starting from age 55 until age 74 (Table110.1)
Lung Cancer Diagnosis
• Nonsurgical biopsy
– Flexible bronchoscopy – Transbronchial biopsy – Transthoracic CT-guided needle biopsy – Electromagnetic navigation bronchoscopy
• Surgical biopsy
– Cervical mediastinoscopy (provides access to Levels
2, 4, and 7)
– Left anterior mediastinotomy, also known as
“Chamberlain procedure” (provides access to Levels 5 and 6)
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_110
373
374
Table 110.1 2017 Fleischner Society Guidelines for management of incidentally detected solid pulmonary nodules in adults (35+ years old)
<6mm 6–8mm >8mm
Single
Low risk No routine follow-up 6–12-month LDCT
*Consider 18–24- month LDCT
High risk 12-month LDCT (optional) 6–12-month LDCT, then 18–24-month LDCT 3-month LDCT or FDG-PET/CT or
Multiple
Low risk No routine follow-up 3–6-month LDCT
*Consider 18–24- month LDCT
High risk 12-month LDCT (optional) 3–6-month LDCT, then 18–24month LDCT 3–6-month LDCT, then 18–24-
LDCT low-dose CT chest
3-month LDCT or FDG-PET/CT or tissue sampling
tissue sampling
3–6-month LDCT, then 18–24­month LDCT
month LDCT
S. Seng
– Video-assisted thoracoscopy (provides access to
Levels 5, 6, 8, and 9)
– Thoracotomy
• Techniques to assist with biopsy – Fiduciary markers: metal coils, hook wires – Methylene blue dye – Radiotracer
Lung Cancer TNM Classication
• Tumor (T) – Tis: Carcinoma in situ – T1: ≤3cm, surrounded by lung or visceral pleura – T2: 3 to ≤5 cm, or involving main bronchus, visceral
pleura, or associated with atelectasis or pneumonitis
– T3: >5 to ≤7 cm, or invading parietal pleura, chest
wall, phrenic nerve, parietal pericardium, or separate nodule in the same lobe as primary
– T4: >7 cm, or invading diaphragm, mediastinum,
heart, great vessels, trachea, recurrent laryngeal nerve, esophagus, vertebral body, carina, separate nodule in lobe different from primary
• Node (N) – N1: Ipsilateral peribronchial and/or hilar lymph nodes
and intrapulmonary nodes
– N2: Ipsilateral mediastinal and/or subcarinal lymph
nodes
– N3: Contralateral mediastinal and/or hilar, scalene, or
supraclavicular
• Metastasis (M) – M1: Distant metastasis
Preoperative Planning
• ABG (Arterial blood gas)
• Pulmonary function tests (PFTs)
• Ventilation-perfusion (V/Q) scan
– Pneumonectomy
• Surgical techniques – Thoracotomy – Video-assisted thoracic surgery (VATS) – Robotic-assisted pulmonary resection
• Considerations – T3 and T4 tumors requiring en bloc resection with
negative margins
• Contraindications to surgery – N3 lesions – Malignant pleural effusion

Common Curveballs

• No lesion will be benign
• Lesion can be a metastasis
• Tumor may be unresectable – Pancoast tumor with Horner’s syndrome – Positive cytology from pleural effusion – Tracheoesophageal stula – Nerve encasement
• Can present as hemoptysis
• Can present as pleural effusion
• Can present as lung abscess
• Paraneoplastic syndrome – Adrenocorticotropic hormone (ACTH) – Parathyroid hormone-related protein (PTHrP) – Antidiuretic hormone (ADH)
• Postoperative complications – Bronchopleural stula – Atrial brillation – Hemoptysis – Hemorrhage – Air embolus – Mediastinal shift on post-operative imaging

Treatment

• Resection – Wedge resection – Lobectomy

Clean Kills

• Not checking for prior imaging
• Not performing a bronchoscopy