# Clinical Cases: Surgical Decision-Making

## Case 1: Emergency Surgery in a High-Risk Patient

### Clinical Image
![CT scan showing acute small bowel obstruction with transition point](case_01_image.jpg)
*Source: [Wikimedia Commons - Bowel Obstruction CT](https://commons.wikimedia.org/wiki/Category:CT_scans_of_the_abdomen) - CC BY-SA 4.0*

### Case Presentation
An 85-year-old woman with dementia, heart failure (EF 25%), and COPD presents with 2 days of abdominal pain, distension, and vomiting. She lives in a nursing home and is non-verbal at baseline but now appears more distressed than usual. CT shows a complete small bowel obstruction with a transition point in the right lower quadrant and a closed-loop configuration concerning for volvulus. There is no free air, but there is bowel wall thickening at the transition point suggesting ischemia. The surgical team calculates her ACS NSQIP risk: estimated mortality 22%, serious morbidity 45%. Her frailty index is high. The attending surgeon meets with the patient's daughter (healthcare proxy) for a shared decision-making discussion. She explains: "Your mother has a bowel blockage that appears to be twisting on itself. Without surgery, the bowel will die and she will not survive. With surgery, her chances of surviving are about 75-80%, but she faces significant risks of complications and may not return to her previous baseline." The daughter asks what her mother would have wanted. The team reviews her prior statements and advance directive, which states she would not want "heroic measures" but does not address surgery. After discussion, the daughter decides to proceed with surgery with the understanding that if intraoperative findings are worse than expected, the surgeons will limit the operation rather than pursue extensive resection. The patient undergoes exploratory laparotomy, and a band causing closed-loop obstruction is lysed with viable bowel. She recovers slowly but returns to her nursing home baseline in 3 weeks.

### Key Learning Points
- Surgical decision-making in frail, elderly patients requires explicit risk-benefit analysis using validated tools (ACS NSQIP, frailty indices) and honest communication with surrogates
- Emergency surgical indications (perforation, ischemia, strangulation, hemorrhage) generally favor operative intervention even in high-risk patients, though goals-of-care discussions should occur
- Shared decision-making explores patient values and what the patient would have wanted, not just what family members want
- Damage control principles may apply: limit the operation to what is necessary if the patient is unstable or findings are dire

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## Case 2: Operative Versus Non-Operative Management

### Clinical Image
![CT scan showing uncomplicated sigmoid diverticulitis](case_02_image.jpg)
*Source: [Wikimedia Commons - Diverticulitis CT](https://commons.wikimedia.org/wiki/Category:Diverticulosis) - CC BY-SA 3.0*

### Case Presentation
A 52-year-old otherwise healthy man presents with 3 days of left lower quadrant pain, low-grade fever, and elevated WBC to 14,000. CT shows sigmoid diverticulitis with a 3 cm localized abscess (Hinchey Stage II). He is hemodynamically stable with no peritoneal signs. The surgery team discusses management options. Option 1: Emergent surgery (sigmoid resection with possible diverting colostomy) carries operative risks and potential for permanent stoma. Option 2: Non-operative management with IV antibiotics and percutaneous CT-guided drainage of the abscess allows the inflammation to resolve; elective sigmoid resection can be considered later if recurrence occurs. Given his stable condition, contained infection, and accessibility of the abscess to percutaneous drainage, the team recommends non-operative management. Interventional radiology places a drain, and 50 mL of purulent fluid is evacuated. He receives IV piperacillin-tazobactam. By day 3, his pain and fever have resolved, WBC normalizes. The drain is removed on day 5 when output is less than 10 mL/day. He is discharged on day 6 with oral antibiotics for 7 more days. At 6-week follow-up, he is well. After discussing recurrence risk (approximately 20-30% for complicated diverticulitis), he elects to proceed with elective laparoscopic sigmoid resection with primary anastomosis 8 weeks later, which is completed uneventfully.

### Key Learning Points
- Not all surgical conditions require emergency surgery; stable, contained infections may be managed with antibiotics and drainage, with surgery reserved for failure of conservative management or elective resection later
- Hinchey classification guides diverticulitis management: Stage I (pericolic abscess), Stage II (pelvic abscess amenable to drainage), Stage III (purulent peritonitis - requires surgery), Stage IV (fecal peritonitis - requires surgery)
- Percutaneous abscess drainage allows definitive surgery to be performed electively, often with primary anastomosis rather than colostomy
- Decision to operate electively after complicated diverticulitis considers recurrence risk, patient comorbidities, and patient preference

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## Case 3: Intraoperative Decision-Making and Discovering Unexpected Findings

### Clinical Image
![Operative field showing unexpected intraoperative findings](case_03_image.jpg)
*Source: [Wikimedia Commons - Surgical Procedure](https://commons.wikimedia.org/wiki/Category:Surgical_operations) - CC BY-SA 4.0*

### Case Presentation
A 70-year-old man undergoes planned right hemicolectomy for a cecal cancer staged as T3N0 on preoperative imaging. The operation begins with laparoscopic approach. During initial exploration, the surgeon notes multiple small nodules on the peritoneal surface of the liver and diaphragm that were not seen on preoperative CT. Frozen section biopsy of one nodule confirms metastatic adenocarcinoma. The surgeon pauses to consider the decision: the operation was planned as curative, but the finding of peritoneal carcinomatosis changes the situation to Stage IV disease, which is not curable by surgery alone. The attending discusses options with the assistant: (1) proceed with resection for potential palliation (preventing future obstruction/bleeding) or (2) abort the curative resection and pursue systemic therapy. The primary tumor is not causing obstruction currently. The attending decides to close, biopsy several lesions for complete staging, and defer further surgery until the patient and oncology can discuss systemic therapy options. Post-operatively, the surgeon has an honest conversation with the patient and family: "We found the cancer has spread to the lining of your abdomen in a way we could not see on the scans. This changes the situation significantly. We took biopsies and closed to allow you to recover. We will need to discuss with oncology what the best next steps are." The patient ultimately receives systemic chemotherapy, and the primary tumor is addressed later when he develops partial obstruction.

### Key Learning Points
- Intraoperative findings may change the operative plan; surgeons must be prepared to adapt when findings differ from preoperative imaging
- When curative intent is no longer possible, consider whether the planned operation still provides palliative benefit or if aborting and pursuing alternative treatment is better
- Honest communication with patients about unexpected findings is essential; explain what was found, what was done, and what the revised plan is
- Multidisciplinary input (tumor board) often guides management after unexpected staging findings; systemic therapy may take precedence over surgery for metastatic disease