Laparoscopic Upper GI Surgery — MCQs
Second swallowing in barium meal studies is found in-
Abbreviated laparotomy done for:
What is the investigation of choice in peptic ulcer perforation?
What is the most appropriate surgical management for a patient with achalasia who has tried nonoperative therapies, including lifestyle modifications, calcium channel blockers, botulin toxin injections, and endoscopic pneumatic dilatation, but has not experienced symptom relief?
A patient who underwent sleeve gastrectomy on the 3rd postoperative day complains of fever. On examination, the patient is febrile, with a pulse rate of 110 beats per minute. The complete blood count shows leucocytosis. What is the next best step in managing this patient?
The technique of laparoscopic cholecystectomy was first performed by whom?
The Chief of laparoscopic surgery asked his assistant to give him a laparoscopic port which has absolutely no chance of "capacitance coupling" during laparoscopic surgery. Which port should the assistant give to the Chief?
Which of the following is NOT a CONTRAINDICATION for laparoscopic surgery:
Structure not forming boundaries of the "Triangle of doom" seen during laparoscopic inguinal hernia surgery dissection is:
Which of the following about Minimal Access Surgery are correct? I. Decreased intraoperative heat loss II. Improved visualization III. Increased chances of herniation IV. Improved mobility Select the answer using the code given below :
Laparoscopic Upper GI Surgery Indian Medical PG Practice Questions and MCQs
Question 1: Second swallowing in barium meal studies is found in-
- A. Scleroderma
- B. Reflux esophagitis
- C. Pharyngeal pouch (Correct Answer)
- D. Achalasia cardia
Explanation: ***Pharyngeal pouch*** - A pharyngeal pouch, specifically a **Zenker's diverticulum**, can lead to food or barium pooling within the pouch. - This pooling can cause a sensation of retained material, prompting a **second swallow** to clear the pharynx and esophagus. *Scleroderma* - Leads to **esophageal dysmotility** due to smooth muscle atrophy and fibrosis, primarily affecting the lower two-thirds of the esophagus. - This manifests as difficulty moving food down the esophagus, but not typically as the need for a second swallow to clear a pouch. *Reflux esophagitis* - Characterized by **inflammation of the esophagus** due to gastric acid reflux. - Symptoms include heartburn and dysphagia, but it does not cause the pooling of barium requiring a second swallow as seen with a pharyngeal pouch. *Achalasia cardia* - Involves the **failure of the lower esophageal sphincter to relax** and loss of peristalsis in the esophageal body. - This results in significant delayed emptying and a "bird's beak" appearance on barium swallow, but not the specific finding of a second swallow to clear a localized pouch.
Question 2: Abbreviated laparotomy done for:
- A. Hemodynamically stable patients with minor trauma
- B. Damage control in hemodynamically unstable trauma patients (Correct Answer)
- C. Elective abdominal surgeries
- D. Early wound healing promotion
Explanation: ***Damage control in hemodynamically unstable trauma patients*** - **Abbreviated laparotomy** is a key component of **damage control surgery**, primarily indicated for hemodynamically unstable trauma patients. - The goal is to rapidly control life-threatening issues like hemorrhage and contamination, then temporarily close the abdomen for physiologic stabilization before definitive repair. *Hemodynamically stable patients with minor trauma* - These patients typically do not require prompt surgical intervention; their injuries can often be managed non-operatively or with standard surgical techniques. - An abbreviated laparotomy is an aggressive approach reserved for severe, life-threatening scenarios, not minor trauma in stable patients. *Elective abdominal surgeries* - Elective surgeries are planned procedures performed on stable patients with no immediate life-threatening conditions. - They allow for complete surgical repair in a single setting, which is the opposite of the staged approach of an abbreviated laparotomy. *Early wound healing promotion* - The focus of an abbreviated laparotomy is on resuscitation and source control, not primarily on wound healing. - The initial closure is temporary, often leaving the wound open, which is not conducive to early, primary wound healing.
Question 3: What is the investigation of choice in peptic ulcer perforation?
- A. X-Ray abdomen (Correct Answer)
- B. Paracentesis
- C. CT scan
- D. USG
Explanation: ***X-Ray abdomen*** - An **X-ray of the abdomen in erect position** (or an **erect chest X-ray**) is the initial and often diagnostic investigation for a perforated peptic ulcer due to the presence of **free air under the diaphragm**. - The visualization of **subdiaphragmatic free air** (pneumoperitoneum) indicates a breach in the gastrointestinal tract. - **Erect positioning** is essential as it allows gas to rise and accumulate under the diaphragm, making it visible on the radiograph. *USG* - **Ultrasound (USG)** can sometimes detect free fluid or signs of perforation, but it is less sensitive and specific for detecting free air when compared to a plain X-ray. - Its utility is more in detecting **intra-abdominal fluid collections** or assessing solid organs, rather than pneumoperitoneum. *Paracentesis* - **Paracentesis** involves aspirating fluid from the peritoneal cavity for analysis and is primarily used to diagnose **ascites** or **spontaneous bacterial peritonitis**. - It is not the initial diagnostic test for peptic ulcer perforation, nor does it directly visualize free air. *CT scan* - A **CT scan** is highly sensitive and can detect even small amounts of **free air** or fluid, making it the most definitive imaging study for perforation. - However, it is typically performed if the diagnosis is ambiguous after a plain X-ray or when surgical planning requires more detailed anatomical information, not as the first-line investigation due to higher cost and radiation exposure.
Question 4: What is the most appropriate surgical management for a patient with achalasia who has tried nonoperative therapies, including lifestyle modifications, calcium channel blockers, botulin toxin injections, and endoscopic pneumatic dilatation, but has not experienced symptom relief?
- A. Repeat pneumatic dilation with higher pressures
- B. Esophagectomy
- C. Surgical esophagomyotomy proximal to the LES
- D. Modified Heller myotomy and partial fundoplication (Correct Answer)
Explanation: ***Modified Heller myotomy and partial fundoplication*** - A **Heller myotomy** involves incising the muscle fibers of the lower esophageal sphincter (LES) to relieve obstruction, which is the definitive treatment for achalasia. - A **partial fundoplication** is added to prevent **postoperative gastroesophageal reflux disease (GERD)**, a common complication of myotomy. *Esophagectomy* - **Esophagectomy** is a highly invasive procedure involving removal of the esophagus, reserved for end-stage achalasia with **megaesophagus** or **recurrent aspiration**, not typically first-line surgical management. - It carries significant morbidity and mortality risks, making it an option only as a **last resort** when other treatments have failed and the esophagus is severely diseased. *Surgical esophagomyotomy proximal to the LES* - A myotomy specifically targets the **hypertonic LES** to relieve dysphagia. Performing it significantly proximal to the LES would not address the primary pathology. - While myotomy is the correct approach, its efficacy depends on precise dissection of the muscle fibers at the **gastroesophageal junction** where the LES is located. *Repeat pneumatic dilation with higher pressures* - Although **pneumatic dilation** is an effective *nonoperative* treatment, the patient has already undergone it without relief, indicating a **refractory case**. - Repeating the procedure with higher pressures increases the risk of **esophageal perforation** without necessarily improving long-term outcomes in a patient who has already failed multiple prior treatments.
Question 5: A patient who underwent sleeve gastrectomy on the 3rd postoperative day complains of fever. On examination, the patient is febrile, with a pulse rate of 110 beats per minute. The complete blood count shows leucocytosis. What is the next best step in managing this patient?
- A. Re-exploration
- B. Broad spectrum antibiotics
- C. Abdominal USG to locate the septic focus
- D. CECT abdomen (Correct Answer)
Explanation: ***CECT abdomen*** - A **computed tomography (CT) scan** with contrast is the most sensitive and specific imaging modality to detect potential complications like a **leak, abscess**, or other **intra-abdominal pathology** following sleeve gastrectomy. - Given the patient's fever, tachycardia, and leukocytosis on the 3rd postoperative day, there is a strong suspicion of **sepsis** requiring prompt investigation to identify the source. *Broad spectrum antibiotics* - While antibiotics are important in managing potential infection, they are not the *next best step* without identifying the **source of infection**, as this patient is critically ill. - Starting antibiotics empirically without imaging could delay diagnosis of a surgically treatable complication like a **leak** or **abscess**. *Abdominal USG to locate the septic focus* - Abdominal ultrasound has **limited sensitivity** for detecting small leaks or deep-seated collections, especially in obese patients or with overlying bowel gas. - A **CT scan** provides superior anatomical detail and penetration compared to ultrasound for evaluating the surgical site. *Re-exploration* - **Re-exploration is a surgical intervention** and should only be considered after a definitive diagnosis, preferably guided by imaging like a **CECT abdomen**, indicating a need for surgical repair or drainage. - Performing re-exploration without imaging guidance could be an unnecessary and potentially harmful procedure if the diagnosis is incorrect or manageable non-surgically.
Question 6: The technique of laparoscopic cholecystectomy was first performed by whom?
- A. Erich Muhe (Correct Answer)
- B. Eddie Joe Reddick
- C. Philippe Mouret
- D. Kurt Semm
Explanation: ***Erich Muhe*** - **Erich Muhe**, a German surgeon, performed the first laparoscopic cholecystectomy on September 12, 1985. - He is widely credited with pioneering this minimally invasive surgical technique for gallbladder removal. - This groundbreaking procedure marked the beginning of the laparoscopic revolution in surgery. *Philippe Mouret* - **Philippe Mouret** performed laparoscopic cholecystectomy in France in 1987, independently developing the technique. - While significant in advancing the procedure in Europe, his work followed Muhe's initial breakthrough. *Eddie Joe Reddick* - **Eddie Joe Reddick** was an American surgeon who, along with Douglas Olsen, was instrumental in popularizing and standardizing laparoscopic cholecystectomy in the United States in the late 1980s. - While not the first to perform the procedure, he played a crucial role in its widespread adoption and refinement. - His contributions were significant but came after Muhe's pioneering work. *Kurt Semm* - **Kurt Semm** was a German gynecologist who significantly advanced laparoscopic surgery in the 1980s, particularly in gynecology. - He developed many laparoscopic instruments and techniques, including the automatic insufflator. - Although a pioneer in laparoscopy, he did not perform the first laparoscopic cholecystectomy.
Question 7: The Chief of laparoscopic surgery asked his assistant to give him a laparoscopic port which has absolutely no chance of "capacitance coupling" during laparoscopic surgery. Which port should the assistant give to the Chief?
- A. Metal port with plastic cuff
- B. Complete plastic port (Correct Answer)
- C. Metal laparoscopic port
- D. Partial plastic port
Explanation: **Complete plastic port** - A **complete plastic port** is an **electrical insulator** and thus completely prevents the phenomenon of **capacitance coupling** during laparoscopic surgery. - This is the safest option when electrosurgery is used, as it eliminates the risk of inadvertent energy transfer to surrounding tissues through the trocar. *Metal port with plastic cuff* - While a plastic cuff might offer some insulation, the presence of a **metal outer cannula** still allows for the possibility of charge accumulation and subsequent **capacitance coupling**. - The plastic cuff alone is insufficient to prevent the capacitance effect from the metal shaft, as the internal metal may still induce a charge on nearby conductive objects. *Metal laparoscopic port* - A **metal laparoscopic port** is a **conductor** and is highly susceptible to **capacitance coupling**, transferring stray electrical currents to unintended tissues. - The direct contact of conductive metal with the abdominal wall can create a pathway for current leakage, increasing the risk of **thermal injury**. *Partial plastic port* - Similar to a metal port with a plastic cuff, a **partial plastic port** would still have exposed metal components that can accumulate charge and lead to **capacitance coupling**. - Any exposed metal section can act as an electrode, enabling the unintentional delivery of electrical energy to non-target tissues.
Question 8: Which of the following is NOT a CONTRAINDICATION for laparoscopic surgery:
- A. Severe COPD
- B. Bowel herniation
- C. Endometriosis (Correct Answer)
- D. Severe cardiac compromise
Explanation: ***Endometriosis*** - **Endometriosis** is a *common indication* for laparoscopic surgery, as laparoscopy allows for both diagnosis and treatment (e.g., excision or ablation of endometrial implants). - It is *not* a contraindication; in fact, laparoscopy is the **gold standard** for diagnosing and managing endometriosis due to its minimally invasive nature and excellent visualization. *Severe COPD* - **Severe COPD** is a significant *contraindication* because pneumoperitoneum increases intra-thoracic pressure and elevates the diaphragm, reducing functional residual capacity. - This can cause *hypercarbia*, *hypoxemia*, and respiratory compromise in patients with already limited pulmonary reserve, making general anesthesia and laparoscopy high-risk. *Bowel herniation* - **Incarcerated or strangulated bowel herniation** is generally a *relative contraindication* due to the risk of intestinal injury during trocar insertion or manipulation. - The presence of *adhesions* and compromised bowel can make laparoscopic access challenging, though experienced surgeons may still attempt laparoscopic repair in selected cases. *Severe cardiac compromise* - **Severe cardiac compromise** is a significant *contraindication* because pneumoperitoneum causes increased intra-thoracic pressure, reduced venous return, and increased systemic vascular resistance. - This can lead to decreased *cardiac output*, arrhythmias, and hemodynamic instability, posing substantial risk to patients with severe cardiovascular disease.
Question 9: Structure not forming boundaries of the "Triangle of doom" seen during laparoscopic inguinal hernia surgery dissection is:
- A. Spermatic cord vessels
- B. Vas deferens
- C. Peritoneum
- D. Inferior epigastric artery (Correct Answer)
Explanation: ***Inferior epigastric artery*** - The **inferior epigastric artery** does NOT form a boundary of the **"Triangle of Doom"** during laparoscopic inguinal hernia repair. - Instead, it forms the **lateral boundary of Hesselbach's triangle** and the **medial boundary of the "Triangle of Pain"** (another important anatomical landmark containing the lateral femoral cutaneous nerve and genitofemoral nerve). - The Triangle of Doom is bounded by the **vas deferens medially**, the **spermatic vessels (gonadal vessels) laterally**, and the **peritoneal reflection inferiorly**. *Spermatic cord vessels* - The **spermatic vessels (testicular artery and pampiniform plexus)** form the **lateral boundary** of the **"Triangle of Doom."** - This triangle contains the **external iliac artery and vein**, which pose significant risk of major hemorrhage if injured. - Careful identification of these vessels is crucial to avoid devastating vascular complications. *Vas deferens* - The **vas deferens** forms the **medial boundary** of the **"Triangle of Doom."** - This structure runs within the spermatic cord and must be carefully preserved to prevent male infertility. - Injury to the vas deferens during dissection can result in permanent reproductive consequences. *Peritoneum* - The **peritoneum (peritoneal reflection)** forms the **base/inferior boundary** of the **"Triangle of Doom."** - This serous membrane provides the anatomical floor of the triangle during laparoscopic visualization. - Understanding the peritoneal boundaries helps surgeons safely navigate this high-risk anatomical area.
Question 10: Which of the following about Minimal Access Surgery are correct? I. Decreased intraoperative heat loss II. Improved visualization III. Increased chances of herniation IV. Improved mobility Select the answer using the code given below :
- A. I, III and IV
- B. I, II and III
- C. I, II and IV (Correct Answer)
- D. II, III and IV
Explanation: ***I, II and IV (Correct Answer)*** **Statement I - Decreased intraoperative heat loss:** Correct. MAS involves smaller incisions with reduced exposure of internal organs to the operating room environment, resulting in significantly less heat loss compared to open surgery. **Statement II - Improved visualization:** Correct. Endoscopic cameras provide magnified, high-definition, and well-illuminated views of the surgical field, offering superior visualization compared to the naked eye in open procedures. **Statement IV - Improved mobility:** Correct. Patients experience faster post-operative recovery with less pain and earlier return to normal activities due to minimal tissue trauma from smaller incisions. **Statement III - Increased chances of herniation:** This statement is **INCORRECT** and is the key reason why options containing it are wrong. MAS typically results in *decreased* risk of incisional hernias due to smaller access points. While trocar-site hernias can occur, they are less common than the large incisional hernias seen in open surgery when proper fascial closure techniques are employed. *I, III and IV* - Incorrect because Statement III (increased herniation) is false. MAS reduces, not increases, herniation risk. *I, II and III* - Incorrect because Statement III (increased herniation) is false. Properly performed MAS has lower incisional hernia rates than open surgery. *II, III and IV* - Incorrect because Statement III (increased herniation) is false. Smaller incisions in MAS lead to reduced hernia formation compared to traditional open approaches.
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