Gastrointestinal Surgery Practice Questions

Q: Heineke‐Mikulicz operation is done for:

Pyloric stenosis. ***Pyloric stenosis*** - The Heineke-Mikulicz pyloroplasty is a surgical procedure specifically designed to relieve obstruction in cases of **pyloric stenosis**. - This operation involves a **longitudinal incision** of the pylorus followed by a **transverse closure**, effectively widening the pyloric channel. *Ureteric stricture* - Ureteric strictures are typically treated with procedures like **ureteroplasty** (e.g., using a Foley Y-V plasty for ureteropelvic junction obstruction) or ureteral stenting, not the Heineke-Mikulicz operation. - The Heineke-Mikulicz technique is not anatomically or functionally suitable for the repair of a ureter, which is a muscular tube with distinct functions. *Urethral stricture* - Urethral strictures are managed by **urethroplasty**, which includes various techniques such as excision and primary anastomosis, or augmentation using grafts (e.g., buccal mucosa). - The Heineke-Mikulicz technique is not employed for the treatment of urethral strictures, which have different anatomical and surgical considerations. *Stricture common bile duct* - Common bile duct strictures are usually treated with procedures like **choledochoduodenostomy** or **choledochojejunostomy** (bile duct bypass) or endoscopic techniques like balloon dilation and stent placement. - The Heineke-Mikulicz operation is a pyloroplasty that is not applicable to the common bile duct, given its different anatomical location and physiological role.

Q: Which of the following layers is most important in intestinal anastomosis?

Submucosa. ***Submucosa*** - The **submucosa** is the most crucial layer for anastomosis strength due to its high concentration of **collagen** and **elastin fibers**, providing tensile strength to the repair. - Sutures placed in the submucosa hold the anastomotic ends together effectively, facilitating **healing** and preventing **dehiscence**. *Muscularis propria* - The **muscularis propria** provides contractility for peristalsis but contributes very little to the **tensile strength** of an anastomosis. - Although it needs to be approximated for proper function, it is not the primary load-bearing layer during healing. *Serosa* - The **serosa** is the outermost protective layer, reducing friction and promoting smooth movement of the intestines. - While its approximation is desirable for a good seal, it offers minimal **tensile strength** for holding the anastomosis together. *Mucosa* - The **mucosa** is the innermost layer responsible for absorption and protection but lacks the **collagenous strength** required for surgical anastomotic integrity. - Sutures placed solely in the mucosa would be prone to tearing, leading to **anastomotic leakage**.

Q: Sengstaken-Blakemore tube is used to control bleeding in:

Bleeding varices. ***Bleeding varices*** - The **Sengstaken-Blakemore tube** is specifically designed with gastric and esophageal balloons to apply direct pressure and tamponade actively bleeding **esophageal** or **gastric varices**. - This device is a temporary measure used to control life-threatening hemorrhage from varices secondary to **portal hypertension** when endoscopic therapies are unsuccessful or unavailable. *Duodenal ulcer bleed* - Bleeding from a duodenal ulcer is typically managed with **endoscopic intervention** (e.g., clipping, injection, cautery) or **surgical repair**. - A Sengstaken-Blakemore tube is not suitable for controlling duodenal bleeds as it cannot reach or apply pressure to the bleeding site in the **duodenum**. *Renal trauma* - Renal trauma causes bleeding within or around the **kidney**, which is usually managed conservatively, with embolization of bleeding vessels, or surgically (e.g., nephrectomy). - The Sengstaken-Blakemore tube is an **upper gastrointestinal device** and has no role in managing bleeding from renal injuries. *Splenic injury in portal hypertension* - Splenic injury with bleeding in the context of portal hypertension typically requires **splenectomy** or **splenic artery embolization**. - While portal hypertension can be a contributing factor, the tube is not designed to control bleeding originating from a **damaged spleen**.

Q: Mallory-Weiss tear causing haematemesis is seen over:

Gastroesophageal junction. ***Gastroesophageal junction*** - Mallory-Weiss tears are **linear mucosal lacerations** typically located at the **gastroesophageal junction**, where the esophagus meets the stomach. - These tears are caused by sudden increases in **intra-abdominal pressure**, often due to forceful retching or vomiting, leading to bleeding. *Oesophagus* - While located close, Mallory-Weiss tears are specifically at the **junction**, not generally throughout the esophageal body. - **Esophageal varices** are a more common cause of hematemesis originating from the esophagus itself, distinct from Mallory-Weiss tears. *Anterior wall of stomach* - Tears in the anterior wall of the stomach are less common and typically associated with other conditions like **ulcers** or **trauma**, not the characteristic forceful vomiting seen in Mallory-Weiss syndrome. - The unique anatomical stress at the **gastroesophageal junction** during retching makes it the preferred site for Mallory-Weiss lacerations. *Fundus of stomach* - Tears in the fundus are rare in the context of Mallory-Weiss syndrome; the fundus is usually affected by other conditions such as **gastric ulcers** or **gastric varices**. - The biomechanical forces that cause Mallory-Weiss tears are concentrated where the **esophageal and gastric mucosa meet**, not primarily in the fundus.

Q: Paralytic ileus is a type of:

Adynamic obstruction. ***Adynamic obstruction*** - **Paralytic ileus** is characterized by the absence of normal peristaltic movement of the bowel, leading to a functional or **adynamic obstruction** without a physical blockage. - This condition often results from factors like **abdominal surgery**, electrolyte imbalances, or certain medications, which disrupt neural control over intestinal motility. *Inflammatory obstruction* - An **inflammatory obstruction** implies a physical blockage or narrowing of the bowel lumen due to inflammation, such as in **Crohn's disease** or diverticulitis. - While inflammation can contribute to ileus, the primary mechanism of paralytic ileus is a lack of motility, not a physical inflammatory mass blocking the lumen. *Drug-induced obstruction* - While certain drugs, such as **opioids** or **anticholinergics**, can *cause* paralytic ileus by reducing gut motility, the term "drug-induced obstruction" is typically used when the drug directly creates a physical obstruction. - In the context of ileus, drugs induce a *functional* impairment rather than a physical **luminal blockage**. *Dynamic obstruction* - **Dynamic obstruction** refers to a *physical blockage* of the bowel, such as a **volvulus**, **intussusception**, or an **hernia**, where the bowel is actively trying to overcome the obstruction (hence "dynamic"). - In contrast, paralytic ileus involves a *lack* of active bowel movement, classifying it as an adynamic, rather than dynamic, obstruction.

Q: Which one of the following is NOT a surgical modality for management of femoral hernia?

The canal ring narrowing operation (Lytle’s). ***The canal ring narrowing operation (Lytle’s)*** - The **Lytle's operation** is a technique primarily used for the repair of **inguinal hernias**, specifically to reinforce the posterior wall of the inguinal canal, not for femoral hernias. - It involves repairing the **transversalis fascia** and strengthening the deep inguinal ring area. *Lotheissen's (Inguinal) operation* - This approach involves reducing the **femoral hernia sac** from above and repairing the defect through an **inguinal incision**. - It allows for exploration of the **inguinal canal** and is often used in cases of difficulty reducing the hernia or when a concomitant inguinal hernia is suspected. *The low approach (Lockwood)* - The **Lockwood operation** involves approaching the femoral hernia directly from **below the inguinal ligament** through a groin crease incision. - This method is straightforward for simple, uncomplicated femoral hernias. *The high approach (Mc Evedy)* - The **McEvedy approach** involves a **vertical incision** made above the inguinal ligament, providing excellent access to the **preperitoneal space** and the femoral canal. - This approach is particularly useful for **strangulated femoral hernias** as it allows for better visualization of compromised bowel and wider repair of the defect.

Q: Gastric conduit after oesophageal resection is based upon:

Right Gastroepiploic artery. ***Right Gastroepiploic artery*** - The **right gastroepiploic artery** is the primary arterial supply preserved when fashioning a gastric conduit for esophageal replacement. - This artery provides the main blood supply to the **greater curvature of the stomach**, which forms the basis of the conduit, ensuring its viability. *Short gastric vessels and Vasa brevia* - The **short gastric vessels** are typically ligated and divided during gastric conduit creation to mobilize the stomach for upward transposition. - These vessels supply the fundus and upper part of the greater curvature, which are often either resected or lose their primary blood supply, making them unsuitable as the sole basis for the conduit. *Left gastric artery* - The **left gastric artery** is usually ligated during oesophageal resection to facilitate gastric mobilization and conduit creation. - It supplies the lesser curvature and upper part of the stomach, but its division is necessary to free the stomach for transposition into the chest or neck. *Right gastric artery* - The **right gastric artery** supplies the lesser curvature of the stomach and is often ligated or preserved with care, but it is not the primary vessel relied upon for the blood supply of the gastric conduit. - Its contribution to the overall conduit's blood supply is secondary to the robust flow from the right gastroepiploic artery.

Q: A 45 year old female patient presents with a painless firm abdominal swelling of size 10 x 8 cm near the umbilicus. The swelling is reducible and shows no fixation to deeper structures. The most probable clinical diagnosis in this patient is

Umbilical hernia. ***Umbilical hernia*** - An **umbilical hernia** presents as a swelling near the umbilicus, is often **painless**, and tends to be **reducible**, especially in adults where it can be acquired. - The patient's age and the location and characteristics of the swelling (painless, firm, reducible, unfixed near the umbilicus) are highly consistent with an umbilical hernia, which commonly affects middle-aged women. *Incisional hernia* - An **incisional hernia** develops at the site of a previous surgical incision, which is not mentioned in the patient's history. - While it can be reducible, its location near the umbilicus without a history of abdominal surgery makes it less likely than an umbilical hernia. *Inguinal hernia* - An **inguinal hernia** occurs in the **groin region**, above the inguinal ligament, and not typically near the umbilicus. - While also often **reducible**, its anatomical location differentiates it from the described swelling. *Femoral hernia* - A **femoral hernia** presents as a swelling in the **upper thigh**, inferior to the inguinal ligament, and is more common in women. - The described swelling's location near the umbilicus rules out a femoral hernia.

Q: A 35 year old male patient with enteric fever presents to the emergency with sudden onset of generalised abdominal pain, abdominal distension, nausea, vomiting and constipation for last 48 hours. On examination, patient is dehydrated with PR = 110/min and BP = 100/60 mm Hg. There is generalised tenderness, rebound tenderness present and board like rigidity on per abdomen examination. The most likely complication of enteric fever in this patient is

Small bowel perforation. ***Small bowel perforation*** - The sudden onset of **generalised abdominal pain**, **distension**, **rebound tenderness**, and **board-like rigidity** in a patient with enteric fever strongly indicate **peritoneal irritation** due to perforation. - **Enteric fever** (typhoid) commonly causes **Peyer's patch hyperplasia and necrosis**, leading to full-thickness bowel wall damage and perforation, typically in the **ileum**. *Cholecystitis* - While cholecystitis can occur with enteric fever, it usually presents with **right upper quadrant pain**, **fever**, and **leukocytosis**, not generalized abdominal pain or peritoneal signs. - It does not typically cause **board-like rigidity** or signs of **perforation**. *Small bowel enteritis* - Small bowel enteritis causes **crampy abdominal pain**, **diarrhea**, and **vomiting**, but usually without the severe peritoneal signs like generalized tenderness and board-like rigidity. - It does not typically lead to systemic signs of shock and severe peritonitis as seen in this patient. *Small bowel obstruction* - Small bowel obstruction presents with **abdominal pain**, **distension**, **vomiting**, and **constipation**, but usually with **hyperactive bowel sounds** initially, progressing to absent. - The presence of **rebound tenderness** and **board-like rigidity** points more towards peritonitis from perforation rather than uncomplicated obstruction.

Q: Which of the following statements with regard to Enteric perforation are correct? 1. Salmonella typhi is the causative organism for Enteric fever 2. Enteric perforation characteristically occurs during the third week of illness 3. Typhoid ulcers are placed transversely to the long axis of the gut 4. Terminal ileum is the most common site for enteric perforation

1, 2 and 4. ***1, 2 and 4*** * **Salmonella typhi** is indeed the causative organism for **enteric fever**, often known as typhoid fever. * **Enteric perforation** characteristically occurs during the **third week of illness** due to progressive ulceration of **Peyer's patches** [1]. * The **terminal ileum** is the **most common site** for enteric perforation because it has the highest concentration of **Peyer's patches**, which are target sites for Salmonella typhi [1]. *2, 3 and 4* * While enteric perforation typically occurs in the third week and the terminal ileum is the most common site, the statement about **typhoid ulcers** being placed transversely is incorrect. * **Typhoid ulcers** are characteristically oriented **longitudinally** along the long axis of the gut, following the orientation of the underlying Peyer's patches [1]. *1, 3 and 4* * Although Salmonella typhi is the causative organism and the terminal ileum is the most common site, the statement about **typhoid ulcers** being placed **transversely** is incorrect. * Perforation typically occurs during the **third week of illness**, which is an important clinical detail missed in this option [1]. *1, 2 and 3* * **Salmonella typhi** is the causative organism for enteric fever, and perforation does occur during the **third week of illness** [1]. * However, the statement that **typhoid ulcers** are placed **transversely** is incorrect; they are **longitudinal** in orientation.

Question 1

Heineke‐Mikulicz operation is done for:

Accepted Answer

Pyloric stenosis

Answer

Ureteric stricture

Answer

Urethral stricture

Answer

Stricture common bile duct

Question 2

Which of the following layers is most important in intestinal anastomosis?

Accepted Answer

Submucosa

Answer

Muscularis propria

Answer

Serosa

Answer

Mucosa

Question 3

Sengstaken-Blakemore tube is used to control bleeding in:

Accepted Answer

Bleeding varices

Answer

Duodenal ulcer bleed

Answer

Renal trauma

Answer

Splenic injury in portal hypertension

Question 4

Mallory-Weiss tear causing haematemesis is seen over:

Accepted Answer

Gastroesophageal junction

Answer

Oesophagus

Answer

Anterior wall of stomach

Answer

Fundus of stomach

Question 5

Paralytic ileus is a type of:

Accepted Answer

Adynamic obstruction

Answer

Inflammatory obstruction

Answer

Drug induced obstruction

Answer

Dynamic obstruction

Question 6

Which one of the following is NOT a surgical modality for management of femoral hernia?

Accepted Answer

The canal ring narrowing operation (Lytle’s)

Answer

Lotheissen's (Inguinal) operation

Answer

The low approach (Lockwood)

Answer

The high approach (Mc Evedy)

Question 7

Gastric conduit after oesophageal resection is based upon:

Accepted Answer

Right Gastroepiploic artery

Answer

Short gastric vessels and Vasa brevia

Answer

Left gastric artery

Answer

Right gastric artery

Question 8

A 45 year old female patient presents with a painless firm abdominal swelling of size 10 x 8 cm near the umbilicus. The swelling is reducible and shows no fixation to deeper structures. The most probable clinical diagnosis in this patient is

Accepted Answer

Umbilical hernia

Answer

Incisional hernia

Answer

Inguinal hernia

Answer

Femoral hernia

Question 9

A 35 year old male patient with enteric fever presents to the emergency with sudden onset of generalised abdominal pain, abdominal distension, nausea, vomiting and constipation for last 48 hours. On examination, patient is dehydrated with PR = 110/min and BP = 100/60 mm Hg. There is generalised tenderness, rebound tenderness present and board like rigidity on per abdomen examination. The most likely complication of enteric fever in this patient is

Accepted Answer

Small bowel perforation

Answer

Cholecystitis

Answer

Small bowel enteritis

Answer

Small bowel obstruction

Question 10

Which of the following statements with regard to Enteric perforation are correct?

1. Salmonella typhi is the causative organism for Enteric fever
2. Enteric perforation characteristically occurs during the third week of illness
3. Typhoid ulcers are placed transversely to the long axis of the gut
4. Terminal ileum is the most common site for enteric perforation

Accepted Answer

1, 2 and 4

Answer

2, 3 and 4

Answer

1, 3 and 4

Answer

1, 2 and 3

Gastrointestinal Surgery — MCQs

Gastrointestinal Surgery — MCQs

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