Cirrhosis and Portal Hypertension — MCQs
What is the normal range for portal vein pressure?
Which of the following medications is commonly used in the management of ascites due to cirrhosis?
Gandy-Gamma nodules are typically seen in chronic venous congestion of
A 60-year-old male with a history of cirrhosis presents with a 4 cm hepatocellular carcinoma (HCC) located in segment VII of the liver. Considering the patient has Child-Pugh A liver function, which clinical factors are most critical in deciding between liver resection and radiofrequency ablation (RFA)?
Which surgical procedure is most likely to lead to the development of hepatic encephalopathy due to increased ammonia levels?
Which of the following is NOT a contraindication for laparoscopic cholecystectomy?
Pringle's maneuver is mainly used to control bleeding from which site?
Pringle's manoeuvre is done to stop bleeding at:
What is the classification of choledochocele among choledochal cysts?
A patient with cirrhosis develops ascites. Which of the following best explains the mechanism of fluid accumulation?
Cirrhosis and Portal Hypertension Indian Medical PG Practice Questions and MCQs
Question 1: What is the normal range for portal vein pressure?
- A. 1-3 mm Hg
- B. 3-5 mm Hg
- C. 5-10 mm Hg (Correct Answer)
- D. 10-15 mm Hg
Explanation: ***5-10 mm Hg*** - The normal **portal vein pressure** typically ranges from 5 to 10 mmHg. - Pressures above this range are indicative of **portal hypertension**, a common complication of **cirrhosis** and other liver diseases, which can lead to varices and ascites. *1-3 mm Hg* - This range is significantly lower than the **normal portal vein pressure**. - Such low pressures are not typically observed in the **portal venous system** under normal physiological conditions. *3-5 mm Hg* - This range is still considered to be on the lower end and borders on **hypotension** within the portal system. - While it's relatively close to the lower limit of normal, it doesn't represent the typical **physiological range** of portal vein pressure. *10-15 mm Hg* - Pressures in this range are usually considered **elevated** and fall within the spectrum of **portal hypertension**. - While slight elevations might occur transiently, a sustained pressure in this range indicates an underlying issue, such as **cirrhosis** or **post-hepatic obstruction**.
Question 2: Which of the following medications is commonly used in the management of ascites due to cirrhosis?
- A. Metformin
- B. Hydrochlorothiazide
- C. Spironolactone (Correct Answer)
- D. Propranolol
Explanation: ***Spironolactone*** - **Spironolactone** is an **aldosterone antagonist**, which is a potassium-sparing diuretic commonly used to treat ascites in cirrhosis [1]. - It works by blocking the effects of **aldosterone**, leading to increased sodium and water excretion while retaining potassium [1]. *Metformin* - **Metformin** is an oral antihyperglycemic agent used to manage **Type 2 diabetes mellitus**. - It has no role in the direct management of **ascites** or fluid retention. *Hydrochlorothiazide* - **Hydrochlorothiazide** is a **thiazide diuretic** that acts on the distal convoluted tubule [1]. - While it can be used for fluid retention, it is generally less effective than loop diuretics or spironolactone in ascites due to cirrhosis and can lead to **hypokalemia**. *Propranolol* - **Propranolol** is a **non-selective beta-blocker** used to reduce portal pressure in cirrhosis, preventing variceal bleeding. - It is not used to directly treat ascites and does not have diuretic properties.
Question 3: Gandy-Gamma nodules are typically seen in chronic venous congestion of
- A. Lungs
- B. Kidneys
- C. Liver
- D. Spleen (Correct Answer)
Explanation: ***Spleen*** - **Gandy-Gamma nodules** (also called **Gamna-Gandy bodies**) are characteristic findings in the spleen, resulting from **chronic passive congestion**. - These nodules are composed of **fibrous tissue**, **hemosiderin**, and **calcium deposits**, reflecting old microhemorrhages and fibrosis due to chronic congestion. - They appear as **rust-brown nodules** on the splenic capsule, typically seen in conditions causing splenic congestion such as **portal hypertension** or **congestive splenomegaly**. *Lungs* - Chronic venous congestion in the lungs typically leads to **pulmonary hypertension** and **hemosiderin-laden macrophages** (heart failure cells). - It does not involve the formation of Gandy-Gamma nodules. *Kidneys* - Chronic venous congestion of the kidneys can lead to **renal dysfunction** and morphological changes like **glomerular sclerosis** or **tubulointerstitial fibrosis**. - Gandy-Gamma nodules are not associated with renal pathology. *Liver* - Chronic venous congestion of the liver, often due to **right-sided heart failure**, results in **nutmeg liver** appearance. - This involves **centrilobular necrosis** and congestion, but not Gandy-Gamma nodules.
Question 4: A 60-year-old male with a history of cirrhosis presents with a 4 cm hepatocellular carcinoma (HCC) located in segment VII of the liver. Considering the patient has Child-Pugh A liver function, which clinical factors are most critical in deciding between liver resection and radiofrequency ablation (RFA)?
- A. Tumor size, location, liver function, and portal hypertension status (Correct Answer)
- B. Presence of comorbidities and performance status
- C. Tumor vascular invasion and metastasis
- D. Patient’s age and overall health status
Explanation: ***Tumor size, location, liver function, and portal hypertension status*** - **Tumor size and location** are critical for resectability and RFA feasibility, as HCCs larger than 3-5 cm or located near major vessels/bile ducts may be harder to ablate or resect safely. - **Liver function (Child-Pugh A)** helps assess the liver's reserve to tolerate resection, while the presence of **portal hypertension** indicates a higher risk of post-resection liver decompensation, favoring RFA. *Presence of comorbidities and performance status* - While important for overall surgical risk assessment (ASA score), **comorbidities** and **performance status** are general considerations and not the primary factors differentiating between liver resection and RFA for HCC in a patient with good liver function. - These factors influence the patient's ability to undergo any intervention, but they don't directly guide the choice between a local ablative therapy and surgical removal based on tumor or liver characteristics. *Tumor vascular invasion and metastasis* - The presence of **vascular invasion** or **distant metastasis** generally indicates advanced disease, precluding both curative resection and RFA, pushing towards systemic therapies or palliative care. - These are factors that determine if **curative treatment** is an option at all, rather than helping to choose between two curative local treatments (resection vs. RFA). *Patient’s age and overall health status* - **Age** is less of a direct contraindication for either procedure in itself, especially in a 60-year-old with Child-Pugh A, as physiological age and performance status are more relevant than chronological age. - While **overall health status** is considered, it overlaps with comorbidities and performance status and is not as discriminative as tumor-specific factors or liver physiology in choosing between resection and RFA for HCC.
Question 5: Which surgical procedure is most likely to lead to the development of hepatic encephalopathy due to increased ammonia levels?
- A. Splenorenal shunt
- B. Portacaval anastomosis (Correct Answer)
- C. Sugiura operation
- D. Talma-Morison Operation
Explanation: ***Portacaval anastomosis*** - This procedure directly connects the **portal vein** to the **inferior vena cava**, bypassing the liver. - As a result, **ammonia** and other gut-derived toxins that would normally be detoxified by the liver are shunted directly into the systemic circulation, leading to or worsening **hepatic encephalopathy**. *Splenorenal shunt* - A **splenorenal shunt** connects the splenic vein to the left renal vein, which also diverts portal blood flow away from the liver but is generally associated with a lower incidence of encephalopathy compared to portacaval shunts. - While it can increase ammonia levels, the design of this shunt typically allows some continued portal flow to the liver, mitigating the risk compared to complete portacaval diversion. *Sugiura operation* - The **Sugiura operation** is a devascularization procedure involving extensive esophageal and gastric transection and re-anastomosis, aimed at controlling variceal bleeding. - This procedure does not involve the creation of a major portosystemic shunt, and therefore, it does not directly lead to increased systemic ammonia levels or higher risk of hepatic encephalopathy. *Talma-Morison Operation* - The **Talma-Morison operation** (or omentopexy) involves suturing the omentum to the abdominal wall to promote collateral circulation and relieve portal hypertension. - This procedure aims to create new collateral pathways, but it does not involve a direct, large-bore shunt that bypasses the liver significantly, making it less likely to cause a dramatic increase in systemic ammonia.
Question 6: Which of the following is NOT a contraindication for laparoscopic cholecystectomy?
- A. Patients with severe liver cirrhosis and portal hypertension
- B. Patients with obesity (Correct Answer)
- C. Patients with a history of previous abdominal surgery
- D. Patients with severe chronic obstructive pulmonary disease (COPD)
Explanation: ***Patients with obesity*** - **Obesity** is not a contraindication for laparoscopic cholecystectomy and is actually often considered a **relative indication** for the laparoscopic approach over open surgery. - Laparoscopic cholecystectomy in obese patients offers significant advantages including reduced wound complications, decreased infection rates, better cosmesis, and faster recovery. - While technically more challenging due to thicker abdominal wall and increased intra-abdominal fat, experienced surgical teams routinely perform laparoscopic cholecystectomy in obese patients safely. *Patients with severe liver cirrhosis and portal hypertension* - **Severe liver cirrhosis and portal hypertension** are considered absolute or strong contraindications due to significantly increased risk of bleeding from dilated collateral vessels and impaired coagulation. - Pneumoperitoneum can further compromise hepatic blood flow and worsen portal hypertension. - These patients often require open surgery with careful hemostasis or medical management due to prohibitively high operative risk. *Patients with severe chronic obstructive pulmonary disease (COPD)* - Patients with **severe COPD** with poor pulmonary reserve may have difficulty tolerating pneumoperitoneum due to increased intrathoracic pressure, reduced diaphragmatic excursion, and decreased ventilation-perfusion matching. - Hypercarbia from CO₂ absorption and increased airway pressures can lead to significant respiratory compromise in patients with limited pulmonary reserve. - While mild-moderate COPD is not a contraindication with appropriate anesthetic management, severe COPD with inability to tolerate pneumoperitoneum constitutes a contraindication. *Patients with a history of previous abdominal surgery* - A history of **previous abdominal surgery** is considered at most a **relative contraindication**, not an absolute one, and is routinely managed in modern laparoscopic practice. - While intra-abdominal adhesions may increase technical difficulty and risk of bowel injury, techniques like open Hassan port insertion and careful adhesiolysis allow safe laparoscopic surgery in most cases. - Previous surgery requires careful preoperative assessment and may necessitate modified port placement or conversion to open if dense adhesions are encountered, but does not preclude attempting laparoscopy.
Question 7: Pringle's maneuver is mainly used to control bleeding from which site?
- A. IVC
- B. Cystic artery
- C. Hepatic vein
- D. Liver parenchyma (Correct Answer)
Explanation: ***Liver parenchyma*** - Pringle's maneuver involves **clamping the hepatoduodenal ligament**, which contains the portal triad (hepatic artery, portal vein, and bile duct), to temporarily **reduce blood flow to the liver**. - This maneuver is primarily performed during **liver surgery** to control bleeding from the liver parenchyma itself, allowing for safer resection or repair of liver injuries. *IVC* - Bleeding from the **inferior vena cava (IVC)** is not directly controlled by Pringle's maneuver. The IVC is located posterior to the liver parenchyma and is not part of the hepatoduodenal ligament. - Controlling IVC bleeding typically requires **direct repair** or other specific vascular control techniques, often involving clamps placed directly on the IVC. *Cystic artery* - While the **cystic artery** is a branch of the right hepatic artery (which is occluded during Pringle's maneuver), the maneuver is not *mainly* used to control isolated cystic artery bleeding. - **Cystic artery bleeding** is typically encountered during cholecystectomy and is controlled by ligating or clipping the artery directly, rather than relying on a general liver inflow occlusion. *Hepatic vein* - The **hepatic veins** drain directly into the IVC from the liver parenchyma and are not part of the hepatoduodenal ligament, thus their blood flow is not directly occluded by Pringle's maneuver. - Bleeding from the hepatic veins is a more challenging complication in liver surgery, often requiring **direct compression**, suture repair, or venovenous bypass to manage.
Question 8: Pringle's manoeuvre is done to stop bleeding at:
- A. Hepatoduodenal ligament (Correct Answer)
- B. Splenic artery
- C. Renal artery
- D. Left gastric artery
Explanation: ***Hepatoduodenal ligament*** - **Pringle's manoeuvre** involves clamping the **hepatoduodenal ligament** to temporarily occlude the hepatic artery and portal vein, which are the main blood supply to the liver. - This maneuver is used during **liver surgery** to control or prevent bleeding from the liver parenchyma. *Splenic artery* - The **splenic artery** supplies the spleen and is not directly occluded by Pringle's manoeuvre. - Bleeding from the splenic artery would require direct clamping or **ligation** of that vessel, not compression of the hepatoduodenal ligament. *Renal artery* - The **renal artery** supplies the kidney and is located in the retroperitoneum, far from the liver and the hepatoduodenal ligament. - Pringle's manoeuvre has no effect on blood flow to the kidneys. *Left gastric artery* - The **left gastric artery** supplies the stomach and is a branch of the celiac trunk, which is proximal to the points of compression in Pringle's manoeuvre. - While it is part of the systemic circulation, Pringle's manoeuvre is specific to the blood supply entering the liver via the hepatoduodenal ligament, not individual gastric vessels.
Question 9: What is the classification of choledochocele among choledochal cysts?
- A. II
- B. III (Correct Answer)
- C. IV
- D. V
Explanation: ***III*** - A choledochocele is a specific type of **choledochal cyst** that involves the **intraduodenal dilatation** of the distal common bile duct. - It is classified as Type III in the Todani classification system for choledochal cysts. *II* - Type II choledochal cysts are characterized by a **diverticulum** protruding from the side of the main bile duct. - This morphology is distinct from the intraduodenal dilatation seen in a choledochocele. *IV* - Type IV choledochal cysts are defined by **multiple cystic dilatations** that can involve both intrahepatic and extrahepatic portions of the bile ducts (Type IVA) or only extrahepatic ducts (Type IVB). - This classification represents a more diffuse and widespread cystic disease compared to a single choledochocele. *V* - Type V choledochal cysts are also known as **Caroli's disease**, which involves diffuse **cystic dilatation of the intrahepatic bile ducts**. - This condition is specifically limited to the intrahepatic biliary tree, unlike the extrahepatic or intraduodenal nature of a choledochocele.
Question 10: A patient with cirrhosis develops ascites. Which of the following best explains the mechanism of fluid accumulation?
- A. Decreased plasma oncotic pressure (Correct Answer)
- B. Decreased plasma osmolality
- C. Increased lymphatic drainage
- D. Increased capillary permeability
- E. Decreased hydrostatic pressure
Explanation: ***Decreased plasma oncotic pressure*** - In cirrhosis, the liver's synthetic function is impaired, leading to reduced production of **albumin**, the main protein responsible for maintaining plasma oncotic pressure [1]. - A decrease in plasma oncotic pressure reduces the osmotic pull of fluid back into the capillaries, favoring the movement of fluid out of the vasculature into the peritoneal cavity, resulting in **ascites** [3]. *Decreased plasma osmolality* - While patients with cirrhosis may develop hyponatremia (low plasma sodium) leading to decreased plasma osmolality, this is typically due to impaired free water excretion and ADH dysregulation, and is not the primary direct mechanism for ascites formation. - A decrease in plasma osmolality would generally favor fluid movement *out* of cells into the extracellular space, but the key driver for ascites development is the imbalance in hydrostatic and oncotic forces across capillary walls [1]. *Increased lymphatic drainage* - In advanced cirrhosis with portal hypertension, there is often *increased* hepatic and splanchnic lymphatic flow due to elevated sinusoidal pressure. - While the lymphatic system tries to compensate by draining excess fluid, its capacity can be overwhelmed, contributing to ascites rather than being the primary cause of its accumulation *as a standalone mechanism*. *Increased capillary permeability* - Increased capillary permeability is characteristic of inflammatory conditions or sepsis, allowing proteins and fluid to leak out of capillaries. - While some localized inflammation may occur in cirrhosis, it is not the primary or widespread mechanism for the massive fluid accumulation seen in ascites. *Decreased hydrostatic pressure* - In cirrhosis, **portal hypertension** leads to *increased* hydrostatic pressure within the splanchnic circulation, not decreased [2]. - This elevated hydrostatic pressure forces fluid out of the hepatic sinusoids and splanchnic capillaries into the peritoneal cavity, which is a key contributor to ascites, opposing the statement "decreased hydrostatic pressure" [2].
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