Minimally Invasive Surgery — MCQs

Q: What is a key advantage of fiberoptic bronchoscopy compared to rigid bronchoscopy?

Provides superior visualization of airways. ***Provides superior visualization of airways*** - Fiberoptic bronchoscopy uses a **flexible scope** with a built-in camera, allowing access and visualization of **smaller, more peripheral airways** (segmental and subsegmental bronchi) that rigid bronchoscopes cannot reach. - This enhanced maneuverability provides a much **broader field of view** and greater diagnostic capabilities for subtle lesions in the distal airways. *Preferred for foreign body removal* - **Rigid bronchoscopy** is generally preferred for foreign body removal, especially in children, due to its **larger working channel** and ability to provide a more stable and direct path for retrieval instruments. - While fiberoptic scopes can remove small, superficial foreign bodies, they lack the **force and suction** needed for larger or impacted objects. *Provides better control for massive hemoptysis* - **Rigid bronchoscopy** is superior for managing **massive hemoptysis** due to its larger lumen allowing better ventilation, superior suction capabilities, and ability to tamponade bleeding sites. - The rigid scope provides a stable platform for therapeutic interventions like **laser therapy, cryotherapy, or balloon tamponade** that require precise control. *Offers better stability during procedures* - **Rigid bronchoscopy** offers **superior stability** and a larger, unobstructed working channel, which is crucial for procedures requiring significant manipulation, such as **tumor debulking** or **stent placement**. - Its rigid structure provides a stable platform for instruments, whereas a flexible scope can be more prone to movement and offers less robust therapeutic capabilities.

Q: The technique of laparoscopic cholecystectomy was first performed by whom?

Erich Muhe. ***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.

Q: Which is the most frequently used gas for laparoscopy?

Carbon Dioxide. ***Correct: Carbon Dioxide*** - **Carbon dioxide (CO2)** is the most commonly used gas for creating **pneumoperitoneum** in laparoscopy due to its high solubility in blood and rapid elimination through the respiratory system. - Its rapid absorption minimizes the risk of **gas emboli**, and its lower cost makes it a practical choice. *Incorrect: Helium* - While helium can be used, it is generally reserved for patients who cannot tolerate **CO2 insufflation**, such as those with severe **hypercapnia** or acidosis. - Helium is less soluble in blood, increasing the risk of **gas embolism**, and is also more expensive. *Incorrect: Nitrogen* - **Nitrogen** is generally avoided in laparoscopic procedures because of its low solubility in blood, which poses a significant risk of **gas embolism**. - Its slow absorption from the peritoneal cavity can prolong recovery and is less desirable than CO2. *Incorrect: Oxygen* - **Oxygen** is not used for creating **pneumoperitoneum** because it supports combustion and would increase the risk of fire during surgical procedures involving electrocautery or lasers. - Additionally, like nitrogen, its solubility and physiological effects are not ideal for laparoscopic insufflation.

Practice by Chapter

Laparoscopic Equipment and Instrumentation

Practice Questions

Physiological Changes in Laparoscopy

Practice Questions

Laparoscopic Access Techniques

Practice Questions

Laparoscopic Cholecystectomy

Practice Questions

Laparoscopic Appendectomy

Practice Questions

Laparoscopic Hernia Repair

Practice Questions

Laparoscopic Colorectal Surgery

Practice Questions

Laparoscopic Upper GI Surgery

Practice Questions

Robotic Surgery

Practice Questions

Single Incision Laparoscopic Surgery

Practice Questions

NOTES (Natural Orifice Transluminal Endoscopic Surgery)

Practice Questions

Complications of Minimally Invasive Surgery

Practice Questions

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