Laparoscopic Surgery

Laparoscopic surgery — also referred to as minimally invasive surgery or keyhole surgery — is a surgical approach in which the operating surgeon accesses the internal organs of the abdomen and pelvis through a series of small incision, rather than through the single large incision required in traditional open surgery. A slender, rigid optical instrument called a laparoscope — which houses a high-definition camera and a light source — is introduced through one of these small ports and transmits a magnified video image of the operative field to a monitor in the operating room. The surgeon performs the procedure by watching this image and maneuvering specialized long-handled instruments inserted through the remaining ports.

In urological surgery, laparoscopic techniques were introduced in the early 1990s and rapidly became the preferred approach for a wide range of procedures affecting the kidneys, ureters, adrenal glands, bladder, and prostate. They have since been complemented by robot-assisted laparoscopy, which adds articulating wristed instruments and three-dimensional stereoscopic vision to further enhance precision. Both approaches rely on the same fundamental principle of minimally invasive access, and both offer substantial advantages over open surgery in terms of patient recovery.

Compared with open surgery, laparoscopic surgery is associated with reduced intraoperative blood loss and transfusion rates,less post-operative pain, shorter hospital stays, faster return to normal activity, and equivalent or superior cosmetic outcomes — all while achieving comparable cancer control rates for the oncological procedures in which it is applied.

Pre-operative assessment

• Before laparoscopic surgery, the patient undergoes a comprehensive pre-operative evaluation to ensure suitability for minimally invasive surgery and fitness for general anesthesia. This evaluation typically includes:
  • Review of all relevant diagnostic imaging (CT, MRI, or ultrasound of the operative site)
  • Blood tests
  • Urinalysis and, where relevant, urine culture
  • Cardiovascular and pulmonary assessment, particularly in older patients or those with significant comorbidities
  • For renal procedures: baseline measurement of renal function

Patient preparation instructions

• Fasting from midnight the evening before the operation; a longer fast may be recommended for procedures involving the bowel.
• Certain medications will be temporarily discontinued before surgery according to the surgical team's instructions.
• Bowel preparation may be recommended for procedures involving the pelvic organs or when bowel injury risk is considered.
• Patients should make arrangements for transportation and post-operative support at home, as they will not be able to drive themselves after surgery.

In the operating room

• The procedure is performed under general anesthesia. Carbon dioxide gas is insufflated into the abdominal or retroperitoneal cavity through a small initial port, creating the working space necessary for the laparoscopic instruments to maneuver without pressing against the abdominal wall. The laparoscope is introduced through one port, and surgical instruments through the remaining ports. The surgeon operates while viewing the magnified, high-definition image on the monitor.
  
  

Duration and hospital stay

• Operative time varies by procedure. Hospital stays are typically 2–4 days for renal procedures and 3–7 days for pelvic procedures, though this varies by the extent of surgery and the patient's recovery.

Laparoscopic surgery carries the general risks associated with any major procedure under general anesthesia, as well as risks specific to the minimally invasive approach:

• Bleeding: Blood loss during laparoscopic urological surgery is generally lower than in open surgery. 
  
  
• Injury to adjacent structures: The close proximity of the kidneys, ureters, bowel, and major blood vessels within the abdomen means that inadvertent injury to these structures — though uncommon — can occur. Such injuries are typically recognized and repaired intraoperatively.
  
  
• Conversion to open surgery: In a small proportion of cases (typically less than 5%), technical difficulties, unexpected anatomical findings, or intraoperative complications necessitate conversion to a standard open incision. 
  
  
• Infection: Wound infection, urinary tract infection, and, rarely, intra-abdominal infection can occur.
  
  
• Port-site hernia: A hernia developing through one of the small laparoscopic incision sites is an uncommon late complication, most frequently occurring at the larger extraction incision.
  
  
• Pneumoperitoneum-related effects: The carbon dioxide used to inflate the abdominal cavity can occasionally cause shoulder pain from diaphragmatic irritation and transient physiological changes in cardiac and respiratory function, particularly in elderly or high-risk patients.
  
  
• Procedure-specific complications: Each laparoscopic procedure carries additional specific risks. The treating surgeon will discuss these in the pre-operative consultation.

Immediate post-operative course

• Patients are typically able to begin oral intake within a few hours to one day of laparoscopic renal or adrenal surgery. Early ambulation is encouraged. Urinary catheters placed during pelvic procedures remain in place for the post-operative period specified for each procedure. Pain is managed with analgesics, and the smaller incisions of laparoscopic surgery generally allow for more rapid reduction in pain medication requirements compared with open surgery.

Oncological outcomes

• For the cancer surgeries in which laparoscopy is applied, laparoscopic approaches achieve oncological outcomes equivalent to open surgery, with a well-established record of oncological safety.

Return to normal activity

• Most patients undergoing laparoscopic renal procedures are able to return to sedentary work within 2–4 weeks and to normal physical activity within 4–6 weeks. Recovery after pelvic procedures (prostatectomy or cystectomy) may take somewhat longer, particularly regarding functional recovery of urinary continence.

Post-operative surveillance

• The post-operative follow-up schedule is determined by the specific procedure performed and, for oncological procedures, by the cancer type and pathological risk stratification. Surveillance generally includes periodic clinical assessment, laboratory testing, and imaging at defined intervals to monitor for recurrence.