Laparoscopic intersphincteric resection: indications and results.

Area of Science:

• Colorectal Surgery
• Surgical Oncology
• Minimally Invasive Surgery

Background:

• Traditional abdominoperineal excision for distal rectal cancer often necessitates a permanent stoma and may not guarantee complete local tumor control.
• Sphincter-saving procedures, including intersphincteric resection (ISR), have gained prominence, offering alternatives for patients with low-lying rectal tumors without external sphincter involvement.

Purpose of the Study:

• To present current indications for intersphincteric resection (ISR) in distal rectal cancer treatment.
• To report on the operative time and median hospital stay for ISR based on institutional experience.
• To review the latest literature on ISR for distal rectal cancer.

Main Methods:

• Intersphincteric resection (ISR) involves rectal dissection within the intersphincteric plane, preserving the external anal sphincter.
• Both open and laparoscopic approaches to ISR are utilized, with laparoscopic surgery representing a minimally invasive option.
• Magnetic Resonance Imaging (MRI) is essential for precise tumor margin assessment and surgical planning.

Main Results:

• ISR allows for sphincter preservation in selected patients with distal rectal cancer.
• The technique requires strict adherence to indications and careful patient selection for optimal oncological and functional outcomes.
• Accurate preoperative imaging, particularly MRI, is critical for determining the extent of resection and surgical approach.

Conclusions:

• Intersphincteric resection (ISR) is a viable sphincter-saving surgical option for select patients with distal rectal cancer.
• Meticulous surgical technique, precise patient selection, and advanced imaging are paramount for achieving successful outcomes with ISR.
• Minimally invasive approaches, including laparoscopic ISR, are expanding the applicability of this technically demanding procedure.