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To safely identify the appendiceal base during a complex laparoscopic appendicectomy, the following technical strategies should be utilized:
Trace the Taeniae Coli: The taeniae coli converge at the caecal origin of the appendix and serve as the single most important anatomical guide. Following them leads directly to the true origin, which is crucial when the appendix is plastered to the caecum or when the distal portion has separated following perforation.
Approach Inflammatory Masses from the Periphery: When the appendix is concealed within a phlegmon or mass, establish a safe plane along its periphery or approach via its tip or lateral peritoneal attachments rather than dissecting blindly through the centre.
Use Sharp Dissection and Suction Countertraction: In a hostile right iliac fossa, divide adhesions close to the appendix or peritoneal surface using sharp dissection. Avoid blunt traction to prevent avulsion of the appendix or tearing of the caecum or terminal ileum, and use suction to provide gentle countertraction.
Mobilize Adjacent Anatomical Structures:
Retrocaecal appendix: Incise the lateral peritoneal reflection and gently rotate the caecum medially, remaining mindful of the right ureter and gonadal vessels.
Pelvic appendix: Positively identify the terminal ileum, ovary, fallopian tube, bladder, and pelvic sidewall prior to applying energy.
Optimise Exposure and Vision: Place the patient in a Trendelenburg position with a modest left tilt, use a 30-degree laparoscope to maintain a clear horizon, ensure adequate muscle relaxation, and adjust or add ports to achieve optimal triangulation. Perform a systematic survey to identify the caecum, terminal ileum, and ileocaecal valve before proceeding.
Control a Divided Stump Promptly: If the appendix is divided during mobilization, secure the proximal stump immediately with an atraumatic clamp or grasper and reassess the anatomy, rather than chasing a retracted stump into inflamed tissue.
Know When to Reassess or Convert: Request senior assistance early if the anatomy is unclear. If the appendiceal base cannot be identified with certainty despite these steps, conversion to open surgery is a sound decision to maintain patient safety.
Identifying the true base ensures that any residual stump left behind is shorter than approximately 5 mm (in healthy, viable tissue) to minimize the risk of stump appendicitis.
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DISCLAIMER: This content is for reference only and you must follow local/standard guidelines in clinical practice
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