Restorative Proctocolectomy: Hand-Assisted Laparoscopic Surgery Ileal Pouch-Anal Anastomosis



Restorative Proctocolectomy: Hand-Assisted Laparoscopic Surgery Ileal Pouch-Anal Anastomosis


Robert R. Cima







PATIENT HISTORY AND PHYSICAL FINDINGS



  • CUC is characterized by recurrent episodes of bloody diarrhea associated with urgency and tenesmus.


  • Approximately 15% of patients will present initially with fulminant disease, characterized by high-volume bloody diarrhea, severe abdominal distension and pain, fever, and systemic signs of illness. In severe situations, the patient might have peritonitis as the result of colonic perforation or hemodynamic compromise from volume depletion and systemic inflammation.


  • More commonly, the CUC patient with medically refractory disease will not have any characteristic physical findings. However, prolonged disease activity can be associated with poor overall nutritional status and significant weight loss.


IMAGING AND OTHER DIAGNOSTIC STUDIES



  • Computed tomography (CT) enterography is the most commonly used imaging study in CUC patients (FIG 1). The use of intravenous (IV) contrast is essential to highlight intestinal inflammation and helps identify any evidence of small bowel inflammation, which is highly suggestive of Crohn’s disease.


  • In active CUC, the CT will demonstrate inflammatory changes around the involved colon with thickening of the colonic wall. This inflammation usually starts in the rectum and extends proximally into the colon for a varying distance.


  • Endoscopic imaging of the colon is essential (FIG 2). It should demonstrate continuous inflammation from the rectum for a variable distance, extending proximally into the colon. Evidence of discontinuous mucosal inflammation is worrisome for an underlying diagnosis of Crohn’s disease.






FIG 2 • Colonoscopy shows diffuse severe inflammation and friable mucosa, with a loss of the vascular appearance of the colon, erythema, hemorrhage, and inflammatory pseudopolyps.



SURGICAL MANAGEMENT



  • Frequently, an IPAA for the treatment of CUC is performed in stages, depending on the patient’s overall health at the time of surgery or the indications for surgery.


  • The primary indications for surgery are toxic or fulminant disease activity, medically refractory disease, and/or evidence of dysplasia/malignancy.


  • In an emergency situation, or in an ill patient on multiple immunosuppressive medications, the first operation is a subtotal colectomy with an end ileostomy.


  • Once the patient recovers his or her health, a completion proctectomy with IPAA and diverting ileostomy may be performed. At the last operation (the third stage), the ileostomy is reversed.


  • In outpatients with mild disease that are coming to surgery, the total proctocolectomy with IPAA and diverting loop ileostomy may be performed at a single operation.


  • In some institutions, the diverting loop ileostomy may be routinely omitted, depending on a number of patient- and procedure-specific factors. However, the majority of centers recommend use of a temporary diversion.

Jul 24, 2016 | Posted by in GENERAL SURGERY | Comments Off on Restorative Proctocolectomy: Hand-Assisted Laparoscopic Surgery Ileal Pouch-Anal Anastomosis

Full access? Get Clinical Tree

Get Clinical Tree app for offline access