Abdominal Surgery Curriculum.  Cholecystectomy is performed most often laparoscopically for symptomatic gallstones (usually causing cholecystitis with.

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Presentation transcript:

Abdominal Surgery Curriculum

 Cholecystectomy is performed most often laparoscopically for symptomatic gallstones (usually causing cholecystitis with fever, RUQ pain and leukocytosis), pancreatitis or acalculous cholecystitis

 Patient population: the 4 F’s ◦ Fat, female, forty, fertile ◦ Airway exam is important!  Presenting symptoms include pain, nausea, vomiting therefore determine if RSI is indicated based on patient history  LFTs and RUQ ultrasound are typically done by surgeon prior to OR  If patient has acute cholecystitis ◦ Assess respiratory status (pain  splinting  atelectasis  hypoxia) ◦ Assess hemodynamics (hypotensive, tachycardic? May warrant an a-line or 2 nd PIV)

 After trocars are placed, the fundus of the GB is retracted caudally for exposure of the cystic duct and vessels  Cystic arteries (1 or 2) are clipped, cystic duct is clipped  The GB is carefully dissected from the liver bed from cystic duct up to fundus and removed  Intraoperative choleangiography ◦ Cholangiography confirms the biliary anatomy and reveals the common bile duct (CBD) stones, allowing laparoscopic duct exploration if needed ◦ Takes mins, requires C-arm, some surgeons do it in every case, others perform it only if concerned about CBD stones

 Standard monitors and PIV ◦ Unless septic which may warrant a-line or 2 nd PIV  Before or after induction (standard vs. RSI based on history), decompress stomach with OGT  NMB improves surgical conditions for pneumoperitoneum but… ◦ Entire case can take less than 30 minutes (especially at the Valley) therefore best goal is 1 out of 4 twitches  Avoid N 2 O which may diffuse into abdominal space and increase distension

 Trocar placement is DANGEROUS!!! ◦ Blindly pushing a large, sharp object into the abdomen can lead to complications like trocar-in-iliac artery (which is BAD!)  Bleeding is the most common complication, often from cystic artery or right hepatic artery  Often will lead surgeons to convert to open procedure (~5% conversion rate) which will change management (no pneumoperitoneum, bigger incision)

 Lap choles are commonly day surgeries therefore PONV and pain control are major considerations  PONV (also see Subtopic 4D) ◦ Most patients get ondansetron at the “end” of the case (time to peak is ~30 mins so for a short case consider giving it early!) ◦ Meta-analysis of 17 trials showed that dexamethasone (4mg) at the start of the case may be beneficial (Karanicolas et al. 2008)  Pain ◦ Multimodal therapy with NSAIDs (check renal function), local anesthetic wound infiltration and opioids provides best pain control

 You are caring for a 26-year old female patient scheduled for a laparoscopic cholecystectomy. She reports a history of severe PONV. You are considering using aprepitant (Emend) as treatment. Which statement about aprepitant is MOST likely true? A.It should be administered as close to the end of surgery as possible B.Once administered, the patient can no longer receive ondansteron C.It is thought to work by blocking the action substance P in the CNS D.It is administered via the IV route Modified from ACE program. Issue 7A.

 C. It blocks the action of substance P via binding to the NK1 receptor  Dose of aprepitant 40mg PO should be given 1-3 hours prior to surgery  Completely inhibits PONV in 64% of patients (Gan TJ et al. A&A )

 An otherwise healthy 28 yo female is schedules to undergo laparoscopic cholecystectomy. A rapid sequence induction is performed but a copious quantity of nonoparticulate gastric contents is noted in the posterior pharynx on DL. Which of the following is MOST likely recommended in the management of this patient following tracheal intubation? A.Tracheal suctioning B.Steroid administration C.Antibiotics D.Bronchial lavage Modified from ACE program. Issue 7B.

 A. Tracheal suctioning  If regurgitation of gastric contents is recognized on DL, recommended immediate treatment includes placing the patient in a head-down position and suctioning the oropharynx prior to intubation.  Once the trachea is intubated most authors recommend tracheal suctioning, without lavage, to remove any residual fluid.  Gatric contents are generally sterile. There is no indication for steroids or antibiotics.

 Curet MJ et al. (2009). Laparoscopic General Surgery. In Jaffe RA, Samuels SI (Eds.), Anesthesiologist’s Manual of Surgical Procedures (4 th Ed., pp ). Philadelphia: Lippincott Williams and Wilkins.  Fielding GA. (2009). Laparoscopic cholecystectomy. In: Clavien PA, Sarr M, Fong Y, Georgiev P. (Eds.), Atlas of Upper Gastrointestinal and Hepato- Pancreato-Biliary Surgery (7 th Ed., pp ). New York: Springer.  Karanicolas PJ et al. The impact of prophylactic dexamethasone on nausea and vomiting after laparoscopic cholecystectomy: a systematic review and meta-analysis. Ann Surg. 2008; 248 (5):  Mitra S at al. Pain Relief in Laparoscopic Cholecystectomy-A Review of the Current Options. Pain Prac Oct 19. Epub.