Post-hemi-hepatectomy Care

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Post-hemi-hepatectomy Care

11/11/10

SP Notes

OHOA pages 550-551 (Part II Notes)

- major surgery

- perioperative mortality = 3%

- usual indication = metastatic colorectal adenocarcinoma or cholangiocarcinoma

- complications common post operatively

INTRAOPERATIVE

- be prepared for catastrophic blood loss (10U crossmatch)

- use shorting acting drugs that ideally minimally metabolised by liver

- invasive monitoring

- massive access (12Fr CVL or 7.5Fr Swan-Ganz introducer)

- thoracic epidural effective

- preserve hepatic blood flow (use isoflurane or desflurane)

- keep CVP 0-2mmHg and SBP 70-80mmHg (decreases bleeding and congestion)

- actively warm

- subarachnoid morphine

- remifentanil

- clonidine 1-2mcg\kg IM

Stages

1. perihepatic dissection

2. identification of vascular anatomy

3. may use intraoperative U/S to pinpoint lesions

4. resection

- resection causes bleeding that may need to be controlled using Pringle’s Manoeuvre

(intermittent cross clamping of vascular inflow) -> may cause ischaemic injury

POSTOPERATIVE

General Problems

- bleeding/coagulopathy -> day 3: INR 1.2-1.8 + on LMWH! -> just when you want to pull epidural!

- hypothermia

- anaesthesia: partially reversed, N+V, pain, excessive analgesia

- cardiovascular: hypotension (mult-factorial), acute coronary syndrome, CVA, arrhythmias

- respiratory: atelectasis, pleural effusions, early infection, TRALI

- renal: oliguria, ATN -> ARF

- gastric stasis

- VTE risk

- sepsis

Specific Problems

Jeremy Fernando (2011)

- pre-morbid conditions: UC -> primary sclerosing cholangitis, metastatic disease, steroids, immune state, nutrition

- coagulopathy -> bleeding: multifactorial

- pathophysiological cardiovascular changes: increased splanchnic blood flow, increased Q

- liver dysfunction: early sign = low urea day 1

- liver failure: within 72 hrs (jaundice, encephalopathy, coagulopathy, transaminitis)

- cholangitis

- respiratory: right pneumo/haemothorax, right diaphragmatic dysfunction

- gastrointestinal: ileus, ascites, haemorrhage, anastomotic leak

- renal: hepatorenal syndrome

- metabolic: hyperlactataemia, hypernatraemia, hypokalaemia

Jeremy Fernando (2011)

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