Liver Cancer Clinical Trial
Official title:
Postoperative Heme Oxygenase Induction and Carbon Monoxide Production as a Novel Method to Assess Hepatic Regeneration and Predict Hepatic Related Morbidity After Partial Hepatectomy-1301GCC
The study will monitor carbon monoxide production in patients undergoing liver resection. Carbon monoxide will be checked from arterial blood gas obtained routinely as a part of the postoperative care as well as from the exhaled air of the patient through a CO detector commercially available and used as smokerlyzer helping people to stop smoking. The results of the surgical resection will be collected from the patient routinely ordered tests after liver resection including pathology of the resected part of the liver, laboratory and radiology tests. The study aims to identify the relationship between CO production and recovery after liver resection. Results of this study may help in predicting and improving results of liver resection.
The goal of this proposal is to elucidate the role of HO-1 induction in hepatic regeneration after partial hepatectomy (PH). There is a growing body of evidence that HO-1 induction through CO production has an important role in cellular protection and regeneration. To test this concept, we will monitor endogenous CO production in patients who undergo PH and analyze the relationship between CO production and hepatic regeneration. Using this approach we will test the following two hypotheses: (1) HO-1 induction after PH is proportional to the extent of the surgical resection, and (2) failure to appropriately induce HO-1 is associated with impaired hepatic regeneration. Specific Aim 1: To monitor the extent of HO-1 induction (by measuring endogenous CO production) in relationship to the extent of hepatic resection 1.1 Monitor CO in exhaled air of patients before liver resection, at 4 hours and 24 hours after PH 1.2 Monitor carboxyhemoglobin(COHb) in the arterial blood gas of patients before liver resection at 4 hours and 24 hours after PH 1.3 Analyze the relationship between CO production and the extent of hepatic resection assessed by computed scans liver volumetric study at one and three months after PH, size and weight of the resected specimen and operative report. Specific Aim 2: To analyze the relationship between HO-1 induction and the quality of post-hepatectomy liver regeneration after PH 2.1 Analyze the relationship between CO production and the quantity and quality of hepatic regeneration assessed by computed scans liver volumetric study at one and three months after PH and liver function tests after PH. 2.2 Determine the relation between postoperative liver related morbidity in patients undergoing PH and the extent of postoperative HO-1 induction. ;
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