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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01099475
Other study ID # 06-2-067
Secondary ID
Status Completed
Phase N/A
First received April 1, 2010
Last updated October 13, 2014
Start date October 2007
Est. completion date April 2011

Study information

Verified date October 2014
Source Maastricht University Medical Center
Contact n/a
Is FDA regulated No
Health authority Netherlands: The Central Committee on Research Involving Human Subjects (CCMO)
Study type Interventional

Clinical Trial Summary

In order to prevent excessive blood loss during liver surgery, an intermittent Pringle manoeuvre (IPM) can be applied. This implies a temporary clamping of the portal vein and hepatic artery in the hepatoduodenal ligament in order to occlude hepatic inflow. The optimal duration of the IPM is unknown. This randomized controlled trial aimed to analyse differences in hepatocellular damage after 15 minutes or 30 minutes IPM during liver surgery for primary or secondary liver tumours.


Description:

Surgical procedure Patients were anaesthetized using isoflurane and propofol. They routinely had an epidural catheter, urinary catheter, two peripheral venous catheters and indwelling catheters in a jugular vein and radial artery. Body temperature was maintained using a Bair Hugger system (Arizant Healthcare Inc. Eden Prairie, Minnesota).

The surgical procedure was performed using a subcostal bilateral incision and Olivier retractors to improve exposure. After dissection of the teres hepatis ligament, the liver was mobilized. Thereafter, an intra-operative ultrasound was performed to define the position of the tumour in relation to vascular and biliary structures. As IPM was not routinely applied, a patient was randomized for 15 minted IPM (15IPM) or 30 minutes IPM (30IPM) only after the surgeon had decided a complete Pringle manoeuvre would be required. During 15IPM or 30IPM, the complete portal triad was clamped using a rubber sling. The time of inflow occlusion was adapted to the need according to the randomization protocol. Occasionally, the left or right pedicle was ligated after protocolled IPM. Five minutes reperfusion intervals were applied during which transection was stopped and cut surfaces were gently compressed to ensure hemostasis. A Cavitron Ultrasonic Surgical Aspirator (CUSA system 200 macrodissector, Cavitron Surgical Systems, Stamford, Connecticut) and Argon beam coagulation (Force GSU System, Valleylab, Boulder, Colorado) were used for liver transection. A stapler device or clamps were used for transection of the hepatic veins. Central venous pressure was maintained below 5 centimetre of water (cm H2O) during transection to reduce venous back-bleeding. After surgery, the weight of the resection specimen was recorded. Perioperative care was protocolled, as described earlier.


Recruitment information / eligibility

Status Completed
Enrollment 20
Est. completion date April 2011
Est. primary completion date July 2009
Accepts healthy volunteers No
Gender Both
Age group 18 Years and older
Eligibility Inclusion Criteria:

- patients > 18 years of age and < 100 years of age

- primary or secondary liver tumours requiring liver surgery

Exclusion Criteria:

- pre-existent liver disease (e.g. inflammatory liver disease, cirrhosis, inborn errors of metabolism)

- cholangiocarcinoma requiring biliary tract reconstruction during surgery

- steroid hormone medication

- tumours deemed irresectable during liver surgery

- laparoscopic liver surgery

Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Basic Science


Related Conditions & MeSH terms


Intervention

Procedure:
Pringle manoeuvre 15 minutes
During parenchymal transection, the hepatoduodenal ligament will be clamped by a rubber band for 2-times 15 minutes with 5 minutes reperfusion
Pringle manoeuvre 30 minutes
During parenchymal transection, the hepatoduodenal ligament will be clamped by a rubber band for 30 minutes with 5 minutes reperfusion

Locations

Country Name City State
Netherlands Maastricht University Medical Centre Maastricht PO Box 5800

Sponsors (1)

Lead Sponsor Collaborator
Maastricht University Medical Center

Country where clinical trial is conducted

Netherlands, 

References & Publications (2)

Dello SA, Reisinger KW, van Dam RM, Bemelmans MH, van Kuppevelt TH, van den Broek MA, Olde Damink SW, Poeze M, Buurman WA, Dejong CH. Total intermittent Pringle maneuver during liver resection can induce intestinal epithelial cell damage and endotoxemia. — View Citation

van den Broek MA, Bloemen JG, Dello SA, van de Poll MC, Olde Damink SW, Dejong CH. Randomized controlled trial analyzing the effect of 15 or 30 min intermittent Pringle maneuver on hepatocellular damage during liver surgery. J Hepatol. 2011 Aug;55(2):337- — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Hepatocellular Damage Reflected by Liver Fatty-acid Binding Protein (L-FABP) Levels At specific time points before, during and after liver surgery, plasma samples will be obtained to analyse the amount of hepatocellular damage reflected by L-FABP) level. These timepoints include: baseline (before operation), just before intermittent pedicle clamping, just before end of 15 or 30 minutes pedicle clamping, end of 5 minutes reperfusion, end of liver surgery, 8 hours after start liver surgery, postoperative day 1, 2 and 3. This continuous variable with repeated measurements was summarized as area under the curve (AUC) from baseline to postoperative day 3 (as described in Matthews JN, Altman DG, Campbell MJ, Royston P. Analysis of serial measurements in medical research. Bmj 1990;300:230-5). L-FABP area under curve from start of surgery up until postoperative day 3 No
Secondary Post-resectional Complications morbidity and mortality occuring after liver surgery graded according to Clavien-Dindo's grading system. In short, any deviation from the postoperative course without the need for pharmacological, radiological or surgical intervention was classified as Clavien-Dindo grade 1; complications requiring pharmacological treatment were graded as grade 2; complications requiring surgical or radiological intervention not under general anesthesia as grade 3a and under general anesthesia as grade 3b; grade 4 complications were life-threatening complications requiring intensive care unit care because of single organ dysfunction (grade 4a) or multiple organ dysfunction (grade 4b); mortality was classed as grade 5. within 90-days after initial liver surgery No
Secondary Amount of Blood Loss amount of blood in the suction container (and, if applicable, in the weighted gauzes) at the end of liver surgery, an average of 225 minutes No
Secondary Hepatocellular Damage Reflected by Alanine Aminotransferase (ALAT) Levels At specific time points before, during and after liver surgery, plasma samples will be obtained to analyse the amount of hepatocellular damage reflected by ALAT level. These timepoints include: baseline (before operation), just before intermittent pedicle clamping, just before end of 15 or 30 minutes pedicle clamping, end of 5 minutes reperfusion, end of liver surgery, 8 hours after start liver surgery, postoperative day 1, 2 and 3. ALAT area under curve from start of surgery up until postoperative day 3 No
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