Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...

Alternative Surgical Policy for Central Liver Tumors

This study has been completed.
Information provided by:
University of Milan Identifier:
First received: January 14, 2008
Last updated: NA
Last verified: January 2008
History: No changes posted

January 14, 2008
January 14, 2008
January 2004
January 2007   (Final data collection date for primary outcome measure)
The primary outcome measure was the rate of failure of conservative resection, i.e. the rate of patients who received TSs or MHs despite they fitted in the eligibility criteria. [ Time Frame: January 2007 ]
Same as current
No Changes Posted
The secondary outcome measure was the safety of the procedure. For that, we studied morbidity, mortality, amount of blood loss, rate of blood transfusions, and postoperative trend of liver function tests. [ Time Frame: January 2007 ]
Same as current
Not Provided
Not Provided
Alternative Surgical Policy for Central Liver Tumors
Ultrasound-Guided Conservative Heopatecomy for Tumors Invading the Middle Hepatic Vein at the Caval Confluence as Alternative to Mesohepatectomy and Trisectionectomy
Major hepatectomies have not negligible morbidity and mortality. However, when tumors invade middle hepatic vein (MHV) at caval confluence major surgery is usually recommended. Ultrasound-guided hepatectomy might allow conservative approaches. We prospectively check its feasibility in a series of patients carriers of tumors invading the MHV at the caval confluence.
Major hepatectomies have not negligible morbidity and mortality. However, when tumors invade middle hepatic vein (MHV) at caval confluence trisectionectomy (TS) is generally performed, and central hepatectomy or mesohepatectomy (MH) (Segments 4, 5 and 8), is considered by some authors to be the conservative alternative to the previously cited approach. Between these two surgical interventions there is not, up to now, any evidence that one of them should be clearly preferred; anyway both are mojor resections. We previously reported that a surgical approach based on ultrasound-guided hepatectomy might minimize the need for major resection, whose rates of morbidity and mortality are not negligible. This policy could be useful also for disclosing new, more conservative, and better tolerated approaches for tumors invading the MHV at caval confluence in alternative to MH and TS. This study analyses the feasibility, safety and effectiveness of ultrasound-guided resections applied to these patients enrolled prospectively from a cohort of consecutive patients who undergo hepatectomy for tumors.
Observational Model: Cohort
Time Perspective: Prospective
Not Provided
Not Provided
Non-Probability Sample
Patients carriers of hepatocellular carcinoma or colorectal cancer liver metastases addressed to surgical resection
  • Colorectal Liver Metastases
  • Hepatocellular Carcinoma
Procedure: Ultrasound-guided hepatectomy

After laparotomy and staging by intraoperative ultrasound (IOUS), anterior surface of the hepatocaval confluence is exposed. Than, compression by means of the surgeon's finger-tip is applied at the MHV caval confluence verifying at color-Doppler IOUS the disappearance of the blood flow in the MHV or its inversion. Then, MHV clamping itself is carried out, and parenchymal sparing resection would be selected if at least one of these 3 findings is confirmed:

  1. Reversal color-Doppler IOUS flow direction in the peripheral portion of the MHV, which suggests the drainage through collateral circulation in the RHV/LHV depending on the side of the MHV branch with reversal flow.
  2. Detectable shunting collaterals at color-Doppler IOUS with RHV or LHV.
  3. Hepatopetal flow in P5-8 and/or P4inf portal branches. If none of these finding is confirmed and in particular hepatofugal flow direction in the P5-8 and/or P4 inf is detected the hepatectomy has to be extended.
Patients selected for hepatectomy because carriers of hepatocellular carcinoma or colorectal cancer liver metastases invading the middle hepatic vein at caval confluence (last 4 cm).
Intervention: Procedure: Ultrasound-guided hepatectomy

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
May 2007
January 2007   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Patients carriers of HCC or colorectal cancer liver metastases (CLM) who have macroscopic signs of vascular invasion (preoperative imaging and/IOUS) of the MHV close to the hepato-caval confluence (within 4 cm) demanding for that MHV resection.

Minimum follow-up for patients' inclusion was established at 6-months from surgery.

Exclusion Criteria:

  • Patients carriers of tumors occupying entirely the right paramedian section and the segment 4, for whom at least a MH would have been compulsorily carried out.
Sexes Eligible for Study: All
Child, Adult, Senior
Contact information is only displayed when the study is recruiting subjects
Not Provided
Not Provided
Not Provided
Prof. Guido Torzilli, University of Milan - Istituto Clinico Humanitas, IRCCS
University of Milan
Not Provided
Principal Investigator: Guido Torzilli, MD, PhD University of Milan, Istituto Clinico Humanitas - IRCCS
University of Milan
January 2008

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP