Incidence of Venous Thromboembolic Disease and Portal Vein Thrombosis After Hepatectomy. A Cohort Study.

August 9, 2019 updated by: Diego Hernan Giunta, MD, Hospital Italiano de Buenos Aires

Incidence of Venous Thromboembolic Disease and Portal Vein Thrombosis After Hepatectomy in a High-volume Center. A Cohort Study.

Observational. Retrospective cohort.

Study Overview

Detailed Description

Venous thromboembolism (VTE) is a disease that includes both deep vein thrombosis (DVT) and pulmonary embolism (PE). It is a common, potentially lethal disorder that can occur among postoperative patients. Liver surgery implies a prothrombotic state, as a result of an alteration of the equilibrium between synthesis and use of pro and anti coagulant factors after a parenquimal resection. The use of antithrombotic prophylaxis following surgery is not standarized, and current practices vary depending on the attendant surgeon's particular experience or hospital's customs and habits.

In published research, postoperative patients have been studied as a whole so far. There is little evidence regarding patients undergoing hepatectomy. Furthermore, the use and need of extended prophylaxis remains unexplored in this group of patients.

The objetives of the following study are:

  • To estimate the incidence of symptomatic venous thromboembolism (VTE) [deep vein thrombosis (DVT), pulmonary embolism (PE) and fatal PE] in a third level center in patients undergoing any hepatectomy within 90 days after surgery.
  • To estimate the incidence of portal thrombosis (PT) in a third level center in patients undergoing any hepatectomy within 90 days after surgery.
  • To identify and describe factors associated to the development of VTE in patients following hepatectomy.
  • To identify and describe factors associated to the development of PT in patients following hepatectomy.
  • To describe major bleedings or minor but clinically relevant bleedings during the period in which those patients received chemical thromboprophylaxis.

Study Type

Observational

Enrollment (Anticipated)

350

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Buenos Aires
      • Capital Federal, Buenos Aires, Argentina, 1170
        • Recruiting
        • Hospital Italiano de Buenos Aires
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients older than 18 years following hepatectomy of any kind for oncologic/non-oncologic disease between 04/09/2012 and 08/28/2015 were enrolled. Follow-up concluded 90 days after surgery or at occurence of event (Venous thromboembolism / portal thrombosis / death).

Description

Inclusion Criteria:

  • Older than 18 years old.
  • Following hepatic surgery.

Exclusion Criteria:

  • Living donor
  • Venous thromboembolism within 6 months previous to surgery.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Patients following hepatectomy

Patients following hepatectomy of any type, any gender. Roughly, we will describe: type of resection, presence of cancer,use of mechanical/pharmacological prophylaxis, major/minor bleedings ocurring during observation period.

Outcomes: Venous thromboembolism (VTE)[deep vein thrombosis (DVT) and pulmonary embolism (PE)] and portal thrombosis (PT).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Venous thromboembolism (VTE)
Time Frame: 90 days following surgery
Includes deep vein thrombosis (DVT) and pulmonary embolism (PE)
90 days following surgery

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Portal Thrombosis (PT)
Time Frame: 90 days following surgery
Portal thrombosis
90 days following surgery
Minor bleeding
Time Frame: 90 days following surgery
Any bleeding that doesn't fulfill "major bleeding" criteria.
90 days following surgery
Major bleeding
Time Frame: 90 days following surgery
Any bleeding causing: death, serious threat to life, requirement of active medical intervention, 2 or more red blood cell units transfusion, localized in retroperitoneum, intracraneal or intraocular
90 days following surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: Martín de Santibañes, Dr, Hospital Italiano de Buenos Aires

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2015

Primary Completion (Anticipated)

October 1, 2019

Study Completion (Anticipated)

February 1, 2020

Study Registration Dates

First Submitted

November 3, 2015

First Submitted That Met QC Criteria

November 3, 2015

First Posted (Estimate)

November 5, 2015

Study Record Updates

Last Update Posted (Actual)

August 13, 2019

Last Update Submitted That Met QC Criteria

August 9, 2019

Last Verified

August 1, 2019

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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