A Comparative Study of Prophylactic Anticoagulation in Meningioma Surgery

NCT ID: NCT01941602

Last Updated: 2017-10-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

979 participants

Study Classification

OBSERVATIONAL

Study Start Date

2013-08-31

Study Completion Date

2015-10-31

Brief Summary

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The aim of the study is to compare different strategies for prevention of venous thromboembolism related to intracranial meningioma surgery. The investigators identified three hospitals where two have a very restrictive approach with respect to anticoagulant therapy while at the third hospital the use of anticoagulation the day before surgery was initiated as routine prophylaxis.

Based on this "natural experiment" it will be explored whether the use of anticoagulant prophylaxis is associated with reduced risk of venous thromboembolism and/or associated with increased risk of postoperative hemorrhage as compared to the 2 cohorts where this intervention were absent.

Detailed Description

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Conditions

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Meningioma

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

RETROSPECTIVE

Study Groups

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prophylactic

Prophylactic treatment with drugs to prevent venous thromboembolism in patients operated with open surgery for intracranial meningioma at the Department of neurosurgery at Karolinska Hospital, Stockholm, Sweden

prophylactic enoxaparin

Intervention Type DRUG

enoxaparin had been prescribed at a dose of 40 mg (once daily) from the evening before surgery until patients were well mobilized. Also, at the time of surgery compression stockings were used, as well as a sequential compression device (SCD) until the morning after or longer if mobilization was delayed

non-prophylactic

No use of prophylactic treatment with drugs to prevent venous thromboembolism in patients operated with open surgery for intracranial meningioma at the Departments of neurosurgery at University Hospital North Norway (UNN) and St.Olavs University Hospital (Tromsø and Trondheim respectively, both Norway)

non-prophylactic

Intervention Type PROCEDURE

no pharmacological prophylaxis for venous thromboembolism (VTE) had been used routinely. Occasionally, with delayed mobilization, a low-dose low molecular weight heparin (LMWH) had been prescribed. SCD had been used at increased frequency, and is today considered routine.

Interventions

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prophylactic enoxaparin

enoxaparin had been prescribed at a dose of 40 mg (once daily) from the evening before surgery until patients were well mobilized. Also, at the time of surgery compression stockings were used, as well as a sequential compression device (SCD) until the morning after or longer if mobilization was delayed

Intervention Type DRUG

non-prophylactic

no pharmacological prophylaxis for venous thromboembolism (VTE) had been used routinely. Occasionally, with delayed mobilization, a low-dose low molecular weight heparin (LMWH) had been prescribed. SCD had been used at increased frequency, and is today considered routine.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* First included patient 1.january 2007 and latest included patient 1.july 2013 (allows for 30 day follow up with respect to morbidity)
* Histological verification of a meningioma (of any grade) from the current surgery

Exclusion Criteria

* Intracranial surgery or venous thromboembolism the last 3 months
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Norwegian University of Science and Technology

OTHER

Sponsor Role collaborator

University Hospital of North Norway

OTHER

Sponsor Role collaborator

Karolinska University Hospital

OTHER

Sponsor Role collaborator

St. Olavs Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Lars Jacob Stovner, MD PhD

Role: STUDY_DIRECTOR

St. Olavs Hospital

Locations

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University Hospital of North Norway

Tromsø, , Norway

Site Status

St Olavs Hospital

Trondheim, , Norway

Site Status

Karolinska University Hospital

Stockholm, , Sweden

Site Status

Countries

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Norway Sweden

References

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Sjavik K, Bartek J Jr, Solheim O, Ingebrigtsen T, Gulati S, Sagberg LM, Forander P, Jakola AS. Venous Thromboembolism Prophylaxis in Meningioma Surgery: A Population-Based Comparative Effectiveness Study of Routine Mechanical Prophylaxis with or without Preoperative Low-Molecular-Weight Heparin. World Neurosurg. 2016 Apr;88:320-326. doi: 10.1016/j.wneu.2015.12.077. Epub 2015 Dec 31.

Reference Type RESULT
PMID: 26746334 (View on PubMed)

Other Identifiers

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2013/884

Identifier Type: -

Identifier Source: org_study_id