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Diffusion of Use of Low Molecular Weight Heparin for Thrombosis on the Medicine Services

Information source: University of Chicago
ClinicalTrials.gov processed this data on August 20, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Thrombosis

Intervention: Observation (Behavioral)

Phase: N/A

Status: Active, not recruiting

Sponsored by: University of Chicago

Official(s) and/or principal investigator(s):
David Meltzer, M.D., Ph.D., Principal Investigator, Affiliation: University of Chicago

Summary

The purpose of this research is to gain insight into the way in which physicians adopt new practice techniques. In particular, we are interested in how medical innovations diffuse throughout social networks. We wish to examine the diffusion of Low Molecular Weight Heparin (LMWH) use for Deep Vein Thrombosis (DVT) throughout the social network of general internal medicine interns, residents, and attendings at the University of Chicago Hospital. In numerous clinical trials, LMWH has been demonstrated to be as effective as unfractionated heparin as a bridge to long-term anticoagulation therapy with Coumadin, with the added benefit of early discharge from the hospital with easy dosing, no need for monitoring, and home therapy. A DVT critical pathway was established at the U of C in 1998, and LMWH was used off-label for that purpose beginning in 1997. However, it is unclear how quickly the use of LMWH was adopted by the physicians on the general medicine services, or whether there exists a pattern for this adoption.

Clinical Details

Official title: Diffusion of Use of Low Molecular Weight Heparin for Thrombosis on the Medicine Services

Study design: Observational Model: Cohort, Time Perspective: Retrospective

Primary outcome: retrospective chart review to determine how patients with deep venous thromboses or pulmonary emboli were treated when hospitalized on the medicine services

Detailed description: The design of our study is retrospective in nature. We are interested primarily in the use of LMWH in patients admitted to the general medicine services between January 1, 1997 and February 1, 2001 with a primary and secondary diagnosis related to Venous Thromboembolism, including specific ICD-9 codes. Using a data abstraction form, we gather the following information: 1) patient demographics, 2) identity of the attending, resident, and interns caring for the patient, 3) whether the patient had any absolute or relative contraindications for receiving LMWH, as delineated by the DVT critical pathway, including insurance status and 4)how the patient was treated for his/her condition. To examine whether the identity of the primary care physician affects whether LMWH is given, we also collect the name of the primary care physician if it is listed on the chart.

Eligibility

Minimum age: 18 Years. Maximum age: N/A. Gender(s): Both.

Criteria:

Inclusion Criteria:

- Patients admitted to General Medicine Services with a primary or secondary diagnosis

related to venous thromboembolism Exclusion Criteria:

- Non-General Medicine Services patients

Locations and Contacts

The University of Chicago, Chicago, Illinois 60637, United States
Additional Information

Starting date: February 2001
Last updated: September 4, 2013

Page last updated: August 20, 2015

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