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Mobin-Uddin umbrella filters effectively prevent pulmonary emboli in high-risk patients. Caval patency was maintained with Coumadin, showing minimal residual venous stasis and no treatment-related deaths.
Area of Science:
- Vascular Surgery
- Cardiology
- Interventional Radiology
Background:
- Pulmonary embolism (PE) is a significant cause of morbidity and mortality.
- Inferior vena cava (IVC) filters are used to prevent PE in patients at high risk.
- The Mobin-Uddin umbrella filter is one such device used for caval interruption.
Purpose of the Study:
- To evaluate the safety and efficacy of the Mobin-Uddin umbrella filter.
- To assess outcomes in patients undergoing caval filter insertion for various indications.
- To determine the long-term patency and complication rates associated with the device.
Main Methods:
- A retrospective review of 56 patients who received Mobin-Uddin umbrella filters over seven years.
- Indications for filter placement included shock and large venous clots, with most patients in Greenfield's Class IV.
- All patients received heparin prophylaxis before and after filter insertion; some received long-term Coumadin therapy.
Main Results:
- No deaths occurred during the study period.
- A few complications were noted, but the overall safety profile was favorable.
- Caval patency was maintained throughout follow-up in patients treated with Coumadin.
- Minimal residual venous stasis was observed in the legs post-procedure.
Conclusions:
- The Mobin-Uddin umbrella filter is a simple and effective method for preventing pulmonary emboli.
- Long-term anticoagulation with Coumadin appears to promote caval patency after filter placement.
- The device demonstrates a favorable safety profile with no treatment-related mortality.
Abstract:
Umbrella filters have been inserted in 56 patients over the last seven years. Indications varied from shock to a huge clot in the major veins. Most of the patients were in Greenfield's Class IV. All were treated with heparin before and after caval filter insertion. There were no deaths, but there were a few complications. the cava were patent during the follow-up period in patients who were on Coumadin therapy. Minimal residual venous stasis was noticed in the legs. The Mobin-Uddin umbrella in a simple and effective means of prevention of pulmonary emboli.