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Biomedical subjects

Lisa M Murphey

Publications and source records attributed to Lisa M Murphey.

2 recordsLinked to original sources

A comparison of diabetes care in rural and urban medical clinics in Alabama.

This study sought to determine the differences in the level of diabetes care of patients in a rural family practice clinic and an urban internal medicine clinic in Alabama. Medical records of patients with diabetes were reviewed and management practices were compared to current American Diabetes Association (ADA) standards of care. The rural practice had fewer patients at goal A1c, goal LDL, and goal blood pressure. Rural patients were also less likely to receive screening and preventative services such as lipid profiles, eye examinations, microalbumin screening, aspirin therapy, and vaccinations than urban patients. Although, adherence to the ADA standards of care was lower with rural patients, the results suggest that there exists significant opportunity to improve the delivery of diabetes care services to both patient populations.

Adolescent↗

Bosentan and warfarin interaction.

OBJECTIVE: To report a case of decreased international normalized ratio (INR) in a patient receiving warfarin and bosentan. CASE SUMMARY: A 35-year-old African American woman with a history of primary pulmonary hypertension managed with warfarin, diltiazem, and hydrochlorothiazide was initiated on bosentan therapy. The patient's INR had been stable and within therapeutic range (goal 2.0-3.0) for the previous 3 months with warfarin 27.5 mg/wk, but became subtherapeutic after 10 days of bosentan therapy. Addition of over-the-counter medications, herbal products, vitamins, or dietary changes was denied. The INR remained subtherapeutic for 5 weeks despite weekly warfarin dose increases. After these 5 weeks of dosage increases, the INR became supratherapeutic for 3 weeks, resulting in a subsequent dosage decrease. The resultant warfarin dose required to maintain a therapeutic INR was 45 mg/wk, a 63.6% dosage increase after the initiation of bosentan. DISCUSSION: This case shows that a clinically significant interaction between bosentan and warfarin may exist. An objective causality assessment revealed that the interaction was probable. Although the possibility of this interaction has been noted, no previously documented occurrence of this interaction has been identified. CONCLUSIONS: Bosentan may significantly decrease the anticoagulant properties of warfarin. The INR should be monitored more frequently when bosentan is initiated, adjusted, or discontinued in patients taking warfarin.

Adult↗