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Case management for patients with poorly controlled diabetes: a randomized trial
Sarah L Krein1, Mandi L Klamerus, Sandeep Vijan
1VA Health Services Research and Development Center for Practice Management and Outcomes Research, Ann Arbor, Michigan 48113-0170, USA. Sarah.Krein@med.va.gov
The American Journal of Medicine
|May 18, 2004
Summary
Collaborative case management for poorly controlled type 2 diabetes did not improve glycemic control or cardiovascular markers. However, this intervention significantly enhanced patient satisfaction with their diabetes care.
Area of Science:
- Endocrinology
- Cardiology
- Health Services Research
Background:
- Type 2 diabetes management requires effective strategies to improve glycemic control and cardiovascular outcomes.
- Poorly controlled diabetes poses significant risks for long-term complications.
Purpose of the Study:
- To assess the impact of collaborative case management on glycemic control (HbA1c), intermediate cardiovascular outcomes, patient satisfaction, and resource utilization in veterans with type 2 diabetes.
- To determine if a structured intervention improves outcomes compared to usual care.
Main Methods:
- A randomized controlled trial involving 246 veterans with poorly controlled type 2 diabetes (HbA1c >or=7.5%).
- Intervention group received 18 months of collaborative case management by nurse practitioners, including telephone monitoring, goal setting, and treatment algorithms.
- Control group received standard educational materials and usual primary care.
Main Results:
- No significant differences were observed in mean exit HbA1c levels between the case management and control groups (9.3% vs. 9.2%, P=0.65).
- The intervention did not lead to improvements in low-density lipoprotein cholesterol, blood pressure control, or medication intensification.
- Patients in the case management group reported significantly higher satisfaction with their diabetes care (82% vs. 64%, P=0.04).
Conclusions:
- Collaborative case management did not improve key physiological outcomes in high-risk type 2 diabetes patients.
- Factors such as patient selection, organizational context, and program design are crucial for case management effectiveness.
- Health systems should carefully consider potential limitations and the uncertainty of outcome improvements and cost savings before widespread implementation of case management programs.