HbA1c measurement and relationship to incident stroke.

Area of Science:

• Cardiology
• Endocrinology
• Public Health

Background:

• Diabetes mellitus is a chronic condition requiring regular monitoring.
• Stroke is a significant cardiovascular event that can impact diabetes management.
• Glycemic control, measured by HbA1c, is crucial for preventing diabetes complications.

Purpose of the Study:

• To determine the frequency of HbA1c testing in patients with diabetes who have had a stroke.
• To assess the proportion of patients achieving target HbA1c levels (< 58 mmol/mol).
• To evaluate changes in HbA1c levels in the year before and after a stroke.

Main Methods:

• Utilized the Secure Anonymised Information Linkage (SAIL) databank in Wales.
• Identified 1741 patients with diabetes and stroke, matched against 16,838 controls.
• Assessed HbA1c testing frequency and levels before and after stroke events.

Main Results:

• HbA1c testing was more frequent in stroke patients (67.4% pre-stroke, 65.3% post-stroke) compared to controls.
• In patients with diabetes and stroke, HbA1c levels decreased significantly from 61 to 56 mmol/mol post-stroke.
• The proportion of patients achieving HbA1c < 58 mmol/mol increased post-stroke.

Conclusions:

• Stroke patients with diabetes undergo more frequent HbA1c monitoring.
• Glycemic control demonstrably improves in the year following a stroke.
• These findings highlight the importance of monitoring diabetes management post-stroke.