Strokes leads to significant morbidity and mortality, and hypertension is the most important risk factor for strokes. It is estimated that up to 10% of patients with hypertension have the underlying, treatable condition of primary aldosteronism. Hence, we hypothesize that the prevalence of primary aldosteronism is high in patients with strokes, a complication of long-standing hypertension.

Patients admitted with an acute stroke to the Acute Stroke Unit, Changi General Hospital, will be screened for Primary Aldosteronism three months post-stroke, and confirmatory tests will be done with saline-infusion test.

Inclusion Criteria:

1. Age 21-80 years
2. Admitted with acute cerebrovascular accident (CVA) or transient ischemic attack (TIA) to the ASU, CGH
3. Patients with both ischemic and hemorrhagic strokes

Exclusion Criteria:

a. Pregnant patients

Prospective study to evaluate the prevalence of primary aldosteronism in patients with an acute stroke. 300 patients admitted with CVA/TIA will be enrolled into the study.