Hypertension in the elderly.

OBJECTIVE

To study the clinical profile of hypertension in the elderly, development of end organ complications and the effect of hypertension with other risk factors in producing these complications.

METHODS

One hundred and thirty six elderly patients attending the Hypertension Clinic were included in the study. A detailed history was taken that included presenting illness, family history of hypertension, diabetes, coronary artery disease, dyslipidaemia and history of addictions. Physical examination included systemic examination with measurement of waist to hip ratio and fundoscopy for retinopathy. Renal and liver function tests (RFT, LFT), blood sugar, lipid profile, X-ray chest, electrocardiography (ECG), 2-D echocardiography, abdominal ultrasound and computed tomography (CT) scan head (if indicated) were other important investigations done.

RESULTS

Seventy-nine patients were in the age group of 60-65 years, of which 42 (30.9%) were males. Headache was the commonest chief complaint in 77.9% patients; whereas 24 patients were asymptomatic. Obesity, diabetes, alcohol, dyslipidaemia and family history were important determinants of hypertension. Lipid profile was abnormal in 55.9% patients. Isolated systolic hypertension (ISH) was found in 56.6% patients. Grade II hypertensive retinopathy was observed in 29.4% patients with uncontrolled blood pressure. Left ventricular hypertrophy (LVH) was the commonest ECG manifestation seen in 36.8% patients of which 26.5% had uncontrolled blood pressure. LVH could be diagnosed in 46.4% patients by 2-D echo. Patients with uncontrolled blood pressure and ISH had increased incidence of cardiovascular and cerebrovascular complications. Cardiovascular complications were seen in 19.1% patients having dyslipidaemia and hypertension. Cerebrovascular complications were seen in 15.4% patients having hypertension with LVH. Treatment included calcium channel blockers and/or other drugs.

CONCLUSIONS

The elderly hypertensive patients tend to have ISH. Family history of hypertension is an important determinant of hypertension. Uncontrolled hypertension, ISH, LVH and other associated risk factors are responsible for cardiovascular and cerebrovascular morbidity.