HYPERTENSION AND THE KIDNEY
Most physicians, consider the blood pressure above 140/90 mmHg
in patients under the age of 50 years as hypertension thus deserves
treatment.
Etiology And Classification Of Hypertension:
Hypertension, according to severity and target organ damage (of
retina, kidney, heart) could be classified into benign or malignant.
Etiologically, hypertension may be classified as essential (primary) or
secondary.
Secondary hypertension may be:
1- Renal:
a- Renovascular hypertension:
- Renal artery stenosis
- Polyarteritis nodosa
- Renal artery aneurysm
- Renal artery malformation
b- Renoparenchymal:- Glomerulonephritis
- Polycystic kidney disease
• Schistosomal nephropathy ..............................................
- Renal tumour as Wilms' tumour
- Other renal parenchymal diseases