Secondary Hypertension Causes

Introduction to Secondary Hypertension

The European Society of Cardiology notes that renal parenchymal disease is the most frequent cause of secondary hypertension, identifiable by history of urinary infections, obstruction, hematuria, nocturia, analgesic abuse, or family history of polycystic kidney disease 1, 2
The American Heart Association recommends considering renal parenchymal disease as a primary cause of secondary hypertension, with a prevalence of approximately 2% in hypertensive adults, increasing significantly in certain populations, reaching 5-34% in patients with resistant hypertension 1, 2, 3

The European Society of Cardiology suggests that ultrasound is the first-line examination for diagnosing renal causes of secondary hypertension, providing necessary anatomical data on kidney size, cortical thickness, urinary tract obstruction, and renal masses 1
The American Heart Association recommends essential laboratory tests, including serum creatinine with eGFR calculation, urine analysis with albumin-to-creatinine ratio, and blood electrolytes 2

The American Heart Association notes that the following elements strongly suggest renal parenchymal disease as a cause of secondary hypertension: elevated serum creatinine with abnormal urine analysis, urinary frequency and nocturia, history of recurrent urinary infections or obstruction, hematuria, and palpable abdominal mass (polycystic kidney disease) 1, 2

The European Society of Hypertension states that renovascular disease is the second most frequent cause of secondary hypertension, with a prevalence of approximately 2% in hypertensive adults, increasing significantly in certain populations, reaching 5-34% in patients with resistant hypertension 1, 2, 3
The American Heart Association reports that primary hyperaldosteronism affects 8-20% of patients with resistant hypertension, making it an important but less frequent cause than renal diseases in the general hypertensive population 2, 4