Clinical Spectrum of Young-onset Hypertension: Diverse Etiologies, Target-organ Damage, and Diagnostic Challenges – A Seven-case Series

Abstract Young-onset hypertension – defined as sustained blood pressure elevation presenting before the age of 40 years – is increasingly encountered in tertiary care settings in India. Unlike hypertension in older adults, it frequently harbors secondary etiologies, presents with severe target-organ damage, and poses considerable diagnostic challenges. This case series illustrates the clinical heterogeneity of the condition and highlights the importance of systematic evaluation in this population. We report seven cases (age range 19–38 years; six males, one female) presenting to a tertiary care teaching hospital. Secondary etiologies included biopsy-proven focal segmental glomerulosclerosis with nephrotic-range proteinuria (Case 1), bilateral ostial renal artery stenosis complicated by heart failure with reduced ejection fraction (Case 2), and hypertension associated with erythrocytosis under evaluation (Case 6). Hypertensive emergency with acute ischemic stroke and hemorrhagic transformation, complicated by hypertensive dilated cardiomyopathy, occurred in Case 7. Essential hypertension was established in Cases 3-5, with end-organ manifestations including hypomagnesemia-induced ventricular premature complexes (Case 4) and hypertensive retinopathy (Case 5). Diagnostic investigations included renal biopsy, renal Doppler ultrasonography, renal angiography, 24-h Holter monitoring, serum erythropoietin assay, and brain magnetic resonance imaging. Individualized antihypertensive regimens were supplemented by disease-specific interventions. Outcomes ranged from clinical stabilization to partial neurological recovery, reflecting the variable prognosis associated with delayed diagnosis and inadequate treatment. Young-onset hypertension is not a uniformly benign or essential condition. Systematic evaluation for secondary causes and comprehensive assessment of target-organ damage are critical, particularly in resource-limited settings where these steps are frequently deferred.