Extreme Malignant Hypertension Resulting in Dialysis-Dependent Hypertensive Nephrosclerosis.

BACKGROUND

Malignant hypertension is a life-threatening condition characterized by severe blood pressure elevation with acute target-organ damage, requiring prompt but controlled management.

CASE SUMMARY: A 56-year-old woman presented with headache was found to have extreme hypertension. Despite repeated automated and manual measurements, blood pressure remained markedly elevated, prompting arterial line placement, which confirmed a blood pressure of 327/149 mm Hg. Secondary causes of hypertension were excluded. The patient was treated with intravenous nicardipine, followed by transition to maximally titrated oral antihypertensives.

DISCUSSION: Although hypertensive emergencies are well described, arterial line-confirmed blood pressures exceeding 320 mm Hg are exceedingly rare. This case highlights the importance of accurate blood pressure measurement, guideline-directed blood pressure reduction, and the devastating renal consequences of untreated hypertension.

TAKE-HOME MESSAGES: Accurate confirmation of extreme blood pressure values and controlled, guideline-directed reduction are essential to prevent ischemic complications in malignant hypertension. Successful management of malignant hypertension requires coordinated multidisciplinary care, continuous monitoring, and adherence to evidence-based blood pressure reduction strategies.