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Serendipitous diagnosis of aortic coarctation by bilateral parvus et tardus renal Doppler flow pattern

Mohammad Kazem Tarzamni1, Nariman Nezami, Mohammad Reza Ardalan

  • 1Department of Radiology, Tabriz University of Medical Sciences, Tabriz, Iran. Tarzamni@yahoo.com

Cardiovascular Ultrasound
|November 28, 2007
PubMed

Insights

Aortic coarctation can be suspected in young hypertensive patients with a specific bilateral renal artery Doppler flow pattern. This "parvus-tardus" pattern may aid in early diagnosis of this uncommon condition.

Area of Science:

  • Cardiovascular Medicine
  • Diagnostic Imaging
  • Pediatric Cardiology

Background:

  • Aorta coarctation (AC) is a rare congenital defect often asymptomatic in adults.
  • Diagnosis typically relies on detecting blood pressure discrepancies between the arms and legs during physical exams.

Observation:

  • This study investigated a novel renal artery Doppler flow pattern in four young patients with secondary arterial hypertension.
  • Patients were referred for renal Doppler ultrasonography (DU) to exclude renovascular hypertension.

Findings:

  • All four patients (aged 10-27 years) exhibited a bilateral "parvus-tardus" renal Doppler flow pattern.
  • Subsequent echocardiography and angiography confirmed the presence of aortic coarctation in all cases.

Implications:

  • A bilateral renal arteries "parvus-tardus" Doppler flow pattern can be a key indicator for suspecting aortic coarctation.
  • This finding suggests that renal artery Doppler ultrasonography may play a crucial role in diagnosing AC in young hypertensive individuals.
  • Enhanced physical examination and targeted imaging are vital for managing hypertensive patients, especially younger demographics.
Abstract

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