Preprint Case Report Version 1 Preserved in Portico This version is not peer-reviewed

Case Report: Two Case Reports of Acute Pulmonary Hypertension After mRNA COVID-19 Vaccine

Version 1 : Received: 7 August 2023 / Approved: 8 August 2023 / Online: 8 August 2023 (11:53:56 CEST)

A peer-reviewed article of this Preprint also exists.

Sullivan, R.D.; Shults, N.V.; Suzuki, Y.J. Case Report: Two Case Reports of Pulmonary Hypertension after mRNA COVID-19 Vaccination. Diseases 2023, 11, 114. Sullivan, R.D.; Shults, N.V.; Suzuki, Y.J. Case Report: Two Case Reports of Pulmonary Hypertension after mRNA COVID-19 Vaccination. Diseases 2023, 11, 114.

Abstract

Background: To our knowledge, the sudden onset of symptomatic pulmonary hypertension after COVID-19 vaccination has not been described. Both cases presented here resulted in functional limitations and likely permanent organ damage. Case Summary: We report two cases of acute onset pulmonary hypertension in previously healthy adult males within three weeks of receiving the second dose of the Pfizer (BNT162b2) mRNA COVID-19 vaccine from different lots. Both patients experienced the sudden onset of severe fatigue and dyspnea on exertion with negative COVID-19 PCR testing. The diagnosis was made by serial transthoracic echocardiography in the first case and by both transthoracic echocardiography and right heart catheterization in the second. Discussion: Pulmonary hypertension is a serious disease characterized by damage to lung vasculature and restricted blood flow through narrowed arteries from the right to left heart. The onset of symptoms is typically insidious, progressive and incurable, leading to right heart failure and premature death. The World Health Organization (WHO) classifies pulmonary hypertension into 5 categories and recently re-defined as a resting mean pulmonary artery pressure greater than 20 mmHg. Sudden onset pulmonary hypertension would only be expected in the settings of surgical pneumonectomy or massive pulmonary emboli with compromise of at least 50% of the lung vasculature.

Keywords

case report; COVID-19; mRNA; pulmonary hypertension; vaccine

Subject

Medicine and Pharmacology, Pulmonary and Respiratory Medicine

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