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Case Reports
. 2024 Nov 26;16(11):e74531.
doi: 10.7759/cureus.74531. eCollection 2024 Nov.

Acute Mitral Regurgitaion Initially Misdiagnosed As Pneumonia: A Case Report

Yoshito Sugi  1 , Kazuaki Nishida  2 , Tetsuro Ishida  2 , Go Inoue  3 , Takushi Fujimoto  2
Affiliations
Case Reports

Acute Mitral Regurgitaion Initially Misdiagnosed As Pneumonia: A Case Report

Yoshito Sugi et al. Cureus. .

Abstract

Heart failure due to acute mitral regurgitation (MR) may present with atypical findings on physical examination and transthoracic echocardiography (TTE), making the diagnosis difficult. A 72-year-old male was transferred to our hospital with severe cardiorespiratory failure and was initially suspected to have severe pneumonia based on the acute onset and imaging findings. The patient was eventually diagnosed with acute heart failure secondary to MR. Acute MR can be a fatal disease; clinicians should consider it in the setting of severe respiratory and circulatory failure as it can mimic severe pneumonia and acute respiratory distress syndrome (ARDS).

Keywords: acute mitral regurgitation; cardiorespiratory failure; diagnosis; echocardiography; heart failure.

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Conflict of interest statement

Human subjects: Consent for treatment and open access publication was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work.

Figures

Figure 1
Figure 1. Chest radiography showed extensive frosted shadows in bilateral lung fields with no evidence of cardiac enlargement (cardiothoracic ratio, 48%).
Figure 2
Figure 2. Electrocardiography showed no ST-segment changes and only a right bundle branch block.
See this image and copyright information in PMC

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