An asymptomatic double-chambered left ventricle diagnosed by contrast-enhanced ultrasound imaging: A case report.

RATIONALE

The double-chambered left ventricle (DCLV) is a rare congenital heart disease and is separated into 2 chambers by abnormally hypertrophied bundles of muscle or fibrous strips. Differential diagnoses, especially diverticulum, aneurysms and large ventricular septal defect are sometimes difficult.

PATIENT CONCERNS

A 33-year-old woman was admitted to the hospital to undergo abortion without any discomfort such as palpitation, chest tightness, shortness of breath and etc. The electrocardiogram reported a suspicious left anterior branch block and extensive anterior wall R-wave incremental dysplasia. The transthoracic echocardiography showed a bilayer structure of the ventricular septum with a continuity interruption visible on the left ventricular surface, and the color doppler flow imaging showed a low velocity bidirectional flow at this continuity interruption, communicated with the left ventricular cavity.

DIAGNOSES

Final diagnosis of DCLV was confirmed by contrast-enhance ultrasound imaging.

INTERVENTIONS

The patient was discharged without any special treatment of the heart after the abortion.

OUTCOMES

The patient did not complain of any special discomfort after the 3, 6, and 9 months of outpatient follow-ups.

LESSONS

This case highlights the necessity of contrast-enhance ultrasound imaging, which plays an important role in improving the accuracy of DCLV diagnosis and in differentiating it from other diseases.