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Prenatal Diagnosis of Uhl Anomaly with Autopsy Correlation.

ABSTRACT: Uhl anomaly is a rare form of congenital hypoplasia of the right ventricular myocardium. Here, we report, a rare finding in fetal cardiac ultrasound in a 33-year-old woman who presented at 20 weeks' of gestation. A diagnosis of Uhl anomaly was made. An autopsy was performed at 23weeks gestation after obtaining permission for medicolegal termination of pregnancy. Histopathological examination confirmed the diagnosis. Diagnosing Uhl anomaly in fetal life is essential since mortality and survival mainly depend on the severity of right ventricle dysfunction related to, the either partial or complete absence of the myocardium. Hence, surviving cases need to be followed up carefully and counselled accordingly.

SUBMITTER: Philip S

PROVIDER: S-EPMC4737623 | biostudies-other | 2016 Mar

REPOSITORIES: biostudies-other

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Project description:BackgroundNew strategies for collecting post-mortem tissue are necessary, particularly in areas with emerging infections. Minimally invasive autopsy (MIA) has been proposed as an alternative to conventional autopsy (CA), with promising results. Previous studies using MIA addressed the cause of death in adults and children in developing countries. However, none of these studies was conducted in areas with an undergoing infectious disease epidemic. We have recently experienced an epidemic of yellow fever (YF) in Brazil. Aiming to provide new information on low-cost post-mortem techniques that could be applied in regions at risk for infectious outbreaks, we tested the efficacy of ultrasound-guided MIA (MIA-US) in the diagnosis of patients who died during the epidemic.Methodology/principal findingsIn this observational study, we performed MIA-US in 20 patients with suspected or confirmed YF and compared the results with those obtained in subsequent CAs. Ultrasound-guided biopsies were used for tissue sampling of liver, kidneys, lungs, spleen, and heart. Liver samples from MIA-US and CA were submitted for RT-PCR and immunohistochemistry for detection of YF virus antigen. Of the 20 patients, 17 had YF diagnosis confirmed after autopsy by histopathological and molecular analysis. There was 100% agreement between MIA-US and CA in determining the cause of death (panlobular hepatitis with hepatic failure) and main disease (yellow fever). Further, MIA-US obtained samples with good quality for molecular studies and for the assessment of the systemic involvement of the disease. Main extrahepatic findings were pulmonary hemorrhage, pneumonia, acute tubular necrosis, and glomerulonephritis. One patient was a 24-year-old, 27-week pregnant woman; MIA-US assessed the placenta and provided adequate placental tissue for analysis.ConclusionsMIA-US is a reliable tool for rapid post-mortem diagnosis of yellow fever and can be used as an alternative to conventional autopsy in regions at risk for hemorrhagic fever outbreaks with limited resources to perform complete diagnostic autopsy.

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Prenatal Diagnosis of Uhl Anomaly with Autopsy Correlation.

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