ATRIAL ISOMERISM PDF

ATRIAL ISOMERISM PDF

Right atrial isomerism or left atrial isomerism is frequently diagnosed as situs ambiguous without further discrimination of the specific morbid anatomy. Thirty six. OMIM: Right atrial isomerism is a severe complex congenital heart defect resulting from embryonic disruption of proper left-right axis determination. Abstract. Objectives. We sought to determine, in a large series of patients with right atrial isomerism, factors associated with mortality. Background. Right atrial.

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Right atrial atriall or left atrial isomerism is frequently diagnosed as situs ambiguous without ixomerism discrimination of the specific morbid anatomy. Thirty six cases of right atrial isomerism and seven cases of left atrial isomerism were collected from the records and pathological museum at the National Taiwan University Hospital. There was a necropsy report for 18 cases. In all patients one or more of the following conditions was met: Forty per cent of cases of anomalous pulmonary venous connection with right atrial isomerism had obstruction.

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A common atrioventricular valve was the most frequent mode of connection in both forms. Two discrete atrioventricular valves were significantly more common in left atrial isomerism.

Atrioventricular valve regurgitation was detected in 14 cases. Double outlet right ventricle was the most common type of ventriculoarterial connection.

Clinical implications of atrial isomerism.

The most commonly cited causes of death after either palliative or definitive operation were undetected anomalous pulmonary venous connection, pulmonary venous stricture, and uncorrected atrioventricular valve or aortic regurgitation complicated by abnormal coagulation. Although the prognosis is poor, successful operation depends on knowledge of the precise anatomical arrangement associated with atrial isomerism.

National Center for Biotechnology InformationU. Journal List Br Heart J v. Author information Copyright and License information Disclaimer. This article has been cited by other strial in PMC. Abstract Right atrial isomerism or left atrial isomerism is frequently diagnosed as situs ambiguous without further discrimination of the specific morbid anatomy.

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Isomerism of the cardiac atria in the asplenia syndrome. Syndromes of asplenia and polysplenia.

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A review of cardiac and non-cardiac malformations in 60 cases withspecial reference to diagnosis and prognosis. Congenital cardiac disease associated with polysplenia.

OMIM Entry – # – RIGHT ATRIAL ISOMERISM; RAI

A developmental complex of bilateral “left-sidedness”. Morphological considerations pertaining to recognition of atrial isomerism. Consequences for sequential chamber localisation.

Use of high kilovoltage filtered beam radiographs for detection of bronchial situs in infants and young children. The radiographic appearance of the tracheobronchial tree as an indicator of visceral situs.

Diagnosis and significance of atrial isomerism.

Two dimensional echocardiographic diagnosis of situs. Assessment of total anomalous pulmonary venous connection by two-dimensional echocardiography. Associated Data Supplementary Materials.

Clinical implications of atrial isomerism.

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