5 List of papers 7 Abbreviations 7 Introduction 8 Embryology 8 Genetics 10 Anatomy of the atrial septum 10 Classifications of shunt lesions at the atrial level 11 Incidence of atrial septal defect 13 Haemodynamics 15 Quantification of shunts – methodological aspects 19 Natural history 24 Clinical presentation 25 Atrial septal defect and pulmonary hypertension 26 Atrial septal defect and atrial ...

  Cor triatriatum is an acyanotic congenital heart disease. We present a rare case of cor triatriatum sinistrum in a 6-month-old female infant who was presented with cyanosis and failure to thrive. The 2D transthoracic echocardiography and the Doppler color flow imaging showed a proximal venous chamber communicating to the distal left atrium  through restrictive opening to the low-pressure, dis...

PURPOSE For the successful completion of transcatheter closure of atrial septal defects with the Amplatzer septal occluder, shape of the defects should be considered prior to selecting the device. The purpose of this study is to evaluate the results of a transcatheter closure of oval shaped atrial septal defect. MATERIALS AND METHODS From November 2009 until November 2011, cardiac computed to...

OBJECTIVES The aim of this study is to evaluate our clinical experience using an Amplatzer septal occluder for catheter closure of a secundum atrial septal defect under transthoracic echocardiography guidance without general anaesthesia. METHODS Patients eligible for transcatheter atrial septal defect closure were selected using transthoracic echocardiography. The largest defect diameter meas...

Background: Congenital heart disease is the most common type of maternal abnormality and is the leading cause of mortality in the first year of life. The aim of this study was to determine the epidemiological and related factors of congenital heart disease (CHD) in children referred to the pediatric heart clinic of Vali-e-Asr Hospital of Birjand, Iran. <e...

UNLABELLED The case report of a 15-year-old patient with an unusual form of atrial septal defect is described. Echocardiography showed separation of the secundum and primum atrial septums due to abnormal posterior and leftward attachment of the primum septum into the roof of the left atrium. The morphology has been variably described as a 'double' atrial septum or 'spiral' atrial septal defect....

RATIONALE Iatrogenic atrial septal defects caused by cardiac surgery are rare complications that are traditionally repaired through reoperations; unfortunately, reoperations are accompanied by high risk and trauma. PATIENT CONCERNS Herein, we report a rare case of a huge atrial septal defect after mitral and aortic mechanical valve replacement. DIAGNOSES Transesophageal echocardiography rev...

A 3-week-old female white Bengal Tiger cub (Panthera tigris tigris) presented with acute onset tachypnoea, cyanosis and hypothermia. The cub was severely hypoxaemic with a mixed acid-base disturbance. Echocardiography revealed severe pulmonic stenosis, right ventricular hypertrophy, high membranous ventricular septal defect and an overriding aorta. Additionally, an atrial septal defect was foun...