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28 Possible Causes for Hypoxia, Mesocardia, Normal Electrocardiogram

  • Scimitar Syndrome

    Figure 1 Preoperative Chest X-ray showed a dextroposition and mesocardia with scimitar vein.[] The electrocardiogram showed left axis deviation and chest X-ray revealed cardiomegaly with pulmonary plethora.[] Recurrent infection, especially when sequestration present Localized pulmonary haemorrhage with or without haemoptysis from systemic arterial supply Hypoxia from hypoplastic[]

  • Ebstein Malformation

    The electrocardiogram showed normal sinus rhythm, dilation of the right atrium and right bundle-branch block. The chest X-ray film showed a CTR 0.95 (Figure 1).[] The present case report illustrates fetal echocardiographic clues to the diagnosis that include mesocardia and apically displaced attachment of the left-sided atrioventricular[] […] raised concentration of circulating catecholamines in pregnancy will exacerbate any predisposition to arrhythmias; major arrhythmias may occur specifically during maternal hypoxia[]

  • Congenitally Uncorrected Transposition of the Great Arteries

    Asymptomatic women with unremarkable resting electrocardiograms, a normal exercise test, good left ventricular function and a pre-pregnancy aortic valve peak pressure drop[] […] descending branch and gives rise to a circumflex branch left coronary artery resembles a right coronary artery situs inversus Plain radiograph Chest radiographs may present with mesocardia[] In presence of congenital defect, there is mixing of blood which leads to hypoxia and consequently polycythemia and hyperviscosity.[]

  • Dextrocardia

    Fig. 2 A right-sided, 12-lead electrocardiogram shows normal axis and normal progression of R-wave amplitude in the precordial leads.[] […] containing back-references to 746.87 : Abdomen, abdominal - see also condition heart 746.87 Anomaly, anomalous (congenital) (unspecified type) 759.9 Asplenia 759.0 with mesocardia[] Hypotension and hypoxia increase chances of right-to-left shunt. There is risk of bacterial endocarditis, especially in presence of a central line.[]

  • Corrected Transposition of the Great Vessels

    Laboratory investigations including haematocrit and electrolytes were normal.[] The chest X-ray showed mesocardia. He began to experience signs and symptoms of heart failure in 1992, with a systolic murmur audible over the left sternal border.[] […] descending branch and gives rise to a circumflex branch left coronary artery resembles a right coronary artery situs inversus Plain radiograph Chest radiographs may present with mesocardia[]

  • Transposition of the Great Vessels

    Electrocardiogram (ECG) shows a right axis deviation and right ventricular hypertrophy. Unfortunately, both sets of ECG findings can be viewed as normal in the newborn.[] Diagnostic Evaluation Chest Radiograph With mesocardia or levocardia, the diagnosis may be suspected from the chest radiograph.[] We postulate that newborns with TGV decrease their resting calf flow in response to chronic hypoxia.[]

  • Bochdalek Hernia

    Her electrocardiogram showed a normal sinus rhythm with no ST segment or T-wave abnormalities.[] Mesocardia (axis alteration of heart). Poor prognostic factors include: Diagnosis prior to 25 weeks of gestation. Liver herniation (7).[] A blood gas analysis showed hypoxia.[]

  • Anomalies of Great Veins, Congenital

    […] heart block Complete or incomplete atrioventricular [AV] block 746.87 Malposition of heart and cardiac apex Abdominal heart Dextrocardia Ectopia cordis Levocardia (isolated) Mesocardia[] An electrocardiogram may show right ventricular hypertrophy, but this is non-specific since RVH is present in normal newborns.[] […] pathophysiological alterations are growth retardation, decreased exercise tolerance, recurrent respiratory infections, dyspnea, tachypnea, tachycardia, cyanosis, tissue hypoxia[]

  • Histiocytoid Cardiomyopathy

    She was alert, her heart sounds were clear without a gallop rhythm, her breath sounds were normal, her liver was not palpable, and her extremities were cold.[] […] ventricular noncompaction Levocardia Loeffler endocarditis Lown-Ganong-Levine syndrome Malposition of the coronary ostium Maternally-inherited cardiomyopathy and hearing loss Mesocardia[] It is possible that sublethal myocardial hypoxia, caused by repeated brief episodes of paroxysmal atrial tachycardia, might produce subendocardial patches of progressive myocardial[]

  • Benign Adult Familial Myoclonic Epilepsy

    The electrocardiogram was normal.[] […] lipogranuloma Mesenteric panniculitis Mesial temporal lobe epilepsy with hippocampal sclerosis Mesoaxial polydactyly Mesoaxial synostotic syndactyly with phalangeal reduction Mesocardia[] It is important that hyper-cyanotic spells are recognized as failure to manage these events correctly can lead to prolonged hypoxia and death.[]

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