mitral valve stenosis/hypoxia

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[Hemodynamics of the lesser circulation during respiration in hypoxia and hyperoxia in subjects with pulmonary hypertension caused by mitral stenosis].

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Studies of pulmonary hypertension. VII. Hemodynamic effects of acute hypoxia in patients with mitral stenosis.

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The effects of exercise on ventilation-perfusion relationship in patients with mitral stenosis.

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Exercise limitation is common in patients with chronic pulmonary venous hypertension. One postulated mechanism is ventilation-perfusion inequality secondary to vascular congestion and edema formation. To investigate this possibility, five patients with symptomatic, chronic mitral stenosis were

Cardiogenic Shock after Nifedipine Administration in a Pregnant Patient: A Case Report and Review of the Literature.

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We present a case of a 21-year-old Caucasian woman at 27 weeks of pregnancy who was admitted to the obstetric department for pre-term labor. She received 10 mg of nifedipine 4 times in 1 h, according to the internal protocol. Shortly after, she brutally deteriorated with pulmonary edema and

[Echocardiographic study of right ventricular performance by acute and chronic pressure overloadings].

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Echocardiographic analysis of right ventricular ejection time (RVET), pre-ejection time (RVPEP), RVPEP/ET and isovolumic relaxation time (RVIRT) was performed in patients with acute or chronic right ventricular pressure overloading. Fifty-five patients undergoing right ventricular cardiac

Arachnoid nodules in the lungs of high altitude Indians.

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BACKGROUND Nodules of cells showing a striking histological similarity to those of arachnoid villi have previously been found closely adjacent to pulmonary venules in several diseases associated with alveolar hypoxia or pulmonary oedema including mitral stenosis, plexogenic pulmonary arteriopathy,

Protein turnover in the in vitro perfused working rat heart.

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We have examined the effects of various interventions on protein degradation and synthesis in the in vitro left side perfused working rat heart preparation of Taegtmeyer, Hems and Krebs. In the absence of insulin, we could not detect any effects of increased pressure workload or of increased volume

Fetal heart monitoring during open heart surgery. Two case reports.

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Two patients with critical mitral stenosis underwent open mitral valvotomy during the third trimester of pregnancy. Fetal monitoring throughout heart-lung bypass produced evidence of acute fetal hypoxia. Healthy live full-term infants were subsequently delivered.

Right-to-Left Shunt During Transseptal Mitral Valve-in-Valve Replacement: A Case Report.

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The following case report details an 88-year-old woman with severe mitral stenosis and moderate mitral regurgitation who presented with worsening dyspnea on exertion. The patient had undergone 4-vessel coronary artery bypass graft and mitral valve replacement 14 years before and was deemed high risk

[Heart surgery with extracorporeal circulation in pregnant women. Analysis of materno-fetal outcome].

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OBJECTIVE To analyze maternal and fetal outcome in pregnant undergone to cardiac surgery. METHODS We studied the evolution of 30 pregnant women submitted to cardiac surgery at the Hospital São Paulo, between Jan/81 and Dec/92 and, further, attended at this Hospital till the parturition. The

[Characteristics of the changes in the concentration of 2,3-diphosphoglycerate in heart surgery patients].

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Changes in 2,3-DPG level have been studied in cardiosurgical patients. It has been shown that 2,3-DPG concentration increase, as a moderately fast mechanism in a common model of tissue pO2 regulation, is observed in almost half of patients with acquired heart valve defects. An increase in 2,3-DPG

[Active and passive factors in the genesis of pulmonary arterial hypertension in various cardiopathies and pneumopathies].

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The role of active and passive factors involved in the genesis of Pulmonary Arterial Hypertension (PAH) is analyzed in a group of eighty patients with several cardiopathies and pneumopathies. The group include: 20 patients with Chronic Obstructive Lung Disease (NODC), 20 with Diffuse intersticial

Extracorporeal membrane oxygenation in severe acute respiratory failure in postpartum woman with rheumatic mitral valve disease: benefit, factors furthering the success of this procedure, and review of the literature.

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Pregnancy is a common decompensation factor for women with post-rheumatic mitral disease. However, valvular heart diseases causing severe acute respiratory distress are rare. Use of extracorporeal membrane oxygenation (ECMO) early in the event of cardiorespiratory failure after cardiac surgery may

[Postoperative endocardial fibrosis following mitral valve prosthesis].

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Uncommon observation of endocardial fibroelastosis of the left auricle and ventricle found at autopsy. The 46-year-old female patient had her mitral valve replaced 15 months ago because of mitral stenosis (and slight incompetence). The left auricle with certainty did not show endocardial fibrosis at

Pulmonary and pleural complications of cardiac disease.

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Disorders of the heart frequently cause pulmonary dysfunction because of the close structural and functional association of the heart and lungs. The pulmonary vasculature is very commonly affected by cardiac pathology. The pulmonary vasculature is normally a low-pressure, low-resistance circuit with

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