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aortic valve insufficiency/hypoxia
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Procedural Techniques for the Management of Severe Transvalvular and Paravalvular Aortic Regurgitation During TAVR.
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Aortic regurgitation (AR) after transcatheter aortic valve replacement (TAVR) is associated with an increased risk of mortality. In severe cases, abrupt hemodynamic changes may occur with a sudden increase in left ventricular end-diastolic pressure that results in frank pulmonary edema, hypoxia, and
Aortic regurgitation associated with critical aortic stenosis in a fetus.
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Aortic regurgitation in association with aortic stenosis is rare in the fetus. Findings have shown that severe aortic regurgitation is worsened by the increase in systemic vascular resistance after birth, resulting in low cardiac output, hypoxemia, and neonatal death. This report describes a unique
Acute right to left shunt through patent foramen ovale presenting as hypoxemia after myocardial infarction: a case report.
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BACKGROUND
This is a report of a 56-year-old man who became hypoxic due to an acute right to left shunt after sustaining a myocardial infarction involving the right ventricle. This case provides the opportunity to review several key pathophysiologic concepts in the setting of acute right ventricular
Relaxation of mammalian heart muscle during chronic cardiac overload.
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Cardiac relaxation was studied in rat papillary muscle during hypertrophy induced by different chronic volume and/or pressure overload (aortic insufficiency, aorto-caval fistula, aortic stenosis, spontaneously hypertensive rat). Maximum velocity of lengthening did not depend upon the degree of
[Cardiac relaxation in experimental chronic myocardial hypertrophy: role of the sarcoplasmic reticulum].
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The relaxation phase was studied in normal rat hearts submitted to chronic myocardial pressure and/or volume overload (stenosis of the abdominal aorta, aortic regurgitation, aorto-caval fistula) and in spontaneously hypertensive rats, some of which also had aorto-caval fistulae. Four indices were
Evaluation of an incidental cardiac finding in a patient with bronchitis.
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CLINICAL INTRODUCTION: A 63-year-old man with HIV presented with 1 month of dyspnoea and productive cough without orthopnoea. He was afebrile with normal blood pressure, borderline tachycardia and mild pulmonary wheezing. He had exertional hypoxia requiring 4 L per minute of oxygen. No murmurs,
[Cardiac tamponade caused by aortic pseudoaneurysm with fistula in the right ventricle].
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A 69-year-old woman, with an aortic replacement valve for rheumatic aortic insufficiency suffered a sudden cardiac tamponade caused by a ruptured pseudoaneurysm of the ascending aorta which had its origin in the suture of the aorta performed 10 years earlier. The cardiac tamponade presented as
Prenatal diagnosis of congenital absence of aortic valve associated with restrictive foramen ovale: Hemodynamic features and clinical outcome.
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We present the case of a fetus with absent aortic valve (AAV), mitral regurgitation (MR), and restrictive foramen ovale (FO) who survived in utero but died of severe hypoxia after birth. We reported previously two cases of "inverse circulatory shunt" in AAV with MR, that is, blood from the ascending
Administration of dexmedetomidine alone during diagnostic cardiac catheterization in adults with congenital heart disease: two case reports.
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We report the clinical management of 2 adults with mental retardation because of trisomy 21 who were sedated with high-dose dexmedetomidine (DEX) alone during diagnostic cardiac catheterization (DCC). The first patient was a 25-year-old man with aortic regurgitation and ventricular septal defect.
Hypertrophy of the heart; electrocardiographic distinction between physiologic and pathologic enlargement.
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Electrocardiograms of marathon runners were examined to study hypertrophy of the heart due to prolonged physical exertion and to differentiate this from hypertrophy due to various disease states, especially essential hypertension, aortic valvular disease and coarctation of the aorta. The
[Unexpected tracheobronchomalacia during cardiac operation in a patient with Marfan's syndrome].
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A 56-year-old man with Marfan's syndrome was scheduled for a valve-sparing aortic root replacement operation because of annuloaortic ectasia and aortic regurgitation. He had severe dyspnea. When the operation started, SpO2 decreased at the time of the median sternotomy, and increased by manual
Markedly enlarged right atrium associated with physical signs of tricuspid regurgitation--a cause of congestive heart failure in the elderly.
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We retrospectively examined 8 patients who had classical physical signs of tricuspid regurgitation associated with congestive heart failure, the cause of which was not identified by echocardiography. Exclusion criteria were as follows; 1) peak velocity of tricuspid regurgitation greater than 3
Severe re-expansion pulmonary edema after conventional cardiac surgery: Identification and management.
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Re-expansion Pulmonary Edema (REPE) is a recognized but rare complication of lung re-inflation after pathologic collapse or intentional deflation. The presentation of REPE may be highly variable, ranging from a clinically asymptomatic, incidental radiologic finding to acute respiratory failure
A critical increase in right-to-left shunt after acute myocardial infarction in a 68-year-old male with tetralogy of Fallot.
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A male patient with tetralogy of Fallot accompanied by aortic regurgitation had maintained sufficient exercise capacity for a number of decades with the status of acyanotic tetralogy of Fallot. When he was 67 years old, he suffered a posterior wall acute myocardial infarction and direct percutaneous
[Mitral valve replacement under beating heart in 137 cases].
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To avoid damage of myocardial ischemia, myocardial hypoxia and reperfusion injury, we designed mitral valve replacement in beating heart under extracorporeal circulation with low dose temperature of 31 degrees C to 35 degrees C in 137 cases of rheumatic heart disease, congenital heart disease mitral
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