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Heart rate changes during the Valsalva maneuver in patients with isolated aortic insufficiency BJMBR
Navarro,A.E.; Dávila,D.F.; Torres,A.; Bellabarba,G.; Donis,J.H.; Casado,J..
To determine the possible relationship between left ventricular dilatation and heart rate changes provoked by the Valsalva maneuver (Valsalva ratio), we studied 9 patients with isolated chronic aortic insufficiency. Left ventricular systolic function was assessed by two-dimensional echocardiography and cardiac catheterization. All patients were asymptomatic (functional class I of the New York Heart Association). The left ventricular internal diameters and volumes were significantly increased in all patients. The asymptomatic patients had either normal or slightly depressed ejection fraction (EF>0.40). The Valsalva ratio of these asymptomatic patients showed no significant correlation with the left ventricular volumes or with the left ventricular...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Valsalva maneuver; Parasympathetic nervous system; Left ventricular systolic function; Chronic aortic insufficiency; Ejection fraction.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000900005
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A safety and feasibility study of cell therapy in dilated cardiomyopathy BJMBR
Martino,H.F.; Oliveira,P.S.; Souza,F.C.; Costa,P.C.; Assunção e Silva,E.; Villela,R.; Gaze,M.; Weitzel,L.H.; Oliveira Jr.,A.; Muccillo,F.B.; Arvelo,S.N.S.; Sá,R.; Guimarães,T.C.F.; Tura,B.R.; Campos de Carvalho,A.C..
The aim of this study was to determine if bone marrow mononuclear cell (BMMC) transplantation is safe for moderate to severe idiopathic dilated cardiomyopathy (IDC). Clinical trials have shown that this procedure is safe and effective for ischemic patients, but little information is available regarding non-ischemic patients. Twenty-four patients with IDC, optimized therapy, age 46 ± 11.6 years, 17 males, NYHA classes II-IV, and left ventricular ejection fraction <35% were enrolled in the study. Clinical evaluation at baseline and 6 months after stem cell therapy to assess heart function included echocardiogram, magnetic resonance imaging, cardiopulmonary test, Minnesota Quality of Life Questionnaire, and NYHA classification. After cell transplantation 1...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bone marrow cells; Mononuclear fraction; Autologous transplantation; Ejection fraction; Treadmill test; Dilated cardiomyopathy.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010001000011
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Risk factors for pulmonary hypertension in patients receiving maintenance peritoneal dialysis BJMBR
Zeng,Y.; Yang,D.D.; Feng,S.; Shen,H.Y.; Wang,Z.; Jiang,S.; Shi,Y.B.; Fu,J.X..
We investigated the risk factors for pulmonary hypertension (PH) in patients receiving maintenance peritoneal dialysis (MPD). A group of 180 end-stage renal disease patients (124 men and 56 women; mean age: 56.43±8.36) were enrolled in our study, which was conducted between January 2009 and June 2014. All of the patients received MPD treatment in the Dialysis Center of the Second Affiliated Hospital of Soochow University. Clinical data, laboratory indices, and echocardiographic data from these patients were collected, and follow-ups were scheduled bi-monthly. The incidence and relevant risk factors of PH were analyzed. The differences in measurement data were compared by t-test and enumeration data were compared with the χ2 test. Among the 180 patients...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Maintenance peritoneal dialysis; Pulmonary hypertension; End-stage renal disease; Internal arteriovenous fistula; Hypertensive nephropathy; Ejection fraction.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000300703
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