نتایج جستجو برای: obstructive heart ventricles pulmonary artery
تعداد نتایج: 785786 فیلتر نتایج به سال:
Objective: To present an institutional experience with stent placement in the arterial duct combined with bilateral banding of the pulmonary artery branches as a basis for various surgical strategies in newborns with hypoplastic left heart obstructive lesions. Design: Observational study. Setting: Paediatric heart centre in a university hospital. Patients: 20 newborns with various forms of left...
OBJECTIVE To present an institutional experience with stent placement in the arterial duct combined with bilateral banding of the pulmonary artery branches as a basis for various surgical strategies in newborns with hypoplastic left heart obstructive lesions. DESIGN Observational study. SETTING Paediatric heart centre in a university hospital. PATIENTS 20 newborns with various forms of le...
The purpose of this investigation was to assess the effects of acute hypoxia on left (LV) and right ventricular (RV) contractility in clinically stable chronic obstructive pulmonary disease (COPD) patients. Eleven male patients (mean age 52.4 +/- 12.6 years) who were diagnosed to have COPD were included into the study. All of the patients underwent left and right heart catheterization. RV contr...
Baroreceptor sensitivity, reflected by the slope of the linear regression of the electrocardiographic R-R interval on the rise of systolic blood pressure after injection of phenylephrine, was significantly lower in 27 patients with chronic obstructive pulmonary disease (4.67 +/- 2.67) than in 10 normal subjects (12.07 +/- 3.3) of comparable age (p less than 0.001). In 20 patients in whom right ...
Definition of “functionally single ventricle” includes a wide spectrum of anatomical variants such as double inlet left or right ventricle, mitral or tricuspid atresia, unbalanced atrioventricular canal, heterotaxy syndrome with one normally developed ventricle or other congenital heart defects with severe hypoplasia of one of the ventricles [2]. Anatomical and hemodynamic abnormalities in thes...
Background Pulmonary artery banding (PAB) is a technique of palliative surgical therapy used by congenital heart surgeons as a staged approach to operative correction of congenital heart defects. Materials and Methods We report 5- year experiences from January 2011 to January 2016 of Imam Reza Hospital center (a tertiary referral hospital in Mashhad city, North East of Iran) that consist of 50 ...
Complex cyanotic congenital heart diseases with left isomerism are sometimes associated with atrioventricular nodal conduction disturbances that may need permanent pacing. Surgical palliation in such anatomy connecting the superior vena cava to the pulmonary artery precludes a transvenous access for an endocardial pacing lead to the ventricles. Epicardial leads in these patients fail if the pac...
conclusions based on the results of this study, we suggest the use of a novel “time from the beginning of isovolumetric contraction to the peak of the s wave” (ttp) parameter in the tdi of the base of the rv free wall to predict ph with acceptable accuracy in comparison with rhc. results in our study, the ttp showed a significant inverse relationship with the pap. based on our results, a ttp of...
background pulmonary artery banding (pab) is a technique of palliative surgical therapy used by congenital heart surgeons as a staged approach to operative correction of congenital heart defects. materials and methods we report 5- year experiences from january 2011 to january 2016 of imam reza hospital center (a tertiary referral hospital in mashhad city, north east of iran) that consist of 50 ...
Greater rheas have been the subject of scientific studies in various areas veterinary and biology order to obtain essential information for their captivity management. The aim this study was describe morphology greater rhea heart. 20 animals were incised sagittal plane, then fixed 3.7% formaldehyde dissected after 72 h. In addition, samples from cardiovascular system collected, processed hemato...
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