Of 415 patients, 200 undergoing aortic valve replacement (AVR) and 215 undergoing AVR in combination with myocardial revascularization [coronary artery bypass grafting (CABG)], had complete preoperative health-related quality of life (HRQOL) data. From this group, 224 patients had a follow-up of one year. To assess HRQOL, the EuroQol instrument was used. The EQ-5D index score was calculated, ba...

To evaluate the diagnostic utility and cost-effectiveness of Doppler echocardiography in adults with symptomatic aortic stenosis, we performed a prospective study in which the need for aortic valve replacement (AVR) was the outcome event. The total sample consisted of 103 adults (mean age, 69 years) undergoing cardiac catheterization for suspected aortic stenosis. Twenty-six patients (25%) were...

Recent anatomic findings indicate that in the upper inner medulla of the rodent kidney, tubules, and vessels are organized around clusters of collecting ducts (CDs). Within CD clusters, CDs and some of the ascending vasa recta (AVR) and ascending thin limbs (ATLs), when viewed in transverse sections, form interstitial nodal spaces, which are arrayed at structured intervals throughout the inner ...

Background Sutureless aortic valve replacement (SU-AVR) has been developed as an alternative surgical treatment for patients with symptomatic severe aortic stenosis (AS). The aim of this study was to evaluate the clinical outcomes of SU-AVR through an assessment of hemodynamic performance and safety. Methods From December 2014 to June 2016, a total of 12 consecutive patients with severe AS un...

The present work presents teaching–learning based optimization (TLBO) algorithm as an optimization technique in the area of tuning of the classical controller installed in automatic voltage regulator (AVR). The proposed TLBO algorithm is applied with an aim to find out the optimum value of proportional integral derivative (PID) controller gains with first order low pass filter installed in the ...

OBJECTIVES There is a current trend towards the use of bioprosthetic aortic valves in the aortic position in young patients, but there is limited information on durability beyond the first decade. The Hancock II bioprosthesis has been reported to have excellent durability in patients ≥ 60 years of age. This study examines the long-term durability of the Hancock II bioprosthesis in the aortic po...

The stability control of nominal frequency and terminal voltage in an interconnected power system (IPS) is always a challenging task for researchers. load variation or any disturbance affects the active reactive demands, which badly influence normal working IPS. In order to maintain at rated values, controllers are installed generating stations keep these parameters within prescribed limits by ...

OBJECTIVES This prospective-randomized study investigated the effect of aortic valve design and patient-prosthesis mismatch (PPM) on coronary flow reserve (CFR) after mechanical or biological aortic valve replacement (AVR) in patients with aortic stenosis (AS). BACKGROUND Coronary flow reserve may be an important parameter of long-term survival after AVR in patients with AS. Reduced CFR may c...

This review summarizes the major long-term (> or =10 to 15 years) patient outcomes after insertion of many Food and Drug Administration approved prosthetic heart valves (PHV). Mechanical PHV was associated with a better survival (p < 0.02) at 15 years after aortic valve replacement (AVR) than with a bioprosthesis in the Department of Veterans Affairs (DVA) trial. In both the DVA and the Edinbur...

BACKGROUND Electrocardiogram (ECG) in patients with acute pulmonary embolism (APE) presents many abnormalities. There are no data concerning prognostic significance of ST-elevation (STE) in lead aVR in patients with APE. AIM To assess the prevalence of STE in aVR in patients with APE and its correlation with clinical course as well as other ECG parameters recorded at admission. METHODS The ...