Outcome analysis in patients with multi vessel coronary artery disease and left ventricular ejection fraction after percutaneous coronary intervention: single center experience

Background: The present study evaluated the changes in baseline left ventricular function and clinical symptoms in multi-vessel coronary artery disease patients after multi-vessel percutaneous coronary intervention.Methods: This was a prospective, observational study conducted at Medical Super-speciality Hospital, Kolkata, India, between August 2017 and August 2019. The study included 48 patients who were diagnosed with ≥2 coronary artery stenosis of ≥50% in native coronary arteries with left ventricular ejection fraction (LVEF) <40%. Echocardiography was performed before and after 3 months of the procedure to observe LVEF. Canadian Cardiovascular Society (CCS) score was calculated before and after 3 months after PCI.Results: Mean age of the patients was 61.89±9.96 years and 89.6% patients were male. Mean LVEF before and after angioplasty was 34.9±4.95% and 42.06±8.78%, respectively (p=0.001). CCS score before and after angioplasty was 2.89 and 1.83, respectively (p=0.001).Conclusions: The results displayed significant improvement in clinical symptoms as well as LVEF after PCI in patients with multi-vessel disease with LVEF <40%. These results will be helpful to conduct larger randomized trials with long term follow-up in order to prove the safety and effectiveness of PCI in such patients over coronary artery bypass grafting

A SURVEY ON PUBLISHED PAPERS ON OPTIMIZATION IN THE ASSEMBLY LINE BALANCING PROBLEMS IN A HEAVY ENGINEERING INDUSTRY

This paper gives a survey report on different optimization techniques used by different authors on assembly line balancing problems . The author gives a new technique which is different from them on minimization of number of work stations of a ALBP-1

EXPLORING CROSBY’S FOURTEEN STEPS TO QUALITY IMPROVEMENT APPLIED TO INDUSTRY

In this paper the author explains the fourteen points of Crosby’s quality improvement  applied to industry . Examples are given to each point such that there is a clear understanding of each point. Explanations are given in such a way that the management of the industry may directly apply the thoughts of Crosby to practice

DESIGNING FORMS AND FORMATS FOR QUALITY MANAGEMENT SYSTEM APPLIED TO INDUSTRY

The author designs the important forms and formats which are used in implementing quality management system as per ISO 9000 series of standards. Forms and formats are used to keep records of the findings resulting from measurements and tests