To study about the relation between oxygen delivery and hemodynamics during cardiopulmonary bypass

Cardiometry Pub Date : 2023-05-04 DOI:10.18137/cardiometry.2023.27.200210

Dr Ashwanth P Reddy, R. Sunitha, D. P. Thangavel, Dr. J. Ramkumar, S. Miller

引用次数: 0

Abstract

The study put forth the relation between oxygen delivery and hemodynamics during cardiopulmonary bypass. The study was performed on 26 patients of either sex have age > 10 years and who underwent elective open-heart surgery from June 2017 – May 2018 in Sri Ramachandra Medical College & Research Institute. The patients with valvular heart diseases associated with other cardiac lesions like Intra cardiac shunts (ASD, VSD etc.) and Coronary artery disease (CABG) are excluded in the study. It examined the relationships among VO2, hemodynamics & DO2 during clinical perfusion, namely throughout moderately hypothermic CPB using a non-pulsatile roller pump while managing the alpha-stat acid-base with adults. The results revealed a linear relationship between VO2 and DO2, demonstrating that higher levels of delivery can perfuse and collect additional vascular beds throughout the CPB. Under bodily tissue perfusion, higher deliveries are advised to be avoided. The oxygen demand decreases by 7% for every 1OC decline in patient temperature.

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目的:探讨体外循环过程中氧输送与血流动力学的关系

研究了体外循环过程中氧输送与血流动力学的关系。该研究对26名年龄在10岁至10岁之间的男女患者进行了研究，这些患者于2017年6月至2018年5月在Sri Ramachandra Medical College & Research Institute接受了择期心脏直视手术。伴有其他心脏病变如心脏内分流(ASD, VSD等)及冠状动脉疾病(CABG)的瓣膜性心脏病患者被排除在本研究之外。它检查了临床灌注过程中VO2，血流动力学和DO2之间的关系，即在成人使用非脉动滚柱泵进行中低温CPB的同时管理α -stat酸碱。结果显示VO2和DO2之间呈线性关系，表明高水平的递送可以在CPB中灌注和收集额外的血管床。在身体组织灌注下，建议避免高产程。病人体温每下降1℃，需氧量就减少7%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cardiometry MEDICAL LABORATORY TECHNOLOGY-

自引率

0.00%

发文量

审稿时长

6 weeks

期刊介绍： Cardiometry is an open access biannual electronic journal founded in 2012. It refers to medicine, particularly to cardiology, as well as oncocardiology and allied science of biophysics and medical equipment engineering. We publish mainly high quality original articles, reports, case reports, reviews and lectures in the field of the theory of cardiovascular system functioning, principles of cardiometry, its diagnostic methods, cardiovascular system therapy from the aspect of cardiometry, system and particular approaches to maintaining health, engineering peculiarities in cardiometry developing. The interdisciplinary areas of the journal are: hemodynamics, biophysics, biochemistry, metrology. The target audience of our Journal covers healthcare providers including cardiologists and general practitioners, bioengineers, biophysics, medical equipment, especially cardiology diagnostics device, developers, educators, nurses, healthcare decision-makers, people with cardiovascular diseases, cardiology and engineering universities and schools, state and private clinics. Cardiometry is aimed to provide a wide forum for exchange of information and public discussion on above scientific issues for the mentioned experts.