Ebook Basic clinical anesthesia: Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook Basic clinical anesthesia: Part 2
Ebook Basic clinical anesthesia: Part 2
Part IVSpecialty AnesthesiaCardiac AnesthesiaMahesh Sardesai26Cardiac anesthesiology encompasses (he perioperative management of patients undergoing s Ebook Basic clinical anesthesia: Part 2surgery on the heart and great vessels, as well as an increasing variety of transcatheter and other nonsurgical procedures. Cardiovascular disease is the leading cause of death in the United States and other industrialized nations, and it comprises an increasing share of (he disease burden in the de Ebook Basic clinical anesthesia: Part 2veloping world. Accordingly, the fundamental principles of cardiac anesthesiology arc essential not only for cardiac surgery itself, but also for theEbook Basic clinical anesthesia: Part 2
care of patients with various degrees of cardiovascular compromise undergoing noncardiac procedures. Therefore, optimum anesthetic care of these patiePart IVSpecialty AnesthesiaCardiac AnesthesiaMahesh Sardesai26Cardiac anesthesiology encompasses (he perioperative management of patients undergoing s Ebook Basic clinical anesthesia: Part 2cardiac surgical techniques, and cardiac perioperative care.Cardiovascular PhysiologyThe underlying principle of perioperative management in any patient is to maintain adequate oxygen delivery to sustain the metabolic requirements of vital organs and peripheral tissues. The ultimate goal of any card Ebook Basic clinical anesthesia: Part 2iac surgical intervention is to provide conditions that promote adequate tissue perfusion with as little cardiopulmonary burden as possible.Blood PresEbook Basic clinical anesthesia: Part 2
sureTissue perfusion depends on systemic bkxxl pressure and local vascular resistance. Local vascular resistance is determined bylocal vasomotor tone.Part IVSpecialty AnesthesiaCardiac AnesthesiaMahesh Sardesai26Cardiac anesthesiology encompasses (he perioperative management of patients undergoing s Ebook Basic clinical anesthesia: Part 2l pressure (MAP),M. Sardesai. M.D.. M.B.A. (M)IX'pannwnt of Anesthesiology. UPMC Shadyside Hospital. 5230 Centre Avenue Suite 205. Pittsburgh, PA 15232, USA e-mail: sardcsaimpt* upmc.edunormally between 70 and 100 mmHg, normally between 70 and 100 mmHg. Pulsatile How from cyclic cardiac contrac tion Ebook Basic clinical anesthesia: Part 2s generates a pulse pressure, the difference between systolic bloixl pressure (SBP) and diastolic blood pressure (DRE). The live main physiologic paraEbook Basic clinical anesthesia: Part 2
meters that contribute to blood pressure are heart rate, rhythm, contractility, preload, and afterload. Understanding these live parameters is essentiPart IVSpecialty AnesthesiaCardiac AnesthesiaMahesh Sardesai26Cardiac anesthesiology encompasses (he perioperative management of patients undergoing s Ebook Basic clinical anesthesia: Part 2f SBP and DBF:MAP*^SBP + ^DBPHowever, at high heart rates, changes in the shape of the arterial pulse pressure curve cause MAP to approach the mean of SBP and DBP. Systemic blood pressure depends on a contribution from the heart, cardiac output (CO), and a contribution from the systemic vasculature, Ebook Basic clinical anesthesia: Part 2 systemic vascular resistance (SVR):MAP=COxSVRCardiac OutputCardiac output is the volume of blcxxl pumped by the heart into the peripheral circulationEbook Basic clinical anesthesia: Part 2
every minute. Normal co is approximately 5 6 L/min in a 70 kg adult male. Cardiac index (Cl), equal to co divided by body surface area (BSA), is a noPart IVSpecialty AnesthesiaCardiac AnesthesiaMahesh Sardesai26Cardiac anesthesiology encompasses (he perioperative management of patients undergoing s Ebook Basic clinical anesthesia: Part 2 right and left sides of the heart, but certain congenital abnormalities and trau malic injuries can cause the two sides of the heart to eject different amounts of bloixl per cardiac cycle. (X) is equal Io the product of heart rate (HR) and stroke volume (SV):co = HR X.SVCl = co/RS AP.K. Sikka Cl al Ebook Basic clinical anesthesia: Part 2. (cds.). Baiic Clinical Anesihaia.IX>I IO.IOO7/978-l-4939-l737-2_26. ۥ Springer Science* Business Media New York 2015311312M. SardesatTable 26.1 OveEbook Basic clinical anesthesia: Part 2
rview of physiologic determinants of systemic blood pressureHeart rateColloquialPulse nite, heartbeats per minuteClinicalPeriodicity or frequency ofcoPart IVSpecialty AnesthesiaCardiac AnesthesiaMahesh Sardesai26Cardiac anesthesiology encompasses (he perioperative management of patients undergoing s Ebook Basic clinical anesthesia: Part 2Regularity of contractionPart IVSpecialty AnesthesiaCardiac AnesthesiaMahesh Sardesai26Cardiac anesthesiology encompasses (he perioperative management of patients undergoing sGọi ngay
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