Volume 8, Issue 1 (2023)                   SJMR 2023, 8(1): 37-42 | Back to browse issues page


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Nateghi M R, Saremi A, Abbasi B, Karimi MansoorAbad E. Balancing Blood Pressure: Understanding Hemodynamic Fluctuations in Spinal Anesthesia. SJMR 2023; 8 (1) : 5
URL: http://saremjrm.com/article-1-290-en.html
1- Sarem Gynecology, Obstetrics and Infertility Research Center, Sarem Women's Hospital, Iran University of Medical Sciences (IUMS), Tehran, Iran
2- Sarem Gynecology, Obstetrics and Infertility Research Center, Sarem Women's Hospital, Iran University of Medical Sciences (IUMS), Tehran, Iran & Department of Medical Genetics, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
Abstract:   (1379 Views)
Spinal anesthesia is a widely utilized technique in various surgical procedures, yet it presents the potential for hemodynamic fluctuations, manifesting as hypotension and hypertension. Understanding the underlying mechanisms and predisposing factors for these fluctuations is essential for optimizing patient care and outcomes especially in obstetrics settings. Hypotension during spinal anesthesia primarily results from sympathetic blockade-induced vasodilation and reduced systemic vascular resistance. Factors influencing its occurrence include the sensory block level, anesthesia onset speed, intravenous fluid volume and type, and baseline blood pressure. Hypertension may arise from sympathetic stimulation due to pain or anxiety during the procedure. Mechanisms contributing to hypertension encompass the renin-angiotensin-aldosterone system activation and increased norepinephrine release. The individual's baseline sympathetic tone, level of sympathetic blockade, and preexisting conditions, particularly in hypertensive patients, can influence these hemodynamic responses. Obstetric patients face additional challenges due to aortocaval compression in the supine position during pregnancy. Spinal anesthesia-induced hemodynamic fluctuations, encompassing both hypotension and hypertension, require careful consideration. Effective management strategies include fluid preloading, vasopressor administration for hypotension, and anxiolytic medications or short-acting antihypertensive agents for hypertension. Further research is needed to refine these strategies and enhance patient safety during spinal anesthesia, especially in populations with specific susceptibilities, such as hypertensive and obstetric patients.
Article number: 5
Full-Text [PDF 310 kb]   (584 Downloads)    
Article Type: Systematical Review | Subject: Pregnancy Care
Received: 2023/05/8 | Accepted: 2023/06/4 | Published: 2023/10/21

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