Low baseline proBNP associated with increased risk of intraoperative hypotension during spinal anaesthesia for cesarean delivery
BACKGROUND AND OBJECTIVES: Brain natriuretic peptide (BNP) has a role in the regulation of body fluid volume and blood pressure (BP). BNP remains within a normal range during spinal anaesthesia (SA) in patients undergoing cesarean delivery. However, the effect of BNP on changes in BP during the peri...
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King Faisal Specialist Hospital and Research Centre
2015-05-01
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doaj-cb470e42e0e7431988618c4124349fc62020-11-24T20:40:35ZengKing Faisal Specialist Hospital and Research CentreAnnals of Saudi Medicine0256-49470975-44662015-05-0135324825310.5144/0256-4947.2015.248asm-3-248Low baseline proBNP associated with increased risk of intraoperative hypotension during spinal anaesthesia for cesarean deliveryTayfun Birtay0Gultekin Genctoy1Tonguç Saba2From the Department of Anaesthesiology and Reanimation, Baskent University, Faculty of Medicine, Antalya, TurkeyFrom the Department of Nephrology, Baskent University, Faculty of Medicine, Antalya, TurkeyFrom the Department of Cardiovascular Surgery, Baskent University, Faculty of Medicine, Antalya, TurkeyBACKGROUND AND OBJECTIVES: Brain natriuretic peptide (BNP) has a role in the regulation of body fluid volume and blood pressure (BP). BNP remains within a normal range during spinal anaesthesia (SA) in patients undergoing cesarean delivery. However, the effect of BNP on changes in BP during the perioperative period has not been evaluated. We aimed to investigate the effect of preoperative serum BNP on the risk of hypotension during cesarean delivery with SA. DESIGN AND SETTING: Patients were randomly selected among the patient group who were attending routine clinic visits for pregnancy monitoring. All had a healthy pregnancy and no other acute or chronic disease by their obstetrician. The study design was cross-sectional. PATIENTS AND METHODS: Patients who had uncomplicated pregnancy process and no known medical disease were selected consecutively during their last outpatient clinical examination. Baseline BP was recorded before SA. Simultaneously, blood samples were drawn for routine biochemistry and BNP. BP, SaO2, and electrocardiography were monitored during surgery. Intraoperative hypotension (IOH) was defined as ≥25% decrease in mean arterial pressure (MAP) at the 5th minute of SA. RESULTS: In 41 term pregnant women, 18 of the 41 patients (43.9%) fulfilled the criteria for IOH, while 23 (56.1%) showed a decrease 13.1 (11.3%) and were classified as normotensive. Baseline BNP was significantly lower in patients with IOH compared with normotensive patients 45.7 (26.9) vs.70.2 (40.5); P=.05. Baseline BNP had no significant correlation MAP at any time point. Age, body mass index, hemoglobin, baseline MAP and heart rate were not different between patients with and without IOH. CONCLUSION: Those findings suggest that higher baseline BNP levels might have a protective role in development of hypotension in healthy term pregnant women during SA for cesarean delivery.https://www.annsaudimed.net/doi/full/10.5144/0256-4947.2015.248 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tayfun Birtay Gultekin Genctoy Tonguç Saba |
spellingShingle |
Tayfun Birtay Gultekin Genctoy Tonguç Saba Low baseline proBNP associated with increased risk of intraoperative hypotension during spinal anaesthesia for cesarean delivery Annals of Saudi Medicine |
author_facet |
Tayfun Birtay Gultekin Genctoy Tonguç Saba |
author_sort |
Tayfun Birtay |
title |
Low baseline proBNP associated with increased risk of intraoperative hypotension during spinal anaesthesia for cesarean delivery |
title_short |
Low baseline proBNP associated with increased risk of intraoperative hypotension during spinal anaesthesia for cesarean delivery |
title_full |
Low baseline proBNP associated with increased risk of intraoperative hypotension during spinal anaesthesia for cesarean delivery |
title_fullStr |
Low baseline proBNP associated with increased risk of intraoperative hypotension during spinal anaesthesia for cesarean delivery |
title_full_unstemmed |
Low baseline proBNP associated with increased risk of intraoperative hypotension during spinal anaesthesia for cesarean delivery |
title_sort |
low baseline probnp associated with increased risk of intraoperative hypotension during spinal anaesthesia for cesarean delivery |
publisher |
King Faisal Specialist Hospital and Research Centre |
series |
Annals of Saudi Medicine |
issn |
0256-4947 0975-4466 |
publishDate |
2015-05-01 |
description |
BACKGROUND AND OBJECTIVES: Brain natriuretic peptide (BNP) has a role in the regulation of body fluid volume and blood pressure (BP). BNP remains within a normal range during spinal anaesthesia (SA) in patients undergoing cesarean delivery. However, the effect of BNP on changes in BP during the perioperative period has not been evaluated. We aimed to investigate the effect of preoperative serum BNP on the risk of hypotension during cesarean delivery with SA. DESIGN AND SETTING: Patients were randomly selected among the patient group who were attending routine clinic visits for pregnancy monitoring. All had a healthy pregnancy and no other acute or chronic disease by their obstetrician. The study design was cross-sectional. PATIENTS AND METHODS: Patients who had uncomplicated pregnancy process and no known medical disease were selected consecutively during their last outpatient clinical examination. Baseline BP was recorded before SA. Simultaneously, blood samples were drawn for routine biochemistry and BNP. BP, SaO2, and electrocardiography were monitored during surgery. Intraoperative hypotension (IOH) was defined as ≥25% decrease in mean arterial pressure (MAP) at the 5th minute of SA. RESULTS: In 41 term pregnant women, 18 of the 41 patients (43.9%) fulfilled the criteria for IOH, while 23 (56.1%) showed a decrease 13.1 (11.3%) and were classified as normotensive. Baseline BNP was significantly lower in patients with IOH compared with normotensive patients 45.7 (26.9) vs.70.2 (40.5); P=.05. Baseline BNP had no significant correlation MAP at any time point. Age, body mass index, hemoglobin, baseline MAP and heart rate were not different between patients with and without IOH. CONCLUSION: Those findings suggest that higher baseline BNP levels might have a protective role in development of hypotension in healthy term pregnant women during SA for cesarean delivery. |
url |
https://www.annsaudimed.net/doi/full/10.5144/0256-4947.2015.248 |
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