Maternal and anaesthesia-related risk factors and incidence of spinal anaesthesia-induced hypotension in elective caesarean section: A multinomial logistic regression

The study was undertaken in the Department of Anaesthesiology, Gajra Raja Medical College, Gwalior. The study included 90 patients (age 20-35 years) undergoing elective caesarean section under spinal anaesthesia. Maximum hypotension was observed in control group. As compared to the control group, incidence of hypotension was significantly less in phenylephrine group as well as ephedrine group. Also comparing ephedrine and phenylephrine groups, although incidence of hypotension was low in phenylephrine group but it was not found to be significant. The incidence of hypotension was significantly low in phenylephrine group (p=0.000) and ephedrine group (p=0.005). But when phenylephrine and ephedrine groups were compared, although incidence of hypotension was low in phenylephrine group but it was not found to be significant (p=0.869). Keywords: Intravenous Vasopressor, Spinal Anaesthesia, Hypotension & Phenylephrine.

Download Full-text

A Comparative Study to Evaluate the Effect of Norepinephrine and Phenylephrine in the Treatment of Post Spinal Hypotension for Caesarean Section

Archives of Anesthesia and Critical Care ◽

10.18502/aacc.v8i1.8240 ◽

2022 ◽

Author(s):

Archita Patil ◽

Rashmee Chavan ◽

Shwetha K. Mudalagirigowda ◽

Sravya Adda

Keyword(s):

Caesarean Section ◽

Spinal Anaesthesia ◽

Elective Caesarean Section ◽

Fluid Loading ◽

Time Intervals ◽

Induced Hypotension ◽

Cardiovascular Side Effects ◽

Blinded Study ◽

Spinal Hypotension ◽

Double Blinded

Background: Maternal hypotension due to spinal anaesthesia in caesarean section is commonly seen. Alongwith fluid loading, phenylephrine is used to manage the hypotension. However, this drug is associated with cardiovascular side effects. Methods: This is a prospective double blinded study which was conducted on 100 term parturients scheduled from elective caesarean section under spinal anaesthesia, randomly assigned into two groups. After spinal anaesthesia patients of group N and P were treated with norepinephrine (5mcg) and phenylephrine (50mcg) respectively as an IV bolus for hypotension. Blood pressure, heart rate, number of bolus doses given, and neonatal APGAR score was noted. Results: Patients of both groups were comparable with respect to haemodynamic parameters (HR, SBP, DBP, AND MAP). Incidence of bradycardia was higher in group P (22%, n=11) compared to group N (14%, n=7). Neonatal APGAR scores at different time intervals were similar in both groups. Conclusion: Intermittent boluses of norepinephrine were effective in the treatment of spinal anaesthesia induced hypotension during caesarean section and can be considered as an alternative to phenylephrine.

Download Full-text

Effect of granisetron in attenuation of hypotension following spinal anaesthesia in parturients undergoing elective caesarean section - a double blind randomized controlled trial

Journal of Society of Anesthesiologists of Nepal ◽

10.3126/jsan.v3i1.14635 ◽

2016 ◽

Vol 3 (1) ◽

pp. 13-17

Author(s):

Suraj Lamichhane ◽

Siddhartha Koirala ◽

Satyendra Narayan Singh

Keyword(s):

Blood Pressure ◽

Caesarean Section ◽

Arterial Pressure ◽

Spinal Anaesthesia ◽

Elective Caesarean Section ◽

Saline Control ◽

Induced Hypotension ◽

Pre Treatment ◽

Type 3 ◽

Change In Mean

Background: Spinal anaesthesia has side effects like hypotension and bradycardia, which may be induced by sympathetic blockade and Bezold-Jarisch reflex (mediated by peripheral serotonin receptor, 5-HT3 type). The objective of the study was to evaluate the effects of type 3 serotonin receptors blockade by intravenous granisetron pre-treatment in spinal induced hypotension in parturient undergoing elective caesarean section.Methods: Fifty six parturient with American Society of Anaesthesiologists Physical Status I and II undergoing elective caesarean section were assigned randomly to receive either Normal Saline (control) or Granisetron 1mg intravenously five minutes before spinal anaesthesia. Spinal anaesthesia was performed with 2.2 ml 0.5% hyperbaric bupivacaine solution and then heart rates, systolic blood pressure, diastolic blood pressure, mean arterial pressure were recorded every two and half minutes for ten minutes and then every five minutes for till end of surgery after. Hemodynamic parameters were compared with baseline in each group.Results: Change in mean, systolic and diastolic arterial pressure compared with baseline value were comparable in both the groups, but use of ephedrine as rescue vasopressor drug was significantly reduced in granisetron group. The episodes of hypotension, nausea/vomiting and shivering were comparable in both groups.Conclusions: Type 3 serotonin blockade by intravenous granisetron pre-treatment does not reduce spinal induced hypotension in parturient undergoing elective caesarean section; however there is reduction in need of rescue vasopressor.

Download Full-text

Robotics and the Airway Management

Archives of Anesthesia and Critical Care ◽

10.18502/aacc.v8i1.8236 ◽

2022 ◽

Author(s):

Zahid Hussain Khan ◽

Surender K. Malhotra

Keyword(s):

Caesarean Section ◽

Spinal Anaesthesia ◽

Elective Caesarean Section ◽

Fluid Loading ◽

Time Intervals ◽

Induced Hypotension ◽

Haemodynamic Parameters ◽

Cardiovascular Side Effects ◽

Blinded Study ◽

Double Blinded

Background: Maternal hypotension due to spinal anaesthesia in caesarean section is commonly seen. Alongwith fluid loading, phenylephrine is used to manage the hypotension. However, this drug is associated with cardiovascular side effects. Methods: This is a prospective double blinded study which was conducted on 100 term parturients scheduled from elective caesarean section under spinal anaesthesia, randomly assigned into two groups. After spinal anaesthesia patients of group N and P were treated with norepinephrine (5mcg) and phenylephrine (50mcg) respectively as an IV bolus for hypotension. Blood pressure, heart rate, number of bolus doses given, and neonatal APGAR score was noted. Results: Patients of both groups were comparable with respect to haemodynamic parameters (HR, SBP, DBP, AND MAP). Incidence of bradycardia was higher in group P (22%, n=11) compared to group N (14%, n=7). Neonatal APGAR scores at different time intervals were similar in both groups. Conclusion: Intermittent boluses of norepinephrine were effective in the treatment of spinal anaesthesia induced hypotension during caesarean section and can be considered as an alternative to phenylephrine.

Download Full-text

Maternal and neonatal risk factors for neonatal respiratory distress syndrome in term neonates in Cyprus: a prospective case–control study

Italian Journal of Pediatrics ◽

10.1186/s13052-021-01086-5 ◽

2021 ◽

Vol 47 (1) ◽

Author(s):

Paraskevi Stylianou-Riga ◽

Theodora Boutsikou ◽

Panayiotis Kouis ◽

Paraskevi Kinni ◽

Marina Krokou ◽

...

Keyword(s):

Risk Factors ◽

Pulmonary Hypertension ◽

Caesarean Section ◽

Distress Syndrome ◽

Elective Caesarean Section ◽

Case Control ◽

Male Gender ◽

Term Neonates ◽

Systemic Hypotension ◽

Neonatal Respiratory Distress

Abstract Background Neonatal respiratory distress syndrome (NRDS) is strongly associated with premature birth, but it can also affect term neonates. Unlike the extent of research in preterm neonates, risk factors associated with incidence and severity of NRDS in term neonates are not well studied. In this study, we examined the association of maternal and neonatal risk factors with the incidence and severity of NRDS in term neonates admitted to Neonatal Intensive Care Unit (NICU) in Cyprus. Methods In a prospective, case-control design we recruited term neonates with NRDS and non-NRDS admitted to the NICU of Archbishop Makarios III hospital, the only neonatal tertiary centre in Cyprus, between April 2017–October 2018. Clinical data were obtained from patients’ files. We used univariate and multivariate logistic and linear regression models to analyse binary and continuous outcomes respectively. Results During the 18-month study period, 134 term neonates admitted to NICU were recruited, 55 (41%) with NRDS diagnosis and 79 with non-NRDS as controls. In multivariate adjusted analysis, male gender (OR: 4.35, 95% CI: 1.03–18.39, p = 0.045) and elective caesarean section (OR: 11.92, 95% CI: 1.80–78.95, p = 0.01) were identified as independent predictors of NRDS. Among neonates with NRDS, early-onset infection tended to be associated with increased administration of surfactant (β:0.75, 95% CI: − 0.02-1.52, p = 0.055). Incidence of pulmonary hypertension or systemic hypotension were associated with longer duration of parenteral nutrition (pulmonary hypertension: 11Vs 5 days, p < 0.001, systemic hypotension: 7 Vs 4 days, p = 0.01) and higher rate of blood transfusion (pulmonary hypertension: 100% Vs 67%, p = 0.045, systemic hypotension: 85% Vs 55%, p = 0.013). Conclusions This study highlights the role of elective caesarean section and male gender as independent risk factors for NRDS in term neonates. Certain therapeutic interventions are associated with complications during the course of disease. These findings can inform the development of evidence-based recommendations for improved perinatal care.

Download Full-text

Efficacy and safety of 5 mg olanzapine for nausea and vomiting management in cancer patients receiving carboplatin: integrated study of three prospective multicenter phase II trials

BMC Cancer ◽

10.1186/s12885-021-08572-3 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Senri Yamamoto ◽

Hirotoshi Iihara ◽

Ryuji Uozumi ◽

Hitoshi Kawazoe ◽

Kazuki Tanaka ◽

...

Keyword(s):

Risk Factors ◽

Logistic Regression ◽

Cancer Patients ◽

Phase Ii ◽

Low Dose ◽

Nausea And Vomiting ◽

Efficacy And Safety ◽

Multivariable Logistic Regression ◽

Related Risk ◽

Total Control

Abstract Background The efficacy of olanzapine as an antiemetic agent in cancer chemotherapy has been demonstrated. However, few high-quality reports are available on the evaluation of olanzapine’s efficacy and safety at a low dose of 5 mg among patients treated with carboplatin regimens. Therefore, in this study, we investigated the efficacy and safety of 5 mg olanzapine for managing nausea and vomiting in cancer patients receiving carboplatin regimens and identified patient-related risk factors for carboplatin regimen-induced nausea and vomiting treated with 5 mg olanzapine. Methods Data were pooled for 140 patients from three multicenter, prospective, single-arm, open-label phase II studies evaluating the efficacy and safety of olanzapine for managing nausea and vomiting induced by carboplatin-based chemotherapy. Multivariable logistic regression analyses were performed to determine the patient-related risk factors. Results Regarding the endpoints of carboplatin regimen-induced nausea and vomiting control, the complete response, complete control, and total control rates during the overall study period were 87.9, 86.4, and 72.9%, respectively. No treatment-related adverse events of grade 3 or higher were observed. The multivariable logistic regression models revealed that only younger age was significantly associated with an increased risk of non-total control. Surprisingly, there was no significant difference in CINV control between the patients treated with or without neurokinin-1 receptor antagonist. Conclusions The findings suggest that antiemetic regimens containing low-dose (5 mg) olanzapine could be effective and safe for patients receiving carboplatin-based chemotherapy.

Download Full-text

A comprehensive, contemporary assessment of the association between hepatosteatosis and coronary artery calcium scoring

European Heart Journal - Cardiovascular Imaging ◽

10.1093/ehjci/jeaa356.234 ◽

2021 ◽

Vol 22 (Supplement_1) ◽

Author(s):

T Heseltine ◽

SW Murray ◽

RL Jones ◽

M Fisher ◽

B Ruzsics

Keyword(s):

Risk Factors ◽

Logistic Regression ◽

Coronary Artery ◽

Regression Model ◽

Coronary Artery Calcium ◽

Logistic Regression Model ◽

Prediction Models ◽

Multinomial Logistic Regression ◽

Cvd Risk ◽

Male Sex

Abstract Funding Acknowledgements Type of funding sources: None. onbehalf Liverpool Multiparametric Imaging Collaboration Background Coronary artery calcium (CAC) score is a well-established technique for stratifying an individual’s cardiovascular disease (CVD) risk. Several well-established registries have incorporated CAC scoring into CVD risk prediction models to enhance accuracy. Hepatosteatosis (HS) has been shown to be an independent predictor of CVD events and can be measured on non-contrast computed tomography (CT). We sought to undertake a contemporary, comprehensive assessment of the influence of HS on CAC score alongside traditional CVD risk factors. In patients with HS it may be beneficial to offer routine CAC screening to evaluate CVD risk to enhance opportunities for earlier primary prevention strategies. Methods We performed a retrospective, observational analysis at a high-volume cardiac CT centre analysing consecutive CT coronary angiography (CTCA) studies. All patients referred for investigation of chest pain over a 28-month period (June 2014 to November 2016) were included. Patients with established CVD were excluded. The cardiac findings were reported by a cardiologist and retrospectively analysed by two independent radiologists for the presence of HS. Those with CAC of zero and those with CAC greater than zero were compared for demographic and cardiac risks. A multivariate analysis comparing the risk factors was performed to adjust for the presence of established risk factors. A binomial logistic regression model was developed to assess the association between the presence of HS and increasing strata of CAC. Results In total there were 1499 patients referred for CTCA without prior evidence of CVD. The assessment of HS was completed in 1195 (79.7%) and CAC score was performed in 1103 (92.3%). There were 466 with CVD and 637 without CVD. The prevalence of HS was significantly higher in those with CVD versus those without CVD on CTCA (51.3% versus 39.9%, p = 0.007). Male sex (50.7% versus 36.1% p= <0.001), age (59.4 ± 13.7 versus 48.1 ± 13.6, p= <0.001) and diabetes (12.4% versus 6.9%, p = 0.04) were also significantly higher in the CAC group compared to the CAC score of zero. HS was associated with increasing strata of CAC score compared with CAC of zero (CAC score 1-100 OR1.47, p = 0.01, CAC score 101-400 OR:1.68, p = 0.02, CAC score >400 OR 1.42, p = 0.14). This association became non-significant in the highest strata of CAC score. Conclusion We found a significant association between the increasing age, male sex, diabetes and HS with the presence of CAC. HS was also associated with a more severe phenotype of CVD based on the multinomial logistic regression model. Although the association reduced for the highest strata of CAC (CAC score >400) this likely reflects the overall low numbers of patients within this group and is likely a type II error. Based on these findings it may be appropriate to offer routine CVD risk stratification techniques in all those diagnosed with HS.

Download Full-text

Prevention of Hypotension following Spinal Anaesthesia in Caesarean Section - then and now

Kathmandu University Medical Journal ◽

10.3126/kumj.v8i4.6242 ◽

2012 ◽

Vol 8 (4) ◽

pp. 415-419

Author(s):

J K Mitra

Keyword(s):

Risk Factors ◽

Clinical Practice ◽

High Risk ◽

Caesarean Section ◽

Spinal Anaesthesia ◽

Limited Data ◽

First Line ◽

High Risk Patients ◽

Risk Patients ◽

Poor Efficacy

Hypotension during spinal anaesthesia for caesarean section remains a common scenario in our clinical practice. Certain risk factors play a role in altering the incidence of hypotension. Aortocaval compression counteraction does not help to prevent hypotension. Intravenous crystalloid prehydration has poor efficacy; thus, the focus has changed toward co-hydration and use of colloids. Phenylephrine is established as a first- line vasopressor, although there are limited data from high-risk patients. Ephedrine crosses the placenta more than phenylephrine and cause possible alterations in the foetal physiology.http://dx.doi.org/10.3126/kumj.v8i4.6242 Kathmandu Univ Med J 2010;8(4):415-19

Download Full-text