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Chen J, Wang L, Xu L, Qian X, Chen X. Association between neutrophil-to-lymphocyte ratio and epidural-related maternal fever in Chinese parturients: a prospective cohort study. J Matern Fetal Neonatal Med 2024; 37:2376657. [PMID: 38977394 DOI: 10.1080/14767058.2024.2376657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 06/28/2024] [Indexed: 07/10/2024]
Abstract
OBJECTIVE Epidural analgesia could increase the risk of maternal fever during labor, and the potential mechanisms involved inflammation. Neutrophil-to-lymphocyte ratio (NLR) was a sensitive inflammatory composite indicator and related to adverse outcomes in parturients. This study aimed to investigate the association between NLR levels and epidural related maternal fever (ERMF). METHODS This prospective cohort study included 614 parturients who underwent epidural analgesia at the Women's Hospital School of Medicine Zhejiang University from November 2021 to May 2023. NLR level was calculated before epidural analgesia for women. The outcome was ERMF. Univariate and multivariate logistic regression models were utilized to explore the association between NLR level and ERMF. And the association was further investigated in subgroups of age, body mass index (BMI) before pregnancy, and parity of delivery. The results were presented as odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS Totally, 614 parturients, of whom 171 (27.85%) had ERMF. High NLR level was associated with higher incidence of ERMF (OR = 2.70, 95% CI: 1.58-4.69). Parturients with ERMF had higher proportion of postpartum hemorrhage, longer labor times, and other adverse outcomes in parturients. The association also observed in subgroups of age <35 years old (OR = 2.74, 95% CI: 1.55-4.29), BMI <24 kg/m2 before pregnancy (OR = 2.32, 95% CI: 1.32-4.13), BMI ≥24 kg/m2 before pregnancy (OR = 38.28, 95%CI: 3.67-854.66), primipara (OR = 2.26, 95% CI:1.27-4.04), and multipara (OR = 30.60, 95% CI: 3.73-734.03). CONCLUSION High NLR levels were associated with ERMF in women. It indicated that physicians may measure NLR levels as a regular measurement, which may beneficial for pregnancy outcomes.
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Affiliation(s)
- Jiaxin Chen
- Department of Anesthesiology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, P.R. China
| | - Liping Wang
- Department of Anesthesiology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, P.R. China
| | - Linglan Xu
- Department of Anesthesiology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, P.R. China
| | - Xiaowei Qian
- Department of Anesthesiology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, P.R. China
| | - Xinzhong Chen
- Department of Anesthesiology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, P.R. China
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Li K, Deng C, Sun D, Wang Y, Li G, Jiang L, Wang T. Predictive value of neutrophil-to-lymphocyte ratio on admission for intrapartum maternal fever in parturients undergoing epidural analgesia: A retrospective cohort study using propensity score-matched analysis. Int J Gynaecol Obstet 2024. [PMID: 39092575 DOI: 10.1002/ijgo.15820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 06/30/2024] [Accepted: 07/16/2024] [Indexed: 08/04/2024]
Abstract
OBJECTIVE To identify the predictive value of the neutrophil-to-lymphocyte ratio (NLR) on admission for intrapartum maternal fever in parturients undergoing epidural analgesia (EA). METHODS In this retrospective cohort study, propensity score matching (PSM) was applied to address covariates. Univariate and multivariate regression analyses were implemented in sequence to find out the factors influencing intrapartum fever. The receiver operating characteristics curve was applied to determine the area under the curve (AUC) of NLR for intrapartum fever. RESULTS NLR and duration of EA were independent risk factors for intrapartum fever. The AUC of the combined indicator (NLR + duration of EA) was higher than that of NLR (AUC = 0.583, 95% confidence interval [CI] 0.53-0.64) and duration of EA (AUC = 0.702, 95% CI 0.66-0.75), reaching 0.715 (95% CI 0.67-0.76; p < 0.001). NLR increased predictive performance for intrapartum fever when added to the duration of EA (net reclassification index 0.076, p = 0.022; integrated discrimination improvement 0.020, p = 0.002). CONCLUSION NLR has limited predictive power for intrapartum fever. The combination of NLR and duration of epidural analgesia may be considered a promising predictor for intrapartum maternal fever in parturients undergoing epidural analgesia. SYNOPSIS The neutrophil-to-lymphocyte ratio is an accessible predictor for the early identification of parturients at risk of intrapartum fever.
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Affiliation(s)
- Kunyue Li
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Chunyun Deng
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Daqi Sun
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yuxia Wang
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Genxia Li
- Department of Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Lihua Jiang
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Tao Wang
- Department of Anesthesiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Yuan J, Jin A, Shen J, Chen Y, Huang Q, Xiang H. Maternal intrapartum fever during epidural labour analgesia: Incidence and influencing factors. Int J Nurs Pract 2024; 30:e13188. [PMID: 37667558 DOI: 10.1111/ijn.13188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 07/14/2023] [Accepted: 07/28/2023] [Indexed: 09/06/2023]
Abstract
BACKGROUND The management and nursing care of women's temperature during delivery is an important part of clinical obstetrics. We aimed to evaluate maternal intrapartum fever during epidural labour analgesia to provide evidence for the management and care of women in labour. METHODS This study was conducted and reported according to the STROBE statement. Women in labour undergoing epidural labour analgesia in our hospital from 1 January 2021 to 31 August 2022 were retrospectively selected. The characteristics of women in labour with and without intrapartum fever were compared. Pearson correlation and logistic regression analysis were used to analyse the influencing factors of postpartum fever. RESULTS A total of 196 women in labour were included, the incidence of maternal intrapartum fever in women in labour undergoing epidural analgesia was 27.5%. Pearson correlation analyses showed that BMI, oxytocin use, labour duration, number of vaginal examinations, time from rupture of the foetal membranes to the end of labour and duration of epidural analgesia were all correlated with the occurrence of intrapartum fever (all P < 0.05). Logistic regression analyses indicated that body mass index ≥28 kg/m2 (OR = 1.825), oxytocin use (OR = 2.082), labour duration ≥9.2 h (OR = 2.613), number of vaginal examinations ≥8 (OR = 2.044-3.115), the time from rupture of the foetal membranes to the end of labour ≥250 min (OR = 2.766) and duration of epidural analgesia ≥300 min (OR = 3.106) were risk factors for intrapartum fever in women in labour undergoing epidural analgesia (all P < 0.05). CONCLUSIONS Maternal intrapartum fever in women in labour undergoing epidural analgesia is common and influenced by many factors. Nurses should take early preventive care measures according to these factors during epidural analgesia in labour.
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Affiliation(s)
- Jinhua Yuan
- Delivery room, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Aiying Jin
- Delivery room, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Jie Shen
- Delivery room, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Youguo Chen
- Delivery room, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Qin Huang
- Delivery room, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Haiyan Xiang
- Delivery room, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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Chang XY, Wang LZ, Xia F, Zhang YF. Factors associated with epidural-related maternal fever in low-risk term women: a systematic review. Int J Obstet Anesth 2023; 56:103915. [PMID: 37625990 DOI: 10.1016/j.ijoa.2023.103915] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 05/22/2023] [Accepted: 07/28/2023] [Indexed: 08/27/2023]
Abstract
BACKGROUND The underlying mechanism of epidural-related maternal fever (ERMF) is not fully understood. This systematic review aimed to identify factors associated with ERMF in low-risk, full-term women using neuraxial analgesia. METHODS PubMed, Embase, Web of Science, CENTRAL, and Wanfang Data were searched from inception to September 10, 2022 with no language restriction. Studies reported descriptive data regarding the factors associated with ERMF. A random effects model meta-analysis was used to pool the raw data of univariate analyses for each identified factor. Sensitivity and subgroup analyses were performed to explore possible sources of heterogeneity. RESULTS Eighteen observational studies involving 33 427 women were included, with 18 factors eligible for meta-analyses. Higher body mass index, baseline temperature, admission maternal interleukin-6 levels and white blood cell counts, nulliparity, increasing gestational age, longer duration of labor and rupture of membranes, increasing number of vaginal examinations, oxytocin use, higher birth weight, lower cervical dilation at initiation of analgesia, and longer analgesia duration were associated with increased risk of ERMF, while intermittent compared with continuous epidural dosing was associated with a decreased risk of ERMF (odds ratio 0.25, 95% CI 0.16 to 0.48, P < 0.001). However, heterogeneity among studies was high and the quality of evidence was low for these meta-analyses, except for intermittent epidural dosing. CONCLUSIONS Many factors are associated with ERMF but may not be independent or causal. Further study is needed to clarify the interactions of these factors in ERMF development and whether modification of these factors might influence risk of ERMF.
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Affiliation(s)
- X Y Chang
- Department of Anesthesiology, Jiaxing Maternity and Children Health Care Hospital, Affiliated Women and Children Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - L Z Wang
- Department of Anesthesiology, Jiaxing Maternity and Children Health Care Hospital, Affiliated Women and Children Hospital of Jiaxing University, Jiaxing, Zhejiang, China.
| | - F Xia
- Department of Anesthesiology, Jiaxing Maternity and Children Health Care Hospital, Affiliated Women and Children Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - Y F Zhang
- Department of Anesthesiology, Jiaxing Maternity and Children Health Care Hospital, Affiliated Women and Children Hospital of Jiaxing University, Jiaxing, Zhejiang, China
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Chen Y, Ye X, Wu H, Yuan X, Yu X, Wu H, Wu X, Chen Y. Delivery, maternal and neonatal outcomes in nulliparous women with gestational diabetes undergoing epidural labour analgesia: a propensity score-matched analysis. BMJ Open 2022; 12:e060245. [PMID: 35906056 PMCID: PMC9345031 DOI: 10.1136/bmjopen-2021-060245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVE This study aimed to retrospectively analyse the influence of epidural labour analgesia (ELA) on delivery and maternal and neonatal outcomes in nulliparous women with gestational diabetes mellitus (GDM) using propensity score-matched analysis. DESIGN Retrospective cohort analysis. SETTING Primary care practices in a teaching hospital from March 2018 to October 2021. PARTICIPANTS A total of 816 delivery records of nulliparous women with GDM were collected and retrospectively analysed. INTERVENTIONS ELA and non-ELA (NELA) cohorts were assessed. MAIN OUTCOME MEASURE The primary outcome assessed was delivery type (spontaneous, assisted vaginal or caesarean). The secondary outcomes assessed included labour duration and maternal and neonatal outcomes. RESULTS A total of 137 propensity score-matched pairs of ELA and NELA patients were analysed. ELA was associated with a decreased rate of caesarean section (18.3% vs 46.0% in the ELA vs NELA cohort, respectively; p<0.05) and an increased occurrence of assisted vaginal delivery (35.8% vs 12.4% in the ELA vs NELA cohort, respectively; p<0.05). The duration of the first and total stages of labour was prolonged, the occurrence of postpartum fever increased, and the duration of hospital stay was shortened in those receiving ELA (all p<0.05). Additionally, neonatal birth weight, plasma glucose levels and neonatal macrosomia occurrence increased, while neonatal intensive care unit admissions and neonatal hypoglycaemia decreased in the ELA versus the NELA group (all p<0.05). With respect to other maternal and neonatal outcomes, both cohorts were similar. CONCLUSIONS The use of ELA decreases the rate of caesarean section and improves maternal and neonatal outcomes in nulliparous women with GDM. TRIAL REGISTRATION NUMBER ChiCTR-2000033091.
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Affiliation(s)
- Yu Chen
- Department of Anaesthesiology, Fujian Provincial Jinshan Hospital, Fuzhou, China
- Department of Anaesthesiology, Southern Medical University Nanfang Hospital, Guangzhou, China
- Department of Anaesthesiology, Fujian Medical University, Fuzhou, China
| | - Xin Ye
- Department of Anaesthesiology, Fujian Medical University, Fuzhou, China
| | - Han Wu
- Department of Anaesthesiology, Fujian Provincial Jinshan Hospital, Fuzhou, China
| | - Xueling Yuan
- Department of Anaesthesiology, Fujian Provincial Jinshan Hospital, Fuzhou, China
| | - Xiaofang Yu
- Department of Anaesthesiology, Fujian Provincial Jinshan Hospital, Fuzhou, China
| | - Huanghui Wu
- Department of Anaesthesiology and Perioperative Medicine, Shanghai Fourth People's Hospital Affiliated to Tongji University, Shanghai, China
- Clinical Research Centre for Anaesthesiology and Perioperative Medicine, Shanghai Fourth People's Hospital Affiliated to Tongji University, Shanghai, China
| | - Xiaodan Wu
- Department of Anaesthesiology, Fujian Provincial Jinshan Hospital, Fuzhou, China
- Department of Anaesthesiology, Fujian Medical University, Fuzhou, China
| | - Yanqing Chen
- Department of Anaesthesiology, Fujian Provincial Jinshan Hospital, Fuzhou, China
- Department of Anaesthesiology, Fujian Medical University, Fuzhou, China
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