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Behzadifar M, Saki M, Behzadifar M, Mardani M, Yari F, Ebrahimzadeh F, Majidi Mehr H, Abdi Bastami S, Bragazzi NL. Prevalence of exclusive breastfeeding practice in the first six months of life and its determinants in Iran: a systematic review and meta-analysis. BMC Pediatr 2019; 19:384. [PMID: 31656169 PMCID: PMC6815441 DOI: 10.1186/s12887-019-1776-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 10/09/2019] [Indexed: 12/12/2022] Open
Abstract
Background Exclusive breastfeeding (EBF) in the first 6 months of life is the best and most complete option for an infant, in that supplies the vitamins and minerals the baby needs. Several studies in Iran have been conducted concerning the prevalence of EBF. The aim of this study was to determine the prevalence of EBF in the first 6 months of life and associated factors in Iran synthesizing published studies. Methods We searched PubMed/MEDLINE, Embase, Scopus, ISI/Web of Science, the Cochrane Library, Directory of Open Access Journals Directory (DOAJ) and Google Scholar as well as Iranian databases (Barakathns, MagIran and the Scientific Information Database or SID) up to November 2018. The Newcastle-Ottawa Scale was used to assess the quality of studies. Analyses were performed by pooling together studies using DerSimonian-Laird random-effects model with 95% confidence interval. To test for heterogeneity, I2 test was used. The Egger’s regression test and funnel plot were used to evaluate the publication bias. The strength of EBF determinants was assessed computing the Odds-ratios (OR) using the Mantel–Haenszel method. Results In the initial search 725 records were found. Finally, 32 studies were selected based on inclusion/exclusion criteria. The sample size of studies varied between 50 and 63,071 subjects. The overall prevalence of EBF in Iran was 53% (CI 95%; 44–62). The OR for breastfeeding education received before pregnancy was 1.13 (0.94–1.36), for mother’s job 1.01 (0.81–1.27), for education level 1.12 (0.89–1.42), for type of delivery 1.16 (0.98–1.37), and for gender of child 1.03 (0.83–1.28). Conclusion In Iran health policy- and decision-makers should try to take interventions that encourage mothers to use their milk to breastfeed the infants.
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Affiliation(s)
- Meysam Behzadifar
- Social Determinants of Health Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mandana Saki
- Social Determinants of Health Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Masoud Behzadifar
- Health Management and Economics Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Mahnaz Mardani
- Nutritional Health Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Fatemeh Yari
- Department of Midwifery, Faculty of Nursing and Midwifery, Lorestan University of Medical Sciences, Khorrmabad, Iran
| | - Farzad Ebrahimzadeh
- Department of Biostatistics, School of Health and Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Hadis Majidi Mehr
- Department of Public Health, Faculty of Health and Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Shadi Abdi Bastami
- Department of Public Health, Faculty of Health and Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Nicola Luigi Bragazzi
- School of Public Health, Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
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Wetzl RG, Delfino E, Peano L, Gogna D, Vidi Y, Vielmi F, Bianquin E, Cerioli S, Bettinelli ME, Giannì ML, Frassy G, Boris E, Arioni C. A priori choice of neuraxial labour analgesia and breastfeeding initiation success: a community-based cohort study in an Italian baby-friendly hospital. BMJ Open 2019; 9:e025179. [PMID: 30842116 PMCID: PMC6429869 DOI: 10.1136/bmjopen-2018-025179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE To investigate whether the nature of the decision about receiving neuraxial labour analgesia is associated with breastfeeding initiation success (BIS), defined as exclusive breastfeeding until discharge associated with postnatal weight loss <7% at 60 hours from birth. DESIGN Single-centre community-based cohort study. SETTING An Italian baby-friendly hospital, from 1 July 2011 to 22 September 2015. PARTICIPANTS Inclusion criteria: women vaginally delivering singleton cephalic newborns and willing to breastfeed. EXCLUSION CRITERIA women who delivered in uterus-dead fetuses, were single or requested but did not receive neuraxial analgesia. Overall, 775 out of the 3628 enrolled women received neuraxial analgesia. RESULTS Compared with women who tried to cope with labour pain, those who decided a priori to receive neuraxial analgesia had less BIS (planned vaginal birth: 2121/3421 (62.0%), vs 102/207 (49.3%; p<0.001; risk difference (RD), 12.7%); actual vaginal birth: 1924/2994 (64.3%), vs 93/189 (49.2%; p<0.001; RD, 15.1%)). Multivariable analyses with antelabour-only confounders confirmed both associations (planned vaginal birth: relative risk (RR), 0.65; 95% CI, 0.48 to 0.87; actual vaginal birth: RR, 0.59; 95% CI, 0.43 to 0.80). Although women who requested analgesia as a last resort had less BIS than did those successfully coping with labour pain in the bivariable analyses (planned vaginal birth: 1804/2853 (63.2%), vs 317/568 (55.8%; p=0.001; RD, 7.4%); actual vaginal birth: 1665/2546 (65.4%), vs 259/448 (57.8%; p=0.002; RD, 7.6%)), multivariable analyses with either antelabour-only or peripartum confounders did not confirm these associations (planned vaginal birth: RR, 0.99; 95% CI, 0.80 to 1.23; actual vaginal birth: RR, 0.90; 95% CI, 0.69 to 1.16). CONCLUSIONS Compared with trying to cope with labour pain, a priori choice of neuraxial analgesia is negatively associated with BIS. Conversely, compared with having successfully coped with pain, requesting neuraxial analgesia as a last resort is not negatively associated with BIS.
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Affiliation(s)
- Roberto Giorgio Wetzl
- Department of Anaesthesia, Intensive Care, and Out-hospital Emergency, Ospedale Regionale della Valle d'Aosta, Aosta, Valle d'Aosta, Italy
| | - Enrica Delfino
- Department of Anaesthesia, Intensive Care, and Out-hospital Emergency, Ospedale Regionale della Valle d'Aosta, Aosta, Valle d'Aosta, Italy
| | - Luca Peano
- Mother-Child Department, Ospedale Regionale della Valle d'Aosta, Aosta, Valle d'Aosta, Italy
| | - Daniela Gogna
- Department of Anaesthesia, Intensive Care, and Out-hospital Emergency, Ospedale Regionale della Valle d'Aosta, Aosta, Valle d'Aosta, Italy
| | - Yvette Vidi
- Department of Anaesthesia, Intensive Care, and Out-hospital Emergency, Ospedale Regionale della Valle d'Aosta, Aosta, Valle d'Aosta, Italy
| | - Francesca Vielmi
- Mother-Child Department, Ospedale Regionale della Valle d'Aosta, Aosta, Valle d'Aosta, Italy
| | - Eleonora Bianquin
- Mother-Child Department, Ospedale Regionale della Valle d'Aosta, Aosta, Valle d'Aosta, Italy
| | - Serena Cerioli
- Department of Anaesthesia, Intensive Care, and Out-hospital Emergency, Ospedale Regionale della Valle d'Aosta, Aosta, Valle d'Aosta, Italy
| | - Maria Enrica Bettinelli
- Mother and Child Health Unit, Agenzia di Tutela della Salute della Città Metropolitana di Milano, Milano, Italy
| | - Maria Lorella Giannì
- Department of Clinical Sciences and Community Health, Fondazione IRCCS Cà Granda, Study University of Milan, Milano, Italy
| | - Gabriella Frassy
- Department of Anaesthesia, Intensive Care, and Out-hospital Emergency, Ospedale Regionale della Valle d'Aosta, Aosta, Valle d'Aosta, Italy
| | - Elena Boris
- Department of Anaesthesia, Intensive Care, and Out-hospital Emergency, Ospedale Regionale della Valle d'Aosta, Aosta, Valle d'Aosta, Italy
| | - Cesare Arioni
- Mother-Child Department, Ospedale Regionale della Valle d'Aosta, Aosta, Valle d'Aosta, Italy
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Vedagiri Sai R, Singh SI, Qasem F, Nguyen D, Dhir S, Marmai K, Adam R, Jones PM. Onset of labour epidural analgesia with low-dose bupivacaine and different doses of fentanyl. Anaesthesia 2017; 72:1371-1378. [DOI: 10.1111/anae.14000] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2017] [Indexed: 11/30/2022]
Affiliation(s)
- R. Vedagiri Sai
- Department of Anesthesia and Peri-operative Medicine; Western University; London Ontario Canada
| | - S. I. Singh
- Department of Anesthesia and Peri-operative Medicine; Western University; London Ontario Canada
| | - F. Qasem
- Department of Anesthesia and Peri-operative Medicine; Western University; London Ontario Canada
| | - D. Nguyen
- Department of Anesthesia and Peri-operative Medicine; Western University; London Ontario Canada
| | - S. Dhir
- Department of Anesthesia and Peri-operative Medicine; Western University; London Ontario Canada
| | - K. Marmai
- Department of Epidemiology and Biostatistics; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
| | - R. Adam
- Department of Epidemiology and Biostatistics; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
| | - P. M. Jones
- Department of Anesthesia and Peri-operative Medicine; Western University; London Ontario Canada
- Department of Epidemiology and Biostatistics; Schulich School of Medicine and Dentistry; Western University; London Ontario Canada
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French CA, Cong X, Chung KS. Labor Epidural Analgesia and Breastfeeding: A Systematic Review. J Hum Lact 2016; 32:507-20. [PMID: 27121239 DOI: 10.1177/0890334415623779] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 11/27/2015] [Indexed: 11/16/2022]
Abstract
Despite widespread use of epidural analgesia during labor, no consensus has been reached among obstetric and anesthesia providers regarding its effects on breastfeeding. The purpose of this review was to examine the relationship between labor epidural analgesia and breastfeeding in the immediate postpartum period. PubMed, Cochrane Library, and Cumulative Index to Nursing and Allied Health Literature were searched for articles published in 1990 or thereafter, using the search term breastfeeding combined with epidural, labor epidural analgesia, labor analgesia, or epidural analgesia Of 117 articles, 23 described empirical studies specific to labor epidural analgesia and measured a breastfeeding outcome. Results were conflicting: 12 studies showed negative associations between epidural analgesia and breastfeeding success, 10 studies showed no effect, and 1 study showed a positive association. Most studies were observational. Of 3 randomized controlled studies, randomization methods were inadequate in 2 and not evaluable in 1. Other limitations were related to small sample size or inadequate study power; variation and lack of information regarding type and dosage of analgesia or use of other intrapartum interventions; differences in timing, definition, and method of assessing breastfeeding success; or failure to consider factors such as mothers' intention to breastfeed, social support, siblings, or the mother's need to return to work or school. It is also unclear to what extent results are mediated through effects on infant neurobehavior, maternal fever, oxytocin release, duration of labor, and need for instrumental delivery. Clinician awareness of factors affecting breastfeeding can help identify women at risk for breastfeeding difficulties in order to target support and resources effectively.
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Affiliation(s)
- Cynthia A French
- Columbia University, Graduate Program in Nurse Anesthesia, New York, NY, USA Yale New Haven Hospital, New Haven, CT, USA
| | - Xiaomei Cong
- University of Connecticut, School of Nursing, Storrs, CT, USA
| | - Keun Sam Chung
- Department of Anesthesiology, Yale University School of Medicine, New Haven, CT, USA
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Side Effects and Efficacy of Neuraxial Opioids in Pregnant Patients at Delivery: A Comprehensive Review. Drug Saf 2016; 39:381-99. [DOI: 10.1007/s40264-015-0386-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Zuppa AA, Alighieri G, Riccardi R, Cavani M, Iafisco A, Cota F, Romagnoli C. Epidural analgesia, neonatal care and breastfeeding. Ital J Pediatr 2014; 40:82. [PMID: 25432659 PMCID: PMC4335561 DOI: 10.1186/s13052-014-0082-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 10/12/2014] [Indexed: 11/10/2022] Open
Abstract
The objective of our study is to evaluate the correlation between epidural analgesia during labor, start of breastfeeding and type of maternal-neonatal care.Two different assistance models were considered: Partial and Full Rooming-in.In this cohort study, 2480 healthy infants were enrolled, 1519 in the Partial Rooming-in group and 1321 in the Full Rooming-in group; 1223 were born to women subjected to epidural analgesia in labor.In case of Partial Rooming-in the rate of exclusive or prevailing breastfeeding is significant more frequent in newborns born to mothers who didn't receive analgesia. Instead, in case of Full Rooming-in the rate of exclusive or prevailing breastfeeding is almost the same and there's no correlation between the use or not of epidural analgesia.The good start of lactation and the success of breastfeeding seems to be guaranteed by the type of care offered to the couple mother-infant, that reverses any possible adverse effects of the use of epidural analgesia in labor.
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Affiliation(s)
- Antonio Alberto Zuppa
- Department of Pediatric, Division of Neonatology, "A. Gemelli" General Hospital, Largo Agostino Gemelli, 8, 00168, Roma, RM, Italy.
| | - Giovanni Alighieri
- Department of Pediatric, Division of Neonatology, "A. Gemelli" General Hospital, Largo Agostino Gemelli, 8, 00168, Roma, RM, Italy.
| | - Riccardo Riccardi
- Department of Pediatric, Division of Neonatology, "A. Gemelli" General Hospital, Largo Agostino Gemelli, 8, 00168, Roma, RM, Italy.
| | - Maria Cavani
- Department of Pediatric, Division of Neonatology, "A. Gemelli" General Hospital, Largo Agostino Gemelli, 8, 00168, Roma, RM, Italy.
| | - Alma Iafisco
- Department of Pediatric, Division of Neonatology, "A. Gemelli" General Hospital, Largo Agostino Gemelli, 8, 00168, Roma, RM, Italy.
| | - Francesco Cota
- Department of Pediatric, Division of Neonatology, "A. Gemelli" General Hospital, Largo Agostino Gemelli, 8, 00168, Roma, RM, Italy.
| | - Costantino Romagnoli
- Department of Pediatric, Division of Neonatology, "A. Gemelli" General Hospital, Largo Agostino Gemelli, 8, 00168, Roma, RM, Italy.
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Hawkins JL. The 2013 SOAP/FAER/Gertie Marx Honorary Lecture 2013. From print to practice: the evolving nature of obstetric anesthesia. Int J Obstet Anesth 2014; 23:376-82. [PMID: 25266318 DOI: 10.1016/j.ijoa.2014.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 08/16/2014] [Indexed: 10/24/2022]
Affiliation(s)
- J L Hawkins
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO, USA.
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Olza-Fernández I, Marín Gabriel MA, Gil-Sanchez A, Garcia-Segura LM, Arevalo MA. Neuroendocrinology of childbirth and mother-child attachment: the basis of an etiopathogenic model of perinatal neurobiological disorders. Front Neuroendocrinol 2014; 35:459-72. [PMID: 24704390 DOI: 10.1016/j.yfrne.2014.03.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 03/17/2014] [Accepted: 03/24/2014] [Indexed: 12/15/2022]
Abstract
This review focuses on the neuroendocrine mechanisms in the mother and the newborn that are involved in the generation and consolidation of mother-child attachment. The role that different hormones and neurotransmitters play on the regulation of these mechanisms during parturition, the immediate postpartum period and lactation is discussed. Interferences in the initiation of mother-child attachment may have potential long-term effects for the behavior and affection of the newborn. Therefore, the possible consequences of alterations in the physiological neuroendocrine mechanisms of attachment, caused by elective Cesarean section, intrapartum hormonal manipulations, preterm delivery, mother-infant postpartum separation and bottle-feeding instead of breastfeeding are also discussed.
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Affiliation(s)
- Ibone Olza-Fernández
- Department of Psychiatry, Autonomous University of Madrid, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | | | - Alfonso Gil-Sanchez
- Unidad Docente de Salud Mental de la Región de Murcia, Hospital General Universitario Santa María del Rosell de Cartagena, Murcia, Spain
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Mauri PA, Contini NNG, Giliberti S, Barretta F, Consonni D, Negri M, Di Benedetto I. Intrapartum Epidural Analgesia and Onset of Lactation: A Prospective Study in an Italian Birth Centre. Matern Child Health J 2014; 19:511-8. [DOI: 10.1007/s10995-014-1532-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Dozier AM, Howard CR, Brownell EA, Wissler RN, Glantz JC, Ternullo SR, Thevenet-Morrison KN, Childs CK, Lawrence RA. Labor epidural anesthesia, obstetric factors and breastfeeding cessation. Matern Child Health J 2013; 17:689-98. [PMID: 22696104 DOI: 10.1007/s10995-012-1045-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Breastfeeding benefits both infant and maternal health. Use of epidural anesthesia during labor is increasingly common and may interfere with breastfeeding. Studies analyzing epidural anesthesia's association with breastfeeding outcomes show mixed results; many have methodological flaws. We analyzed potential associations between epidural anesthesia and overall breast-feeding cessation within 30 days postpartum while adjusting for standard and novel covariates and uniquely accounting for labor induction. A pooled analysis using Kaplan-Meier curves and modified Cox Proportional Hazard models included 772 breastfeeding mothers from upstate New York who had vaginal term births of healthy singleton infants. Subjects were drawn from two cohort studies (recruited postpartum between 2005 and 2008) and included maternal self-report and maternal and infant medical record data. Analyses of potential associations between epidural anesthesia and overall breastfeeding cessation within 1 month included additional covariates and uniquely accounted for labor induction. After adjusting for standard demographics and intrapartum factors, epidural anesthesia significantly predicted breastfeeding cessation (hazard ratio 1.26 [95% confidence interval 1.10, 1.44], p < 0.01) as did hospital type, maternal age, income, education, planned breastfeeding goal, and breastfeeding confidence. In post hoc analyses stratified by Baby Friendly Hospital (BFH) status, epidural anesthesia significantly predicted breastfeeding cessation (BFH: 1.19 [1.01, 1.41], p < 0.04; non-BFH: 1.65 [1.31, 2.08], p < 0.01). A relationship between epidural anesthesia and breastfeeding was found but is complex and involves institutional, clinical, maternal and infant factors. These findings have implications for clinical care and hospital policies and point to the need for prospective studies.
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Affiliation(s)
- Ann M Dozier
- Department of Community and Preventive Medicine, University of Rochester, Rochester, NY 14642, USA.
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Gizzo S, Di Gangi S, Saccardi C, Patrelli TS, Paccagnella G, Sansone L, Barbara F, D'Antona D, Nardelli GB. Epidural analgesia during labor: impact on delivery outcome, neonatal well-being, and early breastfeeding. Breastfeed Med 2012; 7:262-8. [PMID: 22166068 DOI: 10.1089/bfm.2011.0099] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND The effect of epidural analgesia on labor and effective breastfeeding is still being debated. The aim of this study is to define its impact on the trend of labor, the newborns' well-being, and early breastfeeding. METHODS We considered first-term physiologic pregnant women who delivered by the vaginal route. We divided them into two groups: group A received epidural analgesia during labor, whereas group B received no analgesia. We recorded maternal age, gestational age, modality of delivery, length of labor, and length of active labor. All newborns received skin-to-skin contact; early breastfeeding was encouraged. We recorded data on birth weight and length, Apgar score at minutes 1 and 5, type of crying, neonatal reactivity, and time between birth and exposure to the breast. Statistical significance was considered for p<0.05. RESULTS Of 934 pregnant women who delivered by the vaginal route, 317 patients required labor analgesia, and 245 patients agreed to participate in our study. Only 128 patients met inclusion criteria. We randomized them in 64 women in group A and 64 women in group B. Data on maternal age, gestational age, type of delivery, neonatal birth weight and length, and Apgar score showed no significant differences. Total length of labor was 363.58±62.20 minutes in Group A versus 292.30±64.75 minutes in group B (p<0.001). The length of active labor showed no significant difference. Among neonatal parameters we found a statistically significant difference only for length of first breastfeeding, with a mean duration of <30 minutes in 62.2% in group A versus 29.3% in Group B (p<0.001). CONCLUSIONS Epidural analgesia has little effect on trend of labor and duration of first breastfeed and none on neonatal outcome. A new protocol of epidural analgesia may solve these side effects.
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Affiliation(s)
- Salvatore Gizzo
- Department of Gynecological Sciences and Human Reproduction, University of Padua, Padua, Italy.
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Current World Literature. Curr Opin Obstet Gynecol 2011; 23:481-5. [DOI: 10.1097/gco.0b013e32834dce59] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Loubert C, Hinova A, Fernando R. Update on modern neuraxial analgesia in labour: a review of the literature of the last 5 years. Anaesthesia 2011; 66:191-212. [DOI: 10.1111/j.1365-2044.2010.06616.x] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Reynolds F. Labour analgesia and the baby: good news is no news. Int J Obstet Anesth 2011; 20:38-50. [DOI: 10.1016/j.ijoa.2010.08.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2010] [Revised: 08/02/2010] [Accepted: 08/31/2010] [Indexed: 02/09/2023]
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