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Infectious morbidity is higher after second-stage compared with first-stage cesareans.

ABSTRACT: The objective of the study was to compare maternal and neonatal infectious morbidity following cesareans performed in the second and first stages of labor.We conducted a retropective cohort study of all consecutive, singleton, term, cesarean deliveries in laboring women in a single institution from 2005 to 2012. Second-stage cesareans were defined as those performed at complete cervical dilation (10 cm), and first-stage cesareans were those performed before 10 cm cervical dilation. The primary outcome was endometritis. Rates of infectious morbidity were compared in the 2 groups. Multivariable logistic regression was used to calculate adjusted risk estimates.Of 2505 cesareans meeting inclusion criteria, 400 (16.0%) were performed in the second stage, whereas 2105 (84.0%) were performed in the first stage of labor. The risk of endometritis was nearly 3-fold higher in second- compared with first-stage cesareans (4.25% vs 1.52%; crude odds ratio, 2.88; 95% confidence interval, 1.58-5.23). The risk remained significantly higher after controlling for confounders (adjusted odds ratio, 2.78; 95% confidence interval, 1.51-5.09).Second-stage cesarean is associated with an increased risk of endometritis compared with first-stage cesarean. Further studies will determine whether different infection preventive strategies are needed at second-stage cesareans to reduce endometritis.

SUBMITTER: Tuuli MG

PROVIDER: S-EPMC4410720 | biostudies-other | 2014 Oct

REPOSITORIES: biostudies-other

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Infectious morbidity is higher after second-stage compared with first-stage cesareans.

Tuuli Methodius G MG Liu Lucy L Longman Ryan E RE Odibo Anthony O AO Macones George A GA Cahill Alison G AG

American journal of obstetrics and gynecology 20140318 4

<h4>Objective</h4>The objective of the study was to compare maternal and neonatal infectious morbidity following cesareans performed in the second and first stages of labor.<h4>Study design</h4>We conducted a retropective cohort study of all consecutive, singleton, term, cesarean deliveries in laboring women in a single institution from 2005 to 2012. Second-stage cesareans were defined as those performed at complete cervical dilation (10 cm), and first-stage cesareans were those performed before ...[more]

PMID: 24657794

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Project description:OBJECTIVE:To assess the morbidity associated with continuing the second-stage duration of labor, weighing the probability of spontaneous vaginal birth without morbidity compared with birth with serious maternal or neonatal complications. METHODS:In a retrospective cohort, we analyzed singleton, vertex births at 36 weeks of gestation or greater without prior cesarean delivery (n=43,810 nulliparous and 59,605 multiparous women). We calculated rates of spontaneous vaginal birth and composite serious maternal or neonatal complications. Results were stratified by parity (nulliparous or multiparous) and epidural status (yes or no). Competing risks models were created for 1) spontaneous vaginal birth with no morbidity, 2) birth with maternal or neonatal morbidity, and 3) no spontaneous vaginal birth and no morbidity, and our main interest was in comparing number 1 against number 2. RESULTS:Rates of spontaneous vaginal birth without morbidity were slightly higher after the first half hour (greater than 0.5-1.0 hours) for nulliparous women, after which rates decreased with increasing second-stage duration. For multiparous women, rates of spontaneous vaginal birth without morbidity decreased with increasing second-stage duration. For illustration, for a nulliparous woman with an epidural at 3.0 hours of the second stage of labor who extended by another 1.0 hour, her likelihood of delivering by spontaneous vaginal birth was 31.4% compared with her likelihood of birth with any serious complication in the subsequent hour, which was 7.6%. The percentage of cesarean deliveries for nonreassuring fetal heart rate tracing were higher for women without compared with women with an epidural. CONCLUSION:Rates of spontaneous vaginal birth without serious morbidity steadily decreased for increasing second-stage duration except for the first half hour for nulliparous women. We did not observe an inflection point at a particular hour mark for either spontaneous vaginal delivery without morbidity or births with morbidity. Our findings will assist in decision-making for extending second-stage duration.

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Infectious morbidity is higher after second-stage compared with first-stage cesareans.

Publications

Infectious morbidity is higher after second-stage compared with first-stage cesareans.

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