1
|
Tresch C, Lallemant M, Nallet C, Offringa Y, Ramanah R, Guerby P, Mottet N. Updating of pelvimetry standards in modern obstetrics. Sci Rep 2024; 14:3080. [PMID: 38321054 PMCID: PMC10847410 DOI: 10.1038/s41598-024-53603-1] [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: 11/09/2022] [Accepted: 02/02/2024] [Indexed: 02/08/2024] Open
Abstract
Clinical value of pelvimetry in modern obstetrics practices has never been established and normal values are set since the middle of the twentieth century. The aim of this study was to describe current dimensions of pelvis in a female French Caucasian population. A retrospective, bi-centric observational study was conducted from August 2013 to August 2019 in two French departments of Obstetrics. We included all Caucasian women who had a computed tomography pelvimetry during pregnancy. The primary outcome was the values of the obstetric transverse diameter, obstetric conjugate diameter and bispinous diameter. Five hundred and fifty-one CT pelvimetries were analyzed. The median Obstetric Transverse Diameter (OTD) was 12.41 cm and the 3rd percentile was 11 cm. The median Obstetric Conjugate Diameter (OCD) was 12.2 cm and the 3rd percentile was 10.5 cm. The median Bispinous Diameter (BSD) in our data collection was 10.9 cm and the 3rd percentile was 9.3 cm. A significant correlation coefficient between women's height and OTD, OCD and BSD was found. In our study, the OCD and the BSD have not evolved since the middle of the twentieth century. The obstetric transverse diameter was smaller than the standard currently used.
Collapse
Affiliation(s)
- Caroline Tresch
- Department of Obstetrics and Gynecology, Besancon University Medical Centre, University of Franche-Comté, Besancon, France.
| | - Marine Lallemant
- Department of Obstetrics and Gynecology, Besancon University Medical Centre, University of Franche-Comté, Besancon, France
| | - Camille Nallet
- Department of Obstetrics and Gynecology, Besancon University Medical Centre, University of Franche-Comté, Besancon, France
| | - Yvonne Offringa
- Department of Obstetrics and Gynecology, Paule de Viguier University Medical Centre, Toulouse III University, Toulouse, France
| | - Rajeev Ramanah
- Department of Obstetrics and Gynecology, Besancon University Medical Centre, University of Franche-Comté, Besancon, France
| | - Paul Guerby
- Department of Obstetrics and Gynecology, Paule de Viguier University Medical Centre, Toulouse III University, Toulouse, France
| | - Nicolas Mottet
- Department of Obstetrics and Gynecology, Besancon University Medical Centre, University of Franche-Comté, Besancon, France
| |
Collapse
|
2
|
Kekki M, Koukkula T, Salonen A, Gissler M, Laivuori H, Huttunen TT, Tihtonen K. Birth injury in breech delivery: a nationwide population-based cohort study in Finland. Arch Gynecol Obstet 2023; 308:1139-1150. [PMID: 36074174 PMCID: PMC10435420 DOI: 10.1007/s00404-022-06772-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 08/25/2022] [Indexed: 11/02/2022]
Abstract
PURPOSE Previous studies have examined the optimal mode of breech delivery extensively, but there is a scarcity of publications focusing on the birth injuries of neonates born in breech presentation. This study aimed to examine birth injury in breech deliveries. METHODS In this retrospective register-based nationwide cohort study, data on birth injuries in vaginal breech deliveries with singleton live births were compared to cesarean section with breech presentation and cephalic vaginal delivery between 2004 and 2017 in Finland. The data were retrieved from the National Medical Birth Register. Primary outcome variables were severe and mild birth injury. Incidences of birth injuries in different gestational ages and birthweights were calculated in different modes of delivery. Crude odds ratios of risk factors for severe birth injury were analyzed. RESULTS In vaginal breech delivery (n = 4344), there were 0.8% of neonates with severe birth injury and 1.5% of neonates with mild birth injury compared to 0.06% and 0.2% in breech cesarean section (n = 16,979) and 0.3% and 1.9% in cephalic vaginal delivery (n = 629,182). Brachial plexus palsy was the most common type of injury in vaginal breech delivery. Increasing gestational age and birthweight had a stronger effect on the risk for injury among cephalic vaginal deliveries than among vaginal breech deliveries. CONCLUSION Birth injuries were rare in vaginal breech deliveries. The incidence of severe birth injury was two times higher in vaginal breech delivery compared to cephalic vaginal delivery. Brachial plexus palsy was the most common type of injury in vaginal breech delivery.
Collapse
Affiliation(s)
- Maiju Kekki
- Department of Obstetrics and Gynecology, Tampere University Hospital, Elämänaukio 2, 33520, Tampere, Finland.
- Center for Child, Adolescent and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
| | - Topias Koukkula
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Orthopaedics and Traumatology, Tampere University Hospital, Tampere, Finland
| | - Anne Salonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Pediatric and Adolescent Surgery, Tampere University Hospital, Tampere, Finland
| | - Mika Gissler
- Department of Knowledge Brokers, Finnish Institute for Health and Welfare, Helsinki, Finland
- Department of Molecular Medicine and Surgery, Karolinska Institute and Region Stockholm, Academic Primary Health Care Centre, Stockholm, Sweden
| | - Hannele Laivuori
- Department of Obstetrics and Gynecology, Tampere University Hospital, Elämänaukio 2, 33520, Tampere, Finland
- Center for Child, Adolescent and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Tuomas T Huttunen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Tampere University Heart Hospital, Tampere University Hospital, Tampere, Finland
| | - Kati Tihtonen
- Department of Obstetrics and Gynecology, Tampere University Hospital, Elämänaukio 2, 33520, Tampere, Finland
- Center for Child, Adolescent and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| |
Collapse
|
3
|
Asymmetric pelvis and term breech presentation: is planned vaginal delivery still a safe option? Arch Gynecol Obstet 2021; 304:919-927. [PMID: 33791843 DOI: 10.1007/s00404-021-06036-4] [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: 05/03/2020] [Accepted: 03/17/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE To evaluate the obstetrical prognosis of term breech delivery in case of asymmetric pelvis. METHODS An observational, comparative, retrospective, bi-centric study of 559 patients who had a computer tomography pelvimetry prior to delivery of a term breech presentation was conducted between August 2013 and August 2019. Patients with an attempted vaginal delivery were divided into two groups: a group of asymmetric pelvis (AP) when the difference between the lengths of both oblique diameters was ≥ 1 cm and a group of symmetric pelvis (SP) when the two oblique diameters differed by < 1 cm. The primary outcome was the rate of vaginal delivery. Secondary outcomes were a composite variable of neonatal and maternal morbidity and mortality. RESULTS Of the 370 patients who attempted a vaginal breech delivery, 8% (n = 29) had an AP and 92% (n = 341) had a SP. In the AP group, the vaginal delivery rate was higher (93% versus 78%, p = 0.05). There was no statistically significant difference in neonatal (3% versus 1% in the AP and SP groups, respectively, p = 0.4) and maternal (17% versus 23% in the AP and SP groups, respectively, p = 0.5) morbidity and mortality. CONCLUSION When a pelvimetry is performed before an attempt of vaginal breech delivery, a difference of less than two centimetres between both oblique diameters does not seem to reduce the rate of vaginal birth and is not an indication for an elective caesarean section.
Collapse
|
4
|
Derisbourg S, Costa E, De Luca L, Amirgholami S, Bogne Kamdem V, Vercoutere A, Zhang WH, Alexander S, Buekens PM, Englert Y, Pintiaux A, Daelemans C. Impact of implementation of a breech clinic in a tertiary hospital. BMC Pregnancy Childbirth 2020; 20:435. [PMID: 32727421 PMCID: PMC7391516 DOI: 10.1186/s12884-020-03122-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 07/21/2020] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND The incidence of breech presentation in single pregnancies at term is between three to 5 %. In order to support eligible women in their choice of mode of delivery, a dedicated breech clinic with a care pathway was developed in December 2015 in a tertiary referral centre in Brussels. The primary objective of this study was to evaluate the vaginal birth rate before and after the introduction of a dedicated breech clinic. The secondary objective was to compare the early neonatal outcomes before and after the breech clinic was introduced. METHODS This was a single centre retrospective and prospective study. The inclusion criteria were term (from 37 weeks), singleton fetus and breech presentation at delivery. The exclusion criteria were suspected intrauterine growth restriction, severe fetal malformations and intrauterine fetal demise. We used a composite outcome as an indicator of neonatal morbidity and mortality. RESULTS After the introduction of the breech clinic, we observed a significant increase in planned vaginal delivery from 7.4% (12/162) to 53.0% (61/115) (OR: 13.5; 95% CI: 6.7-27.0). The effective vaginal breech delivery rate (planned and unexpected) significantly increased from 4.3% (7/162) pre-implementation of breech clinic to 43.5% (50/115) post-implementation (OR: 17.0; 95% CI: 7.3-39.6). Neonatal outcomes were not statistically different between the before and after periods. CONCLUSION The introduction of a dedicated breech clinic has led to an increase in vaginal deliveries for breech babies without adversely affecting neonatal outcomes.
Collapse
Affiliation(s)
- S Derisbourg
- Department of Obstetrics and Gynecology, Cliniques Universitaires de Bruxelles, Hôpital Erasme, Université Libre de Bruxelles (ULB), 808 route de Lennik, B-1070, Bruxelles, Belgium.
| | - E Costa
- Department of Obstetrics and Gynecology, Cliniques Universitaires de Bruxelles, Hôpital Erasme, Université Libre de Bruxelles (ULB), 808 route de Lennik, B-1070, Bruxelles, Belgium
| | - L De Luca
- Department of Obstetrics and Gynecology, Cliniques Universitaires de Bruxelles, Hôpital Erasme, Université Libre de Bruxelles (ULB), 808 route de Lennik, B-1070, Bruxelles, Belgium
| | - S Amirgholami
- Department of Obstetrics and Gynecology, Cliniques Universitaires de Bruxelles, Hôpital Erasme, Université Libre de Bruxelles (ULB), 808 route de Lennik, B-1070, Bruxelles, Belgium
| | - V Bogne Kamdem
- Department of Obstetrics and Gynecology, Cliniques Universitaires de Bruxelles, Hôpital Erasme, Université Libre de Bruxelles (ULB), 808 route de Lennik, B-1070, Bruxelles, Belgium
| | - A Vercoutere
- Department of Obstetrics and Gynecology, Cliniques Universitaires de Bruxelles, Hôpital Erasme, Université Libre de Bruxelles (ULB), 808 route de Lennik, B-1070, Bruxelles, Belgium
| | - W H Zhang
- Research Laboratory for Human Reproduction, Faculty of Medicine, Université Libre de Bruxelles (ULB), 808 route de Lennik, CP 597, B-1070, Bruxelles, Belgium
| | - S Alexander
- Perinatal Epidemiology and Reproductive Health Unit, Epidemiology, Biostatistics and Clinical Research Centre, Ecole de Santé Publique, Université Libre de Bruxelles (ULB), Bruxelles, Belgium
| | - P M Buekens
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, USA
| | - Y Englert
- Department of Obstetrics and Gynecology, Cliniques Universitaires de Bruxelles, Hôpital Erasme, Université Libre de Bruxelles (ULB), 808 route de Lennik, B-1070, Bruxelles, Belgium
- Research Laboratory for Human Reproduction, Faculty of Medicine, Université Libre de Bruxelles (ULB), 808 route de Lennik, CP 597, B-1070, Bruxelles, Belgium
| | - A Pintiaux
- Department of Obstetrics and Gynecology, Cliniques Universitaires de Bruxelles, Hôpital Erasme, Université Libre de Bruxelles (ULB), 808 route de Lennik, B-1070, Bruxelles, Belgium
| | - C Daelemans
- Department of Obstetrics and Gynecology, Cliniques Universitaires de Bruxelles, Hôpital Erasme, Université Libre de Bruxelles (ULB), 808 route de Lennik, B-1070, Bruxelles, Belgium
| |
Collapse
|