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Nishikawa S, Miki M, Chigusa Y, Furuta M, Kido A, Kawamura Y, Ueda Y, Mandai M, Mogami H. Obstetric pelvimetry by three-dimensional computed tomography in non-pregnant Japanese women: a retrospective single-center study. J Matern Fetal Neonatal Med 2023; 36:2190444. [PMID: 36927362 DOI: 10.1080/14767058.2023.2190444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
OBJECTIVE While a basic understanding of pelvic size and typology is still important for obstetricians, pelvic measurement data for Japanese women are very scarce. To our best knowledge, no large-scale pelvimetry studies of Japanese women have been made for the past 50 years. This study aimed to investigate the accurate size, particularly the obstetric conjugate (OC) and transverse diameter of the pelvic inlet (TD), of modern Japanese women, using three-dimensional (3D) computed tomography (CT), and to obtain their reference values. METHODS This retrospective, single-center observational study enrolled Japanese non-pregnant women aged between 20 and 40 years, who underwent pelvic CT examination from 2016 to 2021. CT was performed for various reasons, including acute abdomen, search for cancer metastases, and follow-up of existing disease. However, no cases were taken for pelvic measurements. Pelvimetry was performed retrospectively using a 3D workstation. The OC was measured on a strict lateral view and the TD was measured on an axial-oblique view. Other clinical data, such as age, height, and weight, were also extracted from the medical charts and analyzed. RESULTS A total of 1,263 patients were enrolled, with the mean age of 32.7 years (standard deviation [SD] 6.2). The mean height, weight, and body mass index were 158.8 cm (SD 5.8), 54.8 kg (SD 11.7), and 21.7 kg/m2 (SD 4.4), respectively. The mean OC length was 127.0 mm (SD 9.5, 95% confidence interval [CI] 126.5-127.5), while the mean TD length was 126.8 mm (SD 7.5, 95% CI 126.4-127.2). Both values were normally distributed. Height was significantly associated with OC (regression coefficient = 0.75 [95% CI 0.66-0.84], p < .001) and TD (regression coefficient = 0.63 [95% CI 0.56-0.70], p < .001). Age showed a weak but statistically significant positive association with TD (regression coefficient = 0.14 [95% CI 0.07-0.20], p < .001) and OC (regression coefficient = -0.10 [95% CI -0.18 to -0.01], p = .026). CONCLUSION The 3D CT pelvimetry in 1,263 non-pregnant Japanese women of childbearing age revealed the mean OC and TD of 127.0 mm, and 126.8 mm, which were 11.8 mm and 4.3 mm larger, respectively, than those in the survey in 1972. Our data will be referred to in clinical practice as the standard pelvic measurement values for the Japanese population.
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Affiliation(s)
- Shoko Nishikawa
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masayo Miki
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yoshitsugu Chigusa
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Marie Furuta
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Aki Kido
- Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yosuke Kawamura
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yusuke Ueda
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masaki Mandai
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Haruta Mogami
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Adeyanju BT, Aduloju OP, Okunola TO, Ojo IO. Head circumference, as predictor of cephalopelvic disproportion: A prospective analysis of cases of spontaneous vaginal delivery and caesarean section in Ekiti State, Nigeria. Afr J Reprod Health 2023; 27:154-159. [PMID: 37694713 DOI: 10.29063/ajrh2023/v27i6s.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Cephalopelvic disproportion (CPD) is a previously undiagnosed anatomical misfit between maternal pelvis and the fetal head. It is one of the major indications for cesarean section (CS), especially in sub-Saharan Africa. Early diagnosis, could avert events that can increase maternal and perinatal morbidity and mortality associated with this condition. This study was designed to determine the mean head circumference of the fetus in relation to CPD as an indicator for caesarean section. A total of 350 parturients who had spontaneous vaginal deliveries (group A) were compared with another 350 parturients who had cephalopelvic disproportion leading to CS (group B). The socio-demographic characteristics, delivery parameters, head circumference, fetal weight and length were recorded in a proforma and analyzed using SPSS version 21. P value was set at 0.05. The mean head circumference for the all the babies delivered in this study was 34.6 ±1.7cm. The mean head circumference of babies delivered to women with CPD via caeserean section compared to those who had vaginal delivery was significantly greater (35.15±1.5 vs 34.1±1.8, mean difference 1.9±0.1, X2,0.308 p <0.001). The cut-off for diagnosis of cephalopelvic disproportion was head circumference 34.8cm which has a specificity of about 74% and sensitivity of 88% with area under the curve being 66%. The study demonstrated that when the head circumference of a baby is 34.8cm and above, the risk of having cephalopelvic disproportion leading to a CS is high with sensitivity of 88% and specificity of about 74%.
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Affiliation(s)
- Benedict T Adeyanju
- Department of Obstetrics and Gynaecology, Afe Babalola University/ ABUADMulti-system Hospital, Ado-Ekiti, Nigeria
| | - Olusola P Aduloju
- Department of Obstetrics and Gynaecology, Ekiti State University, Ado-Ekiti, Nigeria
| | - Temitope O Okunola
- Department of Obstetrics and Gynaecology, Ekiti State University, Ado-Ekiti, Nigeria
| | - Ibukun O Ojo
- Department of Dental surgery, Afe Babalola University/ ABUADMulti-system Hospital, Ado-Ekiti, Nigeria
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Zhang N, Wu J. The "Hand as Foot" teaching method in physical examination of cephalopelvic disproportion. Asian J Surg 2023; 46:1494-1495. [PMID: 36184281 DOI: 10.1016/j.asjsur.2022.09.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 09/14/2022] [Indexed: 11/02/2022] Open
Affiliation(s)
- Nannan Zhang
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital, Binzhou, Shandong province, 256600, China
| | - Jisheng Wu
- Department of Rheumatology and Immunology, Binzhou Medical University Hospital, Binzhou, Shandong province, 256600, China.
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Jaufuraully S, Dromey B, Story L, David AL, Attilakos G, Siassakos D. Magnetic resonance imaging in late pregnancy to improve labour and delivery outcomes - a systematic literature review. BMC Pregnancy Childbirth 2022; 22:949. [PMID: 36536322 PMCID: PMC9761997 DOI: 10.1186/s12884-022-05290-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Magnetic resonance imaging (MRI) provides excellent soft tissue visualisation which may be useful in late pregnancy to predict labour outcome and maternal/neonatal birth trauma. OBJECTIVE To study if MRI in late pregnancy can predict maternal and neonatal outcomes of labour and birth. METHODS Systematic review of studies that performed MRI in late pregnancy or immediately postpartum. Studies were included if they imaged maternal pelvic or neonatal structures and assessed birth outcome. Meta-analysis was not performed due to the heterogeneity of studies. RESULTS Eighteen studies were selected. Twelve studies explored the value of MRI pelvimetry measurement and its utility to predict cephalopelvic disproportion (CPD) and vaginal breech birth. Four explored cervical imaging in predicting time interval to birth. Two imaged women in active labour and assessed mouldability of the fetal skull. No marker of CPD had both high sensitivity and specificity for predicting labour outcome. The fetal pelvic index yielded sensitivities between 59 and 60%, and specificities between 34 to 64%. Similarly, although the sensitivity of the cephalopelvic disproportion index in predicting labour outcome was high (85%), specificity was only 56%. In women with breech presentation, MRI was demonstrated to reduce the rates of emergency caesarean section from 35 to 19%, and allowed better selection of vaginal breech birth. Live birth studies showed that the fetal head undergoes a substantial degree of moulding and deformation during cephalic vaginal birth, which is not considered during pelvimetry. There are conflicting studies on the role of MRI in cervical imaging and predicting time interval to birth. CONCLUSION MRI is a promising imaging modality to assess aspects of CPD, yet no current marker of CPD accurately predicts labour outcome. With advances in MRI, it is hoped that novel methods can be developed to better identify individuals at risk of obstructed or pathological labour. Its role in exploring fetal head moulding as a marker of CPD should be further explored.
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Affiliation(s)
- Shireen Jaufuraully
- grid.83440.3b0000000121901201Elizabeth Garrett Anderson Institute for Women’s Health, University College London, London, UK ,grid.83440.3b0000000121901201Wellcome / EPSRC Centre for Interventional and Surgical Sciences, University College London, London, UK
| | - Brian Dromey
- grid.83440.3b0000000121901201Elizabeth Garrett Anderson Institute for Women’s Health, University College London, London, UK ,grid.83440.3b0000000121901201Wellcome / EPSRC Centre for Interventional and Surgical Sciences, University College London, London, UK
| | - Lisa Story
- grid.13097.3c0000 0001 2322 6764Department of Women and Children’s Health, School of Life Course Sciences, King’s College London, London, UK ,grid.425213.3Fetal Medicine Unit, St Thomas’ Hospital, London, UK
| | - Anna L David
- grid.83440.3b0000000121901201Elizabeth Garrett Anderson Institute for Women’s Health, University College London, London, UK ,grid.83440.3b0000000121901201Wellcome / EPSRC Centre for Interventional and Surgical Sciences, University College London, London, UK ,grid.451056.30000 0001 2116 3923National Institute for Health Research (NIHR) University College London Hospitals Biomedical Research Centre (BRC), 149 Tottenham Court Road, London, UK
| | - George Attilakos
- grid.83440.3b0000000121901201Elizabeth Garrett Anderson Institute for Women’s Health, University College London, London, UK
| | - Dimitrios Siassakos
- grid.83440.3b0000000121901201Elizabeth Garrett Anderson Institute for Women’s Health, University College London, London, UK ,grid.83440.3b0000000121901201Wellcome / EPSRC Centre for Interventional and Surgical Sciences, University College London, London, UK ,grid.451056.30000 0001 2116 3923National Institute for Health Research (NIHR) University College London Hospitals Biomedical Research Centre (BRC), 149 Tottenham Court Road, London, UK
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Agrawal S, Puri V, Aggarwal K, Singh S, Gupta A, Satija B. Cervical Necrosis and Detachment: A Rare Complication of Labor. J Obstet Gynaecol India 2022; 72:385-386. [PMID: 36457427 PMCID: PMC9701265 DOI: 10.1007/s13224-022-01646-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 03/01/2022] [Indexed: 10/18/2022] Open
Affiliation(s)
- Swati Agrawal
- Department of Obstetrics and Gynecology, Lady Hardinge Medical College and Smt. Sucheta Kriplani Hospital, New Delhi, India
| | - Vinodita Puri
- Department of Obstetrics and Gynecology, Lady Hardinge Medical College and Smt. Sucheta Kriplani Hospital, New Delhi, India
| | - Kiran Aggarwal
- Department of Obstetrics and Gynecology, Lady Hardinge Medical College and Smt. Sucheta Kriplani Hospital, New Delhi, India
| | - Shalini Singh
- Department of Obstetrics and Gynecology, Lady Hardinge Medical College and Smt. Sucheta Kriplani Hospital, New Delhi, India
| | - Aprajita Gupta
- Department of Obstetrics and Gynecology, Lady Hardinge Medical College and Smt. Sucheta Kriplani Hospital, New Delhi, India
| | - Bhawana Satija
- Department of Obstetrics and Gynecology, Lady Hardinge Medical College and Smt. Sucheta Kriplani Hospital, New Delhi, India
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Di Pasquo E, Morganelli G, Volpe N, Labadini C, Ramirez Zegarra R, Abou-Dakn M, Mappa I, Rizzo G, Dall'Asta A, Ghi T. The sonographic measurement of the ratio between the fetal head circumference and the obstetrical conjugate is accurate in predicting the risk of labor arrest: results from a multicenter prospective study. Am J Obstet Gynecol MFM 2022; 4:100710. [PMID: 35964934 DOI: 10.1016/j.ajogmf.2022.100710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/08/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Labor arrest is estimated to account for approximately one-third of all primary cesarean deliveries, and is associated with an increased risk of adverse maternal and perinatal outcomes. One of the main causes is the mismatch between the size of the birth canal and that of the fetus, a condition usually referred to as cephalopelvic disproportion. OBJECTIVE This study aimed to describe a new ultrasound predictor of labor arrest leading to cesarean delivery because of suspected cephalopelvic disproportion. STUDY DESIGN This was a multicenter prospective study conducted at 3 maternity units from January 2021 to January 2022. A nonconsecutive series of singleton pregnancies with cephalic-presenting fetuses, gestational age of 34 weeks+0 days or above, and no contraindication to vaginal delivery attending at the antenatal clinics of each institution were considered eligible. Between 34+0 and 38+0 weeks of gestation, all eligible patients were submitted to transabdominal 2D ultrasound measurement of the obstetrical conjugate. On admission to the labor ward, the fetal head circumference was measured on the standard transthalamic plane by transabdominal ultrasound. The primary outcome of the study was the accuracy of the ratio between the fetal head circumference and the obstetrical conjugate measurement (ie, head circumference/obstetrical conjugate ratio) in predicting the occurrence of cesarean delivery secondary to labor arrest. The secondary outcome was the relationship between the head circumference/obstetrical conjugate ratio and labor duration. RESULTS A total of 263 women were included. Cesarean delivery for labor arrest was performed in 7.6% (20/263) of the included cases and was associated with more frequent use of epidural analgesia (95.0% vs 45.7%; P<.001), longer second stage of labor (193 [120-240] vs 34.0 [13.8-66.5] minutes; P=.002), shorter obstetrical conjugate (111 [108-114] vs 121 [116-125] mm; P<.001), higher head circumference/obstetrical conjugate ratio (3.2 [3.2-3.35] vs 2.9 [2.8-3.0]; P<.001), and higher birthweight (3678 [3501-3916] vs 3352 [3095-3680] g; P=.003) compared with vaginal delivery. At logistic regression analysis, the head circumference/obstetrical conjugate ratio expressed as Z-score was the only parameter independently associated with risk of cesarean delivery for labor arrest (odds ratio, 8.8; 95% confidence interval, 3.6-21.7) and had higher accuracy in predicting cesarean delivery compared with the accuracy of fetal head circumference and obstetrical conjugate alone, with an area under the curve of 0.91 (95% confidence interval, 81.7-99.5; P<.001). A positive correlation between the head circumference/obstetrical conjugate ratio and length of the second stage of labor was found (Pearson coefficient, 0.16; P=.018). CONCLUSION Our study, conducted on an unselected low-risk population, demonstrated that the head circumference/obstetrical conjugate ratio is a reliable antenatal predictor of labor arrest leading to cesarean delivery.
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Affiliation(s)
- Elvira Di Pasquo
- Department of Obstetrics and Gynecology, University Hospital of Parma, Parma, Italy (Drs Di Pasquo, Morganelli, Volpe, Labadini, Ramirez Zegarra, Dall'Asta, and Ghi)
| | - Giovanni Morganelli
- Department of Obstetrics and Gynecology, University Hospital of Parma, Parma, Italy (Drs Di Pasquo, Morganelli, Volpe, Labadini, Ramirez Zegarra, Dall'Asta, and Ghi)
| | - Nicola Volpe
- Department of Obstetrics and Gynecology, University Hospital of Parma, Parma, Italy (Drs Di Pasquo, Morganelli, Volpe, Labadini, Ramirez Zegarra, Dall'Asta, and Ghi)
| | - Corinne Labadini
- Department of Obstetrics and Gynecology, University Hospital of Parma, Parma, Italy (Drs Di Pasquo, Morganelli, Volpe, Labadini, Ramirez Zegarra, Dall'Asta, and Ghi)
| | - Ruben Ramirez Zegarra
- Department of Obstetrics and Gynecology, University Hospital of Parma, Parma, Italy (Drs Di Pasquo, Morganelli, Volpe, Labadini, Ramirez Zegarra, Dall'Asta, and Ghi); Department of Obstetrics and Gynecology, St. Joseph Krankenhaus, Berlin, Germany (Drs Ramirez Zegarra and Abou-Dakn)
| | - Michael Abou-Dakn
- Department of Obstetrics and Gynecology, St. Joseph Krankenhaus, Berlin, Germany (Drs Ramirez Zegarra and Abou-Dakn)
| | - Ilenia Mappa
- Department of Obstetrics and Gynecology Medicine, Fondazione Policlinico Tor Vergata, University of Rome Tor Vergata, Rome, Italy (Drs Mappa and Rizzo)
| | - Giuseppe Rizzo
- Department of Obstetrics and Gynecology Medicine, Fondazione Policlinico Tor Vergata, University of Rome Tor Vergata, Rome, Italy (Drs Mappa and Rizzo)
| | - Andrea Dall'Asta
- Department of Obstetrics and Gynecology, University Hospital of Parma, Parma, Italy (Drs Di Pasquo, Morganelli, Volpe, Labadini, Ramirez Zegarra, Dall'Asta, and Ghi); Department of Medicine and Surgery, Obstetrics and Gynaecology Unit, University of Parma, Parma, Italy (Drs Dall'Asta and Ghi)
| | - Tullio Ghi
- Department of Obstetrics and Gynecology, University Hospital of Parma, Parma, Italy (Drs Di Pasquo, Morganelli, Volpe, Labadini, Ramirez Zegarra, Dall'Asta, and Ghi); Department of Medicine and Surgery, Obstetrics and Gynaecology Unit, University of Parma, Parma, Italy (Drs Dall'Asta and Ghi).
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Bakker W, van Dorp E, Kazembe M, Nkotola A, van Roosmalen J, van den Akker T. Management of prolonged first stage of labour in a low-resource setting: lessons learnt from rural Malawi. BMC Pregnancy Childbirth 2021; 21:398. [PMID: 34022847 PMCID: PMC8141136 DOI: 10.1186/s12884-021-03856-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 05/05/2021] [Indexed: 11/10/2022] Open
Abstract
Background Caesarean sections without medical indication cause substantial maternal and perinatal ill-health, particularly in low-income countries where surgery is often less safe. In presence of adequate labour monitoring and by appropriate use of evidence-based interventions for prolonged first stage of labour, unnecessary caesarean sections can be avoided. We aim to describe the incidence of prolonged first stage of labour and the use of amniotomy and augmentation with oxytocin in a low-resource setting in Malawi. Methods Retrospective analysis of medical records and partographs of all women who gave birth in 2015 and 2016 in a rural mission hospital in Malawi. Primary outcomes were incidence of prolonged first stage of labour based on partograph tracings, caesarean section indications and utilization of amniotomy and oxytocin augmentation. Results Out of 3246 women who gave birth in the study period, 178 (5.2%) crossed the action line in the first stage of labour, of whom 21 (11.8%) received oxytocin to augment labour. In total, 645 women gave birth by caesarean section, of whom 241 (37.4%) with an indication ‘prolonged first stage of labour’. Only 113 (46.9%) of them crossed the action line and in 71/241 (29.5%) membranes were still intact at the start of caesarean section. Excluding the 60 women with prior caesarean sections, 14/181 (7.7%) received oxytocin prior to caesarean section for augmentation of labour. Conclusion The diagnosis prolonged first stage of labour was often made without being evident from labour tracings and two basic obstetric interventions to prevent caesarean section, amniotomy and labour augmentation with oxytocin, were underused. Supplementary Information The online version contains supplementary material available at 10.1186/s12884-021-03856-9.
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Affiliation(s)
- Wouter Bakker
- Clinical and Nursing Department, St. Luke's Hospital, Malosa, Malawi. .,Athena Institute, Faculty of Science, VU University Amsterdam, Amsterdam, The Netherlands.
| | - Elisabeth van Dorp
- Department of Obstetrics and Gynecology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Misheck Kazembe
- Clinical and Nursing Department, St. Luke's Hospital, Malosa, Malawi
| | - Alfred Nkotola
- Clinical and Nursing Department, St. Luke's Hospital, Malosa, Malawi
| | - Jos van Roosmalen
- Athena Institute, Faculty of Science, VU University Amsterdam, Amsterdam, The Netherlands.,Department of Obstetrics and Gynecology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Thomas van den Akker
- Athena Institute, Faculty of Science, VU University Amsterdam, Amsterdam, The Netherlands.,Department of Obstetrics and Gynecology, Leiden University Medical Centre, Leiden, The Netherlands
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Abstract
The vitamin D paradox relates to the lower risk of osteoporosis in people of sub-Saharan African ancestry (Blacks) compared with people of European ancestry (Whites). The paradox implies that for bone health, Blacks require less vitamin D and calcium than Whites do. Why should populations that migrated northward out of Africa have ended up needing more vitamin D than tropical Blacks? Human skin color became lighter away from the tropics to permit greater skin penetration of the UVB light that generates vitamin D. Lack of vitamin D impairs intestinal calcium absorption and limits the amount of calcium that can deposit into the protein matrix of bone, causing rickets or osteomalacia. These can cause cephalopelvic disproportion and death in childbirth. Whiter skin was more fit for reproduction in UV-light restricted environments, but natural selection was also driven by the phenotype of bone per se. Bone formation starts with the deposition of bone-matrix proteins. Mineralization of the matrix happens more slowly, and it stiffens bone. If vitamin D and/or calcium supplies are marginal, larger bones will not be as fully mineralized as smaller bones. For the same amount of mineral, unmineralized or partially mineralized bone is more easily deformed than fully mineralized bone. The evidence leads to the hypothesis that to minimize the soft bone that causes pelvic deformation, a decrease in amount of bone, along with more rapid mineralization of osteoid improved reproductive fitness in Whites. Adaptation of bone biology for reproductive fitness in response to the environmental stress of limited availability of vitamin D and calcium came at the cost of greater risk of osteoporosis later in life.
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Affiliation(s)
- R Vieth
- Department of Laboratory Medicine and Pathobiology, and Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Medical Sciences Building, 5th Floor, Room 5253A 1 King's College Circle, Toronto, Ontario, M5S 1A8, Canada.
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Chaturvedi A, Chaturvedi A, Stanescu AL, Blickman JG, Meyers SP. Mechanical birth-related trauma to the neonate: An imaging perspective. Insights Imaging 2018; 9:103-18. [PMID: 29356945 DOI: 10.1007/s13244-017-0586-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 12/06/2017] [Accepted: 12/08/2017] [Indexed: 12/18/2022] Open
Abstract
Mechanical birth-related injuries to the neonate are declining in incidence with advances in prenatal diagnosis and care. These injuries, however, continue to represent an important source of morbidity and mortality in the affected patient population. In the United States, these injuries are estimated to occur among 2.6% of births. Although more usual in context of existing feto-maternal risk factors, their occurrence can be unpredictable. While often superficial and temporary, functional and cosmetic sequelae, disability or even death can result as a consequence of birth-related injuries. The Agency for Healthcare research and quality (AHRQ) in the USA has developed, through expert consensus, patient safety indicators which include seven types of birth-related injuries including subdural and intracerebral hemorrhage, epicranial subaponeurotic hemorrhage, skeletal injuries, injuries to spine and spinal cord, peripheral and cranial nerve injuries and other types of specified and non-specified birth trauma. Understandably, birth-related injuries are a source of great concern for the parents and clinician. Many of these injuries have imaging manifestations. This article seeks to familiarize the reader with the clinical spectrum, significance and multimodality imaging appearances of neonatal multi-organ birth-related trauma and its sequelae, where applicable. Teaching points • Mechanical trauma related to birth usually occurs with pre-existing feto-maternal risk factors. • Several organ systems can be affected; neurologic, musculoskeletal or visceral injuries can occur. • Injuries can be mild and transient or disabling, even life-threatening. • Imaging plays an important role in injury identification and triage of affected neonates.
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Chor CM, Chan WYW, Tse WTA, Sahota DS. Measurement of retropubic tissue thickness using intrapartum transperineal ultrasound to assess cephalopelvic disproportion. Ultrasonography 2017; 37:211-216. [PMID: 29190877 PMCID: PMC6044218 DOI: 10.14366/usg.17003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 08/11/2017] [Indexed: 01/13/2023] Open
Abstract
Purpose First, to describe a new method of assessing cephalopelvic disproportion by measuring the retropubic tissue thickness (RTT), and second, to determine whether RTT was associated with an eventual delivery by cesarean section. Methods Three-dimensional transperineal ultrasound scans were performed on 129 laboring nulliparous women to obtain 3-dimensional volume datasets for assessing RTT. RTT was measured off-line by three operators (A, B, and C) as the shortest distance between the capsule of the pubic symphysis and the outer border of the fetal skull. The intraoperator repeatability of operator A and the interoperator reproducibility among A, B, and C were determined. The RTT in women who were delivered by cesarean section due to failure to progress was compared to that of women who had a vaginal delivery. Results The intraoperator repeatability for RTT was 1.2 mm. The overall RTT interoperator interclass correlation was 0.97 (0.95-0.98). The RTT in women who had a spontaneous, instrumental, or cesarean delivery was 1.16±0.32 cm, 1.12±0.25 cm, and 0.94±0.25 cm, respectively. Women who were delivered by cesarean section had a significantly smaller RTT than women who had a spontaneous delivery (P=0.008). There was no statistically significant difference in RTT between patients who had a normal vaginal delivery and patients who had an instrumental delivery (P=0.990), or between those who had an instrumental delivery and those who had a cesarean delivery after the Bonferroni correction (P=0.120). Conclusion RTT can be measured with satisfactory intraoperator repeatability and interoperator reproducibility. RTT was significantly smaller in women who eventually had a cesarean delivery than in those who had a vaginal delivery.
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Affiliation(s)
- Chung Ming Chor
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong SAR, China
| | - Wai Yin Winnie Chan
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong SAR, China
| | - Wing Ting Ada Tse
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong SAR, China
| | - Daljit Singh Sahota
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong SAR, China
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Abstract
Gestational diabetes mellitus (GDM) is a medical as well as obstetric challenge, which needs person-centered management. The timing of delivery of women with GDM is discussed by various obstetric professional bodies. We highlight pertinent medical, obstetric, and psychosocial factors which may influence the timing of delivery in women with GDM. This commentary proposes a person-centered approach to decide the delivery timing in GDM and supports shared decision-making based upon the individual's biopsychosocial characteristics and environmental factors.
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Affiliation(s)
- Bharti Kalra
- Department of Obstetrics, Bharti Hospital, Karnal, India
| | | | - Sanjay Kalra
- Department of Endocrinology, Bharti Hospital, Karnal, India.
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