Blood Group, antibody screen, fetal maternal hemorrhage tests and Rh(D) immunoglobulin (RhIG) administration are interventions during pregnancy that aid in the prevention of hemolytic disease of the fetus and newborn (HDFN). The timing, frequency, and nature of testing vary across centres due to limited data to inform standards development. Using Delphi methodology, this study aimed to establish guidance for Canadian practice related to prenatal, postnatal and neonatal immunohematologic testing, and RhIG administration, to reduce risk and improve diagnosis of HDFN.
Methods
A national, multidisciplinary Delphi panel rated their agreement with potential guidance statements related to prenatal, postnatal and neonatal immunohematology testing on a 5-point Likert scale during iterative rounds of voting. After each round, responses were analyzed and statements were re-sent to the panel for further ratings until consensus was achieved, defined as Cronbach’s α >0.95 or a maximum of 3 voting rounds. At the conclusion of the Delphi process, statements rated ≥4/5 were included.
Results
In total, 46 experts voted on 49 proposed statements. Consensus was achieved after 3 survey rounds (Cronbach’s α = 0.94), with a 100% response rate throughout. Overall, 44 statements reached consensus. Statements focused on prenatal immunohematology testing (N = 21 statements), maternal–fetal hemorrhage testing and RhIG administration during pregnancy (N = 15), and testing of neonates for surveillance of hyperbilirubinemia secondary to hemolytic disease of the newborn (N = 8).
Conclusions
This Canadian consensus guidance aims to optimize the surveillance of pregnancies at risk of HDFN and the dosing and timing of RhIG administration. It provides actionable recommendations to harmonize practice and support safe, timely, and cost-effective care.
{"title":"Guidance for Prenatal, Postnatal and Neonatal Immunohematology Testing in Canada: Consensus Recommendations from a Modified Delphi Process","authors":"Lani Lieberman MD , Catharine M. Walsh MD , Rebecca Barty MSc , Jeannie Callum MD , Matthew T.S. Yan MD , Heather VanderMeulen MD , Nancy Robitaille MD , Karen Fung Kee Fung MD , Eugene Ng MD , Heather Hume MD , Jon Barrett MD , Robyn Berman RM , Melanie Colpitts MD , Erin Dowe RN , Barbra de Vrijer MD , Susan Ellis MD , Poh Nyuk Fam MD , Kirsten Grabowska MD , Batya Grundland MD , JoAnn Harrold MD , Gwen Clarke MD","doi":"10.1016/j.jogc.2025.103088","DOIUrl":"10.1016/j.jogc.2025.103088","url":null,"abstract":"<div><h3>Objectives</h3><div>Blood Group, antibody screen, fetal maternal hemorrhage tests and Rh(D) immunoglobulin (RhIG) administration are interventions during pregnancy that aid in the prevention of hemolytic disease of the fetus and newborn (HDFN). The timing, frequency, and nature of testing vary across centres due to limited data to inform standards development. Using Delphi methodology, this study aimed to establish guidance for Canadian practice related to prenatal, postnatal and neonatal immunohematologic testing, and RhIG administration, to reduce risk and improve diagnosis of HDFN.</div></div><div><h3>Methods</h3><div>A national, multidisciplinary Delphi panel rated their agreement with potential guidance statements related to prenatal, postnatal and neonatal immunohematology testing on a 5-point Likert scale during iterative rounds of voting. After each round, responses were analyzed and statements were re-sent to the panel for further ratings until consensus was achieved, defined as Cronbach’s α >0.95 or a maximum of 3 voting rounds. At the conclusion of the Delphi process, statements rated ≥4/5 were included.</div></div><div><h3>Results</h3><div>In total, 46 experts voted on 49 proposed statements. Consensus was achieved after 3 survey rounds (Cronbach’s α = 0.94), with a 100% response rate throughout. Overall, 44 statements reached consensus. Statements focused on prenatal immunohematology testing (N = 21 statements), maternal–fetal hemorrhage testing and RhIG administration during pregnancy (N = 15), and testing of neonates for surveillance of hyperbilirubinemia secondary to hemolytic disease of the newborn (N = 8).</div></div><div><h3>Conclusions</h3><div>This Canadian consensus guidance aims to optimize the surveillance of pregnancies at risk of HDFN and the dosing and timing of RhIG administration. It provides actionable recommendations to harmonize practice and support safe, timely, and cost-effective care.</div></div>","PeriodicalId":16688,"journal":{"name":"Journal of obstetrics and gynaecology Canada","volume":"47 9","pages":"Article 103088"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144985823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-01DOI: 10.1016/j.jogc.2025.103087
Anastasija Arechvo PhD , Argyro Syngelaki PhD , Ranjit Akolekar PhD , Peter von Dadelszen DPhil , Kypros H. Nicolaides MD , Laura A. Magee MD
Objectives
This study aimed to compare preeclampsia (PE) risk screening by risk factors and the multivariable competing risks model.
Methods
This prospective cohort study enrolled singleton pregnancies, without major anomalies, and delivering at ≥24 weeks. PE risk was compared between the Fetal Medicine Foundation (FMF) model and clinical risk factors by National Institute for Health and Care Excellence (NICE) guidance, U.K. and “NICE-modified” by adding Black ethnicity and social deprivation (index of multiple deprivation deciles 1–4) as moderate risk factors. To compare screening strategies, we matched the FMF screen-positive rate (SPR) to NICE.
Results
At 11–13 weeks, preterm PE risk was assessed in 44 813 pregnancies; 368 (0.8%) developed preterm PE. At SPR = 7.4%, FMF (vs. NICE) almost tripled preterm PE detection rate (DR) but by more (by 19.8%) among Black women. The FMF model at SPR = 7.4% had DR = 67.7% for preterm PE, similar to NICE-modified screening (67.4%, which had SPR = 40.1%). At 35–36 weeks, subsequent PE risk was assessed in 29 035 pregnancies; 654 (2.3%) developed PE. At SPR = 10.9%, FMF (vs. NICE) more than doubled subsequent PE DR, regardless of index of multiple deprivation or Black ethnicity. FMF at SPR = 10.9% had DR for subsequent PE at least as high (70.5%) as NICE-modified screening (61.5%), which had SPR = 37.4%.
Conclusions
The FMF model detects PE risk similar to risk factor–based screening, with addition of Black ethnicity and social deprivation as moderate risk factors but at substantially lower SPR at 11–13 weeks when aspirin is offered to prevent preterm PE and at 35–36 weeks when timed birth at term may prevent term PE.
{"title":"Preeclampsia Screening Taking Into Account Ethnicity and Socioeconomic Status—A Comparison of the Competing Risks Model and Risk Factor Scoring","authors":"Anastasija Arechvo PhD , Argyro Syngelaki PhD , Ranjit Akolekar PhD , Peter von Dadelszen DPhil , Kypros H. Nicolaides MD , Laura A. Magee MD","doi":"10.1016/j.jogc.2025.103087","DOIUrl":"10.1016/j.jogc.2025.103087","url":null,"abstract":"<div><h3>Objectives</h3><div>This study aimed to compare preeclampsia (PE) risk screening by risk factors and the multivariable competing risks model.</div></div><div><h3>Methods</h3><div>This prospective cohort study enrolled singleton pregnancies, without major anomalies, and delivering at ≥24 weeks. PE risk was compared between the Fetal Medicine Foundation (FMF) model and clinical risk factors by National Institute for Health and Care Excellence (NICE) guidance, U.K. and “NICE-modified” by adding Black ethnicity and social deprivation (index of multiple deprivation deciles 1–4) as moderate risk factors. To compare screening strategies, we matched the FMF screen-positive rate (SPR) to NICE.</div></div><div><h3>Results</h3><div>At 11–13 weeks, preterm PE risk was assessed in 44 813 pregnancies; 368 (0.8%) developed preterm PE. At SPR = 7.4%, FMF (vs. NICE) almost tripled preterm PE detection rate (DR) but by more (by 19.8%) among Black women. The FMF model at SPR = 7.4% had DR = 67.7% for preterm PE, similar to NICE-modified screening (67.4%, which had SPR = 40.1%). At 35–36 weeks, subsequent PE risk was assessed in 29 035 pregnancies; 654 (2.3%) developed PE. At SPR = 10.9%, FMF (vs. NICE) more than doubled subsequent PE DR, regardless of index of multiple deprivation or Black ethnicity. FMF at SPR = 10.9% had DR for subsequent PE at least as high (70.5%) as NICE-modified screening (61.5%), which had SPR = 37.4%.</div></div><div><h3>Conclusions</h3><div>The FMF model detects PE risk similar to risk factor–based screening, with addition of Black ethnicity and social deprivation as moderate risk factors but at substantially lower SPR at 11–13 weeks when aspirin is offered to prevent preterm PE and at 35–36 weeks when timed birth at term may prevent term PE.</div></div>","PeriodicalId":16688,"journal":{"name":"Journal of obstetrics and gynaecology Canada","volume":"47 11","pages":"Article 103087"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144995039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-01DOI: 10.1016/j.jogc.2025.103066
Graeme Smith MD, PhD
{"title":"The Society of Obstetricians and Gynecologists of Canada Annual Clinical and Scientific Conference Highlights Editorial","authors":"Graeme Smith MD, PhD","doi":"10.1016/j.jogc.2025.103066","DOIUrl":"10.1016/j.jogc.2025.103066","url":null,"abstract":"","PeriodicalId":16688,"journal":{"name":"Journal of obstetrics and gynaecology Canada","volume":"47 9","pages":"Article 103066"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144850311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-01DOI: 10.1016/j.jogc.2025.103064
Jeffrey Man Hay Wong MD , Pascal M. Lavoie MD, PhD
{"title":"Respiratory Syncytial Virus Immunization Review for Prenatal Care Providers","authors":"Jeffrey Man Hay Wong MD , Pascal M. Lavoie MD, PhD","doi":"10.1016/j.jogc.2025.103064","DOIUrl":"10.1016/j.jogc.2025.103064","url":null,"abstract":"","PeriodicalId":16688,"journal":{"name":"Journal of obstetrics and gynaecology Canada","volume":"47 9","pages":"Article 103064"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144802392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-01DOI: 10.1016/j.jogc.2025.103080
Nicholas A. Leyland MD, MHCM, Marfy Abousifein BHSc
{"title":"Systemic Inequities in Women’s Health for Providers and Patients: The Impact on Access to Care","authors":"Nicholas A. Leyland MD, MHCM, Marfy Abousifein BHSc","doi":"10.1016/j.jogc.2025.103080","DOIUrl":"10.1016/j.jogc.2025.103080","url":null,"abstract":"","PeriodicalId":16688,"journal":{"name":"Journal of obstetrics and gynaecology Canada","volume":"47 9","pages":"Article 103080"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144985938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Preterm birth (PTB) affects 10% of pregnancies worldwide, causing significant neonatal morbidity and mortality. Biglycan and decorin, essential proteoglycans in fetal membranes, are linked to spontaneous PTB pathophysiology. This study investigates their potential as biomarkers for spontaneous PTB.
Methods
This study included 500 pregnant women from various hospitals. Blood samples were collected, and participants were followed up until delivery. Pregnant women were categorized into groups based on gestational age at birth: moderate PTB, very PTB (vPTB), and term birth (control group). Serum levels of biglycan and decorin were measured using enzyme-linked immunosorbent assay kits. Statistical analysis included analysis of variance, logistic regression, and receiver operating characteristic curve evaluation using SPSS.
Results
Serum levels of biglycan were higher in the vPTB group in the second (82.49 ± 2.86 pg/mL, P = 0.0012) and third trimesters (81.17 ± 2.01 pg/mL, P = 0.0097). In both trimesters, decorin levels were lower in the vPTB group (second: 36.32 ± 0.90 ng/mL, P = 0.0013; third: 34.25 ± 1.86 ng/mL, P = 0.0023). Receiver operating characteristic curve analysis showed fair discriminatory power for decorin in the third trimester (area under the curve = 0.70, P = 0.0021). Multinomial logistic regression further confirmed that both biomarkers (biglycan: OR 1.034, P = 0.001; decorin: OR 0.914, P = 0.001) were significant predictors of PTB.
Conclusions
Reduced amount of decorin and increased concentration of biglycan during pregnancy were associated with enhanced risk of spontaneous PTB. These results support the potential of early gestation serum glycoprotein complex as a predictive model for spontaneous PTB.
导读:早产(PTB)影响全球10%的妊娠,造成显著的新生儿发病率和死亡率。Biglycan和decorin是胎膜中必需的蛋白聚糖,与自发性肺结核的病理生理有关。本研究探讨了它们作为自发性肺结核生物标志物的潜力。方法:本研究包括500名来自不同医院的孕妇。研究人员采集了参与者的血液样本,并对他们进行了随访,直到分娩。孕妇根据出生时的胎龄分为三组:中度早产(mPTB)、重度早产(vPTB)和足月分娩(对照组)。采用酶联免疫吸附试验(ELISA)检测血清多糖和decorin水平。统计分析采用方差分析、logistic回归及SPSS进行ROC曲线评价。结果:vPTB组在妊娠中期(82.49±2.86 pg/mL, P = 0.0012)和妊娠晚期(81.17±2.01 pg/mL, P = 0.0097)血清biglycan水平均较高。vPTB组的Decorin水平在两个妊娠期均较低(第二组:36.32±0.90 ng/mL, P = 0.0013;第三组:34.25±1.86 ng/mL, P = 0.0023)。ROC曲线分析显示,妊娠晚期decorin的区分力较好(AUC = 0.70, P = 0.0021)。多项logistic回归进一步证实了这两种生物标志物(biglycan: OR;1.034, P = 0.001)和decorin: OR; 0.914, P = 0.001)是早产的显著预测因子。结论:妊娠期decorin量的减少和biglycan浓度的升高与自发性早产的风险增加有关。这些结果支持早期妊娠血清糖蛋白复合物作为自发性早产的预测模型的潜力。
{"title":"Serum Biglycan and Decorin as Biomarkers for Preterm Birth: A Prospective Cohort Study","authors":"Sundas Akram Mphil, Kaleem Maqsood PhD, Javeria Malik PhD, Nabila Roohi PhD","doi":"10.1016/j.jogc.2025.103086","DOIUrl":"10.1016/j.jogc.2025.103086","url":null,"abstract":"<div><h3>Objectives</h3><div>Preterm birth (PTB) affects 10% of pregnancies worldwide, causing significant neonatal morbidity and mortality. Biglycan and decorin, essential proteoglycans in fetal membranes, are linked to spontaneous PTB pathophysiology. This study investigates their potential as biomarkers for spontaneous PTB.</div></div><div><h3>Methods</h3><div>This study included 500 pregnant women from various hospitals. Blood samples were collected, and participants were followed up until delivery. Pregnant women were categorized into groups based on gestational age at birth: moderate PTB, very PTB (vPTB), and term birth (control group). Serum levels of biglycan and decorin were measured using enzyme-linked immunosorbent assay kits. Statistical analysis included analysis of variance, logistic regression, and receiver operating characteristic curve evaluation using SPSS.</div></div><div><h3>Results</h3><div>Serum levels of biglycan were higher in the vPTB group in the second (82.49 ± 2.86 pg/mL, <em>P</em> = 0.0012) and third trimesters (81.17 ± 2.01 pg/mL, <em>P</em> = 0.0097). In both trimesters, decorin levels were lower in the vPTB group (second: 36.32 ± 0.90 ng/mL, <em>P</em> = 0.0013; third: 34.25 ± 1.86 ng/mL, <em>P</em> = 0.0023). Receiver operating characteristic curve analysis showed fair discriminatory power for decorin in the third trimester (area under the curve = 0.70, <em>P</em> = 0.0021). Multinomial logistic regression further confirmed that both biomarkers (biglycan: OR 1.034, <em>P</em> = 0.001; decorin: OR 0.914, <em>P</em> = 0.001) were significant predictors of PTB.</div></div><div><h3>Conclusions</h3><div>Reduced amount of decorin and increased concentration of biglycan during pregnancy were associated with enhanced risk of spontaneous PTB. These results support the potential of early gestation serum glycoprotein complex as a predictive model for spontaneous PTB.</div></div>","PeriodicalId":16688,"journal":{"name":"Journal of obstetrics and gynaecology Canada","volume":"47 11","pages":"Article 103086"},"PeriodicalIF":2.2,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144985924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-26DOI: 10.1016/j.jogc.2025.103090
Joan Crane MD, MSc , Donnette O’Brien BN
Objectives
To evaluate the association between maternal BMI, short cervical length (CL) ≤2.50 cm, and spontaneous preterm birth (SPTB) in persons with risk factors for SPTB, including those with a history of excisional cervical procedures or uterine anomalies.
Methods
This retrospective cohort study included asymptomatic pregnant persons with singleton gestations and intact membranes, without a history of SPTB but at increased risk of SPTB (including those with a history of excisional cervical procedures or uterine anomalies), who underwent transvaginal ultrasound assessment of CL between 160 and 236 weeks gestation and had pre-pregnancy BMI (or height and weight) reported. The primary exposure was pre-pregnancy BMI, with the primary outcomes of interest being CL and SPTB. Univariate and multivariate logistic regression analyses were performed to assess the associations between BMI and CL and BMI and SPTB <37 weeks gestation, adjusting for possible confounders.
Results
Of the 407 persons included, 198 (48.6%) had a BMI ≥25.0. BMI ≥25.0 and CL ≤2.50 cm were associated with SPTB <37 weeks gestation (adjusted OR 2.65; 95% CI 1.09–6.43, P = 0.031 and adjusted OR 7.30; 95% CI 2.18–24.50, P = 0.001; respectively). BMI ≥25.0 was not associated with CL ≤2.50 cm in the univariate or multivariate regression analyses (P = 0.29 and P = 0.48, respectively).
Conclusions
In persons with a history of an excisional cervical procedure or uterine anomaly, BMI ≥25.0 is associated with SPTB <37 weeks gestation but is not associated with CL ≤2.50 cm in the second trimester.
{"title":"Association Between Elevated Maternal BMI, Cervical Length, and Spontaneous Preterm Birth in Persons at Increased Risk of Spontaneous Preterm Birth","authors":"Joan Crane MD, MSc , Donnette O’Brien BN","doi":"10.1016/j.jogc.2025.103090","DOIUrl":"10.1016/j.jogc.2025.103090","url":null,"abstract":"<div><h3>Objectives</h3><div>To evaluate the association between maternal BMI, short cervical length (CL) ≤2.50 cm, and spontaneous preterm birth (SPTB) in persons with risk factors for SPTB, including those with a history of excisional cervical procedures or uterine anomalies.</div></div><div><h3>Methods</h3><div>This retrospective cohort study included asymptomatic pregnant persons with singleton gestations and intact membranes, without a history of SPTB but at increased risk of SPTB (including those with a history of excisional cervical procedures or uterine anomalies), who underwent transvaginal ultrasound assessment of CL between 16<sup>0</sup> and 23<sup>6</sup> weeks gestation and had pre-pregnancy BMI (or height and weight) reported. The primary exposure was pre-pregnancy BMI, with the primary outcomes of interest being CL and SPTB. Univariate and multivariate logistic regression analyses were performed to assess the associations between BMI and CL and BMI and SPTB <37 weeks gestation, adjusting for possible confounders.</div></div><div><h3>Results</h3><div>Of the 407 persons included, 198 (48.6%) had a BMI ≥25.0. BMI ≥25.0 and CL ≤2.50 cm were associated with SPTB <37 weeks gestation (adjusted OR 2.65; 95% CI 1.09–6.43, <em>P</em> = 0.031 and adjusted OR 7.30; 95% CI 2.18–24.50, <em>P</em> = 0.001; respectively). BMI ≥25.0 was not associated with CL ≤2.50 cm in the univariate or multivariate regression analyses (<em>P</em> = 0.29 and <em>P</em> = 0.48, respectively).</div></div><div><h3>Conclusions</h3><div>In persons with a history of an excisional cervical procedure or uterine anomaly, BMI ≥25.0 is associated with SPTB <37 weeks gestation but is not associated with CL ≤2.50 cm in the second trimester.</div></div>","PeriodicalId":16688,"journal":{"name":"Journal of obstetrics and gynaecology Canada","volume":"47 10","pages":"Article 103090"},"PeriodicalIF":2.2,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144985900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-26DOI: 10.1016/j.jogc.2025.103089
Jessica Shu Nan Li MD, MPH , Alysha Nensi MD, MSc , Mark H. Yudin MD, MSc
Objectives
Routine viral load (VL) testing is recommended for pregnant people living with HIV (PLWH) to confirm viral suppression antenatally. The exact timing of this varies in practice. To obtain an up-to-date VL immediately prior to delivery, our institution implemented a policy to test VLs for all pregnant PLWH on admission. Our objective was to characterize testing practices since implementation.
Methods
Retrospective chart review of all pregnant PLWH admitted through obstetrical triage at St. Michael’s Hospital in Toronto, Ontario from January 2013 to December 2022. Outcomes of interest included VL completion status, stratified by year and other competing admission tasks.
Results
This study identified 135 admissions. The majority had VLs ordered (61.5%) and drawn (85.9%) on admission. VL ordering improved over the latter half of the study period (44.6% vs. 82.0%, P < 0.001). More VLs were ordered among Group B Streptococcus-negative patients (71.3%) compared to positive (41.4%) (P = 0.031) and among those who received an epidural (74.2% vs. 50.7%, P = 0.020). More VLs were drawn by nurses among patients who delivered during the admission (90.9% vs. 42.9%, P < 0.001) and patients who received an epidural (93.5% vs. 79.5%, P = 0.019).
Conclusions
While the rate of ordering VLs improved over the course of the study, the rate of drawing VLs remained high throughout, indicating that nurses consistently drew the bloodwork irrespective of an actual order. VL testing improved with the introduction of pre-printed orders, and varied by Group B Streptococcus status, epidural usage, and delivery status. These findings offer opportunities to guide future clinical practices on antenatal VL testing.
目的:建议孕妇HIV感染者(PLWH)进行常规病毒载量(VL)检测,以确认产前病毒抑制。具体的时间在实践中是不同的。为了在分娩前立即获得最新的VL,我们机构实施了一项政策,对所有怀孕的PLWH在入院时进行VL测试。我们的目标是描述自实现以来的测试实践。方法:回顾性分析2013年1月至2022年12月在安大略省多伦多市圣迈克尔医院(St. Michael's Hospital)通过产科分诊入院的所有妊娠PLWH。感兴趣的结果包括VL完成状态,按年份和其他竞争入学任务分层。结果:本研究确定了135例入院患者。大多数人在入场时订购了vl(61.5%),并抽取了vl(85.9%)。VL排序在研究后期有所改善(44.6% vs 82.0%, P < 0.001)。gbs阴性患者(71.3%)比阳性患者(41.4%)(P = 0.031)和接受硬膜外麻醉的患者(74.2%对50.7%,P = 0.020)订购了更多的vl。入院时分娩的患者(90.9% vs 42.9%, P < 0.001)和硬膜外麻醉的患者(93.5% vs 79.5%, P = 0.019),护士绘制的vl更多。结论:虽然在整个研究过程中,静脉滴注率有所提高,但抽取静脉滴注率始终保持在较高水平,这表明护士无论实际订单如何都坚持抽血。VL测试随着预先打印的订单的引入而改进,并且根据GBS状态、硬膜外使用和交付状态而变化。这些发现为指导未来产前VL检测的临床实践提供了机会。
{"title":"Viral Load Testing Practices Among Pregnant People Living With HIV on Admission From Obstetrical Triage","authors":"Jessica Shu Nan Li MD, MPH , Alysha Nensi MD, MSc , Mark H. Yudin MD, MSc","doi":"10.1016/j.jogc.2025.103089","DOIUrl":"10.1016/j.jogc.2025.103089","url":null,"abstract":"<div><h3>Objectives</h3><div>Routine viral load (VL) testing is recommended for pregnant people living with HIV (PLWH) to confirm viral suppression antenatally. The exact timing of this varies in practice. To obtain an up-to-date VL immediately prior to delivery, our institution implemented a policy to test VLs for all pregnant PLWH on admission. Our objective was to characterize testing practices since implementation.</div></div><div><h3>Methods</h3><div>Retrospective chart review of all pregnant PLWH admitted through obstetrical triage at St. Michael’s Hospital in Toronto, Ontario from January 2013 to December 2022. Outcomes of interest included VL completion status, stratified by year and other competing admission tasks.</div></div><div><h3>Results</h3><div>This study identified 135 admissions. The majority had VLs ordered (61.5%) and drawn (85.9%) on admission. VL ordering improved over the latter half of the study period (44.6% vs. 82.0%, <em>P</em> < 0.001). More VLs were ordered among Group B <em>Streptococcus</em>-negative patients (71.3%) compared to positive (41.4%) (<em>P</em> = 0.031) and among those who received an epidural (74.2% vs. 50.7%, <em>P</em> = 0.020). More VLs were drawn by nurses among patients who delivered during the admission (90.9% vs. 42.9%, <em>P</em> < 0.001) and patients who received an epidural (93.5% vs. 79.5%, <em>P</em> = 0.019).</div></div><div><h3>Conclusions</h3><div>While the rate of ordering VLs improved over the course of the study, the rate of drawing VLs remained high throughout, indicating that nurses consistently drew the bloodwork irrespective of an actual order. VL testing improved with the introduction of pre-printed orders, and varied by Group B <em>Streptococcus</em> status, epidural usage, and delivery status. These findings offer opportunities to guide future clinical practices on antenatal VL testing.</div></div>","PeriodicalId":16688,"journal":{"name":"Journal of obstetrics and gynaecology Canada","volume":"47 10","pages":"Article 103089"},"PeriodicalIF":2.2,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144985960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-15DOI: 10.1016/j.jogc.2025.103074
Trish Dinh MD, MSc , Salina Kanji MD , Nicola Farnell CRNP , Ruth Ronn MD , Graciella Pio MD , Xin Xu MD , Swati Dixit PhD , Ellen M. Greenblatt MD
Objectives
To assess perspectives of patients referred for urgent oncofertility consultation influencing whether to proceed or decline fertility preservation (FP).
Methods
An online survey was conducted in newly diagnosed cancer patients from August 2021 to July 2023 after an oncofertility consultation. Post-pubertal people with ovaries, a recent cancer diagnosis, and those who were referred for urgent oncofertility preservation consultation were eligible. Primary outcomes were patients’ experiences and final treatment decisions; secondary outcomes included cycle outcomes.
Results
Overall, 67/126 (53.2%) completed the survey and met our study criteria. Median age was 28 years (IQR 29–36). Most referrals were from medical (47.8%; 32/67) and surgical (35.8%; 24/67) oncologists with a median interval of 3 days (IQR 2–6) from referral to consultation. Breast (64.2%; 43/67) and hematological (11.9%; 8/67) cancers were most common. Overall, 55/67 (82.1%) proceeded with cryopreservation, 38/55 (69.1%) oocyte cryopreservation, 12/55 (21.8%) embryo cryopreservation, and 5/55 (9.1%) both. Of those planning chemotherapy/radiation, 42/56 (75%) chose gonadotropin-releasing hormone agonist. Of those who declined cryopreservation, 3 (25%) chose gonadotropin-releasing hormone agonist treatment as the only form of FP; 9/67 (13.4%) chose no FP treatment. The most common reasons for not cryopreserving included: no time to complete FP before cancer treatment (41.7%; 5/12) and delaying cancer treatment (41.7%; 5/12). The most common motivating factors for pursuing FP were concern for future fertility (72.4%; 42/58) and health care provider advice (48.2%; 28/58).
Conclusions
Most patients who received urgent oncofertility counselling proceeded with treatment. Common reasons for declining were timing of FP and delaying oncological treatment.
{"title":"Perspectives and Motivational Factors Surrounding Decision-Making in Women With Cancer Considering Fertility Preservation","authors":"Trish Dinh MD, MSc , Salina Kanji MD , Nicola Farnell CRNP , Ruth Ronn MD , Graciella Pio MD , Xin Xu MD , Swati Dixit PhD , Ellen M. Greenblatt MD","doi":"10.1016/j.jogc.2025.103074","DOIUrl":"10.1016/j.jogc.2025.103074","url":null,"abstract":"<div><h3>Objectives</h3><div>To assess perspectives of patients referred for urgent oncofertility consultation influencing whether to proceed or decline fertility preservation (FP).</div></div><div><h3>Methods</h3><div>An online survey was conducted in newly diagnosed cancer patients from August 2021 to July 2023 after an oncofertility consultation. Post-pubertal people with ovaries, a recent cancer diagnosis, and those who were referred for urgent oncofertility preservation consultation were eligible. Primary outcomes were patients’ experiences and final treatment decisions; secondary outcomes included cycle outcomes.</div></div><div><h3>Results</h3><div>Overall, 67/126 (53.2%) completed the survey and met our study criteria. Median age was 28 years (IQR 29–36). Most referrals were from medical (47.8%; 32/67) and surgical (35.8%; 24/67) oncologists with a median interval of 3 days (IQR 2–6) from referral to consultation. Breast (64.2%; 43/67) and hematological (11.9%; 8/67) cancers were most common. Overall, 55/67 (82.1%) proceeded with cryopreservation, 38/55 (69.1%) oocyte cryopreservation, 12/55 (21.8%) embryo cryopreservation, and 5/55 (9.1%) both. Of those planning chemotherapy/radiation, 42/56 (75%) chose gonadotropin-releasing hormone agonist. Of those who declined cryopreservation, 3 (25%) chose gonadotropin-releasing hormone agonist treatment as the only form of FP; 9/67 (13.4%) chose no FP treatment. The most common reasons for not cryopreserving included: no time to complete FP before cancer treatment (41.7%; 5/12) and delaying cancer treatment (41.7%; 5/12). The most common motivating factors for pursuing FP were concern for future fertility (72.4%; 42/58) and health care provider advice (48.2%; 28/58).</div></div><div><h3>Conclusions</h3><div>Most patients who received urgent oncofertility counselling proceeded with treatment. Common reasons for declining were timing of FP and delaying oncological treatment.</div></div>","PeriodicalId":16688,"journal":{"name":"Journal of obstetrics and gynaecology Canada","volume":"47 10","pages":"Article 103074"},"PeriodicalIF":2.2,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144862771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-14DOI: 10.1016/j.jogc.2025.103076
Kelsey McLaughlin PhD , Melanie C. Audette MD, PhD , Harrison Banner MD, MSc , Jon Barrett MB, MD , Emmanuel Bujold MD, MSc , Honzer Chen MD , Nicole Cohen MD , Tina Delaney MD , Ernesto A. Figueiro-Filho MD, PhD , Rachel A. Gladstone MD, MSc , Venu Jain MD, PhD , Jessica Liauw MD, MSc , Isabelle Malhamé MD, MSc , Elad Mei-Dan MD , Nir Melamed MD, MSc , Kellie E. Murphy MD, MSc , Christopher M. Nash MD , Christy Pylypjuk MD, MSc , Naila Ramji MD, MSc , Anjana Ravi Chandran MSc , John W. Snelgrove MD, MSc
Preeclampsia is a leading cause of maternal morbidity and adverse perinatal outcomes in Canada. Growing evidence supports the novel blood-based biomarker placental growth factor (PlGF) as a diagnostic test to accelerate the timely diagnosis of preeclampsia, enhancing care for hypertensive pregnant patients. Despite national endorsement, challenges like regional disparities and test standardization hinder PlGF implementation. The Canadian PlGF Strategy & Research Consortium convened with representation from clinicians, researchers, and patient partners to discuss the current state of PlGF testing. We universally agreed there is an urgent need to implement diagnostic PlGF testing to improve maternal and perinatal outcomes in Canada.
{"title":"Placental Growth Factor Diagnostic Testing: An Opportunity to Transform Pregnancy Care for Patients With Suspected Preeclampsia in Canada","authors":"Kelsey McLaughlin PhD , Melanie C. Audette MD, PhD , Harrison Banner MD, MSc , Jon Barrett MB, MD , Emmanuel Bujold MD, MSc , Honzer Chen MD , Nicole Cohen MD , Tina Delaney MD , Ernesto A. Figueiro-Filho MD, PhD , Rachel A. Gladstone MD, MSc , Venu Jain MD, PhD , Jessica Liauw MD, MSc , Isabelle Malhamé MD, MSc , Elad Mei-Dan MD , Nir Melamed MD, MSc , Kellie E. Murphy MD, MSc , Christopher M. Nash MD , Christy Pylypjuk MD, MSc , Naila Ramji MD, MSc , Anjana Ravi Chandran MSc , John W. Snelgrove MD, MSc","doi":"10.1016/j.jogc.2025.103076","DOIUrl":"10.1016/j.jogc.2025.103076","url":null,"abstract":"<div><div>Preeclampsia is a leading cause of maternal morbidity and adverse perinatal outcomes in Canada. Growing evidence supports the novel blood-based biomarker placental growth factor (PlGF) as a diagnostic test to accelerate the timely diagnosis of preeclampsia, enhancing care for hypertensive pregnant patients. Despite national endorsement, challenges like regional disparities and test standardization hinder PlGF implementation. The Canadian PlGF Strategy & Research Consortium convened with representation from clinicians, researchers, and patient partners to discuss the current state of PlGF testing. We universally agreed there is an urgent need to implement diagnostic PlGF testing to improve maternal and perinatal outcomes in Canada.</div></div>","PeriodicalId":16688,"journal":{"name":"Journal of obstetrics and gynaecology Canada","volume":"47 10","pages":"Article 103076"},"PeriodicalIF":2.2,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144862772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}