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Drabkin M, Fairbrother N, Crighton B, Miller E, Brant R, Riar S, Albert A, Barr RG. Prepartum and postpartum mothers' and fathers' feelings of frustration in response to infant crying. Infant Ment Health J 2024; 45:276-285. [PMID: 38343150 DOI: 10.1002/imhj.22107] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 12/05/2023] [Accepted: 01/29/2024] [Indexed: 04/29/2024]
Abstract
In this cross-sectional study performed in Canada, we evaluated the frustration levels of prepartum and postpartum mother and father couple-pairs. Our goal was to determine if there were differences in frustration levels between mothers and fathers while listening to prolonged infant crying, and further, how frustration levels might differ between prepartum and postpartum samples. Using two discrete groups, prepartum (Sample 1; N = 48) and postpartum (Sample 2; N = 44) mother and father couple-pairs completed 600 s of listening to audio-recorded infant cry sounds. Participants continuously reported their subjective frustration using a computerized Continuous Visual Analog Scale (CVAS). There was no significant difference in frustration responses between mothers and fathers across both prepartum and postpartum samples. Postpartum mothers and fathers experienced greater frustration than their prepartum counterparts, and frustration increased faster in postpartum couples compared to prepartum couples. Informing first-time parents of the universal experiences of frustration to prolonged crying bouts that are characteristic of their infant's early weeks of life may lead to greater understanding towards their infant, and perhaps decreased instances of harmful responses.
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Affiliation(s)
- Meriah Drabkin
- Faculty of Medicine, Queen's University, Kingston, Canada
| | - Nichole Fairbrother
- Department of Psychiatry, Queen Alexandra Centre for Children's Health, University of British Columbia, Victoria, British Columbia, Canada
| | - Brianna Crighton
- Faculty of Medicine, Medical Science Building, University of British Columbia, Vancouver, British Columbia, Canada
| | - Erica Miller
- Faculty of Medicine, BC Women's Hospital & Health Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Rollin Brant
- Department of Statistics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Shivraj Riar
- Surrey Memorial Hospital Endocrinology Group, Surrey, British Columbia, Canada
| | - Arianne Albert
- Women's Health Research Institute, BC Women's Hospital and Health Centre, Vancouver, British Columbia, Canada
| | - Ronald G Barr
- Evidence to Innovation, BC Children's Hospital, Vancouver, British Columbia, Canada
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Kamino D, Widjaja E, Brant R, Ly LG, Mamak E, Chau V, Moore AM, Williams T, Tam EW. Severity and duration of dysglycemia and brain injury among patients with neonatal encephalopathy. EClinicalMedicine 2023; 58:101914. [PMID: 37181414 PMCID: PMC10166778 DOI: 10.1016/j.eclinm.2023.101914] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 03/02/2023] [Accepted: 03/02/2023] [Indexed: 05/16/2023] Open
Abstract
Background Evidence is needed to inform thresholds for glycemic management in neonatal encephalopathy (NE). We investigated how severity and duration of dysglycemia relate to brain injury after NE. Methods A prospective cohort of 108 neonates ≥36 weeks gestational age with NE were enrolled between August 2014 and November 2019 at the Hospital for Sick Children, in Toronto, Canada. Participants underwent continuous glucose monitoring for 72 h, MRI at day 4 of life, and follow-up at 18 months. Receiver operating characteristic curves were used to assess the predictive value of glucose measures (minimum and maximum glucose, sequential 1 mmol/L glucose thresholds) during the first 72 h of life (HOL) for each brain injury pattern (basal ganglia, watershed, focal infarct, posterior-predominant). Linear and logistic regression analyses were used to assess the relationship between abnormal glycemia and 18-month outcomes (Bayley-III composite scores, Child Behavior Checklist [CBCL] T-scores, neuromotor score, cerebral palsy [CP], death), adjusting for brain injury severity. Findings Of 108 neonates enrolled, 102 (94%) had an MRI. Maximum glucose during the first 48 HOL best predicted basal ganglia (AUC = 0.811) and watershed (AUC = 0.858) injury. Minimum glucose was not predictive of brain injury (AUC <0.509). Ninety-one (89%) infants underwent follow-up assessments at 19.0 ± 1.7 months. A glucose threshold of >10.1 mmol/L during the first 48 HOL was associated with 5.8-point higher CBCL Internalizing Composite T-score (P = 0.029), 0.3-point worse neuromotor score (P = 0.035), 8.6-fold higher odds for CP diagnosis (P = 0.014). While the glucose threshold of >10.1 mmol/L during the first 48 HOL was associated with higher odds of the composite outcome of severe disability or death (OR 3.0, 95% CI 1.0-8.4, P = 0.042), it was not associated with the composite outcome of moderate-to-severe disability or death (OR 0.9, 95% CI 0.4-2.2, P = 0.801). All associations with outcome lost significance after adjusting for brain injury severity. Interpretation Maximum glucose concentration in the first 48 HOL is predictive of brain injury after NE. Further trials are needed to assess if protocols to control maximum glucose concentrations improve outcomes after NE. Funding Canadian Institutes for Health Research, National Institutes of Health, and SickKids Foundation.
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Affiliation(s)
- Daphne Kamino
- Neurosciences and Mental Health, SickKids Research Institute, Toronto, ON, M5G 0A4, Canada
| | - Elysa Widjaja
- Neurosciences and Mental Health, SickKids Research Institute, Toronto, ON, M5G 0A4, Canada
- Department of Diagnostic Imaging, The Hospital for Sick Children and University of Toronto, Toronto, ON, M5G 1X8, Canada
| | - Rollin Brant
- BC Children's Hospital Research Institute, Vancouver, BC, V5Z 4H4, Canada
- Department of Statistics, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Linh G. Ly
- Division of Neonatology, Department of Pediatrics, The Hospital for Sick Children and University of Toronto, Toronto, ON, M5G 1X8, Canada
| | - Eva Mamak
- Department of Psychology, The Hospital for Sick Children, Toronto, ON, M5G 1X8, Canada
| | - Vann Chau
- Neurosciences and Mental Health, SickKids Research Institute, Toronto, ON, M5G 0A4, Canada
- Division of Neonatology, Department of Pediatrics, The Hospital for Sick Children and University of Toronto, Toronto, ON, M5G 1X8, Canada
| | - Aideen M. Moore
- Division of Neonatology, Department of Pediatrics, The Hospital for Sick Children and University of Toronto, Toronto, ON, M5G 1X8, Canada
| | - Tricia Williams
- Department of Psychology, The Hospital for Sick Children, Toronto, ON, M5G 1X8, Canada
| | - Emily W.Y. Tam
- Neurosciences and Mental Health, SickKids Research Institute, Toronto, ON, M5G 0A4, Canada
- Division of Neonatology, Department of Pediatrics, The Hospital for Sick Children and University of Toronto, Toronto, ON, M5G 1X8, Canada
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Wood S, Skiffington J, Brant R, Crawford S, Hicks M, Mohammad K, Mrklas KJ, Tang S, Metcalfe A. The REDUCED trial: a cluster randomized trial for REDucing the utilization of CEsarean delivery for dystocia. Am J Obstet Gynecol 2023; 228:S1095-S1103. [PMID: 37164490 DOI: 10.1016/j.ajog.2022.10.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 10/17/2022] [Accepted: 10/24/2022] [Indexed: 03/18/2023]
Abstract
BACKGROUND To reduce cesarean delivery rates in nulliparous women, guidelines for diagnosing nonprogressive labor have been developed by the National Institute of Child Health and Human Development, the American College of Obstetricians and Gynecologists, and the Society for Maternal-Fetal Medicine. These are mainly based on data from the Consortium for Safe Labor study. The guidelines have not been tested in a clinical trial, so the efficacy and safety of this new approach is uncertain. OBJECTIVE This study aimed to assess whether adoption of new guidelines for diagnosing nonprogressing labor would reduce cesarean delivery rates. STUDY DESIGN We conducted a cluster randomized controlled trial of a knowledge translation program of the guidelines in 26 Canadian hospitals (13 control sites and 13 intervention sites). The sites included all intrapartum care sites in Alberta that perform cesarean delivery and deliver at least 70 nulliparous women annually. The baseline period started on January 1, 2015. The intervention was initiated at the first intervention site in January 2017. The follow-up period began at the first intervention site in February 2017 and lasted till February 2020. The primary outcome was the rate of cesarean delivery in nulliparous women with vertex presentation in labor at term. The secondary outcomes included spontaneous vaginal birth and maternal and neonatal safety. The main data source for the primary and secondary outcomes was the Alberta Perinatal Health Program database. The cesarean delivery rates were assessed using repeated measures mixed effects logistic regression applied to individual births. RESULTS The analysis was based on 45,193 deliveries at intervention sites and 43,725 deliveries at control sites. There was no evidence of a decrease in the rate of cesarean delivery in association with the intervention (baseline-adjusted odds ratio, 0.94; 95% confidence interval [0.85-1.05]; P=.259). The rate of spontaneous vaginal delivery increased slightly (baseline-adjusted odds ratio, 1.10; 95% confidence interval, [1.01-1.18]; P=.024). We did not observe any differences in adverse maternal or neonatal outcomes. CONCLUSION Cesarean delivery rates in nulliparous women were not reduced by the application of recent guidelines for the diagnosis of nonprogressive labor. Spontaneous vaginal delivery-a secondary outcome-was increased in the intervention group. The intervention appears to be safe.
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Affiliation(s)
- Stephen Wood
- Departments of Obstetrics and Gynecology, University of Calgary, Calgary, Alberta, Canada; Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.
| | - Janice Skiffington
- Departments of Obstetrics and Gynecology, University of Calgary, Calgary, Alberta, Canada
| | - Rollin Brant
- Department of Statistics, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Susan Crawford
- Alberta Perinatal Health Program, Alberta Health Services, Calgary, Alberta, Canada
| | - Matthew Hicks
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Khorshid Mohammad
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
| | - Kelly J Mrklas
- Strategic Clinical Networks, Provincial Clinical Excellence, Alberta Health Services, Calgary, Alberta, Canada
| | - Selphee Tang
- Department of Obstetrics and Gynecology, Alberta Health Services, Calgary, Alberta, Canada
| | - Amy Metcalfe
- Departments of Obstetrics and Gynecology, University of Calgary, Calgary, Alberta, Canada; Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; Department of Medicine, University of Calgary, Calgary, Alberta, Canada
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Sabr Y, Lisonkova S, Skoll A, Brant R, Velez MP, Joseph KS. Severe maternal morbidity and maternal mortality associated with assisted reproductive technology. J Obstet Gynaecol Can 2022; 44:978-986. [PMID: 35738557 DOI: 10.1016/j.jogc.2022.05.012] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/27/2022] [Accepted: 05/30/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To assess the association between use of assisted reproductive technologies (ART) and severe maternal morbidity and maternal mortality (SMM). METHODS We carried out a cohort study that included all hospital deliveries at ≥20 weeks gestation in Canada (excluding Québec) between April 2009 and March 2018. Outcomes of interest included composite SMM and SMM types (e.g., severe preeclampsia, HELLP syndrome, and eclampsia; severe hemorrhage; acute renal failure). Multivariable regression was used to estimate crude and adjusted rate ratios (RR and aRR) and 95% confidence intervals (CI). RESULTS The study included 2 535 056 women, of whom 72 023 (2.8%) delivered following the use of ART. The composite SMM rate for women who used ART was 34.7 per 1000 deliveries (95% CI 33.0-36.0) versus 11.5 per 1000 deliveries (95% CI 11.4-11.6) for women who did not use ART (RR 3.01; 95% CI 2.89-3.14). ART use was associated with SMM types such as severe preeclampsia, HELLP syndrome, and eclampsia (RR 3.50; 95% CI 3.27-3.73), severe hemorrhage (RR 3.58, 95% CI 3.27-3.92), and acute renal failure (RR 6.79; 95% CI 5.78-7.98). Associations between ART and composite SMM were attenuated but remained elevated after adjusting for maternal characteristics (aRR 2.34; 95% CI 2.24-2.45). Women who used ART and had a multi-fetal pregnancy had a 4.7 times higher rate of composite SMM compared with women who did not use ART and delivered singletons. CONCLUSION Women who deliver following the use of ART have increased risks of SMM and require counselling that includes mention of the lower risks of SMM associated with ART-conceived singleton pregnancy.
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Affiliation(s)
- Yasser Sabr
- Department of Obstetrics and Gynaecology, College of Medicine, King Saud University, Riyadh, Saudi Arabia; Department of Obstetrics and Gynaecology, University of British Columbia and the Children's and Women's Hospital and Health Centre of British Columbia, Vancouver, BC.
| | - Sarka Lisonkova
- Department of Obstetrics and Gynaecology, University of British Columbia and the Children's and Women's Hospital and Health Centre of British Columbia, Vancouver, BC
| | - Amanda Skoll
- Department of Obstetrics and Gynaecology, University of British Columbia and the Children's and Women's Hospital and Health Centre of British Columbia, Vancouver, BC
| | - Rollin Brant
- Department of Statistics, University of British Columbia, Vancouver, BC
| | - Maria P Velez
- Department of Obstetrics and Gynaecology, Queen's University, Kingston, ON
| | - K S Joseph
- Department of Obstetrics and Gynaecology, University of British Columbia and the Children's and Women's Hospital and Health Centre of British Columbia, Vancouver, BC; School of Population and Public Health, University of British Columbia, Vancouver, BC
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Selvanathan T, Guo T, Kwan E, Chau V, Brant R, Synnes AR, Grunau RE, Miller SP. Head circumference, total cerebral volume and neurodevelopment in preterm neonates. Arch Dis Child Fetal Neonatal Ed 2022; 107:181-187. [PMID: 34261769 DOI: 10.1136/archdischild-2020-321397] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 06/25/2021] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To assess the association of head circumference (HC) <10th percentile at birth and discharge from the neonatal intensive care unit (NICU) with neurodevelopment in very preterm (24-32 weeks' gestational age) neonates, and to compare the association of HC and total cerebral volume (TCV) with neurodevelopmental outcomes. DESIGN In a prospective cohort, semiautomatically segmented TCV and manually segmented white matter injury (WMI) volumes were obtained. Multivariable regressions were used to study the association of HC and TCV with neurodevelopmental outcomes, accounting for birth gestational age, WMI and postnatal illness. SETTING Participants born in 2006-2013 at British Columbia Women's Hospital were recruited. PATIENTS 168 neonates had HC measurements at birth and discharge and MRI at term-equivalent age (TEA). 143 children were assessed at 4.5 years. MAIN OUTCOME MEASURES Motor, cognitive and language outcomes at 4.5 years were assessed using the Movement Assessment Battery for Children Second Edition (M-ABC) and Wechsler Preschool and Primary Scale of Intelligence Third Edition Full Scale IQ (FSIQ) and Verbal IQ (VIQ). RESULTS Small birth HC was associated with lower M-ABC and FSIQ scores. In children with small birth HC, small discharge HC was associated with lower M-ABC, FSIQ and VIQ scores, while normal HC at discharge was no longer associated with adverse outcomes. HC strongly correlated with TCV at TEA. TCV did not correlate with outcomes. CONCLUSIONS Small birth HC is associated with poorer neurodevelopment, independent of postnatal illness and WMI. Normalisation of HC during NICU care appears to moderate this risk.
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Affiliation(s)
- Thiviya Selvanathan
- Paediatrics (Neurology), The Hospital for Sick Children, Toronto, Ontario, Canada.,Paediatrics (Neurology), University of Toronto, Toronto, Ontario, Canada
| | - Ting Guo
- Paediatrics (Neurology), The Hospital for Sick Children, Toronto, Ontario, Canada.,Paediatrics (Neurology), University of Toronto, Toronto, Ontario, Canada
| | - Eddie Kwan
- Department of Pharmacy, University of British Columbia, Vancouver, British Columbia, Canada.,BC Women's Hospital and Health Centre and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Vann Chau
- Paediatrics (Neurology), The Hospital for Sick Children, Toronto, Ontario, Canada.,Paediatrics (Neurology), University of Toronto, Toronto, Ontario, Canada
| | - Rollin Brant
- Department of Statistics, The University of British Columbia, Vancouver, British Columbia, Canada.,BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Anne R Synnes
- BC Women's Hospital and Health Centre and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada.,Pediatrics (Neonatology), The University of British Columbia, Vancouver, British Columbia, Canada
| | - Ruth E Grunau
- BC Women's Hospital and Health Centre and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada.,Pediatrics (Neonatology), The University of British Columbia, Vancouver, British Columbia, Canada
| | - Steven P Miller
- Paediatrics (Neurology), The Hospital for Sick Children, Toronto, Ontario, Canada .,Paediatrics (Neurology), University of Toronto, Toronto, Ontario, Canada
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Steif J, Brant R, Sreepada RS, West N, Murthy S, Görges M. Prediction Model Performance With Different Imputation Strategies: A Simulation Study Using a North American ICU Registry. Pediatr Crit Care Med 2022; 23:e29-e44. [PMID: 34560774 PMCID: PMC8719509 DOI: 10.1097/pcc.0000000000002835] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To evaluate the performance of pragmatic imputation approaches when estimating model coefficients using datasets with varying degrees of data missingness. DESIGN Performance in predicting observed mortality in a registry dataset was evaluated using simulations of two simple logistic regression models with age-specific criteria for abnormal vital signs (mentation, systolic blood pressure, respiratory rate, WBC count, heart rate, and temperature). Starting with a dataset with complete information, increasing degrees of biased missingness of WBC and mentation were introduced, depending on the values of temperature and systolic blood pressure, respectively. Missing data approaches evaluated included analysis of complete cases only, assuming missing data are normal, and multiple imputation by chained equations. Percent bias and root mean square error, in relation to parameter estimates obtained from the original data, were evaluated as performance indicators. SETTING Data were obtained from the Virtual Pediatric Systems, LLC, database (Los Angeles, CA), which provides clinical markers and outcomes in prospectively collected records from 117 PICUs in the United States and Canada. PATIENTS Children admitted to a participating PICU in 2017, for whom all required data were available. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Simulations demonstrated that multiple imputation by chained equations is an effective strategy and that even a naive implementation of multiple imputation by chained equations significantly outperforms traditional approaches: the root mean square error for model coefficients was lower using multiple imputation by chained equations in 90 of 99 of all simulations (91%) compared with discarding cases with missing data and lower in 97 of 99 (98%) compared with models assuming missing values are in the normal range. Assuming missing data to be abnormal was inferior to all other approaches. CONCLUSIONS Analyses of large observational studies are likely to encounter the issue of missing data, which are likely not missing at random. Researchers should always consider multiple imputation by chained equations (or similar imputation approaches) when encountering even only small proportions of missing data in their work.
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Affiliation(s)
- Jonathan Steif
- Department of Statistics, University of British Columbia, Vancouver, BC, Canada
| | - Rollin Brant
- Department of Statistics, University of British Columbia, Vancouver, BC, Canada
- Research Institute, BC Children's Hospital, Vancouver, BC, Canada
| | - Rama Syamala Sreepada
- Research Institute, BC Children's Hospital, Vancouver, BC, Canada
- Department of Anesthesiology, Pharmacology & Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Nicholas West
- Research Institute, BC Children's Hospital, Vancouver, BC, Canada
| | - Srinivas Murthy
- Research Institute, BC Children's Hospital, Vancouver, BC, Canada
- Department of Pediatrics, Division of Critical Care, University of British Columbia, Vancouver, BC, Canada
| | - Matthias Görges
- Research Institute, BC Children's Hospital, Vancouver, BC, Canada
- Department of Anesthesiology, Pharmacology & Therapeutics, University of British Columbia, Vancouver, BC, Canada
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Tam EWY, Kamino D, Shatil AS, Chau V, Moore AM, Brant R, Widjaja E. Hyperglycemia associated with acute brain injury in neonatal encephalopathy. Neuroimage Clin 2021; 32:102835. [PMID: 34601311 PMCID: PMC8496301 DOI: 10.1016/j.nicl.2021.102835] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 09/18/2021] [Accepted: 09/20/2021] [Indexed: 12/22/2022]
Abstract
Cohort study of neonatal encephalopathy using continuous glucose monitoring. Higher glucose on day 1 associated with widespread changes in brain microstructure. Lower glucose not associated with brain microstructural changes. No changes in MR spectroscopy found related to higher or lower glucose.
Objective To identify how alterations in glucose levels are associated with regional brain injury in neonatal encephalopathy. Methods This was a prospective cohort study of 102 newborns with neonatal encephalopathy, with continuous glucose monitoring for 72 h. 97 (95%) completed 72 h of therapeutic hypothermia. Brain imaging around day 5 of life included diffusion tensor imaging and MR spectroscopy. Regions of interest were placed for both DTI and MR spectroscopy, and tractography of the optic radiation and corticospinal tract were evaluated. Linear regression models related each MR metric with minimum and maximum glucose values during each day of life, adjusting for 5-minute Apgar scores and umbilical artery pH. Results Higher maximum glucose levels on the first day of life were associated with widespread changes in mean diffusivity in the anterior and posterior white matter, splenium of the corpus callosum, lentiform nucleus, pulvinar nucleus of the thalamus, posterior limb of the internal capsule, and optic radiations, thus including regions traditionally associated with hypoxia–ischemia or hypoglycemia. No associations were found between lower minimum glucose levels and DTI changes in any regions tested, or between glucose levels and MR spectroscopy. Conclusions In this cohort of neonatal encephalopathy with therapeutic hypothermia, higher maximal glucose on the first day of life was associated with widespread microstructural changes, but lower minimum glucose levels were not associated with changes in any of the regions tested. Long-term follow-up will determine if imaging findings translate to long-term outcomes.
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Affiliation(s)
- Emily W Y Tam
- Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, ON, Canada; Neurosciences and Mental Health Program, Hospital for Sick Children Research Institute, Toronto, ON, Canada.
| | - Daphne Kamino
- Neurosciences and Mental Health Program, Hospital for Sick Children Research Institute, Toronto, ON, Canada
| | - Anwar S Shatil
- Neurosciences and Mental Health Program, Hospital for Sick Children Research Institute, Toronto, ON, Canada
| | - Vann Chau
- Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, ON, Canada
| | - Aideen M Moore
- Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, ON, Canada
| | - Rollin Brant
- Department of Statistics, The University of British Columbia, Vancouver, BC, Canada
| | - Elysa Widjaja
- Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, ON, Canada; Neurosciences and Mental Health Program, Hospital for Sick Children Research Institute, Toronto, ON, Canada; Department of Radiology, The Hospital for Sick Children and the University of Toronto, Toronto, ON, Canada
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8
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Muraca GM, Liu S, Sabr Y, Lisonkova S, Skoll A, Brant R, Cundiff GW, Stephansson O, Razaz N, Joseph KS. Episiotomy use among vaginal deliveries and the association with anal sphincter injury: a population-based retrospective cohort study. CMAJ 2020; 191:E1149-E1158. [PMID: 31636163 DOI: 10.1503/cmaj.190366] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2019] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND The rate of obstetric anal sphincter injury has increased in recent years, particularly among operative vaginal deliveries. We sought to characterize temporal trends in episiotomy use and to quantify the association between episiotomy and obstetric anal sphincter injury. METHODS Using a population-based retrospective cohort study design of hospital data from 2004 to 2017, we studied all vaginal deliveries of singleton infants at term gestation in Canada (excluding Quebec). Rates of obstetric anal sphincter injury were contrasted between women who had an episiotomy and those who did not. Log-binomial regression was used to estimate the association between episiotomy and obstetric anal sphincter injury among women with spontaneous and operative vaginal deliveries after controlling for confounders. RESULTS The study population included 2 570 847 deliveries. Episiotomy use declined significantly among operative vaginal deliveries (53.1% in 2004 to 43.2% in 2017, p < 0.0001) and spontaneous vaginal deliveries (13.5% in 2004 to 6.5% in 2017, p < 0.0001). Episiotomy was associated with higher rates of obstetric anal sphincter injury among spontaneous vaginal deliveries (4.8 with episiotomy v. 2.4% without; adjusted rate ratio [RR] 2.06, 95% confidence interval [CI] 2.00-2.11) and this association remained after stratification by parity and obstetric history. In contrast, episiotomy was associated with lower rates of obstetric anal sphincter injury among forceps deliveries in nulliparous women (adjusted RR 0.63, 95% CI 0.61-0.66), and women with vaginal birth after cesarean (adjusted RR 0.71, 95% CI 0.60-0.85), but not among parous women without a previous cesarean (adjusted RR 1.16, 95% CI 1.00-1.34). INTERPRETATION Episiotomy use has declined in Canada for all vaginal deliveries. The protective association between episiotomy and obstetric anal sphincter injury among women who gave birth by operative vaginal delivery (especially forceps) warrants reconsideration of clinical practice among nulliparous women and those attempting vaginal birth after cesarean.
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Affiliation(s)
- Giulia M Muraca
- Clinical Epidemiology Unit, Department of Medicine (Muraca, Stephansson, Razaz), Solna, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden; Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph), University of British Columbia, Vancouver, BC; Maternal, Child and Youth Health Division (Liu), Centre for Surveillance and Applied Research, Public Health Agency of Canada, Ottawa, Ont.; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia; School of Population and Public Health (Lisonkova, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Women's and Children's Health, Division of Obstetrics and Gynaecology (Stephansson), Karolinska Institutet, Stockholm, Sweden
| | - Shiliang Liu
- Clinical Epidemiology Unit, Department of Medicine (Muraca, Stephansson, Razaz), Solna, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden; Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph), University of British Columbia, Vancouver, BC; Maternal, Child and Youth Health Division (Liu), Centre for Surveillance and Applied Research, Public Health Agency of Canada, Ottawa, Ont.; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia; School of Population and Public Health (Lisonkova, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Women's and Children's Health, Division of Obstetrics and Gynaecology (Stephansson), Karolinska Institutet, Stockholm, Sweden
| | - Yasser Sabr
- Clinical Epidemiology Unit, Department of Medicine (Muraca, Stephansson, Razaz), Solna, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden; Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph), University of British Columbia, Vancouver, BC; Maternal, Child and Youth Health Division (Liu), Centre for Surveillance and Applied Research, Public Health Agency of Canada, Ottawa, Ont.; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia; School of Population and Public Health (Lisonkova, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Women's and Children's Health, Division of Obstetrics and Gynaecology (Stephansson), Karolinska Institutet, Stockholm, Sweden
| | - Sarka Lisonkova
- Clinical Epidemiology Unit, Department of Medicine (Muraca, Stephansson, Razaz), Solna, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden; Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph), University of British Columbia, Vancouver, BC; Maternal, Child and Youth Health Division (Liu), Centre for Surveillance and Applied Research, Public Health Agency of Canada, Ottawa, Ont.; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia; School of Population and Public Health (Lisonkova, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Women's and Children's Health, Division of Obstetrics and Gynaecology (Stephansson), Karolinska Institutet, Stockholm, Sweden
| | - Amanda Skoll
- Clinical Epidemiology Unit, Department of Medicine (Muraca, Stephansson, Razaz), Solna, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden; Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph), University of British Columbia, Vancouver, BC; Maternal, Child and Youth Health Division (Liu), Centre for Surveillance and Applied Research, Public Health Agency of Canada, Ottawa, Ont.; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia; School of Population and Public Health (Lisonkova, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Women's and Children's Health, Division of Obstetrics and Gynaecology (Stephansson), Karolinska Institutet, Stockholm, Sweden
| | - Rollin Brant
- Clinical Epidemiology Unit, Department of Medicine (Muraca, Stephansson, Razaz), Solna, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden; Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph), University of British Columbia, Vancouver, BC; Maternal, Child and Youth Health Division (Liu), Centre for Surveillance and Applied Research, Public Health Agency of Canada, Ottawa, Ont.; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia; School of Population and Public Health (Lisonkova, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Women's and Children's Health, Division of Obstetrics and Gynaecology (Stephansson), Karolinska Institutet, Stockholm, Sweden
| | - Geoffrey W Cundiff
- Clinical Epidemiology Unit, Department of Medicine (Muraca, Stephansson, Razaz), Solna, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden; Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph), University of British Columbia, Vancouver, BC; Maternal, Child and Youth Health Division (Liu), Centre for Surveillance and Applied Research, Public Health Agency of Canada, Ottawa, Ont.; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia; School of Population and Public Health (Lisonkova, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Women's and Children's Health, Division of Obstetrics and Gynaecology (Stephansson), Karolinska Institutet, Stockholm, Sweden
| | - Olof Stephansson
- Clinical Epidemiology Unit, Department of Medicine (Muraca, Stephansson, Razaz), Solna, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden; Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph), University of British Columbia, Vancouver, BC; Maternal, Child and Youth Health Division (Liu), Centre for Surveillance and Applied Research, Public Health Agency of Canada, Ottawa, Ont.; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia; School of Population and Public Health (Lisonkova, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Women's and Children's Health, Division of Obstetrics and Gynaecology (Stephansson), Karolinska Institutet, Stockholm, Sweden
| | - Neda Razaz
- Clinical Epidemiology Unit, Department of Medicine (Muraca, Stephansson, Razaz), Solna, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden; Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph), University of British Columbia, Vancouver, BC; Maternal, Child and Youth Health Division (Liu), Centre for Surveillance and Applied Research, Public Health Agency of Canada, Ottawa, Ont.; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia; School of Population and Public Health (Lisonkova, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Women's and Children's Health, Division of Obstetrics and Gynaecology (Stephansson), Karolinska Institutet, Stockholm, Sweden
| | - K S Joseph
- Clinical Epidemiology Unit, Department of Medicine (Muraca, Stephansson, Razaz), Solna, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden; Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph), University of British Columbia, Vancouver, BC; Maternal, Child and Youth Health Division (Liu), Centre for Surveillance and Applied Research, Public Health Agency of Canada, Ottawa, Ont.; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia; School of Population and Public Health (Lisonkova, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Women's and Children's Health, Division of Obstetrics and Gynaecology (Stephansson), Karolinska Institutet, Stockholm, Sweden
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9
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Brubacher JR, Chan H, Erdelyi S, Macdonald S, Asbridge M, Mann RE, Eppler J, Lund A, MacPherson A, Martz W, Schreiber WE, Brant R, Purssell RA. Cannabis use as a risk factor for causing motor vehicle crashes: a prospective study. Addiction 2019; 114:1616-1626. [PMID: 31106494 PMCID: PMC6771478 DOI: 10.1111/add.14663] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 01/21/2019] [Accepted: 05/10/2019] [Indexed: 11/30/2022]
Abstract
AIM We conducted a responsibility analysis to determine whether drivers injured in motor vehicle collisions who test positive for Δ-9-tetrahydrocannabinol (THC) or other drugs are more likely to have contributed to the crash than those who test negative. DESIGN Prospective case-control study. SETTING Trauma centres in British Columbia, Canada. PARTICIPANTS Injured drivers who required blood tests for clinical purposes following a motor vehicle collision. MEASUREMENTS Excess whole blood remaining after clinical use was obtained and broad-spectrum toxicology testing performed. The analysis quantified alcohol and THC and gave semiquantitative levels of other impairing drugs and medications. Police crash reports were analysed to determine which drivers contributed to the crash (responsible) and which were 'innocently involved' (non-responsible). We used unconditional logistic regression to determine the likelihood (odds ratio: OR) of crash responsibility in drivers with 0 < THC < 2 ng/ml, 2 ng/ml ≤ THC < 5 ng/ml and THC ≥ 5 ng/ml (all versus THC = 0 ng/ml). Risk estimates were adjusted for age, sex and presence of other impairing substances. FINDINGS We obtained toxicology results on 3005 injured drivers and police reports on 2318. Alcohol was detected in 14.4% of drivers, THC in 8.3%, other drugs in 8.9% and sedating medications in 19.8%. There was no increased risk of crash responsibility in drivers with THC < 2 ng/ml or 2 ≤ THC < 5 ng/ml. In drivers with THC ≥ 5 ng/ml, the adjusted OR was 1.74 [95% confidence interval (CI) = 0.59-6.36; P = 0.35]. There was significantly increased risk of crash responsibility in drivers with blood alcohol concentration (BAC) ≥ 0.08% (OR = 6.00;95% CI = 3.87-9.75; P < 0.01), other recreational drugs detected (OR = 1.82;95% CI = 1.21-2.80; P < 0.01) or sedating medications detected (OR = 1.45; 95%CI = 1.11-1.91; P < 0.01). CONCLUSIONS In this sample of non-fatally injured motor vehicle drivers in British Columbia, Canada, there was no evidence of increased crash risk in drivers with Δ-9-tetrahydrocannabinol < 5 ng/ml and a statistically non-significant increased risk of crash responsibility (odds ratio = 1.74) in drivers with Δ-9-tetrahydrocannabinol ≥ 5 ng/ml.
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Affiliation(s)
| | | | | | | | | | - Robert E. Mann
- Centre for Addiction and Mental Health, Toronto and University of TorontoTorontoOntarioCanada
| | - Jeffrey Eppler
- Kelowna General Hospital and University of British ColumbiaKelownaBCCanada
| | - Adam Lund
- Royal Columbian Hospital and University of British ColumbiaNew WestminsterBCCanada
| | - Andrew MacPherson
- Victoria General Hospital and University of British ColumbiaVictoriaBCCanada
| | - Walter Martz
- Institute of Forensic Medicine, Justus Liebig UniversityGiessenGermany
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10
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Guan L, Wang Y, Claydon VE, Mazowita G, Wang Y, Brant R, Collet JP. Autonomic Parameter and Stress Profile Predict Secondary Ischemic Events After Transient Ischemic Attack or Minor Stroke. Stroke 2019; 50:2007-2015. [PMID: 31238826 DOI: 10.1161/strokeaha.118.022844] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 01/19/2023]
Abstract
Background and Purpose- Traditional risk factors for ischemic stroke are body stressors that are related to autonomic autonomic system (ANS) dysfunction. The value of ABCD2 score (age, blood pressure, clinical features, duration of symptoms, diabetes) to predict ischemic stroke after transient ischemic attack is compromised by the inclusion of a limited number of stressors. We aimed to assess whether markers of ANS function and stress could predict the occurrence of secondary ischemic events after transient ischemic attack or minor stroke. Methods- This is a prospective cohort study in which 201 patients were recruited within 48 hours after initial transient ischemic attack or minor stroke and followed for 90 days to assess the development of secondary ischemic events. ABCD2 score, heart rate variability (HRV) parameters as markers of ANS function, and psychological stress were assessed. Logistic regression and area under the curve (AUC) were used to assess the models' predictive ability. Results- Morning high frequency (HF) HRV power and changes in HF HRV from morning to afternoon (daytime HF changes) were the most useful HRV predictors for both ischemic events (AUC=0.61 and 0.70) and ischemic stroke (AUC=0.62 and 0.72). Compared with ABCD2 score, 2 HRV-based stress models showed higher predictive ability for ischemic events (AUC=0.82 versus 0.63, 0.76 versus 0.63; P<0.05) and ischemic stroke (AUC=0.87 versus 0.64, 0.82 versus 0.64; P<0.05). Conclusions- Assessing the effects of stress on the ANS may be an innovative way to stratify the risk of ischemic events after transient ischemic attack or minor stroke. New risk stratification by assessing the dynamic features of ANS dysfunction and stress may help identify high-risk sub-populations that may benefit from added management.
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Affiliation(s)
- Ling Guan
- From the Department of Medicine (L.G., J.-P.C.), University of British Columbia, Vancouver, Canada.,BC Children's Hospital Research Institute (L.G., J.-P.C.), University of British Columbia, Vancouver, Canada
| | - Yongjun Wang
- Department of Neurology, Beijing Tiantan Hospital, China (Yongjun Wang, Yilong Wang)
| | - Victoria E Claydon
- Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Canada (V.E.C.)
| | - Garey Mazowita
- Department of Family Practice (G.M.), University of British Columbia, Vancouver, Canada.,Department of Family and Community Medicine, Providence Healthcare, Canada (G.M.)
| | - Yilong Wang
- Department of Neurology, Beijing Tiantan Hospital, China (Yongjun Wang, Yilong Wang)
| | - Rollin Brant
- Department of Statistics (R.B.), University of British Columbia, Vancouver, Canada
| | - Jean-Paul Collet
- From the Department of Medicine (L.G., J.-P.C.), University of British Columbia, Vancouver, Canada.,BC Children's Hospital Research Institute (L.G., J.-P.C.), University of British Columbia, Vancouver, Canada.,Advanced Innovation Center for Human Brain Protection, Beijing Tiantan Hospital, Capital Medical University, China (J.-P.C.)
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11
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Pinchefsky EF, Hahn CD, Kamino D, Chau V, Brant R, Moore AM, Tam EWY. Hyperglycemia and Glucose Variability Are Associated with Worse Brain Function and Seizures in Neonatal Encephalopathy: A Prospective Cohort Study. J Pediatr 2019; 209:23-32. [PMID: 30982528 DOI: 10.1016/j.jpeds.2019.02.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 01/17/2019] [Accepted: 02/15/2019] [Indexed: 02/07/2023]
Abstract
OBJECTIVES To investigate how glucose abnormalities correlate with brain function on amplitude-integrated electroencephalography (aEEG) in infants with neonatal encephalopathy. STUDY DESIGN Neonates born at full term with encephalopathy were enrolled within 6 hours of birth in a prospective cohort study at a pediatric academic referral hospital. Continuous interstitial glucose monitors and aEEG were placed soon after birth and continued for 3 days. Episodes of hypoglycemia (≤50 mg/dL; ≤2.8 mmol/L) and hyperglycemia (>144 mg/dL; >8.0 mmol/L) were identified. aEEG was classified in 6-hour epochs for 3 domains (background, sleep-wake cycling, electrographic seizures). Generalized estimating equations assessed the relationship of hypo- or hyperglycemia with aEEG findings, adjusting for clinical markers of hypoxia-ischemia (Apgar scores, umbilical artery pH, and base deficit). RESULTS Forty-five infants (gestational age 39.5 ± 1.4 weeks) were included (24 males). During aEEG monitoring, 16 episodes of hypoglycemia were detected (9 infants, median duration 77.5, maximum 220 minutes) and 18 episodes of hyperglycemia (13 infants, median duration 237.5, maximum 3125 minutes). Epochs of hypoglycemia were not associated with aEEG changes. Compared with epochs of normoglycemia, epochs of hyperglycemia were associated with worse aEEG background scores (B 1.120, 95% CI 0.501-1.738, P < .001), less sleep-wake cycling (B 0.587, 95% CI 0.417-0.757, P < .001) and more electrographic seizures (B 0.433, 95% CI 0.185-0.681, P = .001), after adjusting for hypoxia-ischemia severity. CONCLUSIONS In neonates with encephalopathy, epochs of hyperglycemia were temporally associated with worse global brain function and seizures, even after we adjusted for hypoxia-ischemia severity. Whether hyperglycemia causes neuronal injury or is simply a marker of severe brain injury requires further study.
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Affiliation(s)
- Elana F Pinchefsky
- Division of Neurology, Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada; Program in Neurosciences and Mental Health, SickKids Research Institute, Toronto, Ontario, Canada.
| | - Cecil D Hahn
- Division of Neurology, Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada; Program in Neurosciences and Mental Health, SickKids Research Institute, Toronto, Ontario, Canada
| | - Daphne Kamino
- Division of Neurology, Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada; Program in Neurosciences and Mental Health, SickKids Research Institute, Toronto, Ontario, Canada
| | - Vann Chau
- Division of Neurology, Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada; Program in Neurosciences and Mental Health, SickKids Research Institute, Toronto, Ontario, Canada; BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Rollin Brant
- BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada; Department of Statistics, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Aideen M Moore
- Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada
| | - Emily W Y Tam
- Division of Neurology, Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada; Program in Neurosciences and Mental Health, SickKids Research Institute, Toronto, Ontario, Canada
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12
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Al-Rawahi GN, Al-Najjar A, McDonald R, Deyell RJ, Golding GR, Brant R, Tilley P, Thomas E, Rassekh SR, O'Gorman A, Wong P, Turnham L, Dobson S. Pediatric oncology and stem cell transplant patients with healthcare-associated Clostridium difficile infection were already colonized on admission. Pediatr Blood Cancer 2019; 66:e27604. [PMID: 30666782 DOI: 10.1002/pbc.27604] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 11/22/2018] [Accepted: 12/14/2018] [Indexed: 01/02/2023]
Abstract
UNLABELLED Clostridium difficile is the leading cause of healthcare-associated infections worldwide. The diagnosis of C. difficile infection (CDI) in pediatric oncology patients is complex as diarrhea is common, and there is a high rate of colonization in infants and young children. This study was conducted to assess the accuracy of the surveillance definitions of healthcare-associated CDI (HA-CDI) and to determine the prevalence of toxigenic C. difficile colonization among pediatric oncology and stem cell transplant patients. METHODS A prospective cohort study was conducted over a three-year period in an inpatient pediatric oncology and stem cell transplant setting. Baseline stool samples were collected within three days of admission and were genotypically compared with clinically indicated samples submitted after three days of admission. RESULTS A total of 175 patients were recruited with a total of 536 admissions. The adjusted prevalence of baseline toxigenic C. difficile colonization among admissions was 32.8%. Seventy-eight percent of positive admissions did not have history of CDI. Colonization with a toxigenic strain on admission was predictive of CDI (OR = 28.6; 95% CI, 6.58-124.39; P < 0.001). Nearly all clinical isolates (8/9) shared identical pulsed-field gel electrophoresis patterns with baseline isolates or were closely related (1/9). Only one of the 11 cases that were considered HA-CDI was potentially nosocomially acquired. CONCLUSION The prevalence of colonization with toxigenic C. difficile in our cohort is high. Unfortunately, the current CDI surveillance definitions overestimate the incidence of HA-CDI in pediatric oncology and stem cell transplantation settings.
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Affiliation(s)
- Ghada N Al-Rawahi
- Department of Pathology and Laboratory Medicine, University of British Columbia, British Columbia Children's Hospital, Vancouver, British Columbia, Canada
| | - Abeer Al-Najjar
- Pediatric Infectious Diseases, Faculty of Medicine, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Rachel McDonald
- Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Rebecca J Deyell
- Division of Pediatric Hematology/Oncology/BMT, University of British Columbia, British Columbia Children's Hospital, Vancouver, British Columbia, Canada
| | - George R Golding
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Rollin Brant
- Department of Statistics, University of British Columbia, British Columbia Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Peter Tilley
- Department of Pathology and Laboratory Medicine, University of British Columbia, British Columbia Children's Hospital, Vancouver, British Columbia, Canada
| | - Eva Thomas
- Department of Pathology, Sidra Medicine and Weill Cornell Medical College in Qatar, Doha, Qatar
| | - Shahrad R Rassekh
- Division of Pediatric Hematology/Oncology/BMT, University of British Columbia, British Columbia Children's Hospital, Vancouver, British Columbia, Canada
| | - Aisling O'Gorman
- Division of Pediatric Hematology/Oncology/BMT, University of British Columbia, British Columbia Children's Hospital, Vancouver, British Columbia, Canada
| | - Peggy Wong
- Division of Pediatric Hematology/Oncology/BMT, University of British Columbia, British Columbia Children's Hospital, Vancouver, British Columbia, Canada
| | - Lucy Turnham
- Division of Pediatric Hematology/Oncology/BMT, University of British Columbia, British Columbia Children's Hospital, Vancouver, British Columbia, Canada
| | - Simon Dobson
- Department of Pathology, Sidra Medicine and Weill Cornell Medical College in Qatar, Doha, Qatar
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13
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Sabr Y, Lisonkova S, Skoll A, Brant R, Velez M, Joseph KS. EPIDEMIOLOGIC CHARACTERIZATION OF SEVERE MATERNAL MORBIDITY AND MORTALITY ASSOCIATED WITH ASSISTED REPRODUCTION. Journal of Obstetrics and Gynaecology Canada 2019. [DOI: 10.1016/j.jogc.2019.02.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Muraca G, Lisonkova S, Sabr Y, Skoll A, Brant R, Cundiff G, Joseph K. TEMPORAL TRENDS IN EPISIOTOMY USE AMONG SPONTANEOUS AND OPERATIVE VAGINAL DELIVERIES IN CANADA AND THE ASSOCIATION WITH OBSTETRIC ANAL SPHINCTER INJURY. Journal of Obstetrics and Gynaecology Canada 2019. [DOI: 10.1016/j.jogc.2019.02.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Kamino D, Chau V, Studholme C, Liu M, Xu D, James Barkovich A, Ferriero DM, Miller SP, Brant R, Tam EW. Plasma cholesterol levels and brain development in preterm newborns. Pediatr Res 2019; 85:299-304. [PMID: 30635642 PMCID: PMC6433157 DOI: 10.1038/s41390-018-0260-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 11/30/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND To assess whether postnatal plasma cholesterol levels are associated with microstructural and macrostructural regional brain development in preterm newborns. METHODS Sixty preterm newborns (born 24-32 weeks gestational age) were assessed using MRI studies soon after birth and again at term-equivalent age. Blood samples were obtained within 7 days of each MRI scan to analyze for plasma cholesterol and lathosterol (a marker of endogenous cholesterol synthesis) levels. Outcomes were assessed at 3 years using the Bayley Scales of Infant Development, Third Edition. RESULTS Early plasma lathosterol levels were associated with increased axial and radial diffusivities and increased volume of the subcortical white matter. Early plasma cholesterol levels were associated with increased volume of the cerebellum. Early plasma lathosterol levels were associated with a 2-point decrease in motor scores at 3 years. CONCLUSIONS Higher early endogenous cholesterol synthesis is associated with worse microstructural measures and larger volumes in the subcortical white matter that may signify regional edema and worse motor outcomes. Higher early cholesterol is associated with improved cerebellar volumes. Further work is needed to better understand how the balance of cholesterol supply and endogenous synthesis impacts preterm brain development, especially if these may be modifiable factors to improve outcomes.
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Affiliation(s)
- Daphne Kamino
- Department of Paediatrics, Division of Neurology Hospital for Sick Children, Toronto, Ontario, Canada
| | - Vann Chau
- Department of Paediatrics, Division of Neurology Hospital for Sick Children, Toronto, Ontario, Canada
| | - Colin Studholme
- Department of Pediatrics and Department of Bioengineering and Radiology, University of Washington, Seattle, WA
| | - Mengyuan Liu
- Department of Pediatrics and Department of Bioengineering and Radiology, University of Washington, Seattle, WA
| | - Duan Xu
- Departments of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA
| | - A. James Barkovich
- Departments of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA,Departments of Pediatrics and Neurology, University of California San Francisco, San Francisco, CA
| | - Donna M. Ferriero
- Departments of Pediatrics and Neurology, University of California San Francisco, San Francisco, CA
| | - Steven P. Miller
- Department of Paediatrics, Division of Neurology Hospital for Sick Children, Toronto, Ontario, Canada,Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Rollin Brant
- Department of Statistics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Emily W.Y. Tam
- Department of Paediatrics, Division of Neurology Hospital for Sick Children, Toronto, Ontario, Canada,Corresponding Author: Emily W.Y. Tam, MDCM, MAS, FRCPC, Hospital for Sick Children, Division of Neurology, 555 University Avenue, Toronto, ON M5G 1X8 Canada, Phone: 416-813-6660, Fax:416-813-6334,
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16
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Fairthorne JC, Hanley GE, Brant R, Oberlander TF. Risk factors for hospitalizations associated with depression among women during the years around a birth: a retrospective cohort study. Int J Popul Data Sci 2019; 4:453. [PMID: 34095525 PMCID: PMC8142953 DOI: 10.23889/ijpds.v4i1.453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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] [Indexed: 11/01/2022] Open
Abstract
Introduction Socio-economic status (SES) is an important determinant of health. Low SES is associated with higher rates of prenatal and post-partum depression, and prenatal and post-partum depression are associated with sub-optimal maternal and infant health. Furthermore, increased negative effects of post-partum depression have been reported in children from low SES backgrounds. Objective To assess whether SES was related to the risk of a medical or psychiatric hospitalization associated with depression (HAWD) and the risk of a HAWD by anti-depressant (AD) use during the years around a birth. Methods This retrospective cohort study used linked birth, hospitalization, prescription and tax-file records of the study cohort. We linked registry data of 243,933 women delivering 348,273 live infants in British Columbia (1999-2009). The outcomes of interest were a HAWD and a HAWD with the associated patient AD use. Ranked area-based measures of equivalised, family disposable income were used to create income deciles, our proxy for SES. Decile-1 represented the lowest income areas, and mothers from Decile-6 (middle-income) were the comparator group. Anti-depressant use was defined as having a prescription for a selective serotonin reuptake inhibitor (SSRI) or other AD during the years around a birth, defined as the period beginning 12 months before conception and ending 12 months after the birth. We analysed by pregnancy using mixed effects logistic regression whilst adjusting for maternal age and parity. Results Compared to mothers from middle-income areas (Decile-6), mothers from low income areas (Decile-1, Decile-2) had increased odds of a HAWD [adjusted OR=1.77 (CI: 1.43, 2.19); adjusted OR=1.56 (CI: 1.26, 1.94)]. Mothers from low income areas with depression and no AD use had even higher odds of a HAWD [adjusted OR=1.83 (CI: 1.33, 2.20); adjusted OR=1.71(CI: 1.33, 2.20)]. Conclusions This study provides preliminary evidence to suggest that barriers to treating depression with ADs in mothers from low income areas during the years around a birth might contribute to their increased risk of a HAWD associated with non-pharmacologically treated depression. Further research is needed to understand the reasons for this increased risk. Disclaimer All inferences, opinions, and conclusions drawn in this manuscript are those of the authors and do not reflect the opinions or policies of the Data Stewards of Population Data BC.
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Affiliation(s)
- Jennifer Christine Fairthorne
- British Columbia Children's Hospital Research Institute, 938 West 28th Avenue, Vancouver, BC Canada V5Z 4H4.,Telethon Kids Institute, University of Western Australia
| | - Gillian E Hanley
- British Columbia Children's Hospital Research Institute, 938 West 28th Avenue, Vancouver, BC Canada V5Z 4H4.,Department of Obstetrics and Gynaecology, University of British Columbia, Faculty of Medicine, 1125 Howe Street, Vancouver, BC Canada V6Z 2K8
| | - Rollin Brant
- British Columbia Children's Hospital Research Institute, 938 West 28th Avenue, Vancouver, BC Canada V5Z 4H4.,Department of Statistics, University of British Columbia
| | - Tim F Oberlander
- British Columbia Children's Hospital Research Institute, 938 West 28th Avenue, Vancouver, BC Canada V5Z 4H4
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Sabr Y, Lisonkova S, Skoll A, Brant R, Velez M, Joseph K. 737: Severe maternal morbidity and mortality associated with assisted reproduction: A population-based study. Am J Obstet Gynecol 2019. [DOI: 10.1016/j.ajog.2018.11.760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Gitimoghaddam M, McKellin WH, Miller AR, Weiss JA, Majnemer A, Mâsse LC, Brant R, Symington V, Wishart RL, Collet JP. Gymnastic-Based Movement Therapy for Children With Neurodevelopmental Disabilities: Results From a Pilot Feasibility Study. Front Pediatr 2019; 7:186. [PMID: 31139605 PMCID: PMC6527593 DOI: 10.3389/fped.2019.00186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 04/23/2019] [Indexed: 11/13/2022] Open
Abstract
Background: Developmental and behavioral issues often limit the participation of children with neurodevelopmental disabilities (NDD) in community-based activities with their peers, which decreases opportunities for their social learning and development. Parents of children with NDD seek out programs that address physical and psychosocial development. Several studies already support the positive effects for the child to attend physical activity programs (PAPs). However, these studies are highly prone to biases and Hawthorne effect. In the planning stage of a large prospective study to assess the effectiveness of PAPs we reviewed the records of children who participated in a gymnastic-based program, the Empowering Steps Movement Therapy (ESMT). Besides generating useful data for developing the prospective study we thought these data reflect the rate of changes in context of normal practice in a naturalistic environment; therefore protected from Hawthorne effect and other biases. Design: This is a historical cohort: the files of 67 children with NDD were examined across a 2-year period (Jan 2011 to Jan 2013). As part of standard practice, the ESMT therapists document changes in motor function every 6 months, using the ESMT's proprietary motor scale. Parents also completed a parental questionnaire in June 2011 regarding their perceptions of changes in their child's physical and psychosocial function, as well as family functioning since their child started the program. Results: Linear Mixed Effects Model clearly identified three groups according to changes in motor function: the ones with rapid changes (mostly functional children with autism spectrum disorder: n = 13), the ones with moderate changes (different types of NDD diagnoses: n = 41) and the ones that did not change or even decreased motor skills over the follow-up (children with complex diseases or uncontrolled epilepsy despite treatment: n = 13). Parental questionnaires (n = 39) reported improvement in most of the children's physical and psychosocial abilities; they also indicated improvement in some of the family parameters. There was no association between the changes in children's motor functions and parents' responses to the questionnaire. Conclusion: Despite limitations due to the retrospective nature of the study, the absence of a control group and the absence of validated measurement tools, the observed positive effects of attending movement therapy center on motor performance and psychosocial development confirm in a naturalistic environment what has been shown in context of clinical trials or quasi-experimental studies. These results are not conclusive. They warrant further, rigorous investigation using validated instruments, independent assessors, and control groups.
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Affiliation(s)
- Mojgan Gitimoghaddam
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - William H McKellin
- Department of Anthropology, University of British Columbia, Vancouver, BC, Canada
| | - Anton R Miller
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada.,Sunny Hill Health Centre for Children, Vancouver, BC, Canada
| | | | - Annette Majnemer
- School of Physical and Occupational Therapy, McGill University, Montreal, QC, Canada
| | - Louise C Mâsse
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada.,School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Rollin Brant
- BC Children's Hospital Research Institute, Vancouver, BC, Canada.,Department of Statistics, University of British Columbia, Vancouver, BC, Canada
| | | | - Robert L Wishart
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
| | - Jean-Paul Collet
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
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Sabr Y, Lisonkova S, Skoll A, Brant R, Joseph K. 612: Severe maternal morbidity among women with solid organ transplants: A population-based study. Am J Obstet Gynecol 2019. [DOI: 10.1016/j.ajog.2018.11.634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Román LS, Menon BK, Blasco J, Hernández-Pérez M, Dávalos A, Majoie CBLM, Campbell BCV, Guillemin F, Lingsma H, Anxionnat R, Epstein J, Saver JL, Marquering H, Wong JH, Lopes D, Reimann G, Desal H, Dippel DWJ, Coutts S, du Mesnil de Rochemont R, Yavagal D, Ferre JC, Roos YBWEM, Liebeskind DS, Lenthall R, Molina C, Al Ajlan FS, Reddy V, Dowlatshahi D, Sourour NA, Oppenheim C, Mitha AP, Davis SM, Weimar C, van Oostenbrugge RJ, Cobo E, Kleinig TJ, Donnan GA, van der Lugt A, Demchuk AM, Berkhemer OA, Boers AMM, Ford GA, Muir KW, Brown BS, Jovin T, van Zwam WH, Mitchell PJ, Hill MD, White P, Bracard S, Goyal M, Berkhemer OA, Fransen PSS, Beumer D, van den Berg LA, Lingsma HF, Yoo AJ, Schonewille WJ, Vos JA, Nederkoorn PJ, Wermer MJH, van Walderveen MAA, Staals J, Hofmeijer J, van Oostayen JA, Lycklama à Nijeholt GJ, Boiten J, Brouwer PA, Emmer BJ, de Bruijn SF, van Dijk LC, Kappelle J, Lo RH, van Dijk EJ, de Vries J, de Kort PL, van Rooij WJJ, van den Berg JS, van Hasselt BA, Aerden LA, Dallinga RJ, Visser MC, Bot JC, Vroomen PC, Eshghi O, Schreuder TH, Heijboer RJ, Keizer K, Tielbeek AV, den Hertog HM, Gerrits DG, van den Berg-Vos RM, Karas GB, Steyerberg EW, Flach Z, Marquering HA, Sprengers ME, Jenniskens SF, Beenen LF, Zech M, Kowarik M, Seifert C, Schwaiger B, Puri A, Hou S, Wakhloo A, Moonis M, Henniger N, Goddeau R, van den Berg R, Massari F, Minaeian A, Lozano JD, Ramzan M, Stout C, Patel A, Tunguturi A, Onteddu S, Carandang R, Howk M, Koudstaal PJ, Ribó M, Sanjuan E, Rubiera M, Pagola J, Flores A, Muchada M, Meler P, Huerga E, Gelabert S, Coscojuela P, van Zwam WH, Tomasello A, Rodriguez D, Santamarina E, Maisterra O, Boned S, Seró L, Rovira A, Molina CA, Millán M, Muñoz L, Roos YB, Pérez de la Ossa N, Gomis M, Dorado L, López-Cancio E, Palomeras E, Munuera J, García Bermejo P, Remollo S, Castaño C, García-Sort R, van der Lugt A, Cuadras P, Puyalto P, Hernández-Pérez M, Jiménez M, Martínez-Piñeiro A, Lucente G, Dávalos A, Chamorro A, Urra X, Obach V, van Oostenbrugge RJ, Cervera A, Amaro S, Llull L, Codas J, Balasa M, Navarro J, Ariño H, Aceituno A, Rudilosso S, Renu A, Majoie CB, Macho JM, San Roman L, Blasco J, López A, Macías N, Cardona P, Quesada H, Rubio F, Cano L, Lara B, Dippel DW, de Miquel MA, Aja L, Serena J, Cobo E, Albers GW, Lees KR, Arenillas J, Roberts R, Minhas P, Al-Ajlan F, Brown MM, Salluzzi M, Zimmel L, Patel S, Eesa M, Martí-Fàbregas J, Jankowitz B, Serena J, Salvat-Plana M, López-Cancio E, Bracard S, Liebig T, Ducrocq X, Anxionnat R, Baillot PA, Barbier C, Derelle AL, Lacour JC, Richard S, Samson Y, Sourour N, Baronnet-Chauvet F, Stijnen T, Clarencon F, Crozier S, Deltour S, Di Maria F, Le Bouc R, Leger A, Mutlu G, Rosso C, Szatmary Z, Yger M, Andersson T, Zavanone C, Bakchine S, Pierot L, Caucheteux N, Estrade L, Kadziolka K, Leautaud A, Renkes C, Serre I, Desal H, Mattle H, Guillon B, Boutoleau-Bretonniere C, Daumas-Duport B, De Gaalon S, Derkinderen P, Evain S, Herisson F, Laplaud DA, Lebouvier T, Lintia-Gaultier A, Wahlgren N, Pouclet-Courtemanche H, Rouaud T, Rouaud Jaffrenou V, Schunck A, Sevin-Allouet M, Toulgoat F, Wiertlewski S, Gauvrit JY, Ronziere T, Cahagne V, van der Heijden E, Ferre JC, Pinel JF, Raoult H, Mas JL, Meder JF, Al Najjar-Carpentier AA, Birchenall J, Bodiguel E, Calvet D, Domigo V, Ghannouti N, Godon-Hardy S, Guiraud V, Lamy C, Majhadi L, Morin L, Naggara O, Trystram D, Turc G, Berge J, Sibon I, Fleitour N, Menegon P, Barreau X, Rouanet F, Debruxelles S, Kazadi A, Renou P, Fleury O, Pasco-Papon A, Dubas F, Caroff J, Hooijenga I, Godard Ducceschi S, Hamon MA, Lecluse A, Marc G, Giroud M, Ricolfi F, Bejot Y, Chavent A, Gentil A, Kazemi A, Puppels C, Osseby GV, Voguet C, Mahagne MH, Sedat J, Chau Y, Suissa L, Lachaud S, Houdart E, Stapf C, Buffon Porcher F, Pellikaan W, Chabriat H, Guedin P, Herve D, Jouvent E, Mawet J, Saint-Maurice JP, Schneble HM, Turjman F, Nighoghossian N, Berhoune NN, Geerling A, Bouhour F, Cho TH, Derex L, Felix S, Gervais-Bernard H, Gory B, Manera L, Mechtouff L, Ritzenthaler T, Riva R, Lindl-Velema A, Salaris Silvio F, Tilikete C, Blanc R, Obadia M, Bartolini MB, Gueguen A, Piotin M, Pistocchi S, Redjem H, Drouineau J, van Vemde G, Neau JP, Godeneche G, Lamy M, Marsac E, Velasco S, Clavelou P, Chabert E, Bourgois N, Cornut-Chauvinc C, Ferrier A, de Ridder A, Gabrillargues J, Jean B, Marques AR, Vitello N, Detante O, Barbieux M, Boubagra K, Favre Wiki I, Garambois K, Tahon F, Greebe P, Ashok V, Voguet C, Coskun O, Guedin P, Rodesch G, Lapergue B, Bourdain F, Evrard S, Graveleau P, Decroix JP, de Bont-Stikkelbroeck J, Wang A, Sellal F, Ahle G, Carelli G, Dugay MH, Gaultier C, Lebedinsky AP, Lita L, Musacchio RM, Renglewicz-Destuynder C, de Meris J, Tournade A, Vuillemet F, Montoro FM, Mounayer C, Faugeras F, Gimenez L, Labach C, Lautrette G, Denier C, Saliou G, Janssen K, Chassin O, Dussaule C, Melki E, Ozanne A, Puccinelli F, Sachet M, Sarov M, Bonneville JF, Moulin T, Biondi A, Struijk W, De Bustos Medeiros E, Vuillier F, Courtheoux P, Viader F, Apoil-Brissard M, Bataille M, Bonnet AL, Cogez J, Kazemi A, Touze E, Licher S, Leclerc X, Leys D, Aggour M, Aguettaz P, Bodenant M, Cordonnier C, Deplanque D, Girot M, Henon H, Kalsoum E, Boodt N, Lucas C, Pruvo JP, Zuniga P, Bonafé A, Arquizan C, Costalat V, Machi P, Mourand I, Riquelme C, Bounolleau P, Ros A, Arteaga C, Faivre A, Bintner M, Tournebize P, Charlin C, Darcel F, Gauthier-Lasalarie P, Jeremenko M, Mouton S, Zerlauth JB, Venema E, Lamy C, Hervé D, Hassan H, Gaston A, Barral FG, Garnier P, Beaujeux R, Wolff V, Herbreteau D, Debiais S, Slokkers I, Murray A, Ford G, Muir KW, White P, Brown MM, Clifton A, Freeman J, Ford I, Markus H, Wardlaw J, Ganpat RJ, Lees KR, Molyneux A, Robinson T, Lewis S, Norrie J, Robertson F, Perry R, Dixit A, Cloud G, Clifton A, Mulder M, Madigan J, Roffe C, Nayak S, Lobotesis K, Smith C, Herwadkar A, Kandasamy N, Goddard T, Bamford J, Subramanian G, Saiedie N, Lenthall R, Littleton E, Lamin S, Storey K, Ghatala R, Banaras A, Aeron-Thomas J, Hazel B, Maguire H, Veraque E, Heshmatollah A, Harrison L, Keshvara R, Cunningham J, Schipperen S, Vinken S, van Boxtel T, Koets J, Boers M, Santos E, Borst J, Jansen I, Kappelhof M, Lucas M, Geuskens R, Barros RS, Dobbe R, Csizmadia M, Hill MD, Goyal M, Demchuk AM, Menon BK, Eesa M, Ryckborst KJ, Wright MR, Kamal NR, Andersen L, Randhawa PA, Stewart T, Patil S, Minhas P, Almekhlafi M, Mishra S, Clement F, Sajobi T, Shuaib A, Montanera WJ, Roy D, Silver FL, Jovin TG, Frei DF, Sapkota B, Rempel JL, Thornton J, Williams D, Tampieri D, Poppe AY, Dowlatshahi D, Wong JH, Mitha AP, Subramaniam S, Hull G, Lowerison MW, Sajobi T, Salluzzi M, Wright MR, Maxwell M, Lacusta S, Drupals E, Armitage K, Barber PA, Smith EE, Morrish WF, Coutts SB, Derdeyn C, Demaerschalk B, Yavagal D, Martin R, Brant R, Yu Y, Willinsky RA, Montanera WJ, Weill A, Kenney C, Aram H, Stewart T, Stys PK, Watson TW, Klein G, Pearson D, Couillard P, Trivedi A, Singh D, Klourfeld E, Imoukhuede O, Nikneshan D, Blayney S, Reddy R, Choi P, Horton M, Musuka T, Dubuc V, Field TS, Desai J, Adatia S, Alseraya A, Nambiar V, van Dijk R, Wong JH, Mitha AP, Morrish WF, Eesa M, Newcommon NJ, Shuaib A, Schwindt B, Butcher KS, Jeerakathil T, Buck B, Khan K, Naik SS, Emery DJ, Owen RJ, Kotylak TB, Ashforth RA, Yeo TA, McNally D, Siddiqui M, Saqqur M, Hussain D, Kalashyan H, Manosalva A, Kate M, Gioia L, Hasan S, Mohammad A, Muratoglu M, Williams D, Thornton J, Cullen A, Brennan P, O'Hare A, Looby S, Hyland D, Duff S, McCusker M, Hallinan B, Lee S, McCormack J, Moore A, O'Connor M, Donegan C, Brewer L, Martin A, Murphy S, O'Rourke K, Smyth S, Kelly P, Lynch T, Daly T, O'Brien P, O'Driscoll A, Martin M, Daly T, Collins R, Coughlan T, McCabe D, Murphy S, O'Neill D, Mulroy M, Lynch O, Walsh T, O'Donnell M, Galvin T, Harbison J, McElwaine P, Mulpeter K, McLoughlin C, Reardon M, Harkin E, Dolan E, Watts M, Cunningham N, Fallon C, Gallagher S, Cotter P, Crowe M, Doyle R, Noone I, Lapierre M, Coté VA, Lanthier S, Odier C, Durocher A, Raymond J, Weill A, Daneault N, Deschaintre Y, Jankowitz B, Baxendell L, Massaro L, Jackson-Graves C, Decesare S, Porter P, Armbruster K, Adams A, Billigan J, Oakley J, Ducruet A, Jadhav A, Giurgiutiu DV, Aghaebrahim A, Reddy V, Hammer M, Starr M, Totoraitis V, Wechsler L, Streib S, Rangaraju S, Campbell D, Rocha M, Gulati D, Silver FL, Krings T, Kalman L, Cayley A, Williams J, Stewart T, Wiegner R, Casaubon LK, Jaigobin C, del Campo JM, Elamin E, Schaafsma JD, Willinsky RA, Agid R, Farb R, ter Brugge K, Sapkoda BL, Baxter BW, Barton K, Knox A, Porter A, Sirelkhatim A, Devlin T, Dellinger C, Pitiyanuvath N, Patterson J, Nichols J, Quarfordt S, Calvert J, Hawk H, Fanale C, Frei DF, Bitner A, Novak A, Huddle D, Bellon R, Loy D, Wagner J, Chang I, Lampe E, Spencer B, Pratt R, Bartt R, Shine S, Dooley G, Nguyen T, Whaley M, McCarthy K, Teitelbaum J, Tampieri D, Poon W, Campbell N, Cortes M, Dowlatshahi D, Lum C, Shamloul R, Robert S, Stotts G, Shamy M, Steffenhagen N, Blacquiere D, Hogan M, AlHazzaa M, Basir G, Lesiuk H, Iancu D, Santos M, Choe H, Weisman DC, Jonczak K, Blue-Schaller A, Shah Q, MacKenzie L, Klein B, Kulandaivel K, Kozak O, Gzesh DJ, Harris LJ, Khoury JS, Mandzia J, Pelz D, Crann S, Fleming L, Hesser K, Beauchamp B, Amato-Marzialli B, Boulton M, Lopez-Ojeda P, Sharma M, Lownie S, Chan R, Swartz R, Howard P, Golob D, Gladstone D, Boyle K, Boulos M, Hopyan J, Yang V, Da Costa L, Holmstedt CA, Turk AS, Navarro R, Jauch E, Ozark S, Turner R, Phillips S, Shankar J, Jarrett J, Gubitz G, Maloney W, Vandorpe R, Schmidt M, Heidenreich J, Hunter G, Kelly M, Whelan R, Peeling L, Burns PA, Hunter A, Wiggam I, Kerr E, Watt M, Fulton A, Gordon P, Rennie I, Flynn P, Smyth G, O'Leary S, Gentile N, Linares G, McNelis P, Erkmen K, Katz P, Azizi A, Weaver M, Jungreis C, Faro S, Shah P, Reimer H, Kalugdan V, Saposnik G, Bharatha A, Li Y, Kostyrko P, Santos M, Marotta T, Montanera W, Sarma D, Selchen D, Spears J, Heo JH, Jeong K, Kim DJ, Kim BM, Kim YD, Song D, Lee KJ, Yoo J, Bang OY, Rho S, Lee J, Jeon P, Kim KH, Cha J, Kim SJ, Ryoo S, Lee MJ, Sohn SI, Kim CH, Ryu HG, Hong JH, Chang HW, Lee CY, Rha J, Davis SM, Donnan GA, Campbell BCV, Mitchell PJ, Churilov L, Yan B, Dowling R, Yassi N, Oxley TJ, Wu TY, Silver G, McDonald A, McCoy R, Kleinig TJ, Scroop R, Dewey HM, Simpson M, Brooks M, Coulton B, Krause M, Harrington TJ, Steinfort B, Faulder K, Priglinger M, Day S, Phan T, Chong W, Holt M, Chandra RV, Ma H, Young D, Wong K, Wijeratne T, Tu H, Mackay E, Celestino S, Bladin CF, Loh PS, Gilligan A, Ross Z, Coote S, Frost T, Parsons MW, Miteff F, Levi CR, Ang T, Spratt N, Kaauwai L, Badve M, Rice H, de Villiers L, Barber PA, McGuinness B, Hope A, Moriarty M, Bennett P, Wong A, Coulthard A, Lee A, Jannes J, Field D, Sharma G, Salinas S, Cowley E, Snow B, Kolbe J, Stark R, King J, Macdonnell R, Attia J, D'Este C, Saver JL, Goyal M, Diener HC, Levy EI, Bonafé A, Mendes Pereira V, Jahan R, Albers GW, Cognard C, Cohen DJ, Hacke W, Jansen O, Jovin TG, Mattle HP, Nogueira RG, Siddiqui AH, Yavagal DR, von Kummer R, Smith W, Turjman F, Hamilton S, Chiacchierini R, Amar A, Sanossian N, Loh Y, Devlin T, Baxter B, Hawk H, Sapkota B, Quarfordt S, Sirelkhatim A, Dellinger C, Barton K, Reddy VK, Ducruet A, Jadhav A, Horev A, Giurgiutiu DV, Totoraitis V, Hammer M, Jankowitz B, Wechsler L, Rocha M, Gulati D, Campbell D, Star M, Baxendell L, Oakley J, Siddiqui A, Hopkins LN, Snyder K, Sawyer R, Hall S, Costalat V, Riquelme C, Machi P, Omer E, Arquizan C, Mourand I, Charif M, Ayrignac X, Menjot de Champfleur N, Leboucq N, Gascou G, Moynier M, du Mesnil de Rochemont R, Singer O, Berkefeld J, Foerch C, Lorenz M, Pfeilschifer W, Hattingen E, Wagner M, You SJ, Lescher S, Braun H, Dehkharghani S, Belagaje SR, Anderson A, Lima A, Obideen M, Haussen D, Dharia R, Frankel M, Patel V, Owada K, Saad A, Amerson L, Horn C, Doppelheuer S, Schindler K, Lopes DK, Chen M, Moftakhar R, Anton C, Smreczak M, Carpenter JS, Boo S, Rai A, Roberts T, Tarabishy A, Gutmann L, Brooks C, Brick J, Domico J, Reimann G, Hinrichs K, Becker M, Heiss E, Selle C, Witteler A, Al-Boutros S, Danch MJ, Ranft A, Rohde S, Burg K, Weimar C, Zegarac V, Hartmann C, Schlamann M, Göricke S, Ringlestein A, Wanke I, Mönninghoff C, Dietzold M, Budzik R, Davis T, Eubank G, Hicks WJ, Pema P, Vora N, Mejilla J, Taylor M, Clark W, Rontal A, Fields J, Peterson B, Nesbit G, Lutsep H, Bozorgchami H, Priest R, Ologuntoye O, Barnwell S, Dogan A, Herrick K, Takahasi C, Beadell N, Brown B, Jamieson S, Hussain MS, Russman A, Hui F, Wisco D, Uchino K, Khawaja Z, Katzan I, Toth G, Cheng-Ching E, Bain M, Man S, Farrag A, George P, John S, Shankar L, Drofa A, Dahlgren R, Bauer A, Itreat A, Taqui A, Cerejo R, Richmond A, Ringleb P, Bendszus M, Möhlenbruch M, Reiff T, Amiri H, Purrucker J, Herweh C, Pham M, Menn O, Ludwig I, Acosta I, Villar C, Morgan W, Sombutmai C, Hellinger F, Allen E, Bellew M, Gandhi R, Bonwit E, Aly J, Ecker RD, Seder D, Morris J, Skaletsky M, Belden J, Baker C, Connolly LS, Papanagiotou P, Roth C, Kastrup A, Politi M, Brunner F, Alexandrou M, Merdivan H, Ramsey C, Given II C, Renfrow S, Deshmukh V, Sasadeusz K, Vincent F, Thiesing JT, Putnam J, Bhatt A, Kansara A, Caceves D, Lowenkopf T, Yanase L, Zurasky J, Dancer S, Freeman B, Scheibe-Mirek T, Robison J, Rontal A, Roll J, Clark D, Rodriguez M, Fitzsimmons BFM, Zaidat O, Lynch JR, Lazzaro M, Larson T, Padmore L, Das E, Farrow-Schmidt A, Hassan A, Tekle W, Cate C, Jansen O, Cnyrim C, Wodarg F, Wiese C, Binder A, Riedel C, Rohr A, Lang N, Laufs H, Krieter S, Remonda L, Diepers M, Añon J, Nedeltchev K, Kahles T, Biethahn S, Lindner M, Chang V, Gächter C, Esperon C, Guglielmetti M, Arenillas Lara JF, Martínez Galdámez M, Calleja Sanz AI, Cortijo Garcia E, Garcia Bermejo P, Perez S, Mulero Carrillo P, Crespo Vallejo E, Ruiz Piñero M, Lopez Mesonero L, Reyes Muñoz FJ, Brekenfeld C, Buhk JH, Krützelmann A, Thomalla G, Cheng B, Beck C, Hoppe J, Goebell E, Holst B, Grzyska U, Wortmann G, Starkman S, Duckwiler G, Jahan R, Rao N, Sheth S, Ng K, Noorian A, Szeder V, Nour M, McManus M, Huang J, Tarpley J, Tateshima S, Gonzalez N, Ali L, Liebeskind D, Hinman J, Calderon-Arnulphi M, Liang C, Guzy J, Koch S, DeSousa K, Gordon-Perue G, Haussen D, Elhammady M, Peterson E, Pandey V, Dharmadhikari S, Khandelwal P, Malik A, Pafford R, Gonzalez P, Ramdas K, Andersen G, Damgaard D, Von Weitzel-Mudersbach P, Simonsen C, Ruiz de Morales Ayudarte N, Poulsen M, Sørensen L, Karabegovich S, Hjørringgaard M, Hjort N, Harbo T, Sørensen K, Deshaies E, Padalino D, Swarnkar A, Latorre JG, Elnour E, El-Zammar Z, Villwock M, Farid H, Balgude A, Cross L, Hansen K, Holtmannspötter M, Kondziella D, Hoejgaard J, Taudorf S, Soendergaard H, Wagner A, Cronquist M, Stavngaard T, Cortsen M, Krarup LH, Hyldal T, Haring HP, Guggenberger S, Hamberger M, Trenkler J, Sonnberger M, Nussbaumer K, Dominger C, Bach E, Jagadeesan BD, Taylor R, Kim J, Shea K, Tummala R, Zacharatos H, Sandhu D, Ezzeddine M, Grande A, Hildebrandt D, Miller K, Scherber J, Hendrickson A, Jumaa M, Zaidi S, Hendrickson T, Snyder V, Killer-Oberpfalzer M, Mutzenbach J, Weymayr F, Broussalis E, Stadler K, Jedlitschka A, Malek A, Mueller-Kronast N, Beck P, Martin C, Summers D, Day J, Bettinger I, Holloway W, Olds K, Arkin S, Akhtar N, Boutwell C, Crandall S, Schwartzman M, Weinstein C, Brion B, Prothmann S, Kleine J, Kreiser K, Boeckh-Behrens T, Poppert H, Wunderlich S, Koch ML, Biberacher V, Huberle A, Gora-Stahlberg G, Knier B, Meindl T, Utpadel-Fischler D. Imaging features and safety and efficacy of endovascular stroke treatment: a meta-analysis of individual patient-level data. Lancet Neurol 2018; 17:895-904. [DOI: 10.1016/s1474-4422(18)30242-4] [Citation(s) in RCA: 213] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 11/29/2022]
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Barr RG, Barr M, Rajabali F, Humphreys C, Pike I, Brant R, Hlady J, Colbourne M, Fujiwara T, Singhal A. Eight-year outcome of implementation of abusive head trauma prevention. Child Abuse Negl 2018; 84:106-114. [PMID: 30077049 DOI: 10.1016/j.chiabu.2018.07.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 06/26/2018] [Accepted: 07/02/2018] [Indexed: 06/08/2023]
Abstract
Low incidence rates and economic recession have hampered interpretation of educational prevention efforts to reduce abusive head trauma (AHT). Our objective was to determine whether the British Columbia experience implementing a province-wide prevention program reduced AHT hospitalization rates. A 3-dose primary, universal education program (the Period of PURPLE Crying) was implemented through maternal and public health units and assessed by retrospective-prospective surveillance. With parents of all newborn infants born between January 2009 and December 2016 (n = 354,477), nurses discussed crying and shaking while delivering a booklet and DVD during maternity admission (dose 1). Public health nurses reinforced Talking Points by telephone and/or home visits post-discharge (dose 2) and community education was instituted annually (dose 3). During admission, program delivery occurred for 90% of mothers. Fathers were present 74.4% of the time. By 2-4 months, 70.9% of mothers and 50.5% of fathers watched the DVD and/or read the booklet. AHT admissions decreased for <12-month-olds from 10.6 (95% CI: 8.3-13.5) to 7.1 (95% CI: 4.8-10.5) or, for <24-month-olds, from 6.7 (95% CI: 5.4-8.3) to 4.4 (95% CI: 3.1-6.2) cases per 100,000 person-years. Relative risk of admission was 0.67 (95% CI: 0.42-1.07, P = 0.090) and 0.65 (95% CI: 0.43-0.99, P = 0.048) respectively. We conclude that the intervention was associated with a 35% reduction in infant AHT admissions that was significant for <24-month-olds. The results are encouraging that, despite a low initial incidence and economic recession, reductions in AHT may be achievable with a system-wide implementation of a comprehensive parental education prevention program.
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Affiliation(s)
- Ronald G Barr
- Department of Pediatrics, University of British Columbia; Canadian Institute for Advanced Research; British Columbia Children's Hospital Research Institute, Canada.
| | - Marilyn Barr
- National Center on Shaken Baby Syndrome, United States
| | - Fahra Rajabali
- British Columbia Children's Hospital Research Institute, Canada
| | | | - Ian Pike
- Department of Pediatrics, University of British Columbia; British Columbia Children's Hospital Research Institute, Canada
| | - Rollin Brant
- British Columbia Children's Hospital Research Institute; Department of Statistics, University of British Columbia, Canada
| | - Jean Hlady
- Department of Pediatrics, University of British Columbia, Canada
| | | | - Takeo Fujiwara
- Global Health Promotion, Tokyo Medical and Dental University, Japan
| | - Ash Singhal
- Department of Neurosurgery, University of British Columbia, Canada
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22
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Muraca GM, Skoll A, Lisonkova S, Sabr Y, Brant R, Cundiff GW, Joseph KS. Authors/ reply re: Perinatal and maternal morbidity and mortality among term singletons following mid cavity operative vaginal delivery versus caesarean delivery. BJOG 2018; 125:1492. [PMID: 30069997 DOI: 10.1111/1471-0528.15391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Giulia M Muraca
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Amanda Skoll
- Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Sarka Lisonkova
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Yasser Sabr
- Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics and Gynaecology, King Saud University, King Khalid University Hospital, Riyadh, Saudi Arabia
| | - Rollin Brant
- BC Children's Hospital Research Institute, Vancouver, BC, Canada.,Department of Statistics, University of British Columbia, Vancouver, BC, Canada
| | - Geoffrey W Cundiff
- Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - K S Joseph
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
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23
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Muraca GM, Lisonkova S, Skoll A, Brant R, Cundiff GW, Sabr Y, Joseph KS. Ecological association between operative vaginal delivery and obstetric and birth trauma. CMAJ 2018; 190:E734-E741. [PMID: 29914910 PMCID: PMC6008188 DOI: 10.1503/cmaj.171076] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/07/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Increased use of operative vaginal delivery (use of forceps, vacuum or other device) has been recommended to address high rates of cesarean delivery. We sought to determine the association between rates of operative vaginal delivery and obstetric trauma and severe birth trauma. METHODS We carried out an ecological analysis of term, singleton deliveries in 4 Canadian provinces (2004-2014) using data from the Canadian Institute for Health Information. The primary exposure was mode of delivery. The primary outcomes were obstetric trauma and severe birth trauma. RESULTS Data on 1 938 913 deliveries were analyzed. The rate of obstetric trauma was 7.2% in nulliparous women, and 2.2% and 2.7% among parous women without and with a previous cesarean delivery, respectively, and rates of severe birth trauma were 2.1, 1.7 and 0.7 per 1000, respectively. Each 1% absolute increase in rates of operative vaginal delivery was associated with a higher frequency of obstetric trauma among nulliparous women (adjusted rate ratio [ARR] 1.06, 95% confidence interval [CI] 1.05-1.06), parous women without a previous cesarean delivery (ARR 1.10, 95% CI 1.08-1.13) and parous women with a previous cesarean delivery (ARR 1.11, 95% CI 1.07-1.16). Operative vaginal delivery was associated with more frequent severe birth trauma, but only in nulliparous women (ARR 1.05, 95% CI 1.03-1.07). In nulliparous women, sequential vacuum and forceps instrumentation was associated with the largest increase in obstetric trauma (ARR 1.44, 95% CI 1.35-1.55) and birth trauma (ARR 1.53, 95% CI 1.03-2.27). INTERPRETATION Increases in population rates of operative vaginal delivery are associated with higher population rates of obstetric trauma, and in nulliparous women with severe birth trauma.
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Affiliation(s)
- Giulia M Muraca
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Lisonkova, Skoll, Cundiff, Sabr, Joseph), University of British Columbia; BC Children's and Women's Hospital and Health Centre (Muraca, Lisonkova, Skoll, Brant, Cundiff, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, King Khalid University Hospital, Riyadh, Saudi Arabia
| | - Sarka Lisonkova
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Lisonkova, Skoll, Cundiff, Sabr, Joseph), University of British Columbia; BC Children's and Women's Hospital and Health Centre (Muraca, Lisonkova, Skoll, Brant, Cundiff, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, King Khalid University Hospital, Riyadh, Saudi Arabia
| | - Amanda Skoll
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Lisonkova, Skoll, Cundiff, Sabr, Joseph), University of British Columbia; BC Children's and Women's Hospital and Health Centre (Muraca, Lisonkova, Skoll, Brant, Cundiff, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, King Khalid University Hospital, Riyadh, Saudi Arabia
| | - Rollin Brant
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Lisonkova, Skoll, Cundiff, Sabr, Joseph), University of British Columbia; BC Children's and Women's Hospital and Health Centre (Muraca, Lisonkova, Skoll, Brant, Cundiff, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, King Khalid University Hospital, Riyadh, Saudi Arabia
| | - Geoffrey W Cundiff
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Lisonkova, Skoll, Cundiff, Sabr, Joseph), University of British Columbia; BC Children's and Women's Hospital and Health Centre (Muraca, Lisonkova, Skoll, Brant, Cundiff, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, King Khalid University Hospital, Riyadh, Saudi Arabia
| | - Yasser Sabr
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Lisonkova, Skoll, Cundiff, Sabr, Joseph), University of British Columbia; BC Children's and Women's Hospital and Health Centre (Muraca, Lisonkova, Skoll, Brant, Cundiff, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, King Khalid University Hospital, Riyadh, Saudi Arabia
| | - K S Joseph
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Lisonkova, Skoll, Cundiff, Sabr, Joseph), University of British Columbia; BC Children's and Women's Hospital and Health Centre (Muraca, Lisonkova, Skoll, Brant, Cundiff, Joseph); Department of Statistics (Brant), University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, King Khalid University Hospital, Riyadh, Saudi Arabia
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24
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Guan L, Collet JP, Mazowita G, Claydon V, Brant R. Abstract WP197: Autonomic Nervous System Parameters to Predict the Occurrence of Ischemic Events After Transient Ischemic Attack or Minor Stroke. Stroke 2018. [DOI: 10.1161/str.49.suppl_1.wp197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Stress response is tightly regulated by the autonomic nervous system (ANS) which can be measured by heart rate variability (HRV). Traditional risk factors and acute triggers for ischemic stroke and transient ischemic attack (TIA) are considered as chronic and acute stressors, respectively. These risk factors all contribute to the recurrent ischemic events and are related to ANS dysfunction. The moderate predictive value of ABCD2 score may be due to assessing a limited number of stressors.
Aims, Objectives and Hypotheses:
We proposed to 1) assess whether HRV parameters, as markers of ANS function and stress, can predict secondary ischemic events after TIA or minor stroke, and 2) compare the HRV-based predictive tools with ABCD2 score. We expected that using HRV indicators can enhance the prediction of ischemic events.
Methods:
This is a prospective observational study. Patients developed TIA or minor stroke within 48 hours were eligible. The main study variables included: ABCD2 score, HRV assessment from 24-hour Holter recording, and psychological stress. HRV measurement included calculations of both absolute values and changes of HRV frequency-domain parameters: high frequency (HF), normalized HF, HF +low frequency, and total power. Patients were followed for 90 days to assess the development of outcome events. Logistic regression was employed for data analyses. Area under the curve (AUC) and diagnostic tests were used to assess models’ predictive power.
Results:
Final analyses include data collected from 201 patients. The most useful HRV predictors were Daytime HF changes (AUC=0.70) and Morning HF value (AUC=0.61). AUCs for the Best Stress Model and the Most Practical Model were 0.82 and 0.76, respectively, which were significantly higher than AUC of ABCD2 score (AUC=0.63), p <0.05. The optimal cut-off points for Daytime HF changes and Morning HF might be increase of 12.5% and 50 ms
2
, respectively. The exploratory models that involved both values and changes of HF had AUCs ≥0.82.
Conclusions:
Assessing the effects of stress on ANS may be an innovative way to stratify the risk of TIA or minor stroke. Models using HRV parameters, especially HF, provide superior predictive values to ABCD2 score. Future research is needed to validate these results.
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Affiliation(s)
- Ling Guan
- The Univ of British Columbia, Vancouver, Canada
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Campbell BCV, van Zwam WH, Goyal M, Menon BK, Dippel DWJ, Demchuk AM, Bracard S, White P, Dávalos A, Majoie CBLM, van der Lugt A, Ford GA, de la Ossa NP, Kelly M, Bourcier R, Donnan GA, Roos YBWEM, Bang OY, Nogueira RG, Devlin TG, van den Berg LA, Clarençon F, Burns P, Carpenter J, Berkhemer OA, Yavagal DR, Pereira VM, Ducrocq X, Dixit A, Quesada H, Epstein J, Davis SM, Jansen O, Rubiera M, Urra X, Micard E, Lingsma HF, Naggara O, Brown S, Guillemin F, Muir KW, van Oostenbrugge RJ, Saver JL, Jovin TG, Hill MD, Mitchell PJ, Berkhemer OA, Fransen PSS, Beumer D, van den Berg LA, Lingsma HF, Yoo AJ, Schonewille WJ, Vos JA, Nederkoorn PJ, Wermer MJH, van Walderveen MAA, Staals J, Hofmeijer J, van Oostayen JA, Lycklama à Nijeholt GJ, Boiten J, Brouwer PA, Emmer BJ, de Bruijn SF, van Dijk LC, Kappelle J, Lo RH, van Dijk EJ, de Vries J, de Kort PL, van Rooij WJJ, van den Berg JS, van Hasselt BA, Aerden LA, Dallinga RJ, Visser MC, Bot JC, Vroomen PC, Eshghi O, Schreuder TH, Heijboer RJ, Keizer K, Tielbeek AV, den Hertog HM, Gerrits DG, van den Berg-Vos RM, Karas GB, Steyerberg EW, Flach Z, Marquering HA, Sprengers ME, Jenniskens SF, Beenen LF, van den Berg R, Koudstaal PJ, van Zwam WH, Roos YB, van der Lugt A, van Oostenbrugge RJ, Wakhloo A, Moonis M, Henninger N, Goddeau R, Massari F, Minaeian A, Lozano JD, Ramzan M, Stout C, Patel A, Majoie CB, Tunguturi A, Onteddu S, Carandang R, Howk M, Ribó M, Sanjuan E, Rubiera M, Pagola J, Flores A, Muchada M, Dippel DW, Meler P, Huerga E, Gelabert S, Coscojuela P, Tomasello A, Rodriguez D, Santamarina E, Maisterra O, Boned S, Seró L, Brown MM, Rovira A, Molina CA, Millán M, Muñoz L, Pérez de la Ossa N, Gomis M, Dorado L, López-Cancio E, Palomeras E, Munuera J, Liebig T, García Bermejo P, Remollo S, Castaño C, García-Sort R, Cuadras P, Puyalto P, Hernández-Pérez M, Jiménez M, Martínez-Piñeiro A, Lucente G, Stijnen T, Dávalos A, Chamorro A, Urra X, Obach V, Cervera A, Amaro S, Llull L, Codas J, Balasa M, Navarro J, Andersson T, Ariño H, Aceituno A, Rudilosso S, Renu A, Macho JM, San Roman L, Blasco J, López A, Macías N, Cardona P, Mattle H, Quesada H, Rubio F, Cano L, Lara B, de Miquel MA, Aja L, Serena J, Cobo E, Albers GW, Lees KR, Wahlgren N, Arenillas J, Roberts R, Minhas P, Al-Ajlan F, Salluzzi M, Zimmel L, Patel S, Eesa M, Martí-Fàbregas J, Jankowitz B, van der Heijden E, Serena J, Salvat-Plana M, López-Cancio E, Bracard S, Ducrocq X, Anxionnat R, Baillot PA, Barbier C, Derelle AL, Lacour JC, Ghannouti N, Richard S, Samson Y, Sourour N, Baronnet-Chauvet F, Clarencon F, Crozier S, Deltour S, Di Maria F, Le Bouc R, Leger A, Fleitour N, Mutlu G, Rosso C, Szatmary Z, Yger M, Zavanone C, Bakchine S, Pierot L, Caucheteux N, Estrade L, Kadziolka K, Hooijenga I, Leautaud A, Renkes C, Serre I, Desal H, Guillon B, Boutoleau-Bretonniere C, Daumas-Duport B, De Gaalon S, Derkinderen P, Evain S, Puppels C, Herisson F, Laplaud DA, Lebouvier T, Lintia-Gaultier A, Pouclet-Courtemanche H, Rouaud T, Rouaud Jaffrenou V, Schunck A, Sevin-Allouet M, Toulgoat F, Pellikaan W, Wiertlewski S, Gauvrit JY, Ronziere T, Cahagne V, Ferre JC, Pinel JF, Raoult H, Mas JL, Meder JF, Al Najjar-Carpentier AA, Geerling A, Birchenall J, Bodiguel E, Calvet D, Domigo V, Godon-Hardy S, Guiraud V, Lamy C, Majhadi L, Morin L, Naggara O, Lindl-Velema A, Trystram D, Turc G, Berge J, Sibon I, Menegon P, Barreau X, Rouanet F, Debruxelles S, Kazadi A, Renou P, van Vemde G, Fleury O, Pasco-Papon A, Dubas F, Caroff J, Godard Ducceschi S, Hamon MA, Lecluse A, Marc G, Giroud M, Ricolfi F, de Ridder A, Bejot Y, Chavent A, Gentil A, Kazemi A, Osseby GV, Voguet C, Mahagne MH, Sedat J, Chau Y, Suissa L, Greebe P, Lachaud S, Houdart E, Stapf C, Buffon Porcher F, Chabriat H, Guedin P, Herve D, Jouvent E, Mawet J, Saint-Maurice JP, de Bont-Stikkelbroeck J, Schneble HM, Turjman F, Nighoghossian N, Berhoune NN, Bouhour F, Cho TH, Derex L, Felix S, Gervais-Bernard H, Gory B, de Meris J, Manera L, Mechtouff L, Ritzenthaler T, Riva R, Salaris Silvio F, Tilikete C, Blanc R, Obadia M, Bartolini MB, Gueguen A, Janssen K, Piotin M, Pistocchi S, Redjem H, Drouineau J, Neau JP, Godeneche G, Lamy M, Marsac E, Velasco S, Clavelou P, Struijk W, Chabert E, Bourgois N, Cornut-Chauvinc C, Ferrier A, Gabrillargues J, Jean B, Marques AR, Vitello N, Detante O, Barbieux M, Licher S, Boubagra K, Favre Wiki I, Garambois K, Tahon F, Ashok V, Voguet C, Coskun O, Guedin P, Rodesch G, Lapergue B, Boodt N, Bourdain F, Evrard S, Graveleau P, Decroix JP, Wang A, Sellal F, Ahle G, Carelli G, Dugay MH, Gaultier C, Ros A, Lebedinsky AP, Lita L, Musacchio RM, Renglewicz-Destuynder C, Tournade A, Vuillemet F, Montoro FM, Mounayer C, Faugeras F, Gimenez L, Venema E, Labach C, Lautrette G, Denier C, Saliou G, Chassin O, Dussaule C, Melki E, Ozanne A, Puccinelli F, Sachet M, Slokkers I, Sarov M, Bonneville JF, Moulin T, Biondi A, De Bustos Medeiros E, Vuillier F, Courtheoux P, Viader F, Apoil-Brissard M, Bataille M, Ganpat RJ, Bonnet AL, Cogez J, Kazemi A, Touze E, Leclerc X, Leys D, Aggour M, Aguettaz P, Bodenant M, Cordonnier C, Mulder M, Deplanque D, Girot M, Henon H, Kalsoum E, Lucas C, Pruvo JP, Zuniga P, Bonafé A, Arquizan C, Costalat V, Saiedie N, Machi P, Mourand I, Riquelme C, Bounolleau P, Arteaga C, Faivre A, Bintner M, Tournebize P, Charlin C, Darcel F, Heshmatollah A, Gauthier-Lasalarie P, Jeremenko M, Mouton S, Zerlauth JB, Lamy C, Hervé D, Hassan H, Gaston A, Barral FG, Garnier P, Schipperen S, Beaujeux R, Wolff V, Herbreteau D, Debiais S, Murray A, Ford G, Muir KW, White P, Brown MM, Clifton A, Vinken S, Freeman J, Ford I, Markus H, Wardlaw J, Lees KR, Molyneux A, Robinson T, Lewis S, Norrie J, Robertson F, van Boxtel T, Perry R, Dixit A, Cloud G, Clifton A, Madigan J, Roffe C, Nayak S, Lobotesis K, Smith C, Herwadkar A, Koets J, Kandasamy N, Goddard T, Bamford J, Subramanian G, Lenthall R, Littleton E, Lamin S, Storey K, Ghatala R, Banaras A, Boers M, Aeron-Thomas J, Hazel B, Maguire H, Veraque E, Harrison L, Keshvara R, Cunningham J, Santos E, Borst J, Jansen I, Kappelhof M, Lucas M, Geuskens R, Barros RS, Dobbe R, Csizmadia M, Hill MD, Goyal M, Demchuk AM, Menon BK, Eesa M, Ryckborst KJ, Wright MR, Kamal NR, Andersen L, Randhawa PA, Stewart T, Patil S, Minhas P, Almekhlafi M, Mishra S, Clement F, Sajobi T, Shuaib A, Montanera WJ, Roy D, Silver FL, Jovin TG, Frei DF, Sapkota B, Rempel JL, Thornton J, Williams D, Tampieri D, Poppe AY, Dowlatshahi D, Wong JH, Mitha AP, Subramaniam S, Hull G, Lowerison MW, Sajobi T, Salluzzi M, Wright MR, Maxwell M, Lacusta S, Drupals E, Armitage K, Barber PA, Smith EE, Morrish WF, Coutts SB, Derdeyn C, Demaerschalk B, Yavagal D, Martin R, Brant R, Yu Y, Willinsky RA, Montanera WJ, Weill A, Kenney C, Aram H, Stewart T, Stys PK, Watson TW, Klein G, Pearson D, Couillard P, Trivedi A, Singh D, Klourfeld E, Imoukhuede O, Nikneshan D, Blayney S, Reddy R, Choi P, Horton M, Musuka T, Dubuc V, Field TS, Desai J, Adatia S, Alseraya A, Nambiar V, van Dijk R, Wong JH, Mitha AP, Morrish WF, Eesa M, Newcommon NJ, Shuaib A, Schwindt B, Butcher KS, Jeerakathil T, Buck B, Khan K, Naik SS, Emery DJ, Owen RJ, Kotylak TB, Ashforth RA, Yeo TA, McNally D, Siddiqui M, Saqqur M, Hussain D, Kalashyan H, Manosalva A, Kate M, Gioia L, Hasan S, Mohammad A, Muratoglu M, Williams D, Thornton J, Cullen A, Brennan P, O'Hare A, Looby S, Hyland D, Duff S, McCusker M, Hallinan B, Lee S, McCormack J, Moore A, O'Connor M, Donegan C, Brewer L, Martin A, Murphy S, O'Rourke K, Smyth S, Kelly P, Lynch T, Daly T, O'Brien P, O'Driscoll A, Martin M, Daly T, Collins R, Coughlan T, McCabe D, Murphy S, O'Neill D, Mulroy M, Lynch O, Walsh T, O'Donnell M, Galvin T, Harbison J, McElwaine P, Mulpeter K, McLoughlin C, Reardon M, Harkin E, Dolan E, Watts M, Cunningham N, Fallon C, Gallagher S, Cotter P, Crowe M, Doyle R, Noone I, Lapierre M, Coté VA, Lanthier S, Odier C, Durocher A, Raymond J, Weill A, Daneault N, Deschaintre Y, Jankowitz B, Baxendell L, Massaro L, Jackson-Graves C, Decesare S, Porter P, Armbruster K, Adams A, Billigan J, Oakley J, Ducruet A, Jadhav A, Giurgiutiu DV, Aghaebrahim A, Reddy V, Hammer M, Starr M, Totoraitis V, Wechsler L, Streib S, Rangaraju S, Campbell D, Rocha M, Gulati D, Silver FL, Krings T, Kalman L, Cayley A, Williams J, Stewart T, Wiegner R, Casaubon LK, Jaigobin C, del Campo JM, Elamin E, Schaafsma JD, Willinsky RA, Agid R, Farb R, ter Brugge K, Sapkoda BL, Baxter BW, Barton K, Knox A, Porter A, Sirelkhatim A, Devlin T, Dellinger C, Pitiyanuvath N, Patterson J, Nichols J, Quarfordt S, Calvert J, Hawk H, Fanale C, Frei DF, Bitner A, Novak A, Huddle D, Bellon R, Loy D, Wagner J, Chang I, Lampe E, Spencer B, Pratt R, Bartt R, Shine S, Dooley G, Nguyen T, Whaley M, McCarthy K, Teitelbaum J, Tampieri D, Poon W, Campbell N, Cortes M, Dowlatshahi D, Lum C, Shamloul R, Robert S, Stotts G, Shamy M, Steffenhagen N, Blacquiere D, Hogan M, AlHazzaa M, Basir G, Lesiuk H, Iancu D, Santos M, Choe H, Weisman DC, Jonczak K, Blue-Schaller A, Shah Q, MacKenzie L, Klein B, Kulandaivel K, Kozak O, Gzesh DJ, Harris LJ, Khoury JS, Mandzia J, Pelz D, Crann S, Fleming L, Hesser K, Beauchamp B, Amato-Marzialli B, Boulton M, Lopez- Ojeda P, Sharma M, Lownie S, Chan R, Swartz R, Howard P, Golob D, Gladstone D, Boyle K, Boulos M, Hopyan J, Yang V, Da Costa L, Holmstedt CA, Turk AS, Navarro R, Jauch E, Ozark S, Turner R, Phillips S, Shankar J, Jarrett J, Gubitz G, Maloney W, Vandorpe R, Schmidt M, Heidenreich J, Hunter G, Kelly M, Whelan R, Peeling L, Burns PA, Hunter A, Wiggam I, Kerr E, Watt M, Fulton A, Gordon P, Rennie I, Flynn P, Smyth G, O'Leary S, Gentile N, Linares G, McNelis P, Erkmen K, Katz P, Azizi A, Weaver M, Jungreis C, Faro S, Shah P, Reimer H, Kalugdan V, Saposnik G, Bharatha A, Li Y, Kostyrko P, Santos M, Marotta T, Montanera W, Sarma D, Selchen D, Spears J, Heo JH, Jeong K, Kim DJ, Kim BM, Kim YD, Song D, Lee KJ, Yoo J, Bang OY, Rho S, Lee J, Jeon P, Kim KH, Cha J, Kim SJ, Ryoo S, Lee MJ, Sohn SI, Kim CH, Ryu HG, Hong JH, Chang HW, Lee CY, Rha J, Davis SM, Donnan GA, Campbell BCV, Mitchell PJ, Churilov L, Yan B, Dowling R, Yassi N, Oxley TJ, Wu TY, Silver G, McDonald A, McCoy R, Kleinig TJ, Scroop R, Dewey HM, Simpson M, Brooks M, Coulton B, Krause M, Harrington TJ, Steinfort B, Faulder K, Priglinger M, Day S, Phan T, Chong W, Holt M, Chandra RV, Ma H, Young D, Wong K, Wijeratne T, Tu H, Mackay E, Celestino S, Bladin CF, Loh PS, Gilligan A, Ross Z, Coote S, Frost T, Parsons MW, Miteff F, Levi CR, Ang T, Spratt N, Kaauwai L, Badve M, Rice H, de Villiers L, Barber PA, McGuinness B, Hope A, Moriarty M, Bennett P, Wong A, Coulthard A, Lee A, Jannes J, Field D, Sharma G, Salinas S, Cowley E, Snow B, Kolbe J, Stark R, King J, Macdonnell R, Attia J, D'Este C, Saver JL, Goyal M, Diener HC, Levy EI, Bonafé A, Mendes Pereira V, Jahan R, Albers GW, Cognard C, Cohen DJ, Hacke W, Jansen O, Jovin TG, Mattle HP, Nogueira RG, Siddiqui AH, Yavagal DR, von Kummer R, Smith W, Turjman F, Hamilton S, Chiacchierini R, Amar A, Sanossian N, Loh Y, Devlin T, Baxter B, Hawk H, Sapkota B, Quarfordt S, Sirelkhatim A, Dellinger C, Barton K, Reddy VK, Ducruet A, Jadhav A, Horev A, Giurgiutiu DV, Totoraitis V, Hammer M, Jankowitz B, Wechsler L, Rocha M, Gulati D, Campbell D, Star M, Baxendell L, Oakley J, Siddiqui A, Hopkins LN, Snyder K, Sawyer R, Hall S, Costalat V, Riquelme C, Machi P, Omer E, Arquizan C, Mourand I, Charif M, Ayrignac X, Menjot de Champfleur N, Leboucq N, Gascou G, Moynier M, du Mesnil de Rochemont R, Singer O, Berkefeld J, Foerch C, Lorenz M, Pfeilschifer W, Hattingen E, Wagner M, You SJ, Lescher S, Braun H, Dehkharghani S, Belagaje SR, Anderson A, Lima A, Obideen M, Haussen D, Dharia R, Frankel M, Patel V, Owada K, Saad A, Amerson L, Horn C, Doppelheuer S, Schindler K, Lopes DK, Chen M, Moftakhar R, Anton C, Smreczak M, Carpenter JS, Boo S, Rai A, Roberts T, Tarabishy A, Gutmann L, Brooks C, Brick J, Domico J, Reimann G, Hinrichs K, Becker M, Heiss E, Selle C, Witteler A, Al-Boutros S, Danch MJ, Ranft A, Rohde S, Burg K, Weimar C, Zegarac V, Hartmann C, Schlamann M, Göricke S, Ringlestein A, Wanke I, Mönninghoff C, Dietzold M, Budzik R, Davis T, Eubank G, Hicks WJ, Pema P, Vora N, Mejilla J, Taylor M, Clark W, Rontal A, Fields J, Peterson B, Nesbit G, Lutsep H, Bozorgchami H, Priest R, Ologuntoye O, Barnwell S, Dogan A, Herrick K, Takahasi C, Beadell N, Brown B, Jamieson S, Hussain MS, Russman A, Hui F, Wisco D, Uchino K, Khawaja Z, Katzan I, Toth G, Cheng-Ching E, Bain M, Man S, Farrag A, George P, John S, Shankar L, Drofa A, Dahlgren R, Bauer A, Itreat A, Taqui A, Cerejo R, Richmond A, Ringleb P, Bendszus M, Möhlenbruch M, Reiff T, Amiri H, Purrucker J, Herweh C, Pham M, Menn O, Ludwig I, Acosta I, Villar C, Morgan W, Sombutmai C, Hellinger F, Allen E, Bellew M, Gandhi R, Bonwit E, Aly J, Ecker RD, Seder D, Morris J, Skaletsky M, Belden J, Baker C, Connolly LS, Papanagiotou P, Roth C, Kastrup A, Politi M, Brunner F, Alexandrou M, Merdivan H, Ramsey C, Given II C, Renfrow S, Deshmukh V, Sasadeusz K, Vincent F, Thiesing JT, Putnam J, Bhatt A, Kansara A, Caceves D, Lowenkopf T, Yanase L, Zurasky J, Dancer S, Freeman B, Scheibe-Mirek T, Robison J, Rontal A, Roll J, Clark D, Rodriguez M, Fitzsimmons BFM, Zaidat O, Lynch JR, Lazzaro M, Larson T, Padmore L, Das E, Farrow-Schmidt A, Hassan A, Tekle W, Cate C, Jansen O, Cnyrim C, Wodarg F, Wiese C, Binder A, Riedel C, Rohr A, Lang N, Laufs H, Krieter S, Remonda L, Diepers M, Añon J, Nedeltchev K, Kahles T, Biethahn S, Lindner M, Chang V, Gächter C, Esperon C, Guglielmetti M, Arenillas Lara JF, Martínez Galdámez M, Calleja Sanz AI, Cortijo Garcia E, Garcia Bermejo P, Perez S, Mulero Carrillo P, Crespo Vallejo E, Ruiz Piñero M, Lopez Mesonero L, Reyes Muñoz FJ, Brekenfeld C, Buhk JH, Krützelmann A, Thomalla G, Cheng B, Beck C, Hoppe J, Goebell E, Holst B, Grzyska U, Wortmann G, Starkman S, Duckwiler G, Jahan R, Rao N, Sheth S, Ng K, Noorian A, Szeder V, Nour M, McManus M, Huang J, Tarpley J, Tateshima S, Gonzalez N, Ali L, Liebeskind D, Hinman J, Calderon-Arnulphi M, Liang C, Guzy J, Koch S, DeSousa K, Gordon-Perue G, Haussen D, Elhammady M, Peterson E, Pandey V, Dharmadhikari S, Khandelwal P, Malik A, Pafford R, Gonzalez P, Ramdas K, Andersen G, Damgaard D, Von Weitzel-Mudersbach P, Simonsen C, Ruiz de Morales Ayudarte N, Poulsen M, Sørensen L, Karabegovich S, Hjørringgaard M, Hjort N, Harbo T, Sørensen K, Deshaies E, Padalino D, Swarnkar A, Latorre JG, Elnour E, El-Zammar Z, Villwock M, Farid H, Balgude A, Cross L, Hansen K, Holtmannspötter M, Kondziella D, Hoejgaard J, Taudorf S, Soendergaard H, Wagner A, Cronquist M, Stavngaard T, Cortsen M, Krarup LH, Hyldal T, Haring HP, Guggenberger S, Hamberger M, Trenkler J, Sonnberger M, Nussbaumer K, Dominger C, Bach E, Jagadeesan BD, Taylor R, Kim J, Shea K, Tummala R, Zacharatos H, Sandhu D, Ezzeddine M, Grande A, Hildebrandt D, Miller K, Scherber J, Hendrickson A, Jumaa M, Zaidi S, Hendrickson T, Snyder V, Killer-Oberpfalzer M, Mutzenbach J, Weymayr F, Broussalis E, Stadler K, Jedlitschka A, Malek A, Mueller-Kronast N, Beck P, Martin C, Summers D, Day J, Bettinger I, Holloway W, Olds K, Arkin S, Akhtar N, Boutwell C, Crandall S, Schwartzman M, Weinstein C, Brion B, Prothmann S, Kleine J, Kreiser K, Boeckh-Behrens T, Poppert H, Wunderlich S, Koch ML, Biberacher V, Huberle A, Gora-Stahlberg G, Knier B, Meindl T, Utpadel-Fischler D, Zech M, Kowarik M, Seifert C, Schwaiger B, Puri A, Hou S. Effect of general anaesthesia on functional outcome in patients with anterior circulation ischaemic stroke having endovascular thrombectomy versus standard care: a meta-analysis of individual patient data. Lancet Neurol 2018; 17:47-53. [DOI: 10.1016/s1474-4422(17)30407-6] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/05/2017] [Accepted: 10/11/2017] [Indexed: 10/18/2022]
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Leroy S, Caumette E, Waddington C, Hébert A, Brant R, Lavoie PM. A Time-Based Analysis of Inflammation in Infants at Risk of Bronchopulmonary Dysplasia. J Pediatr 2018; 192:60-65.e1. [PMID: 29092751 DOI: 10.1016/j.jpeds.2017.09.011] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 07/28/2017] [Accepted: 09/07/2017] [Indexed: 01/21/2023]
Abstract
OBJECTIVE To precisely delineate the timing and contribution of inflammation to bronchopulmonary dysplasia (BPD) in preterm infants during the neonatal period. STUDY DESIGN Longitudinal study of blood inflammatory biomarkers (interleukin [IL]-6, IL-8, and granulocyte colony-stimulating factor) measured between birth and 42 days of age, at high temporal (daily) resolution, in infants born at or below 30 weeks of gestation. Cytokine predictors of BPD at 36 weeks postmenstrual age were adjusted for infant-specific and time-dependent factors, using hierarchical mixed effects regressions models. RESULTS A total of 1518 data points were obtained in 62 infants (mean gestational age of 27 weeks). Infants who developed BPD later on presented increased inflammation after birth compared with infants without BPD. Inflammation was sustained, with gradual attenuation over 2 weeks (IL-8: OR: 6.5 [95% CI: 1.8-24]; granulocyte colony-stimulating factor: 3.3 [1.5-7.6]) and was higher in boys and in infants of lower birth weight. This inflammation preceded the clinical increased requirement in supplemental oxygen characteristic of BPD, and preceded the peak occurrence of neonatal sepsis or necrotizing enterocolitis. CONCLUSIONS Systemic inflammation occurs early in the neonatal period and precedes clinical symptoms in infants with BPD. These data provide a discrete vulnerability window period, supporting a role for targeted intensive care interventions during the early phase of BPD.
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Affiliation(s)
- Sandrine Leroy
- EA2415, Montpellier University, Montpellier, France; Mobile Pediatrics Intensive Care Unit, Avicenne hospital, AP-HP, Paris, France
| | | | - Chandra Waddington
- Neonatal Program, Children's and Women's Hospitals of British Columbia, Vancouver, British Columbia, Canada; BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Audrey Hébert
- Neonatal Program, Children's and Women's Hospitals of British Columbia, Vancouver, British Columbia, Canada; BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada; Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Rollin Brant
- Neonatal Program, Children's and Women's Hospitals of British Columbia, Vancouver, British Columbia, Canada; Department of Statistics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Pascal M Lavoie
- Neonatal Program, Children's and Women's Hospitals of British Columbia, Vancouver, British Columbia, Canada; BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada; Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada.
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Muraca GM, Skoll A, Lisonkova S, Sabr Y, Brant R, Cundiff GW, Joseph KS. Authors' reply re: Perinatal and maternal morbidity and mortality among term singletons following midcavity operative vaginal delivery versus caesarean delivery. BJOG 2017; 125:758-759. [PMID: 29131501 DOI: 10.1111/1471-0528.14980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2017] [Indexed: 12/01/2022]
Affiliation(s)
- Giulia M Muraca
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Amanda Skoll
- Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Sarka Lisonkova
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Yasser Sabr
- Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics and Gynaecology, King Saud University, King Khalid University Hospital, Riyadh, Saudi Arabia
| | - Rollin Brant
- BC Children's Hospital Research Institute, Vancouver, BC, Canada.,Department of Statistics, University of British Columbia, Vancouver, BC, Canada
| | - Geoffrey W Cundiff
- Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - K S Joseph
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
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Muraca GM, Skoll A, Lisonkova S, Sabr Y, Brant R, Cundiff GW, Joseph KS. Authors' reply re: Perinatal and maternal morbidity and mortality among term singletons following midcavity operative vaginal delivery versus caesarean delivery. BJOG 2017; 125:760. [PMID: 29131476 DOI: 10.1111/1471-0528.14981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2017] [Indexed: 11/28/2022]
Affiliation(s)
- G M Muraca
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - A Skoll
- Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - S Lisonkova
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Y Sabr
- Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics and Gynaecology, King Saud University, King Khalid University Hospital, Riyadh, Saudi Arabia
| | - R Brant
- BC Children's Hospital Research Institute, Vancouver, BC, Canada.,Department of Statistics, University of British Columbia, Vancouver, BC, Canada
| | - G W Cundiff
- Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - K S Joseph
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
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Muraca GM, Skoll A, Lisonkova S, Sabr Y, Brant R, Cundiff GW, Joseph KS. Response to "Data limitations may affect conclusions in study of vaginal delivery at midpelvic station". CMAJ 2017; 189:E1344-E1345. [PMID: 29084763 DOI: 10.1503/cmaj.733350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Affiliation(s)
- Giulia M Muraca
- School of Population and Public Health, Department of Obstetrics & Gynaecology, The University of British Columbia, Vancouver, BC
| | - Amanda Skoll
- Associate Professor, School of Population and Public Health, Department of Obstetrics & Gynaecology, The University of British Columbia, Vancouver, BC
| | - Sarka Lisonkova
- Associate Professor, School of Population and Public Health, Department of Obstetrics & Gynaecology, The University of British Columbia, Vancouver, BC
| | - Yasser Sabr
- Graduate Student, Department of Obstetrics & Gynaecology, The University of British Columbia, Vancouver, BC; Assistant Professor, Department of Obstetrics and Gynaecology, King Saud University, Riyadh, Saudi Arabia
| | - Rollin Brant
- Professor, Department of Statistics, The University of British Columbia, Vancouver, BC
| | - Geoffrey W Cundiff
- Head and Professor, Department of Obstetrics & Gynaecology, The University of British Columbia, Vancouver, BC
| | - K S Joseph
- Professor, School of Population and Public Health, Department of Obstetrics & Gynaecology, The University of British Columbia, Vancouver, BC
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Muraca GM, Lisonkova S, Joseph KS, Skoll A, Cundiff GW, Brant R, Sabr Y. The authors reply to "The end of forceps deliveries?" and "Beware selection bias". CMAJ 2017; 189:E1098. [PMID: 28847784 DOI: 10.1503/cmaj.733285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Affiliation(s)
- Giulia M Muraca
- School of Population and Public Health, and Department of Obstetrics & Gynaecology, The University of British Columbia, Vancouver, BC
| | - Sarka Lisonkova
- School of Population and Public Health, and Department of Obstetrics & Gynaecology, The University of British Columbia, Vancouver, BC
| | - K S Joseph
- School of Population and Public Health, and Department of Obstetrics & Gynaecology, The University of British Columbia, Vancouver, BC
| | - Amanda Skoll
- Department of Obstetrics & Gynaecology, The University of British Columbia, Vancouver, BC
| | - Geoffrey W Cundiff
- Department of Obstetrics & Gynaecology, The University of British Columbia, Vancouver, BC
| | - Rollin Brant
- Department of Statistics, The University of British Columbia, Vancouver, BC
| | - Yasser Sabr
- Department of Obstetrics & Gynaecology, The University of British Columbia, Vancouver, BC, and Department of Obstetrics and Gynaecology, King Saud University, Riyadh, Saudi Arabia
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Muraca GM, Skoll A, Lisonkova S, Sabr Y, Brant R, Cundiff GW, Joseph KS. Perinatal and maternal morbidity and mortality among term singletons following midcavity operative vaginal delivery versus caesarean delivery. BJOG 2017; 125:693-702. [PMID: 28692173 PMCID: PMC5947834 DOI: 10.1111/1471-0528.14820] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2017] [Indexed: 11/30/2022]
Abstract
Objective To quantify severe perinatal and maternal morbidity/mortality associated with midcavity operative vaginal delivery compared with caesarean delivery. Design Population‐based, retrospective cohort study. Setting British Columbia, Canada. Population Term, singleton deliveries (2004–2014) by attempted midcavity operative vaginal delivery or caesarean delivery in the second stage of labour, stratified by indication for operative delivery (n = 10 901 deliveries; 5057 indicated for dystocia, 5844 for fetal distress). Methods Multinomial propensity scores and mulitvariable log‐binomial regression models were used to estimate adjusted rate ratios (ARR) and 95% confidence intervals (95% CI). Main outcome measures Composite severe perinatal morbidity/mortality (e.g. convulsions, severe birth trauma and perinatal death) and severe maternal morbidity (e.g. severe postpartum haemorrhage, shock, sepsis and cardiac complications). Results Among deliveries with dystocia, attempted midcavity operative vaginal delivery was associated with higher rates of severe perinatal morbidity/mortality compared with caesarean delivery (forceps ARR 2.11, 95% CI 1.46–3.07; vacuum ARR 2.71, 95% CI 1.49–3.15; sequential ARR 4.68, 95% CI 3.33–6.58). Rates of severe maternal morbidity/mortality were also higher following midcavity operative vaginal delivery (forceps ARR 1.57, 95% CI 1.05–2.36; vacuum ARR 2.29, 95% CI 1.57–3.36). Among deliveries with fetal distress, there were significant increases in severe perinatal morbidity/mortality following attempted midcavity vacuum (ARR 1.28, 95% CI 1.04–1.61) and in severe maternal morbidity following attempted midcavity forceps delivery (ARR 2.34, 95% CI 1.54–3.56). Conclusion Attempted midcavity operative vaginal delivery is associated with higher rates of severe perinatal morbidity/mortality and severe maternal morbidity, though these effects differ by indication and instrument. Tweetable abstract Perinatal and maternal morbidity is increased following midcavity operative vaginal delivery. Tweetable abstract Perinatal and maternal morbidity is increased following midcavity operative vaginal delivery.
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Affiliation(s)
- G M Muraca
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - A Skoll
- Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - S Lisonkova
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Y Sabr
- Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics and Gynaecology, King Saud University, King Khalid University Hospital, Riyadh, Saudi Arabia
| | - R Brant
- BC Children's Hospital Research Institute, Vancouver, BC, Canada.,Department of Statistics, University of British Columbia, Vancouver, BC, Canada
| | - G W Cundiff
- Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - K S Joseph
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
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Wood S, Rabi Y, Tang S, Brant R, Ross S. Progesterone in women with arrested premature labor, a report of a randomised clinical trial and updated meta-analysis. BMC Pregnancy Childbirth 2017; 17:258. [PMID: 28768474 PMCID: PMC5541428 DOI: 10.1186/s12884-017-1400-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 07/02/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Progesterone may be effective in prevention of premature birth in some high risk populations. Women with arrested premature labor are at risk of recurrent labor and maintenance therapy with standard tocolytics has not been successful. METHODS Randomized double blinded clinical trial of daily treatment with 200 mg vaginal progesterone in women with arrested premature labor and an updated meta-analysis. RESULTS The clinical trial was terminated early after 41 women were enrolled. Vaginal progesterone treatment did not change the median gestational age at delivery: 36+2 weeks versus 36+4 weeks, p = .865 nor increase the mean latency to delivery: 44.5 days versus 46.6 days, p = .841. In the updated meta-analysis, progesterone treatment did reduce delivery <37 weeks gestation and increase latency to delivery, but this treatment effect was not evident in the high quality trials: (OR 1.23, 95% CI 0.91, 1.67) and (-0.95 days, 95% CI -5.54, 3.64) respectively. CONCLUSION Progesterone is not effective for preventing preterm birth following arrested preterm labor.
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Affiliation(s)
- Stephen Wood
- Department of Obstetrics and Gynaecology, University of Calgary, 4th Floor, North Tower, Foothills Medical Centre 1441 - 29th Street NW, Calgary, AB T2N 2T9 Canada
| | - Yacov Rabi
- Alberta Children’s Hospital Research Institute, Foothills Medical Centre, Room, rm C211 1403 - 29th Street NW, Calgary, AB T2N 2T9 Canada
| | - Selphee Tang
- Department of Obstetrics and Gynaecology, University of Calgary, 4th Floor, North Tower, Foothills Medical Centre 1441 - 29th Street NW, Calgary, AB T2N 2T9 Canada
| | - Rollin Brant
- Department of Statistics, University of British Columbia, ESB rm 3146, 2207 Main Mall F512-4480 Oak Street, Vancouver, BC Canada
| | - Susan Ross
- Obstetrics & Gynecology, University of Alberta, 5S141 Lois Hole Hosp/Robbins Pav/RAH, Edmonton, AB T5H 3V9 Canada
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Remmers JE, Topor Z, Grosse J, Vranjes N, Mosca EV, Brant R, Bruehlmann S, Charkhandeh S, Zareian Jahromi SA. A Feedback-Controlled Mandibular Positioner Identifies Individuals With Sleep Apnea Who Will Respond to Oral Appliance Therapy. J Clin Sleep Med 2017; 13:871-880. [PMID: 28502280 DOI: 10.5664/jcsm.6656] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 05/03/2017] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES Mandibular protruding oral appliances represent a potentially important therapy for obstructive sleep apnea (OSA). However, their clinical utility is limited by a less-than-ideal efficacy rate and uncertainty regarding an efficacious mandibular position, pointing to the need for a tool to assist in delivery of the therapy. The current study assesses the ability to prospectively identify therapeutic responders and determine an efficacious mandibular position. METHODS Individuals (n = 202) with OSA participated in a blinded, 2-part investigation. A system for identifying therapeutic responders was developed in part 1 (n = 149); the predictive accuracy of this system was prospectively evaluated on a new population in part 2 (n = 53). Each participant underwent a 2-night, in-home feedback-controlled mandibular positioner (FCMP) test, followed by treatment with a custom oral appliance and an outcome study with the oral appliance in place. A machine learning classification system was trained to predict therapeutic outcome on data obtained from FCMP studies on part 1 participants. The accuracy of this trained system was then evaluated on part 2 participants by examining the agreement between prospectively predicted outcome and observed outcome. A predicted efficacious mandibular position was derived from each FCMP study. RESULTS Predictive accuracy was as follows: sensitivity 85%; specificity 93%; positive predictive value 97%; and negative predictive value 72%. Of participants correctly predicted to respond to therapy, the predicted mandibular protrusive position proved efficacious in 86% of cases. CONCLUSIONS An unattended, in-home FCMP test prospectively identifies individuals with OSA who will respond to oral appliance therapy and provides an efficacious mandibular position. CLINICAL TRIAL REGISTRATION The trial that this study reports on is registered on www.clinicaltrials.gov, ID NCT03011762, study name: Feasibility and Predictive Accuracy of an In-Home Computer Controlled Mandibular Positioner in Identifying Favourable Candidates for Oral Appliance Therapy.
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Affiliation(s)
- John E Remmers
- University of Calgary, Calgary, Canada.,Zephyr Sleep Technologies, Calgary, Canada
| | - Zbigniew Topor
- University of Calgary, Calgary, Canada.,Zephyr Sleep Technologies, Calgary, Canada
| | | | | | | | - Rollin Brant
- University of British Columbia, Vancouver, Canada
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Muraca GM, Sabr Y, Lisonkova S, Skoll A, Brant R, Cundiff GW, Joseph KS. Perinatal and maternal morbidity and mortality after attempted operative vaginal delivery at midpelvic station. CMAJ 2017; 189:E764-E772. [PMID: 28584040 DOI: 10.1503/cmaj.161156] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2017] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Increased use of operative vaginal delivery (i.e., forceps or vacuum application), of which 20% occurs at midpelvic station, has been advocated to reduce the rate of cesarean delivery. We aimed to quantify severe perinatal and maternal morbidity and mortality associated with attempted midpelvic operative vaginal delivery. METHODS We studied all term singleton deliveries in Canada between 2003 and 2013, by attempted midpelvic operative vaginal or cesarean delivery with labour (with and without prolonged second stage). The primary outcomes were composite severe perinatal morbidity and mortality (e.g., convulsions, assisted ventilation, severe birth trauma and perinatal death), and composite severe maternal morbidity and mortality (e.g., severe postpartum hemorrhage, shock, sepsis, cardiac complications, acute renal failure and death). RESULTS The study population included 187 234 deliveries. Among women with dystocia and prolonged second stage of labour, midpelvic operative vaginal delivery was associated with higher rates of severe perinatal morbidity and mortality compared with cesarean delivery (forceps, adjusted odds ratio [AOR] 1.81, 95% confidence interval [CI] 1.24 to 2.64; vacuum, AOR 1.81, 95% CI 1.17 to 2.80; sequential instruments, AOR 3.19, 95% CI 1.73 to 5.88), especially with higher rates of severe birth trauma. Rates of severe maternal morbidity and mortality were not significantly different after operative vaginal delivery, although rates of obstetric trauma were higher (forceps, AOR 4.51, 95% CI 4.04 to 5.02; vacuum, AOR 2.70, 95% CI 2.35 to 3.09; sequential instruments, AOR 4.24, 95% CI 3.46 to 5.19). Among women with fetal distress, similar associations were seen for severe birth trauma and obstetric trauma, although vacuum was associated with lower rates of severe maternal morbidity and mortality (AOR 0.52, 95% CI 0.33 to 0.80). Associations tended to be stronger among women without a prolonged second stage. INTERPRETATION Midpelvic operative vaginal delivery is associated with higher rates of severe birth trauma and obstetric trauma, whereas overall rates of severe perinatal and maternal morbidity and mortality vary by indication and operative instrument.
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Affiliation(s)
- Giulia M Muraca
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph); Department of Statistics (Brant), The University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia
| | - Yasser Sabr
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph); Department of Statistics (Brant), The University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia
| | - Sarka Lisonkova
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph); Department of Statistics (Brant), The University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia
| | - Amanda Skoll
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph); Department of Statistics (Brant), The University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia
| | - Rollin Brant
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph); Department of Statistics (Brant), The University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia
| | - Geoffrey W Cundiff
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph); Department of Statistics (Brant), The University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia
| | - K S Joseph
- School of Population and Public Health (Muraca, Lisonkova, Joseph); Department of Obstetrics & Gynaecology (Muraca, Sabr, Lisonkova, Skoll, Cundiff, Joseph); Department of Statistics (Brant), The University of British Columbia, Vancouver, BC; Department of Obstetrics and Gynaecology (Sabr), King Saud University, Riyadh, Saudi Arabia
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Tu AW, Watts AW, Chanoine JP, Panagiotopoulos C, Geller J, Brant R, Barr SI, Mâsse L. Does parental and adolescent participation in an e-health lifestyle modification intervention improves weight outcomes? BMC Public Health 2017; 17:352. [PMID: 28438202 PMCID: PMC5402679 DOI: 10.1186/s12889-017-4220-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Accepted: 04/01/2017] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Few studies have evaluated the effect of adherence to a lifestyle intervention on adolescent health outcomes. The objective of this study was to determine whether adolescent and parental adherence to components of an e-health intervention resulted in change in adolescent body mass index (BMI) and waist circumference (WC) z-scores in a sample of overweight/obese adolescents. METHODS In total, 159 overweight/obese adolescents and their parents participated in an 8-month e-health lifestyle intervention. Each week, adolescents and their parents were asked to login to their respective website and to monitor their dietary, physical activity, and sedentary behaviours. We examined participation (percentage of webpages viewed [adolescents]; number of weeks logged in [parents]) and self-monitoring (number of weeks behaviors were tracked) rates. Linear mixed models and multiple regressions were used to examine change in adolescent BMI and WC z-scores and predictors of adolescent participation and self-monitoring, respectively. RESULTS Adolescents and parents completed 28% and 23%, respectively, of the online component of the intervention. Higher adolescent participation rate was associated with a decrease in the slope of BMI z-score but not with change in WC z-score. No association was found between self-monitoring rate and change in adolescent BMI or WC z-scores. Parent participation was not found to moderate the relationship between adolescent participation and weight outcomes. CONCLUSIONS Developing strategies for engaging and promoting supportive interactions between adolescents and parents are needed in the e-health context. Findings demonstrate that improving adolescents' adherence to e-health lifestyle intervention can effectively alter the weight trajectory of overweight/obese adolescents.
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Affiliation(s)
- Andrew W. Tu
- School of Population and Public Health, University of British Columbia, 2206 East Mall, Vancouver, BC V6T 1Z3 Canada
| | - Allison W. Watts
- School of Public Health, University of Minnesota, 1300 South Second St, Suite 300, Minneapolis, MN 55454 USA
| | - Jean-Pierre Chanoine
- Department of Pediatrics, University of British Columbia, 4480 Oak Street, Vancouver, BC V6H 3V4 Canada
| | | | - Josie Geller
- Department of Psychology, University of British Columbia, 2255 Wesbrook Mall, Vancouver, BC V6T 2A1 Canada
| | - Rollin Brant
- Department of Statistics, University of British Columbia, 4480 Oat Street, Vancouver, BC V6H 3V4 Canada
| | - Susan I. Barr
- Food Nutrition and Health, University of British Columbia, 2205 East Mall, Vancouver, BC V6T 1Z4 Canada
| | - Louise Mâsse
- BC Children’s Hospital Research Institute, School of Population and Public Health, University of British Columbia, 2206 East Mall, Vancouver, BC V6T 1Z3 Canada
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Malavolti AM, Chau V, Brown-Lum M, Poskitt KJ, Brant R, Synnes A, Grunau RE, Miller SP. Association between corpus callosum development on magnetic resonance imaging and diffusion tensor imaging, and neurodevelopmental outcome in neonates born very preterm. Dev Med Child Neurol 2017; 59:433-440. [PMID: 27976377 DOI: 10.1111/dmcn.13364] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/02/2016] [Indexed: 11/28/2022]
Abstract
AIM To characterize corpus callosum development in neonates born very preterm from early in life to term-equivalent age and its relationship with neurodevelopmental outcome at 18 months corrected age. METHOD In a prospective cohort of 193 neonates born preterm, 24 to 32 weeks' gestation, we used magnetic resonance imaging and diffusion tensor imaging acquired early in life (n=193) and at term-equivalent age (n=159) to measure corpus callosum development: mid-sagittal area (including corpus callosum subdivisions) and length, and fractional anisotropy from the genu and splenium. We examined the association of (1) intraventricular haemorrhage (IVH) and white matter injury (WMI) severity, and (2) neurodevelopmental outcome at 18 months corrected age with corpus callosum development. RESULTS Severe WMI and severe IVH were strongly associated with reduced corpus callosum area (both p<0.001) and WMI with lower fractional anisotropy (p=0.002). Mild WMI predicted smaller corpus callosum area only posteriorly; mild IVH predicted smaller area throughout. Adverse motor outcome was associated with smaller corpus callosum size in the posterior subdivision (p=0.003). Abnormal cognitive outcomes were associated with lower corpus callosum fractional anisotropy (p=0.008). INTERPRETATION In newborn infants born very preterm, brain injury is associated with changes in simple metrics of corpus callosum development. In this population, the development of the corpus callosum, as reflected by size and microstructure, is associated with neurodevelopmental outcomes at 18 months corrected age.
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Affiliation(s)
- Anna M Malavolti
- Department of Pediatrics, University of British Columbia and BC Children's and Women's Hospital, Vancouver, BC, Canada
| | - Vann Chau
- Department of Pediatrics, University of British Columbia and BC Children's and Women's Hospital, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada.,Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, ON, Canada.,Neurosciences and Mental Health, SickKids Research Institute, Toronto, ON, Canada
| | - Meisan Brown-Lum
- Department of Pediatrics, University of British Columbia and BC Children's and Women's Hospital, Vancouver, BC, Canada
| | - Kenneth J Poskitt
- Department of Pediatrics, University of British Columbia and BC Children's and Women's Hospital, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada.,Department of Radiology, University of British Columbia and BC Children's Hospital, Vancouver, BC, Canada
| | - Rollin Brant
- BC Children's Hospital Research Institute, Vancouver, BC, Canada.,Statistics, University of British Columbia and BC Children's Hospital, Vancouver, BC, Canada
| | - Anne Synnes
- Department of Pediatrics, University of British Columbia and BC Children's and Women's Hospital, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Ruth E Grunau
- Department of Pediatrics, University of British Columbia and BC Children's and Women's Hospital, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Steven P Miller
- Department of Pediatrics, University of British Columbia and BC Children's and Women's Hospital, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, Vancouver, BC, Canada.,Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, ON, Canada.,Neurosciences and Mental Health, SickKids Research Institute, Toronto, ON, Canada
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Janssen PA, Stienen JJC, Brant R, Hanley GE. A Predictive Model for Cesarean Among Low-Risk Nulliparous Women in Spontaneous Labor at Hospital Admission. Birth 2017; 44:21-28. [PMID: 27748986 DOI: 10.1111/birt.12257] [Citation(s) in RCA: 7] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/14/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND To determine if maternal characteristics measurable upon admission to hospital predict cesarean among low-risk spontaneously laboring nulliparous women. METHODS We undertook a secondary analysis of data from a clinical trial of early labor support for nulliparous women carrying a singleton fetus in cephalic presentation at 37-41 weeks of gestation in British Columbia, Canada. Study participants did not have any discernible risk factors for cesarean at the onset of labor. We developed a prediction model using logistic regression from a sample of 1,302 participants. Internal validation of the model was accomplished by 10-fold cross validation, after which probability scores were calculated based on the mean logistic regression model. To determine the accuracy of our predictive model, we calculated the specificity and sensitivity and the area under the receiver operating curve. RESULTS Advanced maternal age, shorter maternal height, greater gestational age, perception of labor lasting more than 24 hours, and mild or moderate contractions, less cervical dilation, and higher fetal station at time of hospital admission independently predicted cesarean. The C-statistic for the predictive model was 0.71 (0.64-0.75) and the sensitivity and specificity of the model were 0.80 (95% CI 0.76-0.84) and 0.48 (95% CI 0.44-0.52), respectively. CONCLUSIONS Among nulliparous women without apparent risk for cesarean at the time of hospital admission, cesarean delivery can be predicted with 70 percent accuracy using routinely collected information. Tailoring intrapartum care to promote vaginal birth according to a prediction model for cesarean risk deserves further study among apparently low risk women.
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Affiliation(s)
- Patricia A Janssen
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Child and Family Research Institute, Vancouver, BC, Canada
| | - Jozette J C Stienen
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Radboud University Nijmegen Medical Centre, Scientific Institute for Quality of Healthcare (IQ healthcare), Nijmegen, the Netherlands
| | - Rollin Brant
- Child and Family Research Institute, Vancouver, BC, Canada
| | - Gillian E Hanley
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,Child and Family Research Institute, Vancouver, BC, Canada
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Görges M, Zhou G, Brant R, Ansermino JM. Sequential allocation trial design in anesthesia: an introduction to methods, modeling, and clinical applications. Paediatr Anaesth 2017; 27:240-247. [PMID: 28211193 DOI: 10.1111/pan.13088] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/01/2016] [Indexed: 02/06/2023]
Abstract
Estimation of the dose-response curve for new anesthetic protocols typically focuses on identifying minimum effective doses. The application of a sequential experimental method is appropriate, as it minimizes sample size requirements by updating dose assignments based on information accrued from successive subjects. One approach is the up-and-down method for estimating the median effective dose in a patient population (ED50 ). Designs better suited for achieving greater than 50% effectiveness, include the biased coin approach, and continual reassessment method. In this review we introduce different sequential design methods, provide examples of their use, and show through simulation how the method employed influences sample size and the accuracy of the estimated dose. Simulation studies are presented to illustrate the effects of dose parameter and stopping rule choice for up-and-down method and biased coin approach. For continual reassessment method, the effects of assumed dose-response model, prior guess, and cohort size are simulated. A binary response regression curve was fit to the data in Saidman and Eger's endtidal halothane dose-finding study to provide a dose-response curve for generating simulations. A range of options exist when designing a study using sequential allocation with biased coin approach or continual reassessment method. Method choice influences the required sample size and confidence in estimated effect. In the halothane example, up-and-down method decreases the required sample size by 20-30% when the choice of design parameters is optimal. For both up-and-down method and biased coin approach designs, greater sample sizes, arising from adjusted stopping criteria, might be required to achieve reliable estimates. The continual reassessment method is only efficient if a limited range of doses can be chosen a priori. In conclusion the up-and-down method can be more efficient than nonsequential designs for the estimation of the median dose/intervention level for a given intervention (ED50 ). The biased coin approach or continual reassessment method are preferred for the estimation of higher or lower tail quantiles such as ED90 or ED10 . Continual reassessment method may be superior if knowledge of the dose-response relationship is available for the drug of interest.
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Affiliation(s)
- Matthias Görges
- Department of Anesthesiology, Pharmacology, and Therapeutics, The University of British Columbia, Vancouver, Canada.,Research Institute, BC Children's Hospital, Vancouver, Canada
| | - Guohai Zhou
- Department of Statistics, The University of British Columbia, Vancouver, Canada
| | - Rollin Brant
- Department of Statistics, The University of British Columbia, Vancouver, Canada
| | - J Mark Ansermino
- Department of Anesthesiology, Pharmacology, and Therapeutics, The University of British Columbia, Vancouver, Canada
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Muraca GM, Lisonkova S, Sabr Y, Skoll A, Brant R, Cundiff GW, Joseph K. 914: Delivery options for second stage dystopia: a comparison of operative vaginal and cesarean delivery in terms of severe perinatal and maternal morbidity and mortality. Am J Obstet Gynecol 2017. [DOI: 10.1016/j.ajog.2016.11.823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Hebert MA, Jansen JJ, Brant R, Hailey D, van der Pol M. Successes and challenges in a field-based, multi-method study of home telehealth. J Telemed Telecare 2016; 10 Suppl 1:41-4. [PMID: 15603606 DOI: 10.1258/1357633042614348] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We are conducting a three-year study of telehealth in 11 home care offices that serve rural clients in Alberta. Three hundred and twenty palliative home care clients are being recruited to participate in a randomized controlled trial (RCT) to answer three questions about the use of video-phones and their effect on symptom management, quality of life and cost, as well as readiness to use the technology. Both successes and challenges have been identified in three main areas: technology, people/organizational issues and study design. Maintaining study integrity has been the key factor in decision making, as adjustments from the original proposal are made. It is already clear that field-based RCTs are feasible, but require commitment and flexibility on the part of researchers and community partners to work through the study implementation.
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Affiliation(s)
- M A Hebert
- Health Telematics Unit, Faculty of Medicine, University of Calgary, Alberta, Canada.
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Hebert MA, Brant R, Hailey D, Van Der Pol M. Potential and readiness for video-visits in rural palliative homecare: results of a multi-method study in Canada. J Telemed Telecare 2016. [DOI: 10.1258/135763306779380093] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We compared conventional palliative homecare visits and a combination of conventional and home telehealth ‘video-visits’ with respect to symptom management and quality of life. Participants were recruited from 11 rural communities in Alberta and randomized to the treatment or control groups, remaining in the study for 8 weeks. Although we planned to recruit 200 clients over two years, only 44 clients participated. Factors contributing to low recruitment included the introduction of new service delivery models and changes in the home care environment. No significant differences were found between the groups in measures of symptom management and quality of life. Compared to the home care nurses, clients generally indicated a higher level of readiness to use the technology. The study suggested that videophone technology would probably not be adopted for palliative home care in the population that was studied although it might be considered for other applications in the management of chronic illnesses.
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Affiliation(s)
- Marilynne A Hebert
- e-Health/Telehealth Research and Training Program, University of Calgary, Calgary, Alberta, Canada
| | - Rollin Brant
- Department of Statistics, University of British Columbia, Vancouver, British Columbia, Canada
| | - David Hailey
- e-Health/Telehealth Research and Training Program, University of Calgary, Calgary, Alberta, Canada
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Affiliation(s)
- Guohai Zhou
- Department of Statistics, University of British Columbia, Vancouver, Canada
| | - Lang Wu
- Department of Statistics, University of British Columbia, Vancouver, Canada
| | - Rollin Brant
- Department of Statistics, University of British Columbia, Vancouver, Canada
| | - J. Mark Ansermino
- Department of Anesthesiology, Pharmacology & Therapeutics, University of British Columbia, Vancouver, Canada
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Samiedaluie S, Peterson S, Brant R, Kaczorowski J, Norman WV. Validating abortion procedure coding in Canadian administrative databases. BMC Health Serv Res 2016; 16:255. [PMID: 27406214 PMCID: PMC4942914 DOI: 10.1186/s12913-016-1485-4] [Citation(s) in RCA: 8] [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: 12/21/2015] [Accepted: 06/17/2016] [Indexed: 11/20/2022] Open
Abstract
Background The British Columbia (BC) Ministry of Health collects abortion procedure data in the Medical Services Plan (MSP) physician billings database and in the hospital information Discharge Abstracts Database (DAD). Our study seeks to validate abortion procedure coding in these databases. Methods Two randomized controlled trials enrolled a cohort of 1031 women undergoing abortion. The researcher collected database includes both enrollment and follow up chart review data. The study cohort was linked to MSP and DAD data to identify all abortions events captured in the administrative databases. We compared clinical chart data on abortion procedures with health administrative data. We considered a match to occur if an abortion related code was found in administrative data within 30 days of the date of the same event documented in a clinical chart. Results Among 1158 abortion events performed during enrollment and follow-up period, 99.1 % were found in at least one of the administrative data sources. The sensitivities for the two databases, evaluated using a gold standard, were 97.7 % (95 % confidence interval (CI): 96.6–98.5) for the MSP database and 91.9 % (95 % CI: 90.0–93.4) for the DAD. Conclusions Abortion events coded in the BC health administrative databases are highly accurate. Single-payer health administrative databases at the provincial level in Canada have the potential to offer valid data reflecting abortion events. Trial registration ClinicalTrials.gov Identifier NCT01174225, Current Controlled Trials ISRCTN19506752.
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Affiliation(s)
- Saied Samiedaluie
- Department of Family Practice, University of British Columbia, Vancouver, Canada.
| | - Sandra Peterson
- Centre for Health Services and Policy Research, School of Population and Public Health, University of British Columbia, Vancouver, Canada
| | - Rollin Brant
- Department of Statistics, University of British Columbia, Vancouver, Canada
| | - Janusz Kaczorowski
- Département de médecine de famille et de médecine d'urgence, l'Université de Montréal, Montréal, Canada
| | - Wendy V Norman
- Department of Family Practice, University of British Columbia, Vancouver, Canada
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Abstract
The opinion of some test experts is that negation (e.g., not, except) should be used sparingly or avoided in the stems of multiplechoice items. In these items, examinees are required to select the one alternative that is false from among those that are true. However, negation continues to be used and frequently accounts for 15-20% of the multiple-choice items within a given medical examination. A 90-item multiple-choice examination was administered in various formats to approximately 200 nursing students in each of two consecutive academic years. The findings of the present study provide evidence that the use of negation in stems should be limited and that the single-response, negatively worded (SRNW) item should often be converted to a multiple-response, positively worded (MRPW) item. This recommendation is based on the inherent cuing (ie., eliminating some alternatives by comparative deduction) within SRNW items and on an increase in the reliability and concurrent validity of MRPW test scores.
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Abstract
There is accumulating evidence that negation (e.g., not, except) should be used sparingly or avoided in the stems of multiple-choice items. In these items, examinees are required to select the one alternative that isfalse from among those that are true. The same items can also be given as positively worded multiple-response items in which the student is directed to identify those alternatives that are true. The present study compared the responses of examinees on single-response, negatively worded (SRNW) items and on multiple-response, positively worded (MRPW) items. The experimental design allowed students to respond to both SRNW and MRPW formats that employed identical item alternatives. The findings of this study provide further evidence that the use of negation in stems shouldbe limited and that the SRNW item should often be converted to an MRPW item. This recommendation is based on the inherent cuing (i.e., the artificial elevation of student scores) observed within SRNW items that significantly lowers item reliability and greatly distorts information about examinee performance.
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Muraca GM, Sabr Y, Brant R, Cundiff GW, Joseph KS. Temporal and Regional Variations in Operative Vaginal Delivery in Canada by Pelvic Station, 2004-2012. J Obstet Gynaecol Can 2016; 38:627-35. [PMID: 27591346 DOI: 10.1016/j.jogc.2016.04.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Accepted: 03/01/2016] [Indexed: 01/06/2023]
Abstract
OBJECTIVE To describe temporal and regional variations in Canada in the use of operative vaginal delivery (OVD) at term for singleton pregnancies by pelvic station between 2004 and 2013. METHODS Rates of OVD among term singleton pregnancies in Canada (excluding Quebec) were estimated using information from the Discharge Abstract Database of the Canadian Institute for Health Information for the years 2004-2012 (n = 2 284 109). Deliveries were stratified by pelvic station. Temporal trends were assessed using the Cochran-Armitage test for linear trend in proportions by year. Geographic variation was assessed by calculating the rate and 95% confidence interval of each mode of delivery from 2010-2012 for each province and territory. RESULTS Among singleton pregnancies at term, the OVD rate decreased from 12.0% in 2004 to 10.7% in 2012 (P < 0.001), whereas Caesarean section rates (excluding those following failed OVDs) increased from 24.9% to 26.7%. Forceps deliveries decreased from 3.1% to 2.5%, primarily due to decreases in midpelvic forceps delivery. Vacuum-assisted delivery increased significantly at outlet and low stations (by 26.0% and 15.1%, respectively) and remained stable at midpelvic station. The failed OVD rate was 0.3% and decreased by 23.7% (P < 0.001). There were large variations in OVD rates by province. CONCLUSION Temporal trends in OVD rates varied by pelvic station, with rates of outlet and low OVD increasing and rates of midpelvic and failed OVD decreasing. Vacuum extraction is increasingly replacing forceps deliveries at outlet and low stations, whereas Caesarean sections are replacing forceps deliveries at midpelvic stations. Variations in OVD rates across provinces suggest differences in instrument preference and/or an evolution in standards of practice.
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Affiliation(s)
- Giulia M Muraca
- School of Population and Public Health, University of British Columbia, Vancouver BC; Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver BC; Children's and Women's Hospital and Health Centre of British Columbia, Vancouver BC
| | - Yasser Sabr
- Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver BC; Children's and Women's Hospital and Health Centre of British Columbia, Vancouver BC; Department of Obstetrics and Gynaecology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Rollin Brant
- Department of Statistics, University of British Columbia, Vancouver BC
| | - Geoffrey W Cundiff
- Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver BC; Children's and Women's Hospital and Health Centre of British Columbia, Vancouver BC
| | - K S Joseph
- School of Population and Public Health, University of British Columbia, Vancouver BC; Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver BC; Children's and Women's Hospital and Health Centre of British Columbia, Vancouver BC
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Zwicker JG, Miller SP, Grunau RE, Chau V, Brant R, Studholme C, Liu M, Synnes A, Poskitt KJ, Stiver ML, Tam EWY. Smaller Cerebellar Growth and Poorer Neurodevelopmental Outcomes in Very Preterm Infants Exposed to Neonatal Morphine. J Pediatr 2016; 172:81-87.e2. [PMID: 26763312 PMCID: PMC5462546 DOI: 10.1016/j.jpeds.2015.12.024] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 11/10/2015] [Accepted: 12/09/2015] [Indexed: 01/01/2023]
Abstract
OBJECTIVE To examine the relationship between morphine exposure and growth of the cerebellum and cerebrum in very preterm neonates from early in life to term-equivalent age, as well as to examine morphine exposure and brain volumes in relation to neurodevelopmental outcomes at 18 months corrected age (CA). STUDY DESIGN A prospective cohort of 136 very preterm neonates (24-32 weeks gestational age) was serially scanned with magnetic resonance imaging near birth and at term-equivalent age for volumetric measurements of the cerebellum and cerebrum. Motor outcomes were assessed with the Peabody Developmental Motor Scales, Second Edition and cognitive outcomes with the Bayley Scales of Infant and Toddler Development, Third Edition at 18 months CA. Generalized least squares models and linear regression models were used to assess relationships between morphine exposure, brain volumes, and neurodevelopmental outcomes. RESULTS A 10-fold increase in morphine exposure was associated with a 5.5% decrease in cerebellar volume, after adjustment for multiple clinical confounders and total brain volume (P = .04). When infants exposed to glucocorticoids were excluded, the association of morphine was more pronounced, with an 8.1% decrease in cerebellar volume. Morphine exposure was not associated with cerebral volume (P = .30). Greater morphine exposure also predicted poorer motor (P < .001) and cognitive outcomes (P = .006) at 18 months CA, an association mediated, in part, by slower brain growth. CONCLUSIONS Morphine exposure in very preterm neonates is independently associated with impaired cerebellar growth in the neonatal period and poorer neurodevelopmental outcomes in early childhood. Alternatives to better manage pain in preterm neonates that optimize brain development and functional outcomes are urgently needed.
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Affiliation(s)
- Jill G Zwicker
- Department of Occupational Science and Occupational Therapy, University of British Columbia, Vancouver, Canada; Department of Pediatrics, University of British Columbia, Vancouver, Canada; Child and Family Research Institute, Vancouver, Canada.
| | - Steven P Miller
- Department of Pediatrics, University of British Columbia, Vancouver, Canada,Child & Family Research Institute, Vancouver, Canada,Department of Pediatrics, Hospital for Sick Children and University of Toronto, Toronto, Canada
| | - Ruth E Grunau
- Department of Pediatrics, University of British Columbia, Vancouver, Canada,Child & Family Research Institute, Vancouver, Canada,British Columbia Women’s Hospital, Vancouver, Canada
| | - Vann Chau
- Department of Pediatrics, Hospital for Sick Children and University of Toronto, Toronto, Canada
| | - Rollin Brant
- Child & Family Research Institute, Vancouver, Canada,Department of Statistics, University of British Columbia, Vancouver, Canada
| | - Colin Studholme
- Departments of Bioengineering & Pediatrics, University of Washington, Seattle, USA
| | - Mengyuan Liu
- Departments of Bioengineering & Pediatrics, University of Washington, Seattle, USA
| | - Anne Synnes
- Department of Pediatrics, University of British Columbia, Vancouver, Canada,Child & Family Research Institute, Vancouver, Canada,British Columbia Women’s Hospital, Vancouver, Canada
| | - Kenneth J Poskitt
- Child & Family Research Institute, Vancouver, Canada,Department of Radiology, University of British Columbia, Vancouver, Canada
| | - Mikaela L Stiver
- Department of Pediatrics, Hospital for Sick Children and University of Toronto, Toronto, Canada
| | - Emily WY Tam
- Department of Pediatrics, Hospital for Sick Children and University of Toronto, Toronto, Canada
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49
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Tam EW, Chau V, Barkovich AJ, Ferriero DM, Miller SP, Rogers EE, Grunau RE, Synnes AR, Xu D, Foong J, Brant R, Innis SM. Early postnatal docosahexaenoic acid levels and improved preterm brain development. Pediatr Res 2016; 79:723-30. [PMID: 26761122 PMCID: PMC4853254 DOI: 10.1038/pr.2016.11] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 11/12/2015] [Indexed: 11/18/2022]
Abstract
BACKGROUND Preterm birth has a dramatic impact on polyunsaturated fatty acid exposures for the developing brain. This study examined the association between postnatal fatty acid levels and measures of brain injury and development, as well as outcomes. METHODS A cohort of 60 preterm newborns (24-32 wk gestational age) was assessed using early and near-term magnetic resonance imaging (MRI) studies. Red blood cell fatty acid composition was analyzed coordinated with each scan. Outcome at a mean of 33 mo corrected age was assessed using the Bayley Scales of Infant Development, 3rd edition. RESULTS Adjusting for confounders, a 1% increase in postnatal docosahexaenoic acid (DHA) levels at early MRI was associated with 4.3-fold decreased odds of intraventricular hemorrhage, but was not associated with white matter injury or cerebellar haemorrhage. Higher DHA and lower linoleic acid (LA) levels at early MRI were associated with lower diffusivity in white matter tracts and corresponding improved developmental scores in follow-up. CONCLUSION Higher DHA and lower LA levels in the first few weeks of life are associated with decreased intraventricular haemorrhage, improved microstructural brain development, and improved outcomes in preterm born children. Early and possibly antenatal interventions in high-risk pregnancies need to be studied for potential benefits in preterm developmental outcomes.
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Affiliation(s)
- Emily W.Y. Tam
- Department of Pediatrics, Hospital for Sick Children and University of Toronto, ON, Canada
| | - Vann Chau
- Department of Pediatrics, Hospital for Sick Children and University of Toronto, ON, Canada
| | - A. James Barkovich
- Department of Neurology, University of California San Francisco, San Francisco, CA, USA,Department of Pediatrics, University of California San Francisco,Department of Radiology & Diagnostic Imaging, University of California San Francisco
| | - Donna M. Ferriero
- Department of Neurology, University of California San Francisco, San Francisco, CA, USA,Department of Pediatrics, University of California San Francisco
| | - Steven P. Miller
- Department of Pediatrics, Hospital for Sick Children and University of Toronto, ON, Canada,Department of Pediatrics, University of British Columbia
| | | | - Ruth E. Grunau
- Department of Pediatrics, University of British Columbia
| | - Anne R. Synnes
- Department of Pediatrics, University of British Columbia
| | - Duan Xu
- Department of Radiology & Diagnostic Imaging, University of California San Francisco
| | - Justin Foong
- Department of Pediatrics, Hospital for Sick Children and University of Toronto, ON, Canada,Centre for Computational Medicine, Hospital for Sick Children
| | - Rollin Brant
- Department of Statistics, University of British Columbia, Vancouver, BC, Canada
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50
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Norman WV, Samiedaluie S, Brant R, Kaczorowski J, Bryan S. Subsequent pregnancies after abortion by contraception method. Contraception 2016. [DOI: 10.1016/j.contraception.2016.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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