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Dive into the research topics where Melanie Ornstein is active.

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Featured researches published by Melanie Ornstein.


The Lancet | 2000

Fall in mean arterial pressure and fetal growth restriction in pregnancy hypertension: a meta-analysis

P. von Dadelszen; Melanie Ornstein; Sb Bull; Alexander G. Logan; Gideon Koren; Laura A. Magee

BACKGROUND We investigated the relation between fetoplacental growth and the use of oral antihypertensive medication to treat mild-to-moderate pregnancy hypertension. METHODS The study design was a metaregression analysis of published data from randomised controlled trials. Data from a paper that was regarded as an extreme statistical outliner were excluded from primary analyses. The change in (group) mean arterial pressure (MAP) from enrolment to delivery was compared with indicators of fetoplacental growth. FINDINGS Greater mean difference in MAP with antihypertensive therapy was associated with the birth of a higher proportion of small-for-gestational-age (SGA) infants (slope: 0.09 [SD 0.03], r2=0.48, p=0.006, 14 trials) and lower mean birthweight significant after exclusion of data from another paper regarded as an extreme statistical outliner (slope: -14.49 [6.98] r=0.16, p=0.049, 27). No relation with mean placental weight was seen (slope -2.01 [1.62], r2=0.15, p=0.25, 11 trials). INTERPRETATION Treatment-induced falls in maternal blood pressure may adversely affect fetal growth. Given the small maternal benefits that are likely to be derived from therapy, new data are urgently needed to elucidate the relative maternal and fetal benefits and risks of oral antihypertensive drug treatment of mild-to-moderate pregnancy hypertension.


BMJ | 1999

Fortnightly review: Management of hypertension in pregnancy

Laura A. Magee; Melanie Ornstein; P. von Dadelszen

Hypertension in pregnancy is not a single entity1 but comprises: ### Summary points Antihypertensive treatment is well tolerated in pregnancy, with few women needing to change drugs due to side effects Antihypertensive treatment for mild chronic hypertension benefits the mother, but the impact on perinatal outcomes is less clear, particularly for atenolol For hypertension presenting later in pregnancy, even near term, the available data do not allow for reliable conclusions to be made about the benefits and risks of restricted activity with or without admission to hospital Antihypertensive treatment for mild to moderate hypertension later in pregnancy benefits the mother, but the impact on perinatal outcomes may be harmful or beneficial Women with early, severe pre-eclampsia have better perinatal outcomes if they are managed “expectantly,” but data are insufficient to estimate risks to the mother For acute severe hypertension later in pregnancy, parenteral hydralazine is not the drug of choice as it is associated with more maternal and perinatal adverse effects than are other drugs, particularly intravenous labetalol or oral or sublingual nifedipine Antihypertensive treatment given antenatally should probably be reordered postnatally The types of hypertension in pregnancy differ primarily in the incidence, and not the nature, of maternal and perinatal complications. The UK confidential inquiries into maternal …


Journal of obstetrics and gynaecology Canada | 2009

Pediatric vulvovaginal disorders: a diagnostic approach and review of the literature.

Nancy Van Eyk; Lisa Allen; Ellen Giesbrecht; Mary Anne Jamieson; Sari Kives; Margaret Morris; Melanie Ornstein; Nathalie Fleming

Vulvovaginal complaints in the prepubertal child are a common reason for referral to the health care provider. The Cochrane Library and Medline databases were searched for articles published in English from 1980 to December 2004 relating to vulvovaginal conditions in girls. The following search terms were used: vulvovaginitis, prepubertal, pediatric, lichen sclerosis, labial fusion, labial adhesion, genital ulcers, urethral prolapse, psoriasis, and straddle injuries. The objectives of this article are to review the normal vulvovaginal anatomy, describe how to perform an age-appropriate examination, and discuss common vulvovaginal disorders and their management in young girls.


Journal of Adolescent Health | 2013

Trends in menstrual concerns and suppression in adolescents with developmental disabilities.

Yolanda A. Kirkham; Lisa Allen; Sari Kives; Nicolette Caccia; Rachel F. Spitzer; Melanie Ornstein

PURPOSE Demonstrate changes in methods of menstrual suppression in adolescents with developmental disabilities in a recent 5-year cohort compared with an historical cohort at the same hospital. METHODS Retrospective cohort study of patients with physical and cognitive challenges presenting for menstrual concerns at an Adolescent Gynecology Clinic between 2006 and 2011 compared with a previous published cohort (1998 to 2003). RESULTS Three hundred patients with developmental disabilities aged 7.3 to 18.5 years (mean 12.1 ± 1.6) were analyzed. Caregiver concerns included menstrual suppression, hygiene, caregiver burden, and menstrual symptoms. Ninety-five percent of patients had cognitive disabilities, 4.4% had only physical impairments. Thirty-two (31.7) percent of patients presented premenarchally. The most commonly selected initial method of suppression was extended or continuous oral contraceptive pill (OCP) (42.3%) followed by patch (20%), expectant management (14.9%), depot medroxyprogesterone acetate (DMPA) (11.6%), and levonorgestrel intrauterine system (LNG-IUS) (2.8%). Published data from 1998 to 2003 indicated a preference for DMPA in 59% and OCP in 17% of patients. The average number of methods to reach caregiver satisfaction was 1.5. Sixty-five percent of initial methods were continued. The most common reasons for discontinuation were breakthrough bleeding, decreased bone mineral density, or difficulties with patch adherence. Second-choice selections included OCP (42.5%), LNG-IUS inserted under general anesthesia (19.2%), DMPA (17.8%), and patch (13.7%). CONCLUSIONS Since identification of decreased bone mineral density with DMPA and emergence of new contraceptive options, use of extended OCP or patch has surpassed DMPA for menstrual suppression in our patient population. LNG-IUS is an accepted, successful second-line option in adolescents with developmental disabilities.


Pediatric Emergency Care | 2008

Retrospective Review of Unintentional Female Genital Trauma at a Pediatric Referral Center

Rachel F. Spitzer; Sari Kives; Nicolette Caccia; Melanie Ornstein; Cristina Goia; Lisa Allen

Unintentional female genital trauma is a complaint commonly seen and managed through the emergency department. The purpose of this study was to review all unintentional female genital trauma evaluated at The Hospital for Sick Children for 3.5 years to determine the factors associated with gynecologic consultation and need for operative repair. Methods: One hundred five patients were identified by health record coding. Data were extracted to study factors associated with gynecologic consultation and operative repair. Statistical analyses were performed to evaluate the significance of these associations. Surgical choices were also evaluated. Results: Mean age was 5.60 years. Mean time to presentation was 7.05 hours. Straddle injury was the most common mechanism (81.90%), and only 4.76% injuries were penetrating. Of the 105 patients, 48.57% consulted the gynecology section, 19.05% were taken to the operating room, and 6.66% were treated under conscious sedation. Overall, 20.95% required surgical repair. The most common complication was dysuria. Six patients had other injuries, the most common of which were pelvic fractures related to trauma. Factors significantly associated with gynecologic consultation and operative management included older age, transfer to our institution, shorter time to presentation, laceration-type injury, hymenal injury, and larger size of injury. Straddle injuries were significantly less likely to be taken to the operating room. When cases were stratified by a surgeon, there were no significant differences in management. Conclusions: Unintentional female pediatric genital traumas most commonly result from straddle injuries. Most injuries are minor, and in this cohort, only 48.57% received gynecologic consultation and 19.05% required operative management. Future prospective studies would be useful to better evaluate the efficacy of surgical choices.


Hypertension in Pregnancy | 2004

A Survey of Canadian Practitioners Regarding the Management of the Hypertensive Disorders of Pregnancy

M. Caetano; Melanie Ornstein; P. von Dadelszen; Mary E. Hannah; A. G. Logan; Andrée Gruslin; Andrew R. Willan; Laura A. Magee

Background: How Canadian practitioners are managing the hypertensive disorders of pregnancy (HDP) is not known, particularly in relation to the 1997 guidelines published by the Canadian Hypertension Society (CHS). Methods: A survey, with French and English versions (and covering diagnosis, evaluation, and management of pregnancy hypertension), was mailed to all members of the Society of Obstetricians and Gynaecologists of Canada (SOGC) (N = 1757, including obstetricians, family doctors practicing obstetrics, and midwives). Additionally, internists [i.e., all nephrologists (N = 191) and a random sample of 25% of general internists (N = 450)] registered with the Royal College of Physicians and Surgeons of Canada were sampled. The survey was distributed in two mailings and one reminder card. Data were entered into Microsoft Access, and Graph Pad Prism used to summarize responses [N (%)]. Differences in practice between specialties were examined, with a Bonferroni correction used to calculate a significant p value based on the number of comparisons and alpha of 0.05. Results: Respondents numbered 1187 (49.5%), with 466 not informative for the purpose of the study (due to retirement, or practices that do not include pregnant women with hypertension). The final analysis included 721 completed surveys. For all types of HDP, most internists, family doctors, and midwives initiate nonpharmacological therapy (most common advice to quit work) at dBP 80–89 mmHg (i.e., primary prevention). Only for preeclampsia do obstetricians most frequently use this threshold; otherwise, dBP 90–99 mmHg is usually chosen. For nonsevere hypertension, antihypertensive drug therapy (most commonly methyldopa or labetalol) is started by most practitioners at dBP 90–99 mmHg, although obstetricians are more likely to choose a higher threshold (p < 0.0001). There is little agreement about dBP treatment goal; most internists and family doctors normalize dBP, whereas obstetricians appear to be divided on dBP goals of 80–89 (46–51%) vs. 90–99 mmHg (41–44%) for all HDP (p = 0.66). Severe hypertension is commonly treated with parenteral hydralazine, labetalol, or magnesium sulphate. Short‐acting or sustained release nifedipine is used rarely/never by most practitioners. Approximately one‐third of obstetricians and family doctors use diazepam to treat eclampsia. The vast majority use MgSO4 prophylactically in women with preeclampsia. Interpretation: This survey has clarified current stated management of women with HDP, and identified the need for both research into the dBP treatment goal that optimizes pregnancy outcomes among women with HDP, and translation of definitive studies into clinical practice.


Hypertension in Pregnancy | 2004

A Survey of Canadian Practitioners Regarding Diagnosis and Evaluation of the Hypertensive Disorders of Pregnancy

M. Caetano; Melanie Ornstein; Mary E. Hannah; A. G. Logan; Andrée Gruslin; Andrew R. Willan; Laura A. Magee

Background: How Canadian practitioners are diagnosing and managing the hypertensive disorders of pregnancy (HDP), particularly in relation to the 1997 recommendations published by the Canadian Hypertension Society (CHS), is not known. Methods: A survey, with French and English versions (and covering diagnosis, evaluation, and management of pregnancy hypertension), was mailed to all members of the Society of Obstetricians and Gynaecologists of Canada (SOGC) (N = 1757, including obstetricians, family doctors practicing obstetrics, and midwives). Additionally, internists [i.e., all nephrologists (N = 191) and a random sample of 25% of general internists (N = 450)] registered with the Royal College of Physicians and Surgeons of Canada were sampled. The survey was distributed in two mailings and one reminder card. Data were entered into Microsoft Access, and Graph Pad Prism used to summarize responses [N (%)]. Differences in practice between specialties were examined, with a Bonferonni correction used to calculate a significant p value based on the number of comparisons and alpha of 0.05. Results: Respondents numbered 1187 (49.5%), with 466 not informative for the purpose of the study (due to retirement, or practices that do not include pregnant women with hypertension). The final analysis included 721 completed surveys. Most (609, 84.5% of) respondents take blood pressure (BP) with women in the sitting position, and use a mercury sphygmomanometer (79%) and the 5th Korotkoff (61%) sound to designate diastolic BP (dBP). To monitor pregnancies complicated by preeclampsia, most clinicians use the proposed laboratory tests of maternal well‐being (usually at least once/week), fetal well‐being [nonstress test (NST, at least once/week), and ultrasonographic studies (once weekly to every two weeks)]. There is general agreement that women with preeclampsia should be delivered for uncontrolled hypertension, end‐organ dysfunction, or fetal compromise (nonreassuring NST, severe oligohydramnios, biophysical profile < 4, estimated fetal weight < 5th centile, and reversed end‐diastolic flow by umbilical artery Doppler velocimetry). Less consensus was seen for delivery for preeclampsia at > 34 weeks, mild asymptomatic HELLP syndrome, hyperreflexia, and absent end‐diastolic flow by umbilical artery Doppler velocimetry. Interpretation: This survey has clarified the current state of practice with respect to the diagnosis and evaluation of women with all types of HDP. In particular, we have identified areas of potential variability in BP measurement, and provided data on the feasibility of enrolling women with sub types of preeclampsia into intervention studies aimed at prolonging pregnancy.


Journal of Pediatric and Adolescent Gynecology | 2009

Menstrual suppression for adolescents with developmental disabilities.

Ingrid Savasi; Rachel F. Spitzer; Lisa Allen; Melanie Ornstein

The approach to menstrual suppression for adolescents with developmental disabilities has evolved considerably over the years due to changing philosophies and evolving treatment options. We review the medical management options available for menstrual suppression with a focus on the needs and treatment of adolescents with developmental disabilities.


Pediatric Emergency Care | 2007

Vaginal laceration from a high-pressure water jet in a prepubescent girl.

Judith Lacy; Erin Brennand; Melanie Ornstein; Lisa Allen

Objective: To document an unusual case of water douche injury in a prepubescent girl. Design: Case report. Results: After sitting atop a high-pressure water jet in a public fountain, a 9-year-old girl experienced pain and vaginal bleeding. She sustained a laceration high in her vaginal vault with an estimated total blood loss of 750 mL. Examination and vaginal packing were done under general anesthesia resulting in cessation of bleeding. Conclusions: High-pressure water douche is recognized as producing serious vaginal injury in adult women but is not well reported as a cause of genital trauma in the pediatric population. Although not well documented, the prepubescent vagina is capable of receiving significant trauma due to highly pressurized water. Initial trauma management should be implemented with subsequent repair of the laceration, if possible. The prepubescent genital anatomy must be taken into account during examination and postoperative care.


Current Opinion in Obstetrics & Gynecology | 2016

Review of gynecologic and reproductive care for women with developmental disabilities.

Dara Abells; Yolanda A. Kirkham; Melanie Ornstein

Purpose of review Care for women with developmental disabilities requires special consideration for unique needs related to their cognitive and physical abilities. These women and their caregivers require more support and guidance during reproductive health care. We review the literature and provide expert opinion surrounding gynecological issues for women with developmental disabilities to support healthcare providers better understand and care for this population. Recent findings Women with developmental disabilities are more vulnerable to abuse and experience poorer gynecological healthcare outcomes. Many women with developmental disabilities are fertile and participate in sexual activity without adequate knowledge. They are at higher risk of pregnancy and birth complications. They are less likely to receive appropriate preventive screening. Summary The review highlights important issues and practice suggestions related to the reproductive health care of women with developmental disabilities. Topics include clinic visits, menstruation, sexuality, sexual abuse, sexual health education, contraception, sexually transmitted infections, pregnancy, labor and delivery, and cancer screening/prevention. We emphasize the need for an individualized, comprehensive approach for these patients and review perceived and actual barriers to care. More education is needed on the aforementioned topics for women with developmental disabilities, their caregivers, and their providers.

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Erin Barlow

University of Massachusetts Medical School

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