Biomedical subjects

Marie-Josée Bédard

Publications and source records attributed to Marie-Josée Bédard.

4 recordsLinked to original sources

PubMed2006

Postpartum uterine wound dehiscence: a case report.

INTRODUCTION: Late postpartum hemorrhage following a Caesarean section (CS) is uncommon. A partial or complete dehiscence of the lower segment CS incision is a rare but possible cause. CASE: A 33-year-old woman underwent a lower segment CS for chorioamnionitis and failure to progress in labour at 40 weeks and 5 days of gestation. On the 43rd postpartum day, she developed heavy vaginal bleeding. Emergency laparotomy revealed a complete dehiscence of the lower uterine segment incision. A subtotal hysterectomy was performed to control the bleeding, and the postoperative course was uneventful. CONCLUSION: Dehiscence of a lower uterine segment incision is a rare but potentially dangerous cause of late postpartum hemorrhage.

Adult↗

PubMed2006

Factors influencing the decision to practise obstetrics among Québec medical students: a survey.

OBJECTIVE: The objectives of this study were to track changes in medical students' interest in obstetrics from the beginning of their studies in medicine to the end of their pre-clinical clerkships and to identify factors that influenced this interest. METHODS: This was a cohort study of all Québec medical students who, in 2003, were about to begin their clerkships (n = 500). A questionnaire was administered at this time (T1) and at the end of the clerkship (T2). The main outcome variables were an intention to provide prenatal care without deliveries and an intention to deliver infants in future practice. Logistic regression analysis was used to assess relationships between the various determinants and the decision to practise obstetrics. RESULTS: A total of 353 students, or 70.6% of the cohort, completed both questionnaires. At the end of their clerkships, 32 students (9.1%) were definitely planning to include complete obstetrical care in their future practices, and 45 (12.7%) said that they probably would. Between the beginning and the end of their clerkships, only 8% of students had changed their minds in favour of an obstetrical career, and 20% had decided against it. An intention to deliver infants is associated with the following factors: considering the practice of obstetrics gratifying (odds ratio [OR] 6.73; 95% confidence intervals [CI] 3.30-13.70); having been exposed to obstetrical care outside the clerkship in obstetrics and gynaecology (OR 4.4; 95% CI 1.6-10.26); having completed university studies before studying medicine (OR 4.08; 95% CI 1.11-15.3); and having had a decisive, positive experience with obstetrics (OR 2.86; 95% CI 0.96-8.50). Students who believed that specialists had played a key role in their decision and that obstetrics is a demanding practice were less likely to plan a career that included delivering infants (OR 0.43; 95% CI 0.23-0.69 and OR 0.35; 95% CI 0.21-0.59, respectively). CONCLUSION: This study shows that an interest in practising obstetrics emerges very early in medical training. However, a student's learning experiences during an obstetrical rotation affect this decision. Departments of family medicine and obstetrics and gynaecology may be able to work together to create more positive role models.

Adult↗

PubMed2005

The effect of old age on supra-span learning of visuo-spatial sequences under incidental and intentional encoding instructions.

Recent findings [Turcotte, Gagnon, & Poirier, 2005. The effect of old age on the learning of supra-span sequences. Psychology and Aging, 20, 251-260.] indicate that incidental learning of visuo-spatial supra-span sequences through immediate serial recall declines with old age (Hebb's paradigm). In this study, we examined whether strategies induced by awareness of the repeated sequence might explain age differences. Young (18-35 years old) and older (65-80 years old) participants underwent either incidental or intentional learning instructions. Results indicated that older adults demonstrated reduced learning of the repeated sequence under both incidental and intentional instructions. In comparison, young adults showed superior learning of the repeated sequence in both conditions but intentional instructions triggered faster and greater learning in this age group. The results strongly indicated that knowledge of the repeated sequence enhanced learning only in the group of young adults. Older adults were unable to translate the knowledge of the repetition into elaborate strategies that would increase recall of the repeated sequence. Other findings suggest that incidental learning in young adults was mediated by both non-conscious and conscious recollection processes.

Adolescent↗

PubMed2003

Sublingual nitroglycerine as a tocolytic in external cephalic version: a comparative study.

OBJECTIVE: To study the effect of sublingual nitroglycerine as a tocolytic on the success rate of external cephalic version (ECV) in nulliparous and parous women. METHODS: A retrospective case-controlled study of all ECV cases from February 1996 to February 2000 in a single centre. The rates of successful ECV were compared between women who had their ECV before February 1998 (control group), those who had their ECV after February 1998 and received 0.8 mg sublingual nitroglycerine spray as a tocolytic agent, and those who had their ECV after February 1998 and received no tocolytic agents. Nulliparous and parous women were studied separately. Data were collected for parity, gestational age, maternal age, placental localization, and side effects. Chi-square and Kruskal-Wallis tests were performed for statistical comparison. RESULTS: Of 150 women who had their ECV after February 1998, 120 (80%) received sublingual nitroglycerine (group 1: cases using 0.8 mg sublingual nitroglycerine spray as a tocolytic agent) and were compared to the 30 patients who did not receive sublingual nitroglycerine or other tocolytics after February 1998 (group 2) and to 137 patients who had their ECV before February 1998 (control group). Of the women who received sublingual nitroglycerine, 5 (4%) had hypotension and 7 (6%) had headaches and/or nausea. The rate of successful ECV was 27% in group 1 versus 30% in group 2 (p = 0.86) versus 28% in the control group (p = 0.88) for nulliparous patients, and 67% versus 80% (p = 0.30) versus 51% (p = 0.09) respectively for parous women. However, the success rate was increased overall in parous women after the introduction of nitroglycerine as a tocolytic for ECV in February 1998 (71% vs. 51%, p = 0.02). CONCLUSION: Although the success rate of ECV has increased in recent years, the use of sublingual nitroglycerine as a tocolytic was not associated with this higher success rate. A randomized, controlled trial is needed.

Administration, Sublingual↗