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1.
Can J Anaesth ; 2024 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-39112772

RESUMO

PURPOSE: Initially introduced as a safer alternative to smoking, electronic cigarettes (e-cigarettes) and vaping have since been associated with lung injury. Nevertheless, there is limited perioperative data on their potential contribution to the harmful effects of mechanical ventilation on the lungs. We hypothesized that, in adults undergoing noncardiothoracic surgeries, preoperative vaping/e-cigarette use is associated with hypoxemia during the first postoperative hour, and with an increased incidence of intraoperative and postoperative pulmonary complications. METHODS: We conducted a retrospective cohort study in which we included patients reporting as vapers/e-cigarette users within one year before surgery as the exposure group, and nonvapers as the control group. The primary outcome was the time-weighted average (TWA) SpO2/FIO2 ratio in the postanesthesia care unit during the first postoperative hour. The secondary outcome was a composite of intraoperative and postoperative pulmonary complications until discharge. We used entropy balancing to adjust for confounding, and fit weighted linear regression and logistic regression models to estimate treatment effects. RESULTS: A total of 110,940 patients met the inclusion criteria, and 1,941 of these were vapers/e-cigarette users. The average treatment effect on the treated for TWA SpO2/FIO2 ratio (N = 109,217) was estimated to be a mean difference of 4 (95% confidence interval [CI], 1 to 8; P = 0.007). This is equivalent to a 4% change in SpO2 at a 30% FIO2 (or at a fixed FIO2). The difference was statistically significant. The average treatment effect on the treated for experiencing intraoperative and postoperative pulmonary complications (N = 110,940) was an odds ratio of 1.04 (95% CI, 0.71 to 1.54; P = 0.84). CONCLUSION: Vaping/e-cigarette use was neither associated with clinically significant hypoxemia during the first hour in the postanesthesia care unit nor with an increase in pulmonary complications. Nevertheless, our findings cannot definitively exclude the deleterious effects of vaping and e-cigarette use on the lungs, and anesthesiologists should consider potential perioperative complications.


RéSUMé: OBJECTIF: Initialement introduites comme une alternative plus sécuritaire au tabagisme, les cigarettes électroniques et le vapotage ont depuis été associés à des lésions pulmonaires. Néanmoins, il existe peu de données périopératoires concernant leur contribution potentielle aux effets nocifs de la ventilation mécanique sur les poumons. Nous avons émis l'hypothèse que, chez les adultes bénéficiant de chirurgies non cardiothoraciques, l'utilisation préopératoire de vapotage/de cigarette électronique était associée à une hypoxémie au cours de la première heure postopératoire et à une incidence accrue de complications pulmonaires peropératoires et postopératoires. MéTHODE: Nous avons mené une étude de cohorte rétrospective dans laquelle nous avons inclus les patient·es déclarant avoir vapoté ou utilisé des cigarettes électroniques dans l'année précédant la chirurgie comme groupe d'exposition, et les personnes ne vapotant pas comme groupe témoin. Le critère d'évaluation principal était le rapport de SpO2/FIO2 moyen pondéré dans le temps en salle de réveil pendant la première heure postopératoire. Le critère d'évaluation secondaire était un mélange de complications pulmonaires peropératoires et postopératoires jusqu'au congé de l'hôpital. Nous avons utilisé l'équilibrage d'entropie pour ajuster les facteurs de confusion et ajusté les modèles de régression linéaire pondérée et de régression logistique pour estimer les effets du traitement. RéSULTATS: Au total, 110 940 patient·es répondaient aux critères d'inclusion, dont 1941 étaient des vapoteurs ou vapoteuses/utilisaient des cigarettes électroniques. L'effet moyen du traitement sur le rapport de SpO2/FIO2 moyen pondéré dans le temps des personnes traitées (N = 109 217) a été estimé à une différence moyenne de 4 (intervalle de confiance [IC] à 95 %, 1 à 8; P = 0,007). Cela équivaut à une variation de 4 % de la SpO2 à 30% FIO2 (ou à une FIO2 fixe). La différence était statistiquement significative. L'effet moyen du traitement sur les personnes traitées pour des complications pulmonaires peropératoires et postopératoires (N = 110 940) était un rapport de cotes de 1,04 (IC 95 %, 0,71 à 1,54; P = 0,84). CONCLUSION: L'utilisation du vapotage et de la cigarette électronique n'était associée ni à une hypoxémie cliniquement significative au cours de la première heure en salle de réveil, ni à une augmentation des complications pulmonaires. Néanmoins, nos résultats ne peuvent exclure de manière définitive les effets délétères du vapotage et de l'utilisation de la cigarette électronique sur les poumons, et les anesthésiologistes devraient tenir compte des complications périopératoires potentielles.

2.
MedEdPORTAL ; 19: 11308, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37143850

RESUMO

Introduction: Values clarification is a structured, reflective process individuals engage in to better understand their own beliefs and priorities. We designed a workshop on values clarification to help preclerkship medical students anticipate and manage potential conflicts between their personal values and professional expectations. Methods: We assigned participating students a values clarification exercise as prework. The 2-hour workshop included introductory remarks, a presentation by two physicians on personal ethical challenges they had faced, and faculty-facilitated small groups. In the small groups, students discussed moral discomfort in the context of various health care scenarios. Students were invited to complete an optional postworkshop survey with Likert-scale and short-answer questions. We analyzed the qualitative data and formulated 10 emerging themes. Results: Thirty-eight of 180 participating students (21%) returned the survey. Of these, 30 (79%) agreed the workshop helped them appreciate that their values might come into conflict with professional obligations, 26 (68%) agreed they would be able to apply what they learned to future scenarios, and 30 (79%) agreed the workshop helped them understand their colleagues' values. The most prominent themes identified were that students found the physician panel especially meaningful and that the workshop helped students examine their own values and prepared them to better understand their future patients' values. Discussion: Our workshop is unique in that it does not focus on a single area in health care but addresses moral discomfort broadly. To the best of our knowledge, it is the first values clarification curricular initiative developed for preclerkship medical students.


Assuntos
Médicos , Estudantes de Medicina , Humanos , Aprendizagem , Atenção à Saúde , Inquéritos e Questionários
3.
Cell Stem Cell ; 23(1): 21-24, 2018 07 05.
Artigo em Inglês | MEDLINE | ID: mdl-29887317

RESUMO

The genetic complexity, clinical variability, and inaccessibility of affected tissue in neurodegenerative and neuropsychiatric disorders have largely prevented the development of effective disease-modifying therapeutics. A precision medicine approach that integrates genomics, deep clinical phenotyping, and patient stem cell models may facilitate identification of underlying biological drivers and targeted drug development.


Assuntos
Transtornos Mentais/terapia , Doenças do Sistema Nervoso/terapia , Medicina de Precisão , Transplante de Células-Tronco , Células-Tronco/citologia , Humanos , Transtornos Mentais/genética , Transtornos Mentais/patologia , Doenças do Sistema Nervoso/genética , Doenças do Sistema Nervoso/patologia
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