48 results on '"LeClair, C."'
Search Results
2. An isolated fever associated with selective serotonin reuptake inhibitors therapy
- Author
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Benhamou, Y., Leclair, C., Cailleux, N., Chauffrey, I., and Levesque, H.
- Published
- 2009
- Full Text
- View/download PDF
3. Studies on the resting behaviour and host choice of Anopheles gambiae and An. arabiensis from Muleba, Tanzania
- Author
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Charlwood, JD, Kessy, E, Yohannes, K, Protopopoff, N, Rowland, M, and LeClair, C
- Subjects
parasitic diseases - Abstract
The relative efficacy of a mechanical (Prokopack) collection method vs. manual aspiration in the collection of resting mosquitoes was evaluated in northern Tanzania before and after an intervention using indoor residual spraying and longlasting insecticide-treated nets. In smoke-free houses mosquitoes were collected from the roof and walls, but in smoky houses mosquitoes were found predominantly on the walls. Anopheles gambiae (Diptera: Culicidae) constituted 97.7% of the 312 An. gambiae complex specimens identified before but only 19.3% of the 183 identified after the intervention. A single sampling with the Prokopack collected a third of the available insects. Anopheles gambiae completed its gonotrophic development indoors, whereas Anopheles arabiensis did so outdoors. In both species gonotrophic development took 2 days. Most unfed resting An. arabiensis collected outdoors were virgins, whereas the majority of engorged insects were parous (with well-contracted sacs). Daily survival was estimated to be 80.0%. Only 9.4% of the engorged An. arabiensis collected outdoors and 47.1% of those collected indoors had fed on humans. Using the Prokopack sampler is more efficient than manual methods for the collection of resting mosquitoes. Malaria transmission may have been affected by a change in vector composition resulting from a change in feeding, rather than reduced survival. Monitoring the proportions of members of the An. gambiae complex may provide signals of an impending breakdown in control.
- Published
- 2018
4. 068 Mindfulness-Based Group Cognitive Behavior Therapy for Women with Provoked Localized Vulvodynia: A Randomized Controlled Trial
- Author
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Guillet, A., primary, Cirino, N., additional, Polan-Orzech, C., additional, and Leclair, C., additional
- Published
- 2018
- Full Text
- View/download PDF
5. Studies on the resting behaviour and host choice ofAnopheles gambiaeandAn. arabiensisfrom Muleba, Tanzania
- Author
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Charlwood, J. D., primary, Kessy, E., additional, Yohannes, K., additional, Protopopoff, N., additional, Rowland, M., additional, and LeClair, C., additional
- Published
- 2018
- Full Text
- View/download PDF
6. A qualitative exploration of fear of cancer recurrence (FCR) amongst Australian and Canadian breast cancer survivors
- Author
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Thewes, B., primary, Lebel, S., additional, Seguin Leclair, C., additional, and Butow, P., additional
- Published
- 2015
- Full Text
- View/download PDF
7. Diagnostic de la maladie veineuse thromboembolique idiopathique : intéret du scanner thoraco-abdomino-pelvien
- Author
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Benhamou, Y., primary, Leclair, C., additional, Armengol, G., additional, Cailleux, N., additional, and Levesque, H., additional
- Published
- 2010
- Full Text
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8. Prophylactic misoprostol prior to IUD insertion in nulliparous women
- Author
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Schaefer, E., primary, Van Houten, L., additional, Olson, A., additional, Leclair, C., additional, Bednarek, P.H., additional, and Edelman, A., additional
- Published
- 2010
- Full Text
- View/download PDF
9. Multicentre prospective validation of use of the Canadian C-Spine Rule by triage nurses in the emergency department
- Author
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Stiell, I. G., primary, Clement, C. M., additional, O'Connor, A., additional, Davies, B., additional, Leclair, C., additional, Sheehan, P., additional, Clavet, T., additional, Beland, C., additional, MacKenzie, T., additional, and Wells, G. A., additional
- Published
- 2010
- Full Text
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10. Potential of ozonation for the degradation of antibiotics in wastewater
- Author
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Yargeau, V., primary and Leclair, C., primary
- Published
- 2007
- Full Text
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11. Perceived Barriers and Facilitators to the Implementation of the Canadian C-Spine Rule by Emergency Department Nurses
- Author
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Clement, C., primary, Stiell, I., additional, Danseco, E., additional, Davies, B., additional, O'Connor, A., additional, Brehaut, J., additional, Leclair, C., additional, and Marcantonio, R., additional
- Published
- 2007
- Full Text
- View/download PDF
12. Can ED Triage Nurses Reliably Clear the C-Spine in Minor Trauma?
- Author
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Stiell, I., primary, Clement, C., additional, O'Connor, A., additional, Davies, B., additional, Leclair, C., additional, Mackenzie, T., additional, Beland, C., additional, Peck, T., additional, Sheehan, P., additional, Gee, A., additional, and Perry, J., additional
- Published
- 2007
- Full Text
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13. Four percent intrauterine lidocaine infusion for pain management in first-trimester abortions
- Author
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Edelman, A, primary, Nichols, M, additional, Leclair, C, additional, and Jensen, JT, additional
- Published
- 2005
- Full Text
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14. Evaluation of bleeding risk in patients exposed to therapeutic unfractionated or low-molecular-weight heparin: a cohort study in the context of a quality improvement initiative.
- Author
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Cossette B, Pelletier ME, Carrier N, Turgeon M, Leclair C, Charron P, Echenberg D, Fayad T, and Farand P
- Published
- 2010
- Full Text
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15. Four percent intrauterine lidocaine infusion for pain management in first-trimester abortions.
- Author
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Edelman A, Nichols MD, Leclair C, and Jensen JT
- Published
- 2006
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16. Intrauterine lidocaine infusion for pain management in first-trimester abortions.
- Author
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Edelman A, Nichols MD, Leclair C, Astley S, Shy K, and Jensen JT
- Published
- 2004
- Full Text
- View/download PDF
17. Effects of prophylactic misoprostol administration prior to intrauterine device insertion in nulliparous women.
- Author
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Edelman AB, Schaefer E, Olson A, Van Houten L, Bednarek P, Leclair C, and Jensen JT
- Published
- 2011
18. Sensory quality of Citrus scion hybrids with Poncirus trifoliata in their pedigrees.
- Author
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Deterre SC, Jeffries KA, McCollum G, Stover E, Leclair C, Manthey JA, Bai J, Baldwin EA, Raithore S, and Plotto A
- Subjects
- Plant Breeding, Taste, Citrus genetics, Citrus chemistry, Poncirus genetics, Citrus sinensis chemistry
- Abstract
Hybrids of Poncirus trifoliata L. Raf. with Citrus have shown degrees of tolerance to the deadly citrus greening disease, hence prompting interest as potential commercial varieties. Although P. trifoliata is known to produce fruit that is inedible, fruit from many advanced hybrid trees have not been evaluated for their quality potential. The sensory quality of selected Citrus hybrids with varying degrees of P. trifoliata in their pedigrees is reported herein. Four Citrus × P. trifoliata hybrids developed through the USDA Citrus scion breeding program-1-76-100, 1-77-105, 5-18-24, and 5-18-31-had acceptable eating quality and sweet and sour taste, with mandarin, orange, fruity-noncitrus, and floral flavors. On the other hand, hybrids with higher proportion of P. trifoliata in their pedigrees, US 119 and 6-23-20, produced a juice characterized by green, cooked, bitter, and Poncirus-like flavor and aftertaste. Partial least square regressions revealed that the Poncirus-like off-flavor is likely due to a combination of higher than typical amounts of sesquiterpene hydrocarbons (woody/green odor), monoterpenes (citrus/pine), and terpene esters (floral) and a lack of aldehydes with typical citrus odor (octanal, nonanal, and decanal). Sweetness and sourness were mostly explained by high sugars and acids, respectively. Further, carvones and linalool contributed to sweetness in the samples from early and late seasons, respectively. In addition to highlighting chemical contributors to sensory descriptors in Citrus × P. trifoliata hybrids, this study provides useful information on sensory quality for future citrus breeding efforts. PRACTICAL APPLICATION: The relationships between the sensory quality and secondary metabolites of Citrus × P. trifoliata hybrids described in this study help identify disease-resistant Citrus scion hybrids with acceptable flavor and help mobilize this resistance in future breeding efforts. It also shows potential of such hybrids to be commercialized., (Published 2023. This article is a U.S. Government work and is in the public domain in the USA.)
- Published
- 2023
- Full Text
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19. Long-lasting insecticidal nets provide protection against malaria for only a single year in Burundi, an African highland setting with marked malaria seasonality.
- Author
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Van Bortel W, Mariën J, Jacobs BKM, Sinzinkayo D, Sinarinzi P, Lampaert E, D'hondt R, Mafuko JM, De Weggheleire A, Vogt F, Alexander N, Wint W, Maes P, Vanlerberghe V, and Leclair C
- Subjects
- Humans, Burundi epidemiology, Time Factors, Insecticides, Malaria epidemiology, Malaria prevention & control, Health Information Systems
- Abstract
Background: Long-lasting insecticidal nets (LLINs) are one of the key interventions in the global fight against malaria. Since 2014, mass distribution campaigns of LLINs aim for universal access by all citizens of Burundi. In this context, we assess the impact of LLINs mass distribution campaigns on malaria incidence, focusing on the endemic highland health districts. We also explored the possible correlation between observed trends in malaria incidence with any variations in climate conditions., Methods: Malaria cases for 2011-2019 were obtained from the National Health Information System. We developed a generalised additive model based on a time series of routinely collected data with malaria incidence as the response variable and timing of LLIN distribution as an explanatory variable to investigate the duration and magnitude of the LLIN effect on malaria incidence. We added a seasonal and continuous-time component as further explanatory variables, and health district as a random effect to account for random natural variation in malaria cases between districts., Results: Malaria transmission in Burundian highlands was clearly seasonal and increased non-linearly over the study period. Further, a fast and steep decline of malaria incidence was noted during the first year after mass LLIN distribution (p<0.0001). In years 2 and 3 after distribution, malaria cases started to rise again to levels higher than before the control intervention., Conclusion: This study highlights that LLINs did reduce the incidence in the first year after a mass distribution campaign, but in the context of Burundi, LLINs lost their impact after only 1 year., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2022
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20. Common Causes of Vaginitis.
- Author
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Leclair C and Stenson A
- Subjects
- Candidiasis, Vulvovaginal complications, Causality, Female, Humans, Vaginitis diagnosis, Vaginitis etiology
- Published
- 2022
- Full Text
- View/download PDF
21. Novel sampling methods for monitoring Anopheles arabiensis from Eritrea.
- Author
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Charlwood JD, Andegiorgish AK, Asfaha YE, Tekle Weldu L, Petros F, Legese L, Afewerki R, Mihreteab S, LeClair C, and Kampango A
- Abstract
Background: Studies comparing novel collection methods for host seeking and resting mosquitoes A. arabiensis were undertaken in a village in Eritrea. Techniques included an odor baited trap, a novel tent-trap, human landing collection and three methods of resting collection. A technique for the collection of mosquitoes exiting vegetation is also described. Pre-gravid rates were determined by dissection of host seeking insects and post-prandial egg development among insects collected resting., Results: Overall 5,382 host-seeking, 2,296 resting and 357 A. arabiensis exiting vegetation were collected. The Furvela tent-trap was the most efficient, risk-free method for the collection of outdoor host-seeking insects, whilst the Suna trap was the least effective method. Mechanical aspirators (the CDC backpack or the Prokopack aspirator) were superior to manual aspiration in a dark shelter but there was no advantage over manual aspiration in a well-lit one. An estimated two-thirds of newly-emerged mosquitoes went through a pre-gravid phase, feeding twice before producing eggs. Mosquitoes completed gonotrophic development in a dark shelter but left a well-lit shelter soon after feeding. One blood-fed female marked in the village was recaptured 2 days after release exiting vegetation close to the oviposition site and another, shortly after oviposition, attempting to feed on a human host 3 days after release. Exit rates of males from vegetation peaked 3 min after the initial male had left. Unfed and gravid females exited approximately 6 min after the first males., Conclusions: Furvela tent-traps are suitable for the collection of outdoor biting A. arabiensis in Eritrea whilst the Prokopack sampler is the method of choice for the collection of resting insects. Constructing well-lit, rather than dark, animal shelters, may encourage otherwise endophilic mosquitoes to leave and so reduce their survival and hence their vectorial capacity., Competing Interests: The authors declare that they have no competing interests., (© 2021 Charlwood et al.)
- Published
- 2021
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22. Can Physical Activity and Healthy Diet Help Long-Term Cancer Survivors Manage Their Fear of Recurrence?
- Author
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Séguin Leclair C, Lebel S, and Westmaas JL
- Abstract
Objective : Fear of cancer recurrence (FCR) adversely affects quality of life, but health behaviors such as physical activity (PA) and fruit and vegetable intake (FVI) may help alleviate FCR for some survivors. This cross-sectional study tested the common-sense model (CSM) of FCR by investigating associations between constructs from the CSM (perceived illness consequences, control over health, and timeline), and survivors' health behaviors, health self-efficacy, and FCR. Methods : Using wave 3 data from the American Cancer Society Longitudinal Study of Cancer Survivorship-I, path analyses were conducted among mixed-cancer participants ( N = 2,337) who were on average 8.8 mean years post-diagnosis. Results : A final good fitting model [ χ
2 (5, N = 2,337) = 38.12, p < 0.001; SRMR = 0.02; CFI = 0.99; RMSEA = 0.05] indicated that perceiving fewer illness consequences, and greater control over one's health, were directly associated with higher PA ( β = 0.15 and -0.24, p < 0.01, respectively) and higher health self-efficacy ( β = 0.24, -0.38, p < 0.01, respectively). Timeline (i.e., perceiving cancer as chronic) was directly associated with lower health self-efficacy ( β = -0.15, p < 0.01) and higher FCR ( β = 0.51, p < 0.01). Both greater PA and FVI were directly associated with higher health self-efficacy ( β = 0.10 and 0.11, p < 0.01, respectively) which in turn showed a direct association with lower FCR ( β = -0.15, p < 0.01). Conclusion : Increasing survivors' sense of control over health, decreasing perceived chronicity of the illness, and mitigating its consequences may increase their health behaviors and health self-efficacy, which in turn could decrease their FCR. Longitudinal and experimental studies are needed to confirm these findings., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Séguin Leclair, Lebel and Westmaas.)- Published
- 2021
- Full Text
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23. Adult Vulvar Lichen Sclerosus: Can Experts Agree on the Assessment of Disease Severity?
- Author
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Sheinis M, Green N, Vieira-Baptista P, Carriero C, Fischer G, Leclair C, Madnani N, Moyal-Barracco M, and Selk A
- Subjects
- Adult, Child, Preschool, Consensus, Female, Humans, Middle Aged, Pain etiology, Pruritus etiology, Societies, Medical, Vulvar Lichen Sclerosus therapy, Gynecology standards, Severity of Illness Index, Vulvar Lichen Sclerosus diagnosis
- Abstract
Objective: The objective of this study was to test the severity rating of the signs and architectural changes for interrater reliability among world experts via analysis of lichen sclerosus (LS) photographs., Methods: A recent Delphi consensus exercise established a list of symptoms, signs, and architectural changes, which experts feel are important to include in a severity scale. Photographs of vulvar LS were manually extracted from patient charts and 50 photographs with a range of severity of signs and architectural changes were chosen. Lichen sclerosus experts were invited to take part in the study and 3 dermatologists and 3 gynecologists were selected for their expertise and geographic variety. Raters assessed the photographs for multiple signs and architectural changes as well as an overall impression of disease severity on a 4-point Likert scale. Intraclass correlation coefficients were calculated., Results: The intraclass correlation coefficients were very poor for individual signs and architectural changes as well as for overall disease severity when analyzed for all 6 raters as well as when analyzed with dermatologists' and gynecologists' responses grouped separately. There were no statistically significant correlations found., Conclusions: Global experts were unable to agree on any signs, architectural changes, or an overall global impression to assess vulvar LS disease severity based on analysis of vulvar photographs. Standardized descriptions regarding what constitutes mild, moderate, and severe signs and anatomical changes are required before further scale development can occur.
- Published
- 2020
- Full Text
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24. Effect of fruit maturity on volatiles and sensory descriptors of four mandarin hybrids.
- Author
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Hijaz F, Gmitter FG Jr, Bai J, Baldwin E, Biotteau A, Leclair C, McCollum TG, and Plotto A
- Subjects
- Aldehydes chemistry, Aldehydes isolation & purification, Breeding, Citrus chemistry, Citrus classification, Citrus growth & development, Consumer Behavior, Esters chemistry, Esters isolation & purification, Flavoring Agents isolation & purification, Fruit chemistry, Fruit classification, Fruit genetics, Gas Chromatography-Mass Spectrometry, Humans, Monoterpenes chemistry, Monoterpenes isolation & purification, Solid Phase Microextraction, Taste, Volatile Organic Compounds analysis, Volatile Organic Compounds isolation & purification, Citrus genetics, Flavoring Agents chemistry, Fruit growth & development
- Abstract
Mandarins (or tangerines) are mainly consumed as fresh fruits due to the ease of peeling and desirable flavor. Sweetness, acidity, and flavor of mandarin are the most important criteria for consumer preference. The objective of this study was to evaluate the effects of harvest date on sensory and chemical components of four mandarin cultivars (Murcott, 411, Temple, and 'LB8-9' Sugar Belle®). Volatiles were extracted from the headspace of juice samples with solid phase microextraction (SPME) and analyzed using gas chromatography-mass spectrometry (GC-MS). The optimum harvest window for eating quality of 411 was late January to mid-February (soluble solids content [SSC]/titratable acidity [TA]: 11.3 to 14.0), Sugar Belle® fruits were best tasted when harvested from mid- to end of January (SSC/TA: 14.1 to 16.1), and February was the best month for harvesting Murcott (SSC/TA: 13.10 to 18.0) and Temple (SSC/TA:10.3 to 12.50). Sensory perception of sweetness, ripeness, and juiciness increased as SSC/TA increased while sourness and bitterness decreased. Pumpkin flavor, an indicator of overripe fruit, was mainly noticed late in the season. Tangerine flavor tended to decrease, whereas fruity-noncitrus flavor tended to increase with fruit maturity. Monoterpenes were the most abundant volatiles and tended to decrease with fruit maturity, whereas alcohols, esters, and aldehydes increase. Aldehydes, esters, and alcohols were positively correlated with sweetness, ripeness, juiciness, and fruity characteristics, and negatively with sourness and bitterness. On the other hand, monoterpenes were positively correlated with bitterness and tangerine flavor, and negatively correlated with sweetness and fruity-noncitrus flavor. The highest number of esters was found in Temple, whereas Murcott and 411 were high in aldehydes., (© 2020 Institute of Food Technologists®.)
- Published
- 2020
- Full Text
- View/download PDF
25. Prescription Opioid Prescribing in Western Europe and the United States.
- Author
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Meyer A, LeClair C, and McDonald JV
- Subjects
- Acute Pain drug therapy, Analgesics, Opioid poisoning, Cross-Cultural Comparison, Drug Overdose epidemiology, Europe epidemiology, Humans, Oxycodone poisoning, Pain Management methods, Rhode Island epidemiology, Analgesics, Opioid therapeutic use, Chronic Pain drug therapy, Drug Overdose mortality, Drug Prescriptions statistics & numerical data, Opioid-Related Disorders epidemiology, Oxycodone administration & dosage, Practice Patterns, Physicians' statistics & numerical data
- Abstract
Pain is universal, yet the prevalence of overdose and treatment of pain varies significantly between the United States (US) and Western Europe. Overdose deaths are seven times more common in the US compared to Western Europe. Cultural perceptions of pain, perception and treatment of opioid use disorder, pharmaceutical advertising, and rates and regulation of prescribing of opioids represent examples of factors that may be related to such differences between the US and Western Europe. As Rhode Island continues to battle the devastating and well-documented national opioid overdose epidemic, we should consider how cultural, regulatory differences, and economic factors may influence pain and its treatment.
- Published
- 2020
26. Smoking versus quitting and fear of cancer recurrence 9 years after diagnosis in the American Cancer Society's Longitudinal Study of Cancer Survivors-I (SCS-I).
- Author
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Westmaas JL, Thewes B, Séguin Leclair C, and Lebel S
- Subjects
- American Cancer Society, Cancer Survivors statistics & numerical data, Fear, Female, Humans, Longitudinal Studies, Male, Middle Aged, Recurrence, Smoking psychology, Time Factors, United States, Cancer Survivors psychology, Neoplasms epidemiology, Smoking Cessation psychology
- Abstract
Background: Fear of cancer recurrence (FCR) adversely affects quality of life. Cigarette smoking increases the risk of recurrence and may exacerbate FCR among survivors who smoke. FCR also may motivate quitting, but research on whether quitting reduces long-term survivors' FCR is lacking. Among long-term survivors of various cancers, the authors investigated relationships between quitting (vs smoking) and FCR, controlling for sociodemographic, cancer-related, and health-related variables., Methods: Data from the American Cancer Society's Longitudinal Study of Cancer Survivors-I were used in generalized estimating equations to compare FCR at 3 waves (T1-T3) after diagnosis between 2 groups; survivors who reported current smoking (n = 196) approximately 9 years after diagnosis (at T3) or who, based on T3 recall of quitting age, had quit smoking after diagnosis (n = 97). T3 cross-sectional analyses among current smokers examined associations of FCR with smoking level and intentions of quitting., Results: A significant smoking status × time interaction (P = .003) indicated that only quitters experienced decreases in FCR from T1 to T3 (P = .007). At T3, FCR was significantly lower among quitters than among current smokers (P = .05), and current smokers reported that FCR caused more functioning impairments (eg, disruption of relationships, everyday activities, mood) than quitters (P = .001). Cross-sectional analyses (T3) among smokers found that heavier smoking predicted less attempts to cope with FCR (P = .04) and that reassurance behaviors (eg, self-examination for cancer) predicted stronger quitting intentions (P = .02)., Conclusions: Quitting smoking lowers FCR, and FCR may disrupt functioning among continuing smokers. Interventions for FCR should be multimodal and should treat both psychological distress and health-related behaviors such as smoking., (© 2019 American Cancer Society.)
- Published
- 2019
- Full Text
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27. The Clinical Utility of the Vulvar Pain Assessment Questionnaire: A Pilot Study.
- Author
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Dargie E, Pukall CF, Goetsch M, Stenson A, and Leclair C
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Female, Humans, Middle Aged, Oregon, Pilot Projects, Young Adult, Chronic Pain diagnosis, Pain Measurement, Surveys and Questionnaires, Vulvar Diseases diagnosis
- Abstract
Objective: The aim of the study was to document treatment-seeking experiences of women with chronic vulvar pain, comfort communicating about pain, and test the clinical utility of the screening version of the Vulvar Pain Assessment Questionnaire, screening version (VPAQscreen)., Materials and Methods: Patients scheduled for an appointment with the Program in Vulvar Health at Oregon Health and Science University were invited to complete the VPAQscreen and answer descriptive questions about previous treatment-seeking experiences and communication with health care providers. Clinicians provided provisional diagnoses based on VPAQscreen summaries, final diagnoses based on gynecological examination, and commented on alignment with clinical observations. Patients gave feedback on the accuracy and helpfulness of the VPAQscreen summary, characteristics of the questions asked, and whether their comfort communicating increased., Results: Participants reported previously seeing approximately 5 medical doctors and 2 other health care providers and perceived them as lacking knowledge of vulvar pain syndromes. Providers indicated that VPAQscreen summaries aligned with clinical presentations and suggested provisional diagnoses with more than 80% accuracy. Participants reported that VPAQscreen summaries were helpful and accurate in summarizing symptoms. Most reported that the number, range, and readability of VPAQscreen questions were good or excellent. More than half reported that completing the VPAQscreen increased comfort when speaking with their Oregon Health and Science University physician., Conclusions: Patients with vulvar pain often endure a lengthy process of consulting multiple clinicians before securing care. The VPAQscreen was more than 80% accurate in predicting diagnosis at this specialty clinic and was useful in assisting patients with expressing symptoms. The applicability of the VPAQscreen in general practice is unknown, although it shows promise.
- Published
- 2019
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28. The relationship between fear of cancer recurrence and health behaviors: A nationwide longitudinal study of cancer survivors.
- Author
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Séguin Leclair C, Lebel S, and Westmaas JL
- Subjects
- Adult, Aged, Exercise physiology, Exercise psychology, Female, Fruit, Humans, Longitudinal Studies, Male, Middle Aged, Neoplasm Recurrence, Local epidemiology, Neoplasm Staging psychology, Neoplasm Staging trends, Prevalence, Prospective Studies, Surveys and Questionnaires, United States epidemiology, Vegetables, Cancer Survivors psychology, Fear psychology, Health Behavior, Neoplasm Recurrence, Local prevention & control, Neoplasm Recurrence, Local psychology
- Abstract
Objective: The goal of this study was to examine fear of cancer recurrence (FCR) and 2 health behaviors, physical activity and fruit and vegetable intake, from early to long-term survivorship in a large cohort of mixed cancer survivors., Method: Group-based trajectory analyses and repeated measures analysis of variance were conducted on data collected in the American Cancer Society's Studies of Cancer Survivorship-I. Two thousand three hundred thirty-seven survivors of 10 cancers completed the survey at 3 time points (M = 1.3, 2.2, and 8.8 years postdiagnosis)., Results: The current study found 3 FCR trajectories clustering cancer survivors by FCR severity: low (33.6%), moderate (58.1%), and high (8.3%). FCR significantly decreased over time and remained distinct for each trajectory group. Patient characteristics prevalent in the high FCR group were being female, of younger age, Hispanic ethnicity, having advanced cancer stage (II to III) and non-Hodgkin lymphoma, and low adherence to physical activity and fruit and vegetable intake recommendations. The high FCR group also reported significantly fewer of these health behaviors compared with the other groups, albeit the effect size was small., Conclusions: Across the survivorship trajectory, FCR severity decreased but remained distinct for the 3 trajectory groups. Future investigations should inquire about the specific needs of each FCR group to subsequently develop targeted interventions. A weak association between FCR and health behaviors was found, with individuals in the high FCR group reporting less health behaviors. Future research should assess the direction of this relationship over time to inform intervention targets within this subgroup. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
- Published
- 2019
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29. To Shave or Not to Shave? A Series of Periclitoral Masses Associated With Depilatory Techniques and a Review of the Literature.
- Author
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Stenson AL and Leclair C
- Subjects
- Adolescent, Adult, Female, Humans, Middle Aged, Young Adult, Dermatitis, Contact diagnosis, Dermatitis, Contact pathology, Folliculitis diagnosis, Folliculitis pathology, Hair Removal adverse effects, Skin pathology, Vulva pathology
- Abstract
Periclitoral masses are uncommon disorders in gynecology often leading to pain and distress. With the popularity of female genital hair grooming and depilation, the vulva has been exposed to new insults including contact dermatitis and folliculitis. The unique anatomy of the protective covering of the clitoral hood may subject hair fragments to trapping, inflammation, irritation, and in some cases abscess formation.
- Published
- 2018
- Full Text
- View/download PDF
30. Studies on the resting behaviour and host choice of Anopheles gambiae and An. arabiensis from Muleba, Tanzania.
- Author
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Charlwood JD, Kessy E, Yohannes K, Protopopoff N, Rowland M, and LeClair C
- Subjects
- Age Distribution, Animals, Feeding Behavior, Rest, Tanzania, Anopheles physiology, Insecticide-Treated Bednets statistics & numerical data, Insecticides administration & dosage, Specimen Handling methods
- Abstract
The relative efficacy of a mechanical (Prokopack) collection method vs. manual aspiration in the collection of resting mosquitoes was evaluated in northern Tanzania before and after an intervention using indoor residual spraying and longlasting insecticide-treated nets. In smoke-free houses mosquitoes were collected from the roof and walls, but in smoky houses mosquitoes were found predominantly on the walls. Anopheles gambiae (Diptera: Culicidae) constituted 97.7% of the 312 An. gambiae complex specimens identified before but only 19.3% of the 183 identified after the intervention. A single sampling with the Prokopack collected a third of the available insects. Anopheles gambiae completed its gonotrophic development indoors, whereas Anopheles arabiensis did so outdoors. In both species gonotrophic development took 2 days. Most unfed resting An. arabiensis collected outdoors were virgins, whereas the majority of engorged insects were parous (with well-contracted sacs). Daily survival was estimated to be 80.0%. Only 9.4% of the engorged An. arabiensis collected outdoors and 47.1% of those collected indoors had fed on humans. Using the Prokopack sampler is more efficient than manual methods for the collection of resting mosquitoes. Malaria transmission may have been affected by a change in vector composition resulting from a change in feeding, rather than reduced survival. Monitoring the proportions of members of the An. gambiae complex may provide signals of an impending breakdown in control., (© 2018 The Royal Entomological Society.)
- Published
- 2018
- Full Text
- View/download PDF
31. 'We like it wet': a comparison between dissection techniques for the assessment of parity in Anopheles arabiensis and determination of sac stage in mosquitoes alive or dead on collection.
- Author
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Charlwood JD, Tomás EVE, Andegiorgish AK, Mihreteab S, and LeClair C
- Abstract
Background: The determination of parous rates in mosquitoes, despite numerous shortcomings, remains a tool to evaluate the effectiveness of control programs and to determine vectorial capacity in malaria vectors. Two dissection techniques are used for this. For one, the tracheoles of dried ovaries are examined with a compound microscope and in the other the follicular stalk of ovaries is examined, wet, with a stereomicroscope. The second method also enables the sac stage of parous insects (which provides information on the duration of the oviposition cycle) and the mated status of insects to be determined. Despite widespread use the two techniques have not previously been compared., Methods: We compared the two dissection techniques using Anopheles arabiensis , collected with a tent-trap in Eritrea. The paired ovaries were removed in water and one was examined by each method. From a separate set of dissections from Tanzania, we also determined if the sac stages of Anopheles gambiae s.l. (83% of 183 identified by PCR being Anopheles arabiensis the remainder being A. gambiae ) that were alive on collection were different to those that died on collection and what the implications for vectorial capacity estimation might be., Results: Seven per cent of the dry ovaries could not be classified due to granulation (yolk) in the ovariole that obscured the tracheoles. The sensitivity of the dry dissection was 88.51% (CI [79.88-94.35%]) and the specificity was 93.55% (CI [87.68-97.17%]) among the 211 ovaries that could be classified by the dry technique and compared to the ovaries dissected wet. 1,823 live and 1,416 dead from Furvela tent-traps, CDC light-trap and window-trap collections were dissected 'wet' from Tanzania. In these collections parous insects were more likely to die compared to nulliparous ones. The proportion of parous mosquitoes with 'a' sacs (indicative of recent oviposition) was significantly greater in insects that were dead (0.36) on collection in the morning compared to those that were alive (0.12) (Chi square 138.93, p < 0.001). There was a preponderance of newly emerged virgin insects in the outdoor collection (Chi sq = 8.84, p = 0.003)., Conclusions: In anophelines the examination of mosquito ovaries using transmitted light in a 'wet' dissection is a more useful and informative technique than examination of dry ovaries. In order to correctly estimate the duration of the oviposition cycle mosquitoes should be dissected as soon as possible after collection. Younger insects were more likely to attempt to feed outdoors rather than indoors., Competing Interests: The authors declare there are no competing interests.
- Published
- 2018
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32. 'Repel all biters': an enhanced collection of endophilic Anopheles gambiae and Anopheles arabiensis in CDC light-traps, from the Kagera Region of Tanzania, in the presence of a combination mosquito net impregnated with piperonyl butoxide and permethrin.
- Author
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LeClair C, Cronery J, Kessy E, Tomás EVE, Kulwa Y, Mosha FW, Rowland M, Protopopoff N, and Derek Charlwood J
- Subjects
- Animals, Housing, Mosquito Control instrumentation, Tanzania, Anopheles drug effects, Insect Repellents pharmacology, Insecticide-Treated Bednets, Insecticides pharmacology, Mosquito Control methods, Permethrin pharmacology, Piperonyl Butoxide pharmacology
- Abstract
Background: Mosquito nets containing synergists designed to overcome metabolic resistance mechanisms in vectors have been developed. These may enhance excitability in the mosquitoes and affect how they respond to CDC light-traps. Investigating the behaviour of vectors of disease in relation to novel mosquito nets is, therefore, essential for the design of sampling and surveillance systems., Methods: In an initial experiment in Muleba, Tanzania, nine bedrooms from three housing clusters were sampled. CDC light-traps were operated indoors next to occupied untreated nets (UTN), Olyset
® long lasting insecticidal net (LLIN) and Olyset Plus® LLIN containing piperonyl butoxide (PBO) synergist. Nets were rotated daily between the nine rooms over nine nights. A further series of experiments using the nets on alternate nights in a single room was undertaken during the short rains. Anopheles gambiae s.l. were collected in CDC light-traps, a window-trap and Furvela tent-trap. Anopheles gambiae s.l. were identified to species by polymerase chain reaction (PCR)., Results: In the initial experiment 97.7% of the 310 An. gambiae s.l. were An. gambiae s.s., the remainder being Anopheles arabiensis. The number of mosquitoes collected from 81 light-trap collections was greater in the presence of an Olyset [density rate ratio 1.81, 95% CI (1.22-2.67), p = 0.003] relative to an UTN. In a second experiment, in the wet season 84% of the 180 An. gambiae s.l. identified were An. arabiensis. The number of An. gambiae s.l. collected from a light-trap compared to a tent-trap was significantly higher when an Olyset Plus net was used compared to an UTN. Survival of the mosquitoes in the window trap was not reduced by the use of an Olyset Plus net in the bedroom relative to an Olyset net., Conclusion: Mosquitoes entering bedrooms, even those susceptible to pyrethroids, were not killed by contact with an Olyset Plus LLIN. The enhanced numbers of An. gambiae or An. arabiensis collected in light-traps when a treated net is used requires further experimentation and may be because of a heightened escape reaction on the part of the mosquito.- Published
- 2017
- Full Text
- View/download PDF
33. Statewide Assessment of Cost-Related Healthcare Access Barriers in Rhode Island.
- Author
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Moore B, Long T, Dexter M, Powell S, LeClair C, and Alexander-Scott N
- Subjects
- Cross-Sectional Studies, Health Care Surveys, Humans, Rhode Island, Deductibles and Coinsurance statistics & numerical data, Health Expenditures statistics & numerical data, Health Services Accessibility economics, Patient Protection and Affordable Care Act economics, Preventive Medicine economics
- Abstract
Although co-payments and deductibles are means of keeping health expenditures low, they have also been cited as barriers that inhibit patients from accessing necessary healthcare. We aimed to evaluate Rhode Island residents' experiences with cost-related access challenges within the state's healthcare system. We conducted a cross-sectional survey of resident experiences with healthcare in Rhode Island. Our survey instrument was composed of the RAND Corporation "Short-Form Patient Satisfaction Questionnaire (PSQ-18)", questions developed by the Rhode Island Office of the Health Insurance Commissioner, and ranking of health priorities based on prior community assessments conducted by the Rhode Island Department of Health. Data were collected at venues across the state as part of the Rhode Island Department of Health 2015 Statewide Health Inventory. From July to August 2015, 404 surveys were completed. We found that 40% of respondents had a co-pay of $20-$50, while 35.7% of respondents had a deductible of greater than $500. Further, one-third of respondents delayed receiving care due to financial barriers. This decision resulted in a worsening condition or hospital visit for nearly half of those respondents. Co-pays and deductibles pose challenges to Rhode Islanders accessing health care. Cost-related barriers to healthcare access should continue to be addressed, especially in the context of preventive care services, which are now being built into health insurance premiums through the Patient Protection and Affordable Care Act. [Full article available at http://rimed.org/rimedicaljournal-2016-11.asp].
- Published
- 2016
34. When fear of cancer recurrence becomes a clinical issue: a qualitative analysis of features associated with clinical fear of cancer recurrence.
- Author
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Mutsaers B, Jones G, Rutkowski N, Tomei C, Séguin Leclair C, Petricone-Westwood D, Simard S, and Lebel S
- Subjects
- Adaptation, Psychological, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Anxiety psychology, Fear psychology, Neoplasm Recurrence, Local psychology, Neoplasms psychology, Survivors psychology
- Abstract
Purpose: Fear of cancer recurrence (FCR) is a common experience for cancer survivors. However, it remains unclear what characteristics differentiate non-clinical from clinical levels of FCR. The goal of this study was to investigate the potential hallmarks of clinical FCR., Methods: A convenience sample of 40 participants (n = 19 female) was drawn from another study (Lebel et al. in Qual Life Res 25:311-321. doi: 10.1007/s11136-015-1088-2 , 2016). The semi-structured interview for fear of cancer recurrence (Simard and Savard in J Cancer Surviv 9:481-491. doi: 10.1007/s11764-015-0424-4 , 2015) was used to identify participants with non-clinical and clinical FCR and qualitative analysis of these interviews was performed., Results: Individuals with clinical FCR reported the following features: death-related thoughts, feeling alone, belief that the cancer would return, experiencing intolerance of uncertainty, having cancer-related thoughts and imagery that were difficult to control, daily and recurrent, lasted 30 minutes or more, increased over time, caused distress and impacted their daily life. Triggers of FCR and coping strategies did not appear to be features of clinical FCR as they were reported by participants with a range of FCR scores., Conclusions: While features of clinical FCR found in this analysis such as intrusive thoughts, distress and impact on functioning confirmed previous FCR research, other features spontaneously emerged from the interviews including "death-related thoughts," "feeling alone," and "belief that the cancer will return." The participants' descriptions of cancer-specific fear and worry suggest that FCR is a distinct phenomenon related to cancer survivorship, despite similarities with psychological disorders (e.g., Anxiety Disorders). Future research investigating the construct of FCR, and the distinguishing features of clinical FCR across a range of cancer types and gender is required.
- Published
- 2016
- Full Text
- View/download PDF
35. Development of delayed bitterness and effect of harvest date in stored juice from two complex citrus hybrids.
- Author
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Raithore S, Dea S, McCollum G, Manthey JA, Bai J, Leclair C, Hijaz F, Narciso JA, Baldwin EA, and Plotto A
- Subjects
- Benzoxepins, Citrus chemistry, Limonins, Time Factors, Citrus genetics, Food Storage, Fruit and Vegetable Juices analysis, Taste
- Abstract
Background: Mandarins and mandarin hybrids have excellent flavor and color attributes, making them good candidates for consumption as fresh fruit. When processed into juice, however, they are less palatable, as they develop delayed bitterness when stored for a period of time. In this study the kinetics of delayed bitterness in two citrus mandarin hybrid siblings, 'Ambersweet' and USDA 1-105-106, was explored by sensory and instrumental analyses. In addition to the bitter limonoids, other quality factors (i.e. sugars, acids, pH, soluble solids content (SSC), titratable acidity (TA) and the ratio SSC/TA) were also measured., Results: The two citrus hybrid siblings had different chemical profiles, which were perceived by taste panels. USDA 1-105-106 developed delayed bitterness when the juice was stored for more than 4 h, similar to juice from 'Navel' oranges, but 'Ambersweet' did not. Bitterness in 'Ambersweet' was more affected by harvest maturity, as juice from earlier harvest had lower SSC but higher TA and bitter limonoids., Conclusion: Since juice of USDA 1-105-106 shows delayed bitterness when stored for more than 4 h, this cultivar is not suitable for juice processing. Our finding that siblings can differ in chemical and sensory properties emphasize the importance of post-processing storage studies before releasing cultivars for juice., (Published 2015. This article is a U.S. Government work and is in the public domain in the USA.)
- Published
- 2016
- Full Text
- View/download PDF
36. Low-grade fibromyxoid sarcoma of the vulva: a case report.
- Author
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VanSandt AM, Bronson J, Leclair C, Mansoor A, and Goetsch M
- Subjects
- Adult, Female, Fibroma epidemiology, Fibroma surgery, Histocytochemistry, Humans, Microscopy, Vulva pathology, Vulvar Neoplasms epidemiology, Vulvar Neoplasms surgery, Fibroma diagnosis, Fibroma pathology, Vulvar Neoplasms diagnosis, Vulvar Neoplasms pathology
- Abstract
Objective: The study aimed to describe a case of low-grade fibromyxoid sarcoma arising from the vulva and to discuss the diagnostic challenges, clinical management, and epidemiology of this rare malignancy., Case: A 36-year-old woman presented to 3 separate emergency departments with complaints of a painful and slowly enlarging vulvar mass. Eventual gynecologic referral resulted in excision of a 6-cm, noncystic vulvar mass. Pathological diagnosis revealed low-grade fibromyxoid sarcoma. Later, a right radical hemivulvectomy ensured adequate margins, and 2 years later, the patient is free of recurrent and metastatic disease., Conclusions: Low-grade fibromyxoid sarcoma is a rare malignancy that may present in the lower genital tract. Definitive diagnosis is essential because low-grade fibromyxoid sarcoma may metastasize many years after diagnosis, thereby requiring indefinite clinical surveillance.
- Published
- 2013
- Full Text
- View/download PDF
37. Perceived facilitators and barriers to clinical clearance of the cervical spine by emergency department nurses: A major step towards changing practice in the emergency department.
- Author
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Clement CM, Stiell IG, Davies B, O'Connor A, Brehaut JC, Sheehan P, Clavet T, Leclair C, MacKenzie T, and Beland C
- Subjects
- Algorithms, Attitude of Health Personnel, Diffusion of Innovation, Emergency Nursing education, Emergency Service, Hospital organization & administration, Female, Guideline Adherence organization & administration, Humans, Male, Nurse's Role, Nursing Assessment methods, Nursing Methodology Research, Ontario, Practice Guidelines as Topic standards, Professional Autonomy, Prospective Studies, Qualitative Research, Triage methods, Validation Studies as Topic, Workload, Cervical Vertebrae injuries, Decision Trees, Emergency Nursing organization & administration, Nursing Staff, Hospital organization & administration, Nursing Staff, Hospital psychology, Practice Patterns, Nurses' organization & administration, Spinal Injuries diagnosis
- Abstract
Objectives: We conducted a validation study on use of the Canadian C-Spine Rule (CCR) by emergency department (ED) nurses to clear the c-spine in alert and stable trauma patients (N=3633). This survey sought to identify potential facilitators and barriers to an implementation policy that would allow nurses to clinically clear the c-spine of minor trauma patients., Methods: We conducted a prospective quantitative survey of ED nurses in six hospitals. Questions were developed from a previous qualitative survey at the same validation study EDs., Results: 158 ED nurses were surveyed and 137 (86.7%) responded. Nurses strongly endorsed potential facilitators for nursing clearance of the c-spine, including 'Like to try new things at work' (96.4%) and 'Easy for me to take on new responsibilities' (96.4%). Most respondents were comfortable applying the rule (89.1%). Nurses endorsed potential barriers but at much lower rates, with the most common being 'Heavy workload makes it difficult to use the rule' (37.2%). Variation existed among hospitals for the facilitator 'Use of the rule would be useful to my practice', ranging from 81.8% to 100% endorsement (P=0.004)., Conclusions: This survey was an important step towards the goal of empowering ED nurses to clinically clear the c-spine of alert and stable trauma patients. There was a high rate of endorsement of facilitators and a low rate of endorsement of barriers. We found variation between hospitals, emphasizing the importance of understanding local beliefs when seeking to change clinical practice. We are conducting an implementation trial based on this feedback., (Copyright © 2009 Elsevier Ltd. All rights reserved.)
- Published
- 2011
- Full Text
- View/download PDF
38. Multicentre prospective validation of use of the Canadian C-Spine Rule by triage nurses in the emergency department.
- Author
-
Stiell IG, Clement CM, O'Connor A, Davies B, Leclair C, Sheehan P, Clavet T, Beland C, MacKenzie T, and Wells GA
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Canada, Emergency Service, Hospital, Female, Humans, Male, Middle Aged, Radiography, Reproducibility of Results, Workforce, Young Adult, Cervical Vertebrae diagnostic imaging, Nursing Staff, Hospital, Spinal Injuries diagnostic imaging, Triage
- Abstract
Objectives: The Canadian C-Spine Rule for imaging of the cervical spine was developed for use by physicians. We believe that nurses in the emergency department could use this rule to clinically clear the cervical spine. We prospectively evaluated the accuracy, reliability and acceptability of the Canadian C-Spine Rule when used by nurses., Methods: We conducted this three-year prospective cohort study in six Canadian emergency departments. The study involved adult trauma patients who were alert and whose condition was stable. We provided two hours of training to 191 triage nurses. The nurses then assessed patients using the Canadian C-Spine Rule, including determination of neck tenderness and range of motion, reapplied immobilization and completed a data form., Results: Of the 3633 study patients, 42 (1.2%) had clinically important injuries of the cervical spine. The kappa value for interobserver assessments of 498 patients with the Canadian C-Spine Rule was 0.78. We calculated sensitivity of 100.0% (95% confidence interval [CI] 91.0%-100.0%) and specificity of 43.4% (95% CI 42.0%-45.0%) for the Canadian C-Spine Rule as interpreted by the investigators. The nurses classified patients with a sensitivity of 90.2% (95% CI 76.0%-95.0%) and a specificity of 43.9% (95% CI 42.0%-46.0%). Early in the study, nurses failed to identify four cases of injury, despite the presence of clear high-risk factors. None of these patients suffered sequelae, and after retraining there were no further missed cases. We estimated that for 40.7% of patients, the cervical spine could be cleared clinically by nurses. Nurses reported discomfort in applying the Canadian C-Spine Rule in only 4.8% of cases., Conclusion: Use of the Canadian C-Spine Rule by nurses was accurate, reliable and clinically acceptable. Widespread implementation by nurses throughout Canada and elsewhere would diminish patient discomfort and improve patient flow in overcrowded emergency departments.
- Published
- 2010
- Full Text
- View/download PDF
39. Severe preservation injury induces Il-6/STAT3 activation with lack of cell cycle progression after partial liver graft transplantation.
- Author
-
Debonera F, Wang G, Xie J, Que X, Gelman A, Leclair C, Xin D, Shaked A, and Olthoff KM
- Subjects
- Animals, Cyclin D1 analysis, Graft Survival immunology, Graft Survival physiology, Hepatocytes cytology, Immunohistochemistry, Interleukin-6 genetics, Liver Transplantation immunology, Liver Transplantation methods, Male, Organ Preservation, RNA genetics, RNA isolation & purification, Rats, Rats, Inbred Lew, Reverse Transcriptase Polymerase Chain Reaction, STAT3 Transcription Factor, Cell Cycle physiology, DNA-Binding Proteins genetics, Liver Transplantation physiology, Trans-Activators genetics
- Abstract
Partial liver graft transplantation is a surgical advance developed to overcome severe donor shortage. Survival of these grafts involves recovery from cold ischemia and reperfusion (CIR) injury, immediate regeneration and maintenance of function. Here we examined the outcome of partial liver grafts in comparison to whole grafts following CIR injury. Lewis rats subjected to orthotopic liver transplantation (OLT) with whole grafts preserved in Viaspan were compared to rats receiving 50% and 30% grafts. Outcome was analyzed by survival and regeneration. Transplantation was associated with 100% survival for all grafts, whereas 16 h preservation resulted in 100%, 20% and 0% survival in animals receiving whole, 50% and 30% grafts, respectively. CIR induced increased IL-6 levels in 50% and 30% grafts, and activation of STAT3. Cell cycle progression (cyclin D1) and regeneration (BrdU) was initiated in all livers preserved for 1 or 8 h, but not in partial grafts preserved for 16 h. In conclusion, partial grafts recover from CIR injury through similar molecular pathways to whole grafts. Partial grafts with severe injury fail to achieve cellular proliferation despite the early initiating signals. This failure could be attributed to the impaired ability of the parenchyma to respond to initiating signals for regeneration.
- Published
- 2004
- Full Text
- View/download PDF
40. Generation of a mouse expressing a conditional knockout of the hepatocyte growth factor gene: demonstration of impaired liver regeneration.
- Author
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Phaneuf D, Moscioni AD, LeClair C, Raper SE, and Wilson JM
- Subjects
- Animals, Cells, Cultured, DNA biosynthesis, Female, Gene Targeting, Mice, Mice, Knockout, Mice, Transgenic, Polymerase Chain Reaction, Sequence Deletion, Transfection, Hepatocyte Growth Factor genetics, Liver Regeneration genetics
- Abstract
Hepatocyte growth/scatter factor (HGF/SF) is a pleiotropic cytokine originally identified as a potent mitogen for rat hepatocytes. Two HGF/SF knockout mouse models have been reported, both of which exhibit developmental abnormalities causing embryonic lethality. To circumvent this limitation, we created a mouse conditionally deficient in liver expression of HGF/SF to specifically investigate the role of this mitogen in the process of adult liver regeneration. Gene targeting technology was used to generate a mouse with loxP sites flanking exon 5 of the HGF/SF gene (ex5-flox). In the absence of cre recombinase activity, mice homozygous for ex5-flox were indistinguishable from wild-type littermates. To ablate HGF/SF gene expression in vitro, primary hepatocytes established from homozygous HGF(ex5-flox) mice were infected with a recombinant adenoviral vector coding for cre recombinase (AdCre1). PCR analyses of genomic DNA demonstrated greater than 90% ablation of the ex5-floxed gene sequence. In vivo, HGF(ex.5-flox) mice were administered AdCre1 vector and the ablation of the HGF gene confirmed by Southern blot analysis. To induce liver regeneration, mice were injected with the hepatotoxin carbon tetrachloride. The regenerative capacity of hepatocytes in mice administered cre recombinase was shown to be significantly reduced when compared with mice injected with an adenovirus expressing LacZ. A similar reduction in hepatocyte regeneration was observed in HGF(ex.5.flox) mice carrying the cre transgene under the control of the interferon-inducible (pI:pC) Mx1 promoter, as an alternative strategy to ablate the HGF/SF gene in liver. Our results confirm the mitogenic role of HGF/SF in liver regeneration.
- Published
- 2004
- Full Text
- View/download PDF
41. Anesthesia for office endometrial procedures: a review of the literature.
- Author
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Leclair C
- Subjects
- Female, Humans, Physicians' Offices, United States, Ambulatory Surgical Procedures methods, Anesthesia methods, Endometrium pathology, Uterine Diseases surgery
- Abstract
Providing anesthesia for office endometrial procedures is a clinical challenge. The available techniques include the traditional paracervical block, the deep paracervical block, intrauterine lidocaine, topical spray lignocaine, and conscious sedation. Each offers some benefit in providing anesthesia during these procedures and can contribute to a more comfortable experience for the patient.
- Published
- 2002
42. Advances in polycystic ovary syndrome treatment: metformin and ovarian diathermy.
- Author
-
Leclair C and Patton PE
- Subjects
- Algorithms, Anovulation etiology, Anovulation therapy, Clomiphene therapeutic use, Combined Modality Therapy, Female, Humans, Hyperinsulinism complications, Ovarian Follicle drug effects, Ovulation Induction methods, Polycystic Ovary Syndrome complications, Diathermy, Hypoglycemic Agents therapeutic use, Metformin therapeutic use, Polycystic Ovary Syndrome therapy
- Abstract
Polycystic ovary syndrome (PCOS) affects approximately 6% of women in their reproductive years. The symptoms of the syndrome are chronic anovulation and androgen excess. Infertility due to ovulatory dysfunction is a common problem for women with PCOS. Metformin, an antihyperglycemic agent, can correct the metabolic dysfunction that occurs with PCOS, and also stimulate folliculogenesis. The drug is effective alone and in combination with clomiphene citrate. An alternative option, ovarian diathermy, also promotes ovulation through changes in the intraovarian hormonal environment. Both techniques provide promising and effective alternatives for women with PCOS who do not respond to traditional oral ovulation induction agents.
- Published
- 2002
43. Activation of innate immunity in nonhuman primates following intraportal administration of adenoviral vectors.
- Author
-
Schnell MA, Zhang Y, Tazelaar J, Gao GP, Yu QC, Qian R, Chen SJ, Varnavski AN, LeClair C, Raper SE, and Wilson JM
- Subjects
- Animals, Apoptosis, Bone Marrow Cells cytology, Bone Marrow Cells metabolism, Cells, Cultured, Dendritic Cells metabolism, Ficusin pharmacology, Flow Cytometry, Fluorescent Dyes pharmacology, Interleukin-6 biosynthesis, Kupffer Cells metabolism, Lac Operon, Liver metabolism, Lymphopenia, Macaca mulatta, Macrophages metabolism, Male, Methylcellulose metabolism, Microscopy, Electron, Models, Biological, Spleen cytology, Spleen metabolism, Thrombocytopenia, Time Factors, Tissue Distribution, Transaminases biosynthesis, Ultraviolet Rays, beta-Galactosidase metabolism, Adenoviridae genetics, Genetic Vectors
- Abstract
The innate immune response to intraportally infused adenoviral vector was evaluated in rhesus monkeys. A first-generation adenovirus-expressing lacZ (Ad-lacZ) was administered at a dose just below that which causes severe morbidity. The response to vector was evaluated for the initial 24 h following infusion. Clinical findings during this time were primarily limited to petechiae, consistent with the development of thrombocytopenia and biochemical evidence of disseminated intravascular coagulation. Serum transaminases were elevated and a lymphopenia developed. Tracking of fluorescent-labeled vector demonstrated distribution to macrophages and dendritic cells of the spleen and Kupffer cells of the liver. A systemic release of the cytokine IL-6 occurred soon after vector infusion. Analysis of splenic cells revealed acute activation of macrophages and dendritic cells followed by massive apoptosis. Bone marrow cultures demonstrated normal erythroid and primitive progenitors with a significant decrease in myeloid progenitors. Similar findings, except the abnormality in bone marrow cultures, were observed in monkeys who received an identical dose of Ad-lacZ in which vector genes were inactivated with psoralen and UV irradiation. These data suggest that inadvertent targeting of antigen-presenting cells following intraportal infusion of vector leads to a systemic cytokine syndrome which may be triggered by the viral capsid proteins.
- Published
- 2001
- Full Text
- View/download PDF
44. Assessing and responding to pre/periconception risks--early experience with the Rhode Island Women's Health Screening & Referral Program.
- Author
-
Hollinshead WH, Vigliani MB, Walsh NE, LeClair CA, and Zelano LA
- Subjects
- Adolescent, Adult, Female, Health Education, Health Surveys, Humans, Patient Participation, Pregnancy, Rhode Island, Risk Factors, Surveys and Questionnaires, Health Knowledge, Attitudes, Practice, Mass Screening organization & administration, Maternal Welfare, Outcome Assessment, Health Care, Prenatal Care methods, Referral and Consultation organization & administration, Women's Health
- Published
- 2000
45. Contraceptive methods and utilization in Rhode Island.
- Author
-
Viner-Brown SI, Kim H, Hesser J, and LeClair CA
- Subjects
- Adult, Age Factors, Contraception statistics & numerical data, Educational Status, Employment, Ethnicity, Female, Humans, Income, Insurance, Health, Male, Marital Status, Middle Aged, Parity, Racial Groups, Residence Characteristics, Rhode Island epidemiology, Sex Factors, Contraception methods
- Published
- 1998
46. Case study. Outcomes management in orthopaedics.
- Author
-
Walker D, Houston S, and LeClair C
- Subjects
- Hospital Charges, Humans, Length of Stay, Organizational Innovation, Patient Satisfaction, Hospital Departments organization & administration, Hospital Restructuring organization & administration, Orthopedic Nursing standards, Orthopedics standards, Outcome and Process Assessment, Health Care organization & administration, Patient Care Team organization & administration
- Abstract
Improving outcomes while maintaining quality and satisfaction in today's healthcare environment is a challenge. This article shares some of the foundation work and the results of an interdisciplinary team effort toward that goal. Changes in care practices and their impact on outcomes can promote the welfare of the patient, institution, and the nation's health.
- Published
- 1997
47. Building a patient-focused unit: the nurse manager's challenge.
- Author
-
Kerfoot KM and LeClair C
- Subjects
- Hospital Units standards, Humans, Organizational Objectives, Planning Techniques, Hospital Units organization & administration, Nursing, Supervisory methods, Patient Satisfaction
- Abstract
Developing a patient-focused unit is necessary to attain the highest standards of patient care. It is only when we can view our unit through the eyes of a patient that we will be able to see ourselves as others see us. Professionally, we have committed ourselves to creating caring environments that promote healing. We cannot meet this goal until we make a commitment to be patient-focused and give up being nurse-focused or facility-focused.
- Published
- 1991
48. Introducing and accounting for RN case management.
- Author
-
Leclair CL
- Subjects
- Humans, Nursing Staff, Hospital organization & administration, Accounting organization & administration, Nursing Service, Hospital organization & administration, Patient Care Planning organization & administration
- Published
- 1991
- Full Text
- View/download PDF
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