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2. In collaboration with the Canadian Anesthesiologists’ Society, the Canadian Journal of Anesthesia is proud to publish the best abstracts presented at the Annual Meeting of the Canadian Anesthesiologists’ Society held in Quebec City, Quebec, June 18–22, 2004

Author

David C. Campbell, Terrance W. Breen, Stephen Halpern, Holly Muir, Robert Nunn, H. Yang, K. Raymer, R. Butler, J. Parlow, R. Roberts, Rita Katznelson, Keyvan Karkouti, Mohammed Ghannam, Esam Abdelnaem, Jo Carroll, Stuart McCluskey, Terrence M. Yau, Jacek Karski, Gregory M. T. Hare, C. David Mazer, Xiamao Li, Rong Qu, May S. M. Cheung, Carla Coackley, Andrew J. Baker, Michael Ronayne, Dajun Song, Frances Chung, Barnaby Ward, Suntheralingam Yogendran, Carolyn Sibbick, Tejinder S. Chhina, Harry Lapierre, Zane S. Jackson, Howard M. Leong-Poi, Jerome M. Teitel, David A. Latter, Bradley H. Strauss, Peter L. Gross, Kong E. You-Ten, Valerie B. Caraiscos, Erin M. Elliot, Victor Y. Cheng, John F. MacDonald, Beverley A. Orsera, Richard Brail, Colin J. L. McCartney, Sherif Abbas, Hugo Nova, Regan Rawson, Vincent W. S. Chan, Joel Katz, Brent Graham, Dimitri Anastakis, and Herbert von Schroeder

Subjects
Anesthesiology and Pain Medicine, Jury, business.industry, Anesthesia, media_common.quotation_subject, Medicine, General Medicine, Editorial board, Patient controlled epidural analgesia, business, media_common
Abstract

tion by a member of the Society. The Richard Knill competition was instituted in memory of Dr. Richard Knill, a foremost researcher in anesthesiology and prominent collaborator to the Canadian Journal of Anesthesia (CJA). The Annual Meeting Committee selects the top abstracts submitted for presentation by members of the Society at the Annual Meeting. The authors are invited to present their results at the Richard Knill competition. Presentations are marked by a jury composed of the members of the Editorial Board of the CJA. In 2004, the Richard Knill Award was presented to Dr. David C. Campbell for his work on Patient Controlled Epidural Analgesia during labour.

Published
2004
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3. Abstract

Author

Tejinder S. Chhina, Harry Lapierre, Zane S. Jackson, Howard M. Leong-Poi, Jerome M. Teitel, David A. Latter, Bradley H. Strauss, Peter L. Gross, C. David Mazer, Richard Brull, Colin J. L. McCartney, Sherif Abbas, Hugo Nova, Regan Rawson, Vincent W. S. Chan, Joel Katz, Brent Graham, Dimitri Anastakis, Herbert von Schroeder, Alexandre Lallo, Pierre Drolet, Mélanie Lacroix, Kong E. You-Ten, Valerie B. Caraiscos, Erin M. Elliot, Victor Y. Cheng, John F. MacDonald, Beverley A. Orser, Bertrand Lau, Ban C. H. Tsui, Heather L. Mollison, William P. S. McKay, Rajesh Patel, Vance Chow, October Negraeff, Rana Karam, H. Yang, K. Raymer, R. Butler, J. Parlow, R. Roberts, David C. Campbell, Terrance W. Breen, Stephen Halpern, Holly Muir, Robert Nunn, Rita Katznelson, Keyvan Karkouti, Mohammed Ghannam, Esam Abdelnaem, Jo Carroll, Stuart McCluskey, Terrence M. Yau, Jacek Karski, Gregory M. T. Hare, Xiamao Li, Rong Qu, May S. M. Cheung, Carla Coackley, Andrew J. Baker, Michael Ronayne, Dajun Song, Frances Chung, Barnaby Ward, Suntheralingam Yogendran, Carolyn Sibbick, Lisa C. Silcox, Ted L. Ashbury, Brian Milne, Elizabeth G. VanDen Kerkhof, Pamela J. Morgan, Doreen Cleave-Hogg, Susan DeSousa, Louie Wang, Jelka Lujic, Niamh I. Donnelly, Clint J. Torok-Both, Barry Finegan, Michael J. Jacka, Barry A. Finegan, Rajiv Chawla, Ravi K. Agrawal, Mahendra Kumar, David H. Goldstein, James E. Paul, Monakshi Sawhney, W. Scott Beattie, Richard F. McLean, Joel L. Parlow, Deborah A. Tod, Dmitri Souzdalnitski, Elena Sourovtseva, Donald Livingstone, Gil Faclier, Jason Sawyer, Joseph Kay, Arsenio Avila, Mrinalini Balki, Pirjo H. Manninen, Karolinah Lukitto, Michael B. Lukins, Keya Quader, Munisha Agarwal, Rakhi Kawatra, J. S. Dali, Peter H. Mak, Geraldine Jose, Sean R. Hall, Murray Hong, Ivan L. Rapchuk, Karen Loo, Alain Deschamps, Asaha Suzuki, Akifumi Kanai, Sumio Hoka, Anthony M. -H. Ho, Manoj K. Karmakar, Anna Lee, Winnie Samy, Jie Yi, Paul B. S. Lai, Amy Cho, E. Stockton, S. Gowrie-Mohan, P. U. Ramanayake, S. Jothilingam, Ali Mirmansouri, Alese M. Wagner, Kirsten Cunningham, Shirley Perry, Sunil Desai, Clint Torok-Both, Kathryn DeKoven, Paul Brousseau, Orlando Hung, Adam Law, Derek Levangie, Ronald Cheverie, Karen M. Caputo, Robert Byrick, Martin Chapman, Kim Vicente, Glen Atlas, Josiane Léveillé, Dany Côté, Julie Soucy, Jean S. Bussières, Duminda N. Wijeysundera, George Djaiani, Vivek Rao, Michael A. Borger, Robert J. Cusimano, Anoush D. Moghadam, Abtin Heydarzadeh, Ashraf A. Fayad, Homer Yang, Elizabeth Ling, Paul K. Tenenbein, Doug Maguire, Roland Debrouwere, Peter C. Duke, Stephen E. Kowalski, Devashish Chakravarty, Jean-Yves Dupuis, Howard Nathan, Fraser Rubens, Roy Masters, Paul Hendry, Thierry Mesana, Hyun Ju Jung, Dmitri Chamchad, Valerie Arkoosh, Duminda Wijeysundera, Chris Chan, Kathleen Datillo, Joan Ivano, Cantwell Clark, Reed D. Quinn, John H. Braxton, Andreas H. Taenzer, Kristen M. Sullivan, Osama A. Al-Abdulhadi, Diane R. Biehl, Bill Y. Ong, Abdulaziz Boker, Kristine I. Stewart, Susan A. Shaw, Jeong-Yeon Hong, Susan K. Palmer, Rose Kung, Stephen H. Halpern, Jennifer A. Yee, Eric Goldszmidt, Crystal Chettle, Ralph Kern, Kristi Downey, Isabella Devito, Alison Macarthur, Niall L. Purdie, Pamela J. Angle, Christine Kurtz-Landy, David Streiner, Cathy Charles, Jo Watson MacDonnell, Desmond Lam, Lie Ming Lie, Jean E. Kronberg, Dorothy E. Thompson, Haiheng Dong, Ayman Hyder, Qinghua Wang, Wei-Yang Lu, Ngozi N. Imasogie, Atul Prahbu, Bruna Curti, Zoya Potyomkina, Matthew R. Belmont, Joseph Tjan, Cynthia A. Lien, Sanjay Patel, Charles Imarengiaye, Javad Peirovy, Reginald Edward, Frances F. Chung, Leonid Kayumov, David R. Sinclair, Henry J. Moller, Colin M. Shapiro, Guillaume Michaud, Guillaume Trager, Stephane Deschamps, Thomas M. Hemmerling, Janet Hsu, Patrick Cheng, John T. Granton, Alan D. Baxter, Salmaan Kanji, Adam D. Oxner, Karen J. Buth, Gregory M. Hirsch, Claudio DiQuinzio, Kristine A. Hirsch, A. Denault, P. Couture, M. Carrier, A. Fortier, D. Babin, J. C. Tardif, Jean-François Olivier, Fadi Basile, Ignatio Prieto, Nhiên Lê, Yuji Hirasaki, Patricia Murphy, Karen McRae, Thomas Waddell, Shaf Keshavjee, Peter Slinger, Adriaan Van Rensburg, Terry M. Yau, Eric Yeo, David Sutton, Michael Borger, Gilbert Blaise, Marius D. Gangal, Lan Gao, Stuart A. McCluskey, Wing Cheung, Bobby Metha, Humara Poonwala, Ludwik Fedorko, Johnson R. Symon, Mark D. Peterson, Carl C. P. Leipoldt, Michelle Clunie, William P. S. Mckay, Grant Miller, Joanne Guay, Louise Lortie, Soochang Son, Yunhee Kim, Toshimi Arai, Masao Yamashita, Denise Rohan, Ross Barlow, Sean J. Barbour, J. Mark Ansermino, Christine A. Vandebeek, Rangamani K. Raman, Nao Nakatsuka, Carolyne J. Montgomery, Erik D. Skarsgard, Colleen A. Court, James S. Galton, Mark W. Crawford, Basem Naser, Clifford Carter, Richard Liu, Andrew G. Usher, Dominic A. Cave, Cathy Tang, Jason A. Hayes, and Juliana M. Tan

Subjects
Anesthesiology and Pain Medicine, General Medicine
Published
2004
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4. Preoperative identification of sleep apnea risk in elective surgical patients, using the Berlin questionnaire

Author

Joyce Ho, Barnaby Ward, Colin M. Shapiro, Leonid Kayumov, Frances Chung, and Hongbo Yuan

Subjects
Male, Canada, Referral, Polysomnography, Risk Assessment, Sensitivity and Specificity, Sleep Apnea Syndromes, Surveys and Questionnaires, Preoperative Care, medicine, Prevalence, Humans, Risk factor, Elective surgery, medicine.diagnostic_test, business.industry, Sleep apnea, Reproducibility of Results, Middle Aged, medicine.disease, Confidence interval, respiratory tract diseases, Obstructive sleep apnea, Clinical trial, Anesthesiology and Pain Medicine, Elective Surgical Procedures, Anesthesia, Female, business
Abstract

Study Objective: To examine the prevalence of risk of sleep apnea in patients undergoing elective surgery by using the Berlin Questionnaire. Design: Survey instrument. Settings: Preoperative assessment clinic. Patients: 305 surgical ASA physical status I, II, III, and IV patients. Interventions: Patients were screened with the Berlin questionnaire for obstructive sleep apnea. For patients deemed at high risk of sleep apnea by the Berlin questionnaire, a letter was sent to their family physician requesting referral of patient to have an overnight polysomnography test for the diagnosis of obstructive sleep apnea. Measurements: The number of patients identified by the Berlin questionnaire as being at high risk of obstructive sleep apnea was identified. The number of patients with a history of obstructive sleep apnea and those newly confirmed by polysomnography were also identified. Main Results: The Berlin questionnaire identified 24% (73/305) of patients as being at high risk of sleep apnea (95% confidence interval, 19%-29%). Thirteen patients were confirmed to have obstructive sleep apnea, resulting in a frequency of 4.2%; 9 patients had a history of obstructive sleep apnea, and 5 patients were identified by polysomnography. Conclusions: The Berlin questionnaire correctly identified all patients previously diagnosed with sleep apnea as being at high risk.

Published
2006

5. Cognitive function is minimally impaired after ambulatory surgery

Author

Charles Imarengiaye, Barnaby Ward, Javad Peirovy, and Frances Chung

Subjects
Adult, Male, medicine.medical_specialty, Anesthesia, General, Recovery period, Postoperative Complications, Interquartile range, Anesthesiology, Surveys and Questionnaires, medicine, Humans, Local anesthesia, Aged, CFQ, business.industry, Cognitive disorder, Cognition, General Medicine, Middle Aged, medicine.disease, Surgery, Anesthesiology and Pain Medicine, Ambulatory Surgical Procedures, Anesthesia, Ambulatory, Female, business, Cognition Disorders, Anesthesia, Local
Abstract

To evaluate the magnitude of subjective cognitive failure in the three days following general anesthesia (GA) for ambulatory surgery.After Research Ethics Board approval, 258 patients undergoing general anesthesia (GA) and 250 patients scheduled for local anesthesia (LA) were recruited from our ambulatory surgical unit. Following the method of Tzabar, Asbury and Millar, patients were asked to complete the cognitive failures questionnaire (CFQ) before their procedure (with respect to the previous three days) and on the third postoperative day (with respect to their recovery period).General anesthesia and LA groups were similar in demographic make-up, except that the LA group contained more patients of American Society of Anesthesiologists physical status I (64.5% vs 52.7%, P0.05) and had significantly shorter procedure duration (25 vs 51 min, P0.01) than the GA group. Median preoperative CFQ scores (interquartile range) were 26 (18) for the LA group and 26 (18) for the GA group. Postoperative CFQ scores were 25 (20) for the LA group and 28 (22) for the GA group. There was no significant difference in preoperative CFQ score between groups (Mann-Whitney U). When preoperative and postoperative CFQ scores were compared, the small increase seen in the GA group was statistically significant (P0.05, Wilcoxon).A statistically significant impairment of cognitive function in the three days following GA, but not LA was found. However, the magnitude of this impairment was small, and is of doubtful clinical significance. Modern ambulatory anesthesia may cause less delayed cognitive impairment than was previously thought.

Published
2005

6. Pre-operative identification of sleep apnea risk in elective surgical patients

Author

Colin M. Shapiro, Hongbo Yuan, Barnaby Ward, Frances Chung, Joyce Ho, and Leonid Kayumov

Subjects
medicine.medical_specialty, business.industry, Sleep apnea, General Medicine, medicine.disease, Plastic surgery, Anesthesiology and Pain Medicine, Anesthesiology, Anesthesia, Orthopedic surgery, medicine, Physical therapy, Chi-square test, Local anesthesia, Neurosurgery, business, Body mass index
Abstract

METHODS: After Institutional Ethics Board approval, patients were asked to complete the Berlin questionnaire as a part of their preoperative assessment. Inclusion criteria a) patients with ASA I IV; b) patients scheduled for elective procedures in general surgery, orthopedics, urology, plastic surgery, ophthalmology or neurosurgery. Exclusion criteria: patients undergoing surgery under neuroleptic or local anesthesia. Physical data regarding blood pressure and body mass index was also recorded. Patients were stratified into high or low risk groups for sleep apnea on the basis of their responses and physical data. The high and low risk groups for sleep apnea as identified by the Berlin questionnaire were compared. All patients deemed at high risk of sleep apnea by the Berlin questionnaire were offered an appointment for overnight polysomnographic testing for diagnosis of sleep apnea. Demographic data was analysed using the Chi square test and Student t test.

Published
2005
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