10 results on '"Cyrus C. Hsia"'
Search Results
2. Transfusion Camp: a prospective evaluation of a transfusion education program for multispecialty postgraduate trainees
- Author
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Nadine Shehata, Christie Lee, Jill Dudebout, Qi-Long Yi, Paula Nixon, David M. Conrad, Wendy Lau, Christine Cserti-Gazdewich, Michael F. Murphy, Katerina Pavenski, Yulia Lin, Ziad Solh, Jacqueline D. Trudeau, Asim Alam, Sophie Chargé, Everad Tilokee, Oksana Prokopchuk-Gauk, Lani Lieberman, Elianna Saidenberg, Wendy Owens, Robert Skeate, Michelle P. Zeller, Cyrus C. Hsia, Jacob Pendergrast, Jeannie Callum, and Akshay Shah
- Subjects
Program evaluation ,Canada ,Health Knowledge, Attitudes, Practice ,medicine.medical_specialty ,Students, Medical ,Medical psychology ,Immunology ,Specialty ,MEDLINE ,030204 cardiovascular system & hematology ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,Immunology and Allergy ,Blood Transfusion ,Prospective Studies ,Prospective cohort study ,Academic year ,Transfusion Medicine ,business.industry ,Attendance ,Internship and Residency ,Transfusion medicine ,Hematology ,Attitude ,Family medicine ,Medicine ,Curriculum ,Self Report ,business ,Program Evaluation ,030215 immunology - Abstract
BACKGROUND The optimal method of providing transfusion medicine (TM) education has not been determined. Transfusion Camp was established in 2012 at the University of Toronto as a centrally delivered TM education program for postgraduate trainees. The impact of Transfusion Camp on knowledge, attitudes, and self-reported behavior was evaluated. METHODS Didactic lectures (delivered locally, by webinar, or recorded) and locally facilitated team-based learning seminars were delivered over 5 days during the academic year to 8 sites: 7 in Canada and 1 in the United Kingdom. Knowledge assessment using a validated 20-question multiple-choice exam was conducted before and after Transfusion Camp. Attitudes and self-reported behavior were collected through a survey. RESULTS Over 2 academic years (July 2016 to June 2018), 390 trainees from 16 different specialties (predominantly anesthesia, 41%; hematology, 14%; and critical care, 7%) attended at least 1 day of Transfusion Camp. The mean pretest score was 10.3 of 20 (±2.9; n = 286) compared with posttest score of 13.0 (±2.8; n = 194; p < 0.0001). Lower pretest score and greater attendance (4-5 days compared with 1-3 days) were associated with larger improvement in posttest score; delivery format, specialty, and postgraduate year were not. Trainees reported an improvement in self-rated abilities to manage TM scenarios; 95% rated TM knowledge as very or extremely important in providing patient care; and 81% indicated that they had applied learning from Transfusion Camp into clinical practice. CONCLUSIONS Transfusion Camp increased TM knowledge, fostered a positive attitude toward TM, and enabled a self-reported positive impact on transfusion practice in postgraduate trainees. It is a novel and scalable approach to delivering TM education.
- Published
- 2019
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3. Use of n-of-1 (single patient) trials to assess the effect of age of transfused blood on health-related quality of life in transfusion-dependent patients
- Author
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Maayan Seitelbach, Cyrus C. Hsia, Guangyong Zou, Ian Chin-Yee, Justin Chia, and Jeffrey L. Mahon
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N of 1 trial ,Pediatrics ,medicine.medical_specialty ,Blood transfusion ,Anemia ,business.industry ,Myelodysplastic syndromes ,medicine.medical_treatment ,Immunology ,Hematology ,030204 cardiovascular system & hematology ,medicine.disease ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Randomized controlled trial ,Quality of life ,law ,030220 oncology & carcinogenesis ,medicine ,Immunology and Allergy ,Hemoglobin ,Myelofibrosis ,business - Abstract
BACKGROUND The impact of age of red blood cells on health-related quality of life (HRQL) in patients who require chronic transfusions is not known. We assessed this using n-of-1 trials in patient populations where large randomized trials have not been done to date. STUDY DESIGN AND METHODS Chronically transfusion-dependent adult patients were randomly assigned over time to four fresh (
- Published
- 2016
- Full Text
- View/download PDF
4. Effect of a thrombopoietin receptor agonist on use of intravenous immune globulin in patients with immune thrombocytopenia
- Author
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Caroline Hamm, Korinne Hamilton, Grace Wang, Normand Blais, Nancy M. Heddle, Lisa J. Toltl, Naushin S. Sholapur, Donald M. Arnold, Julie Carruthers, Cyrus C. Hsia, Michelle P. Zeller, Marc-Andre Pearson, and John G. Kelton
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medicine.medical_specialty ,Pediatrics ,Romiplostim ,business.industry ,medicine.medical_treatment ,Immunology ,Splenectomy ,Retrospective cohort study ,Hematology ,030204 cardiovascular system & hematology ,Surgery ,Clinical trial ,03 medical and health sciences ,0302 clinical medicine ,Pharmacotherapy ,Interquartile range ,hemic and lymphatic diseases ,030220 oncology & carcinogenesis ,Concomitant ,Immunology and Allergy ,Medicine ,business ,Thrombopoietin ,medicine.drug - Abstract
BACKGROUND Thrombopoietin receptor agonists are new treatments for patients with chronic immune thrombocytopenia (ITP). How one of these agent, romiplostim, has impacted practice patterns, especially the use of intravenous immune globulin (IVIG), has not been evaluated outside of clinical trials. STUDY DESIGN AND METHODS This was a retrospective cohort study of adult ITP patients treated with romiplostim in four Canadian centers. Patients had primary or secondary ITP and were followed for 1 year before starting weekly romiplostim treatment. We compared IVIG use, clinical outcomes, and cost before and after romiplostim. RESULTS Twenty-nine patients with ITP received romiplostim. Median age was 54 years (interquartile range [IQR], 45-63 years) and patients had a median of two prior ITP treatments (IQR, 1-4) including splenectomy (n = 7). Median platelet (PLT) count was 23 × 109 before and 124 × 109 after romiplostim. Median duration of romiplostim treatment was 3.7 months. Patients used a median of two IVIG infusions per year before and 0.7 per year after starting romiplostim (p = 0.16). For patients who received weekly romiplostim for at least 1 month (n = 19), IVIG infusions were three (IQR, 1-5) per year before and 0.7 (IQR, 0.4-1.6) per year after romiplostim. Results were squewed by two high IVIG users. Nineteen (66%) patients discontinued romiplostim treatment during follow-up because of lack of response (n = 8), sustained response (n = 5), toxicities (n = 4), or response to splenectomy (n = 2). Overall health care costs were similar before and after romiplostim when concomitant treatments, nursing resources, and hospitalizations were considered. CONCLUSIONS Romiplostim was associated with improved PLT counts and fewer IVIG infusions for most ITP patients. In practice, romiplostim was generally not continued long term and was cost neutral for overall ITP management.
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- 2015
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5. Incidence and natural history of intravenous immunoglobulin-induced aseptic meningitis: a retrospective review at a single tertiary care center
- Author
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Kathleen Eckert, Ian Chin-Yee, Vighnesh Bharath, Matthew Kang, and Cyrus C. Hsia
- Subjects
Pediatrics ,medicine.medical_specialty ,medicine.drug_class ,business.industry ,Incidence (epidemiology) ,Immunology ,Antibiotics ,Aseptic meningitis ,Retrospective cohort study ,Hematology ,medicine.disease ,Natural history ,hemic and lymphatic diseases ,medicine ,Immunology and Allergy ,Complication ,business ,Meningitis ,Biomedical sciences - Abstract
BACKGROUND Aseptic meningitis is a rare but significant complication of intravenous immunoglobulin (IVIG) therapy. The majority of literature is limited to case reports, so the true incidence of this complication is uncertain. STUDY DESIGN AND METHODS A retrospective review of all cases of IVIG-associated adverse transfusion reactions was performed at London Health Sciences Centre (LHSC) from January 1, 2008, to December 31, 2013. All reported transfusion reactions were evaluated to identify cases of aseptic meningitis due to IVIG. All documented IVIG infusions and lumbar punctures performed during the study period were reviewed; patients with both interventions were identified and further chart review was performed to identify aseptic meningitis. RESULTS During our study period, 1324 unique patients received a total of 11,907 IVIG infusions (554,566 g) for various conditions. Eight cases of aseptic meningitis were identified, suggesting an overall incidence of 0.60% for all patients and 0.067% for all IVIG infusions. Patients presented with symptoms within 24 to 48 hours of the infusion and were treated with antibiotics initially. The reactions were self-limited, as symptoms self-resolved within 5 to 7 days. Treatment was supportive, with subsequent IVIG infusions likely requiring preinfusion medication or possibly a switch in product formulation. CONCLUSION This review of IVIG-induced aseptic meningitis over a 6-year period identifies a more robust estimate of incidence and risk of 0.60% and 0.067% for all patients and infusions, respectively. Given that this complication can mimic infectious meningitis and cause considerable morbidity, physicians need to be aware of this rare but important condition.
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- 2015
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- View/download PDF
6. Use of n-of-1 (single patient) trials to assess the effect of age of transfused blood on health-related quality of life in transfusion-dependent patients
- Author
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Cyrus C, Hsia, Jeffrey L, Mahon, Maayan, Seitelbach, Justin, Chia, Guangyong, Zou, and Ian H, Chin-Yee
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Adult ,Aged, 80 and over ,Blood Cells ,Cross-Over Studies ,Time Factors ,Middle Aged ,Hematologic Diseases ,Hemoglobins ,Blood Preservation ,Surveys and Questionnaires ,Quality of Life ,Humans ,Blood Transfusion ,Cellular Senescence ,Aged - Abstract
The impact of age of red blood cells on health-related quality of life (HRQL) in patients who require chronic transfusions is not known. We assessed this using n-of-1 trials in patient populations where large randomized trials have not been done to date.Chronically transfusion-dependent adult patients were randomly assigned over time to four fresh (7 days of storage) and four standard-issue (up to 42 days of storage) blood transfusions in prospective double-blinded multicrossover studies (n-of-1 trials). HRQL questionnaires were completed before and at 24 hours after each transfusion. Hemoglobin (Hb) levels were measured before each subsequent transfusion.Twenty transfusion-dependent patients were enrolled, of whom nine (five myelodysplastic syndromes, two myelofibrosis, one β-thalassemia major, one Diamond-Blackfan anemia) completed at least six transfusions. Mean ages of fresh and standard-issue blood transfused were 4.0 and 23.2 days, respectively. There were no significant differences in the effect of standard and fresh blood on follow-up Hb levels or the eight HRQL dimensions assessed in all analyses.In chronically transfused patients, there were no significant differences in HRQL or Hb levels between fresh versus standard blood. While larger trials are needed, these results support current practices in hospital blood transfusion laboratories using a first-in, first-out model of blood utilization for these transfusion-dependent patients. Use of n-of-1 trials to determine the benefits of transfusions in single patients appears to be feasible.
- Published
- 2015
7. Incidence and natural history of intravenous immunoglobulin-induced aseptic meningitis: a retrospective review at a single tertiary care center
- Author
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Vighnesh, Bharath, Kathleen, Eckert, Matthew, Kang, Ian H, Chin-Yee, and Cyrus C, Hsia
- Subjects
Male ,Tertiary Care Centers ,Incidence ,Humans ,Immunoglobulins, Intravenous ,Female ,Meningitis, Aseptic ,Middle Aged ,Aged ,Retrospective Studies - Abstract
Aseptic meningitis is a rare but significant complication of intravenous immunoglobulin (IVIG) therapy. The majority of literature is limited to case reports, so the true incidence of this complication is uncertain.A retrospective review of all cases of IVIG-associated adverse transfusion reactions was performed at London Health Sciences Centre (LHSC) from January 1, 2008, to December 31, 2013. All reported transfusion reactions were evaluated to identify cases of aseptic meningitis due to IVIG. All documented IVIG infusions and lumbar punctures performed during the study period were reviewed; patients with both interventions were identified and further chart review was performed to identify aseptic meningitis.During our study period, 1324 unique patients received a total of 11,907 IVIG infusions (554,566 g) for various conditions. Eight cases of aseptic meningitis were identified, suggesting an overall incidence of 0.60% for all patients and 0.067% for all IVIG infusions. Patients presented with symptoms within 24 to 48 hours of the infusion and were treated with antibiotics initially. The reactions were self-limited, as symptoms self-resolved within 5 to 7 days. Treatment was supportive, with subsequent IVIG infusions likely requiring preinfusion medication or possibly a switch in product formulation.This review of IVIG-induced aseptic meningitis over a 6-year period identifies a more robust estimate of incidence and risk of 0.60% and 0.067% for all patients and infusions, respectively. Given that this complication can mimic infectious meningitis and cause considerable morbidity, physicians need to be aware of this rare but important condition.
- Published
- 2015
8. Current state of undergraduate medical school training in transfusion medicine and its impact on postgraduate trainee knowledge.
- Author
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Rahmani M, Chargé S, Bodnar M, Callum J, Hsia C, Lavoie M, Lemay AS, Mack J, Prokopchuk-Gauk O, Trudeau J, Zeller MP, and Lin Y
- Subjects
- Humans, Canada, Surveys and Questionnaires, Schools, Medical, Male, Female, Clinical Competence, Transfusion Medicine education, Education, Medical, Undergraduate methods, Curriculum
- Abstract
Background: Studies have described poor transfusion medicine (TM) knowledge in postgraduate trainees. The impact of undergraduate medical TM education on postgraduate knowledge is unclear., Methods: Canadian medical schools were surveyed on the number of hours dedicated to TM teaching and topics covered by curricula during 2016-2020. Postgraduate trainees attending Transfusion Camp in 2021 completed a pretest of 20 multiple-choice questions. The survey results and pretest scores were compared to evaluate the association between undergraduate medical TM education and pretest scores., Results: The survey was completed by 16 of 17 Canadian medical schools. The number of hours (h) of TM teaching were <2 h (25%), 3-4 h (25%), and >4 h (50%). Twelve of 19 Transfusion Camp topics were covered in ≥50% of schools. Eleven medical schools provided ethics approvals/waivers to include trainee pretest scores in the analysis (N = 200). The median pretest scores by medical school ranged from 48% to 70%. No association was found between number of TM teaching hours and average pretest scores (p = .60). There was an association between higher postgraduate year level and individual pretest score (p < .0001). The analysis by topic demonstrated questions where trainees from different schools performed uniformly well or poorly; other topics showed considerable variation., Conclusion: Variation in quantity and content of undergraduate TM teaching exists across Canadian medical schools. In this limited assessment, the number of TM teaching hours was not associated with performance on the pretest. This study raises the opportunity to re-evaluate the delivery (content, timing, consistency) of TM education in undergraduate medical schools., (© 2024 The Author(s). Transfusion published by Wiley Periodicals LLC on behalf of AABB.)
- Published
- 2024
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9. Blood donation and testosterone replacement therapy.
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Chin-Yee B, Lazo-Langner A, Butler-Foster T, Hsia C, and Chin-Yee I
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- Adult, Aged, Hematocrit, Humans, Male, Middle Aged, Polycythemia blood, Polycythemia chemically induced, Practice Guidelines as Topic, Testosterone adverse effects, Blood Donors, Hemoglobins metabolism, Hormone Replacement Therapy, Testosterone therapeutic use
- Abstract
Background: Polycythemia is the most common adverse effect of testosterone replacement therapy (TRT) and may predispose patients to adverse vascular events. Current Canadian guidelines recommend regular laboratory monitoring and discontinuing TRT or reducing the dose if the hematocrit exceeds 54% (hemoglobin ≥180 g/L). This threshold has been interpreted by some physicians and patients to indicate the need for phlebotomy or blood donation while on TRT., Study Design and Methods: We reviewed all male blood donors in Southwestern Ontario at Canadian Blood Services from December 2013 to March 2016 who self-identified or were found on donor screening to be on TRT. Hemoglobin concentration was measured at the time of donation or clinic visit and with each subsequent appointment in repeat donors., Results: We identified 39 patients on TRT who presented for blood donation over a 2-year period. The mean hemoglobin level at all clinic visits was 173 g/L (range, 134-205 g/L; n = 108). Hemoglobin concentrations of 180 g/L or more (calculated hematocrit, ≥54%) were measured at 25% of appointments. Of the 27 repeat donors, 12 (44%) had persistently elevated hemoglobin levels (≥180 g/L) at subsequent donations., Conclusion: Hemoglobin concentrations were elevated in donors on TRT, and significant numbers had hemoglobin levels above those recommended by current guidelines. These data also suggest that repeat blood donation was insufficient to maintain a hematocrit below 54%. Our findings raise concerns about the persistent risk of vascular events in these donors, particularly when coupled with the misperception by patients and health care providers that donation has reduced or eliminated the risks of TRT-induced polycythemia., (© 2017 AABB.)
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- 2017
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10. Effect of a thrombopoietin receptor agonist on use of intravenous immune globulin in patients with immune thrombocytopenia.
- Author
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Zeller MP, Heddle NM, Kelton JG, Hamilton K, Wang G, Sholapur N, Carruthers J, Hsia C, Blais N, Toltl L, Hamm C, Pearson MA, and Arnold DM
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Chronic Disease, Drug Administration Schedule, Drug Therapy, Combination, Female, Follow-Up Studies, Humans, Male, Middle Aged, Retrospective Studies, Treatment Outcome, Young Adult, Immunoglobulins, Intravenous therapeutic use, Immunologic Factors therapeutic use, Purpura, Thrombocytopenic, Idiopathic drug therapy, Receptors, Fc therapeutic use, Receptors, Thrombopoietin agonists, Recombinant Fusion Proteins therapeutic use, Thrombopoietin therapeutic use
- Abstract
Background: Thrombopoietin receptor agonists are new treatments for patients with chronic immune thrombocytopenia (ITP). How one of these agent, romiplostim, has impacted practice patterns, especially the use of intravenous immune globulin (IVIG), has not been evaluated outside of clinical trials., Study Design and Methods: This was a retrospective cohort study of adult ITP patients treated with romiplostim in four Canadian centers. Patients had primary or secondary ITP and were followed for 1 year before starting weekly romiplostim treatment. We compared IVIG use, clinical outcomes, and cost before and after romiplostim., Results: Twenty-nine patients with ITP received romiplostim. Median age was 54 years (interquartile range [IQR], 45-63 years) and patients had a median of two prior ITP treatments (IQR, 1-4) including splenectomy (n = 7). Median platelet (PLT) count was 23 × 10(9) before and 124 × 10(9) after romiplostim. Median duration of romiplostim treatment was 3.7 months. Patients used a median of two IVIG infusions per year before and 0.7 per year after starting romiplostim (p = 0.16). For patients who received weekly romiplostim for at least 1 month (n = 19), IVIG infusions were three (IQR, 1-5) per year before and 0.7 (IQR, 0.4-1.6) per year after romiplostim. Results were squewed by two high IVIG users. Nineteen (66%) patients discontinued romiplostim treatment during follow-up because of lack of response (n = 8), sustained response (n = 5), toxicities (n = 4), or response to splenectomy (n = 2). Overall health care costs were similar before and after romiplostim when concomitant treatments, nursing resources, and hospitalizations were considered., Conclusions: Romiplostim was associated with improved PLT counts and fewer IVIG infusions for most ITP patients. In practice, romiplostim was generally not continued long term and was cost neutral for overall ITP management., (© 2015 AABB.)
- Published
- 2016
- Full Text
- View/download PDF
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