- Email: [email protected]
337 Withdrawn
S223
Abstracts
fibrotic lung disease was readmitted with worsening respiratory symptoms on day 15. All patients, save the patient with advanced fibrosis, were NYHA class I or II at 30 days and no patient had more than mild paravalvular regurgitation. CONCLUSION: Rigorous patient screening as well as improvements in procedural guidance and device selection allows safe next day discharge in high risk operable patients undergoing contemporary TAVR. This will likely have significant impact on the acceptance of TAVR in a broader range of lower risk patients.
CONCLUSION: In a heterogeneous population of patients awaiting renal transplantation in Southern Saskatchewan, about 1 in 3 patients had a change in their subsequent perfusion scan from a normal result to an abnormal result. Updated data for the entire province of Saskatchewan will be available in October 2012.
339 CARDIOVASCULAR RISK FACTORS AND HOSPITALIZATIONS IN VISIBLE MINORITY NEIGHBOURHOODS IN URBAN ONTARIO MR Rezai, LC Maclagan, H Guo, LR Donovan, JV Tu
337 WITHDRAWN
338 RATE OF CHANGE IN SERIAL MYOCARDIAL PERFUSION RESULTS IN PATIENTS AWAITING RENAL TRANSPLANTATION P Dehghani, L Zahorski, G Ollenberger, V Trivedi, B Prasad, A Lavoie, D Murthy Regina, Saskatchewan
According to the Canadian Society of Transplantation, high risk patients awaiting renal transplantation should be screened with myocardial perfusion scans. However, there is no guidance about the frequency of testing needed for these patients who remain on the list while awaiting transplantation. The objective of this study was to calculate the rate of change in serial myocardial perfusion scans in a heterogeneous population of patients awaiting renal transplantation. METHODS: This study retrospectively analyzed myocardial perfusion scan results of pre-renal transplantation patients identified from the Southern Saskatchewan Transplant Program Registry between 2005 to 2012. Perfusion scans were identified as abnormal if they had at least one of the following (1) fixed defects, (2) at least mild to moderate reversible defects, and (3) left ventricular function was ⬍40%. The rate of change from normal to abnormal scan results was calculated as the ratio between previously normal scans that became subsequently abnormal to total number of scans that were previously normal. RESULTS: Of 113 patients who underwent cardiac evaluation with myocardial perfusion scanning, 68 had at least one subsequent test. The average interval between subsequent perfusion scan was 1.84 ⫾0.97 years. The average rate of change from a previously normal scan becoming abnormal was calculated to be 30.7⫾3.3%. BACKGROUND:
Toronto, Ontario BACKGROUND: Awareness of cardiovascular disease (CVD) burden among visible minorities may improve CVD prevention strategies, particularly in Ontario’s multi-ethnic urban population. This ecological study investigated cardiovascular risk factor incidence and diseases across Ontario census tracts with a significant proportion of visible minorities. METHODS: Census profiles were extracted from the Statistics Canada 2006 Census. Visible minority census tracts were defined as those where ⬎ 30% of the population were identified as South Asian, Chinese, or Black. For each 2006 census tract, age and sex-standardized average annual diabetes/hypertension incidence rates were extracted from Ontario Health Insurance Plan claims (2006-2008), and acute myocardial infarction (AMI)/stroke hospitalization rates, from the Canadian Institute for Health Information discharge abstract database (2006-2010) using a 10 year washout period. Census tract smoking prevalence rates were estimated from a combined sample of Canadian Community Health Survey 2003, 2005, and 2007-08 cycles. To control for unstable rates due to small population areas, all rates were spatially smoothed across neighbouring areas. Negative binomial models were used for multivariate adjustment. RESULTS: Data were available from 2130 Ontario census tracts. There were 17 Black, 90 Chinese, 101 South Asian, and 5 mixed visible minority census tracts; all but one were in the Greater Toronto Area. South Asian and Black census tracts showed significantly higher rates of diabetes and hypertension compared to other census tracts (p⬍0.05). The lowest AMI/stroke hospitalization rates were found in Chinese census tracts. After adjusting for census tract diabetes and hypertension incidence rates, smoking rates, the proportions of immigrants and people with low education, AMI hospitalization rates in Chinese census tracts were 27% lower than Black, 30% lower than South Asian, and 23% lower than non-visible minority census tracts (p⬍0.001). In similar models, stroke hospitalization rates in Chinese census tracts were 18% lower than Black, 10% lower than South Asian, and 16% lower than non-visible minority census tracts (p⬍0.001). CONCLUSION: Chinese neighbourhoods in Ontario have the lowest rates of CVD risk factors and hospitalizations. South Asian and Black neighbourhoods have a significantly higher than average burden of hypertension and diabetes. Varying burdens of risk factors and CVD among visible minority populations may warrant targeted prevention initiatives tailored to the needs of these diverse populations.
Abstracts
fibrotic lung disease was readmitted with worsening respiratory symptoms on day 15. All patients, save the patient with advanced fibrosis, were NYHA class I or II at 30 days and no patient had more than mild paravalvular regurgitation. CONCLUSION: Rigorous patient screening as well as improvements in procedural guidance and device selection allows safe next day discharge in high risk operable patients undergoing contemporary TAVR. This will likely have significant impact on the acceptance of TAVR in a broader range of lower risk patients.
CONCLUSION: In a heterogeneous population of patients awaiting renal transplantation in Southern Saskatchewan, about 1 in 3 patients had a change in their subsequent perfusion scan from a normal result to an abnormal result. Updated data for the entire province of Saskatchewan will be available in October 2012.
339 CARDIOVASCULAR RISK FACTORS AND HOSPITALIZATIONS IN VISIBLE MINORITY NEIGHBOURHOODS IN URBAN ONTARIO MR Rezai, LC Maclagan, H Guo, LR Donovan, JV Tu
337 WITHDRAWN
338 RATE OF CHANGE IN SERIAL MYOCARDIAL PERFUSION RESULTS IN PATIENTS AWAITING RENAL TRANSPLANTATION P Dehghani, L Zahorski, G Ollenberger, V Trivedi, B Prasad, A Lavoie, D Murthy Regina, Saskatchewan
According to the Canadian Society of Transplantation, high risk patients awaiting renal transplantation should be screened with myocardial perfusion scans. However, there is no guidance about the frequency of testing needed for these patients who remain on the list while awaiting transplantation. The objective of this study was to calculate the rate of change in serial myocardial perfusion scans in a heterogeneous population of patients awaiting renal transplantation. METHODS: This study retrospectively analyzed myocardial perfusion scan results of pre-renal transplantation patients identified from the Southern Saskatchewan Transplant Program Registry between 2005 to 2012. Perfusion scans were identified as abnormal if they had at least one of the following (1) fixed defects, (2) at least mild to moderate reversible defects, and (3) left ventricular function was ⬍40%. The rate of change from normal to abnormal scan results was calculated as the ratio between previously normal scans that became subsequently abnormal to total number of scans that were previously normal. RESULTS: Of 113 patients who underwent cardiac evaluation with myocardial perfusion scanning, 68 had at least one subsequent test. The average interval between subsequent perfusion scan was 1.84 ⫾0.97 years. The average rate of change from a previously normal scan becoming abnormal was calculated to be 30.7⫾3.3%. BACKGROUND:
Toronto, Ontario BACKGROUND: Awareness of cardiovascular disease (CVD) burden among visible minorities may improve CVD prevention strategies, particularly in Ontario’s multi-ethnic urban population. This ecological study investigated cardiovascular risk factor incidence and diseases across Ontario census tracts with a significant proportion of visible minorities. METHODS: Census profiles were extracted from the Statistics Canada 2006 Census. Visible minority census tracts were defined as those where ⬎ 30% of the population were identified as South Asian, Chinese, or Black. For each 2006 census tract, age and sex-standardized average annual diabetes/hypertension incidence rates were extracted from Ontario Health Insurance Plan claims (2006-2008), and acute myocardial infarction (AMI)/stroke hospitalization rates, from the Canadian Institute for Health Information discharge abstract database (2006-2010) using a 10 year washout period. Census tract smoking prevalence rates were estimated from a combined sample of Canadian Community Health Survey 2003, 2005, and 2007-08 cycles. To control for unstable rates due to small population areas, all rates were spatially smoothed across neighbouring areas. Negative binomial models were used for multivariate adjustment. RESULTS: Data were available from 2130 Ontario census tracts. There were 17 Black, 90 Chinese, 101 South Asian, and 5 mixed visible minority census tracts; all but one were in the Greater Toronto Area. South Asian and Black census tracts showed significantly higher rates of diabetes and hypertension compared to other census tracts (p⬍0.05). The lowest AMI/stroke hospitalization rates were found in Chinese census tracts. After adjusting for census tract diabetes and hypertension incidence rates, smoking rates, the proportions of immigrants and people with low education, AMI hospitalization rates in Chinese census tracts were 27% lower than Black, 30% lower than South Asian, and 23% lower than non-visible minority census tracts (p⬍0.001). In similar models, stroke hospitalization rates in Chinese census tracts were 18% lower than Black, 10% lower than South Asian, and 16% lower than non-visible minority census tracts (p⬍0.001). CONCLUSION: Chinese neighbourhoods in Ontario have the lowest rates of CVD risk factors and hospitalizations. South Asian and Black neighbourhoods have a significantly higher than average burden of hypertension and diabetes. Varying burdens of risk factors and CVD among visible minority populations may warrant targeted prevention initiatives tailored to the needs of these diverse populations.