P1876Atrial fibrillation related symptoms and cardiovascular outcomes

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
P Krisai ◽  
S Blum ◽  
S Aeschbacher ◽  
J H Beer ◽  
G Moschovitis ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Heart Failure ◽  
Primary Endpoint ◽  
Cox Proportional Hazards ◽  
Cardiovascular Outcomes ◽  
Adverse Outcomes ◽  
Secondary Endpoint ◽  
Study Cohort ◽  
Inverse Association ◽  
The Impact

Abstract Background Comprehensive information on the impact of atrial fibrillation (AF)-related symptoms and quality of life (QoL) on adverse outcomes is sparse. Purpose We aimed to investigate whether AF-related symptoms and/or QoL are associated with cardiovascular outcomes in a large cohort of AF patients. Methods A total of 3902 participants with documented AF from two nationwide prospective cohort studies in Switzerland were included. Information on AF-related symptoms was assessed yearly by standardized questionnaires, QoL was quantified using a visual analog scale (0–100, with higher scores indicating better QoL). The primary endpoint was a composite of stroke and systemic embolism. The secondary endpoint was a composite of cardiovascular death, hospitalization for heart failure and myocardial infarction. We assessed associations using multivariable, time-updated Cox proportional-hazards models including age, sex, study cohort, history of heart failure, hypertension, diabetes, prior stroke, prior myocardial infarction, vascular disease and prior catheter ablation for AF as covariates. Results Mean age was 72 years, and 72% were male. The median QoL score was 75 points, and 2572 (66%) participants had AF-related symptoms. Symptomatic individuals were younger (71 vs 75 years) and had more often paroxysmal AF (29 vs 23%) (p for both <0.001). The most frequent symptoms were palpitations (42%), dyspnea (25%) and fatigue (18%). In multivariable, time-updated models, the hazard ratio (HR) was 1.24 (95% confidence intervals (CI) 0.72; 2.11, p=0.43) for the primary endpoint and HR 0.83 (95% CI 0.65; 1.06, p=0.14) for the secondary endpoint in symptomatic vs non-symptomatic individuals. There was a significant, inverse association for a 5-point increase in the QoL score with both the primary (HR 0.94 (95% CI 0.88; 0.99), p=0.04) and secondary (HR 0.91 (95% CI 0.88; 0.93), p<0.0001) endpoints. Conclusions AF-related symptoms are not associated with adverse cardiovascular events in AF patients. In contrast, QoL is inversely associated with to adverse cardiovascular outcomes.

scholarly journals Association of household income and adverse outcomes in patients with atrial fibrillation

Heart ◽  
2020 ◽  
Vol 106 (21) ◽  
pp. 1679-1685 ◽  
Author(s):  
Anna Rose LaRosa ◽  
J'Neka Claxton ◽  
Wesley T O'Neal ◽  
Pamela L Lutsey ◽  
Lin Y Chen ◽  
...  
Keyword(s):  
Heart Failure ◽  
Atrial Fibrillation ◽  
Household Income ◽  
Disease Risk ◽  
Cardiovascular Outcomes ◽  
Adverse Outcomes ◽  
Administrative Claims ◽  
Inverse Association ◽  
Annual Household Income ◽  
Income Category

BackgroundSocial determinants of health are relevant to cardiovascular outcomes but have had limited examination in atrial fibrillation (AF).ObjectivesThe purpose of this study was to examine the association of annual household income and cardiovascular outcomes in individuals with AF.MethodsWe analysed administrative claims for individuals with AF from 2009 to 2015 captured by a health claims database. We categorised estimates of annual household income as <$40 000; $40–$59 999; $60–$74 999; $75–$99 999; and ≥$100 000. Covariates included demographics, education, cardiovascular disease risk factors, comorbid conditions and anticoagulation. We examined event rates by income category and in multivariable-adjusted models in reference to the highest income category (≥$100 000).ResultsOur analysis included 336 736 individuals (age 72.7±11.9 years; 44.5% women; 82.6% white, 8.4% black, 7.0% Hispanic and 2.1% Asian) with AF followed for median (25th and 75th percentile) of 1.5 (95% CI 0.6 to 3.0) years. We observed an inverse association between income and heart failure and myocardial infarction (MI) with evidence of progressive risk across decreased income categories. Individuals with household income <$40 000 had the greatest risk for heart failure (HR 1.17; 95% CI 1.05 to 1.30) and MI (HR 1.18; 95% CI 0.98 to 1.41) compared with those with income ≥$100 000.ConclusionsWe identified an association between lower household income and adverse outcomes in a large cohort of individuals with AF. Our findings support consideration of income in the evaluation of cardiovascular risk in individuals with AF.

scholarly journals P6419Machine learning in critical care: the role of diabetes and age in acute coronary syndromes

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
E Cenko ◽  
M Van Der Schaar ◽  
J Yoon ◽  
Z Vasiljevic ◽  
S Kedev ◽  
...  
Keyword(s):  
Medical Treatment ◽  
Primary Endpoint ◽  
Left Ventricular ◽  
Adverse Outcomes ◽  
Secondary Endpoint ◽  
Coronary Syndrome ◽  
Increased Risk ◽  
All Cause Mortality ◽  
Patients With Diabetes ◽  
The Impact

Abstract Background Patients with diabetes and non-ST elevation acute coronary syndrome (NSTE-ACS) have an increased risk of mortality and adverse outcomes following percutaneous coronary intervention (PCI). Purpose We aimed to investigate the impact of early, within 24 hours PCI compared with only routine medical treatment on clinical outcomes in a large international cohort of patients with NSTE-ACS and diabetes. Methods We identified 1,250 patients with diabetes and NSTE-ACS from a registry-based population between October 2010 and April 2016. The primary endpoint was 30-day all-cause mortality. The secondary endpoint was the composite outcome of 30-day all-cause mortality and left ventricular dysfunction (ejection fraction <40%). We undertook analyses to explore the heterogeneity of treatment effects using meta-classification (MC) algorithms followed by propensity score matching and inverse-probability-of-treatment weighting (IPTW) from a landmark of 24 hours from hospitalization. Results Of 1,250 NSTE-ACS first-day survivors with diabetes (median age 67 years; 59%, men), 470 (37.6%) received early PCI and 780 routine medical treatment. The overall 30-day all-cause mortality rates were higher in the routine medical treatment than the early PCI group (6.3% vs. 2.5%). The prediction results of the MC algorithms accounted for only one interaction term that was statistically significant: age ≥65 years. After propensity-matched analysis as well as IPTW, early PCI was associated with reduced 30-day all-cause mortality in the older age (OR: 0.35; 95% CI: 0.14 to 0.92 and 0.43; 95% CI: 0.21 to 0.86, respectively), whereas younger age had no association with the primary endpoint. Similar results were also obtained for the secondary endpoint. Conclusions Among patients with diabetes hospitalized for NSTE-ACS, an early, within 24 hours, PCI strategy is associated with reduced odds of 30-day mortality only for patients aged 65 years or over. MC algorithms provide accurate identification of treatment effect modifiers.

scholarly journals Treatment of Heart Failure Patients with Anxiolytics Is Associated with Adverse Outcomes, with and without Depression

2020 ◽  
Vol 9 (12) ◽  
pp. 3967
Author(s):  
Donna R. Zwas ◽  
Andre Keren ◽  
Offer Amir ◽  
Israel Gotsman
Keyword(s):  
Heart Failure ◽  
Real World ◽  
Nyha Class ◽  
Cardiac Risk ◽  
Adverse Outcomes ◽  
Study Cohort ◽  
Risk Of Mortality ◽  
One Year ◽  
Untreated Individuals ◽  
The Impact

Background: Few studies have evaluated the effect of pharmacologic treatment of anxiety on outcomes in heart failure (HF) patients. This study examined the impact of treatment with anxiolytics on clinical outcomes in a real-world sample of HF patients with and without depression. Methods: Patients diagnosed with HF were retrieved from a large HMO database. Patients prescribed anxiolytic medication and patients diagnosed with depression and/or prescribed anti-depressant medication were followed for cardiac-related hospitalizations and death. Results: The study cohort included 6293 HF patients. Treatment with anxiolytics was associated with decreased one-year survival compared to untreated individuals, with a greater reduction in survival seen in patients diagnosed with depression and/or treated with anti-depressants. Multi-variable analysis adjusting for age, sex, NYHA class, cardiac risk factors and laboratory parameters found that treatment with anxiolytics remained a predictor of mortality even when adjusting for depression. Depression combined with anxiolytic treatment was predictive of increased mortality, and treatment with anxiolytics alone, depression alone and anxiolytic treatment together with depression were each associated with an increased hazard ratio for a composite outcome of death and hospitalization. Conclusions: In this real-world study of HF patients, both treatment with anxiolytics and depression were associated with increased mortality, and anxiolytic therapy remained a predictor of mortality when adjusting for depression. Treatment of anxiety together with depression was associated with the highest risk of mortality. Safe and effective treatment for anxiety and depression is warranted to alleviate the detrimental impact of these disorders on quality and of life and adverse events.

Abstract P347: The Impact of the Length of the Follow-up on the the Strengths of the Associations Between Cardiovascular Risk Factors and Future Myocardial Infarction, Stroke and Heart Failure

Circulation ◽  
2012 ◽  
Vol 125 (suppl_10) ◽  
Author(s):  
Lars Lind ◽  
Erik Ingelsson ◽  
Johan Sundström ◽  
Johan ärnlöv
Keyword(s):  
Risk Factors ◽  
Myocardial Infarction ◽  
Heart Failure ◽  
Cardiovascular Risk ◽  
Cardiovascular Risk Factors ◽  
Cardiovascular Outcomes ◽  
Rapid Decline ◽  
The Impact ◽  
Over Time

Objective: The aim of this study was to investigate how the length of the follow-up period influences the strength of the associations between major cardiovascular risk factors and different cardiovascular outcomes (myocardial infarction [MI], stroke and heart failure). Methods: We examined 1826 men aged 50 regarding cardiovascular risk factors in 1970-74. The follow-up time was 33 years. The hazard ratio (HR) was calculated yearly for each risk factor and outcome. During follow-up, 571 cases of MI, 381 cases of stroke and 384 cases of heart failure occurred. Results: Two major patterns were found regarding influence of the follow-up time on the associations between risk factors and the different cardiovascular outcomes. First, a gradual decline in the HR over time was seen for blood pressure in relation to all three outcomes, with the most rapid decline for heart failure and stroke. This pattern was also seen for BMI in relation to MI and heart failure, and for smoking regarding MI and stroke. Second, we observed a gradual increase in HRs to a maximum at 20-25 years, and thereafter a slight decline. This pattern was seen for the apoB/A1 ratio, HDL, and triglycerides, mainly in relation to MI and heart failure. Conclusion: The length of follow-up influenced the associations between traditional risk factors and cardiovascular outcomes in different ways. The collective influence of the risk factors did however show a substantial decline in discrimination over time for the outcomes stroke and heart failure, but not regarding myocardial infarction.

3080Postsystolic shortening yields novel and independent prognostic information on cardiovascular events and mortality in patients with type 2 diabetes

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
P Brainin ◽  
M T Jensen ◽  
T Biering-Soerensen ◽  
R Moegelvang ◽  
T Fritz-Hansen ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Heart Failure ◽  
Type 2 Diabetes ◽  
Primary Endpoint ◽  
Cardiovascular Events ◽  
Cardiac Cycle ◽  
Secondary Endpoint ◽  
Maximum Strain ◽  
Prognostic Information

Abstract Background Cardiovascular disease is the leading cause of death and disability in patients with type 2 diabetes. We aimed to evaluate if postsystolic shortening, a marker of impaired myocardial function, may provide prognostic information on cardiovascular events and mortality in patients with type 2 diabetes. Method We prospectively studied 783 patients with diabetes type 2 (63% male, age 65 [58, 70] years; HbA1c 54 [48, 65] mmol/mol; diabetes duration 11 [6, 17] years) who underwent speckle tracking echocardiography. Patients with left bundle branch block, atrial fibrillation and a history of heart failure and myocardial infarction were excluded. The primary endpoint was the composite of incident heart failure, myocardial infarction and cardiovascular death. The secondary endpoint was all-cause death. We defined the postsystolic index (PSI) as: [100x (maximum strain in cardiac cycle – peak systolic strain)/ (maximum strain in cardiac cycle)]. Results During the median follow-up of 4.9 years [4.2, 5.3], 87 patients (11%) reached the primary endpoint and 80 (10%) died from any cause. Each 1% increase in the PSI was associated with the primary (HR 1.07 95% CI 1.02–1.13, P<0.001, Fig A) and secondary endpoint (HR 1.09 95% CI 1.04–1.14, P<0.001, Fig B). After adjusting for age, sex, hypertension, smoking, duration of diabetes, cholesterol, eGFR, left ventricular ejection fraction and mass index, E/A-ratio, deceleration time and left atrial volume index, the PSI remained an independent predictor of both endpoints; primary (HR 1.07 per 1% increase 95% CI 1.01–1.14, P=0.028) and secondary endpoint (HR 1.07 per 1% increase, 95% CI 1.01–1.14, P=0.022). PSI and the endpoints Conclusion In patients with type 2 diabetes, assessment of PSI yields novel and independent prognostic information on cardiovascular events and mortality. Hence, PSI may offer guidance on risk stratification in patients with type 2 diabetes.

Abstract 17033: Comparative Effectiveness of Pulmonary Vascular Resistance, Capacitance, and Resistance-Capacitance Time in the ESCAPE Trial

Circulation ◽  
2018 ◽  
Vol 138 (Suppl_1) ◽  
Author(s):  
Nora Tolbert ◽  
Kenneth Bilchick ◽  
Alex Parker ◽  
James Bergin ◽  
Sula Mazimba
Keyword(s):  
Heart Failure ◽  
Pulmonary Vascular Resistance ◽  
Vascular Resistance ◽  
Proportional Hazards ◽  
Left Ventricular ◽  
Cox Proportional Hazards ◽  
Adverse Outcomes ◽  
Escape Trial ◽  
The Impact

Introduction: Right ventricular (RV) function portends adverse outcomes in heart failure (HF). Markers of RV load include pulmonary vascular resistance (PVR), pulmonary capacitance (PC), and the Resistance-Capacitance Time (RCT), a product of PVR and PC. The impact of changes in these indices during hemodynamic optimization is unknown. Hypothesis: PVR, PC and RCT after therapy and changes in these indices during therapy would be differentially associated with outcomes in the Evaluation Study of Congestive Heart Failure and Pulmonary Artery Catheterization (PAC) Effectiveness (ESCAPE) trial. Methods: Using Cox proportional hazards regression and Kaplan Meier survival analysis, we analyzed associations of PVR, PC, and RCT indices with the outcomes of death, transplantation, and left ventricular assist device (DTxLVAD) and a combined rehospitalization outcome (DTxLVADH) during 6 months follow-up. Results: Among 138 patients (age 56.9 ± 13.6 years, 30.4% female), PVR at the end of therapy was associated with increased DTxLVAD (HR 1.28 per 1 W.U. increase; 95% CI 1.11-1.47; P=0.0007), and final PC was associated with a decreased DTxLVAD (HR 0.60 per unit PC increase; 95% CI 0.41-0.87; P=0.0007). The final RCT was not associated with DTxLVAD (HR 0.70; CI 0.48-1.03; P=0.07). Changes in PVR during therapy (median -0.38 W.U.; IQR -1.57 to 0.62 W.U.) were associated with increased rehospitalization (DTxLVADH) during follow-up (HR 1.13; 95% CI 1.02-1.25; P=0.02). In a binary analysis, patients with an increase in PVR > 0.1 W.U. during therapy had a trend for more DTxLVADH events (log-rank P=0.058; Figure). Changes in PVR and PC during therapy were not associated with survival. Conclusions: Final PVR and PAC measurements but not changes in these parameters during therapy were associated with survival, although changes in PVR during therapy were associated with rehospitalization. More studies are needed to understand the utility of RV load parameters in HF therapy.

scholarly journals Clinical significance of Q waves in ischemic cardiomyopathy

2021 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
E Rodenas Alesina ◽  
P Jordan ◽  
L Herrador ◽  
C Espinet-Coll ◽  
N Pizzi ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Heart Failure ◽  
Primary Endpoint ◽  
Ischemic Cardiomyopathy ◽  
Cox Regression ◽  
Cox Model ◽  
Cardiovascular Death ◽  
P Value ◽  
Heart Failure Hospitalization ◽  
Total Cohort

Abstract Funding Acknowledgements Type of funding sources: Public hospital(s). Main funding source(s): CIBER-CV AIMS The scintigraphic translation of Q waves in patients with ischemic cardiomyopathy and LVEF &lt; 40% has not yet been assessed. The aim of this study was to explore the relationship between Q waves and necrotic tissue and to analyze their impact in prognosis. METHODS AND RESULTS A retrospective study enrolling 487 consecutive patients (67,0 [57,4 – 75,4] years), with ischemic cardiomyopathy, LVEF &lt;40% and narrow QRS who underwent stress-rest SPECT was conducted. Patients with Q waves (320 patients [65,7%]) had less comorbidity and ischemia, but more necrosis. Q waves correlated poorly with lack of viability (AUC = 0,63) and were independently associated with the subendocardial extent of the necrosis. After a follow-up of 5,07 years, the primary outcome (cardiovascular death, heart failure hospitalization or myocardial infarction) occurred in 192 (39,4%) patients, without differences between groups in multivariate analysis. After accounting for non-cardiovascular death as a competitive risk, the interaction between &gt;10% of ischemia and revascularization remained in Cox model both in the total cohort (aHR= 0,46 [0,24 – 0,86]), and in patients with Q waves (aHR = 0,27 [0,11–0,69]). CONCLUSION Patients with ischemic cardiomyopathy with Q waves have larger subendocardial scarring and more transmural necrosis, although correlation between Q waves and transmural scarring is poor. Revascularization if &gt;10% ischemia is present is associated with a better prognosis. Ischemia burden should be assessed and accordingly treated in these patients, and no differences in management should be made in the presence of Q waves. Table 1. Cox proportional hazards model Total cohort (N = 471) Patients with Q waves (N = 315) aHR p-value 95% CI aHR p-value 95% CI Age (per year) 1,02 0,007 1,01 - 1,04 n.s. Diabetes mellitus 1,35 0,047 1,00 - 1,81 1,54 0,016 1,09 - 2,20 eGFR &lt; 60 ml/min 1,59 0,005 1,15 - 2,21 1,96 &lt;0,001 1,36 - 2,82 Previous HF hospitalization 1,71 0,002 1,23 - 2,38 1,76 0,007 1,17 - 2,64 Previous PCI 1,32 0,069 0,98 - 1,78 n.s. Previous CABG n.s. 1,77 0,009 1,15 - 2,72 Angina or dyspnea 1,68 0,001 1,24 - 2,28 1,71 0,004 1,19 - 2,46 Indexed TDV (per quartile) 1,16 0,047 1,02 - 1,33 n.s. Revascularization*ischemia &gt; 10% 0,46 0,015 0,24 - 0,86 0,27 0,006 0,11 - 0,69 Cox regression for the primary endpoint (cardiovascular death, heart failure hospitalization or myocardial infarction), accounting for non-cardiovascular death as a competitive risk. Abstract Figure. Survival for the primary endpoint

Primary care physician services and the frequency of comorbidities in patients with acute myocardial infarction

2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
R King ◽  
D Giedrimiene
Keyword(s):  
Myocardial Infarction ◽  
Primary Care ◽  
Acute Myocardial Infarction ◽  
Primary Care Physician ◽  
Care Physician ◽  
Adverse Outcomes ◽  
Coronary Syndrome ◽  
Number Of Patients ◽  
Significant Difference ◽  
The Impact

Abstract Funding Acknowledgements Type of funding sources: None. Background The management of patients with multiple comorbidities represents a significant burden on healthcare each year. Despite requiring regular medical care to treat chronic conditions, a large number of these patients may not receive proper care. Significant disparities have been identified in patients with multiple comorbidities and those who experience acute coronary syndrome or acute myocardial infarction (AMI). Only limited data exists to identify the impact of comorbidities and utilization of primary care physician (PCP) services on the development of adverse outcomes, such as AMI. Purpose The primary objective was to analyze how PCP services utilization can be associated with comorbidities in patients who experienced an AMI. Methods This study was based on retrospective data analysis which included 250 patients admitted to the Hartford Hospital Emergency Department (ED) for an AMI. Out of these, 27 patients were excluded due to missing documentation. Collected data included age, gender, medications and recorded comorbidities, such as hypertension, hyperlipidemia, diabetes mellitus (DM), chronic kidney disease (CKD) and previous arrhythmia. Each patient was assessed regarding utilization of PCP services. Statistical analysis was performed in order to identify differences between patients with documented PCP services and those without by using the Chi-square test. Results The records allowed for identification of documented PCP services for 172 out of 223 (77.1%) patients. The most common comorbidities were hypertension and hyperlipidemia: in 165 (74.0%) and 157 (70.4%) cases respectively. The most frequent comorbidity was hypertension: 137 out of 172 (79.7%) in pts with PCP vs 28 out of 51 (54.9%) without PCP, and significantly more often in patients with PCP, p&lt; 0.001. Hyperlipidemia was the second most frequent comorbidity: in 130 out of 172 (75.6%) vs 27 out of 51 (52.9%) accordingly, and also significantly more often (p&lt; 0.002) in patients with PCP services. The number of comorbidities ranged from 0-5, including 32 (14.3%) patients without comorbidities: 16 (9.3%) with a PCP and 16 (31.4%) without PCP services. The majority of patients - 108 (48.5% of 223), had 2-3 documented comorbidities: 89 (51.8%) had two and 19 (34.6%) had three. The remaining 40 (17.9%) patients had 4-5 comorbidities: 37 (21.5%) of them with a PCP and 3 (10.3%) without, with a significant difference (p &lt; 0.001) found for patients with a higher number of comorbidities who utilized PCP services. Conclusions Our study shows that the majority of patients who presented with an AMI had one or more comorbidities. Furthermore, patients who did not utilize PCP services had fewer identified comorbidities. This suggests that there may be a significant number of patients who experienced AMI with undiagnosed comorbidities due to not having access to PCP services.

Abstract P069: Heat, Heat Waves and Hospital Admissions in Indianapolis, Indiana

Circulation ◽  
2017 ◽  
Vol 135 (suppl_1) ◽  
Author(s):  
Yi Wang
Keyword(s):  
Myocardial Infarction ◽  
Heart Failure ◽  
Relative Risk ◽  
Heat Wave ◽  
Hospital Admissions ◽  
Heat Waves ◽  
Global Climate ◽  
Extreme Heat ◽  
Apparent Temperature ◽  
The Impact

Background: The association between heat and hospital admissions is well studied, but in Indiana where the regulatory agencies cites lack of evidence for global climate change, local evidence of such an association is critical for Indiana to mitigate the impact of increasing heat. Methods: Using a distributed-lag non-linear model, we studied the effects of moderate (31.7 °C or 90 th percentile of daily mean apparent temperature (AT)), severe (33.5 °C or 95 th percentile of daily mean apparent temperature (AT)) and extreme (36.4 °C or 99 th percentile of AT) heat on hospital admissions (June-August 2007-2012) for cardiovascular (myocardial infarction, myocardial infarction, heart failure) and heat-related diseases in Indianapolis, Indiana located in Marion County. We also examined the added effects of moderate heat waves (AT above the 90 th percentile lasting 2-6 days), severe heat waves (AT above the 95 th percentile lasting 2-6 days) and extreme heat waves (AT above the 99 th percentile lasting 2-6 days). In sensitivity analysis, we tested robustness of our results to 1) different temperature and lag structures and 2) temperature metrics (daily min, max and diurnal temperature range). Results: The relative risks of moderate heat, relative to 29.2°C (75 th percentile of AT), on admissions for cardiovascular disease (CVD), myocardial infarction (MI), heart failure (HF), and heat-related diseases (HD) were 0.98 (0.67, 1.44), 6.28 (1.48, 26.6), 1.38 (0.81, 2.36) and 1.73 (0.58, 5.11). The relative risk of severe heat on admissions for CVD, MI, HF, and HD were 0.93 (0.60, 1.43), 4.46 (0.85, 23.4), 1.30 (0.72, 2.34) and 2.14 (0.43, 10.7). The relative risk of extreme heat were 0.79 (0.26, 2.39), 0.11 (0.087, 1.32), 0.68 (0.18, 2.61), and 0.32 (0.005, 19.5). We also observed statistically significant added effects of moderate heat waves lasting 4 or 6 days on hospital admission for MI and HD and extreme heat waves lasting 4 days on hospital admissions for HD. Results were strengthened for people older than 65. Conclusions: Moderate heat wave lasting 4-6 days were associated with increased hospital admissions for MI and HD diseases and extreme heat wave lasting 4 days were associated with increased admissions for HD.

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