Utility of shock index in 24,636 patients presenting with acute coronary syndrome.

BACKGROUND: Shock index is a bedside reflection of integrated response of the cardiovascular and nervous systems. We aimed to evaluate the utility of shock index (heart rate/systolic blood pressure) in patients presenting with acute coronary syndrome (ACS). METHODS: We analyzed pooled data from seven Arabian Gulf registries; these ACS registries were carried out in seven countries (Qatar, Bahrain, Kuwait, UAE, Saudi Arabia, Oman and Yemen) between 2005 and 2017. A standard uniform coding strategy was used to recode each database using each registry protocol and clinical research form. Patients were categorized into two groups based on their initial shock index (low vs. high shock index). Optimal shock index cutoff was determined according to the receiver operating characteristic curve (ROC). Primary outcome was hospital mortality. RESULTS: A total of 24,636 ACS patients met the inclusion criteria with a mean age 57±13 years. Based on ROC analysis, the optimal shock index was 0.80 (83.5% had shock index <0.80 and 16.5% had shock index ≥0.80). In patients with high shock index, 55% had ST-elevation myocardial infarction and 45% had non-ST-elevation myocardial infarction. Patients with high shock index were more likely to have diabetes mellitus, late presentation, door to electrocardiogram >10 min, symptom to Emergency Department > 3 h, anterior myocardial infarction, impaired left ventricular function, no reperfusion post-therapy, recurrent ischemia/myocardial infarction, tachyarrhythmia and stroke. However, high shock index was associated significantly with less chest pain, less thrombolytic therapy and less primary percutaneous coronary intervention. Shock index correlated significantly with pulse pressure (r= -0.52), mean arterial pressure (r= -0.48), Global Registry of Acute Coronary Events score (r =0.41) and Thrombolysis In Myocardial Infarction simple risk index (r= -0.59). Shock index ≥0.80 predicted mortality in ACS with 49% sensitivity, 85% specificity, 97.6% negative predictive value and 0.6 negative likelihood ratio. Multivariate regression analysis showed that shock index was an independent predictor for in-hospital mortality (adjusted odds ratio (aOR) 3.40, p<0.001), heart failure (aOR 1.67, p<0.001) and cardiogenic shock (aOR 3.70, p<0.001). CONCLUSIONS: Although shock index is the least accurate of the ones tested, its simplicity may argue in favor of its use for early risk stratification in patients with ACS. The utility of shock index is equally good for ST-elevation myocardial infarction and non-ST-elevation acute coronary syndrome. High shock index identifies patients at increased risk of in-hospital mortality and urges physicians in the Emergency Department to use aggressive management.

Impact of Angiotensin Converting Enzyme Inhibitors/Angiotensin Receptors Blockers on Mortality in Acute Heart Failure Patients with Left Ventricular Systolic Dysfunction in the Middle East: Observations from the Gulf Acute Heart Failure Registry (Gulf CARE).

AIMS: To evaluate the impact of Angiotensin-Converting Enzyme Inhibitors (ACEIs)/ Angiotensin Receptors Blockers (ARBs) on in-hospital, 3- and 12-month all-cause mortality in Acute Heart Failure (AHF) patients with left ventricular systolic dysfunction in 7 countries of the Middle East. METHODS AND RESULTS: Data was analysed from 2,683 consecutive patients admitted with AHF and Left Ventricular Ejection Fraction (LVEF) (<40%) from 47 hospitals from February to November 2012. Analyses were evaluated using univariate and multivariate statistics. The overall mean age of the cohort was 58±15, 72% (n=1,937) were males, 62% (n=1,651) had coronary artery disease, 57% (n=1,539) were hypertensives and 47% (n=1,268) had diabetes. Overall cumulative mortality at inhospital, 3- and 12-month follow-up was 5.8% (n=155), 12.6% (n=338) and 20.4% (n=548), respectively. Adjusting for demographic and clinical characteristics as well as medication in a multivariate logistic regression model, ACEIs were associated with lower risk of in-hospital mortality (adjusted odds ratio (aOR), 0.48; 95% Confidence Interval (CI): 0.25 to 0.94; p=0.031). At 3-month follow-up, both ACEIs (aOR, 0.64; 95% CI: 0.43 to 0.95; p=0.025) and ARBs (aOR, 0.34; 95% CI: 0.18 to 0.62; p<0.001) were associated with lower risk of mortality. Additionally, at 12-month follow-up, those prescribed ACEIs (aOR, 0.71; 95% CI: 0.53 to 0.96; p=0.027) and ARBs (aOR, 0.47; 95% CI: 0.31 to 0.71; p<0.001) were still associated with lower risk of mortality. CONCLUSION: ACEIs and ARBs treatments were associated with lower mortality risk during admission and up to 12-month of follow-up in Middle East AHF patients with left ventricular systolic dysfunction.

Implications of a History of Syncope in Patients Hospitalized With Heart Failure.

We assessed the frequency and implications of a history of syncope of up to 1 year prior to hospitalization with acute heart failure (AHF) between February and November 2012. Data were collected for 5005 patients hospitalized with AHF and analyzed and compared according to the absence/presence of a history of syncope (group 1 vs group 2). Prior syncope among patients with heart failure was 5.3%. Age, gender, hypertension, atrial fibrillation, bundle branch block, left ventricular ejection fraction (LVEF), and obstructed coronary vessels were comparable in the 2 groups. Group 2 patients were more likely to smoke or have diabetes mellitus, stroke, and cardiac arrest. Group 2 patients frequently required aggressive treatment and had more worse in-hospital and 1-year outcomes compared to group 1. After adjustment for age, sex, ethnicity, and LVEF, multivariate regression analysis showed that history of syncope predicted in-hospital mortality (odds ratio: 2.61; 95% confidence interval: 1.707-4.002). History of syncope during the year prior to the index admission with AHF is a marker of worse outcomes regardless of patient age and LVEF. Further studies are required to confirm this observation and its clinical implications.

Systolic Blood Pressure on Admission and Mortality in Patients Hospitalized With Acute Heart Failure: Observations From the Gulf Acute Heart Failure Registry.

We investigated the role of systolic blood pressure (SBP) in relation to in-hospital and postdischarge mortality in patients admitted with acute heart failure (AHF). The SBP of 4848 patients aged ≥18 years admitted with AHF was categorized into 5 groups: ≤90, 91 to 119, 120 to 139, 140 to 161, and >161 mm Hg. After adjusting for several confounders, multivariate logistic regression models showed that admission SBP was a significant predictor of mortality among both patients with preserved left ventricular function (defined as left ventricular ejection fraction [LVEF] ≥40%) and patients with left ventricular dysfunction (LVEF <40%). The adjusted odds ratios of in-hospital, 3-month, and 1-year mortality in the lowest SBP groups were 7.06 (95% confidence interval [CI]: 3.28-15.20; P < .001), 2.59 (95% CI: 1.35-4.96; P = .004), and 3.10 (95% CI: 2.04-4.72; P < .001) times the odds in the highest admission group (SBP > 161 mm Hg), respectively. We conclude that low admission SBP is an independent predictor of mortality in patients with AHF. The higher the admission SBP, the better the prognosis, regardless of age or LVEF.

Comparison of Indian subcontinent and Middle East acute heart failure patients: Results from the Gulf Acute Heart Failure Registry.

OBJECTIVE: To compare Middle East Arabs and Indian subcontinent acute heart failure (AHF) patients. METHODS: AHF patients admitted from February 14, 2012 to November 14, 2012 in 47 hospitals among 7 Middle East countries. RESULTS: The Middle Eastern Arab group (4157) was older (60 vs. 54 years), with high prevalence of coronary artery disease (48% vs. 37%), valvular heart disease (14% vs. 7%), atrial fibrillation (12% vs. 7%), and khat chewing (21% vs. 1%). Indian subcontinent patients (382) were more likely to be smokers (36% vs. 21%), alcohol consumers (11% vs. 2%), diabetic (56% vs. 49%) with high prevalence of AHF with reduced ejection fraction (76% vs. 65%), and with acute coronary syndrome (46% vs. 26%). In-hospital mortality was 6.5% with no difference, but 3-month and 12-month mortalities were significantly high among Middle East Arabs, (13.7% vs. 7.6%) and (22.8% vs. 17.1%), respectively. CONCLUSIONS: AHF patients from this region are a decade younger than Western patients with high prevalence of ischemic heart disease, diabetes mellitus, and AHF with reduced ejection fraction. There is an urgent need to control risk factors among both groups, as well as the need for setting up heart failure clinics for better postdischarge management.

Sex Differences in Patients With Acute Decompensated Heart Failure: Insights From the Heart Function Assessment Registry Trial in Saudi Arabia.

We assessed sex-specific differences in clinical features and outcomes of patients with acute heart failure (AHF). The Heart function Assessment Registry Trial in Saudi Arabia (HEARTS), a prospective registry, enrolled 2609 patients with AHF (34.2% women) between 2009 and 2010. Women were older and more likely to have risk factors for atherosclerosis, history of heart failure (HF), and rheumatic heart and valve disease. Ischemic heart disease was the prime cause for HF in men and women but more so in men (P < .001). Women had higher rates of hypertensive heart disease and primary valve disease (P < .001, for both comparisons). Men were more likely to have severe left ventricular systolic dysfunction. On discharge, a higher use of angiotensin-converting enzyme inhibitors, ß-blockers, and aldosterone inhibitors was observed in men (P < .001 for all comparisons). Apart from higher atrial fibrillation in women and higher ventricular arrhythmias in men, no differences were observed in hospital outcomes. The overall survival did not differ between men and women (hazard ratio: 1.0, 95% confidence interval: 0.8-1.2, P = .981). Men and women with AHF differ significantly in baseline clinical characteristics and management but not in adverse outcomes.

Heart failure in low- and middle-income countries: background, rationale, and design of the INTERnational Congestive Heart Failure Study (INTER-CHF).

BACKGROUND: Although heart failure (HF) has been referred to as a global epidemic, most HF information comes from high-income countries, with little information about low-income countries (LIC) and middle-income countries (MIC) in Africa, Asia, the Middle East, and South America, which make up the majority of the world's population. METHODS: The INTERnational Congestive Heart Failure Study is a cohort study of 5,813 HF patients enrolled in 108 centers in 16 LIC and MIC. At baseline, data were recorded on sociodemographic and clinical risk factors, HF etiology, laboratory variables, management, and barriers to evidence-based HF care at the patient, physician, and system levels. We sought to enroll consecutive and consenting patients ≥18 years of age with a clinical diagnosis of HF seen in outpatient clinics (2/3 of patients) or inpatient hospital wards (1/3 of patients). Patients were followed up at 6 and 12 months post-enrollment to record clinical status, treatments, and clinical outcomes such as death and hospitalizations. In the 5,813 enrolled HF patients, the mean age was 59 ± 15 years, 40% were female, 62% had a history of hypertension, 30% had diabetes, 21% had prior myocardial infarction, 64% were recruited from outpatient clinics, 36% lived in rural areas, and 29% had HF with preserved left ventricular ejection fraction. CONCLUSIONS: This unique HF registry aims to systematically gather information on sociodemographic and clinical risk factors, etiologies, treatments, barriers to evidence-based care, and outcomes of HF in LIC and MIC. This information will help improve the management of HF globally.

Rationale, Design, Methodology and Hospital Characteristics of the First Gulf Acute Heart Failure Registry (Gulf CARE).

BACKGROUND: There is paucity of data on heart failure (HF) in the Gulf Middle East. The present paper describes the rationale, design, methodology and hospital characteristics of the first Gulf acute heart failure registry (Gulf CARE). MATERIALS AND METHODS: Gulf CARE is a prospective, multicenter, multinational registry of patients >18 year of age admitted with diagnosis of acute HF (AHF). The data collected included demographics, clinical characteristics, etiology, precipitating factors, management and outcomes of patients admitted with AHF. In addition, data about hospital readmission rates, procedures and mortality at 3 months and 1-year follow-up were recorded. Hospital characteristics and care provider details were collected. Data were entered in a dedicated website using an electronic case record form. RESULTS: A total of 5005 consecutive patients were enrolled from February 14, 2012 to November 13, 2012. Forty-seven hospitals in 7 Gulf States (Oman, Saudi Arabia, Yemen, Kuwait, United Gulf Emirates, Qatar and Bahrain) participated in the project. The majority of hospitals were community hospitals (46%; 22/47) followed by non-University teaching (32%; 15/47 and University hospitals (17%). Most of the hospitals had intensive or coronary care unit facilities (93%; 44/47) with 59% (28/47) having catheterization laboratory facilities. However, only 29% (14/47) had a dedicated HF clinic facility. Most patients (71%) were cared for by a cardiologist. CONCLUSIONS: Gulf CARE is the first prospective registry of AHF in the Middle East, intending to provide a unique insight into the demographics, etiology, management and outcomes of AHF in the Middle East. HF management in the Middle East is predominantly provided by cardiologists. The data obtained from this registry will help the local clinicians to identify the deficiencies in HF management as well as provide a platform to implement evidence based preventive and treatment strategies to reduce the burden of HF in this region.

Absence of obesity paradox in Saudi patients admitted with acute coronary syndromes: insights from SPACE registry.

BACKGROUND AND OBJECTIVES: To describe the distribution of body mass index (BMI) and its relationship with clinical features, management, and in-hospital outcomes of patients admitted with acute coronary syndromes (ACS). DESIGN AND SETTINGS: The Saudi Project for Assessment of Coronary Events is a prospective registry. ACS patients admitted to 17 hospitals from December 2005-2007 were included in this study. METHODS: BMI was available for 3469 patients (68.6%) admitted with ACS and categorized into 4 groups: normal weight, overweight, obese, and morbidly obese. RESULTS: Of patients admitted with ACS, 72% were either overweight or obese. A high prevalence of diabetes (57%), hypertension (56.6%), dyslipidemia (42%), and smoking (32.4%) was reported. Increasing BMI was significantly associated with diabetes, hypertension, and hyperlipidemia. Overweight and obese patients were significantly younger than the normal-weight group (P=.006). However, normal-weight patients were more likely to be smokers and had 3-vessel coronary artery disease, worse left ventricular dysfunction, and ST elevation myocardial infarction. Glycoprotein IIb-IIIa antagonists were used significantly more in overweight, obese, and morbidly obese ACS patients than in normal-weight patients (P≤.001). Coronary angiography and percutaneous intervention were reported more in overweight and obese patients than in normal-weight patients (P≤.001). In-hospital outcomes were not significantly different among the BMI categories. CONCLUSION: High BMI is prevalent among Saudi patients with ACS. BMI was not an independent factor for in-hospital outcomes. In contrast with previous reports, high BMI was not associated with improved outcomes, indicating the absence of obesity paradox observed in other studies.

Quality of care in primary percutaneous coronary intervention for acute ST-segment -elevation myocardial infarction: Gulf RACE 2 experience.

BACKGROUND AND OBJECTIVES: Primary percutaneous coronary intervention (pPCI) has been recognized as an effective management strategy for acute ST-segment-elevation myocardial infarction (STEMI). However, there is no first-hand information regarding the quality of pPCI procedures in the Arabian Gulf countries. This study aims to explore the quality of pPCI practice. DESIGN AND SETTINGS: The Gulf Race II was designed as a prospective, multinational, multicentre registry of acute coronary events, focusing on the epidemiology, management practices, and outcomes of patients with acute coronary syndrome. The study recruited consecutive patients aged 18 years and above from 65 hospitals in 6 adjacent Middle Eastern countries (Bahrain, Saudi Arabia, Qatar, Oman, United Arab Emirates, and Yemen). PATIENTS AND METHODS: We used data from the Gulf Registry of Acute Coronary Events (Gulf RACE 2). We analyzed data on patients who received pPCI to assess the guidelines-supported performance measure of door-to-balloon (D2B).

Gender inequality in the clinical outcomes of equally treated acute coronary syndrome patients in Saudi Arabia.

BACKGROUND AND OBJECTIVES: Gender associations with acute coronary syndrome (ACS), remain inconsistent. Gender-specific data in the Saudi Project for Assessment of Coronary Events registry, launched in December 2005 and currently with 17 participating hospitals, were explored. DESIGN AND SETTINGS: A prospective multicenter study of patient with ACS in secondary and tertiary care centers in Saudi Arabia were included in this analysis. PATIENTS AND METHODS: Patients enrolled from December 2005 until December 2007 included those presented to participating hospitals or transferred from non-registry hospitals. Summarized data were analyzed. RESULTS: Of 5061 patients, 1142 (23%) were women. Women were more frequently diagnosed with non ST-segment elevation myocardial infarction (NSTEMI [43%]) than unstable angina (UA [29%]) or ST-segment elevation myocardial infarction (STEMI [29%]). More men had STEMI (42%) than NSTEMI (37%) or UA (22%). Men were younger than women (57 vs 63 years) who had more diabetes, hypertension, and hyperlipidemia. More men had a history of coronary artery disease. More women received angiotensin receptor blockers (ARB) and fewer had percutaneous coronary intervention (PCI). Gender differences in the subset of STEMI patients were similar to those in the entire cohort. However, gender differences in the subset of STEMI showed fewer women given b-blockers, and an insignificant PCI difference between genders. Thrombolysis rates between genders were similar. Overall, in-hospital mortality was significantly worse for women and, by ACS type, was significantly greater in women for STEMI and NSTEMI. However, after age adjustment there was no difference in mortality between men and women in patients with NSTEMI. The multivariate-adjusted (age, risk factors, treatments, door-to-needle time) STEMI gender mortality difference was not significant (OR=2.0, CI: 0.7-5.5; P=.14). CONCLUSION: These data are similar to other reported data. However, differences exist, and their explanation should be pursued to provide a valuable insight into understanding ACS and improving its management.

Weekend versus weekday, morning versus evening admission in relationship to mortality in acute coronary syndrome patients in 6 middle eastern countries: results from gulf race 2 registry.

We used prospective cohort data of patients with acute coronary syndrome (ACS) to compare their management on weekdays/mornings with weekends/nights, and the possible impact of this on 1-month and 1-year mortality. Analyses were evaluated using univariate and multivariate statistics. Of the 4,616 patients admitted to hospitals with ACS, 76% were on weekdays. There were no significant differences in 1-month (odds ratio (OR), 0.88; 95% CI: 0.68-1.14) and 1-year mortality (OR, 0.88; 95% CI: 0.70-1.10), respectively, between weekday and weekend admissions. Similarly, there were no significant differences in 1-month (OR, 0.92; 95% CI: 0.73-1.15) and 1-year mortality (OR, 0.98; 95% CI: 0.80-1.20), respectively, between nights and day admissions. In conclusion, apart from lower utilization of angiography (P < .001) at weekends, there were largely no significant discrepancies in the management and care of patients admitted with ACS on weekdays and during morning hours compared with patients admitted on weekends and night hours, and the overall 30-day and 1-year mortality was similar between both the cohorts.

Immediate and one-year outcome of patients presenting with acute coronary syndrome complicated by stroke: findings from the 2nd Gulf Registry of Acute Coronary Events (Gulf RACE-2).

BACKGROUND: Stroke is a potential complication of acute coronary syndrome (ACS). The aim of this study was to identify the prevalence, risk factors predisposing to stroke, in-hospital and 1-year mortality among patients presenting with ACS in the Middle East. METHODS: For a period of 9 months in 2008 to 2009, 7,930 consecutive ACS patients were enrolled from 65 hospitals in 6 Middle East countries. RESULTS: The prevalence of in-hospital stroke following ACS was 0.70%. Most cases were ST segment elevation MI-related (STEMI) and ischemic stroke in nature. Patients with in-hospital stroke were 5 years older than patients without stroke and were more likely to have hypertension (66% vs. 47.6%, P = 0.001). There were no differences between the two groups in regards to gender, other cardiovascular risk factors, or prior cardiovascular disease. Patients with stroke were more likely to present with atypical symptoms, advanced Killip class and less likely to be treated with evidence-based therapies. Independent predictors of stroke were hypertension, advanced killip class, ACS type -STEMI and cardiogenic shock. Stroke was associated with increased risk of in-hospital (39.3% vs. 4.3%) and one-year mortality (52% vs. 12.3%). CONCLUSION: There is low incidence of in-hospital stroke in Middle-Eastern patients presenting with ACS but with very high in-hospital and one-year mortality rates. Stroke patients were less likely to be appropriately treated with evidence-based therapy. Future work should be focused on reducing the risk and improving the outcome of this devastating complication.

Clinical Profile and Mortality of ST-Segment Elevation Myocardial Infarction Patients Receiving Thrombolytic Therapy in the Middle East.

OBJECTIVE: Little is known about thrombolytic therapy patterns in patients with ST-elevation myocardial infarction (STEMI) in the Middle East. The objective of this study was to evaluate the clinical profile and mortality of STEMI patients who arrived in hospital within 12 hours from pain onset and received thrombolytic therapy. PATIENTS AND METHODS: This was a prospective, multinational, multi-centre, observational survey of consecutive acute coronary syndrome patients admitted to 65 hospitals in six Middle Eastern countries during the period between October 2008 and June 2009, as part of Gulf RACE-II (Registry of Acute Coronary Events). Analyses were performed using univariate statistics. RESULTS: Out of 2,465 STEMI patients, 66% (n = 1,586) were thrombolysed with namely: streptokinase (43%), reteplase (44%), tenecteplase (10%), and alteplase (3%). 22.7% received no reperfusion. Median age of the study cohort was 50 (45-59) years with majority being males (91%). The overall median symptom onset-to-presentation and door-to-needle times were 165 (95- 272) minutes and 38 (24-60) minutes, respectively. Generally, patients presenting with higher GRACE risk scores were treated with newer thrombolytic agents (reteplase and tenecteplase) (P < 0.001). The use of newer thrombolytic agents was associated with a significantly lower mortality at both 1-month (0.8% vs. 1.7% vs. 4.2%; P = 0.014) and 1-year (0% vs. 1.7% vs. 3.4%; P = 0.044) compared to streptokinase use. CONCLUSIONS: Majority of STEMI patients from the Middle East were thrombolysed with streptokinase and reteplase in equal numbers. Nearly one-fifth of patients did not receive any reperfusion therapy. There was inappropriately long symptom-onset to hospital presentation as well as door-to-needle times. Use of newer thrombolytic agents in high risk patients was appropriate. Newer thrombolytic agents were associated with significantly lower mortality at 1-month and 1-year compared to the older agent, streptokinase.

Marital status and outcome of patients presenting with acute coronary syndrome: an observational report.

UNLABELLED: BACKGROUND & HYPOTHESIS: Data on the clinical characteristics and outcome of patients presenting with acute coronary syndrome (ACS) according to their marital status is not clear. METHODS: A total of 5334 patients presenting with ACS in 65 hospitals in 6 Middle East countries in the 2nd Gulf Registry of Acute Coronary Events (Gulf RACE-2) were studied according to their marital status (5024 married, 100 single, and 210 widowed patients). RESULT: When compared to married patients, widowed patients were older and more likely to be female. Widowed patients were more likely to have diabetes mellitus, hypertension, history of heart failure, and peripheral vascular disease and were less likely to be tobacco users when compared to the other groups. Widowed patients were also more likely to present with atypical symptoms and have advanced Killip class. Widowed patients were more likely to present with non-ST-elevation myocardial infarction (NSTEMI) when compared to the other 2 groups. Widowed patients were more likely to have heart failure (P = 0.001), cardiogenic shock (P = 0.001), and major bleeding (P = 0.002) when compared to the other groups. No statistically significant difference was observed in regard to duration of hospital stay, door to needle time in STEMI patients, or cardiac arrhythmias between the various groups. Widowed patients had higher in-hospital, 30-day, and 1-year mortality rates (P = 0.001). Marital status was an independent predictor for in-hospital mortality. CONCLUSION: Widowed marital status was associated with worse cardiovascular risk profile, and worse in-hospital and 1-year outcome. Future work should be focused on whether the provision of psychosocial support will result in improved outcomes among this high-risk group.

Tobacco modalities used and outcome in patients with acute coronary syndrome: an observational report.

AIM: The authors evaluated the prevalence and effect of the various tobacco use modalities among patients presenting with acute coronary syndrome (ACS) and compared them with non-tobacco and ex-tobacco users. METHODS: An analysis of the 2nd Gulf Registry of Acute Coronary Events conducted between October 2008 and June 2009 and which included 7930 consecutive patients hospitalised with ACS was made. Patients initially were divided into non-tobacco users, ex-tobacco users and current tobacco users. Subanalysis according to the tobacco modality used was subsequently made: cigarette, waterpipe or smokeless tobacco users. RESULTS: Overall, 2834 (36%) patients were current tobacco users, 306 (3.9%) patients were waterpipe smokers and 240 patients (3%) were oral tobacco users. When compared with non-tobacco and ex-tobacco users, overall current tobacco users were younger, more likely to be male subjects and less likely to have diabetes mellitus, hypertension and dyslipidaemia. Mortality rate (p=0.001) and overall cardiovascular events (p=0.001) were lower among current tobacco users when compared with the other two groups. After adjustment for baseline variables, tobacco use was not an independent predictor of adverse events. Subset analysis demonstrates oral tobacco users and waterpipe smokers were older and more likely to be women when compared with cigarette smokers. Among the various tobacco groups, inhospital mortality rates were significantly higher among the waterpipe smokers when compared with the other two groups. CONCLUSIONS: Clinical characteristics and outcomes of ACS patients depend on the tobacco modality used. Further studies are required to evaluate the impact of emerging tobacco use modalities on patients with coronary artery disease.

Impact of anemia on in-hospital, one-month and one-year mortality in patients with acute coronary syndrome from the Middle East.

AIM: The aim of this study was to evaluate the impact of admission anemia on in-hospital, one-month, and one-year mortality in patients from the Middle East with acute coronary syndrome (ACS). METHODS: Data were analyzed from 7922 consecutive patients admitted to hospitals throughout six Middle-Eastern countries with the final diagnosis of ACS, as part of Gulf RACE II (Registry of Acute Coronary Events II). Anemia at admission was defined according to the World Health Organization definition (<13 g/dL in men and <12 g/dL in women). Analyses were conducted using univariate and multivariate statistical techniques. RESULTS: The median age of the cohort was 56 (48-65) years, with the majority being male (79%). Anemia at admission was present in 2241 patients (28%). Patients with anemia were more likely to have in-hospital complications including heart failure, recurrent ischemia, re-infarction, cardiogenic shock, stroke, and major bleed. Even after adjustment, anemia was still associated with mortality at in-hospital (odds ratio [OR]=1.71, 95% confidence interval [CI], 1.34-2.17; P<0.001), at one-month (OR=1.34, 95% CI, 1.06-1.71; P=0.016), and at one-year (OR=1.22, 95% CI, 1.01-1.49; P=0.049) post-admission with ACS. CONCLUSIONS: Admission anemia in patients with ACS from six Middle-Eastern countries was strongly associated with mortality at in-hospital, one-month, and at one-year. Hence, admission anemia must be considered in the initial risk assessment of ACS patients along with other risk scores.

Impact of evidence-based cardiac medication on short- and long-term mortality in 7,567 acute coronary syndrome patients in the Gulf RACE-II registry.

OBJECTIVE: To evaluate the impact of evidence-based cardiac medications (EBMs) on 1-month and 1-year mortality among discharged acute coronary syndrome (ACS) patients in the Middle East. METHODS: Data were analyzed from 7,567 consecutive ACS patients admitted to 66 hospitals in 6 Middle Eastern countries enrolled in the Gulf RACE II in October 2008 to June 2009. Individual EBMs or concurrent use of the EBM combination consists of an anti-platelet therapy, angiotensin-converting enzyme inhibitor (ACEI) (or angiotensin II receptor blocker (ARB)), ß-blocker, and a statin at discharge, were evaluated. Analyses were performed using univariate and multivariate statistical techniques. RESULTS: The mean age of the cohort was 56 +/- 12 years with 79% being males. 65% of the patients received the concurrent EBM combination at discharge. Aspirin, clopidogrel, statins, b-blockers and ACEIs/ARBs use was 96%, 71%, 95%, 82% and 81%, respectively. 70% of the patients were prescribed both aspirin and clopidogrel concurrently at discharge. Adjusting for demographic, clinical, revascularization, and country characteristics, the multivariable logistic regression models demonstrated no differences in mortality at both 1-month (3.0 vs. 3.6%; p = 0.828) and 1-year (3.5 vs. 3.5%; p = 0.976) between the concurrent EBM combination users and non-users. CONCLUSION: The majority of the ACS patients in the Middle East were prescribed the guideline recommended EBM combination at discharge. However, potential still remains for further optimization of management. Further studies are required to examine the long term effect of concurrent use of the EBM combination on mortality in the region.

In-hospital adverse clinical outcomes of ST elevation myocardial infarction patients with renal dysfunction. Insights from the Saudi Project for Assessment of Coronary Events.

OBJECTIVE: To explore the prognostic value of baseline estimated glomerular filtration rate (eGFR) in Saudi patients presenting with ST elevation myocardial infarction (STEMI), and its impact on hospital therapies. METHODS: The STEMI patients with a baseline serum Creatinine enrolled in the SPACE (Saudi Project for Assessment of Coronary Events) registry were analyzed. This study was performed in several regions in Saudi Arabia between December 2005 to December 2007. Based on eGFR levels, patients were classified into: more than 90.1 ml/min (normal renal function), 90-60.1 (borderline/mildly impaired renal function), 60-30 (moderate renal dysfunction), and less than 30 ml/min/1.73 m2 (severe renal dysfunction). RESULTS: Two thousand and fifty-eight patients qualified for this study. Of these, 1058 patients had renal dysfunction. Patients with renal dysfunction were older, and had a higher prevalence of risk factors for atherosclerosis. Patients with moderate or severe renal dysfunction were less likely to be treated with beta blockers, angiotensin converting enzymes inhibitors, statins, or reperfusion therapies. Significantly worse outcomes were seen with lower eGFR in a stepwise fashion. The adjusted odds ratio of in-hospital death in patients with eGFR less than 30 ml/min was 5.3 (95% CI, 1.15-25.51, p=0.0383). CONCLUSION: A low baseline eGFR in STEMI patients is an independent predictor of all major adverse cardiovascular outcomes, and a marker for less aggressive in-hospital therapy.

Utilization and determinants of in-hospital cardiac catheterization in patients with acute coronary syndrome from the Middle East.

We assessed the use and determinants of cardiac catheterization during index admissions, among patients with acute coronary syndrome (ACS) in the Middle East. Data were analyzed from 8150 consecutive ACS patients enrolled prospectively. The overall rate of cardiac catheterization was 20%. Major predictors of cardiac catheterization were university hospitals, hospitals with catheterization facilities, physician type, and Gulf citizenship. High-risk patients were catheterized less compared to low-risk patients; odds ratio (OR) 0.44, 95% confidence interval (CI): 0.33-0.60, P < .001 and OR 0.68, 95% CI: 0.48-0.98, P = .037 for patients with non-ST-elevation ACS and ST-elevation myocardial infarction, respectively. The use of cardiac catheterization in patients with ACS from Middle East is low. It is related more to hospital characteristics than to baseline risks. There is a need to explore ways to increase overall rate of in-hospital cardiac catheterization in the region and direct it to patients who would benefit most.