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Featured researches published by Yannis Mantas.


Journal of the American College of Cardiology | 2008

Physical Activity Status and Acute Coronary Syndromes Survival The GREECS (Greek Study of Acute Coronary Syndromes) Study

Christos Pitsavos; Stavros A. Kavouras; Demosthenes B. Panagiotakos; Sophia Arapi; Costas A. Anastasiou; Spyros Zombolos; Petros Stravopodis; Yannis Mantas; Yannis Kogias; Antonis Antonoulas; Christodoulos Stefanadis

OBJECTIVES We sought to evaluate the association between physical activity levels and the clinical outcome at presentation, as well as the 30-day prognosis of hospitalized patients with acute coronary syndromes (ACS). BACKGROUND Regular physical activity has been associated with decreased risk of coronary heart disease. However, less is known about the effects of life-long physical activity on ACS prognosis. METHODS From October 2003 to September 2004, a sample of 6 hospitals located in urban and rural Greek regions were selected, and almost all of their ACS patients were enrolled into the study (2,172 patients were included in the study; 76% men and 24% women). Logistic regression models were applied to evaluate the effect of physical activity status (as assessed using the International Physical Activity Questionnaire) on in-hospital mortality and the 30-day outcome of cardiovascular events (death or rehospitalization due to cardiovascular disease). RESULTS An inverse association was observed between the level of physical activity and troponin I levels at presentation (p = 0.01). Moreover, after taking into account various potential confounders, physical activity was associated with a 0.56-fold (95% confidence interval [CI] 0.32 to 0.90) lower odds of in-hospital mortality and a 0.80-fold (95% CI 0.50 to 0.99) lower odds of cardiovascular events within the first month after discharge. CONCLUSION In conclusion, physical activity is associated with a reduced severity of ACS, reduced in-hospital mortality rates, and improved short-term prognosis.


Genetics in Medicine | 2005

Association between TNF-alpha -308GA polymorphism and the development of acute coronary syndromes in Greek subjects : The CARDIO2000-GENE Study

George Dedoussis; Demosthenes B. Panagiotakos; Nikoleta Vidra; Eirini Louizou; Christina Chrysohoou; Athanasios Germanos; Yannis Mantas; Savas Tokmakidis; Christos Pitsavos; Christodoulos Stefanadis

Purpose: We investigated the association of a polymorphism within the promoter of ΤΝF-α locus at the position −308 on the likelihood of having acute coronary syndromes (ACS) in Greek adults.Methods: We studied demographic, lifestyle, and clinical information in 237 hospitalized patients (185 males) with a first event of an ACS and 237 matched by age and sex (controls) without any clinical evidence of coronary heart disease. Genotyping was performed by PCR-RFLP analysis.Results: The genotype frequencies were in patients, 87% (n = 206), 12% (n = 29), and 1% (n = 2) for G/G, G/A, and A/A, and in controls, 96% (n = 227), 4% (n = 10), and 0% (n = 0) for G/G, G/A, and A/A, respectively (P = 0.04). After adjusting for age and sex, as well as various potential confounders, we observed that G/A or A/A genotypes were associated with 1.94-fold higher odds (95% CI 1.06 to 3.68) of ACS compared to G/G homozygotes. No gene to—gender or to—clinical syndrome interactions were observed. Further subgroup analysis showed that the distribution of TNF-α −308G>A polymorphism was associated with the presence of family history of CHD in patients, but not in controls. In particular, in G/A and A/A patients 17.2% reported family history of CHD, whereas in G/G patients, 34.5% reported family history (P = 0.036).Conclusions: Our findings may state a hypothesis of an association between the −308G>A TNF-α polymorphism the development of ACS and the presence of family history of CHD, in Greece.


Neuropsychiatric Disease and Treatment | 2008

Marital status, depressive episodes, and short-term prognosis of patients with acute coronary syndrome: Greek study of acute coronary syndrome (GREECS)

Demosthenes B. Panagiotakos; Christos Pitsavos; Yannis Kogias; Yannis Mantas; Spyros Zombolos; Antonis Antonoulas; George Giannopoulos; Christina Chrysohoou; Christodoulos Stefanadis

The association between marital status and short-term prognosis of patients hospitalized for acute coronary syndrome (ACS) was evaluated. From October 2003 to September 2004, a sample of 6 hospitals located in Greek regions was selected, and almost all survivors after an ACS were enrolled into the study (2172 patients were included in the study; 76% were men). The in-hospital mortality rate was 3.2% in male patients and 5.7% in female patients (p = 0.009). Never-married patients had 2.8-times higher risk of dying during hospitalization compared with married, after adjusting for various confounders (p < 0.01, attributable risk = 64%). Furthermore, never-married had 2.7-times higher risk of dying during the first 30-days following hospitalization compared with married (p < 0.01, attributable risk = 62%). Moderate depressive symptoms 3.26-fold (95% CI 1.40–7.11) the risk of recurrent events, while severe depressive symptoms were associated with 8.2-fold (95% CI 3.98–17.1) higher risk of events. No interaction was observed between marital status and depression on 30-day prognosis of ACS patients (p > 0.5). People who were not-married and depressed at the time of an acute cardiac episode were at higher risk of fatal events than people who were married, irrespective of depression status and other characteristics.


Journal of Clinical Hypertension | 2008

Systolic Blood Pressure on Admission Predicts In‐Hospital Mortality Among Patients Presenting With Acute Coronary Syndromes: The Greek Study of Acute Coronary Syndromes

Christos Pitsavos; Demosthenes B. Panagiotakos; Spyros Zombolos; Yannis Mantas; Antonis Antonoulas; Petros Stravopodis; Yannis Kogias; Georgia Kourlaba; Eleftherios Tsiamis; Christodoulos Stefanadis

The authors sought to evaluate whether the level of systolic blood pressure (SBP) on hospital admission is an independent prognostic factor for in‐hospital mortality of patients hospitalized with acute coronary syndrome (ACS). From October 2003 to September 2004, 2172 consecutive patients with ACS were included in the study (76% men). The in‐hospital mortality rate was 3.2% in male and 5.7% in female patients (overall, 82 deaths; P=.009). An inverse association was observed between in‐hospital mortality rate and levels of SBP (<100 mm Hg, death rate 17.8%; 100–120 mm Hg, 3.7%; 120–140 mm Hg, 2.9%; >140 mm Hg, 2.6%; P<.001). Women, hypertensives, diabetics, dyslipidemics, and older patients had higher levels of SBP compared with other groups. The SBP of patients who received thrombolytic agents was lower than that of those who did not receive this therapy. Multi‐adjusted analysis revealed that a 10‐mm Hg increment in SBP was associated with a 27% lower likelihood of death during hospitalization (odds ratio, 0.73; 95% confidence interval, 0.66–0.90).


Heart and Vessels | 2007

Sex-related characteristics in hospitalized patients with acute coronary syndromes – the Greek Study of Acute Coronary Syndromes (GREECS)

Demosthenes B. Panagiotakos; Christos Pitsavos; Georgia Kourlaba; Yannis Mantas; Spyros Zombolos; Yannis Kogias; Antonis Antonoulas; Petros Stravopodis; Christodoulos Stefanadis

We studied the sex-specific distribution of various factors in hospitalized patients who presented with acute coronary syndromes (ACS), as well as the annual incidence and the in-hospital and short-term outcomes in males and females. A sample of six hospitals located in Greek urban and rural regions was selected. In these hospitals we recorded almost all nonfatal admissions with a first event of ACS, from October 2003 to September 2004. Sociodemographic, clinical, dietary, and other lifestyle characteristics were recorded. A total of 2 172 patients were included in the study (1 649, 76% male and 523, 24% female). The annual incidence rate was almost three times higher in males than in females (34 per 10 000 males and 10.9 per 10 000 females). The highest frequency of events was observed in winter, in both sexes. Females had higher in-hospital mortality rate as compared to males (5.7% vs 3.2%, P = 0.007), while the 30-day mortality and rehospitalization rate was 17% in male and 16% in female patients. The most common discharged diagnosis for males was Q-wave myocardial infraction (35%), while females were more likely to suffer from unstable angina (42%). Females were older than males, waited longer between seeking and receiving medical advice, and were more likely to have a history of hypertension, obesity, and diabetes mellitus as compared to males. On the other hand, males were more likely to be smokers, to follow a more typical Mediterranean diet, and to be more physically active (P < 0.05). We revealed a sex-related difference in the profile of clinical characteristics and other cardiovascular risk factors in hospitalized patients for ACS.


Current Vascular Pharmacology | 2016

Diabetes Mellitus, Hypertension and Hypercholesterolemia in Relation to the 10-Year ACS Prognosis; the GREECS Study.

Venetia Notara; Demosthenes B. Panagiotakos; Moscho Michalopoulou; Matina Kouvari; Eleni Tsompanaki; Margarita Verdi; Nikos Vassileiou; Eleni Kalli; Yannis Mantas; Yannis Kogias; Petros Stravopodis; George Papanagnou; Spyros Zombolos; Christos Pitsavos

Although hypertension, hypercholesterolemia and diabetes mellitus (DM) are recognized as major cardio-metabolic risk factors in primary Acute Coronary Syndrome (ACS) prevention, studies focusing on secondary ACS incidence are scarce. In the present study, the association between the aforementioned factors and 10-year ACS prognosis was evaluated. From October 2003 to September 2004 2,172 consecutive patients with ACS diagnosis, from 6 Greek hospitals, were enrolled. During 2013-14, the 10-year follow-up was performed in 1,918 participants. Baseline clinical factors were assessed through physical examination, medical records and pharmacological management. All-cause mortality and the development of fatal or non-fatal ACS events were recorded through medical records or hospital registries. Logistic regression models were applied to evaluate the impact of baseline clinical status on the ACS prognosis. The 10-year all cause and ACS mortality rate was 32.6 and 17.8%, respectively. Multi-adjusted analysis highlighted that, after taking into account various potential confounders, DM was the sole clinical factor associated with adverse effect on the 10-year ACS fatal incidence [Odds Ratio (OR)=1.35, 95% Confidence Interval (95% CI) 1.01, 1.80, p=0.04]. DM was the only clinical factor that aggravated ACS prognosis, whereas abnormal lipids profile and blood pressure did not seem to determine prognosis. Thus, glycaemic control may play a critical role in the secondary CVD prevention management of ACS patients.


International Journal of Food Sciences and Nutrition | 2015

The role of coffee consumption on the 10-year (2004–2014) Acute Coronary Syndrome (ACS) incidence among cardiac patients: the GREECS observational study

Venetia Notara; Demosthenes B. Panagiotakos; Matina Kouvari; Despoina Tzanoglou; Georgia Maria Kouli; Yannis Mantas; Yannis Kogias; Petros Stravopodis; George Papanagnou; Spyros Zombolos; Fotοula Babatsikou; Charilaos Koutis; Christos Pitsavos; Greecs Study Investigators

Abstract The association between long-term coffee consumption and 10-year cardiovascular disease incidence among Acute Coronary Syndrome (ACS) patients was evaluated. From 2003 to 2004, 2172 ACS consecutive patients from six major Greek hospitals were enrolled. During 2013–2014, the 10-year follow-up was performed (88% participation rate) and recurrent fatal or non-fatal ACS was recorded. Baseline coffee consumption (cups/day) was assessed using a semi-quantitative Food Frequency Questionnaire. Multi adjusted analysis revealed that 1–2 cups of coffee/day versus no consumption had an adverse effect on the ACS incidence [odds ratio (OR) = 1.35, 95% confidence interval (CI) 1.01, 1.79]. In subgroup analysis, with hypertension as strata, only the normotensive reached significance. Odds ratios for 1–2 and ≥3 cups relative to no consumption were [OR = 1.66, 95% CI 1.07, 2.60] and [OR = 1.86, 95% CI 1.06, 3.27], respectively, after controlling for potential confounders. Thus, avoidance of coffee may be of high importance to ameliorate disease prognosis among cardiac patients.


Journal of Preventive Medicine and Public Health | 2016

The Impact of Educational Status on 10-Year (2004-2014) Cardiovascular Disease Prognosis and All-cause Mortality Among Acute Coronary Syndrome Patients in the Greek Acute Coronary Syndrome (GREECS) Longitudinal Study

Venetia Notara; Demosthenes B. Panagiotakos; Yannis Kogias; Petros Stravopodis; Antonis Antonoulas; Spyros Zombolos; Yannis Mantas; Christos Pitsavos

Objectives: The association between educational status and 10-year risk for acute coronary syndrome (ACS) and all-cause mortality was evaluated. Methods: From October 2003 to September 2004, 2172 consecutive ACS patients from six Greek hospitals were enrolled. In 2013 to 2014, a 10-year follow-up (2004-2014) assessment was performed for 1918 participants (participation rate, 88%). Each patient’s educational status was classified as low (<9 years of school), intermediate (9 to 14 years), or high (>14 years). Results: Overall all-cause mortality was almost twofold higher in the low-education group than in the intermediate-education and high-education groups (40% vs. 22% and 19%, respectively, p<0.001). Additionally, 10-year recurrent ACS events (fatal and non-fatal) were more common in the low-education group than in the intermediate-education and high-education groups (42% vs. 30% and 35%, p<0.001), and no interactions between sex and education on the investigated outcomes were observed. Moreover, patients in the high-education group were more physically active, had a better financial status, and were less likely to have hypertension, diabetes, or ACS than the participants with the least education (p<0.001); however, when those characteristics and lifestyle habits were accounted for, no moderating effects regarding the relationship of educational status with all-cause mortality and ACS events were observed. Conclusions: A U-shaped association may be proposed for the relationship between ACS prognosis and educational status, with participants in the low-education and high-education groups being negatively affected by other factors (e.g., job stress, depression, or loneliness). Public health policies should be aimed at specific social groups to reduce the overall burden of cardiovascular disease morbidity.


Preventive Medicine | 2016

Depressive symptomatology in relation to 10-year (2004–2014) acute coronary syndrome incidence; the moderating role of diet and financial status

Venetia Notara; Demosthenes B. Panagiotakos; Elena Tsompanaki; Matina Kouvari; Yannis Kogias; George Papanagnou; Antonis Antonoulas; Petros Stravopodis; Spyros Zombolos; Ifigenia Stergiouli; Yannis Mantas; Fotoula Babatsikou; Christos Pitsavos

BACKGROUND The association between depression status and 10-year cardiovascular disease (CVD) incidence among acute coronary syndrome (ACS) patients, in relation to nutritional and financial status, was evaluated. METHODS From October 2003 to September 2004, a sample of 2172 consecutive ACS patients from 6 Greek hospitals was enrolled. In 2013-14, the 10-year follow-up was performed. Depressive symptoms were evaluated using the validated CES-D score (range 0-60). Adherence to Mediterranean diet was assessed through MedDietScore (range 0-55) and financial status was determined by the annual income. RESULTS Ranking from the 1st to 3rd CES-D tertile, recurrent fatal/non fatal ACS rates were 33%, 37% and 42%, respectively (p=0.006). Multiple logistic regression models revealed an adverse association of severe depression status (i.e. 3rd tertile) compared to no depression (i.e. 1st tertile) [odds ratio (OR)=1.31, 95% confidence interval (95% CI) 1.01, 1.69]. When controlling for financial status, the relationship between depression and ACS prognosis remained marginally significant; while subgroup analysis revealed that only patients with low/moderate income were negatively affected [OR=1.36, 95% CI 0.98, 1.88]. Further stratified analysis, by MedDietScore group, was applied; the above association remained significant only in patients with low compliance to this dietary pattern [OR=1.68, 95% CI 1.10, 2.18]. CONCLUSIONS ACS coexisting with severe depression status seems to result in adverse disease outcomes while financial status and Mediterranean diet are proposed as potential moderators. Public health programs should focus on vulnerable groups and minimize depressive symptoms through appropriate medical treatment and lifestyle interventions, so as to ameliorate the disease prognosis in clinical and community levels.


BMC Public Health | 2005

Epidemiology of acute coronary syndromes in a Mediterranean country; aims, design and baseline characteristics of the Greek study of acute coronary syndromes (GREECS)

Christos Pitsavos; Demosthenes B. Panagiotakos; Antonis Antonoulas; Spyros Zombolos; Yannis Kogias; Yannis Mantas; Peter Stravopodis; Georgia Kourlaba; Christodoulos Stefanadis

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Christos Pitsavos

National and Kapodistrian University of Athens

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Spyros Zombolos

National and Kapodistrian University of Athens

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Yannis Kogias

National and Kapodistrian University of Athens

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Petros Stravopodis

National and Kapodistrian University of Athens

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Antonis Antonoulas

National and Kapodistrian University of Athens

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Venetia Notara

Technological Educational Institute of Athens

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Christina Chrysohoou

National and Kapodistrian University of Athens

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