AHEPA Hospital

Thessaloníki, Greece

AHEPA Hospital

Thessaloníki, Greece

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Persynaki A.,University of Geneva | Karras S.,AHEPA Hospital | Pichard C.,University of Geneva
Nutrition | Year: 2017

Periodic fasting, under a religious aspect, has been adopted by humans for centuries as a crucial pathway of spiritual purification. Caloric restriction, with or without exclusion of certain types of food, is often a key component. Fasting varies significantly among different populations according to cultural habits and local climate conditions. Religious fasting in terms of patterns (continuous versus intermittent) and duration can vary from 1 to 200 d; thus, the positive and negative impact on health can be considerable. Advantages of religious fasting are claimed by many but have been explored mainly by a limited number of studies conducted in Buddhist, Christian, or Muslim populations. These trials indicate that religious fasting has beneficial effects on body weight and glycemia, cardiometabolic risk markers, and oxidative stress parameters. Animals exposed to a diet mimicking fasting have demonstrated weight loss as well as lowered plasma levels of glucose, triacylglycerols, and insulin growth factor-1, although lean body mass remained stable. Diabetic mice on repeated intermittent fasting had less insulin resistance that mice fed ad libitum. The long-term significance of such changes on global health remains to be explored. This review summarizes the data available with regard to benefits of fasting followed for religious reasons on human health, body anthropometry, and cardio-metabolic risk markers; aims to bridge the current knowledge gap on available evidence and suggests considerations for the future research agenda. Future studies should explore every type of religious fasting, as well as their consequences in subpopulations such as children, pregnant women, and the elderly, or patients with chronic metabolic diseases. © 2016 Elsevier Inc.


Paliobei V.P.,AHEPA Hospital | Psillas G.K.,AHEPA Hospital | Haidich A.-B.,Aristotle University of Thessaloniki | Constantinidis J.,AHEPA Hospital
Otolaryngology - Head and Neck Surgery | Year: 2011

Objective. The aim of this prospective study was to audiologically evaluate consecutive glaucoma patients with or without exfoliation. Study Design. Prospective study. Setting. Glaucoma Unit and Audiology Department at a university hospital. Subjects and Methods. Consecutive subjects with exfoliative glaucoma (XFG) or primary open-angle glaucoma (POAG) aged between 50 and 70 years were enrolled. Auditory thresholds at 0.5, 1.0, 2.0, 4.0, and 8.0 Hz were measured bilaterally. Cochlear activity was assessed by recording distortion product otoacoustic emissions (DPOEs). Functional changes in the retrocochlear auditory pathway were evaluated by auditory brainstem responses (ABRs). Results. One hundred and ten patients with XFG and 85 patients with POAG who presented in a glaucoma clinic were investigated. The mean age of study patients was 66.2 ± 5.6 years; range, 50-70 years). The odds of pathologic ABR central transmission time (interpeak latencies I-III, III-V, and I-V and waves I, III, and V) were 4.34 times higher in patients with XFG than in patients with POAG (95% confidence interval [CI], 2.22-8.49; P < .001). This significant association remained after adjusting for sex and age (odds ratio [OR] 4.12; 95% CI, 2.07-8.22; P < .001). Furthermore, the odds of ABR remained significantly higher in patients with XFG than in patients with POAG (OR 4.36; 95% CI, 2.10-9.06; P < .001) after controlling for systemic diseases (arterial hypertension, coronary heart disease, high cholesterol, and stroke). Conclusion. In the first study to compare XFG and POAG monitoring of the peripheral and central auditory pathway, it has been documented that XFG patients show a greater prevalence of retrocochlear pathology. © American Academy of Otolaryngology - Head and Neck Surgery Foundation 2011.


Bakris G.L.,University of Chicago | Sarafidis P.A.,AHEPA Hospital | Weir M.R.,University of Maryland Baltimore County | Dahlof B.,Sahlgrenska University Hospital | And 8 more authors.
The Lancet | Year: 2010

Background: The Avoiding Cardiovascular Events through Combination Therapy in Patients Living with Systolic Hypertension (ACCOMPLISH) trial showed that initial antihypertensive therapy with benazepril plus amlodipine was superior to benazepril plus hydrochlorothiazide in reducing cardiovascular morbidity and mortality. We assessed the effects of these drug combinations on progression of chronic kidney disease. Methods: ACCOMPLISH was a double-blind, randomised trial undertaken in five countries (USA, Sweden, Norway, Denmark, and Finland). 11 506 patients with hypertension who were at high risk for cardiovascular events were randomly assigned via a central, telephone-based interactive voice response system in a 1:1 ratio to receive benazepril (20 mg) plus amlodipine (5 mg; n=5744) or benazepril (20 mg) plus hydrochlorothiazide (12·5 mg; n=5762), orally once daily. Drug doses were force-titrated for patients to attain recommended blood pressure goals. Progression of chronic kidney disease, a prespecified endpoint, was defined as doubling of serum creatinine concentration or end-stage renal disease (estimated glomerular filtration rate <15 mL/min/1·73 m2 or need for dialysis). Analysis was by intention to treat (ITT). This trial is registered with ClinicalTrials.gov, number NCT00170950. Findings: The trial was terminated early (mean follow-up 2·9 years [SD 0·4]) because of superior efficacy of benazepril plus amlodipine compared with benazepril plus hydrochlorothiazide. At trial completion, vital status was not known for 143 (1%) patients who were lost to follow-up (benazepril plus amlodipine, n=70; benazepril plus hydrochlorothiazide, n=73). All randomised patients were included in the ITT analysis. There were 113 (2·0%) events of chronic kidney disease progression in the benazepril plus amlodipine group compared with 215 (3·7%) in the benazepril plus hydrochlorothiazide group (HR 0·52, 0·41-0·65, p<0·0001). The most frequent adverse event in patients with chronic kidney disease was peripheral oedema (benazepril plus amlodipine, 189 of 561, 33·7%; benazepril plus hydrochlorothiazide, 85 of 532, 16·0%). In patients with chronic kidney disease, angio-oedema was more frequent in the benazepril plus amlodipine group than in the benazepril plus hydrochlorothiazide group. In patients without chronic kidney disease, dizziness, hypokalaemia, and hypotension were more frequent in the benazepril plus hydrochlorothiazide group than in the benazepril plus amlodipine group. Interpretation: Initial antihypertensive treatment with benazepril plus amlodipine should be considered in preference to benazepril plus hydrochlorothiazide since it slows progression of nephropathy to a greater extent. Funding: Novartis. © 2010 Elsevier Ltd. All rights reserved.


Kouparanis A.,AHEPA Hospital | Bozikas A.,AHEPA Hospital | Spilioti M.,Aristotle University of Thessaloniki | Tziomalos K.,AHEPA Hospital
Brain Injury | Year: 2015

Background: Neuroleptic malignant syndrome (NMS) is a rare life-threatening disorder resulting from treatment with neuroleptic agents and other drugs that act as dopamine antagonists. NMS most often occurs shortly after the initiation, dose increase or withdrawal of the offending agent, but can rarely occur after long-term treatment at stable doses. Immediate discontinuation of the causative agent (or re-Administration if the cause is the withdrawal of neuroleptic therapy) along with supportive therapy to maintain cardiorespiratory stability and to reduce fever are the cornerstone of the management of NMS. Additional 'specific' treatments include dantrolene, bromocriptine and amantadine, but their role in the management of NMS is controversial. Case study: This study reports the case of NMS associated with long-term treatment with olanzapine at a stable dose. Administration of dantrolene was well-tolerated and resulted in prompt resolution of NMS symptoms. © 2015 Informa UK Ltd. All rights reserved: reproduction in whole or part not permitted.


Georgianos P.I.,AHEPA Hospital | Sarafidis P.A.,Aristotle University of Thessaloniki | Sinha A.D.,Indiana University | Agarwal R.,Indiana University
American Journal of Nephrology | Year: 2015

Background: Maintenance hemodialysis is typically scheduled thrice weekly due to simple logistic reasons; thus, the vast majority of hemodialysis patients receive renal replacement therapy for two shorter 2-day intervals and a longer 3-day interval. As compared to the 2-day interval, we review the ill effects of the longer 3-day interdialytic interval in this report. Summary: Large-scale observational studies show that both cardiovascular-related hospital admissions and mortality occur more frequently on the day following the long interdialytic interval than on any other day of the week. Although the reasons for excess mortality are obscure, several pathophysiologic mechanisms may be involved, such as a greater magnitude of change during the long interdialytic interval in the following parameters: volume status, electrolyte and acid-base status, arterial wall and left ventricle mechanics. These data raise the need for re-examining the issue of timing and frequency of prescribed dialysis regimens in an attempt to improve patient outcomes. Although enhanced-frequency and/or extended-time dialysis schedules may mitigate the risks of the long interdialytic interval, the benefit of such dialytic modalities on survival is not yet proven. Key Message: This article summarizes currently available epidemiologic and pathophysiologic evidence on the adverse effects related to the long interdialytic interval of thrice-weekly hemodialysis and discusses the need to research further alternative dialysis practices that could mitigate these risks. © 2015 S. Karger AG, Basel.


Pana Z.D.,AHEPA Hospital | Roilides E.,Aristotle University of Thessaloniki
Pediatric Blood and Cancer | Year: 2011

One of the most well-known drug interactions in pediatric oncology concerns the co-administration of itraconazole, an antifungal triazole, and vincristine, an antileukemic agent, which seems to enhance the risk of neurotoxicity of the latter, mediated through the cytochrome CYP450 enzyme system. The aim of this article is to review the metabolism of these two drugs, to analyze the published cases with severe triazole-enhanced vincristine neurotoxicity, to discuss the pathophysiological mechanisms of this adverse effect, and to contribute in understanding the differences in triazole-vincristine interaction severity. © 2011 Wiley-Liss, Inc.


Mandalos A.,Aristotle University of Thessaloniki | Anastasopoulos E.,Aristotle University of Thessaloniki | Makris L.,Aristotle University of Thessaloniki | Dervenis N.,Aristotle University of Thessaloniki | And 3 more authors.
Journal of Glaucoma | Year: 2013

Purpose: To evaluate the inter-examiner reproducibility of Ocular Response Analyzer (ORA) parameters in healthy subjects using the waveform score (WS) for quality control of acquisition. Patients and Methods: Fifteen healthy subjects had their intraocular pressure (IOP) measured with ORA by 2 masked examiners. An acquisition protocol that aimed at obtaining 4 reliable measurements in each eye with WS≥6 and with as few repeated measurements as possible was employed, whereas a maximum of 8 measurements per eye was allowed. Additional good quality criteria included symmetrical force-in and force-out applanation signal peaks on the ORA waveform and few or no distortions of the applanation signal curve. Only the right eyes were included in the analysis. Examiners were trained but not experienced. The inter-examiner reproducibility of ORA parameters was assessed using the intraclass correlation coefficient (ICC). Mean values of the best 4 measurements were considered in analysis. Results: ICC including the best 4 measurements per eye was high for all ORA parameters. Specifically, ICC for Goldmann- correlated IOP was 0.961, for corneal-compensated IOP was 0.962, for corneal resistance factor was 0.987, and for corneal hysteresis was 0.988. Similar reproducibility was found when only the 3 best measurements per eye were included in the analysis. Conclusions: The protocol for IOP measurement with ORA using the WS ≥ 6 as quality index achieved high inter-examiner reproducibility for all ORA parameters. High reproducibility was obtained even by inexperienced examiners when considering the mean of the best 3 measurements per eye. Copyright © 2013 by Lippincott Williams & Wilkins.


PubMed | University of Western Ontario, Marche Polytechnic University, Futura Medical, Pure North SEnergy Foundation and 5 more.
Type: | Journal: International journal of cardiology | Year: 2017

There continues to be interest in understanding the role of vitamin D in the pathogenesis, epidemiology and prevention of cardiovascular disease (CVD). In fact vitamin D deficiency has been associated to an increased risk of developing CVD given to the relationship between low vitamin D levels and obesity, diabetes mellitus, dyslipidaemia, endothelial dysfunction and hypertension. However, although vitamin D has been identified as a potentially important marker of CVD, the mechanisms through which vitamin D deficiency leads from endothelial dysfunction to myocardial infarction and stroke are not fully understood. Thus, the goal of this review is to provide an updated review of the literature on the basic science of how vitamin D may affect the cardiovascular system and in particular to analyze the role that vitamin D may have in the whole dynamic process from the initiation of endothelial dysfunction to the development of myocardial infarction and stroke.


Sarafidis P.A.,AHEPA Hospital | Stafylas P.C.,AHEPA Hospital | Georgianos P.I.,AHEPA Hospital | Saratzis A.N.,AHEPA Hospital | Lasaridis A.N.,AHEPA Hospital
American Journal of Kidney Diseases | Year: 2010

Background: Because of the major clinical and economic burden of diabetic nephropathy, new therapeutic tools to delay its progression are needed. Recent studies suggest that thiazolidinediones have renal benefits. We aimed to evaluate the effect of thiazolidinediones on urinary albumin and protein excretion in patients with diabetes mellitus. Study Design: Systematic review and meta-analysis by searching MEDLINE/PubMed, EMBASE, and Cochrane CENTRAL databases (1991 to September 2009). Setting & Population: Patients with diabetes mellitus. Selection Criteria for Studies: Randomized controlled trials. Intervention: Thiazolidinediones (rosiglitazone and pioglitazone) compared with placebo or other antidiabetic agents. Outcomes: Weighted (WMDs) and standardized mean differences (SMDs) for changes in urine albumin or protein excretion between the thiazolidinedione and control groups. Results: Of 171 originally identified articles, 15 studies (5 with rosiglitazone and 10 with pioglitazone) involving 2,860 patients were included in the analysis. In participants with baseline normo- or microalbuminuria, the WMD of proportional changes between the thiazolidinedione and control groups in urinary albumin excretion measured using time-specified collections was -64.8% (95% CI, -75.6 to -53.9) and the WMD of changes in albumin-creatinine ratio was -24.8% (95% CI, -39.6 to -10.0). Overall, in participants with normo- and microalbuminuria, thiazolidinedione treatment was associated with a significant decrease in urinary albumin excretion (SMD, -0.6 units of standard deviation [SD]; 95% CI, -0.8 to -0.4). Similarly, thiazolidinediones were associated with a significant decrease in urinary protein excretion in patients with proteinuria (SMD, -1.1 units of SD; 95% CI, -1.8 to -0.4). Limitations: Significant heterogeneity across included studies in several subgroup analyses; patient-level data not available. Conclusions: Treatment with thiazolidinediones significantly decreases urinary albumin and protein excretion in patients with diabetes. This finding calls for clinical trials with hard renal outcomes to elucidate the potential benefits of thiazolidinediones on diabetic nephropathy. © 2010 National Kidney Foundation, Inc.


Athyros V.G.,Hippokration Hospital | Tziomalos K.,AHEPA Hospital | Katsiki N.,Hippokration Hospital | Doumas M.,Hippokration Hospital | And 2 more authors.
World Journal of Gastroenterology | Year: 2015

Non-alcoholic fatty liver disease (NAFLD) is considered to be an independent cardiovascular disease (CVD) risk factor. However, simple steatosis has a benign clinical course without excess mortality. In contrast, the advanced form of NAFLD, non-alcoholic steatohepatitis (NASH) with liver fibrosis increases mortality by approximately 70%, due to an increase in CVD mortality by approximately 300%. Chronic kidney disease (CKD) may be caused by NAFLD/NASH and it substantially increases CVD risk, especially in the presence of type 2 diabetes mellitus. Moreover, CKD may trigger NAFLD/NASH deterioration in a vicious cycle. NAFLD/NASH is also related to increased arterial stiffness (AS), an independent CVD risk factor that further raises CVD risk. Diagnosis of advanced liver fibrosis (mainly by simple non-invasive tests), CKD, and increased AS should be made early in the course of NAFLD and treated appropriately. Lifestyle measures and statin treatment may help resolve NAFLD/NASH and beneficially affect the CVD risk factors mentionedabove. © 2015 Baishideng Publishing Group Inc. All rights reserved.

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