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Featured researches published by Panagiotis Politis.


Critical Care | 2009

Electrical muscle stimulation preserves the muscle mass of critically ill patients: a randomized study

Vasiliki Gerovasili; Konstantinos Stefanidis; Konstantinos Vitzilaios; Eleftherios Karatzanos; Panagiotis Politis; Apostolos Koroneos; Aikaterini Chatzimichail; Christina Routsi; Charis Roussos; Serafim Nanas

IntroductionCritically ill patients are characterized by increased loss of muscle mass, partially attributed to sepsis and multiple organ failure, as well as immobilization. Recent studies have shown that electrical muscle stimulation (EMS) may be an alternative to active exercise in chronic obstructive pulmonary disease (COPD) and chronic heart failure (CHF) patients with myopathy. The aim of our study was to investigate the EMS effects on muscle mass preservation of critically ill patients with the use of ultrasonography (US).MethodsForty-nine critically ill patients (age: 59 ± 21 years) with an APACHE II admission score ≥13 were randomly assigned after stratification upon admission to receive daily EMS sessions of both lower extremities (EMS-group) or to the control group (control group). Muscle mass was evaluated with US, by measuring the cross sectional diameter (CSD) of the vastus intermedius and the rectus femoris of the quadriceps muscle.ResultsTwenty-six patients were finally evaluated. Right rectus femoris and right vastus intermedius CSD decreased in both groups (EMS group: from 1.42 ± 0.48 to 1.31 ± 0.45 cm, P = 0.001 control group: from 1.59 ± 0.53 to 1.37 ± 0.5 cm, P = 0.002; EMS group: from 0.91 ± 0.39 to 0.81 ± 0.38 cm, P = 0.001 control group: from 1.40 ± 0.64 to 1.11 ± 0.56 cm, P = 0.004, respectively). However, the CSD of the right rectus femoris decreased significantly less in the EMS group (-0.11 ± 0.06 cm, -8 ± 3.9%) as compared to the control group (-0.21 ± 0.10 cm, -13.9 ± 6.4%; P < 0.05) and the CSD of the right vastus intermedius decreased significantly less in the EMS group (-0.10 ± 0.05 cm, -12.5 ± 7.4%) as compared to the control group (-0.29 ± 0.28 cm, -21.5 ± 15.3%; P < 0.05).ConclusionsEMS is well tolerated and seems to preserve the muscle mass of critically ill patients. The potential use of EMS as a preventive and rehabilitation tool in ICU patients with polyneuromyopathy needs to be further investigated.Trial Registrationclinicaltrials.gov: NCT00882830


Critical Care | 2011

Lung sonography and recruitment in patients with early acute respiratory distress syndrome: a pilot study.

Konstantinos Stefanidis; Stavros Dimopoulos; Elli-Sophia Tripodaki; Konstantinos Vitzilaios; Panagiotis Politis; Ploutarchos Piperopoulos; Serafim Nanas

IntroductionBedside lung sonography is a useful imaging tool to assess lung aeration in critically ill patients. The purpose of this study was to evaluate the role of lung sonography in estimating the nonaerated area changes in the dependent lung regions during a positive end-expiratory pressure (PEEP) trial of patients with early acute respiratory distress syndrome (ARDS).MethodsTen patients (mean ± standard deviation (SD): age 64 ± 7 years, Acute Physiology and Chronic Health Evaluation II (APACHE II) score 21 ± 4) with early ARDS on mechanical ventilation were included in the study. Transthoracic sonography was performed in all patients to depict the nonaerated area in the dependent lung regions at different PEEP settings of 5, 10 and 15 cm H2O. Lung sonographic assessment of the nonaerated lung area and arterial blood gas analysis were performed simultaneously at the end of each period. A control group of five early ARDS patients matched for APACHE II score was also included in the study.ResultsThe nonaerated areas in the dependent lung regions were significantly reduced during PEEP increases from 5 to 10 to 15 cm H2O (27 ± 31 cm2 to 20 ± 24 cm2 to 11 ± 12 cm2, respectively; P < 0.01). These changes were associated with a significant increase in arterial oxygen partial pressure (74 ± 15 mmHg to 90 ± 19 mmHg to 102 ± 26 mmHg; P < 0.001, respectively). No significant changes were observed in the nonaerated areas in the dependent lung regions in the control group.ConclusionsIn this study, we show that transthoracic lung sonography can detect the nonaerated lung area changes during a PEEP trial of patients with early ARDS. Thus, transthoracic lung sonography might be considered as a useful clinical tool in the management of ARDS patients.


Intensive Care Medicine | 2002

Leptospirosis presenting with encephalitis-induced coma

Ioanna Dimopoulou; Panagiotis Politis; George Panagyiotakopoulos; Lia Angela Moulopoulos; Maria Theodorakopoulou; Danai Bisirtzoglou; Christina Routsi; Charis Roussos

and responsive to light; the left eye had severe keratitis and conjunctivitis. On day 19 CSF analysis was normal and cultures of biological fluids were negative. On day 24 the patient achieved a normal neurological status (GCS score 11, motor response 6, eye opening 4, verbal response 1). On day 38, while on broad-spectrum antibiotics, he developed high-grade fever, metabolic acidosis, oliguria, and shock requiring dopamine for hemodynamic stability. Cultures were taken, and amphotericin B was started because a fungal infection was suspected. The patient deteriorated rapidly and 2 days later died. Results of cultures were obtained postmortem. Blood and urine cultures showed Candida albicans. The most common neurological manifestation of leptospirosis is aseptic meningitis [1, 2, 3], but myeloradiculopathy, myelopathy, Guillain-Barré-like syndrome, intracerebral bleeding, cerebellar dysfunction, and encephalitis have also been reported [4]. CNS signs and symptoms are usually of mild-to-moderate severity. Encephalitis-induced coma as a presenting symptom lasting for weeks is rare [1], and brain magnetic resonance imaging findings in such a case have not been previously reported. Clinical manifestations of leptospirosis usually occur after antibody production. Thus the role of the host immune response is significant, while direct tissue damage by the organism seems to be less important. Pathological findings suggest that vasculitis, mainly of the small vessels, is responsible for many symptoms and signs of leptospirosis. Separation of endothelial junctions, expansion of fenestrae, extravasation of inflammatory or red blood cells, and necrosis of endothelial cells are prominent features [1]. Angiitis may explain the focal cerebral white matter lesions found on brain magnetic resonance imaging in our patient. Similar radiological patterns have been reported in well-documented CNS vasculitis caused by systemic lupus erythematosus or primary antiphospholipid syndrome [5].


Infection | 2003

Mediastinal Mass with Dysphagia in an Elderly Patient

Anastasia Kotanidou; Ilias Andrianakis; A. Mavrommatis; Panagiotis Politis; Charalambos Roussos; I. Bellenis

Abstract.We report the use of endoscopic techniques for successful diagnosis in a case of atypical esophageal tuberculosis. Tuberculosis of the esophagus is an unusual presentation of this disease, having been estimated to occur in 0.15% of the people who die of tuberculosis. A few cases of possible primary tuberculous esophagitis have been described. This report describes a patient with dysphagia who appeared to have esophageal tuberculosis without HIV and in the absence of other signs of tuberculosis. The patient responded promptly to treatment with tuberculostatics.


Annals of Cardiac Anaesthesia | 2016

Simultaneous "traumatic Gerbode" and aortic rupture due to blunt chest trauma.

Hector Anninos; Nikolaos G. Baikoussis; Panagiotis Dedeilias; Michalis Argiriou; Panagiotis Politis; Pantelis Gounopoulos; Apostolos Koroneos; Christos Charitos

The Gerbode defect is characterized by a perimembranous ventricular septal defect between the left ventricle and the right atrium. This intracardiac shunt is a congenital defect but may be iatrogenic after valve surgery or atrioventricular node ablation, may be the result of endocarditis or may be traumatic. It is really rarely encountered as sequelae of non-penetrating heart trauma, and their clinical manifestations may often be unrecognized in the multi-injured patient. However, they are serious complications, and their diagnostic approach is not always feasible. We hereby present a case of a young man with the left ventricle to the right atrium communication after blunt thoracic trauma due to a car accident and concomitant rupture of the thoracic aorta. We present also the case and the ways of treatment according to the international bibliography.


Hospital chronicles | 2014

Left Ventricle to Right Atrium Shunt Secondary to Blunt Chest Trauma. A Case Report

Hector Anninos; Panagiotis Politis; Pantelis Gounopoulos; Apostolos Koroneos; Panagiotis Dedeilias

Percutaneous transluminal coronary angioplasty (PTCA) was introduced in the late 1970s as an alternative to coronary artery bypass graft surgery for coronary revascularization; since then, it has been accepted as a safe, reliable, and effective treatment for coronary artery disease, and its use has spread worldwide.Hyperlipidemia is a major cause of cardiovascular disease despite the availability of first-line cholesterol lowering agents such as statins. Although statin therapy is very efficient to reduce cholesterol, nearly 10-20% of individuals on statins, experience side effects, such myopathy, which hinder the drugs ability to achieve target low-density lipoprotein (LDL) cholesterol (LDL-C) levels. Statin-intolerant patients require more effective therapies for lowering LDL-C. As proprotein convertase subtilisin kexin type 9 (PCSK9) promotes the degradation of the LDL receptor (LDLR) and prevents it from recycling to the membrane, a new therapeutic approach to lowering LDL-C acts by blocking LDL-receptor degradation by serum PCSK9. Humanized monoclonal antibodies which target PCSK9 and its interaction with the LDL receptor (REGN727/SAR23653, AMG145, and RN316), as well as agents that inhibit PCSK9 synthesis, such as ALN-PCS, are now in clinical trials. The latter is a small interfering RNA (siRNA) that directs sequence-specific messenger RNA for PCSK9 leading to reduced hepatocyte-specific synthesis of PCSK9. Ongoing phase III trials’ results are awaited with great interest in order to define these agents’ long-term safety, tolerability and efficacy for reducing cardiovascular events.Sequential surgical thoracoscopic and electrophysiological (EP) ablation is gaining popularity as a novel approach for the treatment of patients with stand-alone, persistent and long standing persistent atrial fibrillation (AF).The measurement of fractional flow reserve (FFR) has been proven useful in evaluating whether or not to perform percutaneous coronary intervention (PCI), especially in the case of “intermediate” stenosis. Nowadays, the indication of its usefulness has been expanded. While coronary angiography remains the cornerstone for assessment of epicardial coronary artery lesions in the catheterization laboratory, FFR-guided coronary treatment has established its usefulness especially after FAME 1 & 2 trials.Atrial Fibrillation (AF) is associated with increased morbidity and mortality and a more severe impairment in quality of life compared with patients with congestive heart failure or myocardial infarction. Left atrial myocardial extensions, known as “myocardial sleeves”, are present in almost all pulmonary veins (PVs), and have been recognized as the main source of triggers that initiate and perpetuate AF.


Resuscitation | 2007

Successful resuscitation with thrombolysis of a patient suffering fulminant pulmonary embolism after recent intracerebral haemorrhage

Apostolos Koroneos; Antonia Koutsoukou; Dimitrios Zervakis; Panagiotis Politis; Sotiris Sourlas; Eleni Pagoni; Charis Roussos


Intensive Care Medicine | 2007

End-inspiratory occlusion maneuver during transesophageal echocardiography for patent foramen ovale detection in intensive care unit patients

Apostolos Koroneos; Panagiotis Politis; Sotiris Malachias; Antonis S. Manolis; Theodoros P. Vassilakopoulos


Intensive Care Medicine | 2001

Uremic pericarditis with tamponade following prolonged continuous hemofiltration

Epaminondas Zakynthinos; Theodoros P. Vassilakopoulos; Panagiotis Politis; Zoi Daniil; Charis Roussos; Spyros Zakynthinos


The Lancet | 2001

Propofol use in head-injury patients

Panagiotis Politis; Epaminondas Zakynthinos; Anastasia Kotanidou; Ilias Andrianakis; Charis Roussos

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Charis Roussos

National and Kapodistrian University of Athens

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Konstantinos Stefanidis

National and Kapodistrian University of Athens

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Konstantinos Vitzilaios

National and Kapodistrian University of Athens

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Serafim Nanas

National and Kapodistrian University of Athens

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Anastasia Kotanidou

National and Kapodistrian University of Athens

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Christina Routsi

National and Kapodistrian University of Athens

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Epaminondas Zakynthinos

National and Kapodistrian University of Athens

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Ilias Andrianakis

National and Kapodistrian University of Athens

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