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Showing 13 to 24 of 25 entries
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Medium-term Electrophysiologic Effects of a Cellularized Scaffold Implanted in Rats After Myocardial Infarction.

Cureus

Kolettis TM, Bagli E, Barka E, Kouroupis D, Kontonika M, Vilaeti AD, Markou M, Roumpi M, Maltabe V, La Rocca V, Agathopoulos S, Fotsis T.
PMID: 30214847
Cureus. 2018 Jul 10;10(7):e2959. doi: 10.7759/cureus.2959.

Background Cardiac repair strategies are being evaluated for myocardial infarctions, but the safety issues regarding their arrhythmogenic potential remain unresolved. By utilizing the in-vivo rat model, we have examined the medium-term electrophysiologic effects of a biomaterial scaffold that has...

Formalin Versus Bouin Solution for Testis Biopsies: Which Is the Better Fixative?.

Clinical pathology (Thousand Oaks, Ventura County, Calif.)

Ellenburg JL, Kolettis P, Drwiega JC, Posey AM, Goldberg M, Mehrad M, Giannico G, Gordetsky J.
PMID: 31922127
Clin Pathol. 2020 Jan 02;13:2632010X19897262. doi: 10.1177/2632010X19897262. eCollection 2020.

PURPOSE: Some resources recommended Bouin solution for the fixation of testis biopsy specimens. We compared the histologic quality of rat testicular tissue using buffered formalin and Bouin solution as fixatives.METHODS: We prospectively compared the histologic quality of rat testicular...

Concomitant Brugada syndrome substrate ablation and epicardial abdominal cardioverter-defibrillator implantation in a child.

HeartRhythm case reports

de Asmundis C, Chierchia GB, Baltogiannis GG, Salghetti F, Sieira J, Kolettis TM, Tasi K, Vlahos A, Czapla J, Brugada P, La Meir M.
PMID: 29928586
HeartRhythm Case Rep. 2018 Mar 17;4(6):214-218. doi: 10.1016/j.hrcr.2017.12.004. eCollection 2018 Jun.

No abstract available.

Signal-averaged electrocardiography: Past, present, and future.

Journal of arrhythmia

Gatzoulis KA, Arsenos P, Trachanas K, Dilaveris P, Antoniou C, Tsiachris D, Sideris S, Kolettis TM, Tousoulis D.
PMID: 29951136
J Arrhythm. 2018 May 28;34(3):222-229. doi: 10.1002/joa3.12062. eCollection 2018 Jun.

Signal-averaged electrocardiography records delayed depolarization of myocardial areas with slow conduction that can form the substrate for monomorphic ventricular tachycardia. This technique has been examined mostly in patients with coronary artery disease, but its use has been declined over...

Local conduction during acute myocardial infarction in rats: Interplay between central sympathetic activation and endothelin.

Journal of arrhythmia

Kolettis TM, Kontonika M, La Rocca V, Vlahos AP, Baltogiannis GG, Kyriakides ZS.
PMID: 28416983
J Arrhythm. 2017 Apr;33(2):144-146. doi: 10.1016/j.joa.2016.07.010. Epub 2016 Aug 31.

We investigated the effects of autonomic dysfunction and endothelin on local conduction and arrhythmogenesis during myocardial infarction. We recorded ventricular tachyarrhythmias, monophasic action potentials, and activation sequences in wild-type and ET

Transforming growth factor-β inhibition attenuates pulmonary arterial hypertension in rats.

International journal of clinical and experimental medicine

Megalou AJ, Glava C, Oikonomidis DL, Vilaeti A, Agelaki MG, Baltogiannis GG, Papalois A, Vlahos AP, Kolettis TM.
PMID: 21072267
Int J Clin Exp Med. 2010 Oct 23;3(4):332-40.

The role of transforming growth factor-β in the pathogenesis of pulmonary arterial hypertension is unclear. We examined the effects of T9429, an antibody against transforming growth factor-β receptors, on hemodynamic, histological and functional parameters in the rat model of...

Torsade de Pointes and Persistent QTc Prolongation after Intravenous Amiodarone.

Case reports in medicine

Kotsia AP, Dimitriadis G, Baltogiannis GG, Kolettis TM.
PMID: 22474460
Case Rep Med. 2012;2012:673019. doi: 10.1155/2012/673019. Epub 2012 Mar 05.

We report a case of torsade de pointes after intravenous amiodarone and concurrent hypokalemia. Despite treatment cessation and correction of electrolyte abnormalities, excessive QTc prolongation was noted, which persisted for 14 days. This prolonged course for QTc normalization may...

Transforming growth factor-β inhibition and endothelin receptor blockade in rats with monocrotaline-induced pulmonary hypertension.

Pulmonary circulation

Megalou AJ, Glava C, Vilaeti AD, Oikonomidis DL, Baltogiannis GG, Papalois A, Vlahos AP, Kolettis TM.
PMID: 23372930
Pulm Circ. 2012 Oct;2(4):461-9. doi: 10.4103/2045-8932.105034.

Transforming growth factor-β (TGF-β) inhibition is an investigational therapy for pulmonary arterial hypertension with promising results in experimental studies. The present work compared this approach with endothelin-receptor blockade and evaluated the effects of combined administration. Pulmonary arterial hypertension was...

CPVT: Arrhythmogenesis, Therapeutic Management, and Future Perspectives. A Brief Review of the Literature.

Frontiers in cardiovascular medicine

Baltogiannis GG, Lysitsas DN, di Giovanni G, Ciconte G, Sieira J, Conte G, Kolettis TM, Chierchia GB, de Asmundis C, Brugada P.
PMID: 31380394
Front Cardiovasc Med. 2019 Jul 12;6:92. doi: 10.3389/fcvm.2019.00092. eCollection 2019.

Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT) is a primary electrical disease characterized by a normal resting electrocardiogram and induction of malignant arrhythmias during adrenergic stress leading to syncope or sudden cardiac death (SCD). CPVT is caused by mutations in the...

Sympathetic Activation and Arrhythmogenesis after Myocardial Infarction: Where Do We Stand?.

Journal of cardiovascular development and disease

Zekios KC, Mouchtouri ET, Lekkas P, Nikas DN, Kolettis TM.
PMID: 34063477
J Cardiovasc Dev Dis. 2021 May 15;8(5). doi: 10.3390/jcdd8050057.

Myocardial infarction often leads to progressive structural and electrophysiologic remodeling of the left ventricle. Despite the widespread use of β-adrenergic blockade and implantable defibrillators, morbidity and mortality from chronic-phase ventricular tachyarrhythmias remains high, calling for further investigation on the...

Endothelin-B Receptors and Left Ventricular Dysfunction after Regional versus Global Ischaemia-Reperfusion in Rat Hearts.

Cardiology research and practice

Bibli SI, Toli EV, Vilaeti AD, Varnavas VC, Baltogiannis GG, Papalois A, Kyriakides ZS, Kolettis TM.
PMID: 22844633
Cardiol Res Pract. 2012;2012:986813. doi: 10.1155/2012/986813. Epub 2012 Jul 12.

Background. Endothelin-1 (ET-1) is implicated in left ventricular dysfunction after ischaemia-reperfusion. ETA and ETB receptors mediate diverse actions, but it is unknown whether these actions depend on ischaemia type and duration. We investigated the role of ETB receptors after...

Subclinical Hypothyroidism: An Overlooked Cause of Atrial Fibrillation?.

Journal of atrial fibrillation

Kolettis TM, Tsatsoulis A.
PMID: 28496796
J Atr Fibrillation. 2012 Dec 16;5(4):710. doi: 10.4022/jafib.710. eCollection 2012 Dec.

No abstract available.

Showing 13 to 24 of 25 entries