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Yokoyama M, Vlachos K, Kowalewski C, Pambrun T, Derval N, Jaïs P. Pulsed-field ablation of an atypical macroreentrant tachycardia in the right atrium. Heart Rhythm 2024; 21:270-273. [PMID: 38040403 DOI: 10.1016/j.hrthm.2023.11.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/20/2023] [Accepted: 11/26/2023] [Indexed: 12/03/2023]
Affiliation(s)
- Masaaki Yokoyama
- Hôpital Cardiologique du Haut-Léveque, CHU de Bordeaux, L'Institut de RYthmologie et Modélisation Cardiaque (LIRYC), Université de Bordeaux, Bordeaux, France.
| | - Konstantinos Vlachos
- Hôpital Cardiologique du Haut-Léveque, CHU de Bordeaux, L'Institut de RYthmologie et Modélisation Cardiaque (LIRYC), Université de Bordeaux, Bordeaux, France
| | - Christopher Kowalewski
- Hôpital Cardiologique du Haut-Léveque, CHU de Bordeaux, L'Institut de RYthmologie et Modélisation Cardiaque (LIRYC), Université de Bordeaux, Bordeaux, France
| | - Thomas Pambrun
- Hôpital Cardiologique du Haut-Léveque, CHU de Bordeaux, L'Institut de RYthmologie et Modélisation Cardiaque (LIRYC), Université de Bordeaux, Bordeaux, France
| | - Nicolas Derval
- Hôpital Cardiologique du Haut-Léveque, CHU de Bordeaux, L'Institut de RYthmologie et Modélisation Cardiaque (LIRYC), Université de Bordeaux, Bordeaux, France
| | - Pierre Jaïs
- Hôpital Cardiologique du Haut-Léveque, CHU de Bordeaux, L'Institut de RYthmologie et Modélisation Cardiaque (LIRYC), Université de Bordeaux, Bordeaux, France
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Bouyer B, Derval N, Pambrun T, Tixier R, Arnaud M, Buliard S, Chauvel R, Marchand H, Bouteiller X, Vlachos K, Ascione C, Yokoyama M, Kowalewski C, Hocini M, Jaïs P, Sacher F, Haïssaguerre M, Duchateau J. Local VA index for the differential diagnosis of supraventricular tachycardia. Heart Rhythm 2024:S1547-5271(24)00096-1. [PMID: 38286245 DOI: 10.1016/j.hrthm.2024.01.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/27/2023] [Accepted: 01/19/2024] [Indexed: 01/31/2024]
Abstract
BACKGROUND Differentiating between atypical atrioventricular nodal reentrant tachycardia (AVNRT) and orthodromic reciprocating tachycardia utilizing a septal accessory pathway is a complex challenge. OBJECTIVE The purpose of this study was to describe the "local VA index," a straightforward method based on signals from the coronary sinus catheter, to distinguish between these arrhythmias during tachycardia and entrainment. The ventriculoatrial (VA) interval on the coronary sinus catheter is measured during tachycardia and entrainment, at the site of earliest atrial activity. The difference between these 2 situations defines the "local VA index." We also propose a mechanism to clarify the limitations of historical pacing maneuvers, such as postpacing interval minus tachycardia cycle length (PPI-TCL) and stimulus-atrial interval minus ventriculoatrial interval (SA-VA), by examining nodal decrement and intraventricular conduction delay. METHODS In a retrospective study of 75 patients referred for supraventricular tachycardia evaluation, 37 were diagnosed with atrioventricular reentrant tachycardia (AVRT) with orthodromic reciprocating tachycardia, and 38 with AVNRT (27 typical, 11 atypical). RESULTS In comparison to AVRT patients, AVNRT patients exhibited longer PPI-TCL (176 ± 47 ms vs 113 ± 42 ms; P <.01) and SA-VA (138 ± 47 ms vs 64 ± 28 ms; P <.01). The AVRT group had mean local VA index of -1 ± 13 ms, whereas the AVNRT group had a significantly longer index of 91 ± 46 ms (P <.01). An optimal threshold for differentiation was a local VA index of 40 ms. Importantly, there was no significant correlation between pacing cycle length and nodal decrement as well as intraventricular delay related to pathway location. This interindividual variability might explain misleading interpretations of PPI-TCL and SA-VA. CONCLUSION This novel approach is advantageous because of its simplicity and effectiveness, requiring only 2 diagnostic catheters. A local VA interval difference <40 ms provides a clear distinction for AVRT.
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Affiliation(s)
- Benjamin Bouyer
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France.
| | - Nicolas Derval
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Thomas Pambrun
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Romain Tixier
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Marine Arnaud
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Samuel Buliard
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Rémi Chauvel
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Hugo Marchand
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Xavier Bouteiller
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Konstantinos Vlachos
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Ciro Ascione
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Masaaki Yokoyama
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Christopher Kowalewski
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Mélèze Hocini
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Pierre Jaïs
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Frederic Sacher
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Michel Haïssaguerre
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
| | - Josselin Duchateau
- Hôpital Cardiologique du Haut Lévêque, CHU Bordeaux, Pessac, France; IHU LIRYC (L'Institut de Rythmologie et Modélisation Cardiaque), Université de Bordeaux, Pessac, France
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Ascione C, Kowalewski C, Bergonti M, Yokoyama M, Monaco C, Bouyer B, Chauvel R, Arnaud M, Buliard S, Tixier R, Vlachos K, Krisai P, Kamakura T, Takagi T, Duchateau J, Pambrun T, Derval N, Hocini M, Haïssaguerre M, Jaïs P, Sacher F. Omnipolar versus bipolar mapping to guide ventricular tachycardia ablation. Heart Rhythm 2023; 20:1370-1377. [PMID: 37414109 DOI: 10.1016/j.hrthm.2023.06.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/25/2023] [Accepted: 06/29/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND Omnipolar technology (OT) was recently proposed to generate electroanatomic voltage maps with orientation-independent electrograms. We describe the first cohort of patients undergoing ventricular tachycardia (VT) ablation guided by OT. OBJECTIVE The purpose of this study was to compare omnipolar and bipolar high-density maps with regard to voltage amplitude, late potential (LP) annotation, and isochronal late activation mapping distribution. METHODS A total of 24 patients (16 [66%] ischemic cardiomyopathy and 12 [50%] redo cases) underwent VT ablation under OT guidance. Twenty-seven sinus rhythm substrate maps and 10 VT activation maps were analyzed. Omnipolar and bipolar (HD Wave Solution algorithm, Abbott, Abbott Park, IL) voltages were compared. Areas of LPs were correlated with the VT isthmus areas, and late electrogram misannotation was evaluated. Deceleration zones based on isochronal late activation maps were analyzed by 2 blinded operators and compared to the VT isthmuses. RESULTS OT maps had higher point density (13.8 points/cm2 vs 8.0 points/cm2). Omnipolar points had 7.1% higher voltages than bipolar points within areas of dense scar and border zone. The number of misannotated points was significantly lower for OT maps (6.8% vs 21.9%; P = .01), showing comparable sensitivity (53% vs 59%) but higher specificity (79% vs 63%). The sensitivity and specificity of detection of the VT isthmus in the deceleration zones were, respectively, 75% and 65% for OT and 35% and 55% for bipolar mapping. At 8.4 months, 71% freedom from VT recurrence was achieved. CONCLUSION OT is a valuable tool for guiding VT ablation, providing more accurate identification of LPs and isochronal crowding due to slightly higher voltages.
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Affiliation(s)
- Ciro Ascione
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France.
| | - Christopher Kowalewski
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Marco Bergonti
- Division of Cardiology, Cardiocentro Ticino Institute, Lugano, Switzerland
| | - Masaaki Yokoyama
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Cinzia Monaco
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Benjamin Bouyer
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Rémi Chauvel
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Marine Arnaud
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Samuel Buliard
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Romain Tixier
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Konstantinos Vlachos
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Philipp Krisai
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Tsukasa Kamakura
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Takamitsu Takagi
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Josselin Duchateau
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Thomas Pambrun
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Nicolas Derval
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Mélèze Hocini
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Michel Haïssaguerre
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Pierre Jaïs
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
| | - Frederic Sacher
- Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac arrhythmia department, INSERM, U 1045, Bordeaux, France
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4
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Bouyer B, Jalal Z, Daniel Ramirez F, Derval N, Iriart X, Duchateau J, Roubertie F, Tafer N, Tixier R, Pambrun T, Cheniti G, Ascione C, Yokoyama M, Kowalewski C, Buliard S, Chauvel R, Arnaud M, Hocini M, Haïssaguerre M, Jaïs P, Cochet H, Thambo JB, Sacher F. Electrophysiological study prior to planned pulmonary valve replacement in patients with repaired tetralogy of Fallot. J Cardiovasc Electrophysiol 2023; 34:1395-1404. [PMID: 37232426 DOI: 10.1111/jce.15940] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/27/2023] [Accepted: 05/12/2023] [Indexed: 05/27/2023]
Abstract
AIM Ventricular arrhythmias (VAs) are the most common cause of death in patients with repaired Tetralogy of Fallot (rTOF). However, risk stratifying remains challenging. We examined outcomes following programmed ventricular stimulation (PVS) with or without subsequent ablation in patients with rTOF planned for pulmonary valve replacement (PVR). METHODS We included all consecutive patients with rTOF referred to our institution from 2010 to 2018 aged ≥18 years for PVR. Right ventricular (RV) voltage maps were acquired and PVS was performed from two different sites at baseline, and if non-inducible under isoproterenol. Catheter and/or surgical ablation was performed when patients were inducible or when slow conduction was present in anatomical isthmuses (AIs). Postablation PVS was undertaken to guide implantable cardioverter-defibrillator (ICD) implantation. RESULTS Seventy-seven patients (36.2 ± 14.3 years old, 71% male) were included. Eighteen were inducible. In 28 patients (17 inducible, 11 non-inducible but with slow conduction) ablation was performed. Five had catheter ablation, surgical cryoablation in 9, both techniques in 14. ICDs were implanted in five patients. During a follow-up of 74 ± 40 months, no sudden cardiac death occurred. Three patients experienced sustained VAs, all were inducible during the initial EP study. Two of them had an ICD (low ejection fraction for one and important risk factor for arrhythmia for the second). No VAs were reported in the non-inducible group (p < .001). CONCLUSION Preoperative EPS can help identifying patients with rTOF at risk for VAs, providing an opportunity for targeted ablation and may improve decision-making regarding ICD implantation.
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Affiliation(s)
- Benjamin Bouyer
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Zakaria Jalal
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
- Department of Congenital Heart Disease, Bordeaux University Hospital (CHU), Bordeaux, France
| | | | - Nicolas Derval
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Xavier Iriart
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
- Department of Congenital Heart Disease, Bordeaux University Hospital (CHU), Bordeaux, France
| | - Josselin Duchateau
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - François Roubertie
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
- Department of Congenital Heart Disease, Bordeaux University Hospital (CHU), Bordeaux, France
| | - Nadir Tafer
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
- Department of Congenital Heart Disease, Bordeaux University Hospital (CHU), Bordeaux, France
| | - Romain Tixier
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Thomas Pambrun
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Ghassen Cheniti
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Ciro Ascione
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Masaaki Yokoyama
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Christopher Kowalewski
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Samuel Buliard
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Rémi Chauvel
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Marine Arnaud
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Mélèze Hocini
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Michel Haïssaguerre
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Pierre Jaïs
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Hubert Cochet
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
- Department of Radiology, Bordeaux University Hospital (CHU), Bordeaux, France
| | - Jean-Benoit Thambo
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
- Department of Congenital Heart Disease, Bordeaux University Hospital (CHU), Bordeaux, France
| | - Frederic Sacher
- Department of Cardiac Pacing and Electrophysiology, Bordeaux University Hospital (CHU), Bordeaux, France
- IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
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5
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Kowalewski C, Ascione C, Nuñez-Garcia M, Ly B, Sermesant M, Bustin A, Sridi S, Bouteiller X, Yokoyama M, Vlachos K, Monaco C, Bouyer B, Buliard S, Arnaud M, Tixier R, Chauvel R, Derval N, Pambrun T, Duchateau J, Bordachar P, Hocini M, Hindricks G, Haïssaguerre M, Sacher F, Jais P, Cochet H. Advanced Imaging Integration for Catheter Ablation of Ventricular Tachycardia. Curr Cardiol Rep 2023; 25:535-542. [PMID: 37115434 DOI: 10.1007/s11886-023-01872-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/23/2023] [Indexed: 04/29/2023]
Abstract
PURPOSE OF REVIEW Imaging plays a crucial role in the therapy of ventricular tachycardia (VT). We offer an overview of the different methods and provide information on their use in a clinical setting. RECENT FINDINGS The use of imaging in VT has progressed recently. Intracardiac echography facilitates catheter navigation and the targeting of moving intracardiac structures. Integration of pre-procedural CT or MRI allows for targeting the VT substrate, with major expected impact on VT ablation efficacy and efficiency. Advances in computational modeling may further enhance the performance of imaging, giving access to pre-operative simulation of VT. These advances in non-invasive diagnosis are increasingly being coupled with non-invasive approaches for therapy delivery. This review highlights the latest research on the use of imaging in VT procedures. Image-based strategies are progressively shifting from using images as an adjunct tool to electrophysiological techniques, to an integration of imaging as a central element of the treatment strategy.
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Affiliation(s)
- Christopher Kowalewski
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France.
| | - Ciro Ascione
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Marta Nuñez-Garcia
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Buntheng Ly
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Maxime Sermesant
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Aurélien Bustin
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Soumaya Sridi
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Xavier Bouteiller
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Masaaki Yokoyama
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Konstantinos Vlachos
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Cinzia Monaco
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Benjamin Bouyer
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Samuel Buliard
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Marine Arnaud
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Romain Tixier
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Remi Chauvel
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Nicolas Derval
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Thomas Pambrun
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Josselin Duchateau
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Pierre Bordachar
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Mélèze Hocini
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Gerhard Hindricks
- Department of Cardiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Michel Haïssaguerre
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Frédéric Sacher
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Pierre Jais
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Hubert Cochet
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L'Institut de RYthmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
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Ascione C, Kowalewski C, Pambrun T, Derval N, Jaïs P. A Posterior Wall Resistant to Electroporation Finally Blocked With Vein of Marshall Ethanol Infusion. JACC Clin Electrophysiol 2023; 9:729-732. [DOI: 10.1016/j.jacep.2022.12.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 02/24/2023]
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Borradori L, Van Beek N, Feliciani C, Tedbirt B, Antiga E, Bergman R, Böckle BC, Caproni M, Caux F, Chandran NS, Cianchini G, Daneshpazhooh M, De D, Didona D, Di Zenzo GM, Dmochowski M, Drenovska K, Ehrchen J, Goebeler M, Groves R, Günther C, Horvath B, Hertl M, Hofmann S, Ioannides D, Itzlinger-Monshi B, Jedličková J, Kowalewski C, Kridin K, Lim YL, Marinovic B, Marzano AV, Mascaro JM, Meijer JM, Murrell D, Patsatsi K, Pincelli C, Prost C, Rappersberger K, Sárdy M, Setterfield J, Shahid M, Sprecher E, Tasanen K, Uzun S, Vassileva S, Vestergaard K, Vorobyev A, Vujic I, Wang G, Wozniak K, Yayli S, Zambruno G, Zillikens D, Schmidt E, Joly P. Updated S2 K guidelines for the management of bullous pemphigoid initiated by the European Academy of Dermatology and Venereology (EADV). J Eur Acad Dermatol Venereol 2022; 36:1689-1704. [PMID: 35766904 DOI: 10.1111/jdv.18220] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 05/04/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Bullous pemphigoid (BP) is the most common autoimmune subepidermal blistering disease of the skin and mucous membranes. This disease typically affects the elderly and presents with itch and localized or, most frequently, generalized bullous lesions. A subset of patients only develops excoriations, prurigo-like lesions, and eczematous and/or urticarial erythematous lesions. The disease, which is significantly associated with neurological disorders, has high morbidity and severely impacts the quality of life. OBJECTIVES AND METHODOLOGY The Autoimmune blistering diseases Task Force of the European Academy of Dermatology and Venereology sought to update the guidelines for the management of BP based on new clinical information, and new evidence on diagnostic tools and interventions. The recommendations are either evidence-based or rely on expert opinion. The degree of consent among all task force members was included. RESULTS Treatment depends on the severity of BP and patients' comorbidities. High-potency topical corticosteroids are recommended as the mainstay of treatment whenever possible. Oral prednisone at a dose of 0.5 mg/kg/day is a recommended alternative. In case of contraindications or resistance to corticosteroids, immunosuppressive therapies, such as methotrexate, azathioprine, mycophenolate mofetil or mycophenolate acid, may be recommended. The use of doxycycline and dapsone is controversial. They may be recommended, in particular, in patients with contraindications to oral corticosteroids. B-cell-depleting therapy and intravenous immunoglobulins may be considered in treatment-resistant cases. Omalizumab and dupilumab have recently shown promising results. The final version of the guideline was consented to by several patient organizations. CONCLUSIONS The guidelines for the management of BP were updated. They summarize evidence- and expert-based recommendations useful in clinical practice.
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Affiliation(s)
- L Borradori
- Department of Dermatology, Inselspital, Bern University Hospital, Bern, Switzerland
| | - N Van Beek
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - C Feliciani
- Dermatology Unit, Department of Medicine and Surgery, University Hospital, University of Parma, Italy
| | - B Tedbirt
- Department of Dermatology, Rouen University Hospital, Referral Center for Autoimmune Bullous Diseases, Referral Center for Autoimmune Bullous Diseases, Rouen University Hospital, INSERM U1234, Normandie University, Rouen, France
| | - E Antiga
- Section of Dermatology, Department of Health Sciences, University of Florence, Florence, Italy
| | - R Bergman
- Department of Dermatology, Rambam Health Care Campus, Haifa, Israel.,Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - B C Böckle
- Department of Dermatology, Venereology & Allergology, Innsbruck Medical University, Innsbruck, Austria
| | - M Caproni
- Department of Health Sciences, Section of Dermatology, AUSL Toscana Centro, Rare Diseases Unit, European Reference Network-Skin Member, University of Florence, Italy
| | - F Caux
- Department of Dermatology and Referral Center for Autoimmune Bullous Diseases, Groupe Hospitalier Paris Seine-Saint-Denis, AP-HP and University Paris 13, Bobigny, France
| | - N S Chandran
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - G Cianchini
- Department of Dermatology, Ospedale Classificato Cristo Re, Rome, Italy
| | - M Daneshpazhooh
- Department of Dermatology, Autoimmune Bullous Diseases Research Center, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - D De
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - D Didona
- Department of Dermatology and Allergology, Philipps University, Marburg, Germany
| | - G M Di Zenzo
- Laboratory of Molecular and Cell Biology, Istituto Dermopatico dell'Immacolata, IDI-IRCCS, Rome, Italy
| | - M Dmochowski
- Autoimmune Blistering Dermatoses Section, Department of Dermatology, Poznan University of Medical Sciences, Poznan, Poland
| | - K Drenovska
- Department of Dermatology, Medical University of Sofia, Sofia, Bulgaria
| | - J Ehrchen
- Department of Dermatology, University of Münster, Münster, Germany
| | - M Goebeler
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - R Groves
- St. John's Institute of Dermatology, Viapath Analytics LLP, St. Thomas' Hospital, London, UK.,Division of Genetics and Molecular Medicine, King's College London, Guy's Hospital, London, UK
| | - C Günther
- Department of Dermatology, Carl Gustav Carus University Hospital, Technische Universität Dresden, Dresden, Germany
| | - B Horvath
- Department of Dermatology, Center for Blistering Diseases, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - M Hertl
- Department of Dermatology and Allergology, Philipps University, Marburg, Germany
| | - S Hofmann
- Department of Dermatology, Allergy and Dermatosurgery, Helios University Hospital Wuppertal, University Witten, Herdecke, Germany
| | - D Ioannides
- 1st Department of Dermatology-Venereology, Hospital of Skin and Venereal Diseases, Aristotle University Medical School, Thessaloniki, Greece
| | - B Itzlinger-Monshi
- Department of Dermatology, Venereology and Allergy, Clinical Center Landstrasse, Academic Teaching Hospital of the Medical University of Vienna, Vienna, Austria.,Medical Faculty, The Sigmund Freud Private University, Vienna, Austria
| | - J Jedličková
- Department of Dermatovenereology, Masaryk University, University Hospital St. Anna, Brno.,Department of Dermatovenereology, University Hospital Brno, Brno, Czech Republic
| | - C Kowalewski
- Department Dermatology and Immunodermatology, Medical University of Warsaw, Warsaw, Poland
| | - K Kridin
- National Skin Centre, Singapore, Singapore
| | - Y L Lim
- Department of Dermatology and Venereology, School of Medicine, University Hospital Centre Zagreb, University of Zagreb, Zagreb, Croatia
| | - B Marinovic
- Dermatology Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - A V Marzano
- Dermatology Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - J-M Mascaro
- Department of Dermatology, Hospital Clínic de Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - J M Meijer
- Department of Dermatology, Center for Blistering Diseases, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - D Murrell
- Department of Dermatology, St George Hospital, University of New South Wales, Sydney, New South Wales, Australia
| | - K Patsatsi
- 2nd Department of Dermatology, Autoimmune Bullous Diseases Unit, Aristotle University School of Medicine, Papageorgiou General Hospital, Thessaloniki, Greece
| | - C Pincelli
- DermoLab, Institute of Dermatology, University of Modena and Reggio Emilia, Modena, Italy
| | - C Prost
- Department of Dermatology and Referral Center for Autoimmune Bullous Diseases, Groupe Hospitalier Paris Seine-Saint-Denis, AP-HP and University Paris 13, Bobigny, France
| | - K Rappersberger
- Department of Dermatology, Venereology and Allergy, Clinical Center Landstrasse, Academic Teaching Hospital of the Medical University of Vienna, Vienna, Austria.,Medical Faculty, The Sigmund Freud Private University, Vienna, Austria.,Abteilung Dermatologie, Venerologie und Allergologie, Lehrkrankenhaus der Medizinischen Universität Wien, Austria
| | - M Sárdy
- Department of Dermatology and Allergology, Ludwig Maximilian University, Munich, Germany.,Department of Dermatology, Venereology and Dermatooncology, Semmelweis University, Budapest, Hungary
| | - J Setterfield
- Department of Oral Medicine, St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - M Shahid
- Department of Dermatology, Medical University, Sofia, Bulgaria
| | - E Sprecher
- Division of Dermatology, Tel Aviv Sourasky Medical Center and Department of Human Molecular Genetics & Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - K Tasanen
- Department of Dermatology, the PEDEGO Research Unit, University of Oulu and Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland
| | - S Uzun
- Department of Dermatology and Venereology, Akdeniz University Faculty of Medicine, Antalya, Turkey
| | - S Vassileva
- Department of Dermatology, Medical University, Sofia, Bulgaria
| | - K Vestergaard
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
| | - A Vorobyev
- Department of Dermatology, University of Lübeck, Lübeck, Germany.,Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
| | - I Vujic
- Department of Dermatology, Venereology and Allergy, Clinical Center Landstrasse, Academic Teaching Hospital of the Medical University of Vienna, Vienna, Austria.,Medical Faculty, The Sigmund Freud Private University, Vienna, Austria
| | - G Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - K Wozniak
- National Skin Centre, Singapore, Singapore
| | - S Yayli
- Department of Dermatology, School of Medicine, Koç University, Istanbul, Turkey
| | - G Zambruno
- Genetics and Rare Diseases Research Division, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - D Zillikens
- Department of Dermatology, University of Lübeck, Lübeck, Germany.,Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
| | - E Schmidt
- Department of Dermatology, University of Lübeck, Lübeck, Germany.,Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - P Joly
- Department of Dermatology, Rouen University Hospital, Referral Center for Autoimmune Bullous Diseases, Referral Center for Autoimmune Bullous Diseases, Rouen University Hospital, INSERM U1234, Normandie University, Rouen, France
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Nedios S, Iliodromitis K, Kowalewski C, Bollmann A, Hindricks G, Dagres N, Bogossian H. Erratum to: Big Data in electrophysiology. Herzschrittmacherther Elektrophysiol 2022; 33:242. [PMID: 35353222 DOI: 10.1007/s00399-022-00850-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Sotirios Nedios
- Department of Electrophysiology, Heart Center Leipzig at the University of Leipzig, Leipzig, Germany.
- Rhythmologie, Herzzentrum Leipzig, Universität Leipzig, Strümpellstr. 39, 04289, Leipzig, Germany.
| | - Konstantinos Iliodromitis
- Department of Cardiology and Rhythmology, Ev. Krankenhaus Hagen, Hagen, Germany
- Department of Cardiology, University Witten/Herdecke, Witten, Germany
| | - Christopher Kowalewski
- Department of Electrophysiology, Heart Center Leipzig at the University of Leipzig, Leipzig, Germany
| | - Andreas Bollmann
- Department of Electrophysiology, Heart Center Leipzig at the University of Leipzig, Leipzig, Germany
| | - Gerhard Hindricks
- Department of Electrophysiology, Heart Center Leipzig at the University of Leipzig, Leipzig, Germany
| | - Nikolaos Dagres
- Department of Electrophysiology, Heart Center Leipzig at the University of Leipzig, Leipzig, Germany
| | - Harilaos Bogossian
- Department of Cardiology and Rhythmology, Ev. Krankenhaus Hagen, Hagen, Germany
- Department of Cardiology, University Witten/Herdecke, Witten, Germany
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Kowalewski C, Dagres N, Hindricks G. Are 2 Left Atrial Appendage Guards Better Than 1? The Amulet IDE Randomized Trial. Circulation 2022; 145:739-741. [PMID: 35254920 DOI: 10.1161/circulationaha.122.058108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Christopher Kowalewski
- Heart Center Leipzig at University Leipzig, Department of Cardiology and Electrophysiology, HELIOS Kliniken GmbH, Leipzig, Germany
| | - Nikolaos Dagres
- Heart Center Leipzig at University Leipzig, Department of Cardiology and Electrophysiology, HELIOS Kliniken GmbH, Leipzig, Germany
| | - Gerhard Hindricks
- Heart Center Leipzig at University Leipzig, Department of Cardiology and Electrophysiology, HELIOS Kliniken GmbH, Leipzig, Germany
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Nedios S, Iliodromitis K, Kowalewski C, Bollmann A, Hindricks G, Dagres N, Bogossian H. Big Data in electrophysiology. Herzschrittmacherther Elektrophysiol 2022; 33:26-33. [PMID: 35137276 DOI: 10.1007/s00399-022-00837-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
The quantity of data produced and captured in medicine today is unprecedented. Technological improvements and automation have expanded the traditional statistical methods and enabled the analysis of Big Data. This has permitted the discovery of new associations with a granularity that was previously hidden to human eyes. In the first part of this review, the authors would like to provide an overview of basic Machine Learning (ML) principles and techniques in order to better understand their application in recent publications about cardiac arrhythmias. In the second part, ML-enabled advances in disease detection and diagnosis, outcome prediction, and novel disease characterization in topics like electrocardiography, atrial fibrillation, ventricular arrhythmias, and cardiac devices are presented. Finally, the limitations and challenges of applying ML in clinical practice, such as validation, replication, generalizability, and regulatory issues, are discussed. More carefully designed studies and collaborations are needed for ML to become feasible, trustworthy, accurate, and reproducible and to reach its full potential for patient-oriented precision medicine.
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Affiliation(s)
- Sotirios Nedios
- Department of Electrophysiology, Heart Center Leipzig at the University of Leipzig, Leipzig, Germany.
- Rhythmologie, Herzzentrum Leipzig, Universität Leipzig, Strümpellstr. 39, 04289, Leipzig, Germany.
| | - Konstantinos Iliodromitis
- Department of Cardiology and Rhythmology, Ev. Krankenhaus Hagen, Hagen, Germany
- Department of Cardiology, University Witten/Herdecke, Witten, Germany
| | - Christopher Kowalewski
- Department of Electrophysiology, Heart Center Leipzig at the University of Leipzig, Leipzig, Germany
| | - Andreas Bollmann
- Department of Electrophysiology, Heart Center Leipzig at the University of Leipzig, Leipzig, Germany
| | - Gerhard Hindricks
- Department of Electrophysiology, Heart Center Leipzig at the University of Leipzig, Leipzig, Germany
| | - Nikolaos Dagres
- Department of Electrophysiology, Heart Center Leipzig at the University of Leipzig, Leipzig, Germany
| | - Harilaos Bogossian
- Department of Cardiology and Rhythmology, Ev. Krankenhaus Hagen, Hagen, Germany
- Department of Cardiology, University Witten/Herdecke, Witten, Germany
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Abstract
Mechanisms sustaining atrial fibrillation are yet to be clarified. This article focuses on milestones in the theory of atrial fibrillation and addresses the different leading hypotheses concerning atrial fibrillation mechanisms. We start off with electric potential originating from the pulmonary vein, which triggers atrial fibrillation, discuss classic activation mapping and phase mapping as well as computer models, which have contributed to the our understanding of atrial fibrillation, and end with new mapping methods and studies highlighting the advantages and disadvantages of current mechanistic hypotheses. The technical evolution of mapping atrial fibrillation has led to new insights into the potential mechanisms underlying atrial fibrillation. A comparison between methods is essential for understanding the advantages and disadvantages of each method when mapping atrial fibrillation. Ultimately, the combination of several methods might shed light on the underlying mechanisms of atrial fibrillation and lead to a better understanding of atrial fibrillation and subsequently improve treatment of this condition.
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12
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Joly P, Horvath B, Patsatsi Α, Uzun S, Bech R, Beissert S, Bergman R, Bernard P, Borradori L, Caproni M, Caux F, Cianchini G, Daneshpazhooh M, De D, Dmochowski M, Drenovska K, Ehrchen J, Feliciani C, Goebeler M, Groves R, Guenther C, Hofmann S, Ioannides D, Kowalewski C, Ludwig R, Lim Y, Marinovic B, Marzano A, Mascaró J, Mimouni D, Murrell D, Pincelli C, Squarcioni C, Sárdy M, Setterfield J, Sprecher E, Vassileva S, Wozniak K, Yayli S, Zambruno G, Zillikens D, Hertl M, Schmidt E. Updated S2K guidelines on the management of pemphigus vulgaris and foliaceus initiated by the european academy of dermatology and venereology (EADV). J Eur Acad Dermatol Venereol 2020; 34:1900-1913. [DOI: 10.1111/jdv.16752] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 05/29/2020] [Indexed: 01/21/2023]
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Pliszczyński J, Nita M, Kowalewski C, Woźniak K, Eljaszewicz A, Moniuszko M, Kamiński A, Śladowski D, Zimek Z, Majewski S, Kosieradzki M, Fiedor P. Transplantation of a New Biological Product in Rare Diseases, Such as Epidermolysis Bullosa: Response and Clinical Outcome. Transplant Proc 2020; 52:2239-2243. [PMID: 32334796 DOI: 10.1016/j.transproceed.2020.02.119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 02/13/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND Epidermolysis bullosa (EB) is a phenotypically diverse group of hereditary blistering disorders involving mutations in 20 different genes. Those debilitating disorders are currently incurable; however, there are a number of promising preclinical trials, where some treatments already approach the stage of early clinical trial. In this paper we introduce a novel surgical approach to the treatment of EB-induced ulcerations. The purpose of our study was to evaluate the safety and efficacy of a new biological dressing in the form of an allogenic human skin equivalent graft before using multipotent stem cells, classified as an advanced therapy medicinal product. METHODS Implanted human acellular dermal matrices were prepared from the superficial layers of donated human skin. Scaffold sterilization was conducted via irradiation with the use of a linear electron accelerator. Following water-knife debridement, wounds were surgically covered with accordingly prepared grafts and dressed in burn-injury fashion. Subsequently, the wounds were monitored for infection and viability. RESULTS Our data indicate that grafting as a potential new medicinal product was safe and effective in patients with rare diseases, such as EB, and may be used for stem cells to create new Advanced Therapy Medicinal Products. During a 200-day follow-up, we proved the safety of using human scaffolds (allogeneic graft) by observing no apparent infection or necrosis. Instead, we noted fewer required dressing changes, promoted wound healing, pain reduction, and an overall improvement in the quality of life in patients with EB. CONCLUSION The protocol for grafting allogenic acellular epidermal sheets is the most promising treatment for severely affected skin areas in EB patients to date.
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Affiliation(s)
- J Pliszczyński
- Department of General and Transplantation Surgery, Medical University of Warsaw, Warsaw, Poland
| | - M Nita
- Department of General and Transplantation Surgery, Medical University of Warsaw, Warsaw, Poland
| | - C Kowalewski
- Department of Dermatology, Medical University of Warsaw, Warsaw Poland
| | - K Woźniak
- Department of Dermatology, Medical University of Warsaw, Warsaw Poland
| | - A Eljaszewicz
- Department of Regenerative Medicine and Immune Regulation, Medical University of Białystok, Białystok, Poland
| | - M Moniuszko
- Department of Regenerative Medicine and Immune Regulation, Medical University of Białystok, Białystok, Poland; Department of Allergology and Internal Medicine, Medical University of Białystok, Białystok, Poland
| | - A Kamiński
- Department of Transplantology and Central Tissue Bank, Medical University of Warsaw, Warsaw, Poland
| | - D Śladowski
- Department of Transplantology and Central Tissue Bank, Medical University of Warsaw, Warsaw, Poland
| | - Z Zimek
- Department of Radiation Chemistry and Technology, Institute of Nuclear Chemistry and Technology, Warsaw, Poland
| | - S Majewski
- Department of Dermatology, Medical University of Warsaw, Warsaw Poland
| | - M Kosieradzki
- Department of General and Transplantation Surgery, Medical University of Warsaw, Warsaw, Poland
| | - P Fiedor
- Department of General and Transplantation Surgery, Medical University of Warsaw, Warsaw, Poland.
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Sawicka J, Kutkowska-Kaźmierczak A, Woźniak K, Tysarowski A, Osipowicz K, Poznański J, Rygiel AM, Braun-Walicka N, Niepokój K, Bal J, Kowalewski C, Wertheim-Tysarowska K. Novel and recurrent variants of ATP2C1 identified in patients with Hailey-Hailey disease. J Appl Genet 2020; 61:187-193. [PMID: 31983024 PMCID: PMC7148260 DOI: 10.1007/s13353-020-00538-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 10/22/2019] [Accepted: 01/03/2020] [Indexed: 11/30/2022]
Abstract
Hailey-Hailey disease (HHD) is a rare, late-onset autosomal dominant genodermatosis characterized by blisters, vesicular lesions, crusted erosions, and erythematous scaly plaques predominantly in intertriginous regions. HHD is caused by ATP2C1 mutations. About 180 distinct mutations have been identified so far; however, data of only few cases from Central Europe are available. The aim was to analyze the ATP2C1 gene in a cohort of Polish HHD patients. A group of 18 patients was enrolled in the study based on specific clinical symptoms. Mutations were detected using Sanger or next generation sequencing. In silico analysis was performed by prediction algorisms and dynamic structural modeling. In two cases, mRNA analysis was performed to confirm aberrant splicing. We detected 13 different mutations, including 8 novel, 2 recurrent (p.Gly850Ter and c.325-3 T > G), and 6 sporadic (c.423-1G > T, c.899 + 1G > A, p.Leu539Pro, p.Thr808TyrfsTer16, p.Gln855Arg and a complex allele: c.[1610C > G;1741 + 3A > G]). In silico analysis shows that all novel missense variants are pathogenic or likely pathogenic. We confirmed pathogenic status for two novel variants c.325-3 T > G and c.[1610C > G;1741 + 3A > G] by mRNA analysis. Our results broaden the knowledge about genetic heterogeneity in Central European patients with ATP2C1 mutations and also give further evidence that careful and multifactorial evaluation of variant pathogenicity status is essential.
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Affiliation(s)
- J Sawicka
- Medical Genetics Department, Institute of Mother and Child, Kasprzaka 17a, 01-211, Warsaw, PL, Poland
| | - A Kutkowska-Kaźmierczak
- Medical Genetics Department, Institute of Mother and Child, Kasprzaka 17a, 01-211, Warsaw, PL, Poland
| | - K Woźniak
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Koszykowa 82A, 00-001, Warsaw, PL, Poland
| | - A Tysarowski
- Translational and Molecular Oncology Department, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, W. K. Roentgena 5, 02-781, Warsaw, PL, Poland
| | - K Osipowicz
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Koszykowa 82A, 00-001, Warsaw, PL, Poland
| | - J Poznański
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5A, 02-106, Warsaw, PL, Poland
| | - A M Rygiel
- Medical Genetics Department, Institute of Mother and Child, Kasprzaka 17a, 01-211, Warsaw, PL, Poland
| | - N Braun-Walicka
- Medical Genetics Department, Institute of Mother and Child, Kasprzaka 17a, 01-211, Warsaw, PL, Poland
| | - K Niepokój
- Medical Genetics Department, Institute of Mother and Child, Kasprzaka 17a, 01-211, Warsaw, PL, Poland
| | - J Bal
- Medical Genetics Department, Institute of Mother and Child, Kasprzaka 17a, 01-211, Warsaw, PL, Poland
| | - C Kowalewski
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Koszykowa 82A, 00-001, Warsaw, PL, Poland
| | - K Wertheim-Tysarowska
- Medical Genetics Department, Institute of Mother and Child, Kasprzaka 17a, 01-211, Warsaw, PL, Poland.
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15
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Kalinska-Bienias A, Piotrowski T, Kowalczyk E, Lesniewska A, Kaminska M, Jagielski P, Kowalewski C, Wozniak K. Actigraphy-measured nocturnal wrist movements and assessment of sleep quality in patients with bullous pemphigoid: a pilot case-control study. Clin Exp Dermatol 2019; 44:759-765. [PMID: 30652344 DOI: 10.1111/ced.13902] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/15/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Bullous pemphigoid (BP) is a distressing autoimmune bullous disease strongly associated with severe pruritus; however, data concerning pruritus in BP are still scarce. No clinical research evaluating the effect of BP on sleep quality has been conducted. AIM To evaluate the intensity of pruritus measured by nocturnal wrist movements (NWMs) and the sleep quality in patients with BP using actigraphy in comparison with nonpruritic healthy controls (HCs) with subsequent correlations with an itch visual analogue scale (VAS) as a subjective measure, disease severity [Bullous Pemphigoid Disease Area Index (BPDAI), urticaria/erythema, erosions/blisters] and serum total IgE level. METHODS In total, 31 patients with newly diagnosed BP (mean ± SD age 75.4 ± 12.3 years) and 40 nonpruritic HCs (age 73.5 ± 11.7 years) were recruited. All participants wore a sleep monitor (ActiSleep+) on the dominant wrist. RESULTS For patients with BP, median VAS score was 5.5 and median BPDAI was 43 (urticaria/erythema BPDAI was 16, erosions/blisters BPDAI was 29). Scratching, defined as bouts of NWMs, was significantly (P < 0.001) more intensive in patients with BP than in controls. Characteristic of BP was that scratching bouts corresponded with the slowest wrist movements. There were no correlations with VAS, BPDAI or total IgE level. Compared with HCs, patients with BP presented significant (P < 0.001) sleep disturbances, as determined by sleep efficiency, waking after sleep onset and average duration of awakening, and these were strongly correlated with urticaria/erythema BPDAI. CONCLUSION Nocturnal wrist movements measured by actigraphy are more intensive in patients with BP than in nonpruritic HCs, and characteristically slow movements. Actigraphy method showed very low sleep quality in patients with BP, thus severity of BP has a negative impact on sleep.
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Affiliation(s)
- A Kalinska-Bienias
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Warsaw, Poland
| | - T Piotrowski
- Department of Psychiatry, Medical University of Warsaw, Warsaw, Poland
| | - E Kowalczyk
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Warsaw, Poland
| | - A Lesniewska
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Warsaw, Poland
| | - M Kaminska
- Department of Dermatology and Venerology, Medical University of Warsaw, Warsaw, Poland
| | - P Jagielski
- Human Nutrition Department, Faculty of Health Science, Jagiellonian University Medical College, Krakow, Poland
| | - C Kowalewski
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Warsaw, Poland
| | - K Wozniak
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Warsaw, Poland
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16
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Navara R, Leef G, Shenasa F, Kowalewski C, Rogers AJ, Meckler G, Zaman JAB, Baykaner T, Park S, Turakhia MP, Zei P, Viswanathan M, Wang PJ, Narayan SM. Independent mapping methods reveal rotational activation near pulmonary veins where atrial fibrillation terminates before pulmonary vein isolation. J Cardiovasc Electrophysiol 2018; 29:687-695. [PMID: 29377478 DOI: 10.1111/jce.13446] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/16/2018] [Accepted: 01/18/2018] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To investigate mechanisms by which atrial fibrillation (AF) may terminate during ablation near the pulmonary veins before the veins are isolated (PVI). INTRODUCTION It remains unstudied how AF may terminate during ablation before PVs are isolated, or how patients with PV reconnection can be arrhythmia-free. We studied patients in whom PV antral ablation terminated AF before PVI, using two independent mapping methods. METHODS We studied patients with AF referred for ablation, in whom biatrial contact basket electrograms were studied by both an activation/phase mapping method and by a second validated mapping method reported not to create false rotational activity. RESULTS In 22 patients (age 60.1 ± 10.4, 36% persistent AF), ablation at sites near the PVs terminated AF (77% to sinus rhythm) prior to PVI. AF propagation revealed rotational (n = 20) and focal (n = 2) patterns at sites of termination by mapping method 1 and method 2. Both methods showed organized sites that were spatially concordant (P < 0.001) with similar stability (P < 0.001). Vagal slowing was not observed at sites of AF termination. DISCUSSION PV antral regions where ablation terminated AF before PVI exhibited rotational and focal activation by two independent mapping methods. These data provide an alternative mechanism for the success of PVI, and may explain AF termination before PVI or lack of arrhythmias despite PV reconnection. Mapping such sites may enable targeted PV lesion sets and improved freedom from AF.
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Affiliation(s)
- Rachita Navara
- Division of Cardiology, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - George Leef
- Division of Cardiology, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Fatemah Shenasa
- Division of Cardiology, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Christopher Kowalewski
- Division of Cardiology, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA.,Friedrich-Alexander Universitaet Erlangen-Nürnberg, Erlangen, Germany
| | - Albert J Rogers
- Division of Cardiology, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Gabriela Meckler
- Division of Cardiology, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Junaid A B Zaman
- Division of Cardiology, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA.,Imperial Centre for Cardiac Engineering, Imperial College London, London, UK
| | - Tina Baykaner
- Division of Cardiology, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Shirley Park
- Division of Cardiology, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA.,Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Mintu P Turakhia
- Division of Cardiology, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA.,Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Paul Zei
- Division of Cardiology, Brigham and Women's Hospital, Boston, MA, USA
| | - Mohan Viswanathan
- Division of Cardiology, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Paul J Wang
- Division of Cardiology, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Sanjiv M Narayan
- Division of Cardiology, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
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Wertheim-Tysarowska K, Sniegorska D, Grabarczyk A, Ruszkowska L, Kutkowska-Kazmierczak A, Sawicka J, Radomska S, Wozniak K, Kowalewski C, Bal J. 219 Molecular diagnostics of ichthyoses using genodermatoses-dedicated next generation sequencing panel in polish patients. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Navara R, Leef G, Shenasa F, Meckler G, Kowalewski C, Baykaner T, Alhusseini M, Hossainy S, Joshi V, Rogers A, Zaman J, Park S, Zei P, Wang P, Narayan S. P3014Drivers of persistent atrial fibrillation: do focal or rotational regions differ in their stability over time? Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Kowalewski C, Meckler G, Shenasa F, Baykaner T, Zaman J, Alhusseini M, Hossainy S, Navarra R, Leef G, Viswanathan M, Park S, Krummen D, Brachmann J, Wang P, Narayan S. 980How stable are localized sources in atrial fibrillation? Shedding light on underlying Mechanisms of persistent atrial fibrillation. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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20
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Baykaner T, Alhusseini M, Meckler G, Rogers AJ, Shenasa F, Kowalewski C, Tamboli M, Krummen DE, Zei P, Vidmar D, Rappel WJ, Narayan SM. 1311Rotational drivers for persistent atrial fibrillation identified in the same location by independent mapping approaches. Europace 2017. [DOI: 10.1093/ehjci/eux156.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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21
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Meckler G, Tamboli M, Imielski B, Kowalewski C, Alhusseini M, Vidmar D, Shenasa F, Baykaner T, Zaman J, Krummen D, Wang P, Brachmann J, Miller J, Rappel WJ, Narayan S. P364Identifying regions where targeted ablation terminated persistent atrial fibrillation: interobserver variability in multiple mapping systems. Europace 2017. [DOI: 10.1093/ehjci/eux141.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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22
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Alhusseini M, Vidmar D, Meckler G, Kowalewski C, Shenasa F, Baykaner T, Zaman J, Krummen D, Zei P, Viswanathan M, Wang P, Brachmann J, Miller J, Rappel WJ, Narayan S. 115Two independent methods show rotational drivers at sites where ablation terminates persistent atrial fibrillation prior to pulmonary vein isolation. Europace 2017. [DOI: 10.1093/ehjci/eux135.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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23
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Meckler G, Shenasa F, Clopton P, Kowalewski C, Alhusseini M, Narayan S, Zei P. P362Minimizing fluoroscopy during focal impulse and rotor modulation (FIRM) guided ablation for atrial fibrillation. Europace 2017. [DOI: 10.1093/ehjci/eux141.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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24
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Kowalewski C, Zaman J, Baykaner T, Krummen D, Rappel WJ, Narayan S. 209-01: Why Are Human Atrial Fibrillation Maps So Different? Filtering Far Field Signals Using Repolarization Reveals Sources. Europace 2016. [DOI: 10.1093/europace/18.suppl_1.i140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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25
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Kowalewski C, Zaman J, Baykaner T, Lalani G, Schricker A, Krummen D, Narayan S. 136-01: Repolarization Changes From Remodelling Explain Why Persistent Atrial Fibrillation Responds Less Well To Pulmonary Vein Isolation. Europace 2016. [DOI: 10.1093/europace/18.suppl_1.i89a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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26
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Kowalewski C, Bremer J, Gostynski A, Wertheim‐Tysarowska K, Wozniak K, Bal J, Jonkman M, Pasmooij A. Amelioration of junctional epidermolysis bullosa due to exon skipping. Br J Dermatol 2016; 174:1375-1379. [DOI: 10.1111/bjd.14374] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2015] [Indexed: 11/29/2022]
Affiliation(s)
- C. Kowalewski
- Department of Dermatology and Immunodermatology Medical University of Warsaw Warsaw Poland
| | - J. Bremer
- Department of Dermatology Center for Blistering Diseases University of Groningen University Medical Center Groningen Groningen the Netherlands
| | - A. Gostynski
- Department of Dermatology Center for Blistering Diseases University of Groningen University Medical Center Groningen Groningen the Netherlands
| | | | - K. Wozniak
- Department of Dermatology and Immunodermatology Medical University of Warsaw Warsaw Poland
| | - J. Bal
- Department of Medical Genetics Institute of Mother and Child Warsaw Poland
| | - M.F. Jonkman
- Department of Dermatology Center for Blistering Diseases University of Groningen University Medical Center Groningen Groningen the Netherlands
| | - A.M.G. Pasmooij
- Department of Dermatology Center for Blistering Diseases University of Groningen University Medical Center Groningen Groningen the Netherlands
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27
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Kalinska-Bienias A, Kalowska M, Kwiek B, Jakubowska B, Ishii N, Hashimoto T, Kowalewski C, Wozniak K. Efficacy and safety of perilesional/intralesional triamcinolone injections in oral mucous membrane pemphigoid. Br J Dermatol 2015. [DOI: 10.1111/bjd.14043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- A. Kalinska-Bienias
- Department of Dermatology and Immunodermatology; Medical University of Warsaw; Str. Koszykowa 82a 02-008 Warsaw Poland
| | - M. Kalowska
- Department of Dermatology and Immunodermatology; Medical University of Warsaw; Str. Koszykowa 82a 02-008 Warsaw Poland
| | - B. Kwiek
- Department of Dermatology and Immunodermatology; Medical University of Warsaw; Str. Koszykowa 82a 02-008 Warsaw Poland
| | - B. Jakubowska
- Department of Dermatology and Immunodermatology; Medical University of Warsaw; Str. Koszykowa 82a 02-008 Warsaw Poland
| | - N. Ishii
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; Kurume Japan
| | - T. Hashimoto
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; Kurume Japan
| | - C. Kowalewski
- Department of Dermatology and Immunodermatology; Medical University of Warsaw; Str. Koszykowa 82a 02-008 Warsaw Poland
| | - K. Wozniak
- Department of Dermatology and Immunodermatology; Medical University of Warsaw; Str. Koszykowa 82a 02-008 Warsaw Poland
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28
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Wertheim-Tysarowska K, Ołdak M, Giza A, Kutkowska-Kaźmierczak A, Sota J, Przybylska D, Woźniak K, Śniegórska D, Niepokój K, Sobczyńska-Tomaszewska A, Rygiel AM, Płoski R, Bal J, Kowalewski C. Novel sporadic and recurrent mutations in KRT5 and KRT14 genes in Polish epidermolysis bullosa simplex patients: further insights into epidemiology and genotype-phenotype correlation. J Appl Genet 2015; 57:175-81. [PMID: 26432462 PMCID: PMC4830863 DOI: 10.1007/s13353-015-0310-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Revised: 07/26/2015] [Accepted: 08/12/2015] [Indexed: 12/25/2022]
Abstract
Epidermolysis bullosa simplex (EBS) is a hereditary genodermatosis characterised by trauma-induced intraepidermal blistering of the skin. EBS is mostly caused by mutations in the KRT5 and KRT14 genes. Disease severity partially depends on the affected keratin type and may be modulated by mutation type and location. The aim of our study was to identify the molecular defects in KRT5 and KRT14 in a cohort of 46 Polish and one Belarusian probands with clinical suspicion of EBS and to determine the genotype-phenotype correlation. The group of 47 patients with clinical recognition of EBS was enrolled in the study. We analysed all coding exons of KRT5 and KRT14 using Sanger sequencing. The pathogenic status of novel variants was evaluated using bioinformatical tools, control group analysis (DNA from 100 healthy population-matched subjects) and probands' parents testing. We identified mutations in 80 % of patients and found 29 different mutations, 11 of which were novel and six were found in more than one family. All novel mutations were ascertained as pathogenic. In the majority of cases, the most severe genotype was associated with mutations in highly conserved regions. In some cases, different inheritance mode and clinical significance, than previously reported by others, was observed. We report 11 novel variants and show novel genotype-phenotype correlations. Our data give further insight into the natural history of EBS molecular pathology, epidemiology and mutation origin.
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Affiliation(s)
- K Wertheim-Tysarowska
- Department of Medical Genetics, Institute of Mother and Child, Kasprzaka 17a, 01211, Warsaw, Poland.
| | - M Ołdak
- Department of Histology and Embryology, Center of Biostructure Research, Medical University of Warsaw, Chalubinskiego 5, 02004, Warsaw, Poland.,Department of Genetics, World Hearing Center, Institute of Physiology and Pathology of Hearing, Warsaw, Poland
| | - A Giza
- Department of Medical Genetics, Institute of Mother and Child, Kasprzaka 17a, 01211, Warsaw, Poland
| | - A Kutkowska-Kaźmierczak
- Department of Medical Genetics, Institute of Mother and Child, Kasprzaka 17a, 01211, Warsaw, Poland
| | - J Sota
- Department of Medical Genetics, Institute of Mother and Child, Kasprzaka 17a, 01211, Warsaw, Poland
| | - D Przybylska
- Department of Histology and Embryology, Center of Biostructure Research, Medical University of Warsaw, Chalubinskiego 5, 02004, Warsaw, Poland
| | - K Woźniak
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Chalubinskiego 5, 02004, Warsaw, Poland
| | - D Śniegórska
- Department of Medical Genetics, Institute of Mother and Child, Kasprzaka 17a, 01211, Warsaw, Poland
| | - K Niepokój
- Department of Medical Genetics, Institute of Mother and Child, Kasprzaka 17a, 01211, Warsaw, Poland
| | - A Sobczyńska-Tomaszewska
- Department of Medical Genetics, Institute of Mother and Child, Kasprzaka 17a, 01211, Warsaw, Poland
| | - A M Rygiel
- Department of Medical Genetics, Institute of Mother and Child, Kasprzaka 17a, 01211, Warsaw, Poland
| | - R Płoski
- Department of Genetics, Medical University of Warsaw, Pawińskiego 5a, 02004, Warsaw, Poland
| | - J Bal
- Department of Medical Genetics, Institute of Mother and Child, Kasprzaka 17a, 01211, Warsaw, Poland
| | - C Kowalewski
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Chalubinskiego 5, 02004, Warsaw, Poland
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29
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Feliciani C, Joly P, Jonkman M, Zambruno G, Zillikens D, Ioannides D, Kowalewski C, Jedlickova H, Kárpáti S, Marinovic B, Mimouni D, Uzun S, Yayli S, Hertl M, Borradori L. Management of bullous pemphigoid: the European Dermatology Forum consensus in collaboration with the European Academy of Dermatology and Venereology. Br J Dermatol 2015; 172:867-77. [DOI: 10.1111/bjd.13717] [Citation(s) in RCA: 206] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2014] [Indexed: 12/20/2022]
Affiliation(s)
- C. Feliciani
- Department of Dermatology; University of Parma; Parma Italy
| | - P. Joly
- Department of Dermatology; University of Rouen, INSERM U 905; Rouen France
| | - M.F. Jonkman
- Department of Dermatology; University Medical Centre Groningen; Groningen The Netherlands
| | - G. Zambruno
- Laboratory of Molecular and Cell Biology; Istituto Dermopatico dell'Immacolata, IRCCS; Rome Italy
| | - D. Zillikens
- Department of Dermatology; University of Lübeck; Lübeck Germany
| | - D. Ioannides
- Department of Dermatology; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - C. Kowalewski
- Department of Dermatology; Medical University of Warsaw; Warsaw Poland
| | - H. Jedlickova
- Department of Dermatology; Masaryk University; Brno Czech Republic
| | - S. Kárpáti
- Department of Dermatology; Semmelweis University; Budapest Hungary
| | - B. Marinovic
- Department of Dermatology and Venereology; University Hospital Center Zagreb; University of Zagreb School of Medicine; Zagreb Croatia
| | - D. Mimouni
- Department of Dermatology; Tel-Aviv University; Tel-Aviv Israel
| | - S. Uzun
- Department of Dermatology; Akdeniz University; Antalya Turkey
| | - S. Yayli
- Department of Dermatology; Karadeniz Technical University; Trabzon Turkey
| | - M. Hertl
- Department of Dermatology; Philipps-University Marburg; Marburg Germany
| | - L. Borradori
- Department of Dermatology; University Hospital of Bern - Inselspital, Freiburgstrasse 4; 3010 Bern Switzerland
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30
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Hertl M, Jedlickova H, Karpati S, Marinovic B, Uzun S, Yayli S, Mimouni D, Borradori L, Feliciani C, Ioannides D, Joly P, Kowalewski C, Zambruno G, Zillikens D, Jonkman MF. Pemphigus. S2 Guideline for diagnosis and treatment--guided by the European Dermatology Forum (EDF) in cooperation with the European Academy of Dermatology and Venereology (EADV). J Eur Acad Dermatol Venereol 2014; 29:405-14. [PMID: 25338479 DOI: 10.1111/jdv.12772] [Citation(s) in RCA: 168] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 09/10/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND Pemphigus encompasses a group of life-threatening autoimmune bullous diseases characterized by blisters and erosions of the mucous membranes and skin. Before the era of immunosuppressive treatment, the prognosis of pemphigus was almost fatal. Due to its rarity, only few prospective controlled therapeutic trials are available. OBJECTIVES For this reason, a group of European dermatologists with a long-standing interest and expertise in basic and clinical pemphigus research has sought to define diagnostic and therapeutic guidelines for the management of patients with pemphigus. RESULTS This group identified the statements of major agreement or disagreement regarding the diagnostic and therapeutic management of pemphigus. The revised final version of the pemphigus guideline was finally passed on to the European Dermatology Forum (EDF) for a final consensus with the European Academy of Dermatology and Venereology (EADV) and the European Union of Medical Specialists (UEMS).
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Affiliation(s)
- M Hertl
- Department of Dermatology, Philipps-University Marburg, Marburg, Germany
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Szczecinska W, Nesteruk D, Wertheim-Tysarowska K, Greenblatt DT, Baty D, Browne F, Liu L, Ozoemena L, Terron-Kwiatkowski A, McGrath JA, Mellerio JE, Morton J, Woźniak K, Kowalewski C, Has C, Moss C. Under-recognition of acral peeling skin syndrome: 59 new cases with 15 novel mutations. Br J Dermatol 2014; 171:1206-10. [PMID: 24628291 DOI: 10.1111/bjd.12964] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND Acral peeling skin syndrome (APSS) is a rare skin fragility disorder usually caused by mutations in the transglutaminase 5 gene (TGM5). METHODS We investigated the mutation spectrum of APSS in the U.K., Germany and Poland. RESULTS We identified 59 children with APSS from 52 families. The phenotype was readily recognizable, with some variation in severity both within and between families. Most cases had been misdiagnosed as the localized form of epidermolysis bullosa simplex (EBS-loc). Eighteen different TGM5 mutations were identified, 15 of which were novel. Eight mutations were unique to a single family, nine each occurred in two families, while the common p.Gly113Cys mutation linked to a second missense variant p.Thr109Met occurred in 47 of the 52 families and was homozygous in 28. Most patients were of nonconsanguineous white European origin. CONCLUSIONS We propose that APSS is under-reported and widely misdiagnosed as EBS-loc, with significant counselling implications as APSS is autosomal recessive while EBS-loc is dominant. We recommend screening for TGM5 mutations when EBS-loc is suspected but not confirmed by mutations in KRT5 or KRT14. Our report trebles the number of known TGM5 mutations. It provides further evidence that p.Gly113Cys is a founder mutation in the European population. This is consistent with the striking ethnic distribution of APSS in U.K., where the majority of patients are of nonconsanguineous white European origin, in contrast to the pattern of other recessive skin disorders.
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Affiliation(s)
- W Szczecinska
- Department of Dermatology, Birmingham Children's Hospital, Steelhouse Lane, Birmingham, B4 6NH, U.K
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Wozniak K, Kalinska-Bienias A, Hashimoto T, Kowalewski C. Ultraviolet-induced linear IgA bullous dermatosis: a case report and literature survey. Br J Dermatol 2014; 171:1578-81. [PMID: 24888577 DOI: 10.1111/bjd.13154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K Wozniak
- Department of Dermatology and Immunodermatology, Medical University of Warsaw, Koszykowa 82a, 02-008, Warsaw, Warszawa, Poland.
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Wertheim‐Tysarowska K, Sota J, Kutkowska‐Kaźmierczak A, Woźniak K, Bal J, Kowalewski C. Coexistence of
KRT
14
and
KRT
5
mutations in a
P
olish patient with epidermolysis bullosa simplex. Br J Dermatol 2014; 170:468-9. [DOI: 10.1111/bjd.12624] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. Wertheim‐Tysarowska
- Department of Medical Genetics Institute of Mother and Child Kasprzaka 17a Warsaw 01‐211 Poland
| | - J. Sota
- Department of Medical Genetics Institute of Mother and Child Kasprzaka 17a Warsaw 01‐211 Poland
| | | | - K. Woźniak
- Department of Dermatology and Immunodermatology Warsaw Medical University Warsaw Poland
| | - J. Bal
- Department of Medical Genetics Institute of Mother and Child Kasprzaka 17a Warsaw 01‐211 Poland
| | - C. Kowalewski
- Department of Dermatology and Immunodermatology Warsaw Medical University Warsaw Poland
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Wozniak K, Hashimoto T, Ishii N, Koga H, Huczek M, Kowalewski C. Fluorescence overlay antigen mapping using laser scanning confocal microscopy differentiates linear IgA bullous dermatosis from epidermolysis bullosa acquisita mediated by IgA. Br J Dermatol 2013; 168:634-8. [DOI: 10.1111/bjd.12017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Granicka LH, Antosiak-Iwańska M, Godlewska E, Strawski M, Szklarczyk M, Maranowski B, Kowalewski C, Wiśniewsk J. Conformal nano-thin modified polyelectrolyte coatings for encapsulation of cells. Artif Cells Blood Substit Immobil Biotechnol 2011; 39:274-80. [PMID: 21506663 DOI: 10.3109/10731199.2011.559645] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Encapsulation of cells in polymeric shells allows for separation of biological material from produced factors, which may find biotechnological and biomedical applications. Human T-lymphocyte cell line Jurkat as well as rat pancreatic islets were encapsulated using LbL technique within shells of polyelectrolyte modified by incorporation of biotin complexed with avidin to improve cell coating and to create the potential ability to elicit specific biochemical responses. The coating with nano-thin modified shells allowed for maintenance of the evaluated cells' integrity and viability during the 8-day culture. The different PE impact may be observed on different biological materials. The islets exhibited lower mitochondrial activity than the Jurkat cells. Nevertheless, coating of cells with polyelectrolyte modified membrane allowed for functioning of both model cell types: 10 μm leukemia cells or 150 μm islets during the culture. Applied membranes maintained the molecular structure during the culture period. The conclusion is that applied modified membrane conformation may be recommended for coating shells for biomedical purposes.
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Affiliation(s)
- L H Granicka
- Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Science, Warsaw, Poland.
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36
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Wozniak K, Kowalewski C, Rosinska-Borkowska D, Ciupinska M. Two patients with localized epidermolysis bullosa acquisita: diagnostic value of laser scanning confocal microscopy. Br J Dermatol 2007; 156:1066-8. [PMID: 17355235 DOI: 10.1111/j.1365-2133.2007.07793.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Wozniak K, Waszczykowska E, Hashimoto T, Ishii N, Torzecka JD, Narbutt J, Rogozinski T, Schwartz RA, Kowalewski C. Anti-epiligrin cicatricial pemphigoid initially limited to the upper respiratory tract. Br J Dermatol 2006; 154:779-81. [PMID: 16536833 DOI: 10.1111/j.1365-2133.2006.07131.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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39
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Woźniak K, Kowalewski C. Alterations of basement membrane zone in autoimmune subepidermal bullous diseases. J Dermatol Sci 2005; 40:169-75. [PMID: 15990279 DOI: 10.1016/j.jdermsci.2005.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2005] [Revised: 05/17/2005] [Accepted: 05/19/2005] [Indexed: 11/21/2022]
Abstract
BACKGROUND Pemphigoid (BP), mucous membrane pemphigoid (MMP) and epidermolysis bullosa acquisita (EBA) are characterized by the presence of in vivo bound and circulating anti-basement membrane zone (BMZ) antibodies directed against different antigens localized in the upper part of the lamina lucida, lamina lucida-lamina densa border and in sublamina densa region, respectively. The alterations of BMZ lead to blister formation. OBJECTIVES The aim of the present study was to compare the alterations of various regions of the BMZ in BP, MMP and EBA using laser scanning confocal microscopy (LSCM). METHODS Biopsy specimens taken from perilesional patients' skin were cut into 40mum thick slides, followed by double immunofluorescence labeling with antibodies against different BMZ structures and anti-human IgG antibody. Three-dimensional reconstruction (3DR) of various regions of BMZ and of in vivo bound IgG was performed by computer program integrated with LSCM. RESULTS In BP and MMP, LSCM studies revealed numerous invaginations of BMZ, most pronounced at the level of lamina lucida. Integrity of BMZ was preserved at the level of lamina lucida, lamina densa and sublamina densa. In EBA, continuity of lamina lucida was preserved and numerous invaginations were present. More pronounced invaginations of BMZ were observed at the level of lamina densa, whereas at the level of the sublamina densa region the staining along BMZ was discontinuous. Moreover, large clumps composed of collagen VII vertically oriented to the dermal-epidermal junction extending into the mid dermis were observed. CONCLUSIONS The study showed that alterations of BMZ in BP and MMP occur mainly in the lamina lucida, and in EBA in the sublamina densa region. These alterations in various regions of BMZ in BP, MMP and EBA could be responsible for the differences in the level of blister formation and in the clinical course of the diseases.
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Affiliation(s)
- K Woźniak
- Department of Dermatology, Medical University of Warsaw, Warsaw, Poland
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40
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Kowalewski C, Mackiewicz W, Schmitt D, Jablonska S, Haftek M. Cell-cell junctions in acantholytic diseases. Junction proteins in nonimmune and autoimmune acantholysis. Arch Dermatol Res 2001; 293:1-11. [PMID: 11289575 DOI: 10.1007/s004030000190] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- C Kowalewski
- Department of Dermatology, Warsaw University of Medicine, Poland
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41
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Haftek M, Kowalewski C, Mesnil M, Blaszczyk M, Schmitt D. Internalization of gap junctions in benign familial pemphigus (Hailey-Hailey disease) and keratosis follicularis (Darier's disease). Br J Dermatol 1999; 141:224-30. [PMID: 10468792 DOI: 10.1046/j.1365-2133.1999.02969.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Hereditary skin disorders involving acantholysis, such as Hailey-Hailey disease and Darier's disease, have been genetically linked to distinct chromosomal parts which do not code for known structural proteins. Such evidence suggests that the genomic abnormalities underlying these dermatoses may concern functional/regulatory mechanisms of keratinocyte cohesion. Epidermal communication junctions (gap junctions) are responsible for direct coupling of cells and, thus, co-ordinate the behaviour of keratinocytes within the tissue. Consequently, they remain one of the potential, and poorly studied, elements in the pathogenesis of hereditary acantholytic diseases. We have investigated the distribution and fate of gap junctions during non-immune acantholysis, using fine immunolocalization methods at the light and electron microscopic levels. Our results demonstrate normal expression of epidermal gap junction proteins, connexins 26 and 43, in non-lesional skin of Hailey-Hailey and Darier's diseases. The gap junctions were not primarily dismantled during acantholysis, typical of both of the studied dermatoses, but underwent internalization and subsequent cytoplasmic dispersion in the portions of cells which were no longer attached to the rest of the tissue. In Darier's disease, perifollicular acantholysis did not specifically concern epithelium of appendages coexpressing connexin 26 in addition to connexin 43, further indicating that the observed changes in gap junction localization were secondary to the loss of cell-cell contact. We demonstrated that the sequence of changes was identical in both diseases and that the previously described putative differences were apparently related to the degree of acantholysis present in the studied biopsies. The fate of the junctional structures and proteins, documented in the present study, is most probably a form of recycling process also used by normal keratinocytes during organogenesis and tissue differentiation.
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Affiliation(s)
- M Haftek
- INSERM U.346/CNRS 'Human Skin and Immunity', Hôpital E.Herriot, 69437 Lyon cedex 03, France.
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42
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Faff L, Kowalewski C, Pokorski M. Protein kinase C--a potential modifier of carotid body function. Monaldi Arch Chest Dis 1999; 54:172-7. [PMID: 10394835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023] Open
Abstract
This article deals with the potential role of protein kinase C (PKC) in signal transduction in the carotid body. The carotid body is a chemosensory organ which, by sensing reductions in arterial blood oxygen tension, is primarily responsible for the hyperventilation of hypoxia. The mechanisms of transduction of the hypoxic stimulus into a neural signal regulating respiration are not clear. Hypoxia increases the phosphoinositide-specific phospholipase C (PLC) activity in the carotid body. The PLC-derived signalling molecules are known to activate PKC. The enzyme might, thus, have the potential to interact with the process of chemoreception. This article demonstrates that PKC is present in the chemoreceptor cells of the cat carotid body and discusses the biology of the enzyme relevant to chemosensory function. This gives rise to the hypothesis that PKC-mediated mechanisms alter chemoreceptor cell function to a sufficient extent to metamorphose the hypoxic signal into an increased discharge frequency in the apposed sinus nerve endings.
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Affiliation(s)
- L Faff
- Dept of Neurophysiology, Medical Research Centre, Warsaw, Poland
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43
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Kowalewski C, Blasz̧czyk M, Schmitt D, Jablonska S, Haftek M. Expression of cell - cell contact proteins in non-immune mediated acantholytic dermatoses. J Dermatol Sci 1998. [DOI: 10.1016/s0923-1811(98)83239-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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44
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Kowalewski C, Haftek M, Jablonska S, Schmitt D. Ultrastructural localization of binding sites of sera from patients with linear IgA bullous dermatosis. Arch Dermatol Res 1995; 287:636-40. [PMID: 8534126 DOI: 10.1007/bf00371735] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The localization of the antigen recognized by IgA basement membrane zone (BMZ) antibodies from patients with linear IgA bullous dermatosis (LABD) has not been established. The aim of our study was to find out the binding sites for IgA-BMZ antibodies in LABD in adults and children and, for comparison, the binding sites for IgA antibodies in IgA cicatricial pemphigoid (IgA-CP). Our series comprised 21 sera from adult LABD, 4 sera from childhood LABD, and 2 sera from IgA-CP. The studies were performed using the sodium chloride split-skin method and indirect immunoelectron microscopy (IEM) with the use of the pre-embedding immunoperoxidase technique on two substrates: monkey oesophagus and normal human skin. Of the 27 sera, 24 reacted with the epidermis (19 from adult, 4 from childhood LABD and 1 from IgA-CP) and at the electron microscopic level labelled the upper part of the lamina lucida (LL) and/or hemidesmosomes, and 2 reacted with the dermis (1 from typical adult LABD and 1 from IgA-CP) and labelled the sublamina densa (SLD) region. Two sera were negative in IEM. In conclusion, the study indicated that the localization of the antigens is similar in adult and childhood LABD, and in IgA-CP.
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Affiliation(s)
- C Kowalewski
- Department of Dermatology, Warsaw School of Medicine, Poland
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45
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Haftek M, Zone JJ, Taylor TB, Kowalewski C, Chorzelski TP, Schmitt D. Immunogold localization of the 97-kD antigen of linear IgA bullous dermatosis (LABD) detected with patients' sera. J Invest Dermatol 1994; 103:656-9. [PMID: 7963651 DOI: 10.1111/1523-1747.ep12398417] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The classification of linear IgA bullous dermatosis in the group of subepidermal blistering diseases is still a matter of controversy. This situation is due partly to the considerable clinical heterogeneity of the disease but also results from the difficulties in characterization and localization of the specific basement membrane zone antigen(s) recognized by immunoglobulin (Ig)A antibodies. In the present study, we have combined the Western blot detection of circulating autoantibodies with an ultrastructural immunogold labeling of human skin antigens using the same patients' sera. Our results, obtained with a short series of sera showing exclusive IgA class reactivity with the epidermal portion of salt-split skin, indicate that the antibodies recognizing the 97-kD antigen on immunoblot bind to the hemidesmosomal plaques of basal keratinocytes and the adjacent lamina lucida. These homogeneous laboratory results remain in striking contrast to the heterogeneity of clinical pictures in the patients studied, suggesting a participation of complementary, possibly not humoral, phenomena in the pathogenesis of linear IgA bullous dermatosis.
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Affiliation(s)
- M Haftek
- INSERM U. 346/CNRS, Department of Dermatology, E. Herriot Hospital, Lyon, France
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46
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Chorzelski TP, Beutner EH, Kowalewski C, Olszewska M, Maciejowska E, Seferowicz E, Kumar V, Jablonska S. IgA pemphigus foliaceus with a clinical presentation of pemphigus herpetiformis. J Am Acad Dermatol 1991; 24:839-44. [PMID: 1646833 DOI: 10.1016/0190-9622(91)70128-o] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A patient with clinical features of herpetiform pemphigus of the foliaceus type had histologic findings consistent with pemphigus. Intercellular IgA deposits in a pattern like that of IgG in pemphigus were present. Circulating pemphigus-type IgA-class antibodies reacted first only with guinea pig and later in the disease also with monkey esophagus sections. IgG-class pemphigus antibodies were blocked by the IgA-class antibodies of this patient. In addition, the IgA-class pemphigus antibodies in this patient were blocked by the IgG-class pemphigus antibodies in tests on guinea pig and monkey esophagus. This indicates that the IgA-class antibodies in this patient were directed either to the same antigen as the IgG-class pemphigus foliaceus antibodies or to one that is close enough to it to give steric hindrance. The skin lesions responded poorly to systemic corticosteroid therapy. Dapsone therapy initially produced dramatic improvement, but the condition flared to the point that plasmapheresis, in addition to high doses of corticosteroids and cyclophosphamide, had to be used to control it.
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Affiliation(s)
- T P Chorzelski
- Department of Dermatology, Warsaw Medical School, Poland
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47
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Janniger CK, Kowalewski C, Mahmood T, Lambert WC, Schwartz RA. Detection of anti-basement membrane zone antibodies in bullous systemic lupus erythematosus. J Am Acad Dermatol 1991; 24:643-7. [PMID: 2033145 DOI: 10.1016/0190-9622(91)70100-g] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We describe a 42-year-old black woman with long-standing systemic lupus erythematosus in whom vesiculobullous lesions developed. Routine histologic and immunologic studies fulfilled the criteria for the diagnosis of bullous systemic lupus erythematosus. Indirect immunofluorescence showed antinuclear antibodies without basement membrane zone fluorescence. We destroyed the nuclear antigens of the indirect immunofluorescence substrate with 2 mol/L sodium chloride, which unmasked basement membrane zone linear IgG staining. We also confirmed anti-basement membrane zone antibodies by employing a new technique of direct immunofluorescence on sodium chloride-split skin. Our finding prove that a thorough search for anti-basement membrane zone antibodies can be revealing. Our results support the idea that a subset of bullous systemic lupus erythematosus has the staining characteristics of epidermolysis acquisita, with the dermal side of the split skin showing linear immunoglobulin deposition.
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Affiliation(s)
- C K Janniger
- Department of Dermatology, New Jersey Medical School, Newark 07103-2714
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48
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Gammon WR, Kowalewski C, Chorzelski TP, Kumar V, Briggaman RA, Beutner EH. Direct immunofluorescence studies of sodium chloride-separated skin in the differential diagnosis of bullous pemphigoid and epidermolysis bullosa acquisita. J Am Acad Dermatol 1990; 22:664-70. [PMID: 2180996 DOI: 10.1016/0190-9622(90)70094-x] [Citation(s) in RCA: 123] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Bullous pemphigoid and epidermolysis bullosa acquisita may have indistinguishable clinical, histologic, and routine immunohistologic features. In those cases these two diseases can be reliably distinguished in routine diagnostic studies only in seropositive cases by tests on lamina lucida-split skin and in research studies by direct immunoelectron microscopy or, in patients with circulating autoantibodies, by immunoblotting studies. The use of these methods is limited by the expense and unavailability of the methods, the requirement for circulating autoantibodies, or both. We describe a method to distinguish between the two diseases on the basis of findings of direct immunofluorescence of a biopsy specimen after separation through the lamina lucida with 1.0 mol/L sodium chloride. The IgG appeared in the dermal side of the split specimens in epidermolysis bullosa acquisita and predominantly or exclusively in the epidermal side in pemphigoid. The method was found to be relatively simple, inexpensive, applicable to specimens preserved in transport media, and 100% reliable in our group of 22 patients.
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Affiliation(s)
- W R Gammon
- Department of Dermatology, University of North Carolina, Chapel Hill 27514
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49
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Verschoore M, Kowalewski C, Chorzelska MJ, Bernard BA, Darmon YM. Intraepidermal leakage of plasma proteins after tape stripping of normal skin and uninvolved psoriatic skin. Br J Dermatol 1990; 122:391-7. [PMID: 2182098 DOI: 10.1111/j.1365-2133.1990.tb08288.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Following tape stripping of normal skin and uninvolved psoriatic skin, there was an early leakage of plasma proteins such as fibrinogen, fibronectin and immunoglobulins. This was accompanied by migration of mononuclear and polymorphonuclear cells into the epidermis. Both events appeared earlier, were more pronounced and lasted longer in psoriatic subjects than in controls.
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Affiliation(s)
- M Verschoore
- Centre International de Recherches Dermatologiques, Valbonne, France
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50
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Janniger CK, Wiltz H, Schwartz RA, Kowalewski C, Lambert WC. Adult linear IgA bullous dermatosis: a polymorphic disorder. Cutis 1990; 45:37-42. [PMID: 2404698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We report on two patients with unusual forms of adult linear IgA bullous dermatosis. One was a middle-aged woman who had targetoid lesions and bullae on her trunk and extremities. This patient first presented with lesions that clinically resembled erythema multiforme, but these evolved into a widespread eruption with bulging, elongated bullae. Examination of a biopsy specimen showed changes compatible with dermatitis herpetiformis and bullous pemphigoid. Findings on immunofluorescence studies showed deposition of linear IgA at the basement membrane zone. The second patient was an elderly woman with intensely pruritic vesicles whom we classified as having vesicular pemphigoid, until the linear IgA band on direct immunofluorescent test results became the predominant immunofluorescent finding. These cases are reported because of their unusual clinical presentations. The mechanism for the targetoid lesions in the first patient is discussed.
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Affiliation(s)
- C K Janniger
- Department of Dermatology, New Jersey Medical School, Newark 07103-2757
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