56 results on '"Michele Brunelli"'
Search Results
2. Long-Standing Persistent Atrial Fibrillation Ablation: How Do You Perform? Left and Right Atrial Linear Ablation in Addition to Pulmonary Vein Isolation
- Author
-
Michele Brunelli and Mark Adrian Sammut
- Subjects
Radiofrequency catheter ablation ,Atrial fibrillation. ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Catheter ablation of long-standing persistent atrial fibrillation is not yet clearly defined with respect to endpoints, and different ablative strategies are offered to patients. Presented here is an approach aiming at biatrial debulking in the form of extensive linear ablation, specifically targeting areas of low-voltage complex fractionated electrograms, in addition to pulmonary vein isolation. Its main advantage is that it is not dependent on operator/system variability, since the strategy of isolating the pulmonary veins, superior vena cava and left atrial posterior wall together with achievement of bidirectional block during linear ablation provides objective endpoints that can consistently be reproduced.
- Published
- 2020
3. Effect of intraoperative local application of 3% hydrogen peroxide on pocket infections following cardiac implantable electronic device implantation: An observational study
- Author
-
Daniel Apel, Michele Brunelli, Mohammed El-Gahry, J. Christoph Geller, Bernward Lauer, and Marc-Alexander Ohlow
- Subjects
Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Aims: The aim of this study was to analyze whether local application of 3% hydrogen peroxide (H2O2) additionally to standard antibiotic prophylaxis following implantation of cardiac implantable electronic devices (CIED) reduces the incidence of pocket infections (PI). Methods: In this observational case-control study every patient from the group additionally treated with H2O2 was matched with two patients out of the control group for age, male-gender, body-mass-index and operation time. The incidence of PI within 365 days after device implantation was compared. Results: During the 5-year study period, 429 consecutive patients were additionally treated with H2O2 and matched with 858 patients undergoing standard treatment (mean age 69 ± 12 years, 876 males (67.4%), body-mass-index 28 ± 4.0 kg/m2 and operation time 45 ± 23 min). Except for a more frequent use of dual-platelet-inhibition in the H2O2-group, clinical characteristics were otherwise similar. A total of 23 (1.78%) PIs occurred, most of them (14/23; 61%) during the first 45 days after implantation procedure. The use of H2O2 was associated with a significant reduction (3/429 = 0.69% versus 20/858 = 2.33%; p = 0.04), although patients of the H2O2 treated group received more complex procedures increasing the risk of PI. Conclusion: Intraoperative local application of 3% H2O2 seems to be associated with a significant reduced incidence of PI following implantation of CIED. Because of its non-randomized character this trial should be considered as a hypothesis generating study. Keywords: Pocket infection, Hydrogen peroxide, Prevention, Pacemaker, Defibrillator, Implantation
- Published
- 2018
- Full Text
- View/download PDF
4. The Use of a Quadripolar Left Ventricular Lead Increases Successful Implantation Rates in Patients with Phrenic Nerve Stimulation and/or High Pacing Thresholds Undergoing Cardiac Resynchronisation Therapy with Conventional Bipolar Leads
- Author
-
Marc-Alexander Ohlow, MD, Bernward Lauer, PhD, Michele Brunelli, PhD, Yunis Daralammouri, MD, and J. Christoph Geller, PhD
- Subjects
Threshold ,phrenic nerve stimulation ,quadripolar ,lead ,cardiac resynchronisation therapy ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Background: Phrenic nerve stimulation (PNS) and high pacing thresholds (HPT) hinder biventricular stimulation in patients (pts) undergoing cardiac resynchronization therapy (CRT). A new quadripolar left ventricular (LV) lead (Quartet 1458Q, St. Jude Medical) with increased number of pacing configuration, might overcome this problem. Methods: All consecutive pts in whom a standard bipolar lead intraoperatively resulted in PNS and/or HPT (≥4.00 V/1 mV), received, during the same implant, a quadripolar LV lead. Aim of the study was to evaluate acute and short term outcome. Results: 26 pts [24 (92%) male, mean age 74±6 years)] with PNS (22 pts; 85%) and HPT (4 pts; 15%) were included. Permanent right ventricular pacing was the reason for broad QRS complex in 4 (15%) pts, whereas all other pts had a left bundle branch block. Severely symptomatic (NYHA Class ≥3) heart failure with reduced ejection fraction (EF 31±9%) was mostly caused by ischemic heart disease (14 pts; 54%). Idiopathic dilated cardiomyopathy and valvular heart disease were diagnosed in 6 (23%) pts each. In most (24/26, 92%) pts the use of the Quartet lead led to successful biventricular pacing due to a significant reduction in intraoperative pacing threshold (5.2 V/1.0 ms vs. 1.4 V/0.8 ms; p=0.03), which was maintained (1.2 V/0.7 ms) at follow-up. PNS never represented reason for failed LV pacing, neither acutely nor during follow-up. Conclusions: Excessively HPT and/or PNS are frequently encountered when conventional bipolar leads are used for CRT. A new quadripolar LV lead increases the rate of successful biventricular stimulation. Lower pacing threshold and freedom from PNS are maintained at follow-up.
- Published
- 2013
- Full Text
- View/download PDF
5. 'Una golondrina no hace verano'. Reflexiones sobre la ola de revueltas en el mundo árabe
- Author
-
Michele Brunelli
- Subjects
Law in general. Comparative and uniform law. Jurisprudence ,K1-7720 - Abstract
El año 2011 trajo consigo el comienzo de una serie de profundos cambios / trastornos de carácter político e institucional, que han afectado al mundo árabe-musulmán en su conjunto. Los cambios han adoptado la forma de revoluciones, motines, conflictos tribales o entre clanes, guerra civil o golpes de Estado. El pueblo, impulsado por un profundo deseo de reforma, ha tomado las calles para cambiar radicalmente el status quo de los regímenes que durante años gobernaron gracias al apoyo de las potencias occidentales, prestando poca atención a las necesidades de su propia gente. A través de las herramientas simples del «saber», «comprender» y «prever», se propone un análisis de lo que ha sucedido en el seno del complejo mundo Árabe-Islámico, tratando de presentar los hechos, pero también y sobretodo aclarando los términos utilizados por los medios occidentales, a menudo de forma impropia, en el análisis de la llamada «Primavera árabe».
- Published
- 2012
- Full Text
- View/download PDF
6. Iran. Il paese delle rivoluzioni
- Author
-
Michele Brunelli
- Subjects
Revolution ,Rivoluzione Islamica ,Islamic Revolution ,Iran ,rivoluzione ,Persia ,Settore SPS/14 - Storia e Istituzioni Dell'Asia ,General Medicine ,Settore SPS/06 - Storia delle Relazioni Internazionali - Published
- 2021
- Full Text
- View/download PDF
7. Ricordando Anna Vanzan. Breve profilo biografico-critico di una studiosa dell'Iran
- Author
-
Riccardo Redaelli and Michele Brunelli
- Subjects
Iran ,Persia ,letteratura iraniana contemporanea ,Vanzan ,Settore SPS/14 - Storia e Istituzioni Dell'Asia ,General Medicine - Published
- 2021
- Full Text
- View/download PDF
8. Long-Standing Persistent Atrial Fibrillation Ablation: How Do You Perform? Left and Right Atrial Linear Ablation in Addition to Pulmonary Vein Isolation
- Author
-
Mark Adrian Sammut and Michele Brunelli
- Subjects
medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Atrial fibrillation ,Catheter ablation ,medicine.disease ,Ablation ,Debulking ,Pulmonary vein ,Superior vena cava ,Internal medicine ,Persistent atrial fibrillation ,cardiovascular system ,medicine ,Cardiology ,business ,Linear ablation - Abstract
Catheter ablation of long-standing persistent atrial fibrillation is not yet clearly defined with respect to endpoints, and different ablative strategies are offered to patients. Presented here is an approach aiming at biatrial debulking in the form of extensive linear ablation, specifically targeting areas of low-voltage complex fractionated electrograms, in addition to pulmonary vein isolation. Its main advantage is that it is not dependent on operator/system variability, since the strategy of isolating the pulmonary veins, superior vena cava and left atrial posterior wall together with achievement of bidirectional block during linear ablation provides objective endpoints that can consistently be reproduced.
- Published
- 2020
- Full Text
- View/download PDF
9. Very early discharge after cardiac implantable electronic device implantations: is this the future?
- Author
-
J. Christoph Geller, Marc-Alexander Ohlow, Hassan Awada, Michele Brunelli, and Moritz Laubscher
- Subjects
Male ,Pacemaker, Artificial ,medicine.medical_specialty ,medicine.medical_treatment ,Cardiac resynchronization therapy ,030204 cardiovascular system & hematology ,Ventricular Function, Left ,Cardiac contractility modulation ,Cardiac Resynchronization Therapy ,Coronary artery disease ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Physiology (medical) ,Internal medicine ,medicine ,Humans ,030212 general & internal medicine ,Early discharge ,Retrospective Studies ,Univariate analysis ,Ejection fraction ,business.industry ,Infant, Newborn ,Stroke Volume ,medicine.disease ,Patient Discharge ,Defibrillators, Implantable ,Pneumothorax ,Ambulatory ,Cardiology ,Female ,Electronics ,Cardiology and Cardiovascular Medicine ,business - Abstract
To limit the ever-increasing healthcare costs, strategies to minimize hospitalization length are warranted. In this perspective, early discharge (the same day or after 24 h) post-cardiac implantable electronic device (CIED) implantation might represent a useful strategy; nevertheless, it is imperative first to understand the timing of (potentially lethal) complications and evaluate whether this is not only an effective but also a safe clinical decision.A retrospective cohort analysis of all patients undergoing new CIED implantation from Jan 2008 to Dec 2014 was conducted. Patient demographics, comorbidities, and timing of complications post CIED implantation were evaluated, and the timing of complications was divided into intra-operative, 0-6 h (h), 6 to 24 h, and 24 h post-implant. One-year post-implant follow-up (FU) was performed in our CIED clinic.A total of 1868 patients (68% men, average age 70 years, 85% hypertension, 39% diabetes, 57% coronary artery disease, and average left ventricular ejection fraction (LVEF) 41%) received 703 (38%) pacemaker, 448 (24%) implantable cardioverter-defibrillator (ICD), 639 (34%) cardiac resynchronization therapy (CRT) devices, and 78 (4.2%) cardiac contractility modulation. A total of 199 (11%) patients experienced 214 complications. Most (75%) occurred 24 h post-implantation (with a median of 7 days). At univariate analysis, complications occurred more often in patients with a lower LVEF, on anticoagulation/antiplatelet therapy, and undergoing ICD/CRT-D implantation (p 0.05 for all).Most complications occur 24 h after first time CIED implantation. Therefore, it might not be optimal to discharge patients in ≤ 24 h, unless extensive ambulatory monitoring for complications is available.
- Published
- 2020
- Full Text
- View/download PDF
10. VenPro: A Morphological Analyzer for Venetan.
- Author
-
Sara Tonelli, Emanuele Pianta, Rodolfo Delmonte, and Michele Brunelli
- Published
- 2010
11. Alle radici della mutua incomprensione: antieuropeismo ed antiamericanismo in Iran (1945-2005)
- Author
-
Michele Brunelli
- Subjects
media_common.quotation_subject ,General Medicine ,Settore SPS/14 - Storia e Istituzioni Dell'Asia ,Autocracy ,Iran ,Settore SPS/06 - Storia delle Relazioni Internazionali ,propaganda ,murales ,Politics ,Feeling ,Political economy ,Political science ,Political history ,antiamericanismo ,rivoluzione ,Narrative ,Ideology ,Icon ,computer ,Decolonization ,media_common ,computer.programming_language - Abstract
L'antieuropeismo e l'antiamericanismo sono sentimenti che varcano i confini strettamente geografici dell'Occidente e, giocoforza, trovano rilievo ed una loro precipua collocazione in una dimensione culturale che risente dell'epoca della decolonizzazione, della lotta ideologica, inserita in un contesto si bipolare, ma anche di ambizioni di terza via. Cosi sara in Africa ed in Asia, nelle sue propaggini sud-orientali, indiane, ma anche in uno dei paesi piu dicotomici della parte occidentale di questo continente: l'Iran, nel quale un sentimento inizialmente filo-americano si contrapporra a pulsioni antibritanniche, sino a mutare in un acceso antiamericanismo, che diverra icona e strumento antioccidentale. I livelli di tali sentimenti saranno molteplici, funzionali ora alla dimensione interna, ovvero al consolidamento di un fragile potere uscito dalla Rivoluzione del 1978-79 e messo immediatamente alla prova da un drammatico quanto durissimo conflitto con l'Iraq, ora a quella esterna, nel tentativo di identificare un nemico comune da combattere, per coagulare le varie componenti militanti che avevano condotto alla rovinosa caduta della monarchia Pahlavi. Attraverso l'attento uso della propaganda, i sermoni, gli slogan, poster e murales, il regime cerchera di mantenere vivo questo sentimento. Una costante che caratterizzera parte della narrativa iraniana dell'ultimo sessantennio.
- Published
- 2021
12. Pocket related complications following cardiac electronic device implantation in patients receiving anticoagulation and/or dual antiplatelet therapy: prospective evaluation of different preventive strategies
- Author
-
Michele Brunelli, J. Christoph Geller, Marc-Alexander Ohlow, and Hassan Awada
- Subjects
Male ,Pacemaker, Artificial ,medicine.medical_specialty ,Standard of care ,Vacuum ,Blood Loss, Surgical ,030204 cardiovascular system & hematology ,Hemostatics ,Prospective evaluation ,03 medical and health sciences ,0302 clinical medicine ,Hematoma ,Physiology (medical) ,Clinical endpoint ,medicine ,Humans ,In patient ,Prospective Studies ,030212 general & internal medicine ,Aged ,business.industry ,Hazard ratio ,Anticoagulants ,Compression device ,medicine.disease ,Bandages ,Confidence interval ,Defibrillators, Implantable ,Surgery ,Drainage ,Female ,Cardiology and Cardiovascular Medicine ,business ,Platelet Aggregation Inhibitors - Abstract
We sought to assess the safety and effectiveness of three different devices: (1) vacuum drainage system, (2) hemostatic gelatin sponge (Stypro®), and (3) compression device (Premofix®) compared to standard of care (control) in patients undergoing cardiac implantable electronic device (CIED) implantation receiving anticoagulation and/or dual antiplatelet therapy (DAPT).We enrolled all consecutive patients admitted for first permanent CIED implantation receiving anticoagulation and/or DAPT into a prospective registry. The primary endpoint (1°EP) was a composite of hematoma grade 1 and pocket infection.We included 406 patients (median age 73 years, 71% male) of whom 103 (25%) received a vacuum drainage system, 99 (24%) received Stypro®, 103 (25%) received Premofix®, and 101 (25%) were in the control group. One hundred eighty patients (44%) were treated with anticoagulation (median INR 2.0), 176 (43%) received DAPT, and 50 (12%) both. The occurrence of the 1°EP was reduced by Stypro® (hazard ratio (HR) 0.38 (95% confidence interval (CI) 0.16-0.94) and Premofix® (HR: 0.37 (95% CI 0.15-0.90)) compared to controls (p 0.05 for both). The incidence of hematoma grade 2 or 3 was exclusively lowered by Premofix® compared to control (6% versus 15%; p 0.05) and was not affected by the type of CIED, INR (≥ 2.5 versus 2.5), body mass index (≥ 30 versus 30), or CIED implantation under anticoagulation plus DAPT. The vacuum drainage system did not affect the 1°EP or the incidence of hematoma.In patients receiving anticoagulation and/or DAPT undergoing CIED implantation, the use of Premofix® and Stypro® significantly lowered the 1°EP occurrence compared to control. Premofix® additionally lowered the frequency of pocket hematomasgrade 1.
- Published
- 2018
- Full Text
- View/download PDF
13. Violent extremism in the Western Balkans : Islam, identity and measures countering radicalisation : Perspectives from Kosovo and Bosnia and Herzegovina studies
- Author
-
Michele Brunelli and Michele Brunelli
- Abstract
L'extrémisme religieux, politique et identitaire dans les Balkans est ici analysé par des chercheurs internationaux et par des fonctionnaires de police qui opèrent sur le terrain. L'expérience récente du Kosovo, de la Bosnie et de l'Herzégovine est précieuse pour comprendre comment mieux aborder la problématique du radicalisme et celle de la reconstruction de tissus sociaux bouleversés par la guerre ou traversés par des conflits profonds (ouvrage collectif en langue anglaise).
- Published
- 2022
14. Therapeutic effect of immunoadsorption and subsequent immunoglobulin substitution in patients with dilated cardiomyopathy: Results from the observational prospective Bad Berka Registry
- Author
-
Michele Brunelli, Bernward Lauer, Marc-Alexander Ohlow, and Matthias Schreiber
- Subjects
Cardiomyopathy, Dilated ,Male ,medicine.medical_specialty ,medicine.drug_class ,Heart Ventricles ,Adrenergic beta-Antagonists ,Angiotensin-Converting Enzyme Inhibitors ,030204 cardiovascular system & hematology ,Cohort Studies ,Ventricular Dysfunction, Left ,03 medical and health sciences ,0302 clinical medicine ,Diastole ,Internal medicine ,Natriuretic Peptide, Brain ,medicine ,Natriuretic peptide ,Humans ,Registries ,030212 general & internal medicine ,Immunoadsorption ,Immunosorbent Techniques ,Aged ,Autoantibodies ,Ejection fraction ,business.industry ,Therapeutic effect ,Autoantibody ,Stroke Volume ,Dilated cardiomyopathy ,Middle Aged ,medicine.disease ,Peptide Fragments ,Echocardiography ,Immunoglobulin G ,Heart failure ,Cohort ,Quality of Life ,Cardiology ,Female ,Cardiology and Cardiovascular Medicine ,business - Abstract
Background Elimination of cardiac autoantibodies, frequently detected in patients with dilated cardiomyopathy (DCM), with immunoadsorption (IA) improves functional capacity and left ventricular (LV) function. This study aimed to prospectively address this issue in a large cohort of unselected patients. Methods Consecutive patients undergoing IA followed by IgG substitution were included. Clinical and echocardiographic parameters were assessed at baseline (BL) and 12-month follow-up (FU). Patients were classified as IA responders when ≥2 of the following criteria were achieved: improvement in the Minnesota Living with Heart Failure Questionnaire (MLHFQ) ≥5 points, symptoms [≥1 New York Heart Association (NYHA) class], LV ejection fraction (EF) ≥10% or decrease in LV end-diastolic diameter (EDD) ≥10%, or N-terminal pro B-type natriuretic peptide (NT-pro-BNP) ≥50%. Results 93 patients (median age 61 years, LVEF 30%, duration of symptoms 14 months, 87% in NYHA class III/IV, >90% treated with β-blocker/angiotensin-converting enzyme inhibitor) were included. When the entire cohort was analyzed, a significant improvement in MLHFQ (50 vs. 26 points), NYHA-class (median 3.0 vs. 2.0), LVEF (30% vs. 38%), LVEDD (62 vs. 59 mm), NT-pro-BNP (892 vs. 523 pg/ml) was observed at FU ( p n = 43) were classified as responders. Those were characterized by a shorter disease duration (11 vs. 22 months), larger BL LVEDD (64 vs. 60 mm), presence of >1 viral genome, and higher values of mononuclear inflammatory cells at endomyocardial biopsy. Sixteen (17.2%) patients experienced IA related complications. Conclusions A positive response is observed in 48% of inflammatory DCM patients undergoing IA, and this translates into a significant improvement in clinical and echocardiographic parameters.
- Published
- 2017
- Full Text
- View/download PDF
15. Electrocardiographic and Electrophysiological Characteristics of Atrial Tachycardia With Early Activation Close to the His-Bundle
- Author
-
J. Christoph Geller, Antonio Madaffari, Michele Brunelli, Tanja Dähne, Santi Raffa, Markus Frommhold, Giuseppe Oreto, and Anett GROßE
- Subjects
medicine.medical_specialty ,medicine.medical_treatment ,Catheter ablation ,030204 cardiovascular system & hematology ,Bundle of His ,03 medical and health sciences ,0302 clinical medicine ,Physiology (medical) ,Internal medicine ,Heart rate ,medicine ,Sinus rhythm ,cardiovascular diseases ,030212 general & internal medicine ,PR interval ,Atrial tachycardia ,medicine.diagnostic_test ,business.industry ,Ablation ,medicine.anatomical_structure ,cardiovascular system ,Cardiology ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Electrocardiography - Abstract
P-Wave and Ablation in Para-Hisian Atrial Tachycardia Introduction Radiofrequency (RF) ablation of atrial tachycardia (AT) with earliest activation at the His-bundle may be associated with the risk of AV block, and detection of this AT origin using the electrocardiogram (ECG) would be helpful in planning ablation. Aim of this study was to characterize the P-wave morphology and intracardiac electrograms at the successful ablation site for this group of ATs. Methods All consecutive patients undergoing ablation for AT with earliest activation at the His-bundle were included. Twelve-lead ECG and intracardiac electrograms were analyzed. Results A total of 33 patients underwent successful ablation. The P-wave and the PR interval during AT (cycle length 460 ± 88, range 360–670 milliseconds) were significantly shorter compared to sinus rhythm 87 ± 18 vs. 117 ± 23 and 131 ± 37 vs. 170 ± 47 milliseconds, respectively, P < 0.01. In 28 patients (85%), the P-wave was biphasic (–/+) or triphasic (+/–/+) in the precordial leads, especially V4-V6, and in 25 patients (76%) it was biphasic (–/+) or triphasic (+/–/+) in the inferior leads. RF was delivered at the following locations: noncoronary aortic cusp (NCC) in 24 patients, antero-septal left atrium in 4, supero-septal right atrium in 3, left coronary cusp in 1, and between the right coronary cusp and the NCC in 1. Atrial bipolar electrograms at the successful ablation site preceded the P-wave by 38 ± 11 (range 10–60) milliseconds, and AT termination was obtained after a mean RF energy time of 10 ± 8 (range 2–31) seconds. Conclusion A characteristic narrow and biphasic (–/+) or triphasic (+/–/+) P-wave in the inferior and precordial leads reliably identifies the group of AT arising from the para-Hisian region.
- Published
- 2015
- Full Text
- View/download PDF
16. Con gli occhi di chi viaggia. Viaggiatori, mercanti, pellegrini ed avventurieri alla scoperta degli spazi asiatici
- Author
-
Michele Brunelli
- Subjects
Travelogues ,Viaggi ,Settore SPS/14 - Storia e Istituzioni Dell'Asia ,General Medicine ,Orientalismo - Published
- 2015
- Full Text
- View/download PDF
17. Prävention von Taschenkomplikationen nach Implantation von Herzrhythmusdevices
- Author
-
J. Christoph Geller, Björn Buchter, Marc-Alexander Ohlow, Matthias Schreiber, Michele Brunelli, and Bernward Lauer
- Subjects
Gynecology ,medicine.medical_specialty ,business.industry ,Physiology (medical) ,Treatment outcome ,medicine ,Cardiology and Cardiovascular Medicine ,business ,Cardiac imaging ,Cardiac surgery - Abstract
Hintergrund Das Taschenhamatom ist eine haufige Komplikation nach Implantation von Herzrhythmusdevices (HRD, Schrittmacher, ICD, CRT) bei Patienten unter therapeutischer Antikoagulation und/oder dualer Plattchenhemmung (DAPT).
- Published
- 2015
- Full Text
- View/download PDF
18. Acute coronary syndrome without critical epicardial coronary disease: prevalence, characteristics, and outcome
- Author
-
Michele Brunelli, Stefan Richter, Ketevan Tukhiashvili, Bernward Lauer, Ahmed Farah, Marc-Alexander Ohlow, Vincent Wong, Hubertus von Korn, and Nedim Memisevic
- Subjects
Adult ,Male ,medicine.medical_specialty ,Acute coronary syndrome ,medicine.medical_treatment ,Myocardial Infarction ,Chest pain ,Angina Pectoris ,Electrocardiography ,Young Adult ,Percutaneous Coronary Intervention ,Sex Factors ,Internal medicine ,Prevalence ,medicine ,Humans ,Myocardial infarction ,Acute Coronary Syndrome ,Aged ,Retrospective Studies ,Aged, 80 and over ,biology ,business.industry ,Age Factors ,Coronary Stenosis ,Percutaneous coronary intervention ,Stroke Volume ,General Medicine ,Middle Aged ,medicine.disease ,Troponin ,Stenosis ,Treatment Outcome ,Emergency Medicine ,biology.protein ,Cardiology ,Myocardial infarction complications ,Female ,Creatine kinase ,medicine.symptom ,business - Abstract
Absence of significant epicardial coronary artery stenosis in patients with acute onset of chest pain and elevation of myocardial necrosis markers is occasionally observed. The aim of this study was to retrospectively analyze the clinical characteristics and the outcome of such patients.All patients with myocardial infarction (MI) but without significant coronary artery stenosis (≥50%) on angiography from May 2002 to April 2011 were compared with patients undergoing percutaneous coronary intervention due to non-ST-elevation MI (NSTEMI).Of 4311 consecutive patients with MI, 272 patients (6.3%) did not show significant coronary artery stenosis (group I) and were compared with 253 NSTEMI patients (group II). Younger age (61.9±14.0 vs 65.4±12.0 years; P=.003), female sex (49.3% vs 28.9%; P.001), less severe anginal symptoms (Canadian Cardiovascular Society class III/IV 41.9% vs 49.8%; P=.05), lower level of myocardial necrosis marker (1.9±6.7 vs 27.4±68.7 ng/mL [troponin], 3.3±4 vs 14.2±20 mmol/L [creatine kinase]; P.001 for both), and higher left ventricular ejection fraction (58.7%±12.6% vs 48.1%±12.4%; P.01) were associated with group I patients. At a mean follow-up of 22.3±22.9 months, all-cause and cardiac mortality was lower in group I patients (4.9% vs 14.3%; and 2.9% vs 10.1%; P.01, for both). Event-free survival was more frequent in group I patients (58.4% vs 28.8%; P.0001) and inversely related to the troponin level.Absence of significant coronary stenosis accounts for a minority of patients presenting with MI and is associated with a better outcome compared to patients with NSTEMI, and the prognosis is inversely related to the troponin level.
- Published
- 2015
- Full Text
- View/download PDF
19. Isolated Disruption of the Right Coronary Artery Following a Steam Pop during Cavotricuspid Linear Ablation with a Contact Force Catheter
- Author
-
Michele Brunelli, J. Christoph Geller, Markus Frommhold, Bernard Lauer, Dieter Back, and Marco Mierzwa
- Subjects
medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,medicine.medical_treatment ,Perforation (oil well) ,Catheter ablation ,General Medicine ,030204 cardiovascular system & hematology ,medicine.disease ,Pericardial effusion ,Pulmonary vein ,Surgery ,03 medical and health sciences ,Catheter ,0302 clinical medicine ,Right coronary artery ,medicine.artery ,Cardiac tamponade ,Internal medicine ,Angiography ,medicine ,Cardiology ,030212 general & internal medicine ,Cardiology and Cardiovascular Medicine ,business - Abstract
A 70-year-old woman with persistent atrial fibrillation underwent pulmonary vein isolation and linear ablation with a contact sensor catheter. During cavotricuspid isthmus ablation, a steam pop resulted in cardiac tamponade, and the patient developed severe hypotension despite successful pericardial puncture and minimal residual pericardial effusion. Right coronary artery angiography revealed extravasal contrast medium accumulation posterior of the Crux Cordis. Emergent cardiac surgery confirmed isolated disruption of the artery in the absence of additional heart perforation. Although contact sensor catheters may reduce complications, steam pops can still occur and result in dramatic complications.
- Published
- 2016
- Full Text
- View/download PDF
20. P1674Pocket related complications following cardiac rhythm device implantation in patients receiving anticoagulation or dual antiplatelet therapy: Prospective Evaluation of different preventive strategies
- Author
-
J.C. Geller, Bernward Lauer, Michele Brunelli, and Marc-Alexander Ohlow
- Subjects
medicine.medical_specialty ,Rhythm ,business.industry ,Emergency medicine ,medicine ,In patient ,DUAL (cognitive architecture) ,Cardiology and Cardiovascular Medicine ,business ,Prospective evaluation ,Surgery - Published
- 2017
- Full Text
- View/download PDF
21. Characteristics and outcome of primary congenital left ventricular aneurysm and diverticulum: analysis of cases from the literature
- Author
-
Michele Brunelli, Bernward Lauer, and Marc-Alexander Ohlow
- Subjects
Fetus ,medicine.medical_specialty ,Pregnancy ,business.industry ,Obstetrics and Gynecology ,Prenatal diagnosis ,medicine.disease ,Surgery ,Internal medicine ,Hydrops fetalis ,medicine ,Cardiology ,In patient ,Congenital left ventricular aneurysm ,Adverse effect ,business ,Genetics (clinical) ,Diverticulum - Abstract
Objective Congenital left ventricular aneurysm (LVA) and diverticulum (LVD) are rare cardiac anomalies. We aimed to analyse the characteristics and long-term outcome of prenatal diagnosed patients with LVA/LVD. Methods We performed a systematic review of the literature to identify and analyse patients diagnosed prenatally with LVA/LVD. Results Twenty-six fetuses with prenatal diagnosis of LVA (50% male subjects) and 16 with LVD (38% male subjects) were identified. Fetal age at diagnosis was 23.8 ± 6.1 weeks. Mean maternal age was 30.6 ± 6.1 years old. LVA was larger (375 ± 237 vs 60 ± 71 mm2; p = 0.002), and LVA/LVD was frequently observed in an apical location (62%). Associated cardiac/extracardiac defects were reported in 13/42 (31%). Symptomatic patients presented with arrhythmias (LVA 16% vs LVD 0%), hydrops fetalis (LVA 27% vs LVD 18.8%), or rupture (LVA 4% vs LVD 38%; p = 0.02). Size changes of the LVA/LVD during pregnancy were reported in 17%. Fetal death occurred in nine cases (21.4%); termination of pregnancy was performed in six cases (14.3%). All other babies were delivered at term. During follow-up (mean 29.1 ± 38.2 months), the rate of adverse events was significantly increased in patients with LVA (40 vs 0%; p = 0.04) Conclusion The rate of fetal complications including fetal death is high. Long-term outcome among the survivors is significantly worse in patients with LVA. © 2014 John Wiley & Sons, Ltd.
- Published
- 2014
- Full Text
- View/download PDF
22. Internet use in patients with cardiovascular diseases:<u>Ba</u>d<u>B</u>erka Cross-<u>S</u>ectional Stud<u>y</u>(BABSY)
- Author
-
Bernward Lauer, Michele Brunelli, and M-A Ohlow
- Subjects
Adult ,Male ,business.product_category ,Cross-sectional study ,education ,MEDLINE ,Pharmacist ,Disease ,Patient Education as Topic ,Surveys and Questionnaires ,Internet access ,Humans ,Medicine ,Aged ,Aged, 80 and over ,Internet ,Internet use ,Consumer Health Information ,business.industry ,General Medicine ,Middle Aged ,Patient Acceptance of Health Care ,Cross-Sectional Studies ,Cardiovascular Diseases ,Female ,The Internet ,business ,Demography ,Patient education - Abstract
SUMMARY Background: Internet has become a significant resource for dissemination of medical information. We sought to investigate prevalence and usage patterns of Internet access among consecutive patients with cardiovascular diseases. Methods: A cross-sectional study was performed using a questionnaire as study tool. Among patients with Internet access, the type of health information sought and the impact of these on daily life were assessed. Results: Of 1063 patients invited to the study, 1000 patients [68% male gender, mean age 66 11 years (range 27–83 years)] agreed to complete the questionnaire. 216/1000 (21.6%) used Internet to obtain information related to their disease. The patient education was graded as: low (15%), medium (66%) and high (19%). Reasons for Internet use were as follows: 24-h availability 142/216 (65.7%); free of charge 58/216 (26.9%); and anonymity 50/216 (23.2%). Younger ( 66 years) age (35.2% vs. 15.3%; p = 0.0001), male gender (24.6% vs. 15.4%; p = 0.001) and higher education level (49.4% vs. 16.1%; p = 0.001) were significantly associated with Internet use. 30.6% (66/216) of Internet users changed their individual health behaviour attributable to information found on the Internet. However, this was not related to age, gender or level of education (p = 0.5, p = 0.6 and p = 0.4, respectively). Patients without Internet use obtain health information mainly from the pharmacist (62%) or from their treating physician (58%). Conclusions: A relevant number of patients with cardiovascular disease access the Internet for health information. The impact of such information on health-related behaviour in daily life was low. What’s known The Internet is increasingly being used as a source of health information. However, Internet use for health-related information differs considerably with regard to age, gender and type of underlying medical condition. What’s new The results from our study demonstrate that a relevant number of patients with known or suspected cardiovascular diseases access Internet for health purposes. However, Internet use in this group of patients is less frequent than previously reported for other medical conditions. Moreover, the influence of the obtained information on health-related behaviour in daily life was low.
- Published
- 2013
- Full Text
- View/download PDF
23. The Use of a Quadripolar Left Ventricular Lead Increases Successful Implantation Rates in Patients with Phrenic Nerve Stimulation and/or High Pacing Thresholds Undergoing Cardiac Resynchronisation Therapy with Conventional Bipolar Leads
- Author
-
Michele Brunelli, Bernward Lauer, Marc-Alexander Ohlow, Yunis Daralammouri, and J. Christoph Geller
- Subjects
lcsh:Diseases of the circulatory (Cardiovascular) system ,medicine.medical_specialty ,Heart disease ,medicine.medical_treatment ,Cardiac resynchronization therapy ,QRS complex ,Internal medicine ,Physiology (medical) ,Idiopathic dilated cardiomyopathy ,medicine ,cardiac resynchronisation therapy ,lead ,Ejection fraction ,Left bundle branch block ,business.industry ,Threshold ,valvular heart disease ,medicine.disease ,lcsh:RC666-701 ,Heart failure ,Cardiology ,phrenic nerve stimulation ,quadripolar ,Original Article ,business ,Cardiology and Cardiovascular Medicine - Abstract
Background: Phrenic nerve stimulation (PNS) and high pacing thresholds (HPT) hinder biventricular stimulation in patients (pts) undergoing cardiac resynchronization therapy (CRT). A new quadripolar left ventricular (LV) lead (Quartet 1458Q, St. Jude Medical) with increased number of pacing configuration, might overcome this problem. Methods: All consecutive pts in whom a standard bipolar lead intraoperatively resulted in PNS and/or HPT (≥4.00V/1mV), received, during the same implant, a quadripolar LV lead. Aim of the study was to evaluate acute and short term outcome. Results: 26 pts [24 (92%) male, mean age 74±6 years)] with PNS (22 pts; 85%) and HPT (4 pts; 15%) were included. Permanent right ventricular pacing was the reason for broad QRS complex in 4 (15%) pts, whereas all other pts had a left bundle branch block. Severely symptomatic (NYHA Class ≥3) heart failure with reduced ejection fraction (EF 31±9%) was mostly caused by ischemic heart disease (14 pts; 54%) . Idiopathic dilated cardiomyopathy and valvular heart disease were diagnosed in 6 (23%) pts each. In most (24/26, 92%) pts the use of the Quartet lead led to successful biventricular pacing due to a significant reduction in intraoperative pacing threshold (5.2V/1.0ms vs. 1.4V/0.8ms; p=0.03), which was maintained (1.2V/0.7ms) at follow-up. PNS never represented reason for failed LV pacing, neither acutely nor during follow-up. Conclusions: Excessively HPT and/or PNS are frequently encountered when conventional bipolar leads are used for CRT. A new quadripolar LV lead increases the rate of successful biventricular stimulation. Lower pacing threshold and freedom from PNS are maintained at follow-up.
- Published
- 2013
- Full Text
- View/download PDF
24. Incidence and Predictors of Pericardial Effusion After Permanent Heart Rhythm Device Implantation
- Author
-
Bernward Lauer, Michele Brunelli, Marc-Alexander Ohlow, and J. Christoph Geller
- Subjects
Adult ,Male ,Pacemaker, Artificial ,medicine.medical_specialty ,medicine.medical_treatment ,Cardiac resynchronization therapy ,Pericardial effusion ,Pericardial Effusion ,Sex Factors ,Acute pericarditis ,Risk Factors ,Cardiac tamponade ,Internal medicine ,Humans ,Medicine ,Prospective Studies ,Aged ,Aged, 80 and over ,business.industry ,Incidence ,General Medicine ,Middle Aged ,medicine.disease ,Implantable cardioverter-defibrillator ,Defibrillators, Implantable ,Surgery ,Cardiac surgery ,Pericardiocentesis ,Cardiology ,Female ,Tamponade ,Cardiology and Cardiovascular Medicine ,business - Abstract
Background: Pericardial effusion (PE) may complicate permanent heart rhythm device (HRD: pacemaker, implantable cardioverter-defibrillator, and cardiac resynchronization therapy) placement. Incidence of and risk factors for this complication have never been prospectively evaluated. Methods and Results: The subjects of this prospective observational study were 968 consecutive patients undergoing HRD implantation or upgrade, and underwent echocardiographic evaluation before and 24h after the operation. PE was documented in 98 patients (10%), 14 (1.5%) of whom progressed to cardiac tamponade requiring pericardiocentesis (n=12; 86%) or surgical treatment (n=2; 14%). In 70% (10/14) of those patients a bloody effusion suggested cardiac perforation of an implanted lead; acute pericarditis was observed in the remaining 30% (4/14). At multivariate analysis, female gender (hazard ratio [HR], 2.7; 95% confidence interval [CI]: 1.4–3.5, P=0.01) was predictive in the case of any post-procedural PE, whereas intake of antiplatelet medication (HR, 3.1; 95% CI: 2.1–3.8, P=0.01) was predictive for cardiac tamponade. Previous cardiac surgery (HR, 0.70; 95% CI: 0.50–0.92, P=0.02) was a protective factor in any PE and cardiac tamponade. None of the 84 patients with small or moderate PE required pericardial drainage. After 3.1±0.5 months, a PE was no longer observed at echocardiography in 71% of those patients. Conclusions: PE is frequently seen after HRD implantation, but rarely requires any therapy. Female gender and antiplatelet therapy are risk factors, whereas previous cardiac surgery was a protective factor. (Circ J 2013; 77: 975–981)
- Published
- 2013
- Full Text
- View/download PDF
25. Un persiano nella Francia del Re Sole. La controversa ambasciata di Mohammad-Reżā Beg del 1715
- Author
-
Michele Brunelli
- Subjects
Safavidi ,Moḥammad-Reżā Beg ,Persia, Safavidi ,Relazioni franco-persiane ,French-Persian relations ,Persia ,General Medicine ,Safavid dynasty ,Settore SPS/14 - Storia e Istituzioni Dell'Asia - Abstract
Nel 1714 un alto funzionario della corte safavide, Mo? ammad-Reza Beg, venne incaricato dallo Shah di compiere una missione diplomatica a Versailles, nel tentativo di raff orzare le relazioni tra Persia e Francia. Partito da Erivan nel marzo di quell’anno, dopo una serie di disavventure in terra ottomana, giungera a Marsiglia solo nel mese di ottobre. Da qui iniziera una lenta risalita verso Parigi, per poi recarsi a corte ed essere ricevuto dal Re Sole. Lungo il tragitto, Mo? ammad dara riprova del suo carattere iracondo e capriccioso, dei suoi tanti vizi e poche virtu. Lascera un fl ebile ricordo della moda e dei costumi persiani ad una borghesia ed una nobilta in cerca di distrazioni. La novita dettata dall’Orientalismo non bastera tuttavia ad evitargli un giudizio nettamente critico del suo scarso operato politico, non solo da parte dei suoi contemporanei, ma anche dei commentatori del secolo successivo. Il viaggio di Reza Beg e comunque una testimonianza importante del tempo: innanzitutto poiche si tratta della prima ambasceria uffi ciale persiana in Francia, ma anche perche attraverso le varie fonti d’archivio e documentali si puo apprezzare il primo impatto della conoscenza "dell’altro" da parte del popolo francese, sia delle grandi citta, cosi come dei piccoli villaggi che il corteo tocchera nel suo tragitto verso nord, attraverso gli usi, i costumi, i modi e l’agire di questo personaggio controverso.
- Published
- 2016
26. Antisymmetry and sign languages: A comparison between NGT and LIS
- Author
-
Michele Brunelli
- Subjects
Linguistics and Language ,Computer science ,Antisymmetry ,Language and Linguistics ,Linguistics ,Sign (linguistics) - Published
- 2012
- Full Text
- View/download PDF
27. Thromboembolic stroke after cardioversion with incomplete left atrial appendage closure
- Author
-
Michele Brunelli, Koji Hanazawa, and J. Christoph Geller
- Subjects
medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,medicine.medical_treatment ,Warfarin ,General Medicine ,Thromboembolic stroke ,Transesophageal echocardiogram ,Cardioversion ,medicine.disease ,Intracardiac injection ,Dabigatran ,medicine.anatomical_structure ,Internal medicine ,Mitral valve ,medicine ,Cardiology ,cardiovascular diseases ,Thrombus ,Cardiology and Cardiovascular Medicine ,business ,medicine.drug - Abstract
Sirs: A 73-year-old man with persistent Atrial Fibrillation (AF) and a CHA2DS2VASc Score of 3 underwent uneventful percutaneous left atrial appendage (LAA) closure (Watchman, 21 mm, Atritech, Inc., Plymouth, Minnesota) guiding fluoroscopy and transesophageal echocardiogram (TEE) in 2011 because of the inability to keep the INR within the therapeutic range (Fig. 1). TEE revealed residual flow into the LAA after implantation and also during follow-up, no flow was seen directly around the device. Warfarin was stopped 6 weeks and clopidogrel 3 months after implantation, aspirin was continued. Due to progressive arrhythmia symptoms, 15 months after implantation, successful electrical cardioversion was performed on aspirin alone after exclusion of intracardiac thrombi with TEE. The following day, the patient developed right-sided weakness and aphasia, cerebral computed tomography (CT) showed ischemia in the territory of the left medial cerebral artery. Repeat analysis of the previous TEE images revealed residual narrow flow (speed [40 cm/s) in the lateral portion of the LAA (Fig. 2). On cardiac CT, the occluder was positioned in one of the two LAA lobes and the other lobe was not occluded (Fig. 3). There was no evidence of intracardiac thrombus. The neurologic symptoms resolved quickly, and oral anticoagulation (Dabigatran, 2 9 150 mg/day) was started. Interventional LAA closure is as effective as oral anticoagulation in patients with non-valvular AF [1–6], and some case reports [7, 8] pointed out that a combined mitral valve treatment and interventional LAA closure in patients with AF and mitral valve disease is effective in reducing thromboembolic complications. In one analysis, residual peri-device flow was not associated with an increased risk of thromboembolism in PROTECT-AF [9]. However, the risk of thromboembolic complications in patients undergoing cardioversion is unknown, and there is no clear evidence that cardioversion can be performed without anticoagulant treatment after mechanical LAA occlusion. In this case, there are several important points: (1) the cause of ischemia was presumably cardiac embolic in origin (although the TEE before cardioversion did not show any thrombus). Therefore, as suggested in the guidelines, effective anticoagulant treatment is mandatory for 4 weeks after cardioversion despite closure of the LAA. The role of residual flow into the LAA after interventional LAA occlusion in increasing the risk of thromboembolic complications after cardioversion is unknown. In addition, thrombi might also evolve in the left atrium cavity due to atrial stunning after cardioversion. (2) The CT (Fig. 3) revealed a more complex 3D anatomy of the LAA, which was not seen with TEE or fluoroscopy (Fig. 1) during the procedure. Therefore, it is recommended to assess LAA anatomy with different two-dimensional views (preferably with 3D) in Electronic supplementary material The online version of this article (doi:10.1007/s00392-014-0724-0) contains supplementary material, which is available to authorized users.
- Published
- 2014
- Full Text
- View/download PDF
28. Voltage mapping and pacing to assess the level of pulmonary venous isolation achieved with a novel circular multielectrode ablation catheter
- Author
-
Santi Raffa, Kristel Wauters, Michele Brunelli, Johann Christoph Geller, Anett Grosse, and Cardio-vascular diseases
- Subjects
Male ,medicine.medical_specialty ,medicine.medical_treatment ,New ablation catheters ,Population ,Sensitivity and Specificity ,Pulmonary vein isolation ,Pulmonary vein ,Heart Conduction System ,Physiology (medical) ,Internal medicine ,Atrial Fibrillation ,medicine ,Humans ,Sinus rhythm ,Vein ,education ,education.field_of_study ,business.industry ,Body Surface Potential Mapping ,Cardiac Pacing, Artificial ,Reproducibility of Results ,Atrial fibrillation ,voltage mapping ,Middle Aged ,medicine.disease ,Ablation ,Catheter ,Ostium ,Treatment Outcome ,medicine.anatomical_structure ,Pulmonary Veins ,cardiovascular system ,Cardiology ,Female ,Cardiology and Cardiovascular Medicine ,business - Abstract
Aims The aim of the study was to determine the level of pulmonary vein (PV) isolation achieved with the use of a novel radiofrequency circular multielectrode ablation catheter [pulmonary vein ablation catheter (PVAC)] in patients with paroxysmal atrial fibrillation. Although some efficacy data have been presented, the level of PV isolation, which is crucial both for efficacy and safety of the ablation, has not been defined with this new ablation catheter. Methods and results Detailed sinus rhythm voltage maps using an electroanatomic mapping system and projected on 3D computed tomography-derived reconstructions of the left atrium (LA) were obtained before and after PV isolation with the PVAC. Left atrium–PV entry and exit block was assessed for each vein. The population consisted of 12 patients, mean age 57 ± 6 years, seven male. After ablation, an extensive zone of potential reduction that included the ostium of each PV was observed in all patients. Bipolar voltages were significantly reduced in all PVs and in the LA close to the vein ostia, the mean voltage reduction was >80%. Conclusion Using the PVAC, (i) PVs are isolated at the level of the PV ostium and, importantly, outside the tubular portion and (ii) significant voltage reduction is also recorded at various extent proximal to the PV ostium at the level of the antral region.
- Published
- 2010
- Full Text
- View/download PDF
29. Isolated Disruption of the Right Coronary Artery Following a Steam Pop during Cavotricuspid Linear Ablation with a Contact Force Catheter
- Author
-
Michele, Brunelli, Markus, Frommhold, Dieter, Back, Marco, Mierzwa, Bernard, Lauer, and J Christoph, Geller
- Subjects
Treatment Outcome ,Atrial Fibrillation ,Body Surface Potential Mapping ,Catheter Ablation ,Humans ,Female ,Wounds, Penetrating ,Coronary Vessels ,Aged - Abstract
A 70-year-old woman with persistent atrial fibrillation underwent pulmonary vein isolation and linear ablation with a contact sensor catheter. During cavotricuspid isthmus ablation, a steam pop resulted in cardiac tamponade, and the patient developed severe hypotension despite successful pericardial puncture and minimal residual pericardial effusion. Right coronary artery angiography revealed extravasal contrast medium accumulation posterior of the Crux Cordis. Emergent cardiac surgery confirmed isolated disruption of the artery in the absence of additional heart perforation. Although contact sensor catheters may reduce complications, steam pops can still occur and result in dramatic complications.
- Published
- 2015
30. Electrocardiographic and Electrophysiological Characteristics of Atrial Tachycardia With Early Activation Close to the His-Bundle
- Author
-
Antonio, Madaffari, Anett, Große, Michele, Brunelli, Markus, Frommhold, Tanja, Dähne, Giuseppe, Oreto, Santi, Raffa, and J Christoph, Geller
- Subjects
Male ,Bundle of His ,Electrocardiography ,Heart Rate ,Predictive Value of Tests ,Catheter Ablation ,Tachycardia, Supraventricular ,Action Potentials ,Humans ,Female ,Middle Aged ,Electrophysiologic Techniques, Cardiac ,Aged - Abstract
Radiofrequency (RF) ablation of atrial tachycardia (AT) with earliest activation at the His-bundle may be associated with the risk of AV block, and detection of this AT origin using the electrocardiogram (ECG) would be helpful in planning ablation. Aim of this study was to characterize the P-wave morphology and intracardiac electrograms at the successful ablation site for this group of ATs.All consecutive patients undergoing ablation for AT with earliest activation at the His-bundle were included. Twelve-lead ECG and intracardiac electrograms were analyzed.A total of 33 patients underwent successful ablation. The P-wave and the PR interval during AT (cycle length 460 ± 88, range 360-670 milliseconds) were significantly shorter compared to sinus rhythm 87 ± 18 vs. 117 ± 23 and 131 ± 37 vs. 170 ± 47 milliseconds, respectively, P0.01. In 28 patients (85%), the P-wave was biphasic (-/+) or triphasic (+/-/+) in the precordial leads, especially V4 -V6 , and in 25 patients (76%) it was biphasic (-/+) or triphasic (+/-/+) in the inferior leads. RF was delivered at the following locations: noncoronary aortic cusp (NCC) in 24 patients, antero-septal left atrium in 4, supero-septal right atrium in 3, left coronary cusp in 1, and between the right coronary cusp and the NCC in 1. Atrial bipolar electrograms at the successful ablation site preceded the P-wave by 38 ± 11 (range 10-60) milliseconds, and AT termination was obtained after a mean RF energy time of 10 ± 8 (range 2-31) seconds.A characteristic narrow and biphasic (-/+) or triphasic (+/-/+) P-wave in the inferior and precordial leads reliably identifies the group of AT arising from the para-Hisian region.
- Published
- 2015
31. C242T Polymorphism in CYBA Gene (p22phox) and Risk of Coronary Artery Disease in a Population of Caucasian Italians
- Author
-
Patrizia Fabbi, Antonio Barsotti, Silvano Garibaldi, Paola Altieri, Claudio Brunelli, Luca Bacino, Paolo Spallarossa, Luisa Polito, Giorgio Ghigliotti, Sabina Nasti, and Michele Brunelli
- Subjects
Male ,medicine.medical_specialty ,Clinical Biochemistry ,Population ,Coronary Artery Disease ,Chest pain ,White People ,Coronary artery disease ,Gene Frequency ,Internal medicine ,Genetics ,medicine ,Humans ,Genetic Predisposition to Disease ,education ,gene ,Molecular Biology ,Allele frequency ,education.field_of_study ,lcsh:R5-920 ,Polymorphism, Genetic ,biology ,business.industry ,cardiovascular ,Biochemistry (medical) ,Coronary Stenosis ,NAD(P)H oxidase ,NADPH Oxidases ,General Medicine ,medicine.disease ,Stenosis ,Italy ,variant ,Oxidative stress ,Coronary vessel ,Cardiology ,biology.protein ,Female ,P22phox ,Other ,medicine.symptom ,business ,lcsh:Medicine (General) - Abstract
Background: specific polymorphisms of genes regulating intracellular redox balance and oxidative stress are related to atherogenesis. Some studies have identified a relationship between progression of atherosclerosis and C242T mutation in CYBA gene coding for p22phox, a subunit of the NADH/NADPH oxidase system.Design: we investigated whether the C242T nucleotide transition is associated with the presence of coronary artery disease (CAD) in a population of 494 Caucasian Italians undergoing coronary angiography to diagnose the cause of chest pain.Results: the frequency of the T mutant allele that we found in 276 patients with angiographically documented CAD was significantly higher compared to what we observed in 218 subjects with normal coronary arteries (Controls) (respectively: 0.400 and 0.332,p< 0.01). The prevalence of the T allele was even stronger when we compared: 1) early onset (age ≤55) vs late onset (age ≥65) single-vessel CAD patients (respectively: 0.75 and 0.48,p< 0.05), and 2) the subgroup of CAD patients with at least one ≥98% stenosis in a coronary vessel vs those with no ≥98% stenosis in a coronary vessel (respectively: 0.425 and 0.365,p< 0.05).Conclusions: these results support the increased risk of developing early CAD and of having rapid progression of coronary stenosis in subjects carrying the C242T nucleotide transition among the Italian population.
- Published
- 2006
32. Sei giorni con lo Shāh. Un commento alla lettera di un viaggiatore veneziano alla corte di ‘Abbās il Grande
- Author
-
Michele Brunelli
- Subjects
ʿAbbās I ,Persia ,Dinastia safavide ,Isfahān ,Relazioni veneziano-persiane ,travelogues ,Safavid dynasty ,Venetian-Persian relations ,General Medicine ,Settore SPS/14 - Storia e Istituzioni Dell'Asia - Abstract
Sin dalla dominazione mongola e timuride in Iran, i travelogues hanno rappresentato una tra le principali fonti della storia persiana. L’intervento qui proposto prende in esamina una lettera scritta da Giacomo Fava, mercante veneziano del XVI secolo, durante la sua visita nella nuova capitale dell’Impero Safavide, sotto il regno di Shah ‘Abbas. In particolare, attraverso l’analisi del racconto, giunto a noi sottoforma di lettera, il paper intende presentare l’esperienza fatta da Fava durante i sei giorni che trascorse in compagnia del sovrano persiano, riportando, descrivendo e commentando le impressioni, sul sovrano, sulla citta e sulle "celebrazioni solenni" il "otor-qorbani " (il sacrifi cio del cammello) a cui prese parte. La lettera non e mai stata oggetto di pubblicazione in precedenza, se non in una edizione del Thesoro Politico del 1608. L’intento e di dare un contributo agli studi storici dei travelogues ed alla storia delle relazioni tra la Serenissima Repubblica di Venezia e la Persia safavide.
- Published
- 2015
33. 1169Contact force ablation catheters do not significantly reduce the rate of adenosine and spontaneous pulmonary vein reconnection in patients undergoing ablation for atrial fibrillation
- Author
-
Laura Vitali-Serdoz, S. Ngoli, Jc. Geller, H. Rittger, Y. Doroshenko, Michele Brunelli, Dirk Bastian, J. Walaschek, H. Schmidt, and T. Baldauf
- Subjects
medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Atrial fibrillation ,medicine.disease ,Ablation ,Adenosine ,Pulmonary vein ,Physiology (medical) ,Internal medicine ,Anesthesia ,Cardiology ,Medicine ,In patient ,Cardiology and Cardiovascular Medicine ,business ,medicine.drug - Published
- 2017
- Full Text
- View/download PDF
34. P1440A prospective observational study of patients undergoing radiofrequency catheter ablation for arrhythmia recurrence after Cryo-MAZE surgery
- Author
-
Jc. Geller, T. Baldauf, Markus Frommhold, Thomas Kuntze, E. Girdauskas, Anett Grosse, Michele Brunelli, and Santi Raffa
- Subjects
medicine.medical_specialty ,Radiofrequency catheter ablation ,business.industry ,Physiology (medical) ,medicine ,Observational study ,Cardiology and Cardiovascular Medicine ,business ,Surgery - Published
- 2017
- Full Text
- View/download PDF
35. P941Zero or near zero fluoroscopy for catheter ablation of supraventricular right atrial tachycardia can be achieved with the use of a three-dimensional mapping system
- Author
-
T. Baldauf, S. Ngoli, H. Schmidt, J. Walaschek, H. Rittger, Y. Doroshenko, Michele Brunelli, Dirk Bastian, and Laura Vitali-Serdoz
- Subjects
Tachycardia ,medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,medicine.medical_treatment ,Zero (complex analysis) ,Catheter ablation ,Right atrial ,Physiology (medical) ,Internal medicine ,Mapping system ,medicine ,Cardiology ,Fluoroscopy ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business - Published
- 2017
- Full Text
- View/download PDF
36. P1438Implementation of a strict X-Ray reduction protocol leads to zero fluoroscopy in the majority of patients undergoing 3-D mapping guided catheter ablation for atrial fibrillation
- Author
-
Michele Brunelli, Dirk Bastian, H. Rittger, H. Schmidt, T. Baldauf, J. Walaschek, Laura Vitali-Serdoz, Y. Doroshenko, and S. Ngoli
- Subjects
medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,medicine.medical_treatment ,Atrial fibrillation ,Catheter ablation ,medicine.disease ,Physiology (medical) ,Medicine ,Fluoroscopy ,Radiology ,3 d mapping ,Cardiology and Cardiovascular Medicine ,business ,Reduction (orthopedic surgery) - Published
- 2017
- Full Text
- View/download PDF
37. [Prevention of pocket-related complications following heart rhythm device implantation. D-Stat Hemostat™ versus vacuum drainage]
- Author
-
Marc-Alexander, Ohlow, Björn, Buchter, Michele, Brunelli, Bernward, Lauer, Matthias, Schreiber, and J Christoph, Geller
- Subjects
Male ,Hematoma ,Pacemaker, Artificial ,Prosthesis-Related Infections ,Treatment Outcome ,Humans ,Female ,Suction ,Hemostatics ,Aged - Abstract
Pocket hematoma is a common complication after heart rhythm device implantation (HRD) in patients receiving anticoagulation and/or dual antiplatelet therapy (DAPT).We conducted a prospective case-control study and enrolled all patients admitted for HRD receiving anticoagulation or DAPT. Participants received D-Stat (a mixture of collagen and thrombin) into the pectoral pocket and were compared with an age- and gender-matched group receiving a vacuum drainage system. The primary endpoint was a composite of hematoma needing evacuation and pocket infection.We included a total of 164 patients (mean age 73 ± 10.7 years; 118 [72 %] men). In all, 82 patients (50 %) received D-stat and 82 (50 %) vacuum drainage. There were 83 (51 %) patients who were treated with anticoagulation, 69 (42 %) patients received DAPT, and 11 (7 %) patients both. The primary endpoint occurred in 14.5 % (12/82) of patients in the D-Stat group and 0 % (0/82) of patients in the drainage group (p 0.01). The use of D-Stat solution was associated with an increased incidence of pocket hematoma requiring evacuation (8.5 % versus 0 %; p = 0.01), and tended to an increased rate of pocket infections (6.1 % versus 0 %; p = 0.06). Postoperative immunoglobulin E levels (106 ± 219 IU/ml [D-Stat] versus 117 ± 189 IU/ml [drainage]) and increase of C-reactive protein (D-Stat: ∆19 mg/l versus drainage: ∆21 mg/l) were similar in both groups (p = 0.7 and p = 0.5, respectively).Administration of D-Stat solution is associated with a higher rate of pocket hematoma requiring reoperation in a high risk population receiving anticoagulation and/or DAPT. The observed rate of pocket infections in the D-Stat group is a matter of concern.
- Published
- 2014
38. Left superior vena cava conduction to the left atrium unmasked by adenosine in a patient with paroxysmal atrial fibrillation during pulmonary vein isolation
- Author
-
Anett Grosse, Santi Raffa, Johann Christoph Geller, Regoli F, and Michele Brunelli
- Subjects
medicine.medical_specialty ,Adenosine ,Vena Cava, Superior ,Paroxysmal atrial fibrillation ,Vasodilator Agents ,Pulmonary vein ,Diagnosis, Differential ,Electrocardiography ,Heart Conduction System ,Physiology (medical) ,Internal medicine ,Atrial Fibrillation ,medicine ,Humans ,Heart Atria ,cardiovascular diseases ,Persistent left superior vena cava ,Coronary sinus ,Aged ,medicine.diagnostic_test ,business.industry ,Atrial fibrillation ,medicine.disease ,Pulmonary Veins ,Anesthesia ,cardiovascular system ,Cardiology ,Female ,Electrical conduction system of the heart ,Cardiology and Cardiovascular Medicine ,business ,medicine.drug - Abstract
The use of adenosine in unmasking potential 'trigger' activity in a patient with paroxysmal atrial fibrillation (AF) and persistent left superior vena cava (LSVC) has never been reported. In a 75-year-old woman with paroxysmal AF and LSVC anomaly, pulmonary vein isolation (PVI) procedure was performed. After successful PVI, repeated bolus adenosine infusions were given. Adenosine response originating from the LSVC was observed: it was reproducible, brief, and exhibited decremental atrial-to-LSVC conduction properties until cessation. Pacing from the LSVC resulted in atrial capture (confirming vein-to-atrium conduction). Disconnection of the LSVC from the coronary sinus (CS) was obtained by successfully ablating within the distal CS. Adenosine challenge may be important to identify AF triggers in non-PVI foci.
- Published
- 2009
- Full Text
- View/download PDF
39. Characteristics and outcome of primary congenital left ventricular aneurysm and diverticulum: analysis of cases from the literature
- Author
-
Marc-Alexander, Ohlow, Michele, Brunelli, and Bernward, Lauer
- Subjects
Heart Defects, Congenital ,Diverticulum ,Pregnancy ,Heart Ventricles ,Prenatal Diagnosis ,Humans ,Female ,Heart Aneurysm ,Prognosis ,Fetal Death - Abstract
Congenital left ventricular aneurysm (LVA) and diverticulum (LVD) are rare cardiac anomalies. We aimed to analyse the characteristics and long-term outcome of prenatal diagnosed patients with LVA/LVD.We performed a systematic review of the literature to identify and analyse patients diagnosed prenatally with LVA/LVD.Twenty-six fetuses with prenatal diagnosis of LVA (50% male subjects) and 16 with LVD (38% male subjects) were identified. Fetal age at diagnosis was 23.8 ± 6.1 weeks. Mean maternal age was 30.6 ± 6.1 years old. LVA was larger (375 ± 237 vs 60 ± 71 mm(2); p = 0.002), and LVA/LVD was frequently observed in an apical location (62%). Associated cardiac/extracardiac defects were reported in 13/42 (31%). Symptomatic patients presented with arrhythmias (LVA 16% vs LVD 0%), hydrops fetalis (LVA 27% vs LVD 18.8%), or rupture (LVA 4% vs LVD 38%; p = 0.02). Size changes of the LVA/LVD during pregnancy were reported in 17%. Fetal death occurred in nine cases (21.4%); termination of pregnancy was performed in six cases (14.3%). All other babies were delivered at term. During follow-up (mean 29.1 ± 38.2 months), the rate of adverse events was significantly increased in patients with LVA (40 vs 0%; p = 0.04) CONCLUSION: The rate of fetal complications including fetal death is high. Long-term outcome among the survivors is significantly worse in patients with LVA.
- Published
- 2013
40. Conduction recovery at the mitral isthmus triggers atrial fibrillation in a patient with rate-dependent ‘block’ and recurrent atrial fibrillation after previous pulmonary vein isolation and left atrial linear ablation
- Author
-
J. Christoph Geller, Anna Cima, Tanja Dähne, and Michele Brunelli
- Subjects
medicine.medical_specialty ,medicine.medical_treatment ,Catheter ablation ,Pulmonary vein ,Electrocardiography ,Recurrence ,Physiology (medical) ,Internal medicine ,Atrial Fibrillation ,medicine ,Humans ,Heart Atria ,Aged ,medicine.diagnostic_test ,business.industry ,P wave ,Atrial fibrillation ,Ablation ,medicine.disease ,Catheter ,Treatment Outcome ,Pulmonary Veins ,Catheter Ablation ,cardiovascular system ,Cardiology ,Female ,Cardiology and Cardiovascular Medicine ,business ,Anti-Arrhythmia Agents ,Linear ablation - Abstract
After previous pulmonary vein isolation and left atrial linear ablation for persistent atrial fibrillation (AF), a 70-year-old woman was referred for a redo procedure due to paroxysmal AF not controlled with antiarrhythmic drugs. Catheter movement induced AF that spontaneously went into an …
- Published
- 2016
- Full Text
- View/download PDF
41. 56-73: Concomitant Structural Heart Disease does not predict Tachycardiomyopathy in a Large Series of Patients with Atrial Fibrillation
- Author
-
Antonio Madaffari, Michele Brunelli, J. Christoph Geller, Markus Frommhold, Santi Raffa, Tanja Dähne, and Anett Grosse
- Subjects
medicine.medical_specialty ,Heart disease ,business.industry ,Physiology (medical) ,Internal medicine ,Concomitant ,medicine ,Cardiology ,Large series ,Atrial fibrillation ,Cardiology and Cardiovascular Medicine ,medicine.disease ,business - Published
- 2016
- Full Text
- View/download PDF
42. 136-13: Careful Setting of the Fluoroscopy Leads to Significant Reduction in X-Ray Exposure during Catheter Ablation: a Prospective Study in Patients with Atrial Fibrillation
- Author
-
Anett Grosse, Markus Frommhold, J. Christoph Geller, Michele Brunelli, Santi Raffa, Antonio Madaffari, and Tanja Dähne
- Subjects
medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,medicine.medical_treatment ,Atrial fibrillation ,Catheter ablation ,medicine.disease ,X ray exposure ,Physiology (medical) ,medicine ,Fluoroscopy ,In patient ,Radiology ,Cardiology and Cardiovascular Medicine ,Prospective cohort study ,business ,Reduction (orthopedic surgery) - Published
- 2016
- Full Text
- View/download PDF
43. 56-09: Modified Transseptal Puncture Technique to Achieve Success and Ensure Safety in all Patients
- Author
-
J. Christoph Geller, Michele Brunelli, and Tanja Dähne
- Subjects
medicine.medical_specialty ,business.industry ,Physiology (medical) ,Medicine ,Cardiology and Cardiovascular Medicine ,business ,Surgery - Published
- 2016
- Full Text
- View/download PDF
44. 216-25: Bidirectional Block or Slow Conduction at the Roof after Wide Antral Catheter Ablation for Atrial Fibrillation
- Author
-
Michele Brunelli, Tanja Dähne, J. Christoph Geller, and Markus Frommhold
- Subjects
medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Atrial fibrillation ,Catheter ablation ,medicine.disease ,Physiology (medical) ,Internal medicine ,Block (telecommunications) ,medicine ,Cardiology ,Cardiology and Cardiovascular Medicine ,business ,Antrum - Published
- 2016
- Full Text
- View/download PDF
45. 136-17: Identical Rate of Symptomatic Intracranial Embolic Events with the PVAC vs. Irrigated-Tip in a Large Consecutive Series of Patients Undergoing Ablation for Atrial Fibrillation
- Author
-
Anett Grosse, Michele Brunelli, J. Christoph Geller, Santi Raffa, Antonio Madaffari, Tanja Dähne, and Markus Frommhold
- Subjects
medicine.medical_specialty ,Series (stratigraphy) ,business.industry ,Physiology (medical) ,medicine.medical_treatment ,Internal medicine ,medicine ,Cardiology ,Atrial fibrillation ,Cardiology and Cardiovascular Medicine ,Ablation ,medicine.disease ,business - Published
- 2016
- Full Text
- View/download PDF
46. Long-term prognosis of adult patients with isolated congenital left ventricular aneurysm or diverticulum and abnormal electrocardiogram patterns
- Author
-
Ulrich Lotze, Bernward Lauer, Michele Brunelli, Marc-Alexander Ohlow, and J. Christoph Geller
- Subjects
Adult ,Male ,medicine.medical_specialty ,Time Factors ,Disease-Free Survival ,Electrocardiography ,Aneurysm ,Internal medicine ,medicine ,Clinical endpoint ,Humans ,cardiovascular diseases ,Heart Aneurysm ,Adverse effect ,Survival rate ,Aged ,medicine.diagnostic_test ,business.industry ,Incidence (epidemiology) ,General Medicine ,Middle Aged ,medicine.disease ,Radiography ,Survival Rate ,Diverticulum ,Left Ventricular Aneurysm ,Cardiology ,Female ,Cardiology and Cardiovascular Medicine ,business - Abstract
Background: Congenital left ventricular aneurysm (LVA) and diverticulum (LVD) are rare cardiac anomalies frequently associated with electrocardiogram (ECG) abnormalities. The aim of this study was to evaluate the long-term prognosis in such patients. Methods and Results: A total of 108 patients with LVA or LVD having ECG-abnormalities were assessed. The patients were classified into 2 groups according to ECG abnormalities: a distinct ECG group (8 ECG patterns known to be frequently associated with LVA/LVD); and a control group (all other ECG abnormalities). The primary endpoint was a composite of cardiac death, rhythm disturbances, syncope, embolic events, and hospitalization for cardiovascular events. Mean patient age was 64±10 years; 45 (42%) were male; median follow-up (FU) was 50 months. The primary endpoint occurred in 12/27 patients from the distinct ECG group and in 15/81 patients in the control group (44% vs. 19%; P=0.01). Cardiac event rate per year (CER) was 1.8% vs. 0.8%, respectively. There were no cardiac deaths during FU. Symptoms (arrhythmia-related symptoms, syncope, and embolic events) at time of diagnosis increased the incidence of adverse events during FU (70% vs. 28%; P=0.05; CER 2.9% vs. 1.1%). Age ≥64 years, presence of LVD, gender, and location of the anomaly did not affect the incidence of adverse events. Conclusions: The incidence of adverse events in symptomatic patients with isolated LVA or LVD and distinct abnormal ECG patterns is increased during long-term FU. None of the present patients, however, experienced cardiac death. (Circ J 2012; 76: 2465–2470)
- Published
- 2012
47. Influence of the anatomic characteristics of the pulmonary vein ostium, the learning curve, and the use of a steerable sheath on success of pulmonary vein isolation with a novel multielectrode ablation catheter
- Author
-
Kristel Wauters, Matthias Schreiber, Stefania Menoni, Anett Große, J. Christoph Geller, Santi Raffa, and Michele Brunelli
- Subjects
Male ,medicine.medical_specialty ,Isolation (health care) ,medicine.medical_treatment ,Left atrium ,Catheter ablation ,Pulmonary vein ,Interquartile range ,Physiology (medical) ,Atrial Fibrillation ,medicine ,Humans ,Heart Atria ,Aged ,business.industry ,Middle Aged ,Ablation ,Surgery ,Electrodes, Implanted ,Catheter ,Ostium ,medicine.anatomical_structure ,Treatment Outcome ,Pulmonary Veins ,cardiovascular system ,Catheter Ablation ,Female ,Cardiology and Cardiovascular Medicine ,business ,Nuclear medicine ,Tomography, X-Ray Computed ,Learning Curve - Abstract
Aims Anatomic variability of the pulmonary vein (PV) ostium may adversely affect isolation rates with the circular fixed-size pulmonary vein ablation catheter (PVAC). We wanted to assess the influence on PV isolation rates of anatomic characteristics of the ostium, increasing experience of four different operators, and additional use of a steerable sheath. Methods and results In the first 190 patients (pts) undergoing PVAC ablation, minimum/maximum diameter, area and shape of the PV ostia, and the length of a common ostium were analysed from computed tomography 3D reconstructions of the left atrium and related to isolation rates. In addition, a comparison was drawn between pts at the beginning and after completion (isolation of all PVs in ≥85% of pts) of the learning curve, and the effect of a steerable sheath was assessed. Pulmonary vein isolation was achieved with the PVAC alone in 85% of pts and in 94% of veins after a median procedure and ablation time of 154 [interquartile ranges (IQR): 120, 200] and 51 (IQR: 38, 70) min. An increase in isolation rates was observed after the first 60 pts (73 vs. 90% of pts; P < 0.01; 88 vs. 96% of PVs; P < 0.001), coincident with routine use of a steerable sheath. Anatomic characteristics (larger minimum diameter and area) identified unsuccessful isolation only of the left inferior PV at the beginning of the learning curve. Conclusions Pulmonary vein isolation rates using this catheter are high. Anatomic variability of PV ostia modestly affects PV isolation rates. Standard use of a steerable sheath plays a major role in increasing isolation rates and overcoming ‘difficult’ anatomies.
- Published
- 2011
48. Catheter ablation of atrial fibrillation without prior transoesophageal echocardiography: are we there yet?
- Author
-
Michele Brunelli and J. Christoph Geller
- Subjects
medicine.medical_specialty ,medicine.medical_treatment ,Catheter ablation ,Transoesophageal echocardiography ,Asymptomatic ,Risk Factors ,Physiology (medical) ,Internal medicine ,Thromboembolism ,Atrial Fibrillation ,medicine ,Humans ,Mass Screening ,In patient ,Mass screening ,business.industry ,Pulmonary vein ablation ,Atrial fibrillation ,medicine.disease ,Ablation ,Surgery ,Pulmonary Veins ,Cardiology ,Catheter Ablation ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Echocardiography, Transesophageal - Abstract
This editorial refers to ‘Usefulness of transoesophageal echocardiography before circumferential pulmonary vein ablation in patients with atrial fibrillation: is it really mandatory?’ by N. Calvo et al., on page 486. The risk of thrombo-embolic events at the time of the procedure remains one of the most serious complications of catheter ablation in patients with atrial fibrillation (AF). The published incidence of symptomatic thrombo-embolic events ranges from 0 to 7%, 1‐6 and data from (active) screening for asymptomatic thrombo-embolic events after ablation suggest that the true event rate is even higher. 7‐9 Therefore, prevention of
- Published
- 2011
49. Close proximity between pulmonary artery and left atrial appendage leading to perforation of the artery, tamponade and death after appendage closure using cardiac plug device
- Author
-
Santi Raffa, Michele Brunelli, J. Christoph Geller, Koji Hanazawa, Anett Große, Bernward Lauer, and Joerg Saenger
- Subjects
Appendage ,medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Perforation (oil well) ,medicine.disease ,Left atrial appendage occlusion ,Sudden death ,medicine.anatomical_structure ,Internal medicine ,medicine.artery ,Cardiac tamponade ,Pulmonary artery ,medicine ,Cardiology ,Tamponade ,Cardiology and Cardiovascular Medicine ,business ,Artery - Published
- 2014
- Full Text
- View/download PDF
50. Increased neutrophil lifespan in patients with congestive heart failure
- Author
-
Giorgio Ghigliotti, Chiara Barisione, Antonio Barsotti, Luca Corsiglia, Michele Brunelli, Paolo Spallarossa, Claudio Brunelli, Silvano Garibaldi, Valentina Boasi, I. Tracchi, and Marzia Mura
- Subjects
medicine.medical_specialty ,Endothelium ,Neutrophils ,Renal function ,Inflammation ,Apoptosis ,Enzyme-Linked Immunosorbent Assay ,chemistry.chemical_compound ,Leukocyte Count ,Internal medicine ,medicine ,Humans ,cardiovascular diseases ,Propidium iodide ,Prospective Studies ,Survival rate ,Cells, Cultured ,Aged ,Heart Failure ,Ejection fraction ,business.industry ,Stroke Volume ,medicine.disease ,Prognosis ,Endocrinology ,medicine.anatomical_structure ,C-Reactive Protein ,chemistry ,Heart failure ,Disease Progression ,Endothelium, Vascular ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,circulatory and respiratory physiology ,Follow-Up Studies - Abstract
Aims Congestive heart failure (CHF) can be thought of as a state of chronic immune activation. Polymorphonuclear neutrophil (PMN) apoptosis is one of the mechanisms responsible for the resolution of inflammation. A reduced PMN apoptotic rate in CHF patients may generate a persistent inflammatory response and hence mediate tissue damage in this group of patients. We aimed to measure levels of spontaneous apoptosis of circulating PMNs in CHF patients and in controls, and to examine whether NYHA class, left ventricular ejection fraction (LV-EF), and laboratory parameters of inflammation, endothelial damage, and of liver and renal function, could predict the rate of PMN apoptosis in CHF patients. Methods and results A total of 29 CHF patients and 26 controls were studied. Propidium iodide and flow cytometry were used to assess PMN apoptosis. Delay in PMN apoptosis was expressed as percentage (expressed as median, first and third quartiles) of surviving PMNs in the study subjects. We found an increased percentage of surviving PMNs [38(27.1–47.1)] in CHF patients compared with controls [19.4 (15.8–25.2)] (P < 0.05). The PMN survival rate in the CHF group was correlated to NYHA class, and plasma levels of C-reactive protein and alkaline phosphatase, while it was inversely correlated to LV-EF and protein levels. A positive relationship between PMN survival and increased ex vivo endothelial apoptosis was found. Conclusion Increased PMN lifespan in patients with worsening CHF could be used as a novel measurement of tissue and endothelial damage in this group of patients.
- Published
- 2009
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.