Reproducibility of acute pulmonary vein isolation guided by the ablation index.

BACKGROUND: Atrial fibrillation (AF) ablation outcome is still operator dependent. Ablation Index (AI) is a new lesion quality marker that has been demonstrated to allow acute durable pulmonary vein (PV) isolation followed by a high single-procedure arrhythmia-free survival. This prospective, multicenter study was designed to evaluate the reproducibility of acute PV isolation guided by the AI. METHODS: A total of 490 consecutive patients with paroxysmal (80.4%) and persistent AF underwent first time PV encircling and were divided in four study groups according to operator preference in choosing the ablation catheter (a contact force [ST] or contact force surround flow [STSF] catheter) and the AI setting (330 at posterior and 450 at anterior wall or 380 at posterior and 500 at anterior wall). Radiofrequency was delivered targeting interlesion distance ≤6 mm. RESULTS: The rate of first-pass PV isolation (ST330 90 ± 16%, ST380 87 ± 19%, STSF330 90 ± 17%, STSF380 91 ± 15%, P = .585) was similar among the four study groups, whereas procedure (ST330 129 ± 44 minutes, ST380 144 ± 44 minutes, STSF330 120 ± 72 minutes, STSF380 125 ± 73 minutes, P < .001) and fluoroscopy time (ST330 542 ± 285 seconds, ST380 540 ± 416 seconds, STSF330 257 ± 356 seconds, STSF380 379 ± 454 seconds, P < 0.001) significantly differed. The difference in the rate of first-pass isolation was not statistical different (P = .06) among the 12 operators that performed at least 15 procedures. CONCLUSIONS: An ablation protocol respecting strict criteria for contiguity and quality lesion results in high and comparable rate of acute PV isolation among operator performing ablation with different catheters, AI settings, procedure, and fluoroscopy times

Effectiveness of cardiac resynchronization therapy in heart failure patients with valvular heart disease: comparison with patients affected by ischaemic heart disease or dilated cardiomyopathy. The InSync/InSync ICD Italian Registry

AimsTo analyse the effectiveness of cardiac resynchronization therapy (CRT) in patients with valvular heart disease (a subset not specifically investigated in randomized controlled trials) in comparison with ischaemic heart disease or dilated cardiomyopathy patients.Methods and resultsPatients enrolled in a national registry were evaluated during a median follow-up of 16 months after CRT implant. Patients with valvular heart disease treated with CRT (n = 108) in comparison with ischaemic heart disease (n = 737) and dilated cardiomyopathy (n = 635) patients presented: (i) a higher prevalence of chronic atrial fibrillation, with atrioventricular node ablation performed in around half of the cases; (ii) a similar clinical and echocardiographic profile at baseline; (iii) a similar improvement of LVEF and a similar reduction in ventricular volumes at 6-12 months; (iv) a favourable clinical response at 12 months with an improvement of the clinical composite score similar to that occurring in patients with dilated cardiomyopathy and more pronounced than that observed in patients with ischaemic heart disease; (v) a long-term outcome, in term of freedom from death or heart transplantation, similar to patients affected by ischaemic heart disease and basically more severe than that of patients affected by dilated cardiomyopathy.ConclusionIn 'real world' clinical practice, CRT appears to be effective also in patients with valvular heart disease. However, in this group of patients the outcome after CRT does not precisely overlap any of the two other groups of patients, for which much more data are currently available

Monoclonal antibodies: the new magic bullets for allergy: IUPHAR Review 17

xiii, 135 h

Comparison of the usefulness of cardiac resynchronization therapy in three age-groups (<65, 65-74 and 6575 Years) (from the InSync/InSync ICD Italian Registry)

Chronic heart failure is one of the most important geriatric syndromes, associated with disability, increased hospital admissions, and high mortality. The aim of this study was to evaluate the existence of age-related differences in clinical effectiveness and outcomes of cardiac resynchronization therapy (CRT), alone or in combination with an implantable cardioverter-defibrillator (CRT-D), in a large, real-world registry. A total of 1,787 patients admitted for CRT or CRT-D to the 117 centers participating in the InSync/InSync ICD Italian Registry from 1999 to 2005 were evaluated. Patients were divided into 3 age groups: <65 years (n = 571), 65 to 74 years (n = 740), and 6575 years (n = 476). The left ventricular ejection fraction did not differ in the 3 groups (26 \ub1 8% vs 26 \ub1 7% vs 27 \ub1 8%, p = 0.123). Atrial fibrillation prevalence demonstrated an age-related increase. The use of recommended medical therapy for chronic heart failure decreased with age, as well as CRT-D implantation (p <0.001). The percentage of echocardiographic responders to CRT was similar in the 3 groups, and New York Heart Association class significantly improved independent of age. During the follow-up period (19 \ub1 13 months), all-cause mortality was higher in patients aged 6575 years than in those aged <65 years (p = 0.005). In the whole population, mortality was associated with the nonresponder condition, the presence of atrial fibrillation and the lack of prescription of recommended medical therapy. In conclusion, CRT improved left ventricular performance and functional capacity independent of age. The proportion of the responder condition to CRT was the same in all groups. Pharmacologic undertreatment is an important issue in a "real-world" geriatric populatio

Comparison of the usefulness of cardiac resynchronization therapy in three age-groups (&lt;65, 65-74 and &#8805;75 Years) (from the InSync/InSync ICD Italian Registry)

Chronic heart failure is one of the most important geriatric syndromes, associated with disability, increased hospital admissions, and high mortality. The aim of this study was to evaluate the existence of age-related differences in clinical effectiveness and outcomes of cardiac resynchronization therapy (CRT), alone or in combination with an implantable cardioverter-defibrillator (CRT-D), in a large, real-world registry. A total of 1,787 patients admitted for CRT or CRT-D to the 117 centers participating in the InSync/InSync ICD Italian Registry from 1999 to 2005 were evaluated. Patients were divided into 3 age groups: <65 years (n = 571), 65 to 74 years (n = 740), and 6575 years (n = 476). The left ventricular ejection fraction did not differ in the 3 groups (26 \ub1 8% vs 26 \ub1 7% vs 27 \ub1 8%, p = 0.123). Atrial fibrillation prevalence demonstrated an age-related increase. The use of recommended medical therapy for chronic heart failure decreased with age, as well as CRT-D implantation (p <0.001). The percentage of echocardiographic responders to CRT was similar in the 3 groups, and New York Heart Association class significantly improved independent of age. During the follow-up period (19 \ub1 13 months), all-cause mortality was higher in patients aged 6575 years than in those aged <65 years (p = 0.005). In the whole population, mortality was associated with the nonresponder condition, the presence of atrial fibrillation and the lack of prescription of recommended medical therapy. In conclusion, CRT improved left ventricular performance and functional capacity independent of age. The proportion of the responder condition to CRT was the same in all groups. Pharmacologic undertreatment is an important issue in a "real-world" geriatric populatio

GIS4RISKS: periodo di edificazione “verso” esiti di agibilità a L’Aquila (2009), ricostruendo le fasi dell’evoluzione urbanistica

Il terremoto del 6 aprile 2009, che ha colpito L’Aquila e altri 56 comuni facenti parte del ‚cratere sismico‛, ha causato notevoli modificazioni sociali e ha portato verso una situazione caratterizzata da precari equilibri, instauratisi in un contesto sconvolto nel suo assetto generale. Elevatissimi sono stati i danni registrati a livello urbanistico-insediativo e storico-culturale-artistico, con rovinose lacerazioni aperte nel patrimonio monumentale-religioso. Duri colpi sono stati inferti nel tessuto economico, arrestatosi come se si fosse verificato un improvviso ‚corto circuito‛, con immediate conseguenze sulle attività produttive e sulle connessioni tra le part