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Träfflista för sökning "L773:1099 5129 OR L773:1532 2092 ;pers:(Edvardsson Nils 1942)"

Sökning: L773:1099 5129 OR L773:1532 2092 > Edvardsson Nils 1942

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1.
  • Björkenheim, Anna, 1980-, et al. (författare)
  • Predictors of hospitalization for heart failure and of all-cause mortality after atrioventricular nodal ablation and right ventricular pacing for atrial fibrillation
  • 2014
  • Ingår i: Europace. - : Oxford University Press. - 1099-5129 .- 1532-2092. ; 16:12, s. 1772-1778
  • Tidskriftsartikel (refereegranskat)abstract
    • Aims: Atrioventricular junction ablation (AVJA) is a highly effective treatment in patients with therapy refractory atrial fibrillation (AF) but renders the patient pacemaker dependent. We aimed to analyse the long-term incidence of hospitalization for heart failure (HF) and all-cause mortality in patients who underwent AVJA because of AF and to determine predictors for HF and mortality.Methods and results: We retrospectively enrolled 162 consecutive patients, mean age 67 +/- 9 years, 48% women, who underwent AVJA because of symptomatic AF refractory to pharmacological treatment (n = 117) or unsuccessful repeated pulmonary vein isolation (n = 45). Hospitalization for HF occurred in 32 (20%) patients and 35 (22%) patients died, representing a cumulative incidence for hospitalization for HF and mortality over the first 2 years after AVJA of 9.1 and 5.2%, respectively. Hospitalization for HF occurred to the same extent in patients who failed pharmacological treatment as in patients with repeated pulmonary vein isolation (PVI), although the mortality was slightly higher in the former group. QRS prolongation >= 120 ms and left atrial diameter were independent predictors of hospitalization for HF, while hypertension and previous HF were independent predictors of death.Conclusion: The long-term hospitalization rate for HF and all-cause mortality was low, which implies that long-term ventricular pacing was not harmful in this patient population, including patients with unsuccessful repeated PVI.
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2.
  • Camm, A J, et al. (författare)
  • Conventional and dedicated atrial overdrive pacing for the prevention of paroxysmal atrial fibrillation: the AFTherapy study.
  • 2007
  • Ingår i: Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology. - : Oxford University Press (OUP). - 1532-2092. ; 9:12, s. 1110-8
  • Tidskriftsartikel (refereegranskat)abstract
    • AIMS: This investigation was conducted to determine the effectiveness of several conventional overdrive pacing modalities (single rate and rate responsive pacing at various lower rates) and of four dedicated preventive pacing algorithms in the suppression of paroxysmal atrial fibrillation (AF). METHOD AND RESULTS: In this multi-centre, randomized trial, 372 patients with drug-refractory paroxysmal AF were enrolled. Patients received a dual-chamber pacing device capable of delivering conventional pacing therapy as well as dedicated AF prevention pacing therapies and to record detailed AF-related diagnostics. The primary endpoint was AF burden, whereas secondary endpoints were time to first AF episode and averaged sinus rhythm duration. During a conventional pacing phase, patients were randomized to single rate or rate-responsive pacing with lower rates of either 70 or 85 min(-1) or to a control group with single rate pacing at 40 min(-1). In the subsequent preventive pacing phase, patients underwent pacing at a lower rate of 70 min(-1) with or without concomitant application of four preventive pacing algorithms. A substantial amount of data was excluded from the analysis because of atrial-sensing artefacts, identified in the device-captured diagnostics. In the conventional pacing phase, no significant differences were found between various lower rates and the control group receiving single rate pacing at 40 min(-1) or between single rate and rate-responsive pacing. Patients receiving preventive pacing with all four therapies enabled had a similar AF burden compared with patients treated with conventional pacing at 70 min(-1) (P = 0.47). CONCLUSIONS: The results do not demonstrate a significant effect of conventional atrial overdrive pacing or preventive pacing therapies. However, the observations provided important information for further consideration with respect to the design and conduct of future studies on the effect of atrial pacing therapies for the reduction of AF.
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4.
  • Edvardsson, Nils, 1942, et al. (författare)
  • Costs of unstructured investigation of unexplained syncope: insights from a micro-costing analysis of the observational PICTURE registry.
  • 2015
  • Ingår i: Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology. - : Oxford University Press (OUP). - 1532-2092. ; 17:7, s. 1141-1148
  • Tidskriftsartikel (refereegranskat)abstract
    • The observational PICTURE (Place of Reveal In the Care pathway and Treatment of patients with Unexplained Recurrent Syncope) registry enrolled 570 patients with unexplained syncope, documented their care pathway and the various tests they underwent before the insertion of an implantable loop recorder (ILR). The aims were to describe the extent and cost of diagnostic tests performed before the implant.
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5.
  • Edvardsson, Nils, 1942, et al. (författare)
  • Use of an implantable loop recorder to increase the diagnostic yield in unexplained syncope: results from the PICTURE registry.
  • 2011
  • Ingår i: Europace. - : Oxford University Press (OUP). - 1532-2092 .- 1099-5129. ; 13:2, s. 262-269
  • Tidskriftsartikel (refereegranskat)abstract
    • Aims To collect information on the use of the Reveal implantable loop recorder (ILR) in the patient care pathway and to investigate its effectiveness in the diagnosis of unexplained recurrent syncope in everyday clinical practice. Methods and results Prospective, multicentre, observational study conducted in 2006-2009 in 10 European countries and Israel. Eligible patients had recurrent unexplained syncope or pre-syncope. Subjects received a Reveal Plus, DX or XT. Follow up was until the first recurrence of a syncopal event leading to a diagnosis or for ≥1 year. In the course of the study, patients were evaluated by an average of three different specialists for management of their syncope and underwent a median of 13 tests (range 9-20). Significant physical trauma had been experienced in association with a syncopal episode by 36% of patients. Average follow-up time after ILR implant was 10 ± 6 months. Follow-up visit data were available for 570 subjects. The percentages of patients with recurrence of syncope were 19, 26, and 36% after 3, 6, and 12 months, respectively. Of 218 events within the study, ILR-guided diagnosis was obtained in 170 cases (78%), of which 128 (75%) were cardiac. Conclusion A large number of diagnostic tests were undertaken in patients with unexplained syncope without providing conclusive data. In contrast, the ILR revealed or contributed to establishing the mechanism of syncope in the vast majority of patients. The findings support the recommendation in current guidelines that an ILR should be implanted early rather than late in the evaluation of unexplained syncope.
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6.
  • Johansson, B. I., et al. (författare)
  • ST segment elevation and chest pain during cryoablation of atrial flutter
  • 2007
  • Ingår i: Europace. - : Oxford University Press (OUP). - 1099-5129. ; 9:6, s. 407-10
  • Tidskriftsartikel (refereegranskat)abstract
    • A 61-year-old male was treated with cryoablation for typical atrial flutter. Cryoablation was performed percutaneously with an 8-mm tip catheter to achieve a bidirectional conduction block of the cavo-tricuspid isthmus. When freezing at the point where bidirectional isthmus block occurred, the patient experienced chest pain and ECG showed ST segment elevations corresponding to the right coronary artery. Cryoablation may be painless per se, but patients should be told to report chest discomfort and surface ECG must be followed carefully during ablation.
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7.
  • Johansson, Birgitta, 1960, et al. (författare)
  • Short-term sinus rhythm predicts long-term sinus rhythm and clinical improvement after intraoperative ablation of atrial fibrillation.
  • 2008
  • Ingår i: Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology. - : Oxford University Press (OUP). - 1532-2092. ; 10:5, s. 610-7
  • Tidskriftsartikel (refereegranskat)abstract
    • AIMS: Our aim was to compare the long-term effects on rhythm and quality of life (QoL) after left atrial epicardial radiofrequency (RF) ablation vs. no ablation in patients undergoing cardiac surgery. METHODS AND RESULTS: Thirty-nine patients with ECG documented atrial fibrillation (AF) scheduled for coronary artery bypass grafting (CABG) with or without concomitant valve surgery were consecutively elected for epicardial RF ablation. Thirty-nine age- and gender-matched patients scheduled for CABG with or without concomitant valve surgery only and with documented AF served as controls. The follow-up after ablation was 32 +/- 11 months. The percentage of patients in sinus rhythm (SR) at long-term follow-up was 62 vs. 33% (P = 0.03) after ablation and no ablation, respectively. SR at 3 months was highly predictive of that at 32 months (sensitivity 95%, positive predictive value 86%). Long-term SR was associated with better QoL, fewer symptoms, higher ejection fraction, and smaller left and right atria than AF. CONCLUSION: SR at 3 months was highly predictive of long-term SR that was associated with clinical improvement when compared with patients still in AF. AF at 3 months did not preclude a later stabilization to SR.
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8.
  • Rónaszéki, Aladár, et al. (författare)
  • Pharmacological cardioversion of atrial fibrillation--a double-blind, randomized, placebo-controlled, multicentre, dose-escalation study of AZD1305 given intravenously.
  • 2011
  • Ingår i: Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology. - : Oxford University Press (OUP). - 1532-2092.
  • Tidskriftsartikel (refereegranskat)abstract
    • Aim AZD1305 is a combined ion channel blocker developed for the treatment of atrial fibrillation (AF). The aim of this study was to determine whether AZD1305 was effective in converting AF to sinus rhythm (SR). Methods and results Patients with AF episodes of duration 3 h to 3 months were randomized in a 3:1 ratio to receive a maximum 30 min intravenous infusion of AZD1305 or matching placebo. The primary efficacy endpoint was the proportion of patients converting within 90 min of the start of infusion, after which patients who had not converted were to undergo direct current (DC) cardioversion. Four ascending AZD1305 dose groups were assigned sequentially, with dose rates of 50, 100, 130, and 180 mg/h. A total of 171 patients were randomized. Pharmacological conversion was achieved in 0 of 43 patients (0%) in the placebo group, and in 2 of 26 (8%; P= 0.14 vs. placebo), 8 of 45 (18%; P= 0.006), 17 of 45 (38%; P< 0.001), and 6 of 12 patients (50%; P< 0.001) in AZD1305 dose groups 1-4, respectively. Maximum QTcF (QT interval corrected according to Fridericia's formula) generally increased dose-dependently up to a plateau, although there was wide variation between patients. Two patients experienced torsade de pointes (TdP): one patient without symptoms in dose group 3, and one patient requiring DC defibrillation in dose group 4. Both patients recovered without sequelae. Conclusions AZD1305 was effective in converting AF to SR, but was associated with QT prolongation and TdP. The benefit-risk profile was judged as unfavourable and the AZD1305 development programme was discontinued. Clinical trial registration: http://clinicaltrials.gov identifier NCT00915356.
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9.
  • Carlson, Tobias, 1976, et al. (författare)
  • Interference of transcutaneous electrical nerve stimulation with permanent ventricular stimulation: a new clinical problem?
  • 2009
  • Ingår i: Europace. - 1532-2092. ; 11:3, s. 364-9
  • Tidskriftsartikel (refereegranskat)abstract
    • AIMS: To assess the compatibility of thoracic TENS and permanent PM treatment and to identify any signs of interference of TENS with the PM function. METHODS AND RESULTS: Twenty-seven patients treated with PM were tested. Transcutaneous electric nerve stimulation electrodes were placed above each mamilla, and the stimulation intensity was increased to the maximum level tolerated for 30 s or until electrocardiogram revealed signs of interference. Transcutaneous electric nerve stimulation of 2 and 80 Hz was tested with the PM ventricular sensing level set to the clinically chosen level as well as to maximal sensitivity. Interference was detected in 22 of 27 patients (81%). Low-frequency (2 Hz) stimulation was more associated with PM interference (52% at normal vs. 81% at maximal ventricular sensitivity) than high-frequency (80 Hz) stimulation (33% at normal vs. 63% at maximal ventricular sensitivity); although the differences were not statistically significant. CONCLUSION: Transcutaneous electric nerve stimulation frequently induces inhibition of the PM function already at the clinically set ventricular sensitivity. Therefore, individual testing is warranted before TENS treatment is considered in patients with a PM. A test protocol for TENS and PM interaction is proposed.
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