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991.
Day‐case device implantation—A prospective single‐center experience including patient satisfaction data 下载免费PDF全文
992.
Absence of late gadolinium enhancement on cardiac magnetic resonance imaging in ventricular fibrillation and nonischemic cardiomyopathy 下载免费PDF全文
Aleksandr Voskoboinik MBBS Michael C. G. Wong MBBS Jessica K. Elliott MBBS BMedSc Benedict T. Costello MBBS Sandeep Prabhu MBBS Justin A. Mariani MBBS PhD Jonathan M. Kalman MBBS PhD Peter M. Kistler MBBS PhD Andrew J. Taylor MBBS PhD Joseph B. Morton MBBS PhD 《Pacing and clinical electrophysiology : PACE》2018,41(9):1109-1115
Introduction
Cardiac magnetic resonance (CMR)‐identified late gadolinium enhancement (LGE), representing regional fibrosis, is often used to predict ventricular arrhythmia risk in nonischemic cardiomyopathy (NICM). However, LGE is more closely correlated with sustained monomorphic ventricular tachycardia (SMVT) than ventricular fibrillation (VF). We characterized CMR findings of ventricular LGE in VF survivors.Methods
We examined consecutively resuscitated VF survivors undergoing contrast‐enhanced 1.5T CMR between 9/2007 and 7/2016. We excluded coronary artery disease, hypertrophic cardiomyopathy, amyloid, sarcoid, arrhythmogenic right ventricular cardiomyopathy, and channelopathy. Preexisting implantable cardioverter‐defibrillator (ICD) was a CMR contraindication. VF patients were divided into three groups: (1) NICM, (2) left ventricular (LV) dilatation with normal LV ejection fraction (LVEF), and (3) normal LV size and LVEF. Two groups of NICM patients with and without SMVT were examined for comparison.Results
We analyzed 87 VF patients, and found that LGE was seen in 8/22 (36%) with NICM (LVEF 38 ± 11%, LV end‐diastolic volume index [LVEDVI] 134 ± 68 mL/BSA), 11/40 (28%) with LV dilatation and normal LVEF (LVEDVI 103 ± 17 mL/BSA), 4/25 (16%) with normal LV size and LVEF. Incidence of LGE in NICM patients without prior ventricular tachycardia/VF (LVEF 36 ± 12%, LVEDVI 141 ± 46 mL/body surface area [BSA]) was 117/277 and was not lower than those with VF and NICM (42% vs 36%; P = 0.59). By contrast, 22/37 NICM patients with SMVT (LVEF 42 ± 11%, LVEDVI 123 ± 48 mL/BSA) were LGE‐positive (59% NICM‐SMVT vs 36% NICM‐VF; P = 0.04).Conclusion
Most VF survivors with a diagnosis of NICM did not have LGE on CMR and would not have met primary prevention ICD criteria based on LVEF. Absence of LGE may not portend a benign prognosis in NICM. Novel strategies for determining SCD risk in this cohort are required.993.
994.
An interesting case of wide QRS tachycardia with right bundle branch block morphology: What is the mechanism? 下载免费PDF全文
995.
Narrow QRS tachycardia with apparent concentric atrial activation pattern: What is the mechanism? 下载免费PDF全文
996.
Oral anticoagulation and left atrial thrombi resolution in nonrheumatic atrial fibrillation or flutter: A systematic review and meta‐analysis 下载免费PDF全文
997.
998.
Kunal Pradip Verma MBBS David Adam MBBS FRACP 《Pacing and clinical electrophysiology : PACE》2018,41(10):1381-1383
A 62‐year‐old male presented to his treating cardiologist for routine interrogation of his implantable cardiac defibrillator on the background of severe ischemic cardiomyopathy and end‐stage kidney disease on hemodialysis. The device log revealed multiple paroxysms of atrial fibrillation; however, upon scrutinizing these episodes it was evident that they always corresponded to episodes of hemodialysis while dialyzing through a chronic dialysis catheter, but not while dialyzing via an arteriovenous fistula. We report the novel finding of inappropriate sensing of current leak from the catheter by a lead with a floating atrial dipole. 相似文献
999.
Case Report of the Safety Assessment of Transcranial Magnetic Stimulation Use in a Patient With Cardiac Pacemaker: To Pulse or Not to Pulse? 下载免费PDF全文
1000.
The effect of unit,depth, and probe load on the reliability of muscle shear wave elastography: Variables affecting reliability of SWE 下载免费PDF全文