Characteristics, predictors and outcomes of new-onset QT prolongation in sepsis: a multicenter retrospective study.

Background: Sepsis-induced myocardial injury is a serious complication of sepsis. QT prolongation is a proarrhythmic state which reflects myocardial injury in a group of heterogeneous disorders. However, the study on the clinical value of QT prolongation in sepsis is limited.

Orthodromic Reciprocating Tachycardia Relying on Aberrant Conduction: The Need for a Larger Circuit.

Aberrant conduction during orthodromic reciprocating tachycardia (ORT) prolongs the ventriculoatrial conduction time, which can be essential for the maintenance of tachycardia in specific cases. We searched for ORT relying on aberrancy among 220 cases in our center. Three patients showed the phenomenon of aberrancy-dependent ORT.

Acute epicardial pulmonary vein reconnection: Nondurable transmural lesion or late manifestation of conduction through intercaval bundle.

Introduction: Acute pulmonary vein reconnection (PVR) via epicardial fibers can be found during observation period after PV isolation, the characteristics and related factors have not been fully studied. We aimed to investigate the prevalence, locations, electrogram characteristics, and ablation parameters related to acute epicardial pulmonary vein reconnection (AEPVR).

Methods: Acute PVR was monitored during observation period after PV isolation.

Subclinical cardiac involvement present as electrocardiographic abnormalities in various neuromuscular diseases.

Background: Cardiac involvement is commonly present in various neuromuscular diseases which may develop life-threatening consequences. The early manifestation is often asymptomatic which however has been insufficiently studied.

Objectives: We aim to characterize electrocardiographic (ECG) changes in neuromuscular diseases without cardiac symptoms.

Anatomy-based characteristics of far-field SVC electrograms in right superior pulmonary veins after isolation.

. Far-field electrograms from superior vena cava (SVC) can be present in right superior pulmonary vein (RSPV) after pulmonary vein (PV) isolation. .

Split accessory pathway potentials in a patient with antidromic AVRT.

Introduction: Accessory pathway potential often indicates a highly effective ablation target in Wolff-Parkinson-White syndrome.

Methods: A 27-year-old female presenting with palpitation underwent an electrophysiology study, who had mild pre-excitation in surface ECG.

Results: An accessory pathway with weak anterograde conduction was found.

Pseudo normalization of H-V interval due to intra-His block in a patient with fasciculoventricular accessory pathway.

A 57-year-old male suffering from cardiogenic syncope was found to have preexcited QRS on surface ECG at admission. A dual-chamber ICD was implanted after discovering intermittent high degree A-V block and ventricular tachycardia during hospitalization. An EP study was performed 2 days later.

Increased serum interleukin-6 level as a predictive biomarker for atrial fibrillation: A systematic review and meta-analysis.

Background: Atrial fibrillation (AF) is related to a higher risk of thromboembolic events and mortality. Some studies have demonstrated that the inflammatory biomarker interleukin-6 (IL-6) is associated with a higher risk of higher thrombosis in AF patients, but the real effect of IL-6 remains a controversy.

Methods: We conducted a systematic review and meta-analysis to investigate the association between IL-6 and thromboembolic events, as well as bleeding events, acute coronary syndrome (ACS) events and all-cause mortality in AF.

Factors influencing cognitive function in patients with atrial fibrillation: a cross-sectional clinical study.

Background: The factors that influence cognitive function in patients with atrial fibrillation (AF) remain unclear.

Methods: This study involved an AF group and control group (normal sinus rhythm) of 150 patients each. Cognitive function was assessed with the adjusted Mini-Mental State Examination (MMSEadj) score and Memory and Executive Screening (MES) score.

Oral anticoagulant prescribing in elderly patients above and below age 80 with atrial fibrillation .

Background: Oral anticoagulation is efficient to prevent ischemic stroke in atrial fibrillation (AF), but in very old patients, physicians always remain cautious to use anticoagulants concerning the bleeding risk. This research aims to investigate the current situation of oral anticoagulation therapy in very old (≥ 80 years) AF patients.

Materials And Methods: We carried out a cross-sectional study in an urban area in China from 2014 to 2016.

Fasciculoventricular accessory pathway unmasked by a pseudo gap phenomenon.

A 28 year old female with manifest preexcitation underwent electrophysiology study for intermittent palpitation. During progressively premature atrial extrastimuli, bypass tract was blocked before relative refractory period of AV node, making it unfeasible to observe the change of H-V interval and QRS morphology during decremental nodal conduction. However, dual AV node physiology, presented as a marked increase of A-H interval, occurred when a short-coupled extrastimulus was delivered, followed by a preexcited QRS with an H-V interval identical to that in sinus rhythm.

Essential thrombocythemia presenting as acute coronary syndrome: case reports and literature review.

For the patients with essential thrombocythemia (ET), systemic thrombosis presents as one of the most dangerous complications. It's been widely accepted that acute coronary syndrome (ACS) is a kind of thrombotic diseases. However, there are very few case reports about ET first presenting as ACS.

Cardiac arrhythmias as the initial manifestation of adult primary Sjögren's syndrome: a case report and literature review.

Two middle-aged female patients presenting with heart palpitation and electrocardiogram revealed complex cardiac arrhythmias. A review of systems was positive for dry mouth and transient arthralgia, while laboratory and instrumental tests enabled us to make the diagnosis of primary Sjögren's syndrome (pSS). Cardiac electrophysiology revealed atrioventricular node dysfunction and impaired intraventricular conduction.