Wavelet and principal component analysis of electromyographic activity and slow component of oxygen uptake during heavy and severe cycling exercise.

The aim of the study was to investigate whether the slow component of oxygen uptake was concurrent with the recruitment of large α-motoneuron muscle fibres by using wavelet and principal component analysis (PCA) of electromyography (EMG) during heavy and severe cycling exercise. Eleven male subjects participated in the study. After establishing each subject's maximum value of oxygen uptake through an incremental test on the cycle ergometer, the subjects performed 6-min cycling tests at heavy and severe intensity.

Review of the genus Prays Hübner, 1825 (Lepidoptera: Praydidae) from China, with descriptions of twelve new species.

The genus Prays Hübner, 1825 from China is reviewed. Nineteen species are treated, including twelve species described as new: P. orthacantha sp.

A New Formula for Estimating the True QT Interval in Left Bundle Branch Block.

Introduction: QT prolongation is an independent risk factor for cardiac mortality. Left bundle branch block (LBBB) is more common in patients as they age. Widening of the QRS in LBBB causes false QT prolongation and thus makes true QT assessment difficult.

Review of the genus Anthonympha Moriuti, 1971 (Lepidoptera: Plutellidae) from China, with descriptions of four new species.

Chinese species of Anthonmypha Moriuti are reviewd. Five species are recognized, four of which are described as new: Anthonympha truncata sp. nov.

Taxonomic study of the genus Lycophantis Meyrick from China (Lepidoptera: Yponomeutidae) with descriptions of three new species.

Six Chinese species of the genus Lycophantis Meyrick, 1914 are reviewed, including three new species: Lycophantis mucronata Li, sp. nov. from Zhejiang and Hubei, L.

Denervation as a common mechanism underlying different pulmonary vein isolation strategies for paroxysmal atrial fibrillation: evidenced by heart rate variability after ablation.

Backgrounds: Segmental and circumferential pulmonary vein isolations (SPVI and CPVI) have been demonstrated to be effective therapies for paroxysmal atrial fibrillation (PAF). PVI is well established as the endpoint of different ablation techniques, whereas it may not completely account for the long-term success.

Methods: 181 drug-refractory symptomatic PAF patients were referred for segmental or circumferential PVI (SPVI = 67; CPVI = 114).

[Long term outcome of atrial fibrillation patients with KCNA5 and NPPA mutations post circumferential pulmonary vein ablation].

Objective: The outcome of atrial fibrillation patients with genetic mutations post ablation was not well evaluated.

Methods And Results: Three atrial fibrillation patients with evidence of mutations in KCNA5 and NPPA post successful circumferential pulmonary vein ablation were included. Mutation in KCNA5 was found in one male patient with paroxysmal atrial fibrillation.

Effect of epicardial fat pad ablation on acute atrial electrical remodeling and inducibility of atrial fibrillation.

Background: Atrial electrical remodeling (AER) is the underlying mechanism of atrial fibrillation (AF). The present study investigated the impact of epicardial fat pad (FP) ablation on acute AER (AAER) and inducibility of AF.

Methods And Results: AAER was performed in 28 mongrel dogs through 4-h rapid atrial pacing (RAP).

[Chronic outcome of patients with paroxysmal atrial fibrillation post catheter ablation].

Objective: High short-term successful rate was reported for catheter ablation in patients with paroxysmal atrial fibrillation (AF), we analyzed the long-term outcome (success rate, anticoagulation therapy and embolism event, anti-arrhythmic therapy and death post procedure) of catheter ablation for paroxysmal AF in this study.

Methods: From January 2000 to December 2004, 106 consecutive patients with drug-refractory paroxysmal AF underwent catheter ablation and were followed-up for (60.7 + or - 11.