A 57-year-old patient presents with a large mass at the right groin two months after cryoballoon-guided pulmonary vein isolation (PVI) (Fig. 1, left panel). A pseudo-aneurysm of the superficial femoral artery is seen on CT with a small, encapsulated active bleeding region (asterisk) surrounded by a large haematoma (arrow, Fig. 1, right panel). The pseudo-aneurysm of our patient was clinically m...

A 50-year-old man with paroxysmal atrial fibrillation underwent pulmonary vein isolation (PVI) using a cryoballoon. During the PVI procedure, a circular diagnostic catheter (CDC) was wedged deeply into the right PV (RPV). The lung tissues seemed to be tightening around the CDC. After various attempts to resolve the situation, the shaft of the CDC was completely torn, and the circular part remai...

A. Kirton, MD, MSc, FRCPC X. Wei, MD Parents of a healthy child with an unremarkable perinatal history noted a right-hand preference at 4 months and left hemiparesis by 6 months. MRI was not completed until 27 months (figure), confirming periventricular venous infarction (PVI). Stroke causes most term-born hemiplegic cerebral palsy (CP). Many are arterial ischemic strokes but PVI has emerged as...

BACKGROUND Access site hematomas and pseudoaneurysms are the most frequent complications of peripheral vascular intervention (PVI); however, their incidence and risk factors remain unclear. METHODS AND RESULTS We retrospectively analyzed data from the multicenter Vascular Quality Initiative on 22 226 patients who underwent 27 048 PVI from August 2007 to May 2013. Primary end points included i...

BACKGROUND Radiofrequency current ablation of atrial fibrillation (AF) requires high technical skills to achieve optimal catheter stability and is associated with an individually high x-ray exposure to both the patient and the operator. To facilitate catheter navigation and to reduce the operator's x-ray burden, remote navigation (RN) systems have been developed. Considerations for navigation o...

AIMS Additional ablation in the pulmonary vein (PV) carina region is sometimes required to achieve electrical isolation following circumferential pulmonary vein isolation (PVI). This study investigated the procedural predictors for the requirement of additional carina ablation to achieve complete electrical isolation with PVI. METHODS AND RESULTS Eighty patients with drug-refractory paroxysma...

OBJECTIVES We sought to evaluate whether porcine pulmonary vein (PV) isolation (PVI) can be produced by ablation using our novel radiofrequency (RF) thermal balloon catheter (RBC). BACKGROUND It has been proposed that PVI can prevent focal atrial fibrillation (AF) originating in or close to the PV. METHODS The RBC is composed of a 12F main shaft, a 4F inner tube and a balloon. Inside the ba...

The measurement of effort and performance validity is essential for computerized testing where less direct supervision is needed. The clinical validation of an Automated Neuropsychological Metrics-Performance Validity Index (ANAM-PVI) was examined by converting ANAM test scores into a common metric based on their relative infrequency in an outpatient clinic sample with presumed good effort. Opt...

AIM The perfusion index (PI) and its dynamic change during respiration, and supressed the plethysmographic variability index (PVI), are calculated from pulse oximetry, and these indexes were recently proposed for continuous and noninvasive assessment of peripheral perfusion in neonates. We aimed to assess the effect of patent ductus arteriosus (PDA) on PI and PVI, according to ductal Doppler fl...

BACKGROUND Recurrence of atrial fibrillation (AF) after successful pulmonary vein isolation (PVI) occurs mainly due to the reconnection of the once isolated PV. Although provocation and elimination of the early pulmonary vein reconnection (EPVR) soon after PVI has been widely performed to improve the outcome, AF recurrence due to subsequent PV reconnections still occurs. In this study, we repea...