Peripheral nerve changes assessed by conduction velocity distribution in patients with primary Raynaud's phenomenon and dysautonomia.

Aim: Different mechanisms (neural and intravascular) are thought to be important in the pathogenesis of Raynaud's phenomenon (RP). In a previous study we confirmed autonomic nervous system impairment in patients with primary RP, but the pathogenic role of peripheral nerves remained unclear. The aim of the current study was an electrophysiological analysis of peripheral nerves using both standard conduction velocity and the conduction velocity distribution (CVD) in patients with primary RP in order to investigate the causes of dysautonomia.

Peripheral nerve tumours in own material.

Peripheral nerve tumours are rather rare soft tissue tumours. In the present article, results of surgical treatment of the peripheral nerve tumours have been presented. Clinical material consisted of 34 patients (16 females aged 19-55 years and 18 males aged 17- 75 years).

A method of esophageal electrogram recording for diagnostic atrial and ventricular pacing.

This study evaluates improvement of the electrogram sensed via an esophageal catheter with the sensing electrode adjacent to the stimulating electrode with and without a specialized artifact suppression system. In 100 patients (65 men and 35 women) aged 16-60 years (mean 48 years), esophageal recordings of left atrial activity were obtained during simultaneous transesophageal atrial pacing. Transesophageal ventricular pacing was performed in an additional 34 patients.