Increased prevalence of temporary cardiac pacing in people with epilepsy.

Introduction: Even though ictal tachyarrhythmias are more common, ictal brady-asystole is more likely to be fatal, and yet is potentially preventable with pacemaker (PM) implantation. We sought to quantify the degree of association of PM placement in people with and without epilepsy, including neurological and cardiovascular cohorts.

Methods: Retrospective cross-sectional analysis of the National Hospital Discharge database using International Classification of Diseases Clinical Modification (ICD-9-CM) codes.

The mathematical relationship between height and nerve conduction velocity.

Many studies have shown an inverse relationship between axon length (or height) and nerve conduction velocity. A linear relationship was assumed, but there is no physiologic indication the relationship is linear. Furthermore, a linear relationship between height and velocity leads to implausibly low velocities for very long nerves.

A physiologic explanation for distal nerve slowing.

Numerous studies have shown that peripheral nerves conduct slower distally than proximally. This slowing is gradual at first, and more pronounced approaching the distal end of the nerve. At first glance, distal slowing appears not to make physiologic sense, as it slows reaction time and coordination compared with a hypothetical nerve that does not slow distally.

A sensitive new median-ulnar technique for diagnosing mild Carpal Tunnel Syndrome.

Carpal Tunnel Syndrome (CTS) is easily the most common focal peripheral nerve compression. The primary diagnostic tool is electrodiagnosis, although 13-27% of patients with symptoms and signs of CTS have normal electrodiagnostic results. The goal of this study was to create a more sensitive and specific latency difference criteria without any additional testing beyond the minimum.