Adenosine is known to cause atrioventricular block by slowing conduction through the atrioventricular node, thereby lengthening the atria to His (A-H) interval. To test the hypothesis that the increase in atrioventricular conduction delay produced by adenosine is mediated at an extracellular site, the efficacy of nucleoside transport inhibitors in preventing cellular adenosine uptake was correl...

In the Lewis rat, acute experimental autoimmune encephalomyelitis (EAE) induced by inoculation with myelin basic protein (MBP) and adjuvants is characterized by tail and hindlimb weakness that resolves spontaneously after several days. In rats with neurological signs of this form of EAE (MBP-EAE) we have previously demonstrated demyelination and nerve conduction block in the proximal peripheral...

Wenckebach periods of alternate beats (AW) can be described as a 2:1 atrioventricular (A-V) block in which the conducted P waves show progressive prolongation of the P-R interval of the Wenckebach type. However, while classical Wenckebach periods terminate with a single blocked P wave, AW necessarily ends with (or begins from) two consecutive blocked P waves. Five clinical cases and several exp...

Adenosine is known to cause atrioventricular block by slowing conduction through the atrioventricular node, thereby lengthening the atria to His (A-H) interval. To test the hypothesis that the increase in atrioventricular conduction delay produced by adenosine is mediated at an extracellular site, the efficacy of nucleoside transport inhibitors in preventing cellular adenosine uptake was correl...

Background/introduction MR-guided HIFU is an effective treatment for metastatic bone pain through periosteal nerve ablation,[1] and is being investigated for treating back pain through facet joint denervation.[2] For peripheral neuropathy, ultrasound-guided HIFU has been investigated preclinically as a means of achieving either an irreversible conduction block to treat severe spasticity [3], or...

To enhance the accuracy for determining the precise localization, the findings of the compound nerve action potentials (CNAPs) of the common peroneal nerve (CPN) were investigated in patients with common peroneal mononeuropathy (CPM) in the knee, and the sural sensory nerve action potentials (SNAPs) were also analyzed. Twenty-five patients with CPM in the knee were retrospectively reviewed. The...

background: greater occipital never block has been shown to be an effective treatment in patients with cluster or tension type headache but there are very few studies investigating its effect in patients with chronic migraine. this study was to determine the effectiveness of greater occipital never block on headache in patients with chronic migraine. we designed an interventional before-after s...

background in spite of common usage of the inferior alveolar nerve block (ianb), this method has some well-defined restrictions. objectives the purpose of the present study was to compare these two techniques for the surgical removal of impacted lower third molars. patients and methods a total of 44 similarly impacted lower third molars (22 patients with two similar teeth) were selected. in eac...

Wenckebach periods of alternate beats (AW) can be described as a 2:1 atrioventricular (A-V) block in which the conducted P waves show progressive prolongation of the P-R interval of the Wenckebach type. However, while classical Wenckebach periods terminate with a single blocked P wave, AW necessarily ends with (or begins from) two consecutive blocked P waves. Five clinical cases and several exp...