BACKGROUND Avascular necrosis (AVN) is a significant and potentially devastating complication following the treatment of developmental dysplasia of the hip (DDH). The reported rate of AVN following closed reduction for DDH ranges from 4 to 60%, and the resultant influence on hip development remains unclear. PURPOSE A systematic review of the literature was undertaken to evaluate the frequency...

This study examined the ultrastructural distribution of agranular vesicle-containing nerve (AVN) and granular vesicle-containing nerve (GVN) in cat cerebral blood vessels fixed in KMnO4. The percentages of the AVN and GVN throughout the adventitial layer in the basilar, middle cerebral, and anterior cerebral arteries were 63.4 and 36.7, 53.9 and 46.1, and 60.2 and 39.8, respectively. The AVN in...

Introduction: Avascular necrosis (AVN) of the femoral head is a leading cause of end-stage joint disease in the young population that can conduct patients to total hip replacement in early life. There are various risk factors including, trauma, corticosteroids, thrombosis, hypertension, and alcohol. There is a growing number of femoral head AVN patients with a history of self-medication with he...

Alendronate in the treatment of avascular necrosis of the hip SIR, Avascular necrosis (AVN) of the bone results from decreased blood supply to the bone, resulting in bone death. The most common site is the head of the femur. AVN is characterized by persistent, often nagging and disabling pain associated with significant reduction in joint movement and mobility. The condition tends to run a prog...

Abstract Background The efficacy and safety of high-power, short-duration (HPSD) radiofrequency catheter ablation for atrial fibrillation (AF) have been demonstrated in several studies. We aimed to evaluate compare the effects conventional method HPSD AF on sinus AV node function patients with paroxysmal AF. Methods medical records who underwent pulmonary vein isolation (PVI) were retrieved fro...

background: ventriculoatrial (va) conduction has an important role in the initiation and maintenance of some arrhythmias. the aim of this study was to evaluate whether clinical and electrophysiological parameters of atrioventricular (av) conduction can predict va conduction. methods: detailed demographic, electrocardiographic, and echocardiographic data were recorded in 54 consecutive patients ...

Osteochondritis dissecans is a condition affecting a joint in which a variably sized wedge of subchondral bone and its overlying cartilage dies and becomes detached from the articular surface. Although it occurs most often in the knee joint of young male athletes, other reported sites of involvement include the patella, the capitellum, the talar dome, and the femoral head.I In contrast, the occ...

This study examined the atrioventricular conducting system in 4 adult male hedgehogs (Hemiechinus auritus). The histological structure of these components was studied using routine histological methods. The AVN was located at the lower and anterior part of the interatrial septum, near the root of the aorta. It was almost oval and consisted of twisted cells. Internodal pathways in the hedgehog h...

Abstract Purpose The exposition of cardiac conduction system during breast radiation therapy has never been studied, despite the increasing use intensity-modulated therapy, which exposes larger volume to low-dose bath. We evaluated node exposure irradiation with volumetric modulated arc and estimated potential dosimetric benefit proton therapy. Materials Methods Atrioventricular (AVN) sinoatria...