Hemodynamic deterioration because of worsening of mitral regurgitation can occur in a small number of patients undergoing atrioventricular node (AVN) ablation and pacing therapy. Patients with moderate mitral regurgitation before ablation seem prone to this complication. Successful permanent His-bundle pacing after AVN ablation was performed in a patient with chronic atrial fibrillation and mod...

Avascular osteonecrosis (AVN) of the femoral head is one of the most common skeletal complications of kidney transplantation [1,2]. Factors governing its prevalence, risk factors and therapy remain controversial, even four decades after the initial description. It is generally accepted that corticosteroids play a crucial role in the pathogenesis. Prevalence of this complication decreased follow...

As the first diagnostic imaging modality of avascular necrosis femoral head (AVNFH), accurately staging AVNFH from a plain radiograph is critical yet challenging for orthopedists. Thus, we propose deep learning-based diagnosis system (AVN-net). The proposed AVN-net reads radiographs pelvis, conducts diagnosis, and visualizes results automatically. Deep convolutional neural networks are trained ...

Background: Avascular necrosis (AVN), better considered proximal femoral growth disturbance (PFGD), following treatment for developmental dysplasia of the hip (DDH) remains poorly defined. In addition to limited reliability, it has been our experience that some radiographic features attributed AVN/PFGD may be present prior surgery. Our purpose was determine baseline prevalence suggestive PFGD i...

OBJECTIVE: One of the most controversial issues in pediatric orthopedics is Developmental dysplasia hip (DDH). The timing diagnosis and treatment are main goal to treat this condition successfully. Neglected cases that may remain undiagnosed until advancing age still seen especially developing countries. Delayed with leads more extensive surgery cause low satisfactory rates. aim study evaluate ...

Avascular necrosis (AVN) of femoral head needs to be addressed early in the course of the disease, to prevent progression to osteoarthritis. A revascularizing procedure which can help preserve the head should be considered in young adults to alleviate the need for total hip arthroplasty. We included 40 cases (53 hips) of AVN of femoral head operated with Sartorius muscle pedicle iliac bone graf...

The treatment of developmental dysplasia of the hip (DDH) in children remains controversial. We describe the clinical and radiological outcomes of  47 hips in 43 children treated with open surgery by one surgeon between 2004 and 2008 for DDH. The mean age at operation was 25 months (5 to 113) with a mean follow up of  89 months  (22 to 169). At the latest follow up 40 of the 45 hips where Sever...

PURPOSE Treatment is easier and complications are less likely to occur if developmental dysplasia of the hip (DDH) is diagnosed early. In this study, we examined the early results of open reduction using a medial approach which we had modified for DDH and analyzed the success of this technique and the associated complication rates, with a focus on avascular necrosis (AVN). METHODS This is an ...

BACKGROUND In clinical research of rare diseases, where small patient numbers and disease heterogeneity limit study design options, registries are a valuable resource for demographic and outcome information. However, in contrast to prospective, randomized clinical trials, the observational design of registries is prone to introduce selection bias and negatively impact the validity of data analy...

BACKGROUND AND PURPOSE Avascular necrosis (AVN) is a major cause of disability after treatment of developmental dysplasia of the hip (DDH), leading to femoral head deformity, acetabular dysplasia, and osteoarthritis in adult life. Type-II AVN is characterized by retarded growth in the lateral aspect of the physis or by premature lateral fusion, which produces a valgus deformity of the head on t...