Techniques of core decompression in the treatment of idiopathic avascular necrosis of the femoral head.

Core decompression was developed as a joint-preserving procedure for patients with early-stage osteonecrosis of the femoral head. Previous studies indicated a high success rate that outperforms nonoperative management of pre-collapse hips. The traditional single-tunnel core decompression technique uses a cannulated drill bit inserted into the lateral cortex of the proximal femur.

Acute myocardial infarction presenting as headache: a case report.

Background: The diagnosis of acute myocardial infarction is straightforward when it presents with typical symptoms. However, some patients can be asymptomatic, and some can present with atypical symptoms.

Case Presentation: We present a very rare case of acute myocardial infraction that presented with headache and right upper limb numbness of 2-day duration in a 61-year-old female Middle Eastern patient.

Pre-hospital blood pressure lowering in presumed hyperacute stroke: A systematic review and meta-analysis of randomized controlled trials.

Background: High blood pressure (BP) is common in acute stroke and a predictor of poor outcomes. Treatment of acute stroke, before a distinction can be made between ischemic and hemorrhagic types, is challenging. We aimed to assess whether patients with presumed acute stroke benefit from pre-hospital BP lowering.

Transmission and Reflection Properties of Iron Pyrite-Epoxy Resin Composite for Electromagnetic Applications.

This study examines the electromagnetic properties of a composite material composed of iron pyrite (FeS) and epoxy resin, mixed in a 3:2 weight ratio to create a 10 cm cube. The research analyzes transmission and reflection coefficients and band gap parameters to determine its viability as an antenna substrate for electromagnetic wave applications. The composite displays a tunable band gap of 1.

Ischemic heart disease awareness in Egypt's aging population: findings from a national cross-sectional study.

Background: Ischemic heart disease (IHD) remains a leading cause of mortality among the elderly population, particularly in low- and middle-income countries like Egypt, where public health infrastructure may struggle to meet the needs of a growing aging population. Awareness of the risk factors and warning signs associated with IHD is critical for early detection and intervention. This study aimed to evaluate the level of awareness and knowledge regarding IHD risk factors and warning signs among elderly individuals in Egypt, focusing on differences between urban and rural populations.