Machine learning-accelerated computational fluid dynamics.

Numerical simulation of fluids plays an essential role in modeling many physical phenomena, such as weather, climate, aerodynamics, and plasma physics. Fluids are well described by the Navier-Stokes equations, but solving these equations at scale remains daunting, limited by the computational cost of resolving the smallest spatiotemporal features. This leads to unfavorable trade-offs between accuracy and tractability.

Percutaneous treatment of a massive saphenous vein graft aneurysm.

Saphenous vein graft (SVG) aneurysms are a rare, frequently late presenting, potentially fatal complication of coronary artery bypass graft (CABG) surgery. They are often discovered incidentally during radiological tasks such as chest x-ray or CT but can present clinically with symptoms such as worsening angina and breathlessness as well as complications such as rupture or myocardial infarction. Given the risks if left untreated, consideration should be given to treatment either through percutaneous routes or open surgery.

Local provision of percutaneous coronary intervention increases stenting rates and reduces length of hospital stay in remote regional centre.

Introduction: An early invasive strategy with follow-on percutaneous coronary intervention (PCI) is recommended in the management of high risk acute coronary syndromes (ACS). This article aimed to assess the impact of a new PCI service in a remote population.

Method: The study compared patient treatment pre- and post-introduction of the PCI service in a remote regional centre.

Arterial trauma during ultrasound-guided axillary vein puncture for endocardial lead placement.

The axillary vein is an accepted route for gaining central venous access, particularly for pacing and implantable cardioverter defibrillator leads, with ultrasound guidance a useful way of facilitating venous puncture. We report a series of cases demonstrating the important complication of inadvertent arterial injury with this technique.

Matrix metalloproteinase-1 promoter polymorphisms and changes in left ventricular volume following acute myocardial infarction.

The relation between matrix metalloproteinase-1 promoter genotype and remodeling was studied in 42 patients after their first acute myocardial infarctions. Patients possessing 2 GG alleles were at increased risk for remodeling compared with homozygotes for the G allele and heterozygotes possessing 1 G and 1 GG allele.