Publications by authors named "D Mah"

The number of children with cardiac implantable electronic devices (CIEDs) is increasing at a time of rapid growth in cardiac magnetic resonance (MR) and cardiac computed tomography (CT) utilization. The presence of CIEDs poses challenges with respect to imaging safety and quality. A thoughtful approach to cardiovascular imaging in patients with CIEDs begins with an awareness of the clinical indications to determine the most appropriate imaging modality.

View Article and Find Full Text PDF

Background: Advanced bilateral breast cancers with local and regional nodal involvement are rare and challenging to plan due to conflicting demands of conformality, uniformity and sparing of organs at risk such as heart and lungs. Pencil beam scanning (PBS) protons have been shown to provide improved organ at risk (OAR) sparing, conformality and homogeneity compared to photon techniques including three-dimensional conformal radiotherapy, intensity modulated radiation therapy (IMRT), volumetric arc therapy (VMAT), and tomotherapy. We performed a blinded comparison between VMAT and PBS plans and extend this comparison with a case study of a patient win expander during radiotherapy.

View Article and Find Full Text PDF
Article Synopsis
  • - The study examined the occurrence of thromboembolic complications in young patients (under 25) with atrial fibrillation (AFib) or atrial flutter (AFl) and analyzed how anticoagulation is practiced in this group across multiple medical centers from 2000 to 2019.
  • - Among 210 patients with 311 episodes of AFib/AFl, 12 episodes were linked to blood clots, predominantly in patients with structural heart disease, while only 34% were discharged on aspirin and 27% on anticoagulants.
  • - The findings indicate that while thromboembolic events can occur in this age group, they are generally rare after treatment like cardioversion, and the CH
View Article and Find Full Text PDF

Engagement with households to fully realize the potential of demand-side solutions has attracted policy attention. The potential of feedback has been understudied, especially regarding who engages more in electricity conservation. Furthermore, most studies have been limited to the Western context, with only a few that explore Asia.

View Article and Find Full Text PDF
Article Synopsis
  • Postoperative arrhythmias are typically temporary and treated with medication, but some patients need further procedures like electrophysiology study (EPS) and ablation.
  • This study reviewed cases from 2000-2021 to assess the effectiveness and safety of early EPS and ablation in congenital heart surgery patients, focusing on outcomes, complications, and long-term arrhythmia recurrence.
  • Of the nearly 29,000 surgeries, only 50 patients (some within 3 months and others from 3-12 months post-surgery) required EPS, showing an 82% success rate, though 54% experienced recurring arrhythmias, albeit with less severity.
View Article and Find Full Text PDF