Publications by authors named "P I Kalmar"

A fixed-point iteration technique is presented to handle the implicit nature of the governing equations of nonlinear surface mode oscillations of acoustically excited microbubbles. The model is adopted from the theoretical work of Shaw [1], where the dynamics of the mean bubble radius and the surface modes are bi-directionally coupled via nonlinear terms. The model comprises a set of second-order ordinary differential equations.

View Article and Find Full Text PDF

It was previously reported that diabetes mellitus (DM) and admission hyperglycemia (aHG) were associated with poor clinical outcomes in patients with acute ischemic stroke (AIS) who were treated with intravenous thrombolysis (IVT) or mechanical thrombectomy (MT). Our study aimed to assess the prognostic effect of DM and aHG (≥7.8 mmol/L) on clinical outcomes in patients treated with recanalization therapies (IVT and MT).

View Article and Find Full Text PDF

The early detection of large-vessel occlusion (LVO) strokes is increasingly important as these patients are potential candidates for endovascular therapy, the availability of which is limited. Prehospital LVO detection scales mainly contain symptom variables only; however, recent studies revealed that other types of variables could be useful as well. Our aim was to comprehensively assess the predictive ability of several clinical variables for LVO prediction and to develop an optimal combination of them using machine learning tools.

View Article and Find Full Text PDF
Article Synopsis
  • Acute ischemic strokes (AIS) occur in 15-20% of cases due to tandem occlusion, involving both intracranial and extracranial vessels, making the best endovascular treatment (EVT) approach unclear, particularly regarding the need for stenting the extracranial internal carotid artery (EICA).
  • The study retrospectively analyzed 101 AIS patients undergoing EVT across three stroke centers between 2017 and 2020, comparing two treatment methods: acute carotid stenting (ACS) and balloon angioplasty only (BAO), focusing on patient outcomes after 90 days.
  • Results indicated no significant outcome differences between the ACS and BAO groups, although those receiving ACS faced higher rates of symptomatic intracranial hemorr
View Article and Find Full Text PDF