The optimal annual case volume for acute type A aortic dissection surgery in relation to long-term outcomes.

Objectives: Previous analyses of the volume-outcome relationship have focused on short-term outcomes such as early mortality. The current study aims to update a novel statistical methodology, facilitating the evaluation of the relation between procedural volume and time-to-event outcomes such as long-term survival, using surgery for acute type A aortic dissection as an illustrative example.

Methods: This study employed an existing dataset of type A dissection outcomes, retrieved from literature.

Investigating effects of thermokarst lakes on permafrost under equilibrium conditions.

The degradation of permafrost due to climate change has significant effects on the hydrological processes and ecosystems in arctic and subarctic regions. Thermokarst lakes, formed from permafrost thaw and subsidence, play a crucial role in this process by influencing heat storage and exchange and accelerating the thaw rate of the surrounding permafrost. A direct effect of these lakes is the formation of taliks, perennially thawed soil.

Sex difference in outcomes after coronary artery bypass grafting: follow-up data of the Netherlands Heart Registration.

Objectives: Controversies exist regarding sex differences in outcomes after coronary artery bypass grafting (CABG). This study assessed sex differences in early and mid-term outcomes after CABG and factors associated with these differences. Outcomes were based on data from the Netherlands Heart Registration (NHR).

One-year postprocedural quality of life following mitral valve surgery: data from The Netherlands heart registration.

Objectives: The aim of surgical treatment of mitral valve disease is to reverse heart failure and to restore life expectancy and quality of life (QoL). In mitral valve surgery, QoL has not been studied extensively, especially regarding the surgical approach. The current study aimed to evaluate QoL after mitral valve surgery through full sternotomy and a minimally invasive approach (MIMVS).