[Spontaneous craniocervical dissection].

Performance: Spontaneous dissections of the cerebral arteries are among the leading causes of stroke in young adults. They result from hemorrhage into the outer layers of the arterial wall, which can lead to stenosis or even complete vessel occlusion. Clinical presentations vary, ranging from localized pain to cerebral ischemic complications.

Bullying, Harassment, and Undermining Behaviour in Cardiothoracic Surgery in the United Kingdom and Ireland.

Background: Bullying, harassment, and undermining behaviour has a profound detrimental effect on the multi-professional team, patient safety, and clinical outcomes. Bullying creates a poor working and training environment , increasing stress, damaging confidence, and impairing wellbeing. We sought to characterize the prevalence and nature of bullying, harassment and undermining within cardiothoracic surgery in the United Kingdom and Republic of Ireland.

Cholinergic regulation of decision making under risk of punishment.

The ability to choose between options that differ in their risks and rewards depends on brain regions within the mesocorticolimbic circuit and regulation of their activity by neurotransmitter systems. Dopamine neurotransmission in particular plays a critical role in modulating such risk-taking behavior; however, the contribution of other major modulatory neurotransmitters, such as acetylcholine, is not as well-defined, especially for decision making in which the risk associated with more rewarding outcomes involves adverse consequences. Consequently, the goal of the current experiments was to examine how cholinergic signaling influences decision making involving risk of explicit punishment.

CLINICAL AND PATHOLOGIC PRESENTATIONS OF YERSINIOSIS IN VARIOUS NONDOMESTIC SPECIES: AN INVESTIGATION OF OUTBREAKS FROM FOUR NORTH AMERICAN ZOOLOGICAL INSTITUTIONS.

Yersiniosis due to can be associated with high morbidity and mortality in various species and has been a cosmopolitan management challenge in zoological institutions. This gram-negative, environmental bacterium thrives in cold, wet conditions and poses a risk to zoo species. Outbreaks can be costly and impact conservation efforts through loss of threatened and endangered species.

Renal transplant ultrasound: assessment of complications and advanced applications.

Renal transplantation is the most commonly performed solid organ transplant procedure. Monitoring renal transplants with ultrasound is a critical component in the management of transplant patients both in the immediate aftermath of surgery and longitudinally. Many complications are detectable via ultrasound evaluation with relative prevalence dependent on the time since surgery.