Transvascular Balloon Occlusion: A Novel Bailout Strategy in Large Left Main Perforations.

Several complications have been reported in rotational atherectomy, and these complications are closely associated with cardiac tamponade, emergent surgery, and death. Here we describe a case of left main coronary artery, bullet-like perforation treated with a novel approach-transvascular balloon occlusion. (Level of Difficulty: Advanced.).

Cardiogenic Shock Clinical Presentation, Management, and In-Hospital Outcomes in Patients Admitted to the Acute Cardiac Care Unit of a Tertiary Hospital: Does Gender Play a Role?

Cardiogenic shock (CS), as the most severe form of heart failure, is associated with very high mortality rates despite therapeutic advances in the last decades. Gender differences in outcomes have been widely reported regarding several cardiovascular diseases. The aim of our study was to evaluate potential gender disparities in clinical presentation, management, and in-hospital outcomes of all (n = 138) patients admitted to the Acute Cardiac Care Unit of a tertiary hospital from 2013 to 2019. Information on demographic characteristics, past medical history, haemodynamic and clinical status at admission, therapeutic management, and in-hospital outcomes was retrospectively collected. Women represented 31.88% of the cohort, were significantly older than the men and had a lower proportion of smokers, chronic obstructive pulmonary disease, and previous acute myocardial infarction (AMI). Most CSs in both groups were AMI-related. Left ventricular ejection fraction at admission was higher in women, who were less likely to receive vasopressors. No differences were observed regarding mechanical circulatory support use and in-patient outcomes, with age being the only factor associated with in-hospital mortality on multivariate analysis.

Which is the function of a martin-gruber connection?

Clinical and diagnostic variations may occur due to the variable presence of a connection between the median and ulnar nerves in the forearm (Martin-Gruber anastomosis). This incidence has a wide range at 7%-40%. Most commonly, the connection between the nerves is considered to be composed of motor fibers; although, a sensory role has also been described. It is important to note that the number of axons, or the nature of the fibers in this connection, have not yet been elucidated. Fifty upper limbs were examined evaluating morphometric characteristics of the Martin Gruber connection, dissected out, sectioned, and immunohistochemically stained for choline acetyltransferase (ChAT) and analyzed with ImageJ© . The connection was observed in 32% of all cases (16/50). The nerve connections were identified as those in Pattern 1 group (12%-type 1b, 19%-type 1a, and 69%-type 1c) and contained motor (ChAT positive) fibers (40.42 ± 10.5% per connection) with three to four fascicles in each. No statistically significant differences were found according to sex, side, or laterality. There were statistically significant differences in the percentages of ChAT positive fibers; however, this was dependent on the distribution being greater in those not distributed zonally. The presence of this connection is prevalent in almost a third of the cadavers dissected; the understanding of this complex composition in sensory and motor fibers allows for the optimization of diagnosis and treatment of certain median-ulnar nerve injuries. Clin. Anat. 32:501-508, 2019. © 2019 Wiley Periodicals, Inc.