Electrosurgery: heating, sparking and electrical arcs.

The translation of impedance (R), current (I), and voltage (V) into tissue effects and the understanding of the settings of electrosurgical units is not obvious if judged by the many questions during live surgery. Below 200 V, the current heats the tissue until the steam of boiling stops the current. Thus, slower heating, because of less energy or a larger contact area, results in deeper coagulation.

Isthmoceles - Accuracy of imaging diagnosis and clinical correlation with histology: A prospective cohort study.

Background: Isthmoceles are a growing clinical concern.

Objectives: To evaluate the accuracy of diagnosis of isthmoceles by imaging and to correlate the dimensions with clinical symptoms and histopathology.

Materials And Methods: Prospective study of women (n=60) with ≥1 C-section undergoing hysterectomy.

The Ross Procedure: Imaging, Outcomes and Future Directions in Aortic Valve Replacement.

The Ross procedure is gaining recognition as a significant option for aortic valve replacement (AVR), and is particularly beneficial in specific patient groups. Although categorized as a class IIb recommendation in the 2020 American College of Cardiology (ACC)/American Heart Association (AHA), and the European Society of Cardiology (ESC) management guidelines on valvular heart disease, recent studies bolster its credibility. Research, including a propensity-matched study, underlines the Ross procedure's association with enhanced long-term survival and reduced adverse valve-related events compared to other AVR types.

The importance of rotation to teach secure half-hitch sequences in surgery.

Background: Knot security of half-knot (H) sequences varies with rotation, but half-knots risk destabilisation.

Objectives: To investigate the rotation of half-hitch (S) sequences on knot security.

Materials And Methods: The loop and knot security of symmetrical and asymmetrical sliding and blocking half-hitch sequences was measured using a tensiometer.