Pulsed-field ablation: Computational modeling of electric fields for lesion depth analysis.

Background: Pulsed-field ablation (PFA) is an emerging and promising nonthermal technology for cardiac ablation. The effective applied voltage to achieve adequate irreversible myocardial injury is not well studied. The pulsed-field strength remains independent of tissue contact; therefore, PFA is assumed to be an ablation technology, not mandating the need for tissue contact.

Targeted cyst wall puncture and aspiration during EUS-FNA increases the diagnostic yield of premalignant and malignant pancreatic cysts.

Background: Characterization of pancreatic cysts by using EUS-FNA includes chemical and cytologic analysis.

Objective: To evaluate whether material obtained from FNA of the cyst wall increases diagnostic yield.

Design: Prospective series.