Sinus Node Dysfunction due to Occlusion of the Sinus Node Artery during Percutaneous Coronary Intervention.

Background: Sinus node artery occlusion (SNO) is a rare complication of percutaneous coronary intervention (PCI). We analyze both the short- and long-term consequences of SNO.

Methods: We retrospectively reviewed 1379 consecutive PCI's involving RCA and Cx arteries performed in our heart institute from 2016 to 2019.

Effect of weaning age on the small intestine mucosa of rats.

Weaning of mammalian progeny is associated with a change in food composition and mother-offspring separation. Weaning results in a critical period of low voluntary feed intake, during which the animal is adapting to the starter diet. To evaluate the effects of weaning age on morphological changes that occur in the intestines of rats, we assessed intestinal histomorphometry and somatic growth in 21-days-old pups and 90-days-old mature rats that had been weaned early (day 16), normally (day 21), or late (day 26).