Ultrasonographic and resistance index evaluation of nails in psoriatic arthritis, psoriasis, and control groups: a cross-sectional study.

Background: Nail psoriasis occurs frequently in patients with psoriatic disease, it can lead to functional impairment, pain, discomfort, decreased quality of life and can also be a predictor for the development of arthritis. Early recognition of this condition can provide early and effective treatment and prevent structural impairment. This study aims to identify nail ultrasonographic characteristics in three groups: psoriasis (PsO), psoriatic arthritis (PsA) and controls patients, to determine if the ultrasonography (US) can identify early signs of nail psoriatic impairment or local inflammation.

Incidence and endoscopic characteristics of acute laryngeal lesions in children undergoing endotracheal intubation.

Introduction: Acute laryngeal lesions after intubation appear to be precursors of chronic lesions.

Objective: To describe the incidence and type of acute laryngeal lesions after extubation in a pediatric intensive care unit (PICU).

Methods: A cohort study involving children from birth to <5 years, submitted to intubation for more than 24h in the PICU of an university hospital.

Oxidative stress evaluation of ischemia and reperfusion in kidneys under various degrees of hypothermia in rats.

Purpose: To design an animal model of ischemia-reperfusion (I/R) in kidneys and evaluate the role that predetermined ranges of local hypothermia plays on markers of stress-oxydative as well as on histologic sections.

Methods: Twenty eight male rats Wistar, under general anesthesia, undergone right nephrectomy (G0, control group) followed by left kidney ischemia during 40 min. Four temperatures groups were designed, with seven animals randomized for each group: normothermic (G1, ±37ºC), mild hypothermia (G2, 26ºC), moderate hypothermia (G3, 15ºC) and deep hypothermia (G4, 4ºC).

Topical hepatic hypothermia plus ischemic preconditioning: analysis of bile flow and ischemic injuries after initial reperfusion in rats.

Purpose: To evaluate the effects of the topical liver hypothermia and IPC combination against I/R injury after initial reperfusion.

Methods: In 32 Wistar rats, partial liver ischemia was induced for 90 minutes in normothermia (IN), ischemic preconditioning (IPC), 26ºC topical hypothermia (H) and 26ºC topical hypothermia plus IPC (H+IPC). MAP, body temperature and bile flow were recorded each 15 minutes.