Confirming gastric tube placement in neurocritical patients using the combined effects of end-tidal CO and pH testing: A prospective diagnostic study.

Objective: To assess the predictive effects of end-tidal carbon dioxide partial pressure (PETCO) in combination with pH measurement in confirming gastric tube placement in neurologically critical patients.

Methods: This study included 105 patients with gastric tubes placed in the neurological intensive care unit of Henan Provincial People's Hospital between November 2023 and April 2024. By employing X-ray as a gold standard, we compared the predictive value of PETCO, pH testing, or PETCO in combination with pH measurement on the position of the tubes.

Impact high fat diet on myocardial strain in mice by 2D speckle tracking imaging.

Background: High-fat diet (HFD) had a complex impact on the myocardium and resulted in diastolic dysfunction and hypertension on left ventricular (LV) hypertrophy, which can cause cardiac remodeling. Two-dimensional speckle tracking echocardiography (2D-STE) provided deformation information of the LV, which had been reported to be valuable in identifying preclinical or subtle myocardial dysfunction. This study assessed whether 2D-STE can investigate the effect of HFD on cardiac function in mice.