All news from Anaesthesiology

Skin Cancer Is Diagnosed Accurately By Dermatologists

According to a new study, researcher determine that physician assistants (PAs) are increasingly used in dermatology practices to cut costs and improve access to care, but are more likely than dermatologists to perform unnecessary skin biopsies to check for cancer, while being less likely to accurately diagnose early stage skin cancers. The study was published in JAMA Dermatology.

Carbon dioxide Differences Can Occur In Paediatric Patients Undergoing General Anaesthesia

The researcher demonstrated that negative PaCO2–ETCO2 differences (i.e. ETCO2 reading higher than PaCO2) can occur in pediatric patients undergoing general anesthesia after tracheal intubation with a cuffed tube and mechanical ventilation. The results of this large study (799 patients and 2452 measurements) differ from previous work in this area.

For instance, they found an overall mean arterial to ETCO2 difference of −0.18 kPa, with 71.2% of samples showing a negative difference, compared with Goonasekera et al. who found a mean PaCO2– an ETCO2 difference of +0.66 KPa, with only 22.7% of samples demonstrating a negative PaCO2– ETCO2. Researcher attributes the high proportion of negative values they obtained to an incorrect measurement setting in the apparatus used for gas analysis and capnography.

Rapid Effect of Ketamine for Depression, Suicidality

Ketamine has been found to be effective in refactory depression. The researchers have developed a nasal spray formulation of ketamine that could help alleviate symptoms of major depression and suicide thoughts, according to a study published in The American Journal of Psychiatry (AJP).

Association Between Masticatory Muscle Force And Mandibular Shape

According to a study, researchers investigate the forces applied to the mandible by the masticatory muscles, is of considerable importance from clinical, anthropological and evolutionary perspectives. The Purpose of this study is to identify the relation between masticatory muscle force and mandibular shape and to relate variations in specific muscle CSAs to particular aspects of mandibular shape and size variation.

Head CT scans of 382 adults were utilized to measure masseter and temporalis muscle cross-sectional areas (CSA) as a surrogate for muscle force and 17 mandibular anthropometric measurements. The association between shape and muscle CSA (controlled for size) was assessed using two-block partial least squares analysis. Correlations were computed between mandibular variables and muscle CSA (all controlled for size).