Laboratory Modeling of SARS-CoV-2 Exposure Reduction Through Physically Distanced Seating in Aircraft Cabins Using Bacteriophage Aerosol - November 2020.

Aircraft can hold large numbers of persons in close proximity for long periods, which can increase the risk for transmission of infectious disease.* Current CDC guidelines recommend against travel for persons who have not been vaccinated against COVID-19, and a January 2021 CDC order requires masking for all persons while on airplanes. Research suggests that seating proximity on aircraft is associated with increased risk for infection with SARS-CoV-2, the virus that causes COVID-19 (1,2).

Gossypiboma revisited: A never ending issue.

Introduction: Leaving a surgical item inside the patient at the end of surgery, is one of the most dreadful complications. The item is frequently a surgical sponge and the resultant morbidity is usually severe. Additionally, the event poses considerable psychic strain to the operating team, notably the surgeon.

Airborne exposure patterns from a passenger source in aircraft cabins.

Airflow is a critical factor that influences air quality, airborne contaminant distribution, and disease transmission in commercial airliner cabins. The general aircraft-cabin air-contaminant transport effect model seeks to build exposure-spatial relationships between contaminant sources and receptors, quantify the uncertainty, and provide a platform for incorporation of data from a variety of studies. Knowledge of infection risk to flight crews and passengers is needed to form a coherent response to an unfolding epidemic, and infection risk may have an airborne pathogen exposure component.

Drainage of pancreatic pseudocysts. The importance of cyst wall biopsy in the recent era.

Objective: While open internal drainage has been the standard treatment for pancreatic pseudocysts, less invasive techniques which pay little attention to cyst wall biopsy, are becoming popular. The aim of this study is to report on our experience in draining pancreatic pseudocysts and probe the necessity or otherwise of obtaining a wall biopsy at drainage.

Methods: Operation theatre registry, operation log books and medical records at Aseer Central Hospital, Abha, Kingdom of Saudi Arabia, were reviewed to retrieve the clinical details of patients with pancreatic pseudocyst who required a drainage procedure in a 13 years period from August 1989 to November 2002.

Comparison of emission models with computational fluid dynamic simulation and a proposed improved model.

Understanding source behavior is important in controlling exposure to airborne contaminants. Industrial hygienists are often asked to infer emission information from room concentration data. This is not easily done, but models that make simplifying assumptions regarding contaminant transport are frequently used.

Choledochocele: the disputed origin.

Choledochocele is classified as a type III choledochal cyst according to Alonso-Lej classification. Although it is anatomically related to the common bile duct, it does not share the strong premalignant potential of the more common types of choledochal cysts. In addition, duodenal mucosa has been found lining many of these cysts.