PEComa of the lung

Perivascular epithelioid cell tumor (PEComa), also called clear cell \u2032sugar\u2032 tumor of the lung, is a rare benign tumor arising from perivascular epithelioid cells (PECs). We report a case of a 15-year-old boy who presented with right lower lobe lesion which turned out to be a clear cell tumor of the lung. An [18F]-fluoro-2-deoxy-D-glucose (FDG) - positron emission tomography (PET) scan revealed mild FDG uptake in the lung lesion (SUV< 1) with no active uptake elsewhere in the body. We discuss the clinical, radiologic and immunohistochemical features of clear cell \u2032sugar\u2032 tumor of lung and compare them with published literature

A numerical modeling of cryogenic heat exchanger: Review

ABSTRAC

Novel cost-effective method of laparoscopic feeding-jejunostomy

A feeding jejunostomy tube placement is required for entral feeding in a variety of clinical scenarios. It offers an advantage over gastrostomies by eliminating the risk of aspiration. Standard described laparoscopic methods require special instrumentation and expensive custom-made tubes. We describe a simple cost-effective method of feeding jejunostomy using regular laparoscopic instruments and an inexpensive readily available tube. The average operating time was 35 min. We had no intra-operative complications and only one post-operative complication in the form of extra-peritoneal leakage of feeds due to a damaged tube. No complications were encountered while pulling out the tubes after an average period of 5–6 weeks

Effectiveness of sodium hypochlorite gel and solutions in endodontics: A systematic review

Aim: The purpose of this systematic review was to evaluate the superiority of sodium hypochlorite (NaOCl) liquid or NaOCl gel in disinfecting root canals. Methods: Online electronic databases such as PubMed-MEDLINE, Scopus, and Embase were explored for suitable studies. In this evaluation, papers were deemed eligible for the data extraction if they included in vitro experiments using NaOCl liquid or NaOCl gel for canal irrigation and its influence on the smear layer, as well as their elimination of the bacteria from the root canal. The review was registered in International Prospective Register of Systematic Reviews with registration number CRD420223441126. Results: One hundred and sixty-one articles were found after initial screening and four articles were included for qualitative synthesis. Overall risk of bias was “high.” Two studies did not show significant variations among 2.5% NaOCl solution and gel. Conclusion: As per rigorous investigation done, NaOCl solution proved more efficient against Enterococcus faecalis than its gel form. More research is needed to determine the best effective NaOCl type, concentration, duration, and treatment regimens

PEComa of the lung

Perivascular epithelioid cell tumor (PEComa), also called clear cell ′sugar′ tumor of the lung, is a rare benign tumor arising from perivascular epithelioid cells (PECs). We report a case of a 15-year-old boy who presented with right lower lobe lesion which turned out to be a clear cell tumor of the lung. An [18F]-fluoro-2-deoxy-D-glucose (FDG) - positron emission tomography (PET) scan revealed mild FDG uptake in the lung lesion (SUV< 1) with no active uptake elsewhere in the body. We discuss the clinical, radiologic and immunohistochemical features of clear cell ′sugar′ tumor of lung and compare them with published literature

Characterising the long-term clinical outcomes of 1190 hospitalised patients with COVID-19 in New York City: a retrospective case series

Objective To characterise the long-term outcomes of patients with COVID-19 admitted to a large New York City medical centre at 3 and 6 months after hospitalisation and describe their healthcare usage, symptoms, morbidity and mortality.Design Retrospective cohort through manual chart review of the electronic medical record.Setting NewYork-Presbyterian/Columbia University Irving Medical Center, a quaternary care academic medical centre in New York City.Participants The first 1190 consecutive patients with symptoms of COVID-19 who presented to the hospital for care between 1 March and 8 April 2020 and tested positive for SARS-CoV-2 on reverse transcriptase PCR assay.Main outcome measures Type and frequency of follow-up encounters, self-reported symptoms, morbidity and mortality at 3 and 6 months after presentation, respectively; patient disposition information prior to admission, at discharge, and at 3 and 6 months after hospital presentation.Results Of the 1190 reviewed patients, 929 survived their initial hospitalisation and 261 died. Among survivors, 570 had follow-up encounters (488 at 3 months and 364 at 6 months). An additional 33 patients died in the follow-up period. In the first 3 months after admission, most encounters were telehealth visits (59%). Cardiopulmonary symptoms (35.7% and 28%), especially dyspnoea (22.1% and 15.9%), were the most common reported symptoms at 3-month and 6-month encounters, respectively. Additionally, a large number of patients reported generalised (26.4%) or neuropsychiatric (24.2%) symptoms 6 months after hospitalisation. Patients with severe COVID-19 were more likely to have reduced mobility, reduced independence or a new dialysis requirement in the 6 months after hospitalisation.Conclusions Patients hospitalised with SARS-CoV-2 infection reported persistent symptoms up to 6 months after diagnosis. These results highlight the long-term morbidity of COVID-19 and its burden on patients and healthcare resources