Clinical symptoms of COVID-19 pneumonia in children: A protocol for systematic review and meta-analysis.

Background: This meta-analysis aimed to compare the clinical symptoms of COVID-19 pneumonia in children.

Methods And Analysis: Electronic databases including PubMed, EMBASE, Web of Science, China National Knowledge Infrastructure (CNKI) database, Wanfang Database, and Chinese Biomedical Literature Database (CBM) were searched from its inception to June 21, 2020. We only included studies that reported clinical symptoms of COVID pneumonia in children.

Overcoming resistance to anti-PD-1 immunotherapy in lymphoepithelioma-like carcinoma: A case report and review of the literature.

Objectives: Primary pulmonary lymphoepithelioma-like carcinoma (LELC) is a rare subtype of non-small-cell lung cancer with no established treatment protocols. Immunotherapy is rarely used as a second-line choice in patients with advanced LELC, and more cases of this condition should be presented.

Materials And Methods: We present a patient with advanced primary pulmonary LELC overcoming the resistance to second-line anti-programmed death-1 (PD-1) immunotherapy.

Comparison of arthroscopic versus open surgery on external snapping hip caused by gluteal muscle contracture.

Purpose: To compare the outcomes of contracture release by arthroscopic versus open surgical approach in patients with external snapping hip (ESH) caused by gluteal muscle contracture (GMC).

Methods: Medical records of patients with ESH due to GMC who underwent open surgery (n = 44) or arthroscopic surgery (n = 48) between October 2008 and October 2014 were reviewed. Patients were followed up at 1, 3, 12, and 24 months postoperatively.

Arthroscopic Repair of Chronic Tears of the Anterior Horn of the Lateral Meniscus That Includes Covering the Lesion With an Infrapatellar Pedicle Fat Flap.

This study analyzed the efficacy and safety of arthroscopic outside-in repair of the anterior horn of the lateral meniscus that includes covering the lesion with an infrapatellar pedicle fat flap in patients with chronic tears. This retrospective study reviewed 87 patients with chronic tears of the anterior horn of the lateral meniscus who underwent arthroscopic outside-in repair, which included covering the lesion with an infrapatellar pedicle fat flap (group A, n=45) or not (group B, n=42). The 2 groups were similar in terms of age, sex, body mass index, and disease duration.

Comparison of arthroscopic versus open surgery on external snapping hip caused by gluteal muscle contracture.

Purpose: To compare the outcomes of contracture release by arthroscopic versus open surgical approach in patients with external snapping hip (ESH) caused by gluteal muscle contracture (GMC).

Methods: Medical records of patients with ESH due to GMC who underwent open surgery (n = 44) or arthroscopic surgery (n = 48) between October 2008 and October 2014 were reviewed. Patients were followed up at 1, 3, 12, and 24 months postoperatively.

[Treatment of type IV Pipkin fracture through transtrochanteric approach with trochanteric osteotomy].

Objective: To summarize the short-term effectiveness of type IV Pipkin fracture through transtrochanteric approach with trochanteric osteotomy.

Methods: Between January 2007 and January 2010, 15 cases of type IV Pipkin fracture were treated through transtrochanteric approach with trochanteric osteotomy. There were 9 males and 6 females with an average age of 42.