When managing coronavirus disease 2019 (COVID-19) patients, radiological imaging complements clinical evaluation and laboratory parameters. We aimed to assess the sensitivity of chest radiography findings in detecting COVID-19, describe those findings, and assess the association of positive chest radiography findings with clinical and laboratory findings. A multicentre, cross-sectional study was conducted involving all primary health care corporation-registered patients (2485 patients) enrolled over a 1-month period during the peak of the 2020 pandemic wave in Qatar. These patients had reverse transcription-polymerase chain reaction-confirmed COVID-19 and underwent chest radiography within 72 hours of the swab test. A positive result on reverse transcription-polymerase chain reaction was the gold standard for diagnosing COVID-19. The sensitivity of chest radiography was calculated. The airspace opacities were mostly distributed in the peripheral and lower lung zones, and most of the patients had bilateral involvement. Pleural effusion was detected in some cases. The risk of having positive chest X-ray findings increased with age, Southeast Asian nationality, fever, or a history of fever and diarrhoea. Patients with cardiac disease, obesity, hypertension, diabetes, and chronic kidney disease were at a higher risk of having positive chest X-ray findings. There was a statistically significant increase in the mean serum albumin, white blood cell count, neutrophil count, and serum C-reactive protein, hepatic enzymes, and total bilirubin with an increase in the radiographic severity score.
Introduction: Living-donor liver transplantation (LDLT) is a complex procedure requiring a special perioperative patients' care. Despite the improvements in the operative techniques and perioperative care, early postoperative mortality remains a disappointing event. The current study is conducted to determine the incidence, causes and potential predictive factors of early postoperative mortality after LDLT. Methods: We reviewed the data of patients who underwent LDLT during the period between May 2004 till October 2020. Results: During the study period, 780 cases underwent LDLT. Early Mortality occurred in 109 cases (14%). We divided our cases into two groups, Early Mortality group (n=109) and Survivors group (n=671). Higher preoperative INR, creatinine, and MELD score were found in Early Mortality group. More blood loss and perioperative transfusions were found in Early Mortality group. Longer ICU stay with higher incidence of pulmonary and vascular complications were found in Early Mortality group. Preoperative MELD score, blood transfusion, pulmonary complications, and vascular complications were significant predictors of early mortality in multivariate analysis. Conclusion: Reduction of perioperative transfusions together with early detection and management of vascular and respiratory complications are essential to reduce early mortality after LDLT.
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