Chest Radiograph within a Week Prior Anesthesia during COVID-19 Pandemic in King Chulalongkorn Memorial Hospital
Keywords:
Chest radiograph (CXR), COVID-19, SARS-CoV-2, Preoperative Chest RadiographAbstract
Background: In COVID-19 pandemic, King Chulalongkorn
Memorial Hospital has developed a COVID-19 screening
protocol for every patient undergoing time sensitive
procedures, urgency and emergency surgeries. The
preventive measures are obligation since April 13, 2020
including the screening questionnaire and the detection
of SARS-CoV-2 RNA within 2 days prior to schedule for
anesthesia. The chest radiograph within a week is
requested even the patient had previous study.
Objective: To observe the prevalence of detected
SARS-CoV-2 and the abnormal lung opacities on chest
radiograph within a week prior to anesthesia
Methods: This was descriptive, prospective data collection
of retrospective analysis of 296 patients from King
Chulalongkorn Memorial Hospital. Data were collected
from the medical record during April 13-30, 2020. All
patients undergoing anesthesia with universal screening
RT-PCR for COVID-19 and preoperative chest radiograph
were included. The prevalence of detected SARS-CoV-2
and detected abnormal lung parenchymal opacity on chest
radiograph were collected as the primary outcome.
Results: None of patients had been detected SARSCoV-
2 by RT-PCR. The chest radiography was done in
237 patients undergoing anesthesia. There were 204
patients (86%) strictly to the hospital screening protocol
of chest radiograph. Among these patients, 51 patients
(25%) had abnormal lung parenchymal opacities. The
chest radiographic findings were related to their prior
medical conditions.
Conclusion: None of patients underwent anesthesia are
detected for SARS-CoV-2 by RT-PCR confirmation test.
There is no new lesion of lung parenchyma on chest
radiography within a week prior to schedule for anesthesia
in the patients of negative screening for COVID-19.
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