Study shows pandemic's impact on CT screenings for lung cancer

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Study shows pandemic's impact on CT screenings for lung cancer

Press releases may be edited for formatting or style | December 18, 2020 CT X-Ray
When the pandemic hit the U.S. in early 2020, many routine activities came to a halt.

The same occurred with doctors' visits -- regular checkups and screening for many health conditions.

A recent study led by University of Cincinnati Cancer Center researchers shows the impact the pandemic had on lung cancer screening, which experts say could be bad for both screening programs in general and for the overall well-being of patients. The article appears on the website of the Journal of the American College of Surgeons in advance of print.

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Robert Van Haren, MD, assistant professor of surgery at UC, a UC Health thoracic surgeon and corresponding author on the study, says low-dose radiation CT scans have been shown to catch lung cancer earlier. He adds that lung cancer is the leading cause of cancer death in the U.S., but if it's detected early, it has cure rates as high as 90%. UC created the first lung cancer screening program in the region, Van Haren adds.

CT scans combine a series of X-ray images taken from different angles around the body and then use computer processing to create images of "slices" of the bones, blood vessels and soft tissues inside the body. These images provide more detailed information than plain X-rays do.

Van Haren explains that like many programs, the COVID-19 pandemic caused a shutdown for the lung cancer screening program, but researchers wanted to find out how much of an impact that shutdown had on overall numbers of patients screened as well as cancer diagnoses.

He says that, nationally, diagnoses for many conditions, like appendicitis, heart attack and stroke, decreased during the pandemic and that evidence from the United Kingdom showed nearly a 5% increase in lung cancer deaths due to delaying a diagnosis during the pandemic.

The team used a database of patient information and outcomes to compare monthly average screenings between January 2017 and February 2020 against the COVID-19 shutdown period of March 2020 to July 2020.

"When low-dose radiation CT scans were stopped on March 13, 2020, 818 screening visits were canceled," he says. "We began gradually reopening on May 5 and then fully opened again on June 1. Total monthly CT scans and new patient monthly scans significantly decreased during the COVID-19 period we analyzed, and new patient scans have remained low despite resuming full operations.

"The most concerning thing we found was that patients with lung nodules, or suspicious places in the lungs that could be cancerous, increased after we reopened. This means that if the shutdown never occurred, we could have potentially found and treated issues earlier."

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