People Recovered from Covid-19 can Lose 20 to 30% of their Lung Function, Doctors said

Some patients who recovered from Covid-19 have suffered reduced lung function and now experience problems such as gasping for air when walking quickly, Hong Kong's Hospital Authority has revealed.

The authority released its findings on Thursday after observing the first group of discharged coronavirus patients.

The city has so far recorded 131 confirmed cases of Covid-19, including three fatalities. Of them, 74 patients have been discharged while one probable coronavirus case has also recovered.

Dr. Owen Tsang Tak-yin, medical director of the authority's Infectious Disease Centre at Princess Margaret Hospital in Kwai Chung, said doctors had already seen around a dozen discharged patients in follow-up appointments. Two to three were unable to do things as they had in the past.

"They gasp if they walk a bit more quickly," Tsang told a media briefing on Thursday. "Some patients might have around a drop of 20 to 30 per cent in lung function [after recovery]."

Tsang, who also heads an authority task force on the clinical management of infection, said these patients would undergo tests to determine how much lung function they still had. Physiotherapy would also be arranged to strengthen their lungs.

A review of lung scans of nine infected patients at Princess Margaret found patterns similar to frosted glass in all of them, suggesting there was organ damage.

Dr Owen Tsang (left) with Dr Dominic So, chief of service of the intensive care unit at...