MONDAY, June 23 (HealthDay News) -- The shocking revelation by her father that 24-year-old British singer-songwriter Amy Winehouse may have a mild form of emphysema leaves experts with more questions than answers.
It's possible that Winehouse, in addition to her well-publicized use of drugs and cigarettes, has a congenital condition that contributed to her current crisis, one lung doctor said.
"If you see emphysema in a young person, you have to think of that," said Dr. Len Horovitz, a pulmonary specialist with Lenox Hill Hospital in New York City.
Dr. Norman Edelman, chief medical officer of the American Lung Association, added, "Generally, we don't really see emphysema until a person is in their 40s, but in a small number of people it could occur much earlier, especially in someone who smoked a long time."
"There's also the possibility -- not a probability -- that she's got a genetic variation. Five percent of people with emphysema have a genetic predisposition," Edelman said.
According to the Associated Press, Winehouse apparently collapsed at her north London home last Monday and was admitted into a London hospital, where she has been all week.
Winehouse's father, Mitch Winehouse, told the London Sunday Mirror that his daughter was told she would have to wear an oxygen mask unless she stops smoking drugs and cigarettes.
However, he has since modified that statement. According to MTV News, Mitch Winehouse told BBC 1 Radio on Monday that his daughter fainted at her home on June 16 and has been diagnosed with what he called "a small amount of emphysema." The soul singer's lungs do show a small amount of scarring, but her illness has not progressed "too far," her father said.
"It's not irreparable. Really, she can't even smoke anymore, let alone that other thing. With patience, her lungs will recover completely. She's responding very well to treatment, she's flourishing," he said.
The singer's U.S. publicist, Tracey Miller, agreed, saying on Monday that Winehouse is "showing early signs of what could lead to emphysema but is reacting well to treatment."
What is well-known is that Winehouse has a long history of drug abuse, including crack cocaine.
According to Horovitz, smoking crack can also result in a condition known as "acute crack lung," which shows up from one hour to 48 hours after smoking large quantities of crack. "It's temporary, but it can cause a certain amount of destruction of the lung tissue. But if you have enough [episodes], it adds up to a lot of lung disease," Horovitz explained.
Emphysema involves damage to the air sacs or alveoli in the lungs, reducing the amount of oxygen the body can take in. Symptoms typically include shortness of breath and a chronic cough, according to the U.S. National Institutes of Health. The most common cause is smoking. The disease, once entrenched, cannot be reversed. The condition can be stabilized, however, if a person stops smoking.
Still, "lung units or alveoli do not come back," Horovitz said.
Symptoms can be treated with bronchodilators, steroids, inhalers and, in a worst-case scenario, oxygen, Horovitz added.
According to AP, Winehouse's lung capacity is at 70 percent. Physicians generally conduct pulmonary function tests by taking into account height, weight, ethnic group and smoking history. They then calculate a predicted lung function.