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During the procedure, patients may feel a feeling of tightness on the skin – most machines use vacuums to hold the skin in place – and the cold can be uncomfortable until the skin becomes numb during treatment. Afterwards, Dr Bowe said, patients sometimes experience a tingling, tingling, and needling sensation when the sensation returns to the treatment area.

In the days and weeks following treatment, according to the manufacturer, patients may also experience a litany of temporary side effects, including redness, swelling, bruising, firmness, tingling, tingling, tenderness, cramps, pain, itching, or skin tenderness. When patients are treated under the chin, they may also experience a feeling of fullness in the back of the throat. Rare side effects also include frostbite, hernia, dizziness, or pain that can last for weeks.

PAH, the disease Linda Evangelista currently suffers from, is cited by the manufacturer as another rare side effect of CoolSculpting – but recent estimates suggest the risk may be higher than the company says. Zeltiq, the company that licenses CoolSculpting, estimates that PAH develops after one in 4,000 CoolSculpting treatments. But in a study published this year, doctors in Canada followed 2,114 patients who had received a total of 8,658 CoolSculpting treatments. from 2015 to 2019, finding PAH to occur after 1 in 666 treatments. And once patients develop the disease, it usually needs to be treated with surgical liposuction, but surgery may not eliminate the problem or introduce new problems. . According to her trial, Ms. Evangelista underwent several corrective surgeries, which left her with “huge keloid scars.”

The new CoolSculpting models seem to be safer, however. In the Canadian study, researchers reported that the risk of PAH was significantly lower – occurring after about one in 2,000 treatment – in patients treated with newer machines, possibly because they require longer treatment times. shorter and lower vacuum settings, so less force is exerted on the tissue, Dr. Friedman said.

Doctors do not yet know what causes PAH to develop in some CoolSculpting patients. Statistics suggest men are at increased risk compared to women, as 55 percent of patients who developed PAH in the Canadian study were men, although men typically only make up about 15 percent of patients. CoolSculpting.

As to what happens to the tissues when PAH develops, that is also not clear. It’s possible that when the body tries to repair damage from CoolSculpting, it recruits other cells or activates repair mechanisms that lead to tissue growth, Dr Bowe said. “But we don’t really understand why this is happening.”

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