Diffuse pulmonary disease caused by nontuberculous mycobacteria in immunocompetent people (hot tub lung
Huitt noted that in a recent series of 27 patients with hot tub lung reported by her colleagues in the occupational medicine group at National Jewish, the disease resolved or improved with treatment in all cases.
Patients with hot tub lung typically are previously healthy and younger than those with other NTM-associated pulmonary disease.
DATA SYNTHESIS: We summarized the clinical presentation and investigations of four presumptive cases and reviewed previously reported cases of hot tub lung.
Recently, hypersensitivity pneumonitis (HP)-like granulomatous lung disease with NTM from exposure to hot water aerosols from hot tubs/spa pools, showers, and swimming pools has been described in immunocompetent individuals (also called "hot tub lung," because the greatest number of cases are associated with hot tubs) (Aksamit 2003; Cappelluti et al.
A case of hot tub lung
due to Mycobacterium avium complex in an immunocompetent host.
There is no standard approach to treatment of hot tub lung
. Case reports describe significant improvement with removal from exposure to the hot tubs.
Differentiation from hot tub lung (a hypersensitivity pneumonitis-like disease; see below) is more difficult and may be impossible on histologic grounds.
Hot tub lung is a recently described entity characterized by a hypersensitivity pneumonitis-like response to nontuberculous mycobacteria (specifically, Mycobacterium avium complex, abbreviated as MAC) inhaled in aerosol form from hot tubs.
Hot tub lung
's symptoms can be easily confused with cold or flu: persistent or unexplained coughing, shortness of breath, chest tightness, fever, muscle aches and chills.
What readers and viewers may not have understood from those stories is that hot tub lung
only occurs in indoor hot tubs, which account for just 16 percent of installations in the United States.
Although the reported number of cases in the United States is small, hot tub lung
is probably underdiagnosed, said Kalra.