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Cavitary formation in non-tuberculous mycobacterial infection is the significant risk for development to chronic pulmonary aspergillosis

Satoru Fujiuchi, Yuka Fujita, Hokuto Suzuki, Tomoaki Aritomi, Hikaru Kuroda, Masaaki Takahashi, Akinori Takeda, Yasuhiro Yamazaki, Tadakatsu Tuji, Toshiaki Fujikane
European Respiratory Journal 2014 44: P2491; DOI:
Satoru Fujiuchi
1Respirarory Medicine, Asahikawa Medical Center, Asahikawa, Hokkaido, Japan
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Yuka Fujita
1Respirarory Medicine, Asahikawa Medical Center, Asahikawa, Hokkaido, Japan
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Hokuto Suzuki
1Respirarory Medicine, Asahikawa Medical Center, Asahikawa, Hokkaido, Japan
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Tomoaki Aritomi
1Respirarory Medicine, Asahikawa Medical Center, Asahikawa, Hokkaido, Japan
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Hikaru Kuroda
1Respirarory Medicine, Asahikawa Medical Center, Asahikawa, Hokkaido, Japan
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Masaaki Takahashi
1Respirarory Medicine, Asahikawa Medical Center, Asahikawa, Hokkaido, Japan
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Akinori Takeda
1Respirarory Medicine, Asahikawa Medical Center, Asahikawa, Hokkaido, Japan
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Yasuhiro Yamazaki
1Respirarory Medicine, Asahikawa Medical Center, Asahikawa, Hokkaido, Japan
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Tadakatsu Tuji
1Respirarory Medicine, Asahikawa Medical Center, Asahikawa, Hokkaido, Japan
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Toshiaki Fujikane
1Respirarory Medicine, Asahikawa Medical Center, Asahikawa, Hokkaido, Japan
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Abstract

Background

Chronic pulmonary aspergillosis (CPA) usually occurs in patients with underlying pulmonary disease. The most frequent underlying condition is history of mycobacterial infection including non-tuberculous mycobacteriosis (NTM). However, the risk factor for progression to CPA in the patients with NTM has not been clear.

Method

We analyzed the medical records of 378 NTM patients who fulfilled 2008 ATS diagnostic criteria between 1997 and 2011 retrospectively. Detection of aspergillus precipitin was applied using agarose immunodiffusion method when the patients were thought to being development of CPA clinically. If the aspergillus precipitin had been converted to positive, we defined the patients as CPA. The clinical data of CPA group were compared with those of non-CPA group.

Result

Thirty-seven out of 378 NTM patients (9.8%) were defined as CPA during study period. There were no significant differences with respect to sex, age, species, diagnostic procedure and presence of diabetes mellitus between CPA and non-CPA groups. Cavitary formation in non-tuberculous mycobacterial infection is the significant risk for development of chronic pulmonary asapergillosis (p < 0.01). In addition to it, larger amount of bacilli in sputum at the time of diagnosis increased the risk to CPA (p <0.05).

Conclusions

The worldwide rise in prevalence of NTM may lead to increasing the patients of CPA underlying with NTM. Because of the chronic pulmonary aspergillosis is known to be refractory pulmonary disease, therefore, it is important to understand the predictive factor in NTM patients that proceeds to chronic pulmonary aspergillosis.

  • Infections
  • © 2014 ERS
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Cavitary formation in non-tuberculous mycobacterial infection is the significant risk for development to chronic pulmonary aspergillosis
Satoru Fujiuchi, Yuka Fujita, Hokuto Suzuki, Tomoaki Aritomi, Hikaru Kuroda, Masaaki Takahashi, Akinori Takeda, Yasuhiro Yamazaki, Tadakatsu Tuji, Toshiaki Fujikane
European Respiratory Journal Sep 2014, 44 (Suppl 58) P2491;

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Cavitary formation in non-tuberculous mycobacterial infection is the significant risk for development to chronic pulmonary aspergillosis
Satoru Fujiuchi, Yuka Fujita, Hokuto Suzuki, Tomoaki Aritomi, Hikaru Kuroda, Masaaki Takahashi, Akinori Takeda, Yasuhiro Yamazaki, Tadakatsu Tuji, Toshiaki Fujikane
European Respiratory Journal Sep 2014, 44 (Suppl 58) P2491;
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