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Comparison between the radionuclide salivagram and videofluoroscopic swallowing study methods for evaluating patients with aspiration pneumonia

Annals of Nuclear Medicine volume 27, pages 247–252 (2013)Cite this article

Abstract

Objective

A videofluoroscopic swallowing study (VFSS) is generally used to assess dysphagia and aspiration, although false-negative results may be obtained. Saliva aspiration may cause false-negative VFSS findings in elderly people. A radionuclide salivagram can be useful in detecting saliva aspiration. We therefore compared these two methods for the evaluation of patients with aspiration pneumonia.

Methods

We prospectively enrolled 50 patients with aspiration pneumonia into this study. All patients underwent VFSS, and were evaluated on the Penetration-Aspiration Scale. A salivagram was performed on the day after VFSS and each patient received 1 mL Tc-99 m DTPA sublingually. Both dynamic and delayed images were obtained.

Results

Aspiration was observed in 34 % of patients by salivagram and in 42 % by VFSS. The frequency of tests that were positive for aspiration pneumonia using a combination of the two methods was 52 %. Five patients with positive aspiration findings on salivagram were negative on VFSS. The association between VFSS and salivagram findings was significant but the total agreement was 72 %. The frequency of aspiration pneumonia was significantly associated with an abnormal salivagram finding.

Conclusions

A salivagram may be a useful method for the evaluation of aspiration in elderly people, and a combination of the VFSS and salivagram methods could enable a more effective investigation of aspiration pneumonia.

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Affiliations

  1. Department of Rehabilitation, Incheon St. Mary’s Hospital, The Catholic University of Korea, Incheon, Korea

    Dae-Hyun Jang

  2. Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, 388-1 Pungnap-2 dong, Songpa-gu, Seoul, 138-736, Korea

    Kyoung Hyo Choi & Dae Ha Kim

  3. Division of Pulmonary and Critical Care Medicine, University of Ulsan College of Medicine, Seoul, Korea

    Chae-Man Lim

  4. Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea

    Jae Seung Kim

Authors
  1. Dae-Hyun Jang
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  2. Kyoung Hyo Choi
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  3. Dae Ha Kim
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  4. Chae-Man Lim
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  5. Jae Seung Kim
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Corresponding author

Correspondence to Kyoung Hyo Choi.

Appendix

Appendix

See appendix Table 4.

Table 4 The penetration-aspiration scale (PAS)
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Jang, DH., Choi, K.H., Kim, D.H. et al. Comparison between the radionuclide salivagram and videofluoroscopic swallowing study methods for evaluating patients with aspiration pneumonia. Ann Nucl Med 27, 247–252 (2013). https://doi.org/10.1007/s12149-012-0680-6

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  • DOI: https://doi.org/10.1007/s12149-012-0680-6

Keywords

  • Dysphagia
  • Pneumonia
  • Aspiration