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VOLUME 9 , ISSUE 1 ( January-June, 2020 ) > List of Articles


Paraquat Poisoning Presenting as the “Daisley Barton Syndrome”

Maddani Shanmukhappa Sagar, Vinod Reddy

Keywords : Daisley Barton syndrome, paraquat poisoning, reactive oxygen species, spontaneous pneumothorax

Citation Information : Sagar MS, Reddy V. Paraquat Poisoning Presenting as the “Daisley Barton Syndrome”. Indian J Respir Care 2020; 9 (1):110-112.

DOI: 10.4103/ijrc.ijrc_47_19

License: CC BY-NC-SA 4.0

Published Online: 08-12-2022

Copyright Statement:  Copyright © 2020; Indian Journal of Respiratory Care.


Paraquat is a bipyridilium herbicide which is highly toxic. Due to its corrosive effects, it can lead to esophagitis, esophageal rupture, and gastritis. It leads to the formation of reactive oxygen species which causes multiorgan damage, prominent among those being pulmonary, renal, and liver dysfunction. One of the rare causes of respiratory distress after paraquat poisoning is spontaneous pneumothorax due to pneumocyte injury, also known as the “Daisley Barton Syndrome.” We report a case of paraquat poisoning who developed alveolitis initially and later had bilateral spontaneous pneumothorax. Bilateral chest tubes were inserted, and the patient recovered initially but later deterorated due to other complications. We should be aware of this phenomenon, and sudden worsening of the respiratory parameters should alert the clinician for prompt treatment.

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