Nonsurgical Pneumoperitoneum: A Rare Thoracoabdominal Complication of Asthma Exacerbation
Takuya Nagahara, Kazuhiko Iwasaki, Saya Tsukida, Akihito Okazaki

TL;DR
A rare case shows that asthma flare-ups can cause air in the abdomen without surgery, and may not need fasting if no surgery is involved.
Contribution
Demonstrates that asthma exacerbation alone can lead to nonsurgical pneumoperitoneum without abdominal symptoms.
Findings
Asthma exacerbation can cause nonsurgical pneumoperitoneum without abdominal symptoms.
Conservative treatment without fasting is sufficient after ruling out surgical causes.
Abstract
Asthma‐related nonsurgical pneumoperitoneum is extremely rare. This case highlights that even without abdominal symptoms, free air may result solely from asthma exacerbation, and conservative treatment without fasting can be sufficient after surgical causes are excluded. This case highlights that even without abdominal symptoms, free air may result solely from asthma exacerbation, and conservative treatment without fasting can be sufficient after surgical causes are excluded.
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAbdominal Surgery and Complications · Appendicitis Diagnosis and Management · Pneumothorax, Barotrauma, Emphysema
An 82‐year‐old woman with bronchial asthma presented with dyspnea and cough and was diagnosed with respiratory failure. Chest computed tomography (CT) revealed diffuse bronchial‐wall thickening consistent with asthma exacerbation (Figure 1A) and free air under the diaphragm, without any intra‐abdominal pathology (Figure 1B–E). She remained haemodynamically stable and had no abdominal symptoms such as tenderness.
Based on the clinical course, nonsurgical pneumoperitoneum (NSP) associated with asthma exacerbation was diagnosed. She was treated conservatively with rest, systemic corticosteroids and inhaled bronchodilators. Follow‐up CT on the next day showed complete resolution of the pneumoperitoneum (Figure 2A–D).
NSP accounts for approximately 10% of all pneumoperitoneum cases and is typically associated with abdominal interventions. Thoracic causes, including mechanical ventilation or cardiopulmonary resuscitation, are rare [1]. Although one case of asthma‐associated NSP has been reported [2], that case involved abdominal symptoms and did not clearly arise in the context of an asthma exacerbation. In contrast, our case developed solely in the setting of an asthma attack, without abdominal complaints or procedures, and was successfully managed without fasting or surgical consultation. This highlights the possibility of conservative management in carefully selected patients. Clinicians should consider this rare presentation and exclude surgical emergencies.
Author Contributions
T.N. and K.I. wrote the initial draft of the manuscript and were responsible for the drafting and image modification. T.N., K.I., S.T. and A.O. were directly involved in treatment, critically revised the manuscript, and approved the final version.
Consent
Written informed consent was obtained from the patient for the publication of this report in accordance with the journal's patient consent policy.
Conflicts of Interest
The authors declare no conflicts of interest.
The reference list from the paper itself. Each links out to its DOI / PubMed record.
- 1R. A. Mularski , M. L. Ciccolo , and W. D. Rappaport , “Nonsurgical Causes of Pneumoperitoneum,” Western Journal of Medicine 170 (1999): 41–46.9926735 PMC 1305434 · pubmed ↗
- 2A. Dabsha , M. Feltes Escurra , A. Aboud , and S. Nazir , “Not All Free Air Needs a Scalpel: A Case of Spontaneous Pneumoperitoneum in a Patient With Asthma,” Cureus 17, no. 5 (2025): e 84398.40535359 10.7759/cureus.84398 PMC 12175743 · doi ↗ · pubmed ↗
