Trial reportEsophagus : official journal of the Japan Esophageal Society2025
Preoperative inspiratory muscle training preserved diaphragmatic excursion after esophagectomy: a randomized-controlled trial.
Trial report in Esophagus : official journal of the Japan Esophageal Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
5 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Pooled it
- The impact of inspiratory muscle training on pulmonary function recovery and pulmonary complications in patients undergoing cardiothoracic surgery: a systematic review and meta-analysis.Frontiers in physiology · 2026Pooled it
- Association of Preoperative Inspiratory Muscle Weakness and Respiratory Sarcopenia with Postoperative Pneumonia Following Esophagectomy: A Multicenter Retrospective Cohort Study.Annals of surgical oncology · 2026Article
- Identification and validation of an explainable machine learning model for early postoperative pulmonary complications after esophagectomy in patients with esophageal cancer.Journal of gastrointestinal oncology · 2026Article
- "Liuzijue" Qigong training enhances early pulmonary function recovery after esophageal cancer surgery.World journal of gastrointestinal surgery · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
Abstract
backgroundPreoperative inspiratory muscle training (IMT) enhances diaphragmatic excursion (DE) in patients with esophageal cancer; however, the postoperative effects of IMT on DE have not yet been evaluated. This study aimed to investigate the effect of preoperative IMT on perioperative diaphragmatic function as measured by DE, inspiratory muscle strength, lung function, and exercise tolerance.
methodsThis was a parallel, randomized-controlled trial. Patients with thoracic or abdominal esophageal cancer scheduled for esophagectomy were randomized into either the incentive spirometry (IS) or IMT group. Each intervention was performed during preoperative neoadjuvant chemotherapy (NAC). The primary outcome was the DE, and the secondary outcomes were maximal inspiratory pressure (MIP), lung function, and exercise tolerance, which were measured before and 1-3 months after esophagectomy.
resultsThirty-two patients were included in the analysis. The DE in the IMT group (n = 15) increased from baseline to pre-operation, and the rate of change was significantly greater than that in the IS group (n = 17). Although the DE and MIP decreased in both groups after esophagectomy, the decline in the DE after esophagectomy was significantly lower in the IMT group than that in the IS group (p < 0.05). Furthermore, significant differences in DE persisted at least until 3 months post-esophagectomy, whereas MIP did not differ significantly at any time point. Pulmonary function and exercise tolerance were not significantly different between the two groups.
conclusionsThe IMT before esophagectomy enhanced diaphragmatic function, which was preserved for more than 3 months after esophagectomy.
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Registered trials
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