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INTRODUCTION: The optimal time to discontinue patients from mechanical ventilation is critical as premature discontinuation as well as delayed weaning can result in complications. The literature on diaphragm function assessment during the weaning process in the intriguing subpopulation of critically ill neuromuscular disease patients is lacking. METHODS: Patients with neuromuscular diseases, on mechanical ventilation for more than 7 days, and who were ready for weaning were studied. During multiple T-piece trials over days, diaphragm function using ultrasound and diaphragm electrical activity (Edi peaks using NAVA catheter) was measured every 30 min till a successful 2 h weaning. RESULTS: A total of 18 patients were screened for eligibility over 5-month period and eight patients fulfilled the inclusion criteria. Sixty-three data points in these 8 subjects were available for analysis. A successful breathing trial was predicted by Edi reduction (1.22 μV for every 30 min increase in weaning duration; 0.69 μV for every day of weaning) and increase in diaphragm excursion (2.81 mm for every 30 min increase in weaning duration; 2.18 mm for every day of weaning). CONCLUSION: The Edi and diaphragm excursion changes can be used as additional objective tools in the decision-making of the weaning trials in neuromuscular disease. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s12028-020-01141-9) contains supplementary material, which is available to authorized users.
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10.1007/s12028-020-01141-9
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document_parses/pdf_json/b559e62206cacf58e67a08af1955551f3b0421cf.json
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document_parses/pmc_json/PMC7673684.xml.json
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Diaphragm Function Assessment During Spontaneous Breathing Trial in Patients with Neuromuscular Diseases
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