Respiratory failure requiring mechanical ventilation has been reported in patients with bilateral diaphragmatic paralysis due to CIDP. We report a case of CIDP that progressed to respiratory failure with normal chest radiography despite unilateral diaphragmatic paralysis. This manifestation would have been missed if ultrasound was not employed.
Haji, K., Butler, E., & Royse, C. (2015). A case of chronic inflammatory demyelinating polyneuropathy with reversible alternating diaphragmatic paralysis: case study. Critical Ultrasound Journal, 7(1). https://doi.org/10.1186/s13089-015-0033-5