PMC7347366_01
A, B, C. Diagnostic test - Home respiratory polygraphy performed in July 2007: respiratory pattern with recurrent central apneas and Cheyne Stokes pattern.
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The exam revealed an apnea/hypopnea index (AHI) of 28.1/h and central apnea index (CAI) of 8.3/h (Figure 1).
A, B, C. Revaluation sleep test (after heart transplantation). Overnight polysomnography performed in October 2017: respiratory pattern with occasional respiratory effort related arousals.
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During 2017, a revaluation sleep study revealed an RDI of 16.9/h with CAI of 0/h (Figure 2).