Reactions 1704, p360 - 2 Jun 2018 Cheyne-Stokes respiration and arrhythmia partially manifesting as sinus bradyarrhythmias: case report A 76-year-old man developed incessant Cheyne-Stokes respiration and arrhythmia partially manifesting as sinus bradyarrhythmias during treatment with ticagrelor [not all durations of treatments to reactions onsets stated]. The man presented to the emergency department with intermittent chest pain. His medical history was significant for type 2 diabetes mellitus and arterial hypertension. He had been receiving treatment with valsartan/hydrochlorothiazide and metformin. After admission, he underwent various investigations, and a diagnosis of heart failure and non-ST- segment elevation myocardial infarction along with chronic left ventricular dysfunction was made. Subsequently, he started receiving treatment with oral ticagrelor 180mg, atorvastatin and several other medications. About three hours after the ticagrelor administration, he suddenly complained of orthopnoea and dyspnoea. Respiratory monitoring and clinical examination at the ICU telemetry revealed a crescendo- decrescendo respiratory pattern mainly in supine position, along with hyperpnoeas, hyperventilation, apnoeas, oxygen desaturation (hypoxia) and hypercapnia. These findings strongly resembled with Cheyne-Stokes respiration. Additionally, pathological HR variability was noted, along with incessant phases of severe bradycardia, which were associated with hyperpnoeas. Also, sinus tachycardia associated with apnoeas was noted. During the bradycardia, many episodes of sinus pause were noted. Subsequently, vital signs were observed to be stable, and no further derangement in the left ventricular function was observed. The man was treated with continuous aminophylline infusion. After half-an-hour of the aminophylline infusion, he showed improvement in the dyspnoea. Also, he exhibited gradual resolution of the Cheyne-Stokes respiration and arrhythmias. The treatment with ticagrelor was then switched to clopidogrel. After the ticagrelor discontinuation, he did not show sinus bradycardia or pauses, and the respiration normalised completely. Author comment: "[T]he most common AEs of ticagrelor are . . .bradyarrhythmias". "To our knowledge, this is the first report of ticagrelor-related incessant [Cheyne-Stokes respiration]". "This case provides support for the use of aminophylline as a potential reversal agent of ticagrelor- induced arrhythmia". Conte L, et al. Reversal of ticagrelor-induced arrhythmias and cheyne-stokes respiration with aminophylline infusion. Journal of Cardiovascular Pharmacology 70: 290-292, No. 5, Nov 2017. Available from: URL: http://doi.org/10.1097/ FJC.0000000000000518 - Italy 803323100 0114-9954/18/1704-0001/$14.95 Adis © 2018 Springer International Publishing AG. All rights reserved Reactions 2 Jun 2018 No. 1704
Reactions Weekly – Springer Journals
Published: Jun 2, 2018
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