Respiratory Dysfunction in Sleep Apnea Associated with Quetiapine

 

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Abstract

Quetiapine is an atypical antipsychotic with good tolerability, but has recently been associated with respiratory dysfunction. The aim of this work is to report on moderate to severe respiratory dysfunction after normal oral doses of quetiapine in two obese patients with sleep apnea syndrome (SAS). In the first case, acute respiratory failure and coma occurred after a single normal oral dose of quetiapine in combination with lorazepam (although even higher doses of lorazepam alone were tolerated) in a patient with previously unknown SAS. Intensive care treatment and mechanical ventilation led to full recovery. The second case was a patient with an operated obstructive SAS in which quetiapine was associated with nocturnal respiratory dysfunction and confusion. Respiratory function should be monitored when using quetiapine in patients with possible sleep apnea, particularly in obese patients and when given in combination with benzodiazepines.

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Correspondence

Dr. med. C. Schönfeldt-LecuonaMD 

Department of Psychiatry and Psychotherapy III

University of Ulm

Leimgrubenweg 12

89075 Ulm

Germany

Phone: +49/731/500 61 41 1

Fax: +49/731/500 61 41 2

Email: carlos.schoenfeldt@uni-ulm.de