Inquest into the Death of Stanley KING
Deceased
Stanley KING
Demographics
45y, male
Date of death
2015-05-22
Finding date
2018-07-16
Cause of death
Cardiorespiratory arrest due to coronary artery disease, severe psychosis requiring antipsychotic treatment triggering laryngeal dystonia, and obesity
AI-generated summary
Stanley King, a 45-year-old man with severe psychosis, coronary artery disease, and obesity, died from cardiorespiratory arrest triggered by antipsychotic-induced laryngeal dystonia. Admitted involuntarily for acute psychotic relapse, he experienced respiratory distress from laryngeal-lingual dystonia caused by antipsychotic medications (zuclopenthixol and chlorpromazine). Despite treatment with benztropine and cessation of antipsychotics, he suffered ongoing upper airway obstruction. Critical lessons include: (1) the distinction between inspiratory and expiratory breathing difficulty is diagnostically crucial for recognising laryngeal dystonia; (2) dystonic reactions can be erratic and persist after medication withdrawal; (3) voice changes and high-pitched inspiratory breathing are significant warning signs; (4) clinicians unfamiliar with laryngeal dystonia may misattribute symptoms to asthma or anaphylaxis; (5) a penicillin-allergic patient was incorrectly prescribed Augmentin. Early recognition of upper airway dystonia and proactive airway support before arrest could potentially have changed the outcome.
AI-generated summary and tagging — may contain inaccuracies; refer to original finding for legal purposes.
Error types
Drugs involved
Clinical conditions
Contributing factors
- Antipsychotic-induced laryngeal-lingual dystonia
- Severe psychosis requiring sedation and antipsychotics
- Underlying moderately severe coronary artery disease with focal atherosclerosis
- Obesity
- Erratic and unpredictable presentation of laryngeal dystonia
- Inadequate recognition of upper airway obstruction by most clinicians
- Respiratory distress not fully appreciated as laryngeal dystonia
- Medication non-compliance leading to acute psychotic relapse
- Unclear diagnosis leading to treatment of multiple potential causes (asthma, anaphylaxis)
Coroner's recommendations
- Those caring for patients treated with antipsychotic medication should be trained to record in clinical notes whether any noted breathing difficulty relates to inspiration or expiration, as this distinction provides a diagnostic tool in recognising potential laryngeal dystonia and prompting medication and intensive breathing support prior to arrest.
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