Research tagged [psychiatry]

Differential Diagnosis and Management of Neuroleptic Malignant Syndrome and Serotonin Syndrome in Polypharmacy: A Clinical Case and Community Consensus

Neuroleptic Malignant Syndrome (NMS) and Serotonin Syndrome (SS) represent life-threatening adverse drug reactions with significant clinical overlap, posing a considerable diagnostic challenge, particularly in patients receiving multiple psychotropic medications. This paper presents a detailed analysis of a 45-year-old male on haloperidol and fluoxetine who developed severe hyperthermia, rigidity, altered mental status, and elevated creatine phosphokinase (CPK), necessitating urgent differentiation and management. Through a community peer-reviewed clinical discussion involving two verified physicians and 59 peer votes, a consensus was reached on diagnostic criteria and therapeutic strategies. Key distinguishing features identified included the presence of lead-pipe rigidity and bradykinetic facies, a significantly elevated CPK level (12,400 U/L, peaking at 18,000 U/L), and a subacute onset over several days, which collectively favored a diagnosis of NMS. Management involved immediate discontinuation of all suspected agents, aggressive supportive care including intravenous hydration and cooling, and the initiation of dantrolene. The patient demonstrated clinical improvement with normalization of temperature and mental status, and resolution of renal dysfunction. This case highlights the critical importance of meticulous clinical assessment and a structured approach to management in complex neuroleptic- and serotonergic-induced toxicities, emphasizing the utility of specific pharmacological interventions tailored to the suspected syndrome while maintaining robust supportive care.