Abstract
We report the diagnostic and management challenges encountered in a case of a 57-year-old male patient with bipolar I disorder and comorbid polycythemia secondary to obstructive sleep apnea, who was treated in our inpatient psychiatric unit for suicidal ideation and recurrent catatonia. He was found to have catatonia with a Bush–Francis Catatonia Rating Scale score of 18. He subsequently exhibited a positive response to the lorazepam challenge test. Before discharge, his daily lorazepam dose was titrated to 6 mg, which led to resolution of catatonic symptoms, and was tapered to discontinuation. During the second hospitalization, the patient’s catatonia returned, but due to lorazepam-induced bradycardia, he refrained from taking more than 1 mg of the medication. Divalproex sodium and memantine were initiated as off-label catatonic treatment plus lurasidone for bipolar depression. The patient was also found to have a positive antinuclear antibody titer (1:160). The hemato-immunological abnormalities present in our patient complicated his catatonic condition, underscoring the need to explore medical and neuropsychiatric catatonic factors for accurate diagnosis of this neuropsychiatric syndrome.
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