Cibenzoline-induced respiratory muscular paralysis in a hemodialysis patient |
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Authors: | Kazuhiko Tsuruya Atsumi Harada Shinji Kubo Kouji Mitsuiki Kazuhito Takeda |
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Affiliation: | (1) Kidney Center, Matsuyama Red Cross Hospital, 1 Bunkyo-cho, 790 Matsuyama, Japan |
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Abstract: | A 69-year-old man was admitted to our kidney center with endstage renal failure. We started intermittent peritoneal dialysis
immediately because of severe azotemia, hyperkalemia, and metabolic acidosis. Two weeks after admission, he developed uremic
pericarditis with frequent ventricular premature contractions and supraventricular premature contractions. The intermittent
peritoneal dialysis was then replaced by intensive hemodialysis, and oral administration of 300 mg/d of cibenzoline was started.
Four days later, he developed thirst, weakness, and dyspnea due to respiratory muscular paralysis. We initiated respiratory
support with a respirator because analysis of his blood gases revealed marked hypercapnia and hypoxia. He also developed hypoglycemia
and prolonged PQ and QRS intervals on the electrocardiogram, which we believed were due to cibenzoline intoxication; we discontinued
the cibenzoline immediately. All symptoms improved, and he was extubated 5 days later. After 2 months, his pericardial effusion
disappeared. He now continues maintenance hemodialysis as an outpatient. We suspect that the cibenzoline induced the respiratory
muscular paralysis for 2 reasons: 1) the patient experienced the respiratory muscular paralysis, at the same time he also
experienced thirst, weakness, hypoglycemia, and prolonged PQ and QRS intervals on electrocardiogram, and all of these symptoms
improved after the discontinuation of cibenzoline, and 2) his plasma concentration of cibenzoline became remarkably elevated,
to 20 times above the standard therapeutic level. This patient's clinical course indicates that hemodialysis might be superior
to intermittent peritoneal dialysis for treatment of cibenzoline intoxication. |
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Keywords: | cibenzoline respiratory muscular paralysis endstage renal failure overdose |
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