Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke · 2023
[A man in his fifties with near-syncope episodes and persistent dizziness].
Клинический случайАннотация на английскомСтатьяНазвание и аннотация: Перевод в очереди
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Nes Magne Solberg, Vedeler Christian A
Аннотация
BACKGROUND: A previously healthy male patient in his fifties presented with subacute onset of severe, diffuse dysautonomia with orthostatic hypotension as the main symptom. A lengthy interdisciplinary workup revealed a rare condition.
CASE PRESENTATION: Over the course of a year, the patient was twice admitted to the local department of internal medicine because of severe hypotension. Testing showed severe orthostatic hypotension with normal cardiac function tests and no apparent underlying cause. On referral to neurological examination, symptoms of a broader autonomic dysfunction were discovered, with symptoms of xerostomia, irregular bowel habits, anhidrosis and erectile dysfunction. The neurological examination was normal, except for bilateral mydriatic pupils. The patient was tested for ganglionic acetylcholine receptor (gAChR) antibodies. A strong positive result confirmed the diagnosis of autoimmune autonomic ganglionopathy. There were no signs of underlying malignancy. The patient received induction treatment with intravenous immunoglobulin and later maintenance treatment with rituximab, resulting in significant clinical improvement.
INTERPRETATION: Autoimmune autonomic ganglionopathy is a rare but likely underdiagnosed condition, which may cause limited or widespread autonomic failure. Approximately half of the patients have ganglionic acetylcholine receptor antibodies in serum. It is important to diagnose the condition as it can cause high morbidity and mortality, but responds to immunotherapy.
CASE PRESENTATION: Over the course of a year, the patient was twice admitted to the local department of internal medicine because of severe hypotension. Testing showed severe orthostatic hypotension with normal cardiac function tests and no apparent underlying cause. On referral to neurological examination, symptoms of a broader autonomic dysfunction were discovered, with symptoms of xerostomia, irregular bowel habits, anhidrosis and erectile dysfunction. The neurological examination was normal, except for bilateral mydriatic pupils. The patient was tested for ganglionic acetylcholine receptor (gAChR) antibodies. A strong positive result confirmed the diagnosis of autoimmune autonomic ganglionopathy. There were no signs of underlying malignancy. The patient received induction treatment with intravenous immunoglobulin and later maintenance treatment with rituximab, resulting in significant clinical improvement.
INTERPRETATION: Autoimmune autonomic ganglionopathy is a rare but likely underdiagnosed condition, which may cause limited or widespread autonomic failure. Approximately half of the patients have ganglionic acetylcholine receptor antibodies in serum. It is important to diagnose the condition as it can cause high morbidity and mortality, but responds to immunotherapy.