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Thiamine (vitamin B1) deficiency is a common condition in alcohol abusers, which can lead to damage of both the peripheral and the central nervous systems. Here we describe the case of an alcoholic patient who presented with acute onset of ataxia, severe weakness of the four limbs, and hypoesthesia and dysesthesia of the distal portion of the upper and lower extremities. The clinical picture also included mental confusion and amnesia. A diagnosis of Wernicke-Korsakoff syndrome was made based on clinical symptoms and brain RMI findings. Electromyography and electroneurography revealed signs of subacute axonal sensory-motor polyneuropathy that were compatible with a rare acute presentation of beriberi. Patient immediately received parenteral thiamine administration, which resulted in rapid clinical amelioration of ataxia and confusion and also in a significant improvement of motor and sensory deficits. The association between Wernicke-Korsakoff syndrome and acute axonal polyneuropathy is a very rare condition that could make less recognizable the clinical picture of a thiamine deficiency. However, the diagnosis of thiamine deficiency should be suspected in every alcoholic patient presenting with acute onset symptoms of central and/or peripheral nervous system involvement. This because the immediate replacement treatment can be life-saving and reverse the clinical symptoms., (Copyright © 2017 Elsevier B.V. All rights reserved.)

A 34-year-old alcoholic man had neurological and cardiac symptoms. The patient was admitted to the hospital for acute painful sensory disturbances and severe weakness of the feet. Neurological and electrophysiological investigation revealed axonal sensorimotor polyneuropathy that was most prominent in the legs. Cardiac assessment showed signs and symptoms of heart failure due to a high-output state. Blood analysis showed a low thiamine concentration of 58 nmol/l (lower reference limit: 80). Therefore, a diagnosis of combined wet beriberi with cardiomyopathy and dry beriberi with axonal polyneuropathy was made. The treatment of beriberi is simple and effective and consists of thiamine supplementation in conjunction with diuretic treatment. With this approach, the patient recovered fully. Patients with beriberi have a good prognosis, particularly when the diagnosis is made at an early stage.