Rare sensory and autonomic disturbances associated with vitamin B12 deficiency

The Neurological Complications of Nutritional Deficiency following Bariatric Surgery

“…Neurologic symptoms commonly seen with B 12 deficiency include paresthesias, weakness, decreased reflexes, spasticity, ataxia, position and vibratory sense loss, incontinence, loss of vision from optic nerve injury, dementia, psychosis, and altered mood [19, 20]. Severe autonomic symptoms may also rarely occur [21]. The initiation of vitamin B 12 supplementation within 6 months postoperatively is recommended by most surgical groups in the absence of controlled studies.…”

Rare Association Between Pernicious Anemia and Neurogenic Bladder – A Case Report and Literature Review

“…15 A functional radiologic clinical study developed in India 17 showed that 29.6% of patients with SCD had symptoms pertaining to voiding or storage symptoms or both. The authors concluded that urodynamic study revealed neurogenic detrusor overactivity with high pressure voiding and detrusor areflexia which improve on vitamin B 12 therapy.…”

“…Analysing the administration route of vitamin B 12 in our literature review, all case-reports used cobalamin intramuscular in an almost standardized dose (1000 ìg daily for 7 days, followed by 1000 ìg weekly for 3 weeks and 1000 ìg monthly thereafter) 15 with little differences. Nevertheless, some recent evidences are favorable to oral vitamin B 12 replacement.…”

Vitamin B12 deficiency: an unusual cause of vocal fold palsy

“…3 Depression, psychosis and dementia have also been associated with vitamin B 12 deficiency. 4 Neuropathies such as motor sensory polyneuropathy, cranial nerve mononeuropathy (optic and olfactory) and autonomic neuropathies (impotence, or urinary or faecal incontinence) have also been well described. 1,[5][6][7][8][9] Cranial nerve neuropathies secondary to vitamin B 12 deficiency are relatively uncommon, other than optic nerve cases.…”