Uhthoff’s phenomenon in a patient with multiple sclerosis during the perioperative period for hip surgery. Case report
Increase in body temperature is associated with neurological deficit exacerbations in patients with multiple sclerosis (MS). These are corrected with the resolution of hyperthermia, in what is known as Uhthoff's phenomenon. A 65-year-old patient with primary progressive MS, admitted because of hip fracture, developed acute respiratory failure in association with elevation in body temperature (38 °C) due to an increase in room temperature. Additional tests ruled out infection, pulmonary thromboembolism, or other concomitant processes. The patient's respiratory condition improved following a change in room temperature and the use of pharmacological treatment for hyperthermia. She was taken to surgery under general anesthesia 3 days after admission, with tight temperature monitoring, and surgery proceeded uneventfully. Anesthetic management in patients with MS is important, requiring close control of body temperature to avoid comorbidities and perioperative complications.
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