Migraine Dizziness and Orthostatic Intolerance OI

Orthostatic intolerance (OI) covers a spectrum of symptoms including presyncope and syncope, weakness and fatigue, tachycardia or palpitations, nausea, and difficulty concentrating. Symptoms can be aggravated by prolonged standing, physical exertion, environmental warming, post-prandial states, and menses. Diagnosis is based on history and results of heads-up tilt table testing. Orthostatic intolerance is a subset of dysautonomia. Common OI disorders include vasovagal response, cardioinhibitory...

Reminder on the Red Flags of Headache Diagnosis

As noted, in Part III diagnosis of secondary headaches will be covered. However, it is worth stating at the beginning that a workup of patients with red flags is necessary before diagnosing primary headaches. When in doubt, investigate the atypical. Table 1.3 The SNOOP mnemonic for red flags for secondary headache .Systemic symptoms (fever, weight loss) or .Secondary risk factors - underlying disease (HIV, cancer, autoimmune disease) Neurologic symptoms or abnormal signs (confusion, impaired...