Migraine, Cluster, and Tension Headaches
Headache may be classified as primary or secondary. Primary headaches have no associated underlying pathologic abnormalities. The principal primary headaches include cluster, migraine, and tension-type headaches. These syndromes constitute more than 90% of primary headaches. Some patients develop analgesic-withdrawal or rebound headaches. Secondary headaches are due to metabolic, structural, or pathologic causes such as lesions that increase intracranial pressure, vasculitis, thrombosis of brain sinuses and veins, or pseudotumor cerebri. Diagnosis of headache requires a thorough history with a detailed physical examination. History should include the onset and description of headache, location, frequency, duration, any associated symptoms, any prodromal features or aura, family history, and medication history.
Tension-type headache is usually bilateral in location, bifrontal, bioccipital or cervical. It is described as a tight aching band that is squeezing and pressing, with no prodrome or aura. Episodic tension headache usually lasts 30 minutes to a few hours; rarely it can last days. Tension headaches are best managed with acetaminophen, NSAIDs, massage therapy, heat, and rest. Preventive measures such as smoking cessation, regular exercise, and reducing alcohol and caffeine intake may be useful.
Cluster headache is usually unilateral in location and does not include an aura. Onset of the headache is frequently in the fourth or fifth decade of life. It is generally orbito-temporal, excruciating, and penetrating with possible ipsilateral ptosis, miosis, red eyes, nasal congestion, and sweating of the face. Patients may have a sense of restlessness, agitation with frenetic pacing, and rocking movements. Cluster headaches occur more frequently in males than females, whereas migraine headaches, and sometimes tension headaches, occur more commonly in females than males. Triptans such as sumatriptan, especially the injectable form, are used to treat acute cluster headache. Briefly inhaling 100% oxygen provides dramatic improvement for cluster headache. Preventive medications for cluster headaches include topiramate, lithium carbonate, and calcium channel blockers such as verapamil.
Migraine headache is an intense, throbbing or pulsating sensation lasting several hours or even days. The pain may be disabling, sometimes limiting physical activities. It may be associated with menstruation and changes in mood, appetite, or energy. Migraine headache can often be associated with nausea, vomiting, photophobia, phonophobia, or behavioral changes. It may or may not include aura, which is a sensory disturbance that precedes the headache. Triggers for migraine headache can include stress, lack of sleep, certain medications (oral contraceptive pills, vasodilators like nitroglycerin), changes in hormones, diet, diet additives, and weather. The intensity and frequency of migraine headaches tend to decrease after menopause. Migraine headache may be treated with acetaminophen, non-steroidal anti-inflammatory drugs (NSAIDs), amitriptyline, triptans, ergots, narcotics, butalbital, calcium channel blockers, or beta-blockers. Adjunctive treatment for migraine may include non-pharmacologic options such as exercise and avoiding precipitating factors.
A secondary headache is different from primary because there is usually an underlying medical condition. The differential diagnosis includes severe hypertension, tumors of the central nervous system, infection or inflammation of the head and neck region, head injury, subdural hematoma, subarachnoid hemorrhage, or hydrocephalus. Red flags for secondary headaches include: first or worst headache of the patient’s life; headache beginning at extremes of age (< 5 years and >50 years); headache associated with sex, exertion, cough, sneeze, or Valsalva; human immunodeficiency virus (HIV); pregnancy or headache with seizure; syncope; or the presence of cancer. Patients with any of these red flags need evaluation.
Preeclampsia should be considered in women over 20 weeks of gestation and women in the peripartum and postpartum period with new-onset headache.
[No authors listed], ACOG Committee Opinion No. 767: Emergent Therapy for Acute-Onset, Severe Hypertension During Pregnancy and the Postpartum Period. Obstet Gynecol. 2019 Feb;133(2):e174-e180. doi: 10.1097/AOG.0000000000003075.
International Headache Society (IHS). www.ihs-headache.org/
Olesen J, Tfelt-Hansen P, Ramadan N, Goadsby PJ, Welch KMA. The headaches. Philadelphia: Lippincott, Williams, and Wilkins, 2006.
Initial Approval May 2019, Published June 2019, Revised January 2021
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