Migraine with Aura Dr Jill Zelin for Prof Anne MacGregor Barts Health NHS Trust & Barts and the London School of Medicine and Dentistry www.annemacgregor.com UK.PH.GM.X.2012.042d April 2012 Overview • What is migraine? • What are the risks of hormonal contraception in women with migraine? • What are the effects of hormonal contraceptives on migraine? Do you have the following with your headaches? • Light bothers you more than usual? • Your headaches limit your ability to work, study or do what you need to do for at least one day? • You feel nauseated or sick? Lipton et al Neurology 2003;61:375-82 Do you have the following with your headaches? • Light bothers you more than usual? • Your headaches limit your ability to work, study or do what you need to do for at least one day? • You feel nauseated or sick? Positive predictive value for migraine diagnosis: 2 positive answers – PPV = 93% 3 positive answers - PPV = 98% Lipton et al Neurology 2003;61:375-82 Migraine Migraine without aura • 70-80% attacks Migraine with aura • 20-30% attacks • 1% without headache Is it aura? When does a migraine start? headache anorexia/nausea/vomiting malaise/ lethargy food craving tired/yawning sensitive to light/sound vomiting sleep drugs heightened sense of smell heightened perception limited food tolerance tired hungover difficulty focusing diuresis poor concentration fluid retention normal I premonitory 2-24 hrs II aura <1 hr III headache 4-72 hrs IV resolution V recovery 2-12 hrs 2-24 hrs normal Blau JN Lancet 1992;339:1202-7 Premonitory visual symptoms VAS rating of state of health 100 28% reported blurred vision 49% reported light sensitivity 80 premonitory 60 headache 40 20 0 hours -150 -100 -50 0 50 100 Giffin N et al Neurology 2003;60:935-40 Migraine aura • 99% visual • Scintillating scotoma • Important points – Relationship to headache • Starts before • Resolves before – Duration • Lasts less than 60 minutes - typically 20-30 mins – Symptoms are specific Diagnosis • Do you ever have visual disturbances – Starting before the headache?* – Lasting up to one hour? – Resolving before the headache?* *Headache may be very very mild Migraine aura and ischaemic stroke • Migraine aura is a marker for increased risk of ischemic stroke in young women • Associated with increased risk of – – – – Diabetes High cholesterol Hypertension Smoking Progestogen-only contraception • Not associated with any significant alteration in haemostasis • Not associated with an increased risk of ischaemic stroke Tzourio et al BMJ 1995;310:830-3 WHO Contraception 1998;57:315-24 Heinemann et al Eur J Contracept Reprod Health Care 1999;4:67-73 CHCs and ischaemic stroke • Prothrombotic effect • Increased risk of ischemic stroke in current users of low dose pills (<50 mcg EE) – RR 1.93 (95% CI = 1.35-2.74) • Avoid additional factors that increase risk Gillum et al JAMA 2000;284:72-8 UK medical eligibility criteria (UKMEC) UKMEC 2009 www.fsrh.org What effects do hormonal contraceptives have on migraine? Oestrogen and migraine • Oestrogen ‘withdrawal’ – migraine without aura • ‘menstrual’ migraine • migraine in the hormone-free interval of CHCs • High levels of oestrogen – migraine with aura • during CHC use • pregnancy • HRT Migraine during the hormone-free interval • Natural oestrogen supplements during HFI – 100mcg patch on last day of pill packet – Replace on 4th day of hormone-free interval – Remove on 1st day of next packet • Three day hormone-free interval • Tricycle • Continuous (break with the bleed) MacGregor EA, Hackshaw A J Fam Plann Reprod Healthcare 2002; 28:27-31 Calhoun A, Ford S Headache 2008;48:1186-1193 Sulak PJ et al Am J Obstet Gynecol 2002;186:1142-9 LaGuardia KD et al Fertil Steril 2005;83:1875-7 Summary • Migraine aura is a marker of increased risk of ischemic stroke • Contraceptive use of CHCs contraindicated for women with migraine aura • CHCs can be beneficial for migraine without aura! www.bash.org.uk