This study confirmed the effectiveness of treatment with OnabotulinumtoxinA after 1 year of treatment. The chances of a good outcome may be increased by starting treatment in the first 12 months after chronic migraine diagnosis.

Sexual headaches usually develop during orgasm. Stroke complicating is rare. We report the case of a young man and heavy cannabis smoker who suffered posterior cerebral artery infarction during his first episode of coital headache.

The aim of this study was to evaluate self-reported periodontitis (PD) prevalence in migraineurs as well as to investigate the association between both diseases. A crosssectional survey was carried out including patients diagnosed with migraine attending 12 Spanish Headache Units. We determined diagnosis of PD administering a validated selfreported questionnaire. Socio-demographic, clinical and medical information, comorbidities, daily habits, migraine characteristics and medication were collected using a questionnaire. Of the 651 consecutive migraineurs included in the study, 393 suffered from chronic migraine (CM). Self-reported PD was detected in 327 patients with migraine (50.2%). Migraineurs with self-reported PD were significantly older and had a previous history of fibromyalgia, stress, anxiety, depression, and allodynia (all P<0.001). Additionally, this group of patients consumed more topiramate (P=0.008) and simple analgesics (P<0.001) than patients with migraine and without self-reported PD. Also they were less active physically and belonged to a low education level (both P<0.001). Prevalence of self-reported PD was significantly higher in chronic migraineurs compared to those diagnosed with episodic migraine (EM) (53.9% vs. 44.6%, P=0.019). Logistic regression analyses showed that self-reported PD was associated with CM (OR=1.456; 95%CI:1.062-1.997, P=0.020). However, after adjusting for significant confounders, the association was attenuated (OR=1.100; 95%CI:0.784-1.543, P=0.581). We concluded that self-reported PD was significantly more frequent in CM as compared to EM. Self-reported PD was associated with the presence of CM, although some co-morbidities shared by both diseases could have an effect in this association.

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