Lumbar iohexol myelography and diagnostic lumbar puncture. Headache and associated side effects in relation to neurological signs and diagnosis, previous mental symptoms and pain history

Various possible risk factors for postlumbar puncture (and postiohexol-myelographic) headache and associated side effects were analysed. Headache and nausea occurred significantly more often in patients without clinical findings than in those with findings. We found significantly different incidences of severe headache and nausea between diagnostic subgroups after a lumbar puncture. The greatest headache incidence was found in patients without a definite neurological diagnosis, while nausea occurred most frequently in patients with various painful disorders. Following iohexol myelography, nausea occurred most often in patients who had a history of previous mental symptoms and in patients with a history of previous headache disorders. Mental symptoms were more frequently reported in patients who also had experienced mental symptoms previously. The relationship between side effects and negative clinical findings was stronger than the relationship between side effects and previous mental symptoms.     

An evidence-based approach to hormonal contraception and headaches

Some controversy exists regarding contraceptive management in women with migraines, particularly migraines with aura. The available scientific literature indicates that combined hormonal contraception is safe with most headache subtypes. However, it should be avoided in women with migraine with aura and women with simple migraines who have other risk factors for stroke. Progestin only contraceptives as well as the copper intrauterine device can be safely used in women with migraines. Accurate classification of a patient's headache type can avoid unnecessary restriction of effective contraceptive methods, particularly those containing estrogen.     

Primary and secondary chronic cluster headache: two separate entities?

The International Headache Society (IHS) classification divides chronic cluster headache (CH) into two subtypes: chronic CH unremitting from onset (CCHU) and chronic CH evolved from episodic (CCHE). The purpose of our study was to point out any similarities and differences between the two chronic CH subtypes and to determine whether or not they can be considered as two separate clinical entities. We reviewed data about 31 CCHE patients and 38 CCHU patients referred to the Parma Headache Centre between 1975 and 1999. Clinically, CCHE patients exhibited statistically significant differences from CCHU patients, i.e. earlier CH onset and duration of attacks varying more frequently between 120 and 180 min. From the point of view of lifestyle, heavy alcohol and coffee drinkers prevailed among CCHU patients, while CCHE patients were more frequently heavy smokers. Based on clinical features, it seems reasonable to suppose that chronic CH may occur as two distinct entities.     

Possible predictive factors in the prognosis of migraine with aura

In order to identify possible predictive factors in the prognosis of migraine with aura (MA), we conducted a review at 10 to 20 years from referral on a sample of 77 MA patients (51 F, 26 M) consecutively seen for the first time at the University of Parma Headache Center. Based on the date of the last MA attack reported by these patients, we divided them into two study groups: a group of 22 patients "with remission of the disease," i.e. attack-free for at least 2 years at the end of the follow-up study; and a group of 55 patients "without remission of the disease," i.e. still having attacks in the last 2 years of the follow-up study. A comparative analysis of the MA clinical features observed in the two groups at the time of the patients' first visit to our Center enabled us to identify a number of favorable prognostic indicators, namely: a family history of parents with MA, the absence of other associated forms of primary headache, and the absence of both natural and artificial light stimulation as trigger factors.     

蛛网膜下腔出血剧烈头痛相关因素分析

目的　了解蛛网膜下腔出血 (SAH)后剧烈头痛的相关因素 ,探讨SAH性头痛发病机制 ,为头痛的治疗提供理论依据和途径。方法　制定头痛程度量表 ,根据CT分析SAH在颅内的分布情况以及脑压、脑脊液 (CSF)改变与头痛程度的关系。结果　CT显示阴性或阳性结果均出现剧烈头痛 ;SAH头痛程度与CSF发生血性质变有关 ,而与血性程度和出血部位无关 ;脑压在 30 0mmH2 O以下时 ,头痛加重不明显 ;当脑压升高超过 30 0mmH2 O时 ,头痛明显加重 (P <0 0 0 5 ) ;用地塞米松鞘内注射能显著改善头痛。结论　发生质变的血性CSF引起蛛网膜下腔广泛的炎性反应是导致头痛的重要原因 ,高颅压是SAH头痛的次要因素 ,出血量导致高颅压引起头痛 ,可能与头痛持续时间有关。     

International Headache Society classification: interobserver reliability in the diagnosis of primary headaches

We assessed interobserver reliability of the International Headache Society (IBIS) classification for diagnosis of primary headaches. The study was performed on 103 patients consecutively seen at two Headache Centres. Each patient was given a structured interview recorded on videotape. Four experienced clinicians then reviewed the interviews separately and made a diagnosis of headache according to IHS criteria at the one- and two-digit levels. At both the one- and the two-digit level the agreement was substantial (Kappa = 0.74 and 0.65, respectively). The analysis of reliability for each of nine items necessary for diagnosis showed an agreement ranging from substantial (Kappa = 0.69) to almost perfect (Kappa = 0.89). Our results indicate that the IHS classification has a good reliability for the diagnosis of primary headaches at the one- and two-digit levels.     

Post-traumatic headache: from classification challenges to biological underpinnings

The ICHD-II criteria for post-traumatic headache (PTH) are strictly outlined. PTH can be subdivided into an acute and a chronic forms, the former likely nociceptive in nature, the latter likely neuropathic. The time of transition between the acute and the chronic forms is artificial and in the future should be better based on clear clinical or rather biological data. Chronic PTH often presents as one of the primary headache syndromes, e.g. migraine or tension-type headache. Its biology is poorly understood and whether it merely represents the expression of the primary headache or it has a distinct pathogenesis remains unclear. The frontal lobe is often affected in traumatic head injury. Its dysfunction can cause an array of clinical consequences that have an impact on the patient's symptomatology and therapeutic outcome. Its recognition is likely to improve patient management quality.