A case of remitting hemicrania continua with seasonal variation and clustering: a diagnostic confusion with cluster headache

Prakash, Sanjay; Rawat, Kalu Singh

doi:10.1136/bcr-2019-229650

Cited by 3 publications

(4 citation statements)

References 12 publications

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“…Table 2 lists the smoking exposure history of non-cluster headache TACs that have been previously published in the literature (14–16,23–48). Overall, this is very scant data.…”

Section: Resultsmentioning

confidence: 99%

“…Finally, for HC a total of 89 cases have been reported of which 19 cases had a personal smoking history or 21% (16,41–48). From the two largest studies (70% of all cases) only 11/62 or 18% smoked (16) (Table 2).…”

Section: Resultsmentioning

confidence: 99%

“…The largest study however did not note the sex of their patients who smoked (15). Finally, for HC a total of 89 cases have been reported of which 19 cases had a personal smoking history or 21% (16,(41)(42)(43)(44)(45)(46)(47)(48). From the two largest studies (70% of all cases) only 11/62 or 18% smoked (16) (Table 2).…”

Section: Previously Published Casesmentioning

confidence: 97%

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Cigarette smoking history (personal and secondary childhood exposure) in non-cluster headache trigeminal autonomic cephalalgias: A clinic based study

Rozen

2023

Cephalalgia

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Objective To look at cigarette smoking history (personal and secondary exposure as a child) in non-cluster headache trigeminal autonomic cephalalgias seen at a headache clinic and to determine smoking exposure prevalence utilizing previously published data. Methods Retrospective chart review and PubMed/Google Scholar search Results Forty-eight clinic patients met ICHD-3 criteria for non-cluster headache trigeminal autonomic cephalalgias. Four had paroxysmal hemicrania, 75% were smokers and secondary exposure was noted in all. 16 patients had short lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing (SUNCT) or short lasting unilateral neuralgiform headache attacks with autonomic symptoms (SUNA), 12.5% were smokers and secondary exposure was noted in 91%. Twenty-eight patients had hemicrania continua, 21% were smokers and secondary exposure was found in 62.5%. Since 1974 there have been 88 paroxysmal hemicrania, 50 SUNCT or SUNA and 89 hemicrania continua patients with a documented smoking exposure history. From current data and previous studies, a smoking history was noted in 60% paroxysmal hemicrania, 18% SUNCT and SUNA and 21% hemicrania continua patients. Conclusion A cigarette smoking history appears to be connected to paroxysmal hemicrania (personal and secondary exposure) and possibly to SUNCT/SUNA (secondary) and hemicrania continua (secondary).

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“…Table 2 lists the smoking exposure history of non-cluster headache TACs that have been previously published in the literature (14–16,23–48). Overall, this is very scant data.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Cigarette smoking history (personal and secondary childhood exposure) in non-cluster headache trigeminal autonomic cephalalgias: A clinic based study

Rozen

2023

Cephalalgia

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“…All of what we know about hemicrania continua comes from clinic-based studies (6,7), and among those with hemicrania continua, the relative frequencies of specific headache features or autonomic symptoms remain unclear (6,(8)(9)(10). A synthesis of the existing evidence is therefore needed to increase awareness among clinicians and facilitate a timely and correct diagnosis.…”

Section: Introductionmentioning

confidence: 99%

Prevalence and clinical features of hemicrania continua in clinic-based studies: A systematic review and meta-analysis

Al-Khazali

Iljazi

et al. 2023

Cephalalgia

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Objective To estimate the relative frequencies of hemicrania continua and its clinical features in adult patients who were evaluated for headache in a clinic-based setting. Methods PubMed and Embase were searched for observational, clinic-based studies published between 1 January 2004 and 1 February 2022, that reported on the relative frequencies of hemicrania continua and its clinical features. Two independent investigators (HMA and SA-K) screened titles, abstracts, and full text-articles. A random-effects meta-analysis was conducted to estimate pooled relative frequencies of hemicrania continua and its clinical features across clinic-based studies. Results Eleven clinic-based studies were deemed eligible for inclusion. Of these, eight studies reported on the relative frequency of hemicrania continua among adult patients (n = 9854) who were evaluated for headache in a tertiary care unit. The pooled relative frequency of hemicrania continua was found to be 1.8% (95% CI; 1.0–3.3). Considerable heterogeneity was noted across studies (I2 = 89.8%). The three most common symptoms associated with hemicrania continua were lacrimation (72.3%), conjunctival injection (69.8%), and restlessness/agitation (60.2%). Conclusion The findings of this meta-analysis suggest that there is limited epidemiologic data on the relative frequencies of hemicrania continua and its clinical features. Standardized data acquisition and reporting are needed to estimate prevalence rates more accurately and to better understand epidemiologic patterns. This, in turn, should increase awareness of the impact that hemicrania continua has in clinical practice.

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Hemicrania Continua

Prakash

Rawat

2021

Neurology India

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Background: Hemicrania continua (HC) is not uncommon in clinical practice, and several large case series have been published in the recent past. Objectives: This review provides an overview of the recent advancement in different aspects of HC. Methods: We reviewed the articles published on HC in the last 2 decades. Results: HC constitutes 1.7% of patients with headache in the clinics. It presents with unilateral continuous background pain with periodic exacerbations, usually accompanied by cranial autonomic features and restlessness. The continuous background headache is the most consistent and central feature of HC. Although the duration of exacerbations varies from a few seconds to a few weeks, the frequency ranges from >20 attacks/day to one attack in several months. The background pain is mild to moderate in intensity and does not hamper routine activity. Patients and physicians frequently ignore the basal pain, and a case of HC is misdiagnosed as other headaches, depending on the pattern of exacerbations. The exacerbation mimics several primary headaches and neuralgias. There are about 75 cases of secondary HC, due to 29 different pathologies. Although an absolute response to indomethacin is part of the diagnostic criteria, a subset of patients may respond to several other drugs. Headache reappears immediately on skipping a single dose of effective drug. Several surgical procedures have been tried in patients who are intolerant to indomethacin. Conclusion: Misdiagnosis of HC is common. Continuous background pain and response to indomethacin are two essential features for the diagnosis of HC.

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A case of remitting hemicrania continua with seasonal variation and clustering: a diagnostic confusion with cluster headache

Cited by 3 publications

References 12 publications

Cigarette smoking history (personal and secondary childhood exposure) in non-cluster headache trigeminal autonomic cephalalgias: A clinic based study

Cigarette smoking history (personal and secondary childhood exposure) in non-cluster headache trigeminal autonomic cephalalgias: A clinic based study

Prevalence and clinical features of hemicrania continua in clinic-based studies: A systematic review and meta-analysis

Hemicrania Continua

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