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Background <p>Primary headache associate with sexual activity (PHASA) is a relatively rare clinical condition and characterized by thunderclap headache exclusively triggered by sexual activity. The suggested involvement of autonomic dysfunction with altered cerebrovascular tone may contribute to the underlying mechanism of PHASA. However, the utilization of head-up tilt test (HUT), a valuable tool for assessing autonomic function, has not been employed in patients with PHASA.</p> Case presentation <p>We present a typical case of PHASA with positive HUT response.</p> Conclusion <p>Autonomic dysfunction and compensatory vasodilation due to cerebrovascular autoregulation may be part of the mechanism of PHASA.</p>

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Autonomic dysfunction in a patient with primary headache associated with sexual activity: case report and literature review

  • 期刊论文

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  • 发表日期：

    2025年4月10日

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  • Yimo Zhang,
  • Hairong Qian,
  • Shengyuan Yu

摘要

Background

Primary headache associate with sexual activity (PHASA) is a relatively rare clinical condition and characterized by thunderclap headache exclusively triggered by sexual activity. The suggested involvement of autonomic dysfunction with altered cerebrovascular tone may contribute to the underlying mechanism of PHASA. However, the utilization of head-up tilt test (HUT), a valuable tool for assessing autonomic function, has not been employed in patients with PHASA.

Case presentation

We present a typical case of PHASA with positive HUT response.

Conclusion

Autonomic dysfunction and compensatory vasodilation due to cerebrovascular autoregulation may be part of the mechanism of PHASA.