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Table 3 Qualitative analysis of changes in CH attack frequency, duration, and severity with nVNS therapy

From: Non-invasive vagus nerve stimulation for treatment of cluster headache: early UK clinical experience

 

No. (%) of Patients

Decrease

No Change

Increase

Frequency

25a (83)

5 (17)

0

Durationb

17 (65)

7 (27)

2 (8)

Severityc

17 (74)

5 (22)

1 (4)

  1. aIncluded 3 patients who had no CH attacks during the evaluation period
  2. b26 patients had available qualitative data on attack duration
  3. c23 patients had available qualitative data on attack severity
  4. Abbreviations: CH cluster headache, nVNS non-invasive vagus nerve stimulation
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The Journal of Headache and Pain

ISSN: 1129-2377

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