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Table 1 Patients with headache attack during hemodialysis and diagnosis of hemodialysis-related headache

From: Association of intradialysis blood sodium level, blood pressure variability, and hydration status with hemodialysis-related headache: a prospective cohort study

Cases

HD with headache among 12 HD sessions no. (%)

Mean time to develop headache after the start of HD

Mean headache duration during HD

Mean whole

headache duration

Meets definition of HRHa

Case 1

3 (25.0)

200 min

40 min

70 min

Yes

Case 2

2 (16.7)

60 min

180 min

180 min

No

Case 3

4 (33.3)

180 min

60 min

120 min

Yes

Case 4

4 (33.3)

120 min

120 min

120 min

Yes

Case 5

2 (16.7)

180 min

60 min

90 min

No

Case 6

3 (25.0)

120 min

120 min

120 min

Yes

Case 7

8 (66.7)

92 min

120 min

315 min

Yes

Case 8

4 (33.3)

0 min

240 min

690 min

Yes

Case 9

4 (33.3)

60 min

60 min

60 min

Yes

Case 10

5 (41.7)

30 min

30 min

30 min

Yes

Case 11

2 (16.7)

60 min

30 min

30 min

No

Case 12

1 (8.3)

0 min

240 min

240 min

No

  1. Abbreviations: HD hemodialysis, HRH hemodialysis-related headache
  2. aAccording to the ICHD-III criteria (ICHD-3 code 10.2), HRH is defined as having at least three headache episodes that start during HD and resolve within 72 h of HD session completion