Use of pressure dynamometer in the assessment of the pressure pain threshold in trigger points in the craniocervical muscles in women with unilateral migraine and tension-type headache: An observational study

Has the Phase of the Menstrual Cycle Been Considered in Studies Investigating Pressure Pain Sensitivity in Migraine and Tension-Type Headache: A Scoping Review

“…After reading the full-text of the remaining 43 studies, the last 13 were excluded because: results were not provided by TTH or migraine [ 31 , 32 , 33 , 34 ], text did not provide the required data [ 35 ], they were experimental-induced pain models [ 36 , 37 , 38 ], it was written in Korean [ 39 ], results were not separated by gender [ 40 , 41 , 42 ], or PPT was not assessed with an algometer or dynamometer [ 43 ]. Finally, 30 studies satisfied all inclusion criteria and were included in the review of TTH ( Figure 1 ) [ 6 , 7 , 8 , 9 , 10 , 11 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 ].…”

“…The total sample of patients with TTH included in the studies was 1525 (986 women, 64.6%). A large number of women (≥50% of the sample) participated in the majority of the studies ( n = 27, 93.34%) [ 6 , 8 , 9 , 10 , 11 , 23 , 44 , 45 , 46 , 47 , 48 , 50 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 ], except for just three where more males than females participated [ 48 , 51 , 67 ]. Six articles only recruited women [ 8 , 9 , 10 , 11 , 44 , 61 ].…”

“…The mean age of the sample was 38.8 years (SD 9.15, range from 18 to 76 years). Most of the selected studies used a pressure algometer, except for two studies using a dynamometer [ 9 , 62 ]. A headache diary [ 80 ] was used in fourteen articles to confirm the diagnosis of TTH or collect the clinical features of headache [ 10 , 11 , 15 , 44 , 45 , 47 , 48 , 49 , 50 , 51 , 53 , 54 , 64 , 65 ].…”

“…Patients with TTH were recruited from specific headache centres [ 64 ], random sampling from the general population [ 55 , 66 ], Danish Civil Registration [ 67 ], university centres or student population [ 9 , 44 , 45 , 46 ], advertisements in local media or newspapers [ 6 , 10 , 45 , 47 , 58 , 63 ], regular hospitals [ 9 , 11 , 48 , 49 , 50 , 51 , 56 ], outpatient clinics [ 52 , 53 , 54 , 57 , 59 , 65 ], tertiary care hospital [ 8 ], and university centres of ageing [ 63 ].…”

“…Both headaches feature the presence of pressure pain hyperalgesia [ 4 , 5 ]. This assumption is based on the results from several studies investigating sensitivity to pressure pain in both TTH [ 5 , 6 , 7 , 8 , 9 , 10 , 11 ] and migraine [ 12 , 13 , 14 , 15 ]. Additionally, migraine is also characterized by an increased sensitivity to visual or auditory stimulus during but also outside of the headache attack [ 4 , 16 ].…”