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Table 1 Videomanometry variables, all of them in sagittal projection except 1–3

From: Treatment of cricopharyngeal dysfunction: a comparative pilot study

  Preop Post1 Post2 P value P-value treat
Frontal UES diam.by CPM 9.9 10.6 10.0 0.68 0.78
Frontal UES diam.15 mm over CPM 20.5 20.7 18.7 0.49 0.63
Frontal UES diam.15 mm under CPM 12.0 12.1 13.1 0.21 0.03
UES diam.by the CPM 5.6 7.6 8.4 0.008 0.86
UES diam.15 mm over CPM 13.3 15.2 16.7 0.05 0.29
UES diam.15 mm under CPM 9.6 9.9 11.5 0.16 0.39
Maximal hyoid movement 1 10.9 10.2 11.0 0.77 0.32
Maximal hyoid movement 2 12.5 14.5 16.3 0.11 0.28
Maximal hyoid movement 3 16.5 17.5 18.2 0.67 0.20
Maximal laryngeal elevation 21.4 22.7 24.5 0.61 0.36
Resting UES pressure 65.0 54.4 56.0 0.60 0.92
Residual pressure UES relax dry 3.0 1.3 2.5 0.42 0.54
Residual pressure UES relax wet 3.0 1.3 4.6 0.80 0.73
Duration of UES relax dry 0.5 0.5 0.5 0.68 0.85
Duration of UES relax wet 0.7 0.6 0.7 0.50 0.50
UES contraction pressure 280.0 275.0 293.0 0.95 0.60
Intrabolus pressure 49.0 34.0
Pharyngeal pressure 292.0 302.6 184.0 0.13 0.37
Tongue base pressure 261.0 241.0 187.0 0.02 0.63
Oesophagus amplitude 77.0 82.0 83.0 0.53 0.09
  1. Diameter is measured in mm and pressure in mm Hg. P-value = within subjects, P-value treat = difference between treatments. Maximal hyoid movement is hyoid’s elevation (=maximal hyoid movement 1) followed by a ventral movement (=maximal hyoid movement 2). The diagonal line between the resting position and maximal cranioventral movement is the maximal hyoid movement 3.
  2. CPM cricopharyngeus muscle, Preop pre-operatively, Post1 1 month post-operatively, Post2 6 months post-operatively, UES upper oesophageal sphincter.