HSC Section 6 Nov2016 Green Book

Journal of Voice, Vol. 28, No. 2, 2014

TABLE 1. Stroboscopic Signs for Patients With Mild Dysplasia Before Treatment and After 12 Months of Follow-Up or Before Retreatment

Mild Dysplasia

Stroboscopic Signs

Before Treatment (%)

After 12 Months (%)

Sig.

Glottic occlusion

0.791

Sufficient Insufficient

38/53 (71.7) 15/53 (28.3)

40/53 (75.5) 13/53 (24.5)

Phase symmetry

0.000*

Symmetrical Asymmetrical

6/53 (11.3) 47/53 (88.7)

36/53 (67.9) 17/53 (32.1)

Periodicity

0.000*

Regular Irregular

6/53 (11.3) 47/53 (88.7)

36/53 (67.9) 17/53 (32.1)

Amplitude

0.000*

Normal

10/53 (18.9) 25/53 (47.1) 18/53 (34) 13/53 (24.5) 32/53 (60.4) 8/53 (15.1)

35/53 (66) 14/53 (26.4)

Decreased Increased

4/53 (7.6)

Mucosal wave

0.000*

Normal with 30–50% lateral travel

35/53 (66) 17/53 (32.1)

Increased with lateral travel greater than 50% Decreased with lateral travel less than 30%

1/53 (1.9)

Nonvibratory segment

1.000

Presence Absence

8/53 (15.1) 45/53 (84.9)

9/53 (17.0) 44/53 (83.0)

Abbreviation: Sig., statistical significance. * P < 0.05.

TABLE 2. Stroboscopic Signs for Patients With Moderate Dysplasia Before Treatment and After 12 Months of Follow-Up or Before Retreatment

Moderate Dysplasia

Stroboscopic Signs

Before Treatment (%)

After 12 Months (%)

Sig.

Glottic occlusion

1.000

Sufficient Insufficient

16/26 (61.5) 10/26 (38.5)

17/26 (65.4) 9/26 (34.6)

Phase symmetry

0.007*

Symmetrical Asymmetrical

3/26 (11.6) 23/26 (88.4)

14/26 (53.8) 12/26 (46.2)

Periodicity

0.021*

Regular Irregular

4/26 (15.4) 22/26 (84.6)

14/26 (53.8) 12/26 (46.2)

Amplitude

0.001*

Normal

3/26 (11.6) 18/26 (69.2) 5/26 (19.2)

14/33 (42.4) 12/33 (57.6)

Decreased Increased

0/33 (0)

Mucosal wave

0.029*

Normal with 30–50% lateral travel

6/26 (23.1) 18/26 (69.2)

14/33 (42.4) 11/33 (54.6)

Increased with lateral travel greater than 50% Decreased with lateral travel less than 30%

2/26 (7.7)

1/33 (3)

Nonvibratory segment

0.344

Presence Absence

10/26 (38.5) 16/26 (61.5)

6/26 (23.1) 20/26 (76.9)

Abbreviation: Sig., statistical significance. * P < 0.05.

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