Table 3. Complications of on CO2 laser, microdebrider and KTP laser used in the Surgical Procedures for RRP.
Study, Year
Treatment Modality
Sample Size
Mean Number of Procedures
Complication rate
Delayed complications(n)
Intraoperative complications(n)
HOCK. 2022[15]. CO2 laser 21 15.5 38.10% 2 vocal scar
6 anterior commissure web
PATEL.2003[5] CO2 laser 17 7.47 0.00%
EL-BITAR. 2002[25] CO2 laser 16 1.44 31.25% 1 vocal scar 1 Glottic edema
3 anterior commissure web
Hao-Chun.2017[27] CO2 laser 6 1.67 0.00%
Papaspyrou. 2016[9]. CO2 laser 37 1.22 8.11% 3 anterior commissure web
Ossoff.1991[30] CO2 laser 14 4.43 21.43% 2 vocal scar
1 anterior commissure web
Ossoff.1991[30] CO2 laser 8 5.38 0.00%
Araki.2019[31] CO2 laser 7 1.71 0.00%
Papaioannou.2018[14] CO2 laser 44 2.16 15.91% 1 vocal scar
4 anterior commissure web
2 Granulation polyp
Zhao.2007[32] CO2 laser 30 NA 23.33% 7 Glottic stenosis
Preuss.2007[16] CO2 laser 64 2.14 12.50% 2 vocal scar 2 Glottic edema
4 anterior commissure web
Dedo.2001[35] CO2 laser 227 NA 34.80% 2 vocal scar
61 anterior commissure web
16 Glottic stenosis
Cui.2001[36] CO2 laser 60 5.58 40.00% 23 Glottic stenosis 1 Burning in the tracheobronchial
Shah.1994[37] CO2 laser 54 3.98 11.11% 6 Glottic stenosis
HOCK. 2022[15]. microdebrider 49 17.3 44.90% 5 vocal scar
17 anterior commissure web
Wenbin.2006[6] microdebrider 14 4.71 0.00%
PATEL.2003[5] microdebrider 15 3.33 0.00%
EL-BITAR. 2002[25] microdebrider 16 3.13 0.00%
Miller.2019[26] microdebrider 17 13.53 0.00%
Rees.2005[34] microdebrider 50 NA 0.00%
HUNG. 2021[24] KTP laser 16 4.94 18.75% 3 anterior commissure web
Del Signore.2016[28] KTP laser 34 NA 8.82% 1 vocal scar
Kuet.2013[29] KTP laser 19 NA 0.00%
Burns.2007[33] KTP laser 37 1.49 0.00%