Coblation tonsillectomy versus laser tonsillectomy: a systematic review and meta-analysis of randomized controlled trials
Affiliations
Affiliations
- Kuwait Institute for Medical Specializations (KIMS), Kuwait City, Kuwait.
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, Faculty of Medicine, Kuwait University, Jabriya, Kuwait.
- Primary Care Department, Jahra Health Region, Saad Al-Abdullah Health Care Centre, Jahra, Kuwait.
- Department of Internal Medicine, Jahra Hospital, Jahra, Kuwait.
- School of Public Health, The University of Memphis, Memphis, TN, USA.
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia. aabuzaid@live.com.
- Department of Pharmacology, College of Graduate Health Sciences, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. aabuzaid@live.com.
Abstract
Aim: This systematic review and meta-analysis of randomized controlled trials (RCTs) evaluated coblation versus laser (carbon dioxide and diode) tonsillectomy, with regard to various surgical and clinical outcomes.
Methods: We searched PubMed, CENTRAL, Scopus, and Web of Science for relevant from inception until March 2021. We evaluated risk of bias using the Cochrane Collaboration Tool. We summarized the outcomes as risk ratio (RR) or mean difference/standardized mean difference (MD/SMD) with 95% confidence interval (CI). We conducted subgroup analysis based on the day of postoperative pain (day 1, day 7, and day 14) and type of postoperative hemorrhage (reactionary and secondary). In addition, we conducted subgroup analysis according to the type of laser.
Results: Five RCTs were analyzed. Three and two RCTs were evaluated as having "some concerns" and "low risk of bias", respectively. Coblation tonsillectomy correlated with lower intraoperative blood loss (MD = -5.08 ml, 95% CI [- 7.33 to - 2.84], P < 0.0001) and lower operative time (MD = - 4.50 min, 95% CI [- 6.10 to - 2.90], P < 0.0001) compared with the laser tonsillectomy. However, there was no significant difference between both groups regarding the postoperative pain score (SMD = - 0.27, 95% CI [- 0.72 to 0.17], P = 0.27) and rate of postoperative hemorrhage (RR = 0.95, 95% CI [0.27-3.40], P = 0.23). Subgroup analysis reported similar insignificant difference between both groups according to the day of postoperative pain and type of postoperative hemorrhage.
Conclusions: Coblation tonsillectomy correlated with a significant reduction in intraoperative blood loss and operative time compared with the laser technique. Nevertheless, these effects do not seem clinically meaningful in surgical practice.
Keywords: Coblation; Hemorrhage; Laser; Pain; Tonsillectomy.
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