Anteriorly Based Partial Thickness Sternocleidomastoid Muscle Flap Following Parotidectomy

Mini-Incision Parotidectomy-Our Technique

Traditional parotidectomy incision was devised by Blair (1912) which was modified by Bailey (1941). Over the years various approaches and techniques have evolved to improve the aesthetic outcome and at the same time for complete disease clearance with reduced complications. In this study, we evaluated the feasibility of our mini-incision parotidectomy technique along with the surgical and quality of life (QOL) outcomes. This prospective case series was conducted at Apollo Hospitals, Bangalore over a period of 2 years (June 2018-August 2020) and includes 20 patients. The surgical outcomes were assessed in terms of feasibility of mini-incision technique with respect to levels of parotid involved and functional outcomes in terms of presence or absence of complications like facial palsy (temporary or permanent), seroma and Frey's syndrome. Patient related quality of life (QOL) outcomes were assessed in terms of post-operative pain score, patient comfort score and cosmetic score by using numerical rating scale-11 (NRS-11). The mini-incision parotidectomy technique is feasible for lesions in all the parotid levels and conversion or lengthening of incision was not needed in any of the cases. 2(10%) patients had temporary facial palsy (House-Brackman grade III) which was recovered within 3 weeks after surgery. One patient (5%) with adenoid cystic carcinoma had permanent facial palsy. Out of 20 patients 2(10%) had seroma and 1(5%) patient presented with Frey's syndrome. Mean post-operative pain score at 0, 6 and 24 h were 4.8, 3.4 and 1.8 out of 10 respectively. Mean comfort score was 9 out of 10 and mean cosmetic score was 9.5 out of 10. Mini-incision parotidectomy technique can render improved functional as well as aesthetic outcomes after parotidectomy without compromising the surgical clearance of the disease process.

Different Surgical Strategies in the Prevention of Frey Syndrome: A Systematic Review and Meta-analysis

OBJECTIVE/HYPOTHESIS

To define the best surgical technique able to reduce Frey syndrome (FS) incidence after parotidectomy.

STUDY DESIGN

Systematic review and network meta-analysis.

METHODS

An arm-based network analysis was conducted using a Bayesian hierarchical model. The primary and secondary outcomes were the incidence of subjective (clinical) and objective (positive starch-iodine test result) FS, respectively.

RESULTS

A total of 3830 patients with a median age of 50.35 years (n = 2323; IQR 44.25-54.18) were included for six interventions [temporoparietal fascia (TPFF), free fat graft (FFG), acellular dermal matrix (ADM), sternocleidomastoid muscle (SCM) flap, and superficial musculoaponeurotic system (SMAS) flap]. If compared to no treatment, the greatest reduction of subjective (clinical) FS incidence was measured for the TPFF (OR: 0.07, CI: 0.004-0.57), the ADM (OR: 0.09, CI: 0.02-0.35), and the FFG (OR: 0.11, CI: 0.03-0.42) techniques. However, a significant difference was measured also for the SCM flap (OR: 0.38, CI: 0.18-0.73) and for the SMAS flap (OR: 0.42, CI: 0.19-0.97). All treatments showed a significant reduction of the objective FS incidence if compared to no treatment (FFG, OR: 0.06, CI: 0.002-0.62; TPFF, OR: 0.07, CI: 0.01-0.33; ADM, OR: 0.11, CI: 0.03-0.44; SMAS, OR: 0.36, CI: 0.17-0.71; SCM, OR: 0.40, CI: 0.19-0.74).

CONCLUSIONS

TPFF, ADM, and FFG seem to be the best treatment strategies to prevent FS after parotidectomy. Further randomized controlled trials comparing these techniques should be conducted to define specific indications. Laryngoscope, 131:1761-1768, 2021.

Minor Parotidectomy Complications: A Systematic Review

OBJECTIVES

To report descriptive statistics for minor parotidectomy complications.

METHODS

A systematic review was performed, selecting 235 studies for analysis. The incidence of complications was tabulated, and descriptive statistics calculated. Outlier studies, 1 standard deviation above the mean, were reexamined to determine potential causal factors for each complication. All studies were examined for statistically significant differences for any potential causal factor.

RESULTS

The pooled incidence of minor complications reported were hematoma 2.9% (95% confidence interval [CI]: 2.4-3.5), wound infection 2.3% (95% CI: 1.8-2.9), sialocele 4.5% (95% CI: 3.5-5.7), salivary fistula 3.1% (95% CI: 2.6-3.7), flap necrosis 1.7% (95% CI: 1.1-2.5), scar issues 3.6% (95% CI: 2.4-5.4), numbness 33.9% (95% CI: 25.6-43.4), and deformity 11.8 (95% CI: 6.9-19.5). Implants result in more wound complications, such as hematoma, sialocele, or salivary fistula. Sialocele and salivary fistula appear more frequently after less extensive parotid surgery, whereas hematoma, wound infections, flap necrosis, and aesthetic considerations are worse with more extensive resections.

CONCLUSIONS

Minor parotidectomy complications are more frequent than generally assumed and related to certain factors that should be investigated. Laryngoscope, 131:571-579, 2021.