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Incidence of postoperative facial weakness in parotid tumor surgery: a tumor subsite analysis of 794 parotidectomies.

ABSTRACT: BACKGROUND:The reported incidence of facial weakness immediately after parotid tumor surgery ranges from 14 to 65%. The purpose of this study was to evaluate the incidence of postoperative facial weakness related to parotidectomy with use of preoperative computed tomography (CT), intraoperative facial nerve monitoring, and surgical magnification. Also, we sought to elucidate additional information about risk factors for postoperative facial weakness in parotid tumor surgery, particularly focusing on the tumor subsites. METHODS:We retrospectively reviewed 794 cases with parotidectomy for benign and malignant tumors arising from the parotid gland (2009-2016). Patients with pretreatment facial palsy were excluded from the analyses. Tumor subsites were stratified based on their anatomical relations to the facial nerve as superficial, deep, or both. Multivariable logistic regression analyses were conducted to identify risk factors for postoperative facial weakness. RESULTS:The overall incidences of temporary and permanent (more than 6 months) facial weakness were 9.2 and 5.2% in our series utilizing preoperative CT, intraoperative facial nerve monitoring, and surgical magnification. Multivariable analysis revealed that old age, malignancy, and recurrent tumors (revision surgery) were common independent risk factors for both temporary and permanent postoperative facial weakness. In addition, tumor subsite (tumors involving superficial and deep lobe) was associated with postoperative facial weakness, but not tumor size. Extent of surgery was strongly correlated with tumor pathology (malignant tumors) and tumor subsite (tumors involving deep lobe). CONCLUSION:Aside from risk factors for facial weakness in parotid tumor surgery such as old age, malignant, or recurrent tumors, the location of tumors was found to be related to postoperative facial weakness. This study result may provide background data in a future prospective study and up-to-date information for patient counseling.

SUBMITTER: Jin H

PROVIDER: S-EPMC6933669 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Incidence of postoperative facial weakness in parotid tumor surgery: a tumor subsite analysis of 794 parotidectomies.

Jin Hokyung H Kim Bo Young BY Kim Heejung H Lee Eunkyu E Park Woori W Choi Sungyong S Chung Man Ki MK Son Young-Ik YI Baek Chung-Hwan CH Jeong Han-Sin HS

BMC surgery 20191226 1

<h4>Background</h4>The reported incidence of facial weakness immediately after parotid tumor surgery ranges from 14 to 65%. The purpose of this study was to evaluate the incidence of postoperative facial weakness related to parotidectomy with use of preoperative computed tomography (CT), intraoperative facial nerve monitoring, and surgical magnification. Also, we sought to elucidate additional information about risk factors for postoperative facial weakness in parotid tumor surgery, particularly ...[more]

PMID: 31878919

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Project description:Background and objectives: Facial weakness is the most important complication of parotid gland tumor surgery. The aims of this study are as follows: (1) assessment of the prevalence of postparotidectomy facial nerve dysfunction; (2) clinical and electrophysiological assessment of the facial nerve function before parotidectomy and at 1 and 6 months postoperatively; (3) assessment of the association of postoperative facial palsy with selected risk factors; and (4) assessment of the correlation between the results of clinical and neurophysiological assessments of facial nerve function. Materials and Methods: This study comprised 50 patients (aged 24–75 years) who underwent parotidectomy at the Department of Otolaryngology and Laryngological Oncology in Zabrze, Poland between 2015 and 2017. The evaluation included neurological, clinical and electrophysiological assessments of the facial nerve prior to surgery and at 1 and 6 months postoperatively. Results: No facial palsy was found preoperatively or 6 months postoperatively. Facial nerve dysfunction was found in 74% of patients 1 month postoperatively. In most cases (54%), paresis was mild or moderate (House–Brackmann grades II and III). The results of electrophysiological tests before parotidectomy were either normal or showed some mild abnormalities. We found a statistically significant correlation between the clinical assessment of the facial nerve function (based on the House–Brackmann scale) one month postoperatively and the latency of the CMAP response from the orbicularis oculi and orbicularis oris muscles. In all three studies, a statistically significant correlation was found between the amplitude of the compound muscle action potential (CMAP) of the orbicularis oris muscle and the degree of facial nerve weakness. Conclusions: The factors that may influence the risk of postoperative facial nerve paralysis (prolonged surgical time and the size and location of the tumor other than in the superficial lobe only) may indirectly suggest that surgery-related difficulties and/or surgeon experience could be crucial to surgery safety.

Project description:Importance:Best practices for antibiotic use after facial plastic and reconstructive procedures have been the subject of much debate, and there is a need for large-scale data to guide further development of evidence-based guidelines for antibiotic use in this setting. Objective:To assess patterns of postoperative antibiotic prescriptions and infection rates after nasal and oculoplastic procedures. Design, Setting, and Participants:A retrospective population-based cohort study was conducted using IBM MarketScan Commercial and Medicare Supplemental research databases of 294?039 patients who underwent facial plastic surgery procedures between January 1, 2007, and December 31, 2015. Patients were excluded if they were younger than 18 years, lacked continuous insurance coverage for 1 year before and after the procedure, or underwent additional procedures on the surgery date of interest. Statistical analysis was performed from January 1, 2007, to December 31, 2016. Main Outcomes and Measures:Primary outcomes were antibiotic prescription patterns in the immediate postoperative period and rates of postoperative infectious complications. Explanatory variables included patient demographics, procedure type, and relevant comorbidities, which were used in multivariable logistic regression analysis. Results:Of the 294?039 patients who met inclusion criteria (55.9% women and 44.1% men; mean [SD] age, 54.0 [18.6 years]), 45.2% filled prescriptions for postoperative antibiotics, including 55.3% of patients undergoing nasal procedures and 14.7% of patients undergoing oculoplastic procedures. Superficial surgical site infections occurred in 1.6% of patients, while deep surgical site infections occurred in 0.3% of patients. On multivariable logistic regression, patients receiving postoperative antibiotics were at significantly decreased risk of postoperative infections (nasal procedures: adjusted odds ratio [aOR], 0.144 [95% CI, 0.102-0.203]; oculoplastic procedures: aOR, 0.254 [95% CI, 0.104-0.622]) compared with those who did not receive postoperative antibiotics. Increased duration of postoperative antibiotics was not associated with reduced rates of infectious complications (nasal procedures: aOR, 1.000 [95% CI, 0.978-1.022]; oculoplastic procedures: aOR, 1.024 [95% CI, 0.959-01.092]). Despite being more likely to experience postoperative infections, patients with a history of tobacco use (aOR, 0.806 [95% CI, 0.747-0.870]), immunodeficiency (aOR, 0.774 [95% CI, 0.737-0.813]), or type 1 or 2 diabetes (aOR, 0.810 [95% CI, 0.772-0.850]) were less likely to be prescribed antibiotics than those without these conditions. Conclusions and Relevance:Postoperative antibiotic prescriptions were associated with reduced rates of infections after facial plastic surgery. This study highlights the role of population-level data in the development of best practices for postoperative antibiotic use and identifies the need for additional examination of antibiotic use patterns and recommendations for populations at increased risk for postoperative wound infection.

Project description:IntroductionEdema and ecchymosis after facial plastic surgery are a troublesome concern for both patients and surgeons. Corticosteroid administration is thought to shorten the recovery period and reduce these sequelae. Data regarding the efficacy of corticosteroid administration remains controversial among surgeons.ObjectiveWe conducted this systematic review and meta-analysis to determine the effect of pre- and postoperative corticosteroids on postoperative complications in patients undergoing facial reconstructive surgery supported with different subgroup analysis.MethodsA comprehensive literature search of articles was conducted in PubMed, Cochrane Central, SCOPUS, and EBSCO through October 2019. We included all clinical trials in which patients underwent any type of facial plastic surgery to study the effect of corticosteroids on postoperative complications. We performed subgroup analysis according to the types and doses of corticosteroid preparation, in addition to a subgroup analysis of pre- or postoperative corticosteroid usage. All statistical analysis was performed using the RevMan software.ResultsNineteen studies were included in this systematic review, but only 10 of them were eligible for meta-analysis. The periorbital edema and ecchymosis scores were significantly reduced in the corticosteroids group compared to placebo -0.82, 95% CI (-1.37, -0.26), and -0.95, 95% CI (-1.32, -0.57), respectively. However, these significant differences were not maintained at day 3 and 7. Smaller doses of corticosteroid (8 mg and 10 mg) were associated with smaller differences in the mean score of upper and lower eyelid edema and ecchymosis, while the higher doses were associated with greater differences. Furthermore, preoperative corticosteroid usage significantly reduced the intraoperative bleeding when compared to placebo for higher doses > 50 mg per day (p < 0.0001), but not for 8 mg corticosteroid (p = 0.06). Adding postoperative steroid dose to the preoperative one was associated with less edema and ecchymosis than preoperative administration alone.ConclusionThis comprehensive meta-analysis confirms a statistically significant benefit of preoperative corticosteroids. Furthermore, continuing the steroids postoperatively is associated with long-term reduction of complications. Higher doses of corticosteroids are associated with a more significant reduction in edema and ecchymosis, but further studies are recommended to determine the postoperative side effects, including surgical site infection and delayed healing.

Dataset Information

Incidence of postoperative facial weakness in parotid tumor surgery: a tumor subsite analysis of 794 parotidectomies.

Publications

Incidence of postoperative facial weakness in parotid tumor surgery: a tumor subsite analysis of 794 parotidectomies.

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