Patient Safety Initiatives in Cosmetic Breast Surgery: A Systematic Review.

BACKGROUND: Improved patient safety (PS) in cosmetic breast surgery relies upon high-quality evidence. The objective of this study was to systematically review the existing evidence for PS and quality improvement (QI) in cosmetic breast surgery. METHODS: A systematic review of published plastic surgery literature from 1965 to 2021 was undertaken through a computerized search following PRISMA guidelines. Publication descriptors, methodological details, and overall results were extracted. Articles were assessed for methodological quality using either the MINORS, Cochrane ROB2, or AMSTAR 2 instrument depending on the type of study. RESULTS: Sixty studies were included. Most studies were retrospective, and 43.3 percent were from the 3rd level of evidence. Overall, the scientific quality was moderate, with randomized controlled trials and non-comparative non-randomized studies generally being rated of higher quality. Studies investigating approaches to antisepsis (38.3 percent) in cosmetic breast surgery indicated conflicting opinions on prophylactic antibiotics. Studies focusing on risk factor assessment tools (8.3 percent) held possible utility in identifying high-risk patients for cosmetic surgery. Studies assessing anesthesia in cosmetic breast surgery (5 percent) demonstrated a significant benefit to tumescent local anesthesia. Drains for decreasing hematoma and seroma (8.3 percent) largely showed no benefit. CONCLUSIONS: Overall, PS and QI studies were of moderate quality and investigated numerous interventions. Our review identified a need for additional studies to decrease infection and other breast implant morbidities, specifically breast implant-associated anaplastic large cell lymphoma and capsular contracture.

Autologous Versus Alloplastic Reconstruction for Patients with Obesity: A Systematic Review and Meta-analysis.

BACKGROUND: Autologous flaps may have superior outcomes when compared to implant breast reconstruction in patients with obesity. To date, no published review has illustrated the superiority of autologous to implant-based reconstruction in this study group in terms of aesthetics outcomes and surgical complications. METHODS: A systematic search was conducted on PubMed, Cochrane, Google Scholar, and Embase from inception to December 31, 2020. Studies comparing the outcomes (patient satisfaction and complications) of autologous versus implant-based reconstruction in patients with BMI > 30 were selected. RESULTS: The search yielded 1633 articles, of which 76 were assessed in full text. A total of 12 articles fit inclusion for qualitative review; of them, 7 were meta-analyzed. Autologous reconstruction had a lower incidence of infection (OR 0.74 [95% CI 0.59, 0.92]), hematoma/seroma formation (OR 0.34 [95% CI 0.23, 0.49]), and reconstructive failure (OR 0.47 [95% CI 0.36, 0.62]), but not skin necrosis (OR 0.95 [95% CI 0.73, 1.25]) or wound dehiscence (OR 1.03 [95% CI 0.72, 1.49]) when compared to implant-based reconstruction. Deep vein thrombosis (DVT) and pulmonary embolism occurred more frequently with autologous versus alloplastic reconstruction (OR 2.21 [95% CI 1.09, 4.49] for DVT and OR 2.49 [95% CI 1.13, 5.48] for PE). BREASTQ scores were higher for the autologous breast reconstruction when compared to implant-based group, but failed to reach significance (p value >0.05). CONCLUSION: The current evidence in the literature suggests that autologous breast reconstruction has lower surgical complication rate when compared to implant-based reconstruction at the expense of higher risk of thrombotic complications for patients with BMI > 30. LEVEL OF EVIDENCE III: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Piezosurgery versus Conventional Cutting Techniques in Craniofacial Surgery: A Systematic Review and Meta-Analysis.

BACKGROUND: Despite its increasing use in craniofacial surgery, the evidence for piezosurgery over conventional bone-cutting techniques has not been critically appraised. The purpose of this systematic review and meta-analysis was to identify and assess the evidence that exists for the use of piezosurgery in craniofacial surgery. METHODS: A systematic review was undertaken using a computerized search. Publication descriptors, methodologic details, and outcomes were extracted. Articles were assessed using the methodologic index for nonrandomized studies and Cochrane instruments. Random effects meta-analysis was completed. RESULTS: Thirty-nine studies were included. Most studies were published within the past 5 years (51.3 percent) and were randomized controlled trials (56.4 percent). The mean age of patients was 27 years (range, 0.2 to 57 years), and the mean sample size was 44 (range, 12 to 180). Meta-analysis revealed that compared to conventional instruments, piezosurgery had a lower postoperative incidence of sensory disturbance, principally in mandibular procedures (OR, 0.29; 95 percent CI, 0.11 to 0.77; p = 0.01) and pain at postoperative day 3 (mean difference, -0.86; 95 percent CI, -1.20 to -0.53; p < 0.01). There was no statistically significant difference in operating room time (mean difference, 8.60; 95 percent CI, -1.27 to 18.47; p = 0.80) or osteotomy time (mean difference, 0.35; 95 percent CI, -2.99 to 3.68; p = 0.84). Most studies were clinically homogenous (92 percent) and of high quality based on the methodologic index for nonrandomized studies instrument (84 percent). Few studies had domains at high risk of bias based on the Cochrane instrument (28.6 percent). CONCLUSIONS: Piezosurgery has considerable benefits when compared to conventional instruments. Future studies should investigate its cost-effectiveness and benefits in terms of blood loss, edema/ecchymosis, and patient satisfaction.

In Vivo Magnetic Resonance Spectroscopy of Hyperpolarized [1-13 C]Pyruvate and Proton Density Fat Fraction in a Guinea Pig Model of Non-Alcoholic Fatty Liver Disease Development After Life-Long Western Diet Consumption.

BACKGROUND: Alterations in glycolysis are central to the increasing incidence of non-alcoholic fatty liver disease (NAFLD), highlighting a need for in vivo, non-invasive technologies to understand the development of hepatic metabolic aberrations. PURPOSE: To use hyperpolarized magnetic resonance spectroscopy (MRS) and proton density fat fraction (PDFF) magnetic resonance imaging (MRI) techniques to investigate the effects of a chronic, life-long exposure to the Western diet (WD) in an animal model resulting in NAFLD; to investigate the hypothesis that exposure to the WD will result in NAFLD in association with altered pyruvate metabolism. STUDY TYPE: Prospective. ANIMAL MODEL: Twenty-eight male guinea pigs weaned onto a control diet (N = 14) or WD (N = 14). FIELD STRENGTH/SEQUENCE: 3 T; T1-weighted gradient echo, T2-weighted spin-echo, three-dimensional gradient multi-echo fat-water separation (IDEAL-IQ), and broadband point-resolved spectroscopy (PRESS) chemical-shift sequences. ASSESSMENT: Median PDFF was calculated in the liver and hind limbs. [1-13 C]pyruvate dynamic MRS in the liver was quantified by the time-to-peak (TTP) for each metabolite. Animals were euthanized and tissue was analyzed for lipid and cholesterol concentration and enzyme level and activity. STATISTICAL TESTS: Unpaired Student's t-tests were used to determine differences in measurements between the two diet groups. The Pearson correlation coefficient was calculated to determine correlations between measurements. RESULTS: Life-long WD consumption resulted in significantly higher liver PDFF and elevated triglyceride content in the liver. The WD group exhibited a decreased TTP for lactate production, and ex vivo analysis highlighted increased liver lactate dehydrogenase (LDH) activity. DATA CONCLUSION: PDFF MRI results suggest differential fat deposition patterns occurring in animals fed a life-long WD characteristic of lean, or lacking excessive subcutaneous fat, NAFLD. The decreased liver lactate TTP and increased ex vivo LDH activity suggest lipid accumulation occurs in association with a shift from oxidative metabolism to anaerobic glycolytic metabolism in WD-exposed livers. LEVEL OF EVIDENCE: 2 TECHNICAL EFFICACY STAGE: 1.

Is Orbicularis Oculi Muscle Resection Necessary in Upper Blepharoplasty? A Systematic Review.

BACKGROUND: Our objective is to evaluate the evidence on the aesthetic effect and complications of skin-OOM strip resection compared to skin only upper blepharoplasty. METHODS: A systematic search of EMBASE, PubMed, Cochrane and Google Scholar databases was performed using our search strategy through to 31 December 2019. Only comparative studies of the two upper blepharoplasty techniques were included. Three reviewers performed study selection process, data extraction, and quality assessment. RESULTS: A total of six articles were eligible for final inclusion. The included studies consist of two controlled retrospective cohorts and four small randomized controlled studies (RCT). Three of which, were double blinded. Those RCTs were assigned level 2 evidence due to small size and methodological limitations. The sample size of included was studies 407 in the two retrospective studies and 57 in the four RCTs. The outcomes showed that resection of OOM along with skin in upper blepharoplasty showed no difference in long-term aesthetic outcome when skin only procedure is performed. Muscle strip resection was associated with initially higher ophthalmological morbidity (edema, bruising, pain, dry eye, sluggish eye closure and lagopthalmos). Those resolved a few weeks later with conservative treatment. CONCLUSION: The resection of OOM along with skin in upper blepharoplasty showed no difference in long-term aesthetic outcome and was associated with initially higher ophthalmological morbidity compared to skin only procedure. While we are not suggesting that OOM resection is never required, the evidence strongly support its preservation during standard upper blepharoplasty. LEVEL OF EVIDENCE III: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Understanding child anxiety before otoplasty: A qualitative study.

BACKGROUND: Pre-operative anxiety in pediatric patients is a major concern in surgical care due to the future medical and behavioral consequences that can occur. The objective of this study was to understand the factors that lead to pre-operative anxiety before otoplasty. METHODS: Participants at a Canadian pediatric hospital were identified to discuss their experience with otoplasty and any anxiety they experienced using a semi-structured interview. Interviews were transcribed and analyzed using a qualitative semantic thematic approach. Major themes were identified and supporting quotes were extracted from the interviews. RESULTS: Ten participants were enrolled in the study. Three main themes (and seven subthemes) were identified: concern for post-operative well-being (perception by others, physical well-being, and negative experiences), fear of the unknown (surgical uncertainty, vulnerability), and support (family and friends, surgeon). CONCLUSIONS: Otoplasty was shown to be an emotional experience for participants with multiple sources of anxiety being identified. While most anxiety sources were similar to those for other pediatric surgeries, a number were specific to otoplasty and its post-operative care plan. This understanding of anxiety will allow physicians and care teams to better prepare patients and their families for otoplasty and enhance the patient's overall experience.