Asaad, Malke

Background: Several materials are available for cranioplasty reconstruction and consensus regarding the ideal material is lacking. The goal of this study is to present surgical and patient-reported outcomes with PEEK versus Titanium alloplastic cranioplasty. Methods: A retrospective review of all patients who underwent alloplastic cranioplasty with PEEK or Titanium from 2010 to 2017 was conducted. Patient demographics and complications were abstracted and analyzed. Information regarding patient-reported outcomes was collected through a telephone survey. Results: A total of 72 patients (median age 55 years) who underwent 77 cranioplasties were identified (38% PEEK, n = 29; 62% Titanium, n = 48). Overall complication rates were similar between the PEEK (24%, n = 7) and Titanium groups (23%, n = 11), P = 0.902. Similarly, implant failure was similar between the 2 groups (7% in PEEK (n = 2), 13% in Titanium (n = 6), P = 0.703). History of radiation was associated with increased rate of infection in patients with Titanium mesh cranioplasty (38% in radiated patients (n = 3), 3% in nonradiated patients (n = 1), P = 0.012) but not PEEK implants (0% infection rate in radiated patients (n = 0), 15% in nonradiated patients (n = 4), P = 1.000). A total of 24 patients (33% response rate) participated in the telephone survey. All PEEK cranioplasty patients who responded to our survey (n = 13) reported good to excellent satisfaction, while 72% of our titanium mesh cohort (n = 8) described good or excellent satisfaction and 27% (n = 3) reported acceptable result. Conclusion: Cranial reconstruction is associated with high satisfaction among cranioplasty patients with PEEK or Titanium showing comparable complications, failure, and patient-reported satisfaction rates. Patients with history of radiotherapy demonstrated a higher infection rate when titanium mesh was used.

Background While there is a long history of measuring death and disability from injuries, modern research methods must account for the wide spectrum of disability that can occur in an injury, and must provide estimates with sufficient demographic, geographical and temporal detail to be useful for policy makers. The Global Burden of Disease (GBD) 2017 study used methods to provide highly detailed estimates of global injury burden that meet these criteria. Methods In this study, we report and discuss the methods used in GBD 2017 for injury morbidity and mortality burden estimation. In summary, these methods included estimating cause-specific mortality for every cause of injury, and then estimating incidence for every cause of injury. Non-fatal disability for each cause is then calculated based on the probabilities of suffering from different types of bodily injury experienced. Results GBD 2017 produced morbidity and mortality estimates for 38 causes of injury. Estimates were produced in terms of incidence, prevalence, years lived with disability, cause-specific mortality, years of life lost and disability-adjusted life-years for a 28-year period for 22 age groups, 195 countries and both sexes. Conclusions GBD 2017 demonstrated a complex and sophisticated series of analytical steps using the largest known database of morbidity and mortality data on injuries. GBD 2017 results should be used to help inform injury prevention policy making and resource allocation. We also identify important avenues for improving injury burden estimation in the future.

Background Bronchopleural fistula (BPF) is a dreaded complication of pulmonary resection. For high-risk patients, bronchial stump coverage with vascularized tissue has been recommended. The goal of this study was to report our experience with intrathoracic muscle transposition for bronchial stump coverage. Methods A retrospective review of all patients who underwent intrathoracic muscle flap transposition as a prophylactic measure at our institution between 1990 and 2010 was conducted. Demographics, surgical characteristics, and complication rates were abstracted and analyzed. Results A total of 160 patients were identified. The most common lung resections performed were pneumonectomy (n = 69, 43%) and lobectomy (n = 60, 38%). A total of 168 flaps were used where serratus anterior was the most common flap (n = 136, 81%), followed by intercostal (n = 14, 8%), and latissimus dorsi (n = 12, 7%). Ten patients (6%) developed BPF, and empyema occurred in 13 patients (8%). Median survival was 20 months, and operative mortality occurred in 7 patients (4%). Conclusions Reinforcement of the bronchial closure with vascularized muscle is a viable option for potentially decreasing the incidence of BPF in high-risk patients. Further randomized studies are needed to determine the efficacy of this technique for BPF prevention.

Background The journal impact factor (IF) is one of the most widely adopted metrics to assess journal value. We aimed to investigate the trends in the IF and ranking of plastic surgery journals (PSJs) over a 22-year period. Methods The Journal Citation Report 2018 was used to identify all journals within the field of plastic surgery from 1997 to 2018. We analyzed the IF of PSJs and that of the category surgery. Results A total of 34 PSJs were identified. The mean IF increased from 0.584 (median, 0.533) in 1997 to 1.58 (median, 1.399) in 2018 (P < 0.0001). Over the same time, the median IF of the journals in the category surgery increased from 0.914 to 1.883. The mean journal IF percentile of PSJs within surgery remained fairly stable (P = 0.999). A strong positive correlation was identified between the IF of PSJs and both the 5-year IF (r = 0.943, P < 0.0001) and the immediacy index (r = 0.736, P < 0.0001). The percentage of self-citations across the study period was fairly stable at a mean of 19.2%. A weak positive correlation was found between the IF and the percentage of self-citations (r = 0.171, P < 0.0001). Conclusions The mean journal IF in PSJs has been trending upward over the last 22 years. Ranking of PSJs IF within the category surgery has remained unchanged. The self-citation rate has been fairly stable and correlated weakly with the IF. A strong positive correlation exists between the IF and both the immediacy index and the 5-year IF.

Abstract Background Altmetrics (alternative metrics) have become one of the most commonly utilized metrics to track the impact of research articles across electronic and social media platforms. Objectives The goal of this study was to identify whether the Altmetric Attention Score (AAS) is a good proxy for citation counts and whether it can be employed as an accurate measure to complement the current gold standard. Methods The authors conducted a citation analysis of all articles published in 6 plastic surgery journals during the 2016 calendar year. Citation counts and AAS were abstracted and analyzed. Results A total of 1420 articles were identified. The mean AAS was 11 and the median AAS was 1. The journal with the highest mean AAS was Aesthetic Surgery Journal (31), followed by Plastic and Reconstructive Surgery (19). A weak positive correlation was identified (r = 0.33, P &lt; .0001) between AAS and citations. Articles in the top 1% in terms of citation counts showed strong positive correlation between AAS and citation counts (r = 0.64, P = .01). On the contrary, articles in the top 1% of AAS had no significant correlation with citation counts (r = −0.31, P = .29). Conclusions Overall correlation between citations and AAS was weak, and therefor AAS may not be an accurate early predictor of future citations. The 2 metrics seem to measure different aspects of the impact of scholarly work and should be utilized in tandem for determining the reach of a scientific article.

Background Past research in population health trends has shown that injuries form a substantial burden of population health loss. Regular updates to injury burden assessments are critical. We report Global Burden of Disease (GBD) 2017 Study estimates on morbidity and mortality for all injuries. Methods We reviewed results for injuries from the GBD 2017 study. GBD 2017 measured injury-specific mortality and years of life lost (YLLs) using the Cause of Death Ensemble model. To measure non-fatal injuries, GBD 2017 modelled injury-specific incidence and converted this to prevalence and years lived with disability (YLDs). YLLs and YLDs were summed to calculate disability-adjusted life years (DALYs). Findings In 1990, there were 4 260 493 (4 085 700 to 4 396 138) injury deaths, which increased to 4 484 722 (4 332 010 to 4 585 554) deaths in 2017, while age-standardised mortality decreased from 1079 (1073 to 1086) to 738 (730 to 745) per 100 000. In 1990, there were 354 064 302 (95% uncertainty interval: 338 174 876 to 371 610 802) new cases of injury globally, which increased to 520 710 288 (493 430 247 to 547 988 635) new cases in 2017. During this time, age-standardised incidence decreased non-significantly from 6824 (6534 to 7147) to 6763 (6412 to 7118) per 100 000. Between 1990 and 2017, age-standardised DALYs decreased from 4947 (4655 to 5233) per 100 000 to 3267 (3058 to 3505). Interpretation Injuries are an important cause of health loss globally, though mortality has declined between 1990 and 2017. Future research in injury burden should focus on prevention in high-burden populations, improving data collection and ensuring access to medical care.

Background: Presentation of research at scientific conferences provides an opportunity for researchers to disseminate their work and gain peer feedback. However, much of the presented work is never published in peer-reviewed journals. The authors analyzed the conversion rate of abstracts presented at three national plastic surgery meetings. Methods: Abstracts presented at the American Association of Plastic Surgeons (AAPS), the American Society of Plastic Surgeons (ASPS), and the Plastic Surgery Research Council (PSRC) annual meetings in 2014 and 2015 were identified to analyze the rates of successful conversion into full-text publications. Meeting administrators were contacted to obtain the respective acceptance rates of submitted abstracts. Results: A total of 1174 abstracts were analyzed. The overall conversion rate was 65 percent. The AAPS meeting had the highest conversion rate (73 percent), followed by the PSRC (66 percent) and the ASPS (61 percent). Conversely, the AAPS meeting had a lower acceptance rate (28 percent) compared with the ASPS (42 percent) and PSRC (49 percent) meetings. The conversion rate was significantly higher for abstracts from native English-speaking countries, whereas no significant differences were noted between oral and poster presentations. Plastic and Reconstructive Surgery had the highest percentage of published manuscripts (34 percent). Abstracts presented at the PSRC meeting had the highest mean impact factor for the journal of publication. First authors changed in 31 percent and last authors changed in 18 percent of publications. The overall median time to publication from the date of presentation was 13 months. Conclusions: Almost two-thirds of abstracts presented at AAPS, ASPS, and PSRC meetings successfully converted into full-text publications. Plastic surgery departments/divisions should follow unpublished work in their institutions to benefit both patients and the scientific community.

Abstract Background The use of eye-tracking technology in plastic surgery has gained popularity over the past decade due to its ability to assess observers’ visual preferences in an objective manner. Objectives The goal of this study was to provide a comprehensive review of eye-tracking studies in plastic and reconstructive surgery, which can aid in the design and conduct of high-quality eye-tracking studies. Methods Through application of Preferred Reporting Items for Systematic review and Meta-Analysis (PRISMA) guidelines, a comprehensive search of articles published on eye-tracking across several databases was conducted from January 1946 to January 2019. Inclusion criteria included studies evaluating the use of eye-tracking technology in the field of plastic and reconstructive surgery. The resulting publications were screened by 2 independent reviewers. Results A total of 595 articles were identified, 23 of which met our inclusion criteria. The most common application of eye-tracking was to assess individuals with cleft lip/palate (9 studies). All 19 studies that evaluated fixation patterns among conditions vs controls reported significant differences between the 2 groups. Five out of 7 studies assessing visual data between preoperative and postoperative patients identified significant differences between the preoperative and postoperative groups, whereas 2 studies did not. Nine studies examined the relation between severity indices, attractiveness scores, or personality ratings and gaze patterns. Correlation was found in 7 out of the 9 studies. Conclusions This systematic review demonstrates the utility of eye-tracking technology as a quantifiable objective assessment and emerging research tool for evaluating outcomes in several domains of plastic and reconstructive surgery.