JAMA facial plastic surgery最新文献

Importance: Acute rejection is one of the most frequent complications in facial transplantation, with potentially severe consequences for the recipient if overlooked. Clinical signs, such as erythema or edema, are helpful to diagnose acute rejection in the early follow-up stage; however, it is not well known whether these clinical signs remain reliable markers of acute rejection beyond the second posttransplant year.

Objective: To determine the diagnostic value of clinical signs of acute rejection after facial transplantation over time.

Design, setting, and participants: A retrospective, single-center cohort study was conducted of patients who underwent facial transplantation at Brigham and Women's Hospital between April 2009 and October 2014, with up to an 8-year follow-up. Medical records were reviewed until September 30, 2017. The medical records from 104 encounters with 7 patients who underwent partial or full facial transplantation were analyzed for symptoms of rejection, immunosuppressive therapy, and histopathologic findings.

Main outcomes and measures: The occurrence of 5 clinical signs of acute rejection were evaluated: erythema, edema, exanthema, suture line erythema, and mucosal lesions. Odds ratios (ORs) were calculated to determine the statistically significant association of these signs with the histopathologic diagnosis of rejection. In addition, tacrolimus blood levels, as a surrogate marker of immunosuppressive therapy, were evaluated.

Results: Of the 7 patients included in the study, 5 were men. The mean follow-up was 66 months (range, 35-101). Of 104 clinical encounters, 46 encounters (44.2%) represented rejection episodes and 58 encounters (55.8%) represented no-rejection episodes. Beyond 2 years posttransplantation, only erythema (OR, 6.53; 95% CI, 1.84-20.11; P = .004) and exanthema (OR, ∞; 95% CI, 2.2-∞; P = .004) were demonstrated to be reliable clinical signs of acute rejection in facial transplantation. There was also a statistically significant association of subtherapeutic tacrolimus levels with late rejection episodes (OR, 3.79; 95% CI, 1.25-12.88; P = .03). In addition, the occurrence of subclinical rejection was more frequent during later follow-up times (7 [24.1%] late rejections vs 1 [5.9%] early rejection). Five of 8 subclinical rejections (62.5%) were associated with subtherapeutic tacrolimus levels.

Conclusions and relevance: Clinical signs of acute rejection in facial transplantation appear to be of limited diagnostic value, particularly after the second postoperative year. Until alternative biomarkers for rejection are identified, protocol skin biopsies will remain necessary for guiding assessments of allograft rejection.

Level of evidence: 3.

Importance: Mandibular contour surgeries (MCS) involving reduction gonioplasty and genioplasty are rewarding for patients with square faces; however, the procedure has inherently difficult clinician learning curves and unpredictable skill acquisitions. To our knowledge, there has been no effective, validated training model that might improve training and surgical outcomes for MCS.

Objective: To establish and evaluate a standardized intraoral MCS training system.

Design, setting, and participants: Intraoral MCS training models were constructed by 3-dimensional (3D) skull models covered with elastic head cloths. From April 2016 to April 2018, 90 consecutive MCS patients (30 per group) and 15 craniofacial surgery fellow physicians (5 per group) were enrolled in the prospective observational study. They were randomly divided into intervention groups (A and B) and a control group (C). Intervention groups A and B completed 5 training sessions on the intraoral MCS training models before each clinical case. Group A performed both the model training sessions and clinical surgeries with surgical templates. Control group C had no extra training before clinical surgeries. All groups completed clinical surgery under supervision on 6 patients. The duration of follow-up was at least 3 months postoperatively.

Interventions: Intraoral MCS training models were provided to intervention groups (A and B) before clinical surgeries. Surgical templates were provided to intervention group A both in training sessions and clinical surgeries.

Main outcomes and measures: The completion time, surgical accuracy, learning curves, operating confidence, surgical skill, and outcome satisfaction of each procedure were recorded and analyzed with paired t test and 1-way analysis of variance test by blinded observers.

Results: All 90 patients (14 men, 76 women; mean [SD] age, 26 [5] years) were satisfied with their postoperative mandible contours. The intervention groups (A and B), especially the group with surgical templates (A) showed improvements in clinical surgery time (mean [SD], group A 147.2 [24.71] min; group B, 184.47 [16.28] min; group C, 219.3 [35.3] min; P = .001), surgical accuracy (mean [SD], group A, 0.68 [0.22] mm; group B, 1.22 [0.38] mm; group C, 1.88 [0.54] mm; P < .001), learning curves, and operators' confidence and surgical skill.

Conclusions and relevance: The intraoral MCS training model was effective and practical. The optimal intraoral MCS training system included intraoral MCS training models and surgical templates. The system significantly decreased clinical surgery time, improved surgical accuracy, shortened the learning curve, boosted operators' confidence, and was associated with better acquisition of surgical skills.

Level of evidence: NA.

Importance: Periorbital sequelae are a significant source of early postoperative morbidity after rhinoplasty, particularly after an osteotomy is performed.

Objective: To compare postoperative periorbital sequelae after external perforating lateral osteotomy in rhinoplasty using a periosteal sweeping vs a periosteal preserving approach.

Design, setting, and participants: This prospective cohort study conducted at a tertiary referral center located in Mansoura, Egypt, included 28 patients who underwent external perforating lateral osteotomy in open rhinoplasty between January and May 2017.

Exposures: Periosteal sweeping was performed on one side of the nose and periosteal preservation was performed on the other side during external perforating lateral osteotomy.

Main outcomes and measures: Periorbital sequelae, including eyelid edema, periorbital ecchymosis, and subconjunctival hemorrhage, were assessed on both sides of the face on postoperative days 1, 7, and 21 by 2 independent surgeons using the scale first proposed by Kara and Gökalan in 1999. The scales for eyelid edema ranged from 0 to 4, for ecchymosis from 0 to 4, and for subconjunctival hemorrhage from 0 to 2, with higher values indicating greater edema, ecchymosis, and hemorrhage, respectively. Differences in the 3 time points and differences between the 2 osteotomy methods were analyzed.

Results: In total, 19 men and 9 women with a mean (SD) age of 23.7 (3.9) years were enrolled. All patients showed significant decreases in eyelid edema on postoperative days 7 and 21 compared with day 1 (1.71 and 1.39 vs 2.89 for the swept side, and 1.86 and 1.46 vs 2.68 for the preserved side; both P < .05) and in periorbital ecchymosis (2.02 and 1.13 vs 2.86 for swept side, and 2.05 and 1.13 vs 2.82 for the preserved side; both P < .05). A significant decrease in subconjunctival hemorrhage was observed on day 21 compared with days 1 and 7 (1.79 vs 2.11 and 2.11 for the swept side, and 1.71 vs 2.14 and 2.14 for the preserved side; both P < .05). The mean rank score for eyelid edema on day 1 for the swept side was significantly higher than that for the preserved side (33.18 vs 23.82, P = .02), and the mean rank score for periorbital ecchymosis on the swept side was significantly higher than that for the preserved side (33.59 vs 23.41, P = .01). Although both eyelid edema and periorbital ecchymosis appeared to remain greater on the swept side on postoperative days 7 and 21, the differences no longer reached statistical significance. Periosteal preservation was not associated with minimizing subconjunctival hemorrhage postoperatively.

Conclusions and relevance: This study suggests that lateral nasal osteotomy is associated with varying degrees of eyelid edema, periorbital ecchymosis, and subconjunctival hemorrhage. Compared with sweeping the periosteu

Importance: Identifying factors affecting forehead flap neovascularization during nasal reconstruction surgical procedures using quantitative dynamics of fluorescence from indocyanine green angiography may be associated with reduced vascular complications.

Objectives: To identify quantifiable forehead flap perfusion measures using indocyanine green angiography during nasal reconstruction procedures and to evaluate clinical factors associated with neovascularization.

Design, setting, and participants: Retrospective cohort study of 71 patients at a tertiary referral center of Stanford University, Stanford, California, between January 1, 2010, and March 31, 2018, undergoing forehead flap nasal reconstruction surgery with flap perfusion assessed by indocyanine green angiography.

Exposures: Indocyanine green angiography was performed intraoperatively to record forehead flap neovascularization during the second stage of nasal reconstruction surgery after temporary clamping of the pedicle.

Main outcomes and measures: With use of quantifiable data of fluorescence dynamics, flap perfusion in association with a reference point in the cheek after pedicle clamping was assessed by 2 methods: (1) ingress (arterial inflow) and egress (venous outflow) flap-to-cheek ratio and (2) flap-to-cheek perfusion (fluorescence) ratio at 3 time points (midpoint of indocyanine green flap inflow, maximum fluorescence [peak], and midpoint of indocyanine green flap outflow) and their calculated mean. Association of the perfusion measures with patient and procedural factors was performed using linear regression models.

Results: Of the 71 patients included in the study, 43 (61%) were men; the mean (SD) age was 71.1 (11.0) years. The mean (SD) flap-to-cheek inflow ratio was 0.48 (0.40), peak fluorescence ratio was 0.59 (0.34), and outflow ratio was 0.88 (0.42). The calculated mean (SD) flap-to-cheek perfusion ratio of these measures was 0.65 (0.35). The mean (SD) flap-to-cheek ingress ratio was 0.54 (0.36) and egress ratio was 0.65 (0.98). With use of a multivariable regression model, the time between stages was positively associated with flap-to-cheek ingress ratio (β, 0.015; 95% CI, 0.001 to 0.030), and cartilage grafting was negatively associated with flap-to-cheek outflow ratio (β, -0.240; 95% CI, -0.472 to -0.008).

Conclusions and relevance: The findings suggest that indocyanine green angiography is an effective method to quantify relative neovascularization perfusion of forehead flaps. Future applications may include the use of this technology to aid in early flap division and ensure adequate perfusion among high-risk patients.

Level of evidence: NA.

Importance: A theory on facial beauty might allow clinicians to achieve better results.

Objectives: To find the ideal vertical position of the ears, total lip length, lip pucker length, distance between the irises, and starting point for the nasal radix.

Design, setting, and participants: In this subjective survey, 11 sets of 43 total digitally adjusted pictures (DAPs) and line drawings of actual faces were ranked based on attractiveness by 419 clients at a facial plastic surgery clinic. The data were collected from July 13 to August 29, 2015, and were analyzed from September 17, 2015, to March 21, 2016.

Main outcomes and measure: Six groups of line drawings and 5 groups of DAPs of an actual person were used to test the ideal position of the ears to determine whether the face is organized into oblique and parallel relationships and whether the total lip length and the lip pucker length are associated with multiples of an iris width (IW), and to determine the start of the nasal radix and its association with the superior margin of the iris and distance between the irises.

Results: Of the 419 survey respondents, the ear aligned with the second oblique was considered the most ideal by the participants. The preferred total lip length was 4.0 IWs in the DAPs and 5.0 IWs in the line drawings. For the lip pucker length, 2.0 and 3.0 IWs were considered the best. The ideal start of the nasal radix was tangential with the superior margin of the iris. The distance of 5.5 IWs from iris to iris and 3.0 IWs from the horizontal level of the iris to the nasal tip was preferred.

Conclusions and relevance: The face may be ideally organized into 3 parallel obliques. The IW, horizontal aperture of the eye, and then iris to iris distance may best determine the size and shape of progressively larger objects in the face. The absolute position of the eye was considered important by the participants in the ideal positioning of other objects in the face.

Level of evidence: NA.