Machine learning prediction models for in-hospital postoperative functional outcome after moderate-to-severe traumatic brain injury.

AIM: This study aims to utilize machine learning (ML) and logistic regression (LR) models to predict surgical outcomes among patients with traumatic brain injury (TBI) based on admission examination, assisting in making optimal surgical treatment decision for these patients. METHOD: We conducted a retrospective review of patients hospitalized in our department for moderate-to-severe TBI. Patients admitted between October 2011 and October 2022 were assigned to the training set, while patients admitted between November 2022 and May 2023 were designated as the external validation set. Five ML algorithms and LR model were employed to predict the postoperative Glasgow Outcome Scale (GOS) status at discharge using clinical and routine blood data collected upon admission. The Shapley (SHAP) plot was utilized for interpreting the models. RESULTS: A total of 416 patients were included in this study, and they were divided into the training set (n = 396) and the external validation set (n = 47). The ML models, using both clinical and routine blood data, were able to predict postoperative GOS outcomes with area under the curve (AUC) values ranging from 0.860 to 0.900 during the internal cross-validation and from 0.801 to 0.890 during the external validation. In contrast, the LR model had the lowest AUC values during the internal and external validation (0.844 and 0.567, respectively). When blood data was not available, the ML models achieved AUCs of 0.849 to 0.870 during the internal cross-validation and 0.714 to 0.861 during the external validation. Similarly, the LR model had the lowest AUC values (0.821 and 0.638, respectively). Through repeated cross-validation analysis, we found that routine blood data had a significant association with higher mean AUC values in all ML and LR models. The SHAP plot was used to visualize the contributions of all predictors and highlighted the significance of blood data in the lightGBM model. CONCLUSION: The study concluded that ML models could provide rapid and accurate predictions for postoperative GOS outcomes at discharge following moderate-to-severe TBI. The study also highlighted the crucial role of routine blood tests in improving such predictions, and may contribute to the optimization of surgical treatment decision-making for patients with TBI.

Clinical Application of Long-Pulsed 800-Nm Diode Laser Depilation Technology on Microtia Reconstruction in 965 Patients.

BACKGROUND: The issue of hair growth on reconstructed ears has been a matter of concern for both patients and surgeons, despite the notable progress made in microtia reconstruction technology in recent times. OBJECTIVE: This study aims to present the practical implementation of long-pulsed 800-nm diode laser depilation technology in the field of auricular reconstruction. Furthermore, it seeks to establish a comprehensive and standardized protocol for utilizing lasers in the reconstruction of microtia ears. METHODS: A total of 965 patients (comprising 1021 ears) diagnosed with congenital microtia underwent treatment using 800-nm long-pulsed diode laser depilation. The participants received 1-3 treatment sessions with intervals of 25-30 days. To assess the effectiveness of the treatment, two independent observers compared photographs and measured the reduction in terminal hair count before and after the final session. Clinical outcomes were evaluated using VAS questionnaires, and any adverse events were diligently recorded. RESULTS: The findings indicated that the utilization of the long-pulsed 800-nm diode laser was both safe and efficient in achieving hair removal during microtia ear reconstruction. As additional sessions were conducted, pain scores demonstrated a decline, while adverse reactions remained minimal. LIMITATIONS: This is a retrospective single-institution study. CONCLUSION: The application of a long-pulsed 800-nm diode laser has been proved to be a safe and effective method for removing hair during the process of microtia ear reconstruction, involving the use of a tissue expander and autologous costal cartilage. To achieve satisfactory results in hair removal, it was found necessary to repeat the shots procedure two to three times. LEVEL OF EVIDENCE IV: 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 .

Machine learning models for predicting in-hospital outcomes after non-surgical treatment among patients with moderate-to-severe traumatic brain injury.

AIM: This study aims to develop prediction models for in-hospital outcomes after non-surgical treatment among patients with moderate-to-severe traumatic brain injury (TBI). METHOD: We conducted a retrospective review of patients hospitalized for moderate-to-severe TBI in our department from 2011 to 2020. Five machine learning (ML) algorithms and the conventional logistic regression (LR) model were employed to predict in-hospital mortality and the Glasgow Outcome Scale (GOS) functional outcomes. These models utilized clinical and routine blood data collected upon admission. RESULTS: This study included a total of 196 patients who received only non-surgical treatment after moderate-to-severe TBI. When predicting mortality, ML models achieved area under the curve (AUC) values of 0.921 to 0.994 using clinical and routine blood data, and 0.877 to 0.982 using only clinical data. In comparison, LR models yielded AUCs of 0.762 and 0.730 respectively. When predicting the GOS outcome, ML models achieved AUCs of 0.870 to 0.915 using clinical and routine blood data, and 0.858 to 0.927 using only clinical data. In comparison, the LR model yielded AUCs of 0.798 and 0.787 respectively. Repeated internal validation showed that the contributions of routine blood data for prediction models may depend on different prediction algorithms and different outcome measurements. CONCLUSION: The study reported ML-based prediction models that provided rapid and accurate predictions on short-term outcomes after non-surgical treatment among patients with moderate-to-severe TBI. The study also highlighted the superiority of ML models over conventional LR models and proposed the complex contributions of routine blood data in such predictions.

Key Roles of Conjunctiva Fornix-Bulbar Conjunctiva-Tenon Capsule in Conjoint Fascial Sheath Suspension.

BACKGROUND: Bulbar conjunctival prolapse is one of the complications of conjoint fascial sheath (CFS) suspension and has a negative impact on surgical results. To explore the prevention methods of this complication, the authors compared the incidence of it between the below-conjunctiva fornix-bulbar conjunctiva-Tenon capsule (CBT) approach and the above-CBT approach to dissecting CFS in CFS suspension and shared their experience in the treatment of bulbar conjunctival prolapse. METHODS: From January of 2020 to August of 2021, 81 patients with severe congenital ptosis who underwent CFS suspension were enrolled and divided into two groups. Forty-five patients' (group A) CFS was dissected by means of the below-CBT approach and 36 patients' (group B) CFS was dissected by means of the above-CBT approach. Data regarding the incidence and outcomes of bulbar conjunctival prolapse and the postoperative condition were collected and analyzed. RESULTS: The incidence of bulbar conjunctival prolapse was 24.44% in group A and 2.78% in group B. Of the 12 bulbar conjunctival prolapse patients, seven patients' conditions improved after conservative treatment, and five did not. All of them underwent bulbar conjunctiva resection within 1 year and were cured. No recurrent prolapse was observed within 3 months postoperatively. At the last follow-up, the mean marginal reflex distance 1 and palpebral fissure height were 4.09 ± 0.19 mm and 9.85 ± 0.62 mm, respectively. There were no complications except lagophthalmos (16 eyelids), asymmetric eyelid contour (one patient), and trichiasis (two eyelids). CONCLUSIONS: The incidence of bulbar conjunctival prolapse decreased significantly by dissecting CFS by means of the above-CBT approach. For patients with bulbar conjunctival prolapse after CFS suspension, bulbar conjunctiva resection could provide satisfactory results. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.

Tape Eyelid Closure: An Effective Solution for Nocturnal Lagophthalmos in Patients with Ptosis and Poor Bell's Phenomenon.

BACKGROUND: Poor Bell's phenomenon is often considered a relative contraindication for ptosis surgery, as it increases the risk of corneal exposure and dry eye symptoms after surgery. However, the Bell's phenomenon may vary in different individuals and sleep stages, making it inaccurate to predict the position of the eye during sleep based on awake examination. This study aimed to investigate the role of Bell's phenomenon in ptosis surgery and the management of nocturnal lagophthalmos. METHODS: We conducted a retrospective case series of 23 patients with ptosis and poor Bell's phenomenon who underwent different surgical techniques at Xijing Hospital from April 2020 to June 2021. We assessed Bell's phenomenon at different stages of sleep and collected data on ptosis degree, surgical approach, lagophthalmos, complications, and outcomes. RESULTS: Of the total 23 patients originally considered for study, 9 with frontalis muscle advancement technique, 8 with conjoint fascial sheath suspension, 4 with levator resection technique, and 2 with levator aponeurosis plication technique. All patients achieved satisfactory correction of ptosis. One patient had prolonged lagophthalmos and underwent reoperation to lower the eyelid height. Other complications were minor and resolved with conservative treatment. CONCLUSION: We conclude that poor Bell's phenomenon is not a relative contraindication for ptosis surgery. Nocturnal lagophthalmos should be monitored after ptosis surgery regardless of the Bell's phenomenon results. Tape eyelid closure can be an effective solution to protect the corneal surface during nocturnal lagophthalmos. LEVEL OF EVIDENCE IV: 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 .

Tape Tarsorrhaphy in the Management of Lagophthalmos Caused by Severe Congenital Blepharoptosis Procedures.

BACKGROUND: Lagophthalmos, a common complication after blepharoptosis correction, has plagued oculoplastic surgeons. The goal of this study was to investigate the effect of tape eyelid closure on reducing the occurrence of lagophthalmos after blepharoptosis correction. METHODS: From April 2020 to June 2021, a total of 112 patients with severe congenital ptosis received corrective surgery at the Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University. Of these, 48 underwent frontalis muscle advancement technique and 64 underwent conjoint fascial sheath suspension. Preoperative data collected included demographics, levator function, Bell's phenomenon, and marginal reflex distance 1 (MRD1). Postoperative data included surgery type, MRD1, eyelid closure function, aesthetic outcomes (including eyelid contour, eyelid symmetry, and eyelid crease), keratitis, and other complications. RESULTS: Frontalis muscle advancement technique group: the median of safe eye closure time was 7.3 months (positive Bell's phenomenon; interquartile range [IQR], 3.8-10.8 months) and 13.9 months (poor Bell's phenomenon; IQR, 11.6-16.1 months). There was a significant improvement between the preoperative and postoperative MRD1 (-1.52 ± 0.82 vs 3.85 ± 0.58 mm, P < 0.05). Conjoint fascial sheath suspension group: the median of safe eye closure time was 5.7 months (positive Bell's phenomenon; IQR, 2.9-8.5 months) and 12.4 months (poor Bell's phenomenon; IQR, 8.1-16.7 months). There was a significant improvement between the preoperative and postoperative MRD1 (-1.02 ± 0.91 vs 4.15 ± 1.03 mm, P < 0.05). All patients/guardians were satisfied with the aesthetic outcomes. CONCLUSIONS: Tape tarsorrhaphy is a safe, easy-to-learn method for treating lagophthalmos with a good aesthetic outcome.

The Aesthetic Evaluation of the Brow-Eye Continuum After Correction of Severe Congenital Ptosis in Children With Extended Frontalis Muscle Advancement Technique.

BACKGROUND: Severe congenital ptosis is a common ocular deformity in pediatric patients that can significantly impact visual development and aesthetic appearance, leading to negative psychosocial outcomes. The frontalis muscle advancement technique is a well-established surgical treatment for severe congenital ptosis. Aesthetic changes of the brow-eye continuum often plays an important role in ptosis surgery. METHODS: We conducted a single-center retrospective case series study of patients with severe congenital ptosis who underwent the frontalis muscle advancement technique at the Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University between April 2020 and June 2021. The study aimed to evaluate the aesthetic changes of the eyebrow-eyelid continuum after surgery. The main outcome measurements included marginal reflex distance 1, palpebral fissure height, eyebrow position, upper eyelid to lower eyebrow distance, lower eyelid to upper eyebrow distance, and nasal base to lower eyelid distance. RESULTS: The study included 48 patients (66 eyelids), with 30 unilateral and 18 bilateral patients. Our analysis found that eyebrow height decreased by an average of 4.8% postoperatively relative to preoperatively in all patients. CONCLUSIONS: The frontalis muscle advancement technique has demonstrated effectiveness in achieving aesthetically pleasing outcomes in children with severe ptosis. It is crucial to pay careful attention to the brow-eye continuum during the correction process, as its harmony can greatly impact the final result.

Hydralazine Promotes Central Nervous System Recovery after Spinal Cord Injury by Suppressing Oxidative Stress and Inflammation through Macrophage Regulation.

OBJECTIVE: This study aims to investigate the effects of hydralazine on inflammation induced by spinal cord injury (SCI) in the central nervous system (CNS) and its mechanism in promoting the structural and functional recovery of the injured CNS. METHODS: A compressive SCI mouse model was utilized for this investigation. Immunofluorescence and quantitative real-time polymerase chain reaction were employed to examine the levels of acrolein, acrolein-induced inflammation-related factors, and macrophages at the injury site and within the CNS. Western blotting was used to evaluate the activity of the phosphoinositide 3-kinase (PI3K)/AKT pathway to study macrophage regulation. The neuropathic pain and motor function recovery were evaluated by glutamic acid decarboxylase 65/67 (GAD65/67), vesicular glutamate transporter 1 (VGLUT1), paw withdrawal response, and Basso Mouse Scale score. Nissl staining and Luxol Fast Blue (LFB) staining were performed to investigate the structural recovery of the injured CNS. RESULTS: Hydralazine downregulated the levels of acrolein, IL-1ß, and TNF-α in the spinal cord. The downregulation of acrolein induced by hydralazine promoted the activation of the PI3K/AKT pathway, leading to M2 macrophage polarization, which protected neurons against SCI-induced inflammation. Additionally, hydralazine promoted the structural recovery of the injured spinal cord area. Mitigating inflammation and oxidative stress by hydralazine in the animal model alleviated neuropathic pain and altered neurotransmitter expression. Furthermore, hydralazine facilitated motor function recovery following SCI. Nissl staining and LFB staining indicated that hydralazine promoted the structural recovery of the injured CNS. CONCLUSION: Hydralazine, an acrolein scavenger, significantly mitigated SCI-induced inflammation and oxidative stress in vivo, modulated macrophage activation, and consequently promoted the structural and functional recovery of the injured CNS.

Modified Levator Resection Technique for Moderate Congenital Blepharoptosis.

BACKGROUND: For moderate ptosis associated with fair levator function (LF), the levator resection is the most commonly used procedure. However, the levator resection technique still has some disadvantages, such as residual lagophthalmos (RL), undercorrection, conjunctival prolapse, and eyelid contour abnormality. To solve the above problems, our team have made modifications to the levator resection technique in three aspects: releasing the levator muscle sufficiently, preserving the supporting structure of the conjunctiva, and placing multiple suture sites. METHODS: Fifty-seven patients (81 eyes) underwent the modified levator resection technique and were enrolled in the study. Preoperative data collected included age, sex, margin reflex distance 1 (MRD1), and LF. Postoperative data collected included MRD1, RL, patient satisfaction, complications, and length of follow-up. RESULTS: Mean MRD1 significantly increased from 1.45 ± 0.65 mm preoperatively to 3.57 ± 0.51 mm postoperatively. Mean LF significantly increased from 6.49 ± 1.12 mm preoperatively to 9.48 ± 1.39 mm postoperatively. Successful correction was obtained in 77 eyes (95.1%). Mean RL was 1.09 ± 0.57 and 72 eyes (88.9%) showed excellent or good eyelid closure function. Fifty-four patients (94.7%) were completely satisfied with the final result. Complications such as hematoma, infection, conjunctival prolapse, suture exposure, corneal abrasion, and keratitis were not found in any cases during follow-up. CONCLUSION: This modified levator resection technique introduced in this study is effective in correcting moderate congenital blepharoptosis, while minimizing RL, undercorrection, conjunctival prolapse, eyelid contour abnormality by releasing the levator muscle sufficiently, preserving the supporting structure of the conjunctiva, and placing multiple suture sites. LEVEL OF EVIDENCE IV: This journal requires that authors 42 assign a level of evidence to each article. For a full 43 description of these Evidence-Based Medicine ratings, 44 please refer to the Table of Contents or the online 45 Instructions to Authors www.springer.com/00266 .

Exploring the motivations for pursuing operative labiaplasty in Chinese patients.

This study aimed to investigate the motivations for Chinese patients seeking operative labiaplasty. Data was collected from January 2018 to December 2019 using a standardized questionnaire, which examined factors influencing patients' motivations, including aesthetic and functional reasons, as well as psychological factors. Of the 216 patients who responded to the questionnaire within 24 months, 22.2% cited cosmetic reasons, while 38.4% reported functional discomfort. Both functional and aesthetic reasons were cited by 35.2% of patients, while 4.2% reported psychological troubles. It is noteworthy that patients who sought surgical intervention for physical complaints did so as a personal decision, and only 6.3% of patients seeking labiaplasty for cosmetic reasons were influenced by their sexual partner. Additionally, 7.9% and 66.7% of patients with other motivations were influenced by their male spouse, while 2.6% and 33.3% were influenced by the media. In conclusion, this study suggests that most Chinese patients seek labiaplasty for functional reasons, with few being influenced by sexual partners or media.Impact statementWhat is already known on this subject? The growing demand and interest in labiaplasty surgery has been widely acknowledged. Existing reports from western countries have highlighted that aesthetic concerns are the primary motivations behind patients' requests for this surgical intervention. However, there is limited information available regarding the factors influencing Chinese patients' decisions to undergo labiaplasty, as China has a large population. Therefore, the specific reasons behind Chinese patients' requests for labiaplasty are not well understood.What do the results of this study add? This clinical study focuses on the perspectives of eastern women regarding labia reduction surgery, contributing to the existing literature on this topic. Notably, this study is one of the few that examines the request for surgical reduction of hypertrophy of the labia minora and highlights that not all patients undergo surgical intervention purely for personal reasons.What are the implications of these findings for clinical practice and/or further research? The implications of these findings for clinical practice and further research are significant. Given the increasing demand for labiaplasty, gynecologists in Australia, Western Europe, the United States, and New Zealand are likely to encounter a rising number of women seeking labial reduction surgery. Similarly, labiaplasty has become an increasingly popular cosmetic surgery procedure in China. This study's results differ from previous research, which suggested that functional concerns were the primary motivation for women seeking to undergo labiaplasty. The request for pursuing labiaplasty is influenced not only by personal preferences but also by external factors. Therefore, a comprehensive evaluation before considering the procedure is crucial, and if practitioners are unsure, multidisciplinary specialized evaluation should be considered.

BL02, a phage against carbapenem- and polymyxin-B resistant Klebsiella pneumoniae, isolated from sewage: A preclinical study.

The emergence of Carbapenem-resistant Klebsiella pneumoniae (CRKP) represents a threat to public health. Polymyxin-B is generally considered a last-resort antibiotic. In this study, we isolated a carbapenem- and polymyxin-B resistant K. pneumoniae phage BL02 for the first time in Southwestern China and evaluated its biological characteristics and whole-genome sequence. Polymyxin-B resistant K. pneumoniae, (CK02), was isolated from the blood of a male with severe septic shock, and phage BL02 was screened and purified from the hospital sewage. BL02 could lyse 40 out of 46 CRKP isolates (86.96%) and has high activity in the pH range of 6-10 and the temperature range of 4-55 °C. The latency period of BL02 was about 10 min and the lysis period was about 50 min. The genome results showed that BL02 was a linear dsDNA with a total length of 175,595 bp and a GC content of 41.83%. A total of 275 ORFs were predicted and no tRNA, rRNA, drug resistance genes, or virulence genes were found in the genome. Phylogenetic analysis showed that BL02 belongs to the family Straboviridae. Treatment of infected mice with two antibiotics (tigecycline or ceftazidime/avibactam) resulted in 7-day survival rates of 28.57% and 42.86%, respectively. In contrast, the survival rate of mice in the single-dose BL02-treated group was 71.43%. In summary, this preclinical study isolated a phage capable of lysing polymyxin-B resistant K. pneumoniae and validated its safety and efficacy in an in vivo model, which provides a reference for further research on controlling MDR pathogens.

Extended Frontalis Muscle Advancement Technique for Severe Congenital Blepharoptosis.

BACKGROUND: The conventional frontalis muscle advancement technique still has some disadvantages, such as residual lagophthalmos, eyebrow ptosis, eyelid contour abnormality, and undercorrection. This article describes the authors' extended frontalis muscle advancement technique, which takes extensive subcutaneous separation through the eyelid crease incision for the treatment of severe congenital blepharoptosis. METHODS: A retrospective review was performed that included patients with severe congenital ptosis who underwent extended frontalis muscle advancement technique from April of 2019 to April of 2021. Preoperative evaluation included age, sex, and margin reflex distance 1, levator function, and lagophthalmos. Postoperative evaluation including correction result, closure function of eyelid, and cosmetic result was performed at the last follow-up. RESULTS: From April of 2019 to April of 2021, a total of 102 patients (137 eyes) who underwent extended frontalis muscle advancement technique were included in the study. The mean postoperative margin reflex distance 1 in unilateral and bilateral ptosis patients was 3.84 ± 0.60 mm and 3.86 ± 0.56, respectively, and 126 eyes (92.0%) showed successful correction. Postoperatively, the mean residual lagophthalmos was 0.88 ± 1.40 mm, and 127 eyes (92.7%) showed excellent or good eyelid closure function. The average score of cosmetic results was 8.29 ± 1.34, and 94 patients (92.2%) had an excellent or good cosmetic result. CONCLUSIONS: Extensive subcutaneous separation relieves the mutual restriction between the forehead skin and frontalis muscle. The extended frontalis muscle advancement technique is effective in correcting severe congenital ptosis, and minimizes undercorrection, residual lagophthalmos, eyelid contour abnormality, and eyebrow ptosis. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.

Potent predictive CpG signature for temozolomide response in non-glioma-CpG island methylator phenotype glioblastomas with methylated MGMT promoter.

Aim: We aimed to identify potent CpG signatures predicting temozolomide (TMZ) response in glioblastomas (GBMs) that do not have the glioma-CpG island methylator phenotype (G-CIMP) but have a methylated promoter of MGMT (meMGMT). Materials & methods: Different datasets of non-G-CIMP meMGMT GBMs with molecular and clinical data were analyzed. Results: A panel of 77 TMZ efficacy-related CpGs and a seven-CpG risk signature were identified and validated for distinguishing differential outcomes to radiotherapy plus TMZ versus radiotherapy alone in non-G-CIMP meMGMT GBMs. An integrated classification scheme was also proposed for refining a MGMT-based TMZ-guiding approach in all G-CIMP-GBMs. Conclusion: The CpG signatures may serve as promising predictive biomarker candidates for guiding optimal TMZ usage in non-G-CIMP meMGMT GBMs.

Glioblastomas that do not have the glioma-CpG island methylator phenotype (G-CIMP) but have a methylated promoter of the MGMT gene (meMGMT) show considerable variability in their response to temozolomide (TMZ). Powerful biomarkers that provide predictive information on optimal TMZ decision-making can be clinically useful. This study has identified and validated a panel of 77 TMZ efficacy-related CpGs and a seven-CpG risk signature for predicting TMZ usage in non-G-CIMP meMGMT glioblastomas. An integrated classification scheme is proposed for refining a MGMT-based TMZ-guiding approach in non-G-CIMP glioblastomas.

Simultaneous Double Eyelid Blepharoplasty and Blepharoptosis Correction With Levator Aponeurosis Plication Technique: Clinical Experience of 108 Cases.

BACKGROUND: Fifty percent of Asians are born without a supratarsal fold (also called single eyelid), and double eyelid blepharoplasty is one of the most commonly performed and most popular facial cosmetic surgeries in the Asian population. However, patients with single eyelid frequently present with concomitant mild blepharoptosis (degree of ptosis, ≤2 mm), which often fails to cause the attention of surgeons and misses correction. METHODS: A retrospective study of all patients who underwent double eyelid blepharoplasty and blepharoptosis correction simultaneously with the modified levator aponeurosis plication technique was performed from June of 2017 to June of 2020. RESULTS: A total of 108 patients (155 eyelids) underwent double eyelid blepharoplasty and blepharoptosis correction simultaneously with the modified levator aponeurosis plication technique and were enrolled in the study. The average follow-up period was 11.8 ± 4.5 months. There was a statistically significant difference between the preoperative margin reflex distance 1 (MRD1) and postoperative MRD1 (2.93 ± 0.37 vs 4.21 ± 0.39 mm, P = 0.000), and the mean MRD1 improvement was 1.28 ± 0.50 mm. Sufficient correction was obtained in 148 eyelids (95.5%), whereas undercorrection was observed in 5 eyelids (3.2%) and overcorrection was observed in 2 eyelids (1.3%). One hundred two patients (94.4%) were completely satisfied with the final result.All patients had smooth and elegant upper eyelid margin curve, and no patients complained of distortion of the eyelid margin contour and foreign body sensation.There were no cases of hematoma, infection, suture exposure, corneal abrasion, and keratitis in any patient. CONCLUSIONS: This modified levator aponeurosis plication introduced in this study is a simple and effective method for creating double-eyelid crease and correcting mild blepharoptosis simultaneously, and provides a satisfactory outcome. As such, we recommend this method in treating patients with both single eyelid and mild blepharoptosis.

Aesthetic Changes of Brow-Eyelid Continuum After Correction of Moderate-Severe Blepharoptosis with Conjoint Fascial Sheath Suspension.

BACKGROUND: As periorbital aesthetic commonly improved in blepharoptosis patients after correction surgery, the aim of this study was to elaborate the brow-eyelid continuum changes in moderate-severe ptosis patients who underwent conjoint fascial sheath suspension systematically. METHODS: Patients with moderate-severe ptosis who underwent conjoint fascial sheath suspension were assessed by using pre- and post-operative digital photographs in the primary gaze position of the eye. The main outcome measurements included marginal reflex distance1 (MRD1), palpebral fissure height (PFH), eyebrow position, the symmetry of face and the horizontal forehead lines condition. RESULTS: There were 43 patients (53 eyelids) in our study, including 33 unilateral and 10 bilateral patients. The mean levator function was 3.00 ± 1.07 mm. Before surgery, the mean MRD1 and PFH were 0.60 ± 1.14 mm and 6.75 ± 1.71 mm, respectively. The mean eyebrow height at medial, center, lateral position was 33.16 ± 3.95 mm, 35.99 ± 4.02 mm and 34.35 ± 4.80 mm, respectively. It was found that MRD1 and PFH symmetry both were 23.26% and eyebrow symmetry was 62.79%. For forehead wrinkles, 48.84% of the patients was mild, 34.88% was moderate, and 16.28% was severe. The average follow-up was 12.78 months (ranged from 12 to 18 months). One month after surgery, the mean MRD1 and PFH were 5.68 ± 0.86 mm, 11.61 ± 0.97 mm, respectively, both of which improved significantly (P < 0.0001). The mean eyebrow height at medial, center, lateral position descended to 28.22 ± 4.77 mm (P = 0.017), 31.41 ± 4.58 mm (P = 0.033) and 30.28 ± 3.41 mm (P = 0.018), respectively. The result showed that the rate of patients with MRD1 symmetry was 32.56%, PFH symmetry was 30.23%, and eyebrow symmetry was 90.7%. For forehead wrinkles, 69.77% was mild and 30.23% was moderate. Then, patients' eyebrow gradually elevated, while their upper eyelid dropped. At the last follow-up, the mean MRD1 and PFH were 3.83 ± 0.98 mm and 9.84 ± 1.56 mm, respectively. The mean eyebrow height at medial, center, lateral position improved to 30.52 ± 4.59 mm (P = 0.031), 32.40 ± 4.68 mm (P = 0.033), 31.19 ± 4.16 mm (P = 0.028), respectively. The patients with MRD1 symmetry accounted for 86.05%, PFH symmetry 86.05%, and eyebrow symmetry 90.7%. For forehead wrinkles, 67.44% was mild and 32.56% was moderate. CONCLUSION: CFS suspension can effectively reconstruct moderate-severe ptosis patients' aesthetics of the brow-eyelid continuum by descending elevated eyebrow, improving facial symmetry and reducing forehead rhytids. LEVEL OF EVIDENCE IV: 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 .

Conjoint Fascial Sheath Suspension for Correction of Recurrent Blepharoptosis.

BACKGROUND: Blepharoptosis is defined as an abnormally low-positioned upper eyelid margin in the primary gaze position, which results in cosmetic discomfort and functional visual dysfunction. Recurrence is one of the common complications after ptosis correction and requires further revision. Conjoint fascial sheath (CFS) suspension has become increasingly popular for ptosis. In this article, we described our experience of CFS suspension in the treatment of recurrent blepharoptosis and evaluated the postoperative outcomes so as to guide the clinical application of CFS suspension. METHODS: Thirty-eight patients (48 eyelids) who had recurrent blepharoptosis and received CFS suspension were included in this study. Before the surgery, the degree of ptosis and levator function were assessed. The postoperative evaluation consisted of the correction effect, eyelid symmetry, protective closure function of eyelid, and surgical complications. RESULTS: At the final follow-up, 46 eyelids (95.8%) showed an ideal correction, of which 24 eyelids (50%) showed sufficient correction and 22 eyelids (45.8%) showed normal correction. The remaining 2 eyelids (4.2%) showed under-correction. Among all 38 patients, 26 patients (68.4%) achieved good symmetry, and 10 patients (26.3%) achieved fair symmetry, while only 2 patients (5.3%) showed poor symmetry. Recovery time of eyelid protective closure function was 3.9 ± 1.04 months (range, 2.5-6 months). There were no complications except residual lagophthalmos (9 eyelids) residual conjunctival prolapse (10 eyelids). CONCLUSION: CFS suspension is an effective method for the correction of recurrent blepharoptosis due to its sufficient correction effect, recovery of eyelid protective closure function, and less complication rate. LEVEL OF EVIDENCE IV: 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 .

[Reconstruction of facial soft tissue defects with free flaps by microsurgery].

OBJECTIVE: To investigate the method and indications for reconstruction of facial complicated soft tissue defects with free flaps by microsurgery. METHODS: 37 patients (16 males and 21 females, aged from 1 to 54 years) with different size of facial soft tissue defects were reconstructed with free flaps, including 10 latissimus dorsi myocutaneous flaps, 3 thoracodorsal artery perforator flaps, 9 scapular flaps, forearm flaps and 9 postauricular flaps. The defects size ranged from 1 cm x 2 cm to 25 cm x 12 cm. RESULTS: Venous obstruction happened in 3 postauricular flaps, resulting partial necrosis in 2 flaps. All the other flaps survived completely. The cosmetic and functional results were both satisfactory. CONCLUSIONS: The facial complicated soft tissue defects can be treated successfully with free flaps by microsurgery. The wounds can be healed primarily with short recovery time and reliable cosmetic and functional result.

[Effect of METH1 gene transfection on the proliferation of rabbit's ear scar].

OBJECTIVE: To investigate the effect of METH1 gene transfection on fibroblast proliferation and I, III collagen synthesis in rabbit ear scar. METHODS: The hypertrophic scar model on the rabbit ears was reproduced. 10 days after epithelization, Ad-METH1 was injected into the scar tissue. 30 days later, the effect of METH1 gene transfection on the angiogenesis, fibroblast proliferation and the ratio of collagen I/III in the scar tissue was detected by microcirculation microscope, AgNOR particle count and collagen dyeing. RESULTS: 30 days after injection of Ad-METH1, angiogenesis, fibroblast proliferation and the ratio of collagen I/III in the scar tissue were obviously suppressed. CONCLUSION: Early application of Ad-METH1 after epithelization can markedly inhibit the formation of the hypertrophic scar.