Assessment of deep plane facelift in facial feminization surgery: A prospective pilot study

Laser Speckle Contrast Imaging Guides Needling Treatment of Vascular Complications from Dermal Fillers

We have read the article titled "Laser Speckle Contrast Imaging Guides Needling Treatment of Vascular Complications from Dermal Fillers" by Tsai et al. in Aesthetic Plastic Surgery, and we are deeply interested in their research. The study explores the use of laser speckle contrast imaging (LSCI) for evaluating and treating vascular complications in six patients who experienced issues after facial dermal filler injections. The authors found that LSCI accurately and noninvasively identified vascular occlusions in real time, surpassing the accuracy of visual and photographic assessments. This suggests that LSCI can be a valuable tool for clinicians to monitor therapeutic outcomes following interventions for vascular occlusions. While we appreciate the study's significance and quality, we have specific concerns regarding the methodologies employed to prevent complications related to hyaluronic acid (HA). Understanding the properties of the active substance is crucial for standardization in medical treatments. A comprehensive understanding of HA's essential characteristics is vital to determine if correlations exist between these properties, treatment outcomes, and the risk of complications. Key considerations include rheology, which studies how matter flows and deforms under strain, viscosity, elasticity, cohesiveness, and gel texture. These factors play a vital role in the safety and efficacy of dermal filler treatments.Level of Evidence V 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 .

Effectiveness and Role of Using Hyaluronic Acid Injections for Gluteal Augmentation: A Comprehensive Systematic Review of Techniques and Outcomes

We have reviewed the article "Effectiveness and Role of Using Hyaluronic Acid Injections for Gluteal Augmentation: A Comprehensive Systematic Review of Techniques and Outcomes" by Mortada et al. in Aesthetic Plastic Surgery with keen interest. This study aims to comprehensively assess the effectiveness and role of hyaluronic acid (HA) in gluteal augmentation. However, we raise concerns about the methodologies employed in the reviewed studies. For effective treatments, understanding the properties of the active substance is essential for standardization. Thoroughly grasping the key characteristics of the employed HAs is vital to identify correlations between these properties, outcomes, and complication risks. Understanding HA's rheological properties, including viscosity, elasticity, and cohesiveness, is pivotal for selecting appropriate dermal fillers for the gluteal region. Another significant aspect of HA use is cohesiveness, arising from internal adhesion based on HA concentration and cross-linking. This cohesiveness resists vertical forces upon implantation, influencing tissue lifting and projection. Gel texture, influenced by Cross-Linking Degree, Particle Size, Molecular Weight, and HA Concentration, also plays a crucial role. While acknowledging authors' contributions, further analysis should consider these factors. LEVEL OF EVIDENCE V: 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 .

Myomodulation with Facial Fillers: A Comprehensive Technical Guide and Retrospective Case Series

The article titled "Myomodulation with Facial Fillers: A Comprehensive Technical Guide and Retrospective Case Series" by Coimbra et al. in Aesthetic Plastic Surgery presents a technical guide for holistic facial treatment using hyaluronic acid (HA) fillers and a map for addressing individual facial units through myomodulation. The authors' approach is appreciated for its value. However, concerns arise about the employed methodologies. Understanding HA's properties is vital for treatment standardization. The significance of HA's rheological properties, encompassing viscosity, elasticity, and cohesiveness, is critical for optimal dermal filler selection. The authors' insights are acknowledged, yet further analysis considering these factors is recommended. LEVEL OF EVIDENCE V: 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 .

A Two-Center, Prospective, Randomized Controlled Trial to Evaluate the Efficacy and Safety of and Satisfaction with Different Methods of ART FILLER® UNIVERSAL Injection for Correcting Moderate to Severe Nasolabial Folds in Chinese Individuals

The article titled "A Two-Center, Prospective, Randomized Controlled Trial to Evaluate the Efficacy and Safety of and Satisfaction with Different Methods of ART FILLER® UNIVERSAL Injection for Correcting Moderate to Severe Nasolabial Folds in Chinese Individuals," authored by Feng et al. in Aesthetic Plastic Surgery, aims to compare two hyaluronic acid (HA) injection techniques for enhancing nasolabial folds: the conventional injection method and the ligament injection method. However, concerns have arisen regarding the methodology employed in this study. Having a precise understanding of the properties of the active substance is crucial for treatment standardization. It is imperative to comprehensively grasp the key characteristics of the employed HAs to determine any potential correlation between these properties, outcomes, and the likelihood of complications. Understanding HA's rheological properties, including viscosity, elasticity, and cohesiveness, is essential for selecting the most appropriate facial filler. While recognizing the authors' contributions, we firmly believe that further analysis should encompass these factors.Level of Evidence V 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 .

Adverse Events Associated with Hyaluronic Acid Filler Injection for Non-Surgical Facial Aesthetics: A Systematic Review of High Level of Evidence Studies

The article titled "Adverse Events Associated with Hyaluronic Acid Filler Injection for Non-surgical Facial Aesthetics: A Systematic Review of High Level of Evidence Studies" by Kyriazidis et al.in Aesthetic Plastic Surgery presents a systematic review focused on categorizing complications linked to hyaluronic acid (HA) dermal fillers. However, concerns arise about the methodologies employed in the reviewed studies. Precise knowledge of the active substance's properties is vital for treatment standardization. Gaining a comprehensive understanding of the key characteristics of the employed HA is of paramount importance to ascertain whether an association exists between these properties and the risk of complications. Understanding the rheological properties of HA, including viscosity, elasticity, and cohesiveness, is crucial for optimal facial filler selection. Acknowledging the authors' contributions, further analysis should encompass these factors.Level of Evidence V 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 .

Assessment of deep plane facelift combined with fascia lata graft for the static treatment of facial palsy: A preliminary report

Addressing facial palsy (FP) presents intricate challenges in achieving natural expressions. Although free functional muscle transfers (FFMT) offer effective smile restoration, age impacts their efficacy. The optimal FFMT age range of 5-55 years is limited by physical fitness, which extends beyond age boundaries. Unilateral FP demands vary; younger patients require dynamic solutions like FFMT, whereas older individuals prioritize public appearance due to baseline distortion. The aim of this study is to describe and to assess a new static technique combining deep plane facelift and fascia lata graft for FP treatment. We conducted a prospective pilot study enrolling unilateral FP patients aged >55 and declining FFMT. Exclusions encompassed prior FP surgery, recent injections, uncontrolled diabetes cognitive deficits, and patients unable to quit smoking. To evaluate this technique, the Glasgow Benefit Inventory (GBI), along with two objective scales, the Face- and Neck-Lift Objective Photo-Numerical Assessment Scale and the eFACE scale, were used. Interrater reliability and intrarater reliability were assessed. Fifteen patients (mean age: 60.9 years) underwent the procedure. Both static and dynamic symmetry significantly improved (p < 0.05), including check volume and position, oral commissure, and jawline. Notably, eye closure enhancement was observed. GBI scores also significantly increased (p < 0.05). Interrater reliability and intrarater reliability were minimal (p = 0.12 and p = 0.13). This combined approach offers a static FP treatment option, especially for the elderly or FFMT-ineligible patients. The relatively brief procedure yields immediate and satisfactory results, suggesting its potential value in FP management. Further comprehensive studies are encouraged to validate the technique's long-term efficacy and applicability across larger populations.

Rhinofiller: Fat Grafting (Surgical) Versus Hyaluronic Acid (Non-surgical)

We conducted a thorough examination of the paper titled " Rhinofiller: Fat Grafting (Surgical) Versus Hyaluronic Acid (Non-surgical)" authored by Gentile et al. in Aesthetic Plastic Surgery with significant interest. The author shared their practical insights gained from employing "fat grafting" and "hyaluronic acid" methods for nasal remodeling in a randomized controlled trial. The research is notably captivating and executed with commendable proficiency. However, we do hold specific reservations concerning the methodologies employed. Precise understanding of the properties of the active substances utilized is fundamental for any medical intervention, and standardization stands as a pivotal element. It is essential to grasp the core characteristics of the administered HAs to potentially uncover links between these attributes, resulting outcomes, and possible complications. In the context of tissue volumization using fillers, rheology-an investigation into material flow and deformation under stress-holds particular importance. Gaining a comprehensive understanding of HA's rheological properties is imperative, especially when selecting an appropriate dermal filler for nasal applications. Among the critical properties of HA are viscosity, elasticity, and cohesiveness. While acknowledging the valuable contributions made by the authors, it is imperative that further analysis takes into account these influential factors during the course of their investigation. LEVEL OF EVIDENCE V: 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 .

The Use of Hyaluronic Acid in Non-surgical Rhinoplasty: A Systematic Review of Complications, Clinical, and Patient-Reported Outcomes

We reviewed the article titled "The Use of Hyaluronic Acid in Non-surgical Rhinoplasty: A Systematic Review of Complications, Clinical, and Patient-Reported Outcomes" authored by Mortada et al. in Aesthetic Plastic Surgery with considerable interest. This study presents a meticulous systematic review of research examining clinical and patient-reported results in hyaluronic acid (HA) non-surgical rhinoplasty. However, we hold specific reservations about the methodologies employed in the studies encompassed within their analysis. Precise comprehension of the properties of the utilized active substance is essential for any treatment, with standardization being a key factor. Understanding the essential characteristics of the administered HAs is pivotal to establish potential connections between these attributes, outcomes, and complications. Of particular importance in the clinical application of tissue volumization via fillers is rheology, the study of material flow and deformation under stress. Gaining insight into HA's rheological properties is imperative when selecting an appropriate dermal filler for nasal applications. Three pivotal HA properties are viscosity, elasticity, and cohesiveness. While appreciating the authors' contributions, further analysis should account for these factors in their investigation.Level of Evidence V 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 .

Nonsurgical Chin Augmentation Using Hyaluronic Acid: A Systematic Review of Technique, Satisfaction, and Complications

The article titled "Nonsurgical Chin Augmentation Using Hyaluronic Acid: A Systematic Review of Technique, Satisfaction, and Complications" by Ou et al. in Aesthetic Plastic Surgery presents a systematic review focused on categorizing complications associated with hyaluronic acid (HA) dermal fillers. However, concerns arise regarding the methodologies employed in the reviewed studies. It is essential to have precise knowledge of the properties of the active substance for treatment standardization. Gaining a comprehensive understanding of the key characteristics of the HA used is paramount to determine if there is an association between these properties and the risk of complications.Understanding HA's rheological properties, including viscosity, elasticity, and cohesiveness, is crucial for selecting the most suitable facial filler. While we acknowledge the authors' contributions, we strongly believe that further analysis should incorporate these factors.Level of Evidence V 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 .