The latest medical research on Cosmetic Medicine

The research magnet gathers the latest research from around the web, based on your specialty area. Below you will find a sample of some of the most recent articles from reputable medical journals about cosmetic medicine gathered by our medical AI research bot.

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Impact of acid and laser etching of enamel on microleakage in different adhesive systems.

Lasers in Medical Science

This study aimed to evaluate the microleakage of light-cured and self-cured adhesives on enamel surfaces selectively etched with Er, Cr: YSGG laser...

Novel single-entry point injection technique for masseter hypertrophy treatment using botulinum neurotoxin based on patient-reported comfort.

J Cosmet Dermatol

Botulinum neurotoxin (BoNT) injections are widely used for the treatment of masseter muscle hypertrophy in Southeast Asia. However, there remains a lack of consensus regarding the optimal injection technique. This study aimed to compare the efficacy and patient discomfort associated with single-entry point injections versus multiple three-point injections for masseter muscle hypertrophy treatment with BoNT.

Sixteen participants, comprising both male and female Korean adults aged 22-63, were enrolled in the study. On the left side of the face, single-entry point injections were administered, followed by multidirectional injections, while on the right side, three-point injections were given. Pain intensity during the procedure was assessed using visual analogue scale scores.

Our results revealed that participants experienced lower levels of pain with single-entry point injections compared to three-point injections (average visual analogue scores of 3.31 and 5.19, respectively).

These findings highlight the potential benefits of single-entry point injections in reducing patient discomfort during masseter muscle hypertrophy treatment with BoNT. We advocate for further research to validate these findings and encourage practitioners to consider single-entry point injections as a viable option for enhancing treatment outcomes in their clinical practice.

Tyndall, Rayleigh, Mei, and Raman scattering: Understanding their role in aesthetics.

J Cosmet Dermatol

The role of various light scattering phenomena in aesthetics and clinical practice is explored in this review. Four main types of light scattering,...

Childhood eczema prevalence in New Zealand using topical corticosteroid dispensing data.

Australasian Journal of Dermatology

To determine the prevalence of eczema among children in New Zealand.

Population-based retrospective observational study utilising national pharmaceutical dispensing records for topical corticosteroids and emollients for all New Zealand children aged 0-14 years from 1st January 2006 to 31st December 2019. Data are reported using descriptive statistics, with comparisons between ethnicities and socioeconomic quintiles undertaken with rate ratios.

Based on dispensing data, the prevalence of eczema for New Zealand children aged 0-14 years in 2018 was 14.0% (95% CI 14.0%-14.1%), with prevalence decreasing in older age groups (children aged <1 year 26.0% (25.6%-26.4%); children aged 10-14 years 8.8% (8.7%-8.9%)). Prevalence was higher in Pacific children (23.6% (23.3%-24.0%)), but slightly lower in Māori children (13.2% (13.0%-13.3%)).

Eczema is a common condition affecting a considerable proportion of children in New Zealand. This study provides nationwide paediatric prevalence data for New Zealand, and highlights the increased burden of eczema in Pacific children. Inequity in dispensing of topical corticosteroids is postulated to explain the reduced rates found for Māori children compared to previous studies. These results support the need for further research to determine factors contributing to differing eczema prevalence rates in New Zealand.

Experimental study on the safety of photobiologic regulation therapy in the treatment of some non-epidermal tumors.

Lasers in Medical Science

This study investigates the impact of Photobiomodulation (PBM) at different wavelengths on non-superficial cancer cells. Utilizing three laser prot...

Complications of Superomedial Versus Inferior Pedicle Reduction Mammaplasty: A Systematic Review and Meta-Analysis.

Aesthetic Plastic Surgery

The superomedial pedicle reduction mammoplasty has gained popularity and is an important alternative approach for reduction mammoplasty, while the inferior pedicle reduction mammaplasty remains by far the most performed as it is considered to provide the best vascularization to the nipple-areola complex, allowing safe removal of large amount of redundant tissue. The authors conducted the first systematic review and meta-analysis in an attempt to declare the differences of the superomedial pedicle versus the inferior pedicle reduction technique by comparing the postoperative complications.

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 .

Twelve observational comparative studies were included. The superomedial pedicle technique had a statistically lower rate of overall complications (OR 0.59, 95% CI 0.47-0.75; p < 0.0001) and delayed wound healing (OR 0.46, 95% CI 0.33-0.64; p < 0.00001) than the inferior pedicle technique. No significant differences in wound dehiscence, infection, seroma, hematoma, skin necrosis, fat necrosis, NAC necrosis, nipple sensation decrease or loss, asymmetry, hypertrophic scarring, and reoperation were noted.

Both two techniques are equally safe and reliable, while the superomedial pedicle technique resulted in a statistically lower rate of overall complications and delayed wound healing.

Mandibular Ligament and the Prejowl Sulcus Explained.

Aesthetic Surgery Journal

The exact relationship between the jowl and the mandibular ligament as well as causes for jowling remains unclear in the literature. The anatomic basis for the jowl is multifactorial and disparities in descriptions of the mandibular ligament and prejowl sulcus have resulted in variations in its management.

The aim of this paper is to clarify the anatomy and aging around the prejowl sulcus and the mandibular ligament and review our experience with its management in facial rejuvenation.

We performed a retrospective blinded review of patients in a high-volume private practice comparing patients who underwent mandibular ligament release in a subdermal plane during facelifting versus those who solely underwent fat grafting of the prejowl sulcus with facelifting. Blinded surgeons graded 25 patients who had undergone mandibular ligament release vs. 25 patients who did not. Patient photographs were scored on a 1-4 graded scale of correction on the degree of jowling, prejowl sulcus depth and color. We also performed a literature review to describe the anatomy of the mandibular ligament and its implications in jowls, and techniques to address it in facial rejuvenation.

Patients who had fat grafting with minimal or no release of the skin around the prejowl sulcus or mandibular ligament had a greater degree of correction of their jowls in their postoperative photographs compared to those who had a mandibular ligament release without fat grafting (p=0.046). Adverse sequelae were also lower in the group with less skin dissection around the mandibular ligament.

Our findings support the theory that the appearance of tethering and depression in the prejowl sulcus is more likely the cause of atrophy in the subdermal soft tissues rather than a consequence of ligamentous contracture. Volumetric replenishment with fat grafting provides a more direct solution to the cause of the issue, providing more universal improvements with less risk. Surgeons should consider volumetric fat grafting with or without subsequent subdermal release if needed.

Treatment of masseter muscle hypertrophy with botulinum toxin type A injection: A review of adverse events.

J Cosmet Dermatol

The popularity of noninvasive botulinum toxin type A (BTX-A) injections for masseter muscle hypertrophy is increasing among Asian individuals with a square-shaped lower face.

This study aimed to analyze the adverse events (AEs) caused by BTX-A injections into the masseter muscle.

This observational study retrospectively evaluated 46 250 patients who underwent BTX-A injections into the masseter muscle in 2022. The inclusion criteria were the diagnosis of an AE by the physician at the return visit and subsequent follow-up of progress (n = 223). The patients who were lost to follow-up (n = 40) were excluded from the study.

Among the 223 patients with AEs, the most common AE was paradoxical bulging (88.3%, n = 197/223). The average period from treatment until confirmation of improvement was 159.6 ± 113.6 days (range 13-667 days) for all AEs, all of which were temporary. The period until improvement was 166.1 days in the intervention group (n = 122) and 151.9 days in the observation group (n = 101) (p = 0.24). As the period until improvement of AEs included the period until the patients visited the clinics and the improvements were confirmed by physicians, the actual period was likely to have been shorter.

(1) All AEs were temporary. (2) All AEs improved within 22.2 months (within 5.3 ± 3.8 months on average). (3) There was no significant difference between the intervention and observation groups in the period until the improvement of AEs.

Efficacy of 0.25% Lidocaine Versus 0.5% Lidocaine in Dermatologic Surgery: A Double-Blind, Randomized Controlled Trial.

Dermatol Surg

Although lidocaine is widely used in dermatologic surgery, no formal standard concentration is established. Previous research indicates that more dilute concentrations may offer equally effective anesthesia while potentially reducing toxicity risks. In addition, diluting commercially available lidocaine conserves supplies-a significant benefit during periods of lidocaine shortage.

To evaluate the efficacy of 0.25% lidocaine compared with that of 0.5% lidocaine in achieving anesthesia in cutaneous surgery.

A prospective, double-blind study with 100 patients undergoing cutaneous surgery (Mohs surgery or excision) randomized to receive either 0.25% or 0.5% lidocaine for their percutaneous anesthesia. Patients completed a postoperative survey assessing pain level, satisfaction, and willingness to undergo future dermatologic surgery.

This study revealed no statistically significant differences between the 0.25% and 0.5% lidocaine groups regarding pain scores, patient satisfaction, total lidocaine volume, rescue lidocaine volume, or willingness to undergo the procedure again.

0.25% lidocaine is a safe and effective option for achieving anesthesia during Mohs surgery and standard excisions. The results suggest that 0.25% lidocaine can be used to optimize high-value care and enhance patient safety in dermatologic surgery.

Development and Validation of the Oxford Skin Cancer Treatment Scale, a Patient-Reported Outcome Measure for Health-Related Quality of Life and Treatment Satisfaction After Skin Cancer Treatment.

Dermatol Surg

Patient-reported outcome measures (PROMs) are necessary to assess the value of skin cancer treatment and to better compare therapeutic options.

To develop and validate the Oxford Skin Cancer Treatment (OxSCanTr) scale, evaluating health-related quality of life and satisfaction after skin cancer treatment.

After qualitative patient interviews, international expert consultation, and item reduction, 2 separate patient samples were used to assess the factor structure of the scale. Exploratory factor analysis with categorical variables and a polychoric correlation matrix followed by promax oblique rotation was performed to establish a factor structure on Group A. Confirmatory factor analysis with a Satorra-Bentler scaled test statistic evaluating the root mean squared error of approximation (RMSEA), standardized root mean squared residual (SRMR), and comparative fit index (CFI) was conducted on Group B. Reliability as internal consistency was assessed using McDonald omega. Convergent and discriminant validity were assessed using the Pearson correlation coefficient.

A total of 480 subjects returned completed surveys (completion rate 96%). A 12-item scale was developed encompassing 4 domains: aesthetic satisfaction, treatment choice satisfaction, treatment experience, and future concerns regarding recurrence/spread. Confirmatory factor analysis showed excellent goodness-of-fit characteristics, with RMSEA = 0.048, SRMR = 0.051, and CFI = 0.962 using the 4-factor model. Reliability was very good (McDonald omega 0.81-0.82), as was convergent validity with the FACE-Q skin cancer module appraisal of scars subscale (r = 0.55). Discriminant validity with a single question regarding being conservative was similarly excellent (r = -0.02).

The OxSCanTr scale is a parsimonious, feasible, and valid PROM for the holistic assessment of the experience of patients who have undergone skin cancer treatment.

Cross-linked Sodium Hyaluronate Gel with PLLA-b-PEG Microsphere for Facial Contouring in Chinese: A Retrospective Study.

Aesthetic Plastic Surgery

In Asia, the demand for cosmetic facial treatments has surged due to technological advancements, increased social acceptability, and affordability. Poly-L-lactic acid (PLLA) fillers, known for their biocompatibility and biodegradability, have emerged as a popular choice for facial contouring, yet studies specifically addressing their use in Asian populations are scarce.

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 .

No significant difference in GAIS scores was observed between injectors and blinded evaluators over a 12-month period, indicating consistent effectiveness. Patient satisfaction remained high, with GICS scores reflecting positive outcomes. The safety profile was favorable, with no serious adverse events reported. The study highlighted the importance of anatomical knowledge to avoid complications, particularly in areas prone to blindness.

PLLA fillers offer a safe, effective option for facial contour correction in the Asian population, achieving high patient satisfaction and maintaining results over time. The study underscores the need for tailored approaches in cosmetic procedures for Asians, considering their unique facial structures and aesthetic goals. Further research with larger, multicenter cohorts is recommended to validate these findings and explore long-term effects.

Dorsal modification: Practical applications in rhinoplasty.

Aesthetic Surgery Journal

Management of the dorsum continues to present challenges for rhinoplasty surgeons, especially regarding the inherent asymmetry of the bony and cartilaginous vaults and the need for a highly individualized approach for each case. This study presents the author's current operative technique for dorsal modification that can be effectively used as independent approach to improve the shape of the dorsum and its symmetry in cases where there is no need to significantly change dorsal dimensions (height and width).

The aim of this study was to assess the efficiency of dorsal modification for treatment of the dorsum. Authors described a technique that involves only superficial work with the dorsum, without resecting/reconstructing its main parts that support and ensure dorsal stability.

One hundred forty-seven patients who underwent dorsal modification technique between October 2020 and March 2024 were retrospectively reviewed. A step-by-step algorithm was applied to achieve the required dorsal improvement.

The average postoperative follow-up period was 27 months (range, 12-41 months). No patients required revision surgery of their dorsum. No complications were reported. A retrospective analysis on 147 patients demonstrated aesthetic and functional improvement.

Dorsal modification as a separate philosophy is a very conservative, fast and reliable approach. In cases where there is no need to significantly change dorsal dimensions (height and width), dorsal modification improves the dorsum as quickly and efficiently as possible without significant structural resection and no reconstruction, while maintaining stability and maximum predictability.