An Analysis of the Demographics and Clinical Characteristics of Transgender and Intersex Populations in Korea: A Retrospective Study Using HIRA Database.

Background: Transgender and intersex populations have long remained under-documented in South Korea, largely due to the absence of comprehensive epidemiological data. With increasing societal acknowledgment, there's an urgent need to understand the demographics and health challenges faced by these communities.

Methods: This retrospective, large-scale data study included people who received the F64 codes from the Korean Health Insurance Review & Assessment Service between January 2007 and December 2021.

Effect of the biologically effective dose of electron beam radiation therapy on recurrence rate after keloid excision: A meta-analysis.

Background And Purpose: Adjuvant electron beam radiation therapy after keloid excision has been proven as highly effective in reducing local recurrence. We performed a meta-analysis of studies on hypofractionated electron beam radiation therapy after keloid excision based on accurate radiation dose information to provide a more precise estimate of the effect of the biologically effective dose (BED) on recurrence rate.

Materials And Methods: A literature search was performed in PubMed, Embase, and the Cochrane Library for the period from 1990 to December 2021.

The Efficacy of CT-Based Conformal Electron Beam Radiation Therapy After Keloid Excision.

Background: Adjuvant computed tomography-based conformal electron beam radiation therapy (RT) for patients with keloids enables radiation oncologists to customize the target volume with precision and deliver the maximal prescription dose while sparing normal surrounding tissues.

Objective: To report treatment and cosmetic outcomes by the patient's self-assessment survey.

Methods: Medical records of patients with keloids, who were treated with postoperative electron beam RT between January 2015 and December 2020, were reviewed.

Osteogenic Capacity of the Prefabricated Periosteofascial Flap using Vascular Induction with Skeletonized Pedicle Transfer in Rabbit Calvarium.

The study investigated the osteogenic capacity of a prefabricated periosteal flap created using only skeletonized pedicle transfer without fascia or muscle for vascular induction in rabbit calvarium. A critical-sized bone defect was made in the parietal bone centered on the sagittal suture, and the demineralized bone matrix was implanted. The periosteofascia over the defect was used as a form of prefabricated periosteofascial flap (PPF group, N=10), conventional periosteofascial flap (CPF group, N=10), and nonvascularized free periosteofascial graft (FPG group, N=6).

Establishment and characterization of two human cutaneous angiosarcoma cell lines, KU-CAS3 and KU-CAS5.

Background: Cutaneous angiosarcoma (CAS) is a rare but fatal cancer. Established CAS cell lines are necessary for the investigation of their properties and treatment options.

Methods: Two cell lines, KU-CAS3 and KU-CAS5, were established from human angiosarcoma specimens obtained from the scalp.

Effects of Granulocyte Macrophage Colony-Stimulating Factor Inhibition on the Skin/Nerve Cell Model In Vitro.

The present study is based on the concept of neuro-aging and how it may affect surrounding skin cells. It has been shown that many factors play a significant role in skin homeostasis by interfering with various cytokines, either through activation or inhibition. Granulocyte macrophage colony-stimulating factor (GM-CSF) is generally recognized as an inflammatory cytokine, and our previous study has shown its effects on neuronal senescence after ultraviolet (UV) irradiation of skin cells.

Intraoral temporalis transposition for facial reanimation: A novel technique in facial nerve palsy.

Background: Facial palsy patients require reconstructive surgery because they suffer from an expressionless and deformed appearance especially during smiling. To gain a natural smile, various dynamic procedures rather than static procedures are performed. Through cadaveric studies with clinical implications on temporalis muscle and intraoral transposition, we were able to come up with a more effective and less invasive procedure than the conventional temporalis muscle transposition or lengthening temporalis myoplasty.

The Outcome of Early Ablative Fractional Laser Treatment for Thyroidectomy Scars.

Background And Objectives: Ablative fractional laser (AFL) systems are commonly used to treat various scars, and recent research has indicated that early treatment with AFL may have a preventive effect on scars. This study was designed to evaluate the efficacy of early treatment with a 10,600 nm carbon dioxide (CO ) AFL on thyroidectomy scars and compare it to late (conventional) treatment for the same and untreated controls.

Study Design/materials And Methods: We performed a prospective, evaluator-blinded, split-scar study on fresh thyroidectomy scars between July 2014 and July 2017.

De-epithelialized dermal flap for nipple reconstruction: A modified star flap.

Background: Multiple approaches for nipple reconstruction exist, and none is considered superior to all others. The star flap is one of the most popular methods for nipple reconstruction, but gradual height loss is a major concern. We present a new modification of the star flap that incorporates a de-epithelialized dermal flap, along with the associated surgical results.

Bacterial profile of suction drains and the relationship thereof to surgical-site infections in prosthetic breast reconstruction.

Background: Despite the increasing popularity of prosthetic breast reconstruction, scant data exist on the microbiological profile of drainage fluid from closed-suction drains and the relationship thereof to surgical-site infections (SSIs) in breast reconstruction surgery. This study aimed to determine whether bacteria isolated from drainage fluid were associated with the development of SSIs, and whether the bacterial profile of drainage fluid could be a clinically useful predictor of SSIs.

Methods: We performed a retrospective chart review of 61 women who underwent tissue expander/implant or direct-to-implant reconstructions.

Septal Extension Graft in Asian Rhinoplasty.

A septal extension graft (SEG) can control nasal tip projection, shape, and rotation. SEG and dorsal alloplastic implants have predominated in Asian rhinoplasty, leading to iatrogenic complications such as a foreshortened nose and destruction of remaining septum. The lower nasal two-thirds can be enhanced anteriorly and caudally using the septal L-strut extension graft in Asians with relatively small noses.

Transconjuctival Incision with Lateral Paracanthal Extension for Corrective Osteotomy of Malunioned Zygoma.

Background: Conventional correction of malunioned zygoma requires complete regional exposure through a bicoronal flap combined with a lower eyelid incision and an upper buccal sulcus incision. However, there are many potential complications following bicoronal incisions, such as infection, hematoma, alopecia, scarring and nerve injury. We have adopted a zygomaticofrontal suture osteotomy technique using transconjunctival incision with lateral paracanthal extension.

Endoscope-Assisted Transoral Fixation of Mandibular Condyle Fractures: Submandibular Versus Transoral Endoscopic Approach.

In recent years, endoscope-assisted transoral approach for condylar fracture treatment has attracted much attention. However, the surgical approach is technically challenging: the procedure requires specialized instruments and the surgeons experience a steep learning curve. During the transoral endoscopic (TE) approach several instruments are positioned through a narrow oral incision making endoscope maneuvering very difficult.

Protective effects of adipose-derived stem cells against UVB-induced skin pigmentation.

Background: Hyperpigmentation, mainly following UV-irradiation, can cause major cosmetic concerns. Human adipose tissue-derived stem cells (ASCs) have been reported to serve as whitening agents through a paracrine effect. However, there have been few reports on the direct effects of ASCs on skin pigmentation following UVB-irradiation.

Closure of Myelomeningocele Defects Using a Limberg Flap or Direct Repair.

Background: The global prevalence of myelomeningocele has been reported to be 0.8-1 per 1,000 live births. Early closure of the defect is considered to be the standard of care.

Empirical treatment of highly suspected nontuberculous mycobacteria infections following aesthetic procedures.

Background: Infection caused by nontuberculous mycobacteria (NTM) has been increasing. Awareness of this infection is crucial yet problematic. Delayed management may lead to destructive results.

Adipose-derived stem cells inhibit epidermal melanocytes through an interleukin-6-mediated mechanism.

Background: Several investigators have postulated that human adipose-derived stem cells can be used for skin rejuvenation, but there have been few reports about their direct effects on human epidermal melanocytes. The authors studied the effects on melanocytes, and the causative agent of those effects was further investigated in this study.

Methods: Human epidermal melanocytes were divided into three groups and cultured in adipose-derived stem cell-conditioned medium, human dermal fibroblast-conditioned medium, or control medium.

Outcomes of ablative fractional laser scar treatment.

Ablative fractional laser (AFL) systems are commonly used to treat various scars, and recent reports have indicated that early scar treatment with fractional lasers has good aesthetic results. Some scars respond dramatically to AFL treatment, incurring high levels of patient satisfaction; however, other scars respond poorly or became worse after treatment. This study was designed to clarify prognostic factors that predict AFL scar treatment outcomes.

Is topical vitamin C an effective post-Fraxel laser regimen for asians?

Unlabelled: The Fraxel laser has been a useful method for skin resurfacing. According to recent reports, vitamin C has beneficial effects for the skin. However, there is a paucity of data about the effect of vitamin C associated with the Fraxel laser.

Morphologic changes in photodamaged organotypic human skin culture after treatment of autologous adipose-derived stromal cells.

Background: Recent clinical trials indicate that human adipose-derived stromal cells (hASCs) have beneficial effects on antiaging and wound healing. This study examined the morphologic changes in photodamaged human organotypic skin culture after treatment of autologous hASCs.

Methods: Abdominal skin flaps were obtained from 8 white females who underwent abdominoplasties with liposuction.