Publications by authors named "Billur Sezgin"

Background: The coronavirus disease 2019 (COVID-19) pandemic required an unprecedented transformation of medical education, shifting from traditional, in-person learning to distanced, online learning. This study aimed to review changes to medical education and describe the advantages and disadvantages of virtual medical education experienced by medical students during the pandemic.

Methods: An online survey study was conducted at two medical schools, University of Michigan Medical School in the United States and Koc University School of Medicine in Turkey.

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Tailored Indications for Different Neurotoxins.

Plast Reconstr Surg Glob Open

November 2023

Background: Minimally invasive procedures have become increasingly popular because they require minimal downtime and are effective for achieving a more youthful appearance. All U.S.

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An intriguing observation that has recently found support through clinical and experimental studies is that wounds of the oral mucosa tend to display faster healing and result in less scarring than in the skin. We aimed to investigate the potential of heterotopic oral mucosal fibroblasts in cutaneous wounds while determining the main differences between wounds conditioned with either the oral mucosa or dermis-derived human fibroblasts. A total of 48 nude mice were divided into four groups: control, sham, dermal fibroblast (DF), and oral fibroblast (OF).

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Kaposi sarcoma and cutaneous angiosarcoma are rare forms of skin malignancies that are vascular in nature and are frequently encountered in the immunosuppressed population. Although synchronous angiosarcoma and Kaposi sarcoma have been documented, to our knowledge, the coexistence of these vascular malignancies with underlying chronic lymphocytic leukemia has not been previously reported. A 51-year-old male patient with chronic lymphocytic leukemia presented with Kaposi sarcoma located on his left ankle.

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Although the cancellation of elective procedures due to the COVID-19 outbreak has been a vital precaution, it has resulted in the suspension of aesthetic procedures and surgeries worldwide. Consequently, this postponement and other factors might have a negative impact on patients planning to undergo aesthetic procedures. Understanding the changes in patient motivation and perception in comparison to the prepandemic period is imperative for proper adjustment of plastic surgery clinics.

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Background: Free fascial flaps are widely used for the reconstruction of defects located on the distal extremities as they provide thin yet durable soft tissue coverage. The serratus anterior fascia flap stands out from other fascial flap alternatives as it has optimal anatomical properties that can provide ideal coverage in a wide range of reconstructive challenges. The purpose of this study was to present our experience with the serratus anterior fascia flap in a variety of complex soft tissue defects.

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Earlobe elongation is one of the signs of aging process and surgical correction is warranted for earlobe ptosis. Most of the earlobe reduction techniques result with scars on the anterior or inferior aspect of the earlobe or unnatural appearance. The authors present a modified technique for earlobe reduction and reshaping that results with an acceptable scar set on the natural groove of the anterior surface of the earlobe.

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It has been established that many chemotherapeutic agents are associated with a variety of ocular side effects. As an antineoplastic agent, 5-fluorouracil (5-FU) is the chemotherapeutic agent that is frequently linked with cicatricial ectropion. Capecitabine is a prodrug of 5-FU and has a more favorable side effect profile than 5-FU.

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Background: Although columellar strut grafts (CSGs) are considered among the fundamental steps for providing nasal tip support, a downward rotation of the nasal tip in patients with strut grafts can still be encountered. Patient-related factors such as nasal skin thickness can allow the plastic surgeon to anticipate certain drawbacks that can be encountered in the healing phase, but patient-based differences of nasal cartilage and the resulting impact have yet to be investigated. The purpose of this study was to evaluate the effect of the biomechanical properties of CSGs on late postoperative nasal tip position and support.

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Background: Although the excision of the buccal fat pad has become very popular for achieving a slimmer midface, not all patients are good candidates for this procedure. Unfortunately, studies that provide guidelines by emphasizing volumetric and technical details are limited.

Objectives: The study compared preoperative and postoperative volumetric data to identify the amount of tissue that can safely be removed and important technical concepts involved in lower cheek contouring with buccal fat pad excision.

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Background/aim: Even though new techniques are emerging to overcome the inconsistent long-term viability of fat grafts, current methods for increasing fat graft survival are not routinely adaptable to all clinical environments. The purpose of this study was to determine the efficacy of microneedling as an adjunct to fat grafting to the face. Materials and methods: Twenty-two patients that underwent fat grafting to the face with adjunctive microneedling were evaluated in terms of improvement in facial skin quality and facial volume and their results were compared to those in 18 patients that underwent fat grafting without microneedling.

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Background: Lip augmentation procedures have increased drastically in the last years as patients seek to enhance the shape and size of their lips with dermal fillers. One of the main concerns faced with these procedures is the pain inflicted through injections. On the other hand, many different techniques have been introduced for the reduction of pain while performing office-based minimal invasive procedures.

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Treatment of hand deformities in epidermolysis bullosa patients represents a challenging field in hand surgery practice, thus a systematic approach by a team is mandatory for a successful result. A simple and practical algorithm for the surgical treatment of hand deformities in EB was employed by the authors where the deformities of each digit in EB patients was categorized according to pseudosyndactyly and interphalangeal joint contracture severity for guidance during the surgical treatment. The current study retrospectively reviewed the medical records and photographic data of 13 EB patients followed in our department, for whom a systematic approach to the management and treatment was used.

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Uncertainty in the management of animal-inflicted injuries, especially in rural settings, usually results in a general approach to leave all wounds to heal with secondary intention, which can lead to unsightly scarring and functional loss. This study focusus on different circumstances dealt with by plastic surgeons in a rural setting in Turkey and aims to configure what the general approach should be through an analysis of a wide spectrum of patients. Between June 2013 and December 2014, 205 patients who presented to the emergency department for animal-inflicted injuries were retrospectively analysed.

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Background: The orbital floor is one of the most frequently injured areas of the maxillofacial skeleton during facial trauma. A retrospective analysis of patients who have undergone treatment of orbital floor fractures with heterologous cortical bone is presented.

Methods: This retrospective study was carried out with 21 patients over a period of 4 years between 2010 and 2014.

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Elastofibroma is a benign and slow-growing soft tissue tumor that classically presents as an ill-defined solitary mass at the inferior pole of the scapula in the fifth and sixth decades of life for women. This tumor can be rarely seen in childhood, but it has not been reported in the infantile age group to date. To our knowledge, this case represents the first report of elastofibroma in the infantile age group.

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Introduction: Although cartilage grafts are frequently used for structural integrity and volume restoration, one of the main concerns dealing with cartilage grafting is gradual volume loss and unpredictable viability rates of cartilage grafts. Platelet-rich plasma (PRP) is a well known platelet concentrate reported to enhance cartilage repair and stimulates chondrocyte proliferation and matrix biosynthesis. The purpose of the current study was to investigate the effect of subcutaneous PRP injection on improving the viability of cartilage grafts.

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Fibrokeratoma is a benign fibrous tumor which usually arises in fingers and toes. Tumor size is usually small, around 3-5 mm. We report a giant acquired periungual fibrokeratoma of the thumb in this study.

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Although aesthetic procedures are known to have a higher impact on women, men are becoming more inclined toward such procedures since the last decade. To determine the reason behind the increase in demand for male aesthetic procedures and to learn about the expectations and inquietude related to body contouring surgery, a prospective questionnaire study was conducted on 200 Turkish males from January 1, 2011-May 31, 2012. Demographic information, previous aesthetic procedures and thoughts on body contouring procedures with given reasons were questioned.

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Background: Combination treatments of botulinum toxin type-A and other rejuvenation agents or instruments are gradually becoming more popular. After observing a high incidence of therapy failure following simultaneous applications of botulinum toxin type-A and platelet-rich plasma mesotherapy, we aimed to investigate whether PRP has an inhibitory effect on botulinum toxin type-A.

Methods: Twenty-four New Zealand white rabbits were divided into 4 groups, and the anterior auricular muscle and overlying skin were used for injections.

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