27 results on '"Ozçelik D"'
Search Results
2. Anophthalmia, cleft lip/palate, absent vomer bone, nystagmus, and mental-motor retardation: a new syndrome or Fryns 'anophthalmia-plus' syndrome?
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Ozçelik D, Saglam I, SIlan F, Sezen G, and Unveren T
- Abstract
OBJECTIVE: We report that a 4-year-old boy presented with right unilateral complete cleft lip and palate, right anophthalmos, left congenital nystagmus, absence of the vomer bone, mental-motor retardation, and normal lymphocyte karyotype (46, XY). METHODS: For reconstruction of the deformities, we performed cleft lip repair by Millard's rotation-advancement technique and planned cleft palate repair. CONCLUSIONS: This combination of cleft lip and palate, anophthalmos, congenital nystagmus, absent vomer bone, and mental-motor retardation has not, to our knowledge, previously been described. We suggest that this represents either another case of the rare Fryns 'anophthalmia-plus' syndrome or a new syndrome. [ABSTRACT FROM AUTHOR]
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- 2008
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3. Optofluidic bioanalysis: fundamentals and applications
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Ozcelik Damla, Cai Hong, Leake Kaelyn D., Hawkins Aaron R., and Schmidt Holger
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biosensing ,integrated optics ,lab-on-chip ,optofluidics ,photonics ,Physics ,QC1-999 - Abstract
Over the past decade, optofluidics has established itself as a new and dynamic research field for exciting developments at the interface of photonics, microfluidics, and the life sciences. The strong desire for developing miniaturized bioanalytic devices and instruments, in particular, has led to novel and powerful approaches to integrating optical elements and biological fluids on the same chip-scale system. Here, we review the state-of-the-art in optofluidic research with emphasis on applications in bioanalysis and a focus on waveguide-based approaches that represent the most advanced level of integration between optics and fluidics. We discuss recent work in photonically reconfigurable devices and various application areas. We show how optofluidic approaches have been pushing the performance limits in bioanalysis, e.g. in terms of sensitivity and portability, satisfying many of the key requirements for point-of-care devices. This illustrates how the requirements for bianalysis instruments are increasingly being met by the symbiotic integration of novel photonic capabilities in a miniaturized system.
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- 2017
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4. 604 Parenteral iron enhences liver injury in methionine choline deficient diet induced non-alcoholic steatohepatitis in rats
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Tahan, V., Sonsuz, A., Imeryuz, N., Uraz, S., Akpulat, S., Yuksel, M., Ozcelik, D., Avsar, E., Ataizi Celikel, C., Haklar, G., and Tozun, N.
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- 2004
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5. Multiparameter flow cytometric analysis of CD4 and CD8 T cell subsets in young and old people
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Özcelik Dennis, Derhovanessian Evelyna, Larbi Anis, Koch Sven, Naumova Elissaveta, and Pawelec Graham
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Immunologic diseases. Allergy ,RC581-607 ,Geriatrics ,RC952-954.6 - Abstract
Abstract Background T cell-mediated immunity in elderly people is compromised in ways reflected in the composition of the peripheral T cell pool. The advent of polychromatic flow cytometry has made analysis of cell subsets feasible in unprecedented detail. Results Here we document shifts in subset distribution within naïve (N), central memory (CM) and effector memory (EM) cells defined by CD45RA and CCR7 expression in the elderly, additionally using the costimulatory receptors CD27 and CD28, as well as the coinhibitory receptors CD57 and KLRG-1, to further dissect these. Although differences between young and old were more marked in CD8 than in CD4 cells, a similar overall pattern prevailed in both. Thus, the use of all these markers together, and inclusion of assays of proliferation and cytokine secretion, may enable the construction of a differentiation scheme applicable to CD4 as well as CD8 cells, with the model (based on Romero et al.) suggesting the progression N→CM→EM1→EM2→pE1→pE2→EM4→EM3→E end-stage non-proliferative effector cells. Conclusion Overall, the results suggest that both differences in subset distribution and differences between subsets are responsible for age-related changes in CD8 cells but that differences within rather than between subsets are more prominent for CD4 cells.
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- 2008
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6. Lateral facial cleft associated with accessory mandible having teeth, absent parotid gland and peripheral facial weakness.
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Ozçelik D, Toplu G, Türkseven A, Senses DA, and Yiğit B
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- Alveolar Process abnormalities, Ear, External abnormalities, Face surgery, Facial Asymmetry etiology, Female, Follow-Up Studies, Humans, Infant, Mandible surgery, Mouth Abnormalities pathology, Mouth Abnormalities surgery, Face abnormalities, Facial Paralysis congenital, Mandible abnormalities, Parotid Gland abnormalities, Tooth Abnormalities pathology
- Abstract
Transverse facial cleft is a very rare malformation. The Tessier no. 7 cleft is a lateral facial cleft which emanates from oral cavity and extends towards the tragus, involving both soft tissue and skeletal components. Here, we present a case having transverse facial cleft, accessory mandible having teeth, absent parotid gland and ipsilateral peripheral facial nerve weakness. After surgical repair of the cleft in 2-month of age, improvement of the facial nerve function was detected in 3-year of age. Resection of the accessory mandible was planned in 5-6 years of age., (Copyright © 2013 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.)
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- 2014
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7. [Occipital condyle fractures: a case report].
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Dinç C, Türkoğlu ME, Tuncer C, Aykanat O, Ozçelik D, and Ozkan G
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- Female, Humans, Radiography, Occipital Bone diagnostic imaging, Occipital Bone injuries, Skull Fractures diagnostic imaging
- Abstract
Occipital condyle fractures are rare, and conservative treatment is sufficient for many cases. Surgical treatment may be required if the condyle fracture is accompanied by atlantooccipital dislocation. Unfortunately, condyle fracture generally cannot be diagnosed with X-ray in the emergency department. Recently, computed tomography scans have been used more frequently, and enable easier diagnosis of these types of fractures. In this report, we describe a patient who admitted to our emergency department after a major trauma. She complained of neck pain, and maxillofacial trauma was more evident. Her cervical X-rays were normal, but cervical computed tomography revealed unilateral occipital condyle fracture.
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- 2014
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8. Long-term objective results of proximal phalanx fracture treatment.
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Ozçelik D, Toplu G, Unveren T, Kaçağan F, and Senyuva CG
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- Adolescent, Adult, Aged, Bone Wires, Child, Child, Preschool, Female, Finger Injuries diagnostic imaging, Finger Injuries surgery, Fractures, Bone diagnostic imaging, Fractures, Bone surgery, Humans, Male, Middle Aged, Radiography, Range of Motion, Articular, Treatment Outcome, Turkey epidemiology, Finger Injuries epidemiology, Finger Phalanges injuries, Fracture Fixation statistics & numerical data, Fractures, Bone epidemiology
- Abstract
Background: Proximal phalanx fractures are common. In this study, our preferred methods regarding the treatment of proximal phalanx fractures and their long-term objective results are presented., Methods: Between October 2001 and March 2010, in the Plastic Reconstructive and Aesthetic Surgery Department of Düzce Medical Faculty, we treated 23 patients with 32 proximal phalanx fractures. Stable fractures (n=5) were treated with splints, while unstable fractures (n=27) were stabilized with 1.0 mm percutaneous intramedullary Kirschner wires following open reduction., Results: At follow-ups, ranging from 3 months to 9 years, patients were evaluated with radiologic efficiency, range of motion (ROM), total active movements (TAM), and grip power of the digit. TAM scores of 20 fingers were perfect (≥220° for D2-5, ≥150° for D1), for 7 fingers were good (180- 220° for D2-5, 120-150° for D1), and for 5 fingers were either moderate or poor. No difference was observed between grip strength of broken fingers and that of healthy fingers. As a major complication, non-union occurred in one finger., Conclusion: We concluded that Kirschner wire fixation is a reliable and simple method of treating unstable proximal phalangeal fractures, and excellent long-term results can be obtained in suitable cases. In stable proximal phalanx fractures, splints provide sufficient treatment.
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- 2011
9. HPV-related scrotal verrucous carcinoma and anal condyloma acuminatum.
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Ozçelik D, Unveren T, Comunoğlu NU, Yildirim U, Gürol Y, and Senyuva C
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- Anus Diseases pathology, Anus Diseases surgery, Carcinoma, Verrucous pathology, Carcinoma, Verrucous surgery, Condylomata Acuminata pathology, Condylomata Acuminata surgery, Genital Neoplasms, Male pathology, Genital Neoplasms, Male surgery, Human papillomavirus 11 isolation & purification, Humans, Male, Middle Aged, Papillomavirus Infections pathology, Papillomavirus Infections surgery, Treatment Outcome, Anus Diseases virology, Carcinoma, Verrucous virology, Condylomata Acuminata virology, Genital Neoplasms, Male virology, Human papillomavirus 6 isolation & purification, Papillomavirus Infections complications, Scrotum virology
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- 2009
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10. Subtotal ear amputation with a very narrow pedicle: a case report and review of the literature.
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Ozçelik D, Unveren T, and Toplu G
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- Accidents, Traffic, Adult, Humans, Male, Treatment Outcome, Amputation, Traumatic surgery, Ear, External injuries, Ear, External surgery, Plastic Surgery Procedures methods
- Abstract
Total ear amputation is common, and management can necessitate different procedures, especially microsurgical anastomosis. Partial ear amputations supplied by narrow pedicles, however, have been reported rarely. In a subtotally amputated auricle, the chance of survival depends on the vascularization within the pedicle. In our case, the right ear of a 36-year-old male patient was subtotally amputated following a traffic accident, leaving only a 6-mm skin pedicle on the cranial side. The subtotally amputated segment was bleeding from the wound margins. The ear was reattached with primary suture without using microsurgical techniques after optimal debridement. Postoperatively, we administrated dextran 40 for 5 days to improve the microcirculation and increase blood volume and antibiotic to control the infection. No signs of edema, venous congestion or arterial insufficiency were observed immediately after the operation or subsequently. The replanted auricle healed completely with 100% survival, resulting in an essentially normal contour and appearance. This successful result without microvascular anastomoses also points out the anatomical features of the auricular vascular networks.
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- 2009
11. Vertical mammaplasty for gigantomastia.
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Ozçelik D, Unveren T, Toplu G, Bilgen F, Iskender A, and Senyuva C
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- Female, Humans, Hypertrophy, Middle Aged, Breast pathology, Breast Diseases surgery, Mammaplasty methods
- Abstract
A 48-year-old female patient presented with gigantomastia. The sternal notch-nipple distance was 55 cm for the right breast and 50 cm for the left. Vertical mammaplasty based on the superior pedicle was performed. The resected tissue weighed 3400 g for the right breast and 2800 g for the left breast. The outcome was excellent with respect to symmetry, shape, size, residual scars, and sensitivity of the nipple-areola complex. Longer pedicles or larger resections were not found in the literature on vertical mammaplasty applications. In our opinion, by using the vertical mammaplasty technique in gigantomastia it is possible to achieve a well-projecting shape and preserve NAC sensitivity.
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- 2009
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12. Extensive traction alopecia attributable to ponytail hairstyle and its treatment with hair transplantation.
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Ozçelik D
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- Adult, Female, Hair Follicle pathology, Humans, Plastic Surgery Procedures methods, Time Factors, Treatment Outcome, Alopecia etiology, Alopecia surgery, Hair transplantation, Hair Follicle injuries
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- 2005
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13. Soft tissue closure and plastic surgical aspects of large dorsal myelomeningocele defects (review of techniques).
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Ozçelik D, Yildiz KH, Iş M, and Döşoğlu M
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- Adult, Aged, Biomarkers, Blood Cell Count, Blood Sedimentation, C-Reactive Protein metabolism, Female, Humans, Immunohistochemistry, Inflammation Mediators physiology, Male, Middle Aged, Prospective Studies, Rheumatoid Factor blood, E-Selectin metabolism, Inflammation metabolism, Inflammation pathology, Intervertebral Disc Displacement metabolism, Intervertebral Disc Displacement pathology, Lumbar Vertebrae metabolism, Lumbar Vertebrae pathology
- Abstract
The large myelomeningocele defects that cannot be closed reliably by simple skin undermining require a close cooperation between the neurosurgeon and the plastic surgeon. In this study, a 3-year review was undertaken of nine consecutive patients with a myelomeningocele defect treated in our hospital. The aim of the study was to analyze the size, location of myelomeningocele defects, features of the surrounding tissue, and type and results of the reconstruction method for skin closure. Of the nine patients, five were repaired within the first 48 h of life, two within the 1st month of life, and two were repaired within the 1st year of life. Of the nine patients, seven (78%) underwent repair with direct skin approximation by the Neurosurgical Service. For three patients (33%) with large lumbosacral meningomyelocele defects, including one patient who had failed direct skin approximation, the Plastic Surgery Service achieved the skin closure by bilateral paralumbar fasciocutaneous rotational flaps. Minimal area in the patients referred to the Plastic Surgery Service was 24 cm2 (range 24-48 cm2); patients having 18 cm2 or less skin defect were not referred for closure. In conclusion, fasciocutaneous rotational flaps provided tension-free, durable, innervated and well-vascularized skin coverage over the dural repair in all three referred patients, without using skin graft. Since myelomeningocele defects vary in size, shape, and location, no single procedure applies to all. Therefore, other reconstruction methods involving skin grafts, fasciocutaneous flaps, and musculocutaneous flaps are reviewed in this report.
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- 2005
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14. Unilateral linear verrucous epidermal nevus of the face and the oral mucosa.
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Ozçelik D, Parlak AH, Oztürk A, Kavak A, and Celikel N
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- Adolescent, Diagnosis, Differential, Facial Dermatoses surgery, Female, Hamartoma surgery, Humans, Mouth Diseases surgery, Mouth Mucosa diagnostic imaging, Mouth Mucosa pathology, Mouth Mucosa surgery, Nevus, Pigmented diagnosis, Nevus, Pigmented surgery, Radiography, Ultrasonography, Warts diagnosis, Warts surgery, Facial Dermatoses diagnosis, Hamartoma diagnosis, Mouth Diseases diagnosis
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- 2005
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15. Repair of proboscis lateralis.
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Uğurlu K, Karşidag S, Ozçelik D, Sadikoğlu B, and Baş L
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- Abnormalities, Multiple, Child, Cleft Lip surgery, Cleft Palate surgery, Female, Humans, Hypertelorism surgery, Nose abnormalities, Nose surgery, Rhinoplasty methods
- Abstract
We report an 8-year-old girl presented with a proboscis on the right nasal nostril, right heminasal hypoplasia, hypertelorism, and cleft lip and palate on the other side. After repair of the cleft lip and palate and the hypertelorism, we successfully reconstructed the heminose with a V-Y advancement flap containing the proboscis tube.
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- 2005
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16. Comparison of accuracy of three-dimensional spiral computed tomography, standard radiography, and direct measurements in evaluating facial fracture healing in a rat model.
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Ozçelik D, Hüthüt I, Kuran I, Bankaoğlu M, Orhan Z, and Mayda AS
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- Animals, Bone Regeneration, Male, Rats, Rats, Wistar, Skull Fractures physiopathology, Time Factors, Zygoma diagnostic imaging, Zygoma physiopathology, Fracture Healing physiology, Imaging, Three-Dimensional, Skull Fractures diagnostic imaging, Tomography, Spiral Computed, Zygoma injuries
- Abstract
Complex maxillofacial fractures demand a detailed understanding of the three-dimensional (3D) pattern of injury. Evaluation of the outcome of the facial fracture repair additionally requires optimal demonstration of fracture gap, bony union, fibrous callus or incorporation of fracture ends, presence of incomplete fusion, or pseudoarthrosis. Although 3D computed tomography (CT) is reliably used for the diagnosis of complex facial fractures, its value in facial fracture healing is unknown. An experimental study was conducted to determine the accuracy of 3D spiral CT scans in evaluating facial fracture healing during the early and late postoperative periods. In 10 adult Wistar Albino rats, a standardized bone defect (3 mm) was created within the mid portion of each zygomatic arch (n = 20). At 10 and 20 weeks postfracture, gap distance displayed by 3D CT and plane radiography (posteroanterior) were measured. At 20 weeks postfracture, intraoperative measurement was also performed. A comparison between 3D CT, radiography, and intraoperative findings was performed. At 10 weeks postfracture, the fracture sites displayed larger bone defects in imaging with 3D CT than with plane radiography. The difference between groups was statistically significant (P < 0.05). The mean defect size imaged by 3D CT was 0.91 +/- 0.82 mm (standard deviation) and by plane radiography was 0.42 +/- 0.16 mm. At 20 weeks postfracture, the mean defect size imaged by 3D CT was 0.56 +/- 0.64 mm, and by plane radiography was 0.38 +/- 0.22 mm. The difference between groups was not statistically significant (P > 0.05). The defect size imaged by both plane radiography and 3D CT was significantly less than the measurement obtained from the intraoperative assessment (P < 0.05). It was concluded that 3D CT has limited benefit in the detection of newly formed bone at week 10 and in the detection of fibrous callus, which can eventually give rise to the bony tissue. Plane radiography is more valid during the early postoperative period (week 10), because it can detect the fibrous callus and newly formed bone more precisely. Gap distance between fracture ends could be determined by 3D CT accurately at week 20, although there was a tendency, which was not statistically significant, to overestimate the amount of bone defect measured by 3D CT when compared with that of plane radiography.
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- 2004
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17. Extended vertical trapezius myocutaneous flap in head and neck reconstruction as a salvage procedure.
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Uğurlu K, Ozçelik D, Hüthüt I, Yildiz K, Kilinç L, and Baş L
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- Adolescent, Adult, Aged, Ankylosis mortality, Arteries surgery, Bone Transplantation, Carcinoma, Squamous Cell pathology, Carcinoma, Squamous Cell surgery, Facial Hemiatrophy pathology, Facial Hemiatrophy surgery, Female, Follow-Up Studies, Humans, Male, Mandibular Neoplasms mortality, Mandibular Neoplasms pathology, Microsurgery methods, Middle Aged, Neck Dissection, Neoplasm Recurrence, Local pathology, Neoplasm Recurrence, Local surgery, Neoplasm Staging, Otorhinolaryngologic Neoplasms pathology, Reoperation, Sarcoma, Synovial pathology, Sarcoma, Synovial surgery, Survival Rate, Temporomandibular Joint Disorders mortality, Ankylosis surgery, Cervicoplasty methods, Mandibular Neoplasms surgery, Otorhinolaryngologic Neoplasms surgery, Salvage Therapy, Surgical Flaps, Temporomandibular Joint Disorders surgery
- Abstract
In surgical treatment of head and neck cancer, when local tumor recurrence or failure of the previous reconstruction method occurs, reoperation for reconstruction of complicated soft-tissue defects can become a challenge for the plastic surgeon. This article describes the authors' experience with the extended vertical trapezius myocutaneous flap for head and neck complicated soft-tissue defects in nine patients ranging in age from 17 to 72 years. The causes of the defects were squamous cell carcinoma of the external ear (n = 2), lip (n = 2), larynx (n = 1), and oral cavity floor (n = 1); congenital hemifacial atrophy-temporomandibular joint ankylosis (n = 1); synovial sarcoma at the mandibular ramus (n = 1); and malignant fibrous histiocytoma at the posterior cranial fossa (n = 1). Eight of the nine patients had previously been operated on using other flap procedures, including free flaps and/or distant pedicled flaps (pectoralis major and deltopectoral flaps). One patient had been operated on using a graft procedure. After failure of the previous flap procedures in four patients and tumor recurrence in five patients, the extended vertical trapezius myocutaneous pedicled flap was used as a salvage procedure. The mean flap size was 7 x 34 cm. The flap was based solely on the transverse cervical artery. Superior muscle fibers of the trapezius were preserved and the caudal end of the flap was extended from 10 to 13 cm beyond the caudal end of the trapezius muscle. Three weeks postoperatively, the pedicle was separated. No flap failure occurred. The donor sites were closed primarily. There were no disabilities with regard to shoulder motion. Tumor recurrence was observed in two patients. In conclusion, for complicated soft-tissue defects of the head and neck, the extended vertical trapezius flap can be preferred as a salvage procedure because it is a simple, reliable, large flap that is located far enough from the damaged area.
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- 2004
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18. Epithelialization process of free fascial flaps used in reconstruction of oral cavity mucosa defects in dogs.
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Uğurlu K, Hüthüt I, Ozçelik D, Ozer K, Sakiz D, Yildiz K, and Baş L
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- Animals, Dogs, Epithelium physiology, Mouth Mucosa anatomy & histology, Mouth Mucosa surgery, Surgical Flaps physiology
- Abstract
Bare free fascial flaps are increasingly used for restoration of soft-tissue defects of the oral cavity because they provide thin, foldable tissues with high epithelialization capacity to preserve local anatomy as well as chewing, phonation, and deglutition. However, there are unanswered questions regarding the epithelialization process and other histopathologic changes occurring after transfer of these flaps into the oral cavity. To investigate these changes thoroughly, an experimental study was conducted in the dog model. Bare dorsal thoracic fascia was used as the free flap model. Ten adult dogs were used in this experiment. Oral mucosa defects measuring 6 x 5 cm were created. Free dorsal thoracic fascia flaps were harvested. The vascular pedicle of the fascia flap was anastomosed with the superior thyroidal artery and external jugular vein. Then, the flaps were transferred into the mucosa defects. The dogs were divided into groups, each composed of two animals. At 7, 14, 21, 30, and 60 days postoperatively, general anesthesia was administered to the groups 1, 2, 3, 4, and 5, respectively. First, clinical assessment was performed; then specimens were obtained. Initially, the flaps were gradually infiltrated by acute inflammatory cells coming from the circulation and then replaced by granulation tissue. Epithelial cells deriving from wound margins migrated onto the granulating flaps with eventual coverage of highly organized epithelium after 4 weeks, and the fascia flap could not be differentiated from the native mucosa. The flaps were replaced by normally maturated fibrous tissue containing regular collagen fibers, instead of atypical scar tissue. Wound contraction was calculated as 18 percent at postoperative day 60. It was detected that bare free fascia flaps used in the repair of mucosa defects act as a scaffold and complete epithelialization from surrounding margins. They can be accepted as the main surgical option for the reconstruction of oral cavity mucosa defects.
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- 2004
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19. An easy way to convey the vascular pedicle of the free flap through the tunnel.
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Uğurlu K, Hüthüt I, Baş L, and Ozçelik D
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- Humans, Plastic Surgery Procedures methods, Surgical Flaps blood supply
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- 2004
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20. The use of sentinel lymph node biopsy in squamous cell carcinoma of the foot: a case report.
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Ozçelik D, Tatlidede S, Hacikerim S, Uğurlu K, and Atay M
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- Carcinoma, Squamous Cell surgery, Foot surgery, Foot Diseases surgery, Humans, Lymphatic Metastasis, Male, Middle Aged, Surgical Flaps, Carcinoma, Squamous Cell pathology, Foot pathology, Foot Diseases pathology, Sentinel Lymph Node Biopsy
- Abstract
Squamous cell carcinoma (SCC) is the second most common skin cancer in humans. Because the incidence of metastasis from SCC of the skin is rare, regional lymphadenectomy is generally not recommended for the patients with clinically node-negative disease. However, in patients with an intermediate and high risk of metastasis, evaluation of the lymph nodes to detect the absence of metastatic nodal disease is a difficult task. Here, we present a patient with a large SCC on the dorsum of the foot with clinically negative inguinal and popliteal lymph nodes. Intraoperative lymphatic mapping technique was used to make the decision of the inguinal node dissection. Two sentinel lymph nodes that were biopsy negative were found; therefore, only tumor excision was performed without adding complete inguinal node dissection. The defect was reconstructed with the free flap. After a 4-year carcinoma-free period, we determined that the pathology of the sentinel lymph nodes reflected that of the inguinal region. The use of selective lymphadenectomy technique in extremity SCC is very new. However, it might be useful in staging patients with SCC of the lower extremity by being able to detect absence or presence of occult metastatic nodal disease and avoid unnecessary complete inguinal node dissection.
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- 2004
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21. Experimental fascial flap model in the dog: free flap of the dorsal thoracic fascia.
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Uğurlu K, Ozer K, Hüthüt I, Ozçelik D, Tatlidede S, Egemen O, and Baş L
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- Animals, Dogs, Fascia blood supply, Surgical Flaps blood supply
- Abstract
For years, various types of fascial flaps have been used in clinical practice; however, there are many unanswered questions regarding their basic physiology, anatomy and histopathologic changes occurring after transfer. Simple and reliable flap models are needed to investigate these questions, but very few of these flap models have been described in experimental animals to date. The purpose of this study was to describe a new reliable fascia flap model in the dog-the dorsal thoracic fascia flap. This fascia is defined as the anatomic layer that contains the blood supply to the scapular and parascapular fasciocutaneous flaps. Fourteen adult dogs were used in this experiment. The vascular anatomy of the dorsal thoracic fascia was studied by anatomic dissection and microangiography. Anatomic dissection revealed that the main axial vessel supplying the dorsal thoracic fascia was the superficial branch of the thoracodorsal vessel. Based on the vascular pedicle, fascia flaps generally measuring 15 x 24 cm were created. At gross observation, all of these large flaps based solely on the vascular pedicle were observed to be well-perfused. Microangiographic examination revealed the intense vascularity of the superficial branches of the thoracodorsal vessels in the whole area of all flaps. It was concluded that this is a simple and reliable fascial flap model which can be prepared as a free or pedicled flap. It has a consistent, long vascular pedicle with large vessel diameters supporting a large fascial flap.
- Published
- 2003
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22. Bone induction capacity of the periosteum and neonatal dura in the setting of the rat zygomatic arch fracture model.
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Ozçelik D, Turan T, Kabukcuoğlu F, Uğurlu K, Oztürk O, Başak M, and Bankaoğlu M
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- Animals, Animals, Newborn, Imaging, Three-Dimensional, Models, Animal, Radiography, Rats, Rats, Wistar, Zygomatic Fractures diagnostic imaging, Dura Mater physiology, Fracture Healing physiology, Osteogenesis physiology, Periosteum physiology, Zygomatic Fractures physiopathology, Zygomatic Fractures therapy
- Abstract
Objectives: Osteogenic properties of the dura and periosteum are thought to contribute to the regenerative capacity of membranous bone tissue. The purpose of this investigation was to elucidate (1) whether dura without underlying neural tissues can induce osteogenesis, (2) to what extent the periosteum participates in membranous bone healing, and (3) the difference between dura-induced and periosteum-induced osteogenesis., Methods: A standardized 2-mm defect was created within the middle portion of each zygomatic arch in 30 Wistar albino rats. The rats were divided into 3 groups, 10 animals in each group. In group 1, the periosteum was removed and neonatal dura grafts were transplanted onto the zygomatic arch bone defect circumferentially. In group 2, the overlying periosteum was preserved. In group 3, the periosteum was removed. At 3 and 10 weeks, animals from each group were killed, and specimens were obtained. Data were collected from the 3-dimensional computed tomographic scans and histologic studies to compare the extent of bony repair., Results: Fracture sites demonstrated osteogenesis associated with chondrogenesis in groups 1 and 2 and only limited osteogenesis with no chondrogenesis in group 3. In some animals in group 3, cortical bone ends underwent resorption. In groups 1 and 2, bone defects were obliterated by the formation of the mature compact bone at 10 weeks postoperatively. The difference between bone regeneration in these groups was not significant (P =.16). In group 3, the defects failed to heal by bony union, and in most of the samples the fibrous union was observed instead. The difference between groups 1 and 3 was significant (P =.03). The difference between groups 2 and 3 was not significant (P =.09)., Conclusions: The trend toward significance is in agreement with the current clinical practice of preserving periosteum in the manipulations of the membranous bone defects. Newborn dura can exert a potentiating effect on osteogenesis.
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- 2003
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23. Reconstruction of the replanted hand with latissimus dorsi muscle and serratus anterior fascia combined flap.
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Ozçelik D, Uğurlu K, and Turan T
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- Adult, Amputation, Traumatic surgery, Fascia blood supply, Humans, Male, Muscle, Skeletal blood supply, Recovery of Function physiology, Wound Healing physiology, Fascia transplantation, Hand surgery, Muscle, Skeletal transplantation, Surgical Flaps blood supply
- Abstract
Reconstruction with the latissimus dorsi muscle flap, combined with the serratus anterior fascia flap, was performed to cover two large and separate palmar and dorsal forearm skin defects in a patient, whose hand had been replanted 20 days earlier after traumatic amputation at the distal forearm level. As a result, a total forearm amputation was salvaged by microsurgical replantation and a free combined flap of the subscapular system. This new application of the combined flap allowed the reconstruction of large and separate wounds of the replanted hand, and provided gliding surfaces for tendons.
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- 2003
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24. Effects of excessive copper intake on hematological and hemorheological parameters.
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Ozçelik D, Toplan S, Ozdemir S, and Akyolcu MC
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- Animals, Erythrocyte Count, Hematocrit, Rats, Rats, Wistar, Blood Viscosity drug effects, Copper toxicity, Erythrocyte Deformability drug effects
- Abstract
Copper plays an important role in the structure and function of metalloproteins and in the absorption of iron. The present study deals with the effects of excessive copper intake on hematological and hemorheological parameters. Drinking water containing 250 microg/mL copper for a period of 9 wk, Wistar albino rats showed increased erythrocyte count, blood viscosity, and hematocrit values (p<0.05) and lower hemoglobin (p<0.05) than controls fed a normal diet. The two groups also had differences in the erythrocyte deformability index. The results suggest that excessive copper intake results in hematological and hemorheological changes affecting both the protein content of the erythrocyte membrane and heme synthesis.
- Published
- 2002
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25. Eversion with four sutures: an easy, fast, and reliable technique for microvascular anastomosis.
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Turan T, Ozçelik D, Kuran I, Sadikoğlu B, Baş L, San T, and Sungun A
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- Animals, Femoral Artery pathology, Femoral Artery surgery, Rats, Rats, Wistar, Vascular Patency physiology, Anastomosis, Surgical methods, Microcirculation surgery, Microsurgery methods, Suture Techniques
- Abstract
In this study, a microvascular anastomosing technique called "eversion with four sutures" is introduced. For microvascular anastomosis, this technique requires fishmouth incisions at both vessel ends and the completion of four sutures. In 120 Wistar-Albino rats, 120 eversion and 120 conventional anastomoses were done in 240 femoral arteries. Each rat received both treatments. Operating time, bleeding time, number of sutures used, patency rates, and pseudoaneurysm formation were analyzed statistically; healing was evaluated with both light and electron microscopy. When compared with the conventional technique using nine sutures, the eversion with four sutures technique was found to be a faster and easier method of anastomosis and as reliable as the conventional technique. Without compromising patency rates, bleeding time, or rates of pseudoaneurysm formation, anastomosis time and amount of suture material exposed to the lumen were significantly reduced when using this technique. In conclusion, the authors think that eversion with four sutures is a reliable alternative to the conventional suturing technique, especially for emergency cases that require multiple microvascular anastomoses.
- Published
- 2001
- Full Text
- View/download PDF
26. The combined use of flaps based on subscapular vascular system for unilateral facial deformities.
- Author
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Ugurlu K, Ozçelik D, Hacikerim S, Karasoy A, and Bas L
- Subjects
- Adult, Child, Preschool, Facial Hemiatrophy surgery, Facial Injuries surgery, Facial Neoplasms surgery, Female, Humans, Male, Plastic Surgery Procedures methods, Face surgery, Surgical Flaps blood supply
- Published
- 2000
- Full Text
- View/download PDF
27. Kangal hot spring with fish and psoriasis treatment.
- Author
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Ozçelik S, Polat HH, Akyol M, Yalçin AN, Ozçelik D, and Marufihah M
- Subjects
- Adolescent, Adult, Animals, Female, Follow-Up Studies, Humans, Male, Middle Aged, Mineral Waters, Psoriasis diagnosis, Treatment Outcome, Balneology methods, Fishes, Psoriasis rehabilitation
- Abstract
The effect of "Kangal Hot Spring with Fish" in the treatment of psoriasis is investigated. The study was carried out on 87 patients with psoriasis vulgaris and the patients were evaluated by a dermatologist for 21 days. The evaluation of the disease was performed using PASI (Psoriasis Area and Severity Index) scores. Recurrences were investigated in the patient population, who had been previously treated in the same hot spring. The first examination scores were significantly higher than the scores of the 3, 6, 9, 12, 15 and 21 days after treatment (p < 0.01). Longer remission periods, when compared to the topical corticosteroid treatment, expressed by the 35 patients previously treated in hot spring (p < 0.01). Spa therapy under observation of a dermatologist may be effective and useful for psoriasis vulgaris patients.
- Published
- 2000
- Full Text
- View/download PDF
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