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Dive into the research topics where Alper Aksoy is active.

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Featured researches published by Alper Aksoy.


Burns | 2003

The effects of carnitine on distally-burned dorsal skin flap: an experimental study in rats

Emrah Arslan; Abtullah Milcan; Sakir Unal; Ferit Demirkan; Ayse Polat; Ozlen Bagdatoglu; Alper Aksoy; Gürbüz Polat

OBJECTIVE In ischemia and burn injuries, there are major alterations threatening tissue survival. Increased energy flow requirements are among the major problems in these disorders. Carnitine is an endogenous cofactor, which has a regulatory action on the energy flow from different oxidative sources. The purpose of this study was to determine the effects of carnitine in an experimental flap model. Biochemically, nitric oxide (NO), malondialdehyde (MDA), and acetylcholinesterase levels, and histopathologically tissue examination under light microscope were studied. METHODS In the rat dorsal skin, a 10 cm x 3 cm flap was marked. The most distal 3 cm x 3 cm of the flap was burned to full-thickness. The dorsal flap was elevated, and sutured back to its original site. Sixteen rats were divided into two groups (a control (1) and a study group (2)), consisting of eight rats in each. While the animals in the control group were just followed, the animals in the study group were administrated carnitine with a dose of 100 mg/kg per day for 7 days. RESULTS At the end of the experiment: the mean surviving areas of the flaps were 15.22 cm(2) (50.73%) in group 1, 20.53 cm(2) (68.43%) in group 2, and the difference was statistically significant (P=0.008). In the analysis of blood samples; the mean levels of NO were 22.63 and 40.78 micromol/l; of MDA were 6.74 and 3.79 ng/ml; and of acetylcholinesterase were 136.14 and 222.85 U/l in groups 1 and 2, respectively. The differences in the levels of NO (P=0.001), MDA (0.027) and acetylcholinesterase (P=0.006) were statistically significant. Histopathological examination revealed a full-thickness muscle necrosis in addition to skin tissue in the control group, while healing tissue was present with marked cellularity including mixed inflammatory cells and fibroblast proliferation with an increased vascularity in the form of capillary budding in the study group. CONCLUSION Carnitine has a positive effect in such a model, particularly in preventing the progressive effect of burn, and limiting the necrosis in the full-thickness burned part.


Aesthetic Plastic Surgery | 2003

Irradiated homologous costal cartilage: versatile grafting material for rhinoplasty.

Ferit Demirkan; Emrah Arslan; Sakir Unal; Alper Aksoy

For most surgeons, nasal septal cartilage is the first choice in septoplasty. However, when this source is depleted, an alloplastic implant material might be preferable over other autogenous donor sites in order to avoid additional scars, morbidity, and lengthened operating time. In the alloplastic spectrum, irradiated costal cartilage (ICC) has certain advantages. Herein, we present our results with ICC in a wide range of septorhinoplasties to show its versatility and reliability. Sixty-five patients were included in the study. There were 42 male and 23 female patients. According to the indications, there were four groups of patients: (I) secondary septorhinoplasty (n = 24), (II) traumatic deformity (n = 21), (III) primary septorhinoplasty (n = 13), (IV) deformity due to previous septal surgery (n = 7). The mean follow-up period was 33 months. No significant resorption was detected in any of the patients. Minor complications developed in four cases (6%), including deformity in the dorsal graft, excessive graft length, and erythematous nasal tips. Aesthetic and functional results were satisfactory in the remaining cases. The low incidence of major complications and the versatility of ICC make it a safe and reliable source of cartilage graft for both primary and secondary septorhinoplasties when autogenous septal cartilage is either insufficient or unsuitable.


Laryngoscope | 2007

Upper Lateral Cartilage-Sparing Component Dorsal Hump Reduction in Primary Rhinoplasty

Emrah Arslan; Alper Aksoy

Background: Dorsal hump reduction is a critical step in rhinoplasty. Most of the reasons behind revisional procedures are related to incorrect hump reduction.


European Journal of Ophthalmology | 2005

Bilateral complete avulsion of ocular globes in a Le Fort III maxillofacial fracture: A case report and review of the literature

Sakir Unal; A. Argin; Emrah Arslan; Ferit Demirkan; Alper Aksoy

Purpose The purpose of this paper is to demonstrate a case of bilateral complete avulsion of the globes following maxillofacial trauma. Methods A 23-year-old man with bilateral complete globe avulsion following a maxillofacial trauma. Both globes were luxated out of the orbit and suspended on the skin of the upper lid below the brows. No direct or indirect light reflexes or any eye movements could be noted. Computerized tomography showed complete lacerations of both optic nerves at a level just anterior to the optic canal. There were also multiple fractures corresponding to Le Fort III fracture with Le Fort II components. The brain parenchyma was normal with an exception of brain edema. As the globes were unsuitable for repositioning, both were enucleated. The maxillofacial fractures were immobilized with plates and screws. Although the patient gained consciousness with normal vital signs in the early postoperative period, he died on the ninth day due to Pseudomonas aeruginosa infection, despite invasive antibiotic treatment. Discussion The optic nerve and the globes are very resistant to mild and moderate trauma. The avulsion of the nerve at the canalicular or more posterior level may demonstrate central nervous system complications resulting in life-threatening conditions. The most critical issue in complete globe avulsions with a transected optic nerve is to rescue the vision. In total transected optic nerves the final eyes could only have had cosmetic benefits. In spite of promising experimental research on optic nerve regeneration, there are unknowns, such as the methods to eliminate the risk of anterior segment ischemia and phthisis bulbi. Conclusions Globe avulsions with a complete optic nerve cut remain a challenging problem. More research is required to better understand the pathophysiology of optic nerve repair.


Annals of Plastic Surgery | 2008

Reconstruction of Extensive Pilonidal Sinus Defects With the Use of S-GAP Flaps

Yavuz Basterzi; Hakan Canbaz; Alper Aksoy; Alper Sar; M Özgür Türkmenoğlu; Mehmet Çağlkülekçi

Pilonidal sinus is a chronic intermittent inflammatory condition that is predominantly located in the sacrococcygeal region. For the closure of uncomplicated small pilonidal sinuses, conventional therapeutic techniques including total excision of the sinus and leaving the defect open for secondary healing have been reported with varying success rates. However, the treatment of recurrent and extensive disease remains as a difficult condition. The ideal treatment should be associated with short hospital stay, minimal complication rates, and no disease recurrence. Secondary wound healing after large excision results in a chronic wound that requires cleansing and dressing changes for a long time. The condition also negatively affects the patients social life. With the progression of reconstructive techniques, the lowest recurrence rates for the treatment of extensive disease have been reported after local flap usage. The purpose of the current article is to report the efficacy of superior gluteal artery perforator flap in the reconstruction of extensive sacrococcygeal pilonidal sinus defects. This perforator flap is a refinement of the classic gluteal musculocutaneous flaps, which have been popularly used for the closure of sacral pressure sores over many years.


International Wound Journal | 2011

Vacuum‐assisted closure therapy leads to an increase in plasma fibronectin level

Emrah Arslan; Ozlem Goruroglu Ozturk; Alper Aksoy; Gürbüz Polat

An extensive research has been performed to investigate the mechanisms of action by which the application of subatmospheric pressure to wounds increases the rate of healing. Increased blood flow with vacuum‐assisted closure (VAC) use is the most popular aspect. Fibronectin, which is an adhesion molecule, has several functional domains mediating chemotaxis, adhesion and migration. This is thereby involved in differentiation, proliferation, inflammation and thus in wound healing. In this study, plasma fibronectin levels were measured before and after VAC in patients with wounds. The results showed that there was an increase in pre‐ and post‐VAC levels of plasma fibronectin. This statistically significant increase could be another explanation of how VAC therapy promotes wound healing.


Journal of Craniofacial Surgery | 2009

Reconstruction of the oral commissure with the use of a new technique: the asterisk design.

Alper Sari; Alper Aksoy; Yavuz Basterzi; Sakir Unal

Microstomia reconstruction due to the presence a blunted oral commissure is a challenging task because it requires the restoration of intricately balanced distinct layers of tissues: the oral mucosa, the orbicular muscle, the vermilion border, and the perioral skin. The reliability of commissural reconstruction depends on 2 factors: the first one is breaking the contraction vectors causing blunting of the commissure and the second one is restoring the integrity of the oral sphincter. We have used local skin, vermilion border-muscle, and mucosa flaps designed in an asterisk pattern to break the contraction vectors and have paid certain attention to the restoration of the sphincter function of the circular muscle fibers. Our results have shown that, with the use of our asterisk design, a new commissure aesthetically comparable to the natural one can be created with the reestablishment of reliable oral competence.


Annals of Plastic Surgery | 2017

Fingertip Replantation Without and With Palmar Venous Anastomosis: Analysis of the Survival Rates and Vein Distribution.

Alper Aksoy; Melike Güngör; Emin Sir

Background The purpose of this study was to compare the results of fingertip replantations without (artery anastomosis only replantations) and with venous anastomosis (replantations in which both arterial and palmar venous anastomoses were performed). Also, distribution of the veins used for anastomosis was analyzed retrospectively. Patients and Methods First 53 digits (47 patients) received only arterial anastomosis (group 1). For relieving venous congestion, external bleeding method was used. Last 41 digits (38 patients) received both arterial and palmar venous anastomoses without external bleeding (group 2). Results There was statistical significance of the survival rate between group 1 [77.3% (41/53)] and group 2 [92.6% (38/41)] (P = 0.039). Venous congestion was encountered at 10 digits in group 1 (all underwent necrosis totally) and at 3 digits in group 2 (both were moderate and could be salvaged partially) (P = 0.094, no statistical significance). There was statistical significance of the mean operation time for single-fingertip replantation between group 1 (80 ± 7.8 minutes) and group 2 (105 ± 14.5 minutes) (P < 0.001). The average external bleeding period was 7.2 days. The mean hospital stay was 12.4 ± 1.5 days for group 1, which was significantly longer when compared with group 2 (5.2 ± 0.5 days, P < 0.001). Conclusions Although palmar vein anastomosis did not show a statistically significant effect on relieving venous congestion, it reduced the rate and the severity of venous congestion. Also, replantations with palmar venous anastomosis have simpler postoperative care and lower drawbacks as compared with artery anastomosis–only replantations.


Annals of Plastic Surgery | 2016

Effect of Reduction Mammaplasty on Sexual Activity.

Emin Sir; Oktay Üçer; Melike Güngör; Alper Aksoy; Yavuz Keçeci

AimThis study aimed to evaluate the effects of reduction mammaplasty operation on sexual functions of the patients with macromastia and of their partners. Materials and MethodsThirty-nine patients with macromastia and their partners were assessed for their sexual function before and 6 months after reduction mammaplasty. Sexual function of the women and their partners were evaluated using the Index of Female Sexual Function (IFSF) and the International Index of Erectile Function (IIEF), respectively. Controls (n = 33) were chosen from healthy hospital staff and their partners. Preoperative and postoperative scores were statistically compared with the controls’ scores by using Student t test. Also, preoperative and postoperative scores were compared by using paired t test. ResultsThe mean of age and body mass index of the women and their partners in the patient and control group were similar (P = 0.07). Before the operation, the mean of IFSF scores in the patient and control group were 22.75 (3.45) and 27.28 (5.05), respectively (P < 0.001). After the operation, the mean of IFSF scores in the patient group increased significantly to 27.67 (P < 0.001). The postoperative scores of all IFSF subscales except lubrication subscale were higher than the preoperative scores. Although there was no significant difference between preoperative and postoperative IIEF-total scores, postoperative IIEF-erectile function and IIEF-intercourse satisfaction scores were significantly reduced (P < 0.05). ConclusionsWe found that macromastia adversely affected female sexual function but reduction mammaplasty eliminated this adverse effect. We also found that the partners’ erectile function and intercourse satisfaction reduced after the operation. This reduction may be due to psychological effects.


Turkish journal of trauma & emergency surgery | 2018

Comparisons between long-term outcomes of the use of reposition flaps and replantations in fingertip amputations

Emin Sir; Alper Aksoy; Meliha Kasapoglu Aksoy

BACKGROUND Replantation is the gold standard procedure for traumatic amputation of fingertips. Reposition flap procedure is performed using nail-bone complex as a free graft and covering graft site with a flap to preserve original finger length, nail complex, and sensory functions of fingertip in pateints where microsurgical methods cannot be applied. In our study, we aimed to compare the long-term outcomes of patients with amputated fingertips who underwent replantation or reposition flap procedures. METHODS Thirty-five patients of replantation and 28 patients of reposition flap procedures only for 2nd, 3rd, and 4th fingertip amputations were included in the study. Complete fingertip amputations involved Foucher zones 2 and 3. The patients were followed up postoperatively for a median period of 13 months (9-23 months). All patients were assessed with static and dynamic 2-point discrimination tests, Semmes-Weinstein monofilament test, and cold intolerance test for the development of neuroma on the donor site. RESULTS In 5 patients, replantation procedure failed. In such failed patients, after the removal of necrotic tissues, the stump was either repaired or reconstruction with a flap was applied. Wound dehiscence was observed at the lateral sides of the flaps in 2 patients who underwent reposition procedures. CONCLUSION Reposition flap repair can be a good cost-effective alternative to other fingertip repair procedures in appropriately selected patients who are not amenable to microsurgery. It preserves the length and sensory functions of fingertips and enables patients to return to their daily life as soon as possible.

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Emin Sir

Celal Bayar University

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