Browsing by Author "Pelin, Can"

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Anatomic Variations of The Celiac Trunk and Hepatic Arterial System with Digital Subtraction Angiography
(2014) Zagyapan, Ragiba; Kurkcuoglu, Ayla; Bayraktar, Ahmet; Pelin, Can; Aytekin, Cuneyt; https://orcid.org/0000-0003-0901-8883; https://orcid.org/0000-0001-5134-168X; 25910286; AEJ-3035-2022
Background/Aims: Anatomical variation of the abdominal arteries is important. Historic and modern anatomists, radiologists, as well as surgeons have reported and accumulated anatomical variations with a morphological and clinical interest. During graft procurement and reconstruction, accidental injury of the hepatic artery is more likely in the presence of hepatic arterial variation, which can be a common clinical entity. During cadaveric dissection and diagnostic radiological imaging, various types of vascular anomalies are frequently found in human abdominal viscera, especially the celiac trunk. The aim of the present study is to determine anatomical variations in the celiac trunk and hepatic arterial system. Materials and Methods: Digital subtraction angiography data were collected from 152 consecutive donor patients (103 males and 49 females, aged between 6 and 77 years) who underwent orthotopic liver transplantation. Results: We examined the anatomy of the celiac trunk in a total of 152 consecutive patients. In total, 62.5% (95/152) of patients showed the classical trifurcation of the celiac trunk. Variant right hepatic arteries arising from the superior mesenteric artery were observed in 17.8% (27/152), the hepatic arteries arising from the left gastric artery were found in 13.1% (20/152), and common hepatic arteries arising from the superior mesenteric artery were observed in 6.6% (10/152) of patients. Conclusion: These data are useful for planning and performing surgical and radiological procedures of the upper abdomen.
Anatomical assessment of chest radiographs
(2018) Ozsahin, Esin; Boyan, Neslihan; Kizilkanat, Emine; Demir, Senay; Pelin, Can; Soames, Roger W.; Oguz, Ozkan
Purpose: The aim of this study was to determine the frequency of anatomical parameters and their measurement as seen on normal posteroanterior (PA) chest radiographs in a Turkish population. Materials and Methods: We evaluated fifty normal PA chest radiographs of Turkish population adults. The frequency of anatomical parameters and their measurement with respect to the diaphragm was evaluated. Results: The frequency of anatomical parameters and their measurement with respect to the diaphragm is as follows: level (right side higher in 98%, left and right sides same level 2%), lobulation (88% absent, 12% present), eventration (98% absent, 2% present) and contour (90% smooth, 10% not smooth); level of hilum (right and left sides same level 52%, left side higher 36%, right side higher 12%); number of pairs of ribs (twelve 96%, unable to determine 4%); number of ribs superposing the lung parenchyma (seven 2%, eight 4%, nine 24%, ten 70%); distance from the lateral margin of the vertebral body to the aorta (16.44 +/- 4.35 mm); angle between the vertebral body and the aorticopulmonary line (16.04 +/- 3.110); the carina angle (58.46 +/- 11.130) and the cardiothoracic ratio (38.75 +/- 4.27). Conclusion: The data presented in this study may be useful in understanding normal thoracic structures. A knowledge of the normal anatomy as well as variations are significant for physicians in the assessment of chest radiographs.
Anthropometric Measurement and Analysis of the Lower Face in Turkish Rhinoplasty Patients
(2015) Abbas, Ozan Luay; Kurkcoglu, Ayla; Pelin, Can; Yazici, Ayse Canan; 0000-0003-0901-8883; 0000-0002-3132-242X; AEJ-3035-2022; AAS-6810-2021
Background Lower face dimensions have a great impact on the perception of nasal beauty. For this reason, evaluation of the lower face is important in patients applied for rhinoplasty. In this study, we aimed to describe the values of lower face anthropometric measurements in Turkish patients who applied for rhinoplasty and to compare these values with measurements of individuals who are pleased with their nasal appearance. Methods A Turkish population of 252 rhinoplasty-negative individuals and 171 rhinoplasty patients were included in this study as the control and rhinoplasty groups. Using the preoperative photographs of the facial profile, seven vertical measurements were taken and seven indices were used to determine the relationships between measurements of the lower face. Results In the rhinoplasty group, most vertical profile measurements were greater in males. The only variables with no gender differences were lower and upper vermilion heights. Only variables with a significant difference between two groups were upper lip vermilion height in females and upper lip height in males. Conclusions This study provides objective reference material for the evaluation of the lower face when planning for rhinoplasty. Besides, the differences found between two groups emphasize the importance of the nasolabial region when planning for rhinoplasty.
Attitudes of Turkish university employees and their relatives towards whole body and organ donation
(2020) Oktem, Hale; Pelin, Can; Kurkcuoglu, Ayla; Yildirim, Rifat Vedat; Guvercin, Ayse Canan Yazici; 31676348
Background: Dissection of human anatomic specimens still keeps its importance in medical curriculum. Experiences of medical students in the anatomy laboratory and the time they spent there makes them feel as doctors at the beginning of their education and helps them to get used to the notion of death. Unfortunately, the number of human body donors available for medical research and education as well as organ transplantation is limited. Obtaining human anatomic specimens continues being a great problem especially in middle-east countries. Religious factors, socioeconomic status, education, marital status or age are probably the main factors those effect body donations. The aim of the present study is to evaluate the attitudes of Turkish university employees and their relatives towards whole body donation and organ donation. Methods: A total of 780 questionnaires taken from the participants were evaluated. All the participants were academic and administrative staff from four different universities based in Ankara, Eskisehir, Istanbul and Adana and their relatives. Participants were between the ages of 18-85. All the subjects were provided a questionnaire composed of 38 questions. Findings: 26.2% of the individuals declared that they could donate their body for medical education while 73.8% of them did not. In contrast, 69.1% of the participants were willing for being organ donors. Of the ones who had accepted to donate their organs, 64.5% refused to donate their bodies. Conclusion: The results of this study indicate that not only whole body donation, but also organ donation continue being a problem in Turkey. (C) 2019 Elsevier GmbH. All rights reserved.
Perception of Symmetry in Aesthetic Rhinoplasty Patients: Anthropometric, Demographic, and Psychological Analysis
(2017) Abbas, Ozan Luay; Kurkcuoglu, Ayla; Aytop, Cigdem Derya; Uysal, Cengiz; Pelin, Can; https://orcid.org/0000-0003-0901-8883; 28614976; AEJ-3035-2022
Visual perception of symmetry is a major determinant of satisfaction after aesthetic rhinoplasty. In this study, we sought to investigate the existence of any relationship between anthropometric characteristics of the face and visual perceptions of asymmetry among rhinoplasty patients and to evaluate tools that can shed light on patients who appear at high risk for exaggerating potential asymmetries. In the first part, 168 rhinoplasty patients were asked to fill out the demographic questionnaire, nasal shape evaluation scale, and the somatosensory amplification scale. In the second part, we examined the relationship between anthropometric characteristics of the face and visual perceptions of asymmetry using standardized photographs of 100 medical students. In the third part, patients answered the rhinoplasty outcome evaluation questionnaire 6 months after the surgery. Objectively, no symmetrical face was observed in the anthropometric evaluation. Subjectively, only 73% and 54% of the faces were considered asymmetrical by the rhinoplasty and the control groups, respectively. The rate of asymmetry perception was significantly greater in revision patients when compared with primary rhinoplasty patients. The relationship between the rate of subjective perception of asymmetry and the somatosensory amplification scale scores was statistically significant. We found a significant inverse relationship between the rate of asymmetry perception and the rhinoplasty outcome evaluation scores. Plastic surgeons should be aware of this high selectivity in asymmetry perception, which is associated with poor postoperative satisfaction. Somatosensory amplification scale may help identify rhinoplasty patients at a high risk for exaggerating potential asymmetries.
Volumetric and morphologic changes due to effect of unilateral extraction of teeth
(2016) Kurkcuoglu, Ayla; Pelin, Can
Objective: Chewing includes the rhythmic movement of the jaw muscles. In this study, we investigated volumetric changes in the masticatory muscles and morphometric changes in the mandibular condyle due to unilateral extraction of the teeth in the sixth and twelfth weeks of life. Materials and Methods: Eighteen rats were used. The rats were divided into three groups. In the experimental groups (Groups I and II), all of the teeth on one side of the upper and lower jaws of the rats were extracted. In the control group all the teeth were intact. Volumetric changes of the masseter and temporal muscles were evaluated. In addition, morphometric changes of the mandibular condyle were investigated. Results: The measurements performed six weeks after tooth extraction did not reveal any difference in the temporal muscles between the two sides, however the volume of the masseter muscle on the side of the extraction was significantly reduced (Group I). Twelve weeks after the tooth extraction, the volumes of the masseter and temporal muscles showed significant reduction on the side of the extraction (Group II). A morphometric reduction in the mandibular condyle was observed in the longer period of time. No asymmetry was observed either for muscular volumes or for mandibular condyle dimensions in the control group. Conclusion: Unilateral tooth loss may cause volumetric reduction in the masseter and temporal muscles ipsilaterally. However, the cause of the morphometric reduction in the mandibular condyle on the contralateral side in the longer period of time is surprising.