Pharyngeal airway dimensions in skeletal class II: A cephalometric growth study

Uslu-Akcam, Ozge Korean Academy of Oral and Maxillofacial Radiology 2017 Imaging Science in Dentistry Vol.47 No.1

Purpose: This retrospective study aimed to evaluate the nasopharyngeal and oropharyngeal dimensions of individuals with skeletal class II, division 1 and division 2 patterns during the pre-peak, peak, and post-peak growth periods for comparison with a skeletal class I control group. Materials and Methods: Totally 124 lateral cephalograms (47 for skeletal class I; 45 for skeletal class II, division 1; and 32 for skeletal class II, division 2) in pre-peak, peak, and post-peak growth periods were selected from the department archives. Thirteen landmarks, 4 angular and 4 linear measurements, and 4 proportional calculations were obtained. The ANOVA and Duncan test were applied to compare the differences among the study groups during the growth periods. Results: Statistically significant differences were found between the skeletal class II, division 2 group and other groups for the gonion-gnathion/sella-nasion angle. The sella-nasion-B-point angle was different among the groups, while the A-point-nasion-B-point angle was significantly different for all 3 groups. The nasopharyngeal airway space showed a statistically significant difference among the groups throughout the growth periods. The interaction among the growth periods and study groups was statistically significant regarding the upper oropharyngeal airway space measurement. The lower oropharyngeal airway space measurement showed a statistically significant difference among the groups, with the smallest dimension observed in the skeletal class II, division 2 group. Conclusion: The naso-oropharyngeal airway dimensions showed a statistically significant difference among the class II, division 1; class II, division 2; and class I groups during different growth periods.

Pharyngeal airway dimensions in skeletal class II: A cephalometric growth study

Ozge Uslu-Akcam 대한영상치의학회 2017 Imaging Science in Dentistry Vol.47 No.1

Purpose: This retrospective study aimed to evaluate the nasopharyngeal and oropharyngeal dimensions of individuals with skeletal class II, division 1 and division 2 patterns during the pre-peak, peak, and post-peak growth periods for comparison with a skeletal class I control group. Materials and Methods: Totally 124 lateral cephalograms (47 for skeletal class I; 45 for skeletal class II, division 1; and 32 for skeletal class II, division 2) in pre-peak, peak, and post-peak growth periods were selected from the department archives. Thirteen landmarks, 4 angular and 4 linear measurements, and 4 proportional calculations were obtained. The ANOVA and Duncan test were applied to compare the differences among the study groups during the growth periods. Results: Statistically significant differences were found between the skeletal class II, division 2 group and other groups for the gonion-gnathion/sella-nasion angle. The sella-nasion-B-point angle was different among the groups, while the A-point-nasion-B-point angle was significantly different for all 3 groups. The nasopharyngeal airway space showed a statistically significant difference among the groups throughout the growth periods. The interaction among the growth periods and study groups was statistically significant regarding the upper oropharyngeal airway space measurement. The lower oropharyngeal airway space measurement showed a statistically significant difference among the groups, with the smallest dimension observed in the skeletal class II, division 2 group. Conclusion: The naso-oropharyngeal airway dimensions showed a statistically significant difference among the class II, division 1; class II, division 2; and class I groups during different growth periods.

The efficacy of 18F-FDG PET/CT in the preoperative evaluation of pancreatic lesions

Atilgan Tolga Akcam,Zafer Teke,Ahmet Gokhan Saritas,Abdullah Ulku,Isa Burak Guney,Ahmet Rencuzogullari 대한외과학회 2020 Annals of Surgical Treatment and Research(ASRT) Vol.98 No.4

Purpose: Since the treatment strategy for benign and malignant pancreatic lesions differ, we aimed to evaluate the clinical value of PET/CT in the diagnosis and management of pancreatic lesions. Methods: Ninety patients who had a histologically confirmed pancreatic lesion were studied. Receiver operating characteristic (ROC) curve analysis was used to investigate the ability of PET/CT to differentiate malignant lesions from benign tumors. Results: The malignant and benign groups comprised 64 and 26 patients, respectively. Despite the similarity in the size of primary tumors (P = 0.588), the mean maximum standardized uptake values (SUVmax) obtained from PET/CT imaging were significantly higher in malignant lesions (9.36 ± 5.9) than those of benign tumors (1.04 ± 2.6, P < 0.001). ROC analysis showed that the optimal SUVmax cutoff value for differentiating malignant lesions (to an accuracy of 91%; 95% confidence interval, 83%–98%) from benign tumors was 3.9 (sensitivity, 92.2%; specificity, 84.6%). Conclusion: PET/CT evaluation of pancreatic lesions confers advantages including fine assessment of malignant potential with high sensitivity and accuracy using a threshold SUVmax value of 3.9.

The usefulness of drainage-internal capitonnage with/ without selective bile duct repair technique for liver hydatid cyst

Atılgan Tolga Akcam,Ahmet Gokhan Saritas,Kubilay Dalcı,Abdullah Ulku 대한외과학회 2021 Annals of Surgical Treatment and Research(ASRT) Vol.100 No.5

Purpose: The aim of the present study is to describe the cavity-reducing internal capitonnage technique that we used for the surgical therapy of liver hydatid cyst, and contribute to the literature by presenting the short- and long-term outcomes of the patients who were operated on with this technique. Methods: A drainage and internal capitonnage technique was performed on 12 cases due to liver hydatid cyst in our clinic between January 2016 and December 2019. Results: The mean age of cases was 36.25 ± 12.5 years, with 7 females and 5 males. All cases had pain in the right upper quadrant, and a sense of fullness in 5 cases. None of the cases had ruptured cysts, jaundice, or other clinical manifestations. The preoperative laboratory findings were normal in 8 cases. Intraoperative biliary-cyst communication was demonstrated in 8 cases (66.7%). Cases were followed up for a mean duration of 38.1 months (range, 24–88 months). Conclusion: The drainage/internal capitonnage with/without selective bile duct repair is a technique that can be performed with very low morbidity and mortality rates in experienced hands, especially for centrally located hydatid cysts.

Comparison of the Practical and Theoretical Knowledge of the Hepatitis B Virus among Dental Hygiene Students

( Sinan Yasin Ertem ),( Sertac Ozdogan ),( Ayla Ozturk ),( Ozge Akcam ) 한국치위생과학회 2020 치위생과학회지 Vol.20 No.3

Background: Hepatitis B is an important public health problem as one of the leading causes of morbidity and mortality. The aim of this study was to compare the theoretical and practical knowledge levels of dental assistant students about Hepatitis B Virus. Methods: The 1st and 2nd grade students of the Oral and Dental Health program were invited to participate in the survey. Out of the 68 invited students, 61 completed the questionnaire. The average ages of the male and female students surveyed were 20.27±1.45 and 19.56±1.16, respectively. A total of 34 questions were asked, of which 15 measured basic theoretical knowledge and 19 assessed basic practical knowledge. Results: There was no statistically significant difference between the students’ knowledge for each question according to their sex and grade. When the questionnaire was grouped into basic theoretical and basic practical knowledge levels, both were observed to be high. While the lowest correct answer rate was 35.00% for the questions about practical applications, it was 31.14% for the questions measuring the level of theoretical knowledge. There was no statistically significant difference when the levels of knowledge of 1st and 2nd grade students were compared. Students answered the majority of the questions correctly, and ranged between 71% and 100%. Conclusion: Students’ high level of basic theoretical knowledge can be a result of their in-class education on the fundamentals. However, their knowledge about the correct approaches in practical applications indicates the beneficial role of having well-defined criteria and prevention protocols that are required in hospitals and the effectiveness of their environmental orientations.

Xanthogranulomatous cholecystitis: a rare gallbladder pathology from a single-center perspective

Ahmet Gokhan Saritas,Mehmet Onur Gul,Zafer Teke,Abdullah Ulku,Ahmet Rencuzogullari,Ishak Aydin,Atilgan Tolga Akcam 대한외과학회 2020 Annals of Surgical Treatment and Research(ASRT) Vol.99 No.4

Purpose: The aim of this study was to review patients with xanthogranulomatous cholecystitis (XGC). Methods: A total of 79 patients diagnosed with XGC were included in the study. The criteria for XGC in the pathology specimens were the presence of histiocytes, cholesterol deposits, lipids, and focal or widespread wall enlargement. Results: Patients were diagnosed with XGC, of which 52 (65.8%) were male and 27 (34.2%) were female, creating a male-to-female ratio of 2:1. The mean age was 65.8 ± 14.3 years (range, 36–97 years). The most common presenting symptom was abdominal pain (63.3%), and the least common presenting symptom was jaundice (8.9%). Of the total, 25 patients were found to have pathological conditions with the potential to obstruct the bile duct or to slow bile flow. A frozen section examination was performed on 20 patients due to suspicion of a tumor by intraoperative macroscopic examination. However, no malignancy was detected in the cases who underwent a frozen section examination. An increase in wall thickness of the gallbladder was observed in 81.6% (n = 31) of the patients on computed tomography scans and in 81.8% (n = 18) of the patients on magnetic resonance imaging scans in which possible tumor lesions were reported, but no tumor was detected. Conclusion: It is difficult to diagnose XGC either preoperatively or intraoperatively, and further imaging methods are needed in the preoperative period other than ultrasonography. However, a definitive diagnosis depends exclusively on pathologic examination.