1.The Impact of Optical Illusions on the Vestibular System
Şeyma Tuğba ÖZTÜRK ; Mustafa Bülent ŞERBETÇIOĞLU ; Kerem ERSIN ; Oğuz YILMAZ
Journal of Audiology & Otology 2021;25(3):152-158
Background and Objectives:
Balance control is maintained in stationary and dynamic conditions, with coordinated muscle responses generated by somatosensory, vestibular, and visual inputs. This study aimed to investigate how the vestibular system is affected in the presence of an optical illusion to better understand the interconnected pathways of the visual and vestibular systems.
Subjects and Methods:
The study involved 54 young adults (27 males and 27 females) aged 18-25 years. The recruited participants were subjected to the cervical vestibular evoked myogenic potentials (cVEMP) test and video head impulse test (vHIT). The cVEMP and vHIT tests were performed once each in the absence and presence of an optical illusion. In addition, after each test, whether the individuals felt balanced was determined using a questionnaire.
Results:
cVEMP results in the presence of the optical illusion showed shortened latencies and increased amplitudes for the left side in comparison to the results in the absence of the optical illusion (p≤0.05). When vHIT results were compared, it was seen that the right lateral and bilateral anterior canal gains were increased, almost to 1.0 (p<0.05).
Conclusions
It is thought that when the visual-vestibular inputs are incompatible with each other, the sensory reweighting mechanism is activated, and this mechanism strengthens the more reliable (vestibular) inputs, while suppressing the less reliable (visual) inputs. As long as the incompatible condition persists, the sensory reweighting mechanism will continue to operate, thanks to the feedback loop from the efferent vestibular system.
2.Endovascular Treatment of a Giant Aneurysm of the Aberrant Right Hepatic Artery in a Patient with Osler-Weber-Rendu Syndrome:A Case Report
Mehmet Burak ÇILDAĞ ; Mustafa GÖK ; Tuğba ÖZTÜRK ; Ömer Faruk Kutsi KÖSEOĞLU
Vascular Specialist International 2023;39(3):25-
Osler-Weber-Rendu syndrome (OWR) is an autosomal dominant disorder characterized by recurrent epistaxis, mucocutaneous or visceral telangiectasias, and arteriovenous malformations in the lungs, liver, brain, and gastrointestinal tract. Hepatic artery aneurysms (HAAs) can also occur in OWR patients. HAAs are the second most common type of visceral artery aneurysm, and mortality rates are high owing to the lack of a tamponade effect. Anatomical variations of the celiacomesenteric vasculature are common, and the most common variation is that of the right hepatic artery originating from the superior mesenteric artery (SMA). We present the endovascular treatment of a patient with OWR and an aberrant right HAA originating from the SMA, with coil embolization and stent grafting. Giant HAAs can be treated endovascularly. However, stent graft placement should be reconsidered because of the need for antithrombotic medication, which may increase the incidence of epistaxis attacks in that patient group.
3.Prognostic factors of adult granulosa cell tumors of the ovary: a Turkish retrospective multicenter study
Okan OKTAR ; Vakkas KORKMAZ ; Alp TOKALIOĞLU ; Çağatayhan ÖZTÜRK ; Özgür ERDOĞAN ; Yeşim UÇAR ; Hande Esra KOCA YILDIRIM ; Candost HANEDAN ; Fatih KILIÇ ; Burak ERSAK ; Necim YALÇIN ; Fatma ÖZMEN ; Alper KAHRAMAN ; Selin Aktürk ESEN ; Sevda BAŞ ; Emel Doğan ÖZDAŞ ; İlker SELÇUK ; Gökhan UÇAR ; Özgür KOÇAK ; Caner ÇAKIR ; Sevgi KOÇ ; Çiğdem KILIÇ ; Günsu Kimyon CÖMERT ; Işın ÜREYEN ; Tayfun TOPTAŞ ; Mehmet Ali NARIN ; Tolga TAŞÇI ; Salih TAŞKIN ; Nurettin BORAN ; Muzaffer SANCI ; Fahriye Tuğba KÖŞ ; Özlem Moraloğlu TEKIN ; Yaprak Engin ÜSTÜN ; Fırat ORTAÇ ; Taner TURAN
Journal of Gynecologic Oncology 2024;35(3):e39-
Objective:
To define the clinical, histopathological features and the prognostic factors affecting survival in patients with adult granulosa cell tumors of the ovary (AGCT).
Methods:
A 322 patients whose final pathologic outcome was AGCT treated at nine tertiary oncology centers between 1988 and 2021 participated in the study.
Results:
The mean age of the patients was 51.3±11.8 years and ranged from 21 to 82 years.According to the International Federation of Gynecology and Obstetrics 2014, 250 (77.6%) patients were stage I, 24 (7.5%) patients were stage II, 20 (6.2%) patients were stage III, and 3 (7.8%) were stage IV. Lymphadenectomy was added to the surgical procedure in 210(65.2%) patients. Lymph node involvement was noted in seven (3.3%) patients. Peritoneal cytology was positive in 19 (5.9%) patients, and 13 (4%) had metastases in the omentum. Of 285 patients who underwent hysterectomy, 19 (6.7%) had complex hyperplasia with atypia/ endometrial intraepithelial neoplasia, and 8 (2.8%) had grade 1 endometrioid endometrial carcinoma. It was found that 93 (28.9%) patients in the study group received adjuvant treatment. Bleomycin, etoposide, cisplatin was the most commonly used chemotherapy protocol. The median follow-up time of the study group was 41 months (range, 1–276months). It was noted that 34 (10.6%) patients relapsed during this period, and 9 (2.8%)patients died because of the disease. The entire cohort had a 5-year disease-free survival (DFS) of 86% and a 5-year disease-specific survival of 98%. Recurrences were observed only in the pelvis in 13 patients and the extra-abdominal region in 7 patients. The recurrence rate increased 6.168-fold in patients with positive peritoneal cytology (95% confidence interval [CI]=1.914–19.878; p=0.002), 3.755-fold in stage II–IV (95% CI=1.275–11.063; p=0.016), and 2.517-fold in postmenopausal women (95% CI=1.017–6.233; p=0.046) increased.
Conclusion
In this study, lymph node involvement was detected in 3.3% of patients with AGCT. Therefore, it was concluded that lymphadenectomy can be avoided in primary surgical treatment. Positive peritoneal cytology, stage, and menopausal status were independent prognostic predictors of DFS.
4.Prognostic factors of adult granulosa cell tumors of the ovary: a Turkish retrospective multicenter study
Okan OKTAR ; Vakkas KORKMAZ ; Alp TOKALIOĞLU ; Çağatayhan ÖZTÜRK ; Özgür ERDOĞAN ; Yeşim UÇAR ; Hande Esra KOCA YILDIRIM ; Candost HANEDAN ; Fatih KILIÇ ; Burak ERSAK ; Necim YALÇIN ; Fatma ÖZMEN ; Alper KAHRAMAN ; Selin Aktürk ESEN ; Sevda BAŞ ; Emel Doğan ÖZDAŞ ; İlker SELÇUK ; Gökhan UÇAR ; Özgür KOÇAK ; Caner ÇAKIR ; Sevgi KOÇ ; Çiğdem KILIÇ ; Günsu Kimyon CÖMERT ; Işın ÜREYEN ; Tayfun TOPTAŞ ; Mehmet Ali NARIN ; Tolga TAŞÇI ; Salih TAŞKIN ; Nurettin BORAN ; Muzaffer SANCI ; Fahriye Tuğba KÖŞ ; Özlem Moraloğlu TEKIN ; Yaprak Engin ÜSTÜN ; Fırat ORTAÇ ; Taner TURAN
Journal of Gynecologic Oncology 2024;35(3):e39-
Objective:
To define the clinical, histopathological features and the prognostic factors affecting survival in patients with adult granulosa cell tumors of the ovary (AGCT).
Methods:
A 322 patients whose final pathologic outcome was AGCT treated at nine tertiary oncology centers between 1988 and 2021 participated in the study.
Results:
The mean age of the patients was 51.3±11.8 years and ranged from 21 to 82 years.According to the International Federation of Gynecology and Obstetrics 2014, 250 (77.6%) patients were stage I, 24 (7.5%) patients were stage II, 20 (6.2%) patients were stage III, and 3 (7.8%) were stage IV. Lymphadenectomy was added to the surgical procedure in 210(65.2%) patients. Lymph node involvement was noted in seven (3.3%) patients. Peritoneal cytology was positive in 19 (5.9%) patients, and 13 (4%) had metastases in the omentum. Of 285 patients who underwent hysterectomy, 19 (6.7%) had complex hyperplasia with atypia/ endometrial intraepithelial neoplasia, and 8 (2.8%) had grade 1 endometrioid endometrial carcinoma. It was found that 93 (28.9%) patients in the study group received adjuvant treatment. Bleomycin, etoposide, cisplatin was the most commonly used chemotherapy protocol. The median follow-up time of the study group was 41 months (range, 1–276months). It was noted that 34 (10.6%) patients relapsed during this period, and 9 (2.8%)patients died because of the disease. The entire cohort had a 5-year disease-free survival (DFS) of 86% and a 5-year disease-specific survival of 98%. Recurrences were observed only in the pelvis in 13 patients and the extra-abdominal region in 7 patients. The recurrence rate increased 6.168-fold in patients with positive peritoneal cytology (95% confidence interval [CI]=1.914–19.878; p=0.002), 3.755-fold in stage II–IV (95% CI=1.275–11.063; p=0.016), and 2.517-fold in postmenopausal women (95% CI=1.017–6.233; p=0.046) increased.
Conclusion
In this study, lymph node involvement was detected in 3.3% of patients with AGCT. Therefore, it was concluded that lymphadenectomy can be avoided in primary surgical treatment. Positive peritoneal cytology, stage, and menopausal status were independent prognostic predictors of DFS.
5.Prognostic factors of adult granulosa cell tumors of the ovary: a Turkish retrospective multicenter study
Okan OKTAR ; Vakkas KORKMAZ ; Alp TOKALIOĞLU ; Çağatayhan ÖZTÜRK ; Özgür ERDOĞAN ; Yeşim UÇAR ; Hande Esra KOCA YILDIRIM ; Candost HANEDAN ; Fatih KILIÇ ; Burak ERSAK ; Necim YALÇIN ; Fatma ÖZMEN ; Alper KAHRAMAN ; Selin Aktürk ESEN ; Sevda BAŞ ; Emel Doğan ÖZDAŞ ; İlker SELÇUK ; Gökhan UÇAR ; Özgür KOÇAK ; Caner ÇAKIR ; Sevgi KOÇ ; Çiğdem KILIÇ ; Günsu Kimyon CÖMERT ; Işın ÜREYEN ; Tayfun TOPTAŞ ; Mehmet Ali NARIN ; Tolga TAŞÇI ; Salih TAŞKIN ; Nurettin BORAN ; Muzaffer SANCI ; Fahriye Tuğba KÖŞ ; Özlem Moraloğlu TEKIN ; Yaprak Engin ÜSTÜN ; Fırat ORTAÇ ; Taner TURAN
Journal of Gynecologic Oncology 2024;35(3):e39-
Objective:
To define the clinical, histopathological features and the prognostic factors affecting survival in patients with adult granulosa cell tumors of the ovary (AGCT).
Methods:
A 322 patients whose final pathologic outcome was AGCT treated at nine tertiary oncology centers between 1988 and 2021 participated in the study.
Results:
The mean age of the patients was 51.3±11.8 years and ranged from 21 to 82 years.According to the International Federation of Gynecology and Obstetrics 2014, 250 (77.6%) patients were stage I, 24 (7.5%) patients were stage II, 20 (6.2%) patients were stage III, and 3 (7.8%) were stage IV. Lymphadenectomy was added to the surgical procedure in 210(65.2%) patients. Lymph node involvement was noted in seven (3.3%) patients. Peritoneal cytology was positive in 19 (5.9%) patients, and 13 (4%) had metastases in the omentum. Of 285 patients who underwent hysterectomy, 19 (6.7%) had complex hyperplasia with atypia/ endometrial intraepithelial neoplasia, and 8 (2.8%) had grade 1 endometrioid endometrial carcinoma. It was found that 93 (28.9%) patients in the study group received adjuvant treatment. Bleomycin, etoposide, cisplatin was the most commonly used chemotherapy protocol. The median follow-up time of the study group was 41 months (range, 1–276months). It was noted that 34 (10.6%) patients relapsed during this period, and 9 (2.8%)patients died because of the disease. The entire cohort had a 5-year disease-free survival (DFS) of 86% and a 5-year disease-specific survival of 98%. Recurrences were observed only in the pelvis in 13 patients and the extra-abdominal region in 7 patients. The recurrence rate increased 6.168-fold in patients with positive peritoneal cytology (95% confidence interval [CI]=1.914–19.878; p=0.002), 3.755-fold in stage II–IV (95% CI=1.275–11.063; p=0.016), and 2.517-fold in postmenopausal women (95% CI=1.017–6.233; p=0.046) increased.
Conclusion
In this study, lymph node involvement was detected in 3.3% of patients with AGCT. Therefore, it was concluded that lymphadenectomy can be avoided in primary surgical treatment. Positive peritoneal cytology, stage, and menopausal status were independent prognostic predictors of DFS.