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Öğe Acute Mesenteric Ischemia: The Diagnostic Value of QT Parameters and their Relationship with CT Findings(Bentham Science Publ Ltd, 2024) Alan, Bircan; Alan, Sait; Gurel, Safiye; Inanir, Mehmet; Acar, Emrah; Donmez, Ibrahim; Kalaycioglu, OyaBackground: One of the greatest challenges in the diagnosis of acute mesenteric ischemia (AMI) is the lack of specific laboratory tests that support multidetector computed tomography (CT). Our aim is to investigate the diagnostic value of electrocardiographic QT parameters in AMI and their relationship with CT findings. Materials and Methods: Patients who were admitted to the emergency department with abdominal pain were recruited retrospectively from the hospital information system. Grouping was carried out on the basis of AMI (n=78) and non-AMI (n=78). In both groups, the corrected QT (QTc) and QT dispersion (QTD) were measured on electrocardiographs, and the qualitative and quantitative CT findings were evaluated on CT examinations. Results: The QTc and QTD values were higher in the AMI group. The median QTc values were 456.16 (IQR: 422.88-483.16) for the AMI group and 388.83 (IQR: 359.74-415.83) for the control group (p<0.001), and the median QTD values were 58 (IQR: 50.3-68.25) for the AMI group and 46 (IQR: 42-50) for the control group (p<0.001). In the CT analysis, the QTc values were significantly higher among AMI patients, with images of paper-thin bowel walls and the absence of bowel wall enhancement (p=0.042 and p=0.042, respectively). Meanwhile, the QTD values were significantly higher among patients with venous pneumatosis findings on CT (p=0.005). In the regression analysis, a significant relationship was found between the QT parameters and AMI (p<0.001). For QTc, an AUC of 0.903 (95% CI: 0.857-0.950, p<0.001), a sensitivity of 80.8%, and a specificity of 82.3% were found. For QTD, an AUC of 0.821 (95% CI: 0.753-0.889, p<0.001), a sensitivity of 73.1%, and a specificity of 82.3% were found. Conclusion: We found the QTc and QTD values to be significantly higher among AMI patients. Furthermore, we found a significant relationship between the CT findings and QTc and QTD and a significant relationship between survival and QTc in the AMI group.Öğe Can coracoacromial ligament degeneration be evaluated with preoperative MRI?(Sage Publications Ltd, 2024) Ozdemir, Faruk; Ayanoglu, Tacettin; Dagistan, Emine; Kalaycioglu, Oya; Celik, Ilhan; Kalfaoglu, Melike Elif; Kanatli, UlunayBackground Subacromial impingement syndrome is one of the most common causes of painful shoulder in the middle-aged and elderly population. Coracoacromial ligament (CAL) degeneration is a well-known indicator for subacromial impingement. Purpose To examine the relationship between CAL thickness on preoperative magnetic resonance imaging (MRI), arthroscopic CAL degeneration and types of rotator cuff tears. Material and Methods Video records of patients who underwent arthroscopic shoulder surgery between 2015 and 2021 were retrospectively scanned through the hospital information record system. In total, 560 patients were included in this study. Video records of the surgery were used to evaluate the grade of coracoacromial ligament degeneration and the type of cuff tear. Preoperative MRI was used to measure CAL thickness, acromiohumeral distance, critical shoulder angle, acromial index, and acromion angulation. Results Significant differences were observed between grades of CAL degeneration in terms of CAL thickness (P < 0.001). As CAL degeneration increases, the mean of CAL thickness decreases. According to the results of post-hoc analysis, the mean CAL thickness of normal patients was significantly higher than those of patients with full-thickness tears (P = 0.024) and massive tears (P <0.001). Patients with articular-side, bursal-side, and full-thickness tears had significantly higher CAL thickness averages than patients with massive tears. Conclusion This study showed that the CAL thickness decreases on MRI as arthroscopic CAL degeneration increases. High-grade CAL degeneration and therefore subacromial impingement syndrome can be predicted by looking at the CAL thickness in MRI, which is a non-invasive method.Öğe Effect of the presence of cysts in the hip joint on hip arthroscopy(Turkish Joint Diseases Foundation, 2024) Ciceklidag, Murat; Ayanoglu, Tacettin; Kaptan, Ahmet Yigit; Vural, Abdurrahman; Kalaycioglu, Oya; Ozer, Mustafa; Kanatli, UlunayObjectives: The aim of this study was to investigate whether the presence and size of fibrous cysts affected postoperative results in patients undergoing hip arthroscopy. Patients and methods: Between January 2010 and December 2019, a total of 261 patients (138 males, 123 females; mean age: 39.5 +/- 11.9 years; range, 18 to 66 years) who underwent hip arthroscopy with the diagnosis of cam-pincer-mixed-type femoroacetabular impingement (FAI) and labral pathologies were retrospectively analyzed. The study groups (impingements and labral pathologies) and the presence of cyst (or cyst size: <5 mm, 5-8 mm, >8 mm) were used as the fixed effects, and the analysis was adjusted for baseline age, sex, and preoperative scores. Pre- and postoperative modified Harris Hip Score (mHHS) and Visual Analog Scale (VAS) scores that were applied to all patients were used as an indication of clinical results. Results: The mean preoperative mHHS score of the patients with a cyst was significantly lower compared to the patients without a cyst (56.8 +/- 12.3 vs. 60.3 +/- 12.7, p=0.026). The mean change in the mHHS score and the mean percentage change in VAS score were significantly higher in the patients with a cyst compared to the patients without a cyst (mHHS score: 28.1 +/- 14.0 vs. 22.5 +/- 14.1, p=0.002; VAS score: 61.9 +/- 30.2 vs. 52.6 +/- 47.4, p=0.038). The increase in mHHS score over time for patients with a cyst was significantly higher than the patients without cysts in the pincer group (38.1 +/- 11.1 vs. 19.3 +/- 13.5, p<0.001). The patients with a cyst size of >8 mm had a significantly higher increase in the mHHS scores compared to the patients with a cyst size of <5 mm (29.5 +/- 12.9 vs. 23.5 +/- 13.8, p=0.043). Conclusion: Subchondral cysts in the femoral head and neck junction accompanied cam-type and mixed-type FAI, while subchondral cysts in the acetabulum accompanied pincer-type impingement. In all groups, the mean increase in mHHS scores and the mean decrease in VAS scores were higher in patients with subchondral cysts than in patients without cysts. In patients with subchondral cysts, if the lesion causing FAI is treated arthroscopically, it can positively affect the functional results.Öğe Guidance for research on the COVID-19 disease in times of pandemic(SIPISS- Edizioni FS Publishers, 2020) Kalaycioglu, OyaThis study is aimed at examining the manner of use of internet and phone surveys and making suggestions related to sample selection strategies during the COVID-19 outbreak. As the influence of the COVID-19 pandemic spreads worldwide, many researchers are engaged in telephone and internet surveys to assess the socioeconomic impacts of the outbreak of the disease and the emerging needs of societies during this pe-riod. However, the data collection methods requiring access to technology and the ability to use it may lead to under-representativeness of socioeconomically deprived groups. In emergency situations, although this can be a legitimate limitation, it should be reported by the researchers and optimal effort should be made to increase representativeness. In order to ensure that the population is adequately represented with a sample, the choice of survey mode and sampling strategy should be determined based on the research objectives, socio-demographic characteristics of the target population and the available resources. However, most survey research being conducted during the outbreak of COVID-19 disease lack proper justification of the sampling strategy used and neglect to address the limitations due to under-represented communities. This may consequently result in misleading and overgeneralized findings. Therefore, guidance to researchers con-cerning appropriate survey methods and sample selection strategies that could be used in surveys during the COVID-19 pandemic are needed. The comparison of advantages and disadvantages of different survey strategies presented in this study are expected to contribute to the methodological literature in data collection. © 2020 Oya Kalaycioglu Edizioni FS Publishers.
