Browsing by Author "Yavuz, A."

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Assessement of the Complications of Ultrasound and Fluoroscopy-Guided Placement of Totally Implantable Venous Access Ports
(Yuzuncu Yil Universitesi Tip Fakultesi, 2019) Özkaçmaz, S.; Alpaslan, M.; Dadalı, Y.; Yavuz, A.
Totally implantable venous access systems are widely used in oncology; however, their complications are extremely common which, sometimes, require device removal, thereby, leading to delayed chemotherapy and infusion therapies. In this study, we aimed to investigate the immediate, early, and late complications of venous port implantation in our oncology patients. A total of 219 consecutive cancer patients (111 males, 108 females; mean age: 56.9 years; range: 1 to 81 years) were retrospectively analyzed between January 2013 and June 2014. A total of 220 ultrasound-and fluoroscopy-guided totally implantable venous port systems were implanted through the right or left internal jugular vein access. The mean follow-up was 83.7 (range: 2 to 410) days. Overall complication rate was 8.6% (19/220). Eight devices in seven patients were removed due to complications. Two ports were removed in one patient. The complications which required port removal were compromised port-related bloodstream infection (n=5), central venous thrombosis (n=3), and catheter thrombosis (n=1). No major complication or no mortality associated with the port implantation was seen during follow-up. Totally seven immediate complications including local hematoma (n=2), catheter tip retraction (n=2), pain (n=1), catheter loop formation (n=1), catheter malposition (n=1), two early complications (n=2; 1 wound dehiscence, and 1 wound infection), and 10 late complications including catheter-related blood stream infection (n=5), central venous thrombosis (n=3), catheter thrombosis (n=1), and tunnel hematoma (n=1) occurred. Low incidence of complications suggest ultrasound-and fluoroscopy-guided venous port implantation is a safe and reliable method for long-term venous access © 2019, Yuzuncu Yil Universitesi Tip Fakultesi. All Rights Reserved.
Common Coeliacomesenteric Trunk: a Computed Tomography Radiological Study
(Via Medica, 2018) Ozgokce, M.; Ayyildiz, V. A.; Ogul, H.; Arslan, H.; Batur, A.; Yavuz, A.; Yuce, D.
Background: There is an increasing trend for administration of invasive radiological interventions, laparoscopic surgery, and transplantation procedures in recent years, and determining the vascular variations prior to these procedures is crucially important. Coeliacomesenteric trunk (CMT) is among these variations. This study aimed to retrospectively evaluate this rare anomaly by computed tomography (CT). Materials and methods: A total of 1000 CT angiography images were analysed retrospectively, and the patients with mesenteric and coeliac arteries arising from the abdominal aorta with a single root were identified. The level that CMT arose, and its branching patterns were determined individually for all patients. Results: Ten patients (6 males and 4 females) with a mean age of 50.2 years (17-87 years) had CMT in CT images. Conclusions: The knowledge of variations in the CMT prior to vascular or laparoscopic interventions will contribute to early intervention in case of a complication, or to avoid from a potential damage.
Comparative Evaluation of Ceftriaxone- and Cefotaxime-Induced Biliary Pseudolithiasis or Nephrolithiasis: a Prospective Study in 154 Children
(Sage Publications Ltd, 2017) Ustyol, L.; Bulut, M. D.; Agengin, K.; Bala, K. A.; Yavuz, A.; Bora, A.; Dogan, M.
Background: Biliary lithiasis, or sludge, and nephrolithiasis have been reported as a possible complication of ceftriaxone therapy. However, no study related to cefotaxime-induced biliary pseudolithiasis or nephrolithiasis was observed in the literature. Therefore, we investigated the comparative formation of biliary pseudolithiasis and nephrolithiasis after cefotaxime and ceftriaxone therapies. Methods: The patients treated with ceftriaxone or cefotaxime were enrolled during the study period. Ultrasound imaging of the biliary and urinary tract was performed in all patients before and after the treatment. The patients with a positive sonographic finding at the end of treatment were followed up with monthly ultrasonography for 3 months. Results: The present study showed that abnormal biliary sonographic findings were demonstrated in 18 children (20.9%) treated with ceftriaxone, 13 (15.1%) had biliary lithiasis, 5 (5.8%) had biliary sludge and 1 (1.2%) had nephrolithiasis. Abnormal biliary sonographic findings were demonstrated in only four (5.9%) children treated with cefotaxime who had biliary sludge and only one (1.5%) had nephrolithiasis. It was observed that older age was at significantly higher risk of developing biliary sludge or stone formation. Receiver operating characteristic analysis was performed to determine the residual risk and analysis found that 4.5 years was the cut-off value for age. Conclusions: The present study is unique in the literature for reporting for the first time gall bladder sludge and nephrolithiasis associated with cefotaxime use. Therefore, patients treated with cefotaxime should be monitored for serious complications like patients treated with ceftriaxone. Nevertheless, if third-generation cephalosporin is used, cefotaxime is recommended to be used rather than ceftriaxone.
Computed Tomography: Are We Aware of Radiation Risks in Computed Tomography
(Yuzuncu Yil Universitesi Tip Fakultesi, 2014) Bora, A.; Açıkgöz, G.; Yavuz, A.; Bulut, M.D.
People are constantly exposed to varying radiation and almost all of this exposure is due to diagnostic procedures. Although radiation has been proven to have adverse biological effects on living organisms, radiological examinations have an indispensable role in the diagnosis. Particularly, Computed Tomography (CT) is valuable imaging tool and plays an important role in the evaluation of many diseases. Radiation doses from CT scans ought to be kept to the ALARA (as low as reasonably achievable) and it shouldn’t be forget that procedures are important in patient safety during imaging in the diagnostic radiology departments. The purpose of this review article is to support that no radiation doses can be considered completely safe and all efforts must be made to reduce both the radiation dose and damage. © 2014, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Concurrence of Prenatally Diagnosed Cantrell Pentalogy and Short and Tight Umbilical Cord: a Possible Case of Hexalogy
(Yuzuncu Yil Universitesi Tip Fakultesi, 2016) Batur, A.; Goya, C.; Yavuz, A.; Hamidi, C.; Cetincakmak, M.G.
Cantrell pentalogy is a rather rare syndrome characterised by complete or partial ectopia cordis; together with omphalocele, congenital heart diseases, and defects in the pericardium, lower sternum and anterior diaphragm. In this article, our aim is to present the ultrasonographic evidence of the concurrence of a short umbilical cord and the Cantrell syndrome, which we believe will contribute to the literature. © 2016 Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Contribution of Sonoelastography in the Differentiation of Benign and Malignant Breast Masses: a Comparative Analysis on Sonographic Birads Classification
(Yuzuncu Yil Universitesi Tip Fakultesi, 2017) Arslan, H.; Akdemir, Z.; Yavuz, A.; İslamoglu, N.; Çelik, S.; Özgökçe, M.; Tolunay, H.E.
In this study, we aimed to investigate the effectivity of ultrasonographic elastography in the differentiation of benign and malignant lesions detected on B-mode ultrasonography. The retrospective study included 133 consecutive patients who underwent B-mode USG followed by elastography between January 2013 and December 2015. The lesions were scored by using B-mode USG with breast imaging-report and data systems (BIRADS) and then sonoelastographic color-coded maps were obtained by elastography in a single session. Sonoelastographic scoring was achieved with a 5-point scoring system. Elasticity scores and strain ratio (SR) values were compared with histopathological findings. The 133 patients included 132 (99.2%) women and 1 (0.8%) man. Mean age was 40.45±14.8 years. The lesions were mostly localized in the left breast (n=70, 52.3% vs. n=63, 47.7%). Depending on the pathological findings, 94 (71.2%) lesions were classified as benign and 39 (28.8%) as malignant. Mean SR value was 4.419±1.43, with 5.5 in malignant lesions and 4.3 in benign lesions. At the cut-off value of 4.95 for SR, the sensitivity and specificity of USG in elastographic examination were 81.6% and 78.7%, respectively. A significant correlation was found between the SR value and the BIRADS score calculated on USG (rho=0.86; two-tailed; p<0.001). Similarly, a significant correlation was found between the SR value and the elasticity score (rho=0.88; two-tailed; p<0.001). In conclusion, the use of sonoelastographic examination following the USG examination with B-mode ultrasonography can be a complementary diagnostic method that increases the specificity of USG. Moreover, it can also reduce unnecessary biopsies in lesions with suspicious malignancy. © 2018, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Diffusion-Weighted Mri in the Diagnosis of Intracranial Hematomas
(2013) Şanli, D.; Ünal, O.; Bora, A.; Beyazal, M.; Yavuz, A.; Avcu, S.
To determinate the diagnostic value of diffusion-weighted MR imaging (DWI) in intracerebral hematomas, epidural hematomas, subdural hematomas, and subarachnoid hemorrhage, and to assess the contribution of diffusion signal characteristics in the differentiation of hematoma stages. In this prospective study, consecutive 67 patients (range: 3-89 years), 35 (18 men 17 women) with intracerebral hematoma, 18 (10 men 8 women) with subdural hematoma, 2 (1 man 1 woman) with epidural hematoma, and 12 (5 men 7 women) with subarachnoid hemorrhage on conventional MRI sequences constituted the case group and were evaluated with DWI. Intracerebral, subdural and epidural hematomas detected on conventional MR sequences were also shown on DWI. But none of the cases with subarachnoid hemorrhage was demonstrated on DWI. All intracranial hematomas detected on DWI except from chronic stage subdural hematomas showed similar signal intensity characteristics on DWI and T2WI, but were hypointense on ADC maps. All intracerebral, subdural and epidural hematomas seen on conventional MR sequences could be detected by DWI. On the contrary, DWI was not an effective imaging method for detecting subarachnoid hemorrhages. Using DWI alone for detecting the stages of hemorrhages can provide only additional information in subdural and intracerebral hematomas, and it is unable to give definite results, and the lesions should be evaluated by the correlation with other conventional MRI sequences.
Endovenous Laser Ablation Treatment With 980 Nm Diode Laser for Saphenous Vein Insufficiency: 6 Months Follow Up Results
(Assoc Royal Soc Scientifiques Medicales Belges, 2014) Beyazal, M.; Avcu, S.; Ozen, O.; Yavuz, A.; Bora, A.; Unal, O.
Objective: Superficial venous insufficiency is a common problem associated with varicose veins which, if untreated, may progress to venous ulceration. Endovenous laser ablation (EVLA) is a new, minimally invasive method for management of superficial venous insufficiency and varicose veins. The aim of this study was to demonstrate the effectiveness of 980 nm EVLA for treatment of symptomatic saphenous venous insufficiency and to present its early outcomes. Methods: Thirty-eight great saphenous veins and 5 small saphenous veins in 40 patients with saphenofemoral reflux were treated with 980 nm diode endovenous laser equipment. The diameter and length of the vein treated, total laser energy and energy density (Joules/cm) delivered were recorded. To determine the severity of the venous disease Venous Clinical Severity Score (VCSS) and Visual Analogue Scale (VAS) were used. Patients were followed up for 6 months after the procedure. Complications were recorded prospectively. Results: Forty-three saphenous veins in 40 patients were treated. The mean age of the patients was 39.9 (range 2172) years. The mean diameter and length of the veins were 4.9 mm (range, 3.5 to 8.5 mm) and 30.2 cm (range, 16 to 50 cm), respectively. At 6 months follow-up, total occlusion rate was 95.4% (41/43), and recanalization rate was 4.6%. Significant decrease was observed for VCSS and VAS scores after the procedure. No major complication was detected. Conclusion: EVLA treatment for superficial venous insufficiency is safe and can be carried out under local anaesthesia in an outpatient setting with good patient satisfaction and low complication rates.
How Appropriate Are the Lengths of Syringe Needles Used for Subcutaneous Injections To the Children at School Age
(Univ West indies Faculty Medical Sciences, 2021) Kaba, S.; Dogan, M.; Bulan, K.; Yavuz, A.; Bora, A.; Didin, M.; Kocaman, S.
Objectives: To define the normal ranges of the thicknesses of the skin and subcutaneous tissues via ultrasonography, and determine whether the current syringe needle-lengths used for the subcutaneous injections were appropriate. Methods: The thicknesses of the skin and subcutaneous tissues of 2244 students were measured at the left arm using ultrasonography. The patients were divided into three groups based on their age: 6-8, 9-12 and 13-17 years. Results: The thicknesses of the skin, subcutaneous tissue and skin-subcutaneous tissue were found to be positively correlated with their age, body mass index (BMI) and body surface area. All these were observed to be gender related. There was the possibility to make intramuscular injections for 50%, 25% and 25% of boys within the age groups of 6-8, 9-12 and 13-17 years, respectively. For girls, the risk of intramuscular injection was 25% for all the age groups. Conclusion: The study showed that the skin and skin-subcutaneous tissue thicknesses varied as a function of the patients' age, gender, BMIs and body surface areas.
An Interesting Coexistence of Patau Syndrome; Spigelian Hernia and Undescended Testes
(Medecine Et Hygiene, 2014) Demir, N.; Tuncer, O.; Peker, E.; Bilici, S.; Yavuz, A.
Magnetic Resonance Imaging Findings in Cerebral Venous Thrombosis Due To Behcet's Disease and the Importance of Susceptibility-Weighted Imaging: Case Report
(Turkish Society of Cerebrovascular Diseases, 2015) Bulut, M.D.; Yavuz, A.; Milanlioglu, A.; Bora, A.; Gülsen, I.
Cerebral venous thrombosis (CVT) is an uncommon disorder that can lead to an unfavorable prognosis and even be fatal in some cases. CVT is seen mainly in females, especially those between the ages of 20 and 35 years. The disorder has many etiologic factors. This report presents the case of a 34-year-old male patient with Behçet's disease admitted with complaints of headache and vomiting. The major venous vascular structures that were visible in cranial magnetic resonance imaging (MRI) and MR venography were found to be filled with thrombosis. The patient's susceptibilityweighted imaging (SWI) revealed marked hypointensities consistent with thrombosis in the transverse sinus, sigmoid sinus, and in the venous vascular structures of the posterior fossa. Thus, it was found that cerebral venous thrombosis due to Behçet disease could clearly be determined by the SWI sequence; in addition, thrombosis by the venous vascularity in veins of the posterior fossa were more visible than via the other MR sequences. The conclusion was made that SWI can promptly demonstrate cerebral venous thrombosis, contribute to the diagnosis, and provide useful additional information.
Pulmonary Langerhans Cell Histiocytosis: Two Cases With Varied Radiologic Findings
(Yuzuncu Yil Universitesi Tip Fakultesi, 2016) Gunbatar, H.; Yavuz, A.; Sertogullarindan, B.; Ekin, S.; Asker, S.; Sayır, F.; Bayram, I.
Pulmonary Langerhans Cell Histiocytosis (PLCH) is an idiopathic interstitial lung disease with Langerhans cell infiltration in the lung. PLCH X has non-spesific symptoms, and most patients have smoking history. A combination of stellate nodules, reticular and nodular opacities, upper zone cysts or honeycombing, preservation of lung volume and costophrenic angle sparing are highly specific for PLCH. To contribute to the literature, two cases are presented. First case is 30 years old man with 10 pack/years smoking history was admitted with cough and persevering interstitial opacities. Second case is 34 years old man with 15 pack/years smoking history was admitted with persistant cough. On thorax CT the first case had reticulonodular opacities at the perifery of the upper and middle zones, second case had multiple parenchymal cystic nodular lesions. Open lung biopsy performed, immunohistochemical examination CD1a, CD68, S100 detecting antigenpositive and histologically and radiologically confirmed diagnosed of PLCH. © 2016, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Retroperitoneal Castleman Disease With Paravertebral Localization Mimicking Nephrolithiasis: a Rare Case
(Yuzuncu Yil Universitesi Tip Fakultesi, 2014) Kaba, M.; Pirinççi, N.; Yavuz, A.; Bora, A.; Soyoral, L.; Bulut, G.
Castleman’s Disease (CD), is a rare condition of uncertain etiology, involves a massive proliferation of lymphoid tissues and typically presents as mediastinal masses. In general, CD is an incidentally diagnosed disease with an asymptomatic course in most cases. We aimed to present a 48-year old woman who presented with left flank pain and had calcifications at the localization of left kidney on abdomen x-ray. The retroperitoneal mass with paravertebral localization was evaluated, because the size of mass in our case was larger than traditional sizes seen in Castleman Disease and calcifications and localization of the mass on KUB x-ray can mimic renal stone disease. © 2014, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Solitary Melanoma of the Central Nervous System: Case Report
(Lippincott Williams and Wilkins, 2015) Beyazal, M.; Yavuz, A.; Kiymaz, N.; Yilmaz, D.
Primary melanoma of the central nervous system (CNS) is a rare entity, thus the diagnostic and therapeutic experience is based on a limited number of published cases. The diagnostic dilemma of solitary CNS melanoma is whether it is primary. Primary CNS malignant melanoma has more favorable prognosis than metastatic disease according to the published reports in the literature. Primary melanoma of the CNS may occur as intra-axial or extra-axial mass lesions or may be presented as meningeal spread. We describe the clinical features of 23-year-old male patient with solitary cerebral melanoma, including magnetic resonance imaging and histopathologic findings in light of literature. © 2013 Wolters Kluwer Health, Inc.
Three-Dimensional Investigation by Computed Tomography of the Skeleton Manus in Van Cats
(Ataturk Universitesi, 2020) Yilmaz, O.; Soyguder, Z.; Yavuz, A.
This study aimed to obtain the three-dimensional (3D) reconstruction by computed tomography (CT) and the osteometric measurements of the skeleton manus (ossa carpi, ossa metacarpalia I-V ve ossa digitorum manus) in adults Van cats, and to determine the biometric differences between these measurement values in male and female cats. In the study, 16 adult Van cats (8 females, 8 males) were used. The cats that were anesthetized with the xylazine-ketamine combination were scanned by CT device, and images of skeleton manus were obtained. These axial images were transferred to the workstation for processing in DICOM format and then reconstruction was performed using Syngo CT, a 3D reconstruction program. The bones in three-dimensional reconstruction images were evaluated for their anatomical features. Volumetric and morphometric measurement values were obtained from these images and statistical analyzes were done. In the results of morphometric analyses, statistically significant differences (P<0.05) were seen between measured values of the carpal bones, metacarpal I-V bones and phalanges of the digits in male and female Van cats. The volumetric measurement values of the carpal bones, metacarpal I-V bones and phalanges of the digits were statistically significantly greater in male cats than in female cats (P<0.05). In conclusion, the carpal bones, metacarpal I-V bones and phalanges of the digits were evaluated volumetric, morphometric, and morphologically in Van cats. The biometric differences between the osteometric measurement values of these bones in both sexes were examined statistically. © 2020 Ataturk Universitesi. All rights reserved.
Ultrasound-Guided Percutaneous Treatment of Abscess Foci in Different Localizations of the Body: Results of Three Year-Experience
(Yuzuncu Yil Universitesi Tip Fakultesi, 2015) Bulut, M.D.; Yavuz, A.; Bora, A.; Batur, A.; Beyazal, M.; Avcu, S.
In this study, we evaluated abscess foci which are found in different localizations of the body, diagnosed with US, CT and MRI and performed US-guided percutaneus drainage. We evaluated the effectiveness of treatment, etiologic factors, organs and localizations of abscess in the cases who underwent drainage. A total of 63 patients diagnosed with abscess in different tissues and organs, had US-guided percutaneous drainage performed (34 male, 29 female aged between 1-75 years), and 68 abscess foci were analysed. Abscess size varied between 2.5-21 cm and the mean diameter was detected as 8 cm. Diagnosis of abscess was made with US in 45 cases, CT in 23 cases and MRI in 6 cases. While 48 out of 68 abscess foci were simple, 20 were multilocular and contained septations. Air was observed in 19 of all abscess foci. Clinical findings of abscess completely resolved in 60 out of 63 patients who underwent abscess drainage (95.2%). In 3 abscess, the abscess cavity did not shrink as desired due to multiloculation, dense content, adhesions and fistulization. A drainage catheter had also been inserted, so a decision of surgical therapy was made. Secondary drainage was applied due to recurrence in 2 patients. Thirty two abscess foci (47%) developed postoperatively. Complications were not observed in any of the cases. The duration of catheter was calculated as 5-23 days (mean 10.5 days). US-guided percutaneous drainage should be the primarily preferred method in treatment of abscess and collections as it is easily applicable, does not require general anesthesia, is well tolerated, and has high success and low complication rates. © 2015, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Us and Ct Findings of Hibernoma in an Unusual Location
(2013) Yavuz, A.; Bora, A.; Beyazal, M.; Göya, C.
Hibernomas are asymptomatic, slow-growing tumors occurring in the anatomical sites where of brown fatty tissue was found in fetal life such as inter-scapular region or thigh. Retroperitoneal localization is an unusual site for this tumor and only few cases have been published in the literature. These tumors are benign in nature without any recurrence after total excision or evidence of metastasis. The purpose of this presentation is to demonstrate the US and CT findings of retroperitoneal hibernoma with the review of the literature.
Utility of Computed Tomography in Assessment of Pulmonary Hypertension Secondary To Biomass Smoke Exposure
(International Scientific Literature Inc., 2014) Sertogullarindan, B.; Bora, A.; Yavuz, A.; Ekin, S.; Gunbatar, H.; Arisoy, A.; Ozbay, B.
Background: The aim of this study was to investigate the feasibility of main pulmonary artery diameter quantification by thoracic computerized tomography (CT) in the diagnosis of pulmonary hypertension seconder to biomass smoke exposure. Material/Methods: One hundred and four women subjects with biomass smoke exposure and 20 healthy women subjects were enrolled in the prospective study. The correlation between echocardiographic estimation of systolic pulmonary artery pressure and the main pulmonary artery diameter of the cases were studied. Results: The main pulmonary artery diameter was 26.9±5.1 in the control subjects and 37.1±6.4 in subjects with biomass smoke exposure. This difference was statistically significant (p<0.001). The systolic pulmonary artery pressure was 22.7±12.4 in the control subjects and 57.3±22 in subjects with biomass smoke exposure. This difference was statistically significant (p<0.001). Systolic pulmonary artery pressure was significantly correlated with the main pulmonary artery diameter (r=0.614, p<0.01). A receiver operating characteristic (ROC) curve analysis showed that a value of 29 mm of the main pulmonary artery diameter differentiated between pulmonary hypertension and non-pulmonary hypertension patients. The sensitivity of the measurement to diagnose pulmonary hypertension was 91% and specificity was 80%. Conclusions: Our results indicate that main pulmonary artery diameter measurements by SCT may suggest presence of pulmonary hypertension in biomass smoke exposed women. © Med Sci Monit.