1.Correlation of shear wave elastography with histopathological grade, tumor stage, and microvessel density in bladder cancer
Gokhan SAHIN ; Hakan GEMALMAZ ; Mustafa GOK
Investigative and Clinical Urology 2025;66(3):207-214
Purpose:
To evaluate the pathological correlation and prognostic significance of tissue stiffness measured by shear wave elastography (SWE) in bladder cancer.
Materials and Methods:
Patients with microscopic or macroscopic hematuria diagnosed with bladder tumors were included. SWE measurements were performed using a Samsung Medison RS80A Prestige ultrasonography device, with ten valid measurements taken for each tumor. Tumor specimens were collected via transurethral resection (transurethral resection of the bladder tumor) for histopathological analysis. Microvessel density (MVD) was assessed by immunohistochemical staining with anti-CD34 antibody using the hot-spot method. Correlations between tissue stiffness, MVD and tumor stage and grade were analyzed, and receiver operating characteristic (ROC) analysis determined the optimal SWE cutoff for differentiating tumor characteristics.
Results:
A total of 65 bladder urothelial carcinoma patients were included in the study (43 high-grade, 22 low-grade). SWE and MVD were significantly higher in the high-grade group (p=0.001, p=0.002, respectively). ROC analysis showed SWE could differentiate tumor grades (area under ROC curve=0.837, p<0.001), with a cut-off of 4.25 kPa (74% sensitivity, 86% specificity). Stiffness was also higher in recurrence (p=0.007). A strong positive correlation between SWE and MVD was found (rho=0.767, p<0.001).SWE may be a reliable, non-invasive tool for assessing tumor grade and recurrence risk.
Conclusions
SWE may be a reliable, non-invasive preoperative marker for bladder cancer, aiding in tumor characterization and clinical decision-making.
2.Is Every Thyroid Antibody a Bad Sign?: The Complex Relationship of Antithyroid Antibodies and Obsessive-compulsive Symptoms
Ali CAYKOYLU ; Mustafa UGURLU ; Esra Kabadayi SAHIN ; Selcuk AKAN ; Gorkem Karakas UGURLU ; Ezgi Cisil ERDOGAN ; Emine Ulku ALKAN
Clinical Psychopharmacology and Neuroscience 2024;22(1):45-52
Objective:
Several immunological factors are emphasized in the etiology of autoimmune thyroid diseases and obsessivecompulsive disorder. Obsessive-compulsive symptoms (OCS) are commonly seen in patients with autoimmune thyroid diseases. This study aims to evaluate the relationship between OCS and antithyroid antibodies.
Methods:
The study included 145 patients with Hashimoto thyroiditis or Graves’ disease and 42 healthy controls. Thyroid function tests and serum thyroid autobody levels (anti-thyroglobulin [TG], anti-thyroid peroxidase [TPO], and anti-thyroid stimulating hormone [TSH]) of the patients were measured. The socio-demographic data and OCS of the participants were evaluated with Dimensional OCS (DOCS).
Results:
DOCS scores were higher in patients than in the control group. There was not found a significant relationship between free T3, free T4, and TSH levels and DOCS scores. Anti-TG positivity in females was associated with lower DOCS scores. Anti-TPO positivity in males had a positive correlation with DOCS scores. There was no correlation between sex and the presence of anti-TSH in terms of OCS severity. Univariate analysis found the highest OCS scores in anti-TPO positive, anti-TG, and anti-TSH negative patients. The group with the lowest OCS scores was found to be anti-TG positive, anti-TPO, and anti-TSH negative patients.
Conclusion
OCS severity could be affected by different thyroid autoantibody profiles in patients with autoimmune thyroid diseases. While anti-TG serves a protective role against OCS in females, the presence of anti-TPO may worsen the OCS in men. Additionally, the co-existence of different antithyroid antibodies may affect the severity of OCS differently according to sex.
3.An experimental investigation of the effects of chronic stress on bone-to-implant contact
Serkan DUNDAR ; Alihan BOZOGLAN ; Ferhan YAMAN ; Mustafa KIRTAY ; Ozgur BULMUS ; Hacer SAHIN AYDINYURT ; Murat Yavuz SOLMAZ ; Cenk YANEN
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2019;45(2):91-96
OBJECTIVES: This study aimed to investigate the effects of chronic restraint stress on the osseointegration of titanium implants. MATERIALS AND METHODS: Twenty adult male Wistar albino rats were used in the study. After surgical insertion of titanium implants into the metaphyseal part of the tibial bone, rats were randomly divided into two groups: a control group (CNT group) and an experimental restraint stress group (RS group). In the CNT group, titanium implants were inserted surgically, and rats received no further treatment during the 47-day experimental period. In the RS group, restraint stress was applied for 3 hours per day for 45 days, beginning 2 days after implant surgery. Weight of the rats was measured prior to surgery and at the end of the study to analyze the effects of stress. At the end of the experimental period, rats were euthanized, and implants and surrounding bone tissues were used for undecalcified histological analysis. Serum cortisol levels were assessed in cardiac blood samples from the rats following centrifugation. RESULTS: Average weight of rats in the RS group was lower than that of rats in the CNT group after the experimental protocol had been completed (P<0.05). Further, serum cortisol levels were higher in the RS group than in the CNT group (P<0.05). There were no significant differences in bone-implant connection levels between the two groups (P>0.05). CONCLUSION: The data analyzed in this study suggest that chronic restraint stress did not adversely affect rats during a 45-day osseointegration period.
Adult
;
Animals
;
Bone and Bones
;
Centrifugation
;
Humans
;
Hydrocortisone
;
Male
;
Osseointegration
;
Rats
;
Tibia
;
Titanium
4.An experimental investigation of the effects of chronic stress on bone-to-implant contact
Serkan DUNDAR ; Alihan BOZOGLAN ; Ferhan YAMAN ; Mustafa KIRTAY ; Ozgur BULMUS ; Hacer SAHIN AYDINYURT ; Murat Yavuz SOLMAZ ; Cenk YANEN
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2019;45(2):91-96
OBJECTIVES:
This study aimed to investigate the effects of chronic restraint stress on the osseointegration of titanium implants.
MATERIALS AND METHODS:
Twenty adult male Wistar albino rats were used in the study. After surgical insertion of titanium implants into the metaphyseal part of the tibial bone, rats were randomly divided into two groups: a control group (CNT group) and an experimental restraint stress group (RS group). In the CNT group, titanium implants were inserted surgically, and rats received no further treatment during the 47-day experimental period. In the RS group, restraint stress was applied for 3 hours per day for 45 days, beginning 2 days after implant surgery. Weight of the rats was measured prior to surgery and at the end of the study to analyze the effects of stress. At the end of the experimental period, rats were euthanized, and implants and surrounding bone tissues were used for undecalcified histological analysis. Serum cortisol levels were assessed in cardiac blood samples from the rats following centrifugation.
RESULTS:
Average weight of rats in the RS group was lower than that of rats in the CNT group after the experimental protocol had been completed (P<0.05). Further, serum cortisol levels were higher in the RS group than in the CNT group (P<0.05). There were no significant differences in bone-implant connection levels between the two groups (P>0.05).
CONCLUSION
The data analyzed in this study suggest that chronic restraint stress did not adversely affect rats during a 45-day osseointegration period.
5.Electromyography-Guided Botulinum Toxin Injection Into the Cricothyroid Muscles in Bilateral Vocal Fold Abductor Paralysis.
Mustafa SAHIN ; Ibrahim AYDOGDU ; Serdar AKYILDIZ ; Munevver ERDINC ; Kerem OZTURK ; Fatih OGUT
Clinical and Experimental Otorhinolaryngology 2017;10(2):193-202
OBJECTIVES: Bilateral vocal fold abductor paralysis (BVFAP) both deteriorates quality of life and may cause life-threatening respiratory problems. The aim of this study was to reduce respiratory symptoms in BVFAP patients using cricothyroid (CT) botulinum toxin (BTX) injection. METHODS: Before and 2 weeks and 4 months after bilateral BTX injection into the CT muscles under electromyography; alterations in respiratory, acoustic, aerodynamic and quality of life parameters were evaluated in BVFAP patients with respiratory distress. For the respiratory evaluation modified Borg scale and spirometry, for the voice and aerodynamic evaluations Voice Handicap Index-30 (VHI-30), GRBAS, acoustic analysis (sound pressure level, F0, jitter%, shimmer%, noise-to-harmonic ratio) and maximum phonation time and for the quality of life assessment Short Form-36 (SF-36) form were used. RESULTS: All patients were female with a mean age of 47±8.1 years. There was a mean time of 11.8±5.5 (minimum 2, maximum 23) months between BVFAP development and BTX injection. In all cases, other than one case with unknown aetiology, the cause of vocal fold paralysis was prior thyroid surgery. In total 18.6±3.1 units of BTX were applied to the CTs. In the preinjection period, and the 2nd week and 4th month after injection, the Borg dyspnea scale was 7.3/5.3/5.0, FIV1 (forced inspiratory volume in one second) was 1.7/1.7/1.8 L, peak expiratory flow (PEF) was 1.4/1.7/2.1 L/sec, maximum phonation time was 7.0/6.4/6.2 seconds and VHI-30 was 63.2/52.2/61.7 respectively. There was no significant alteration in acoustic analysis parameters. Many of the patients reported transient dysphagia within the first week. There were insignificant increases in SF-36 sub-scale values. CONCLUSION: After BTX injection, improvements in the mean Borg score, PEF and FIV1 values and SF-36 sub-scale scores showed the restricted success of this approach. This modality may be kept in mind as a transient treatment option for patients refused persistent tracheotomy or ablative airway surgeries.
Acoustics
;
Botulinum Toxins*
;
Deglutition Disorders
;
Dyspnea
;
Electromyography
;
Female
;
Humans
;
Laryngeal Muscles*
;
Muscles
;
Paralysis*
;
Phonation
;
Quality of Life
;
Spirometry
;
Thyroid Gland
;
Tracheotomy
;
Vocal Cords*
;
Voice
6.Aortic Flow Propagation Velocity in Patients with Familial Mediterranean Fever: an Observational Study.
Kayihan KARAMAN ; Arif ARISOY ; Aysegul ALTUNKAS ; Ertugrul ERKEN ; Ahmet DEMIRTAS ; Mustafa OZTURK ; Metin KARAYAKALI ; Safak SAHIN ; Atac CELIK
Korean Circulation Journal 2017;47(4):483-489
BACKGROUND AND OBJECTIVES: Systemic inflammation has an important role in the initiation of atherosclerosis, which is associated with arterial stiffness (AS). Aortic flow propagation velocity (APV) is a new echocardiographic parameter of aortic stiffness. The relationship between systemic inflammation and AS has not yet been described in patients with familial Mediterranean fever (FMF). We aimed to investigate the early markers of AS in patients with FMF by measuring APV and carotid intima-media thickness (CIMT). SUBJECTS AND METHODS: Sixty-one FMF patients (43 women; mean age 27.3±6.7 years) in an attack-free period and 57 healthy individuals (36 women; mean age 28.8±7.1 years) were included in this study. The individuals with atherosclerotic risk factors were excluded from the study. The flow propagation velocity of the descending aorta and CIMT were measured to assess AS. RESULTS: APV was significantly lower (60.2±16.5 vs. 89.5±11.6 cm/sec, p<0.001) and CIMT was significantly higher (0.49±0.09 vs. 0.40±0.10 mm, p<0.001) in the FMF group compared to the control group. There were significant correlations between APV and mean CIMT (r=-0.424, p<0.001), erythrocyte sedimentation rate (ESR) (r=-0.198, p=0.032), and left ventricle ejection fraction (r=0.201, p=0.029). APV and the ESR were independent predictors of FMF in logistic regression analysis (OR=-0.900, 95% CI=0.865-0.936, p<0.001 and OR=-1.078, 95% CI=1.024-1.135, p=0.004, respectively). Mean CIMT and LVEF were independent factors associated with APV in linear regression analysis (β=-0.423, p<0.001 and β=0.199, p=0.017, respectively). CONCLUSION: We demonstrated that APV was lower in FMF patients and is related to CIMT. According to our results, APV may be an independent predictor of FMF.
Aorta, Thoracic
;
Atherosclerosis
;
Blood Sedimentation
;
Carotid Intima-Media Thickness
;
Echocardiography
;
Familial Mediterranean Fever*
;
Female
;
Heart Ventricles
;
Humans
;
Inflammation
;
Linear Models
;
Logistic Models
;
Observational Study*
;
Risk Factors
;
Vascular Stiffness
7.Comparison of three different risk-stratification models for predicting lymph node involvement in endometrioid endometrial cancer clinically confined to the uterus.
Vakkas KORKMAZ ; Mehmet Mutlu MEYDANLI ; Ibrahim YALÇIN ; Mustafa Erkan SARI ; Hanifi SAHIN ; Eda KOCAMAN ; Ali HABERAL ; Polat DURSUN ; Tayfun GÜNGÖR ; Ali AYHAN
Journal of Gynecologic Oncology 2017;28(6):e78-
OBJECTIVE: To compare the clinical validity of the Gynecologic Oncology Group-99 (GOG-99), the Mayo-modified and the European Society for Medical Oncology (ESMO)-modified criteria for predicting lymph node (LN) involvement in women with endometrioid endometrial cancer (EC) clinically confined to the uterus. METHODS: A total of 625 consecutive women who underwent comprehensive surgical staging for endometrioid EC clinically confined to the uterus were divided into low- and high-risk groups according to the GOG-99, the Mayo-modified, and the ESMO-modified criteria. Lymphovascular space invasion is the cornerstone of risk stratification according to the ESMO-modified criteria. These 3 risk stratification models were compared in terms of predicting LN positivity. RESULTS: Systematic LN dissection was achieved in all patients included in the study. LN involvement was detected in 70 (11.2%) patients. LN involvement was correctly estimated in 51 of 70 LN-positive patients according to the GOG-99 criteria (positive likelihood ratio [LR+], 3.3; negative likelihood ratio [LR−], 0.4), 64 of 70 LN-positive patients according to the ESMO-modified criteria (LR+, 2.5; LR−, 0.13) and 69 of the 70 LN-positive patients according to the Mayo-modified criteria (LR+, 2.2; LR−, 0.03). The area under curve of the Mayo-modified, the GOG-99 and the ESMO-modified criteria was 0.763, 0.753, and 0.780, respectively. CONCLUSION: The ESMO-modified classification seems to be the risk-stratification model that most accurately predicts LN involvement in endometrioid EC clinically confined to the uterus. However, the Mayo-modified classification may be an alternative model to achieve a precise balance between the desire to prevent over-treatment and the ability to diagnose LN involvement.
Area Under Curve
;
Carcinoma, Endometrioid
;
Classification
;
Endometrial Neoplasms*
;
Female
;
Humans
;
Lymph Nodes*
;
Medical Oncology
;
Neoplasm Metastasis
;
Uterus*
8.Neutrophil to Lymphocyte Ratio Predicts Left Ventricular Remodeling in Patients with ST Elevation Myocardial Infarction after Primary Percutaneous Coronary Intervention.
Abdurrezzak BOREKCI ; Mustafa GUR ; Caner TURKOGLU ; Ahmet Oytun BAYKAN ; Taner SEKER ; Durmus Yildiray SAHIN ; Hazar HARBALIOGLU ; Zafer ELBASAN ; Mustafa TOPUZ ; Murat CAYLI
Korean Circulation Journal 2016;46(1):15-22
BACKGROUND AND OBJECTIVES: It has been demonstrated that the neutrophil/lymphocyte ratio (NLR) might be a useful marker to predict cardiovascular risk and events. We aimed to investigate the role of the NLR to predict ventricular remodeling (VR) in patients with anterior ST-elevation myocardial infarction (STEMI) who were treated with primary percutaneous coronary intervention. SUBJECTS AND METHODS: We prospectively included 274 consecutive anterior STEMI patients. Echocardiography was performed during admission and at six months after myocardial infarction. VR was defined as at least 20% increase from baseline in left ventricular end-diastolic volume. Patients were divided into two groups according to their VR status: VR (n=67) and non-VR (n=207). Total and differential leukocyte count, N-terminal pro-brain natriuretic peptide (NT-proBNP) and other biochemical markers were measured at admission and 24 hours later. RESULTS: Compared with the non-VR group, peak creatine kinase MB (CK-MB), NT-proBNP (24 h), neutrophil/lymphocyte ratio, presence of diabetes, no-reflow frequency and wall motion score index were significantly higher in patients with VR (p<0.05 for all). On multivariate logistic regression analysis, NLR (beta=2.000, 95% confidence interval=1.577-2.537, p<0.001) as well as peak CK-MB, NT-proBNP (24 h), WMSI and diabetes incidence were associated with VR. The cutoff value of the neutrophil/lymphocyte ratio obtained by receiver operator characteristic curve analysis was 4.25 for the prediction of VR (sensitivity: 79 %, specificity: 74%). CONCLUSION: In patients with anterior STEMI, initial NLR and NT-proBNP measured 24 hours after admission may be useful for predicting adverse cardiovascular events including left VR.
Biomarkers
;
Creatine Kinase
;
Echocardiography
;
Humans
;
Incidence
;
Leukocyte Count
;
Logistic Models
;
Lymphocytes*
;
Myocardial Infarction*
;
Neutrophils*
;
Percutaneous Coronary Intervention*
;
Prospective Studies
;
Sensitivity and Specificity
;
Stroke Volume
;
Ventricular Remodeling*
9.Arterial Stiffness in Patients Taking Second-generation Antipsychotics.
Ebru FINDIKLI ; Mustafa GÖKÇE ; Vedat NACITARHAN ; Mehmet Akif CAMKURT ; Hüseyin Avni FINDIKLI ; Selçuk KARDAŞ ; Merve Coşgun SAHIN ; Mehmet Fatih KARAASLAN
Clinical Psychopharmacology and Neuroscience 2016;14(4):365-370
OBJECTIVE: That treatment with second-generation antipsychotics (SGAs) causes metabolic side effects and atherosclerosis in patients with schizophrenia and bipolar disorder (BD) is well-known. Increased arterial stiffness is an important marker of arteriosclerosis and has been identified as an independent risk factor for cardiovascular diseases. We measured pulse wave velocity (PWV) as a marker of arteriosclerosis in patients with schizophrenia and BD who use SGAs. METHODS: Patients and controls were collected from our psychiatry outpatient clinics or family medicine. Mental illness was diagnosed according to the Diagnostic and Statistical Manual of Mental Disorders, 4th edition. Mean age, gender, systolic and diastolic blood pressure, body mass index, Framingham risk score (FRS), etc. were determined. Simultaneous electrocardiography and pulse wave were recorded with an electromyography device. The photo-plethysmographic method was used to record the pulse wave. Inclusion criteria included use of SGAs for at least the last six months. Patients with diseases that are known to cause stiffness and the use of typical antipsychotics were excluded. RESULTS: Ninety-six subject (56 patients, 40 controls) were included in our study. There were 49 females, 47 males. Patients had schizophrenia (n=17) and BD (n=39). Their treatments were quetiapine (n=15), risperidone (n=13), olanzapine (n=15), and aripiprazole (n=13). Although differences in mean age, gender, and FRS in the patient and control groups were not statistically significant (p=1), PWV was greater in patients in the antipsychotic group (p=0.048). CONCLUSION: This study supported the liability to stiffness in patients with schizophrenia and BD. Using SGAs may contribute to arterial stiffness in these patients.
Ambulatory Care Facilities
;
Antipsychotic Agents*
;
Aripiprazole
;
Arteriosclerosis
;
Atherosclerosis
;
Bipolar Disorder
;
Blood Pressure
;
Body Mass Index
;
Cardiovascular Diseases
;
Diagnostic and Statistical Manual of Mental Disorders
;
Electrocardiography
;
Electromyography
;
Female
;
Humans
;
Male
;
Methods
;
Pulse Wave Analysis
;
Quetiapine Fumarate
;
Risk Factors
;
Risperidone
;
Schizophrenia
;
Vascular Stiffness*
10.Traumatic Coronary Artery Dissection in a Young Woman after a Kick to Her Back.
Emrah IPEK ; Emrah ERMIS ; Selami DEMIRELLI ; Erkan YILDIRIM ; Mustafa YOLCU ; Bingul Dilekci SAHIN
The Korean Journal of Thoracic and Cardiovascular Surgery 2015;48(4):281-284
We present the case of a 38-year-old woman admitted to our outpatient clinic with accelerating back pain and fatigue following a kick to her back by her husband. Upon arrival, we detected ST segment elevation in the D1, aVL, and V2 leads and accelerated idioventricular rhythm. She had pallor and hypotension consistent with cardiogenic shock. We immediately performed coronary angiography and found a long dissection starting from the mid-left main coronary artery and progressing into the mid-left anterior descending (LAD) and circumflex arteries. She was then transferred to the operating room for surgery. A saphenous vein was grafted to the distal LAD. Since the patient was hypotensive under noradrenaline and dopamine infusions, she was transferred to the cardiovascular surgery intensive care unit on an extracorporeal membrane oxygenator and intra-aortic balloon pump. During follow-up, her blood pressure remained low, at approximately 60/40 mmHg, despite aggressive inotropic and mechanical support. On the second postoperative day, asystole and cardiovascular arrest quickly developed, and despite aggressive cardiopulmonary resuscitation, she died.
Accelerated Idioventricular Rhythm
;
Adult
;
Ambulatory Care Facilities
;
Arteries
;
Back Pain
;
Blood Pressure
;
Cardiopulmonary Resuscitation
;
Coronary Angiography
;
Coronary Vessels*
;
Dopamine
;
Fatigue
;
Female
;
Follow-Up Studies
;
Heart Arrest
;
Humans
;
Hypotension
;
Intensive Care Units
;
Norepinephrine
;
Operating Rooms
;
Oxygenators, Membrane
;
Pallor
;
Saphenous Vein
;
Shock, Cardiogenic
;
Spouses
;
Transplants

Result Analysis
Print
Save
E-mail