1.Assessment of arterial stiffness: combine the pieces of the puzzle.
Emre YALCINKAYA ; Baris BUGAN ; Murat CELIK ; Erkan YILDIRIM
Chinese Medical Journal 2013;126(15):2899-2899
3.Late Results of Anterior Cervical Discectomy and Fusion with Interbody Cages.
Murat DAGLI ; Uygur ER ; Serkan SIMSEK ; Murad BAVBEK
Asian Spine Journal 2013;7(1):34-38
STUDY DESIGN: Retrospective analysis. PURPOSE: To evaluate the effectiveness of anterior cervical discectomy with fusion for degenerative cervical disc disease. OVERVIEW OF LITERATURE: Anterior spinal surgery originated in the mid-1950s and graft for fusion was also employed. Currently anterior cervical microdiscectomy and fusion with an intervertebral cage is a widely accepted procedure for treatment of cervical disc hernia. Artificial grafts and cages for fusion are preferred because of their lower morbidity, reduced operating time and acceptable fusion rate. METHODS: The study involved retrospective analysis and investigation of long-term results for 41 consecutive patients who had undergone anterior cervical discectomy and fusion with an intervertebral cage for cervical disc hernia. The angle of lordosis, segmental height and range of motion were evaluated preoperatively and postoperatively at 1 month and 2 years. The clinical outcome was assessed by the visual analog scale and Odom's criteria. RESULTS: The angle of lordosis increased by 2.62degrees and the range of motion angle increased by 5.14degrees after the operation. The segmental height did not change. The visual analog scale and Odom's criteria scores decreased significantly after the operation. CONCLUSIONS: Using a cage in anterior cervical discectomy prevents segmental collapse, so the segmental height and the angle of lordosis are preserved and newly-developed pain does not occur.
Animals
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Diskectomy
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Hernia
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Humans
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Lordosis
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Range of Motion, Articular
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Retrospective Studies
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Transplants
4.Pelvic Hydatid Disease: CT and MRI Findings Causing Sciatica.
Hatice Tuba SANAL ; Murat KOCAOGLU ; Nail BULAKBASI ; Duzgun YILDIRIM
Korean Journal of Radiology 2007;8(6):548-551
Pelvic masses, especially hydatid disease, rarely present with sciatica (1, 2). We present the computed tomography (CT) and the magnetic resonance imaging (MRI) findings of a 49-year-old female patient with presacral hydatid disease, who was evaluated for her sciatica. We also want to emphasize the importance of assessing the pelvis of patients with symptoms and clinical findings that are inconsistent and that cannot be satisfactorily explained by the spinal imaging findings.
Animals
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Anthelmintics/administration & dosage
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Contrast Media/administration & dosage
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Diagnosis, Differential
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Echinococcosis/complications/*diagnosis/surgery
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Echinococcus/drug effects
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Female
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Humans
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Lumbosacral Plexus/parasitology/pathology/radiography
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Magnetic Resonance Imaging/*methods
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Mebendazole/administration & dosage
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Middle Aged
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Pain/etiology
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Pelvis/*pathology/*radiography/surgery
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Radiographic Image Enhancement/methods
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Recurrence
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Sciatica/*parasitology/surgery
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Tomography, X-Ray Computed/*methods
5.The Radiation Dose Absorbed by Healthy Parenchyma Is a Predictor for the Rate of Contralateral Hypertrophy After Unilobar Radioembolization of the Right Liver
Nazim COSKUN ; Aslihan YILDIRIM ; Alptug Ozer YUKSEL ; Murat CANYIGIT ; Elif OZDEMIR
Nuclear Medicine and Molecular Imaging 2022;56(6):291-298
Purpose:
To investigate the predictors of contralateral hypertrophy in patients treated with unilobar transarterial radioembolization (TARE) with yttrium-90-loaded resin microspheres due to unresectable right-liver tumors.
Methods:
Patients who underwent right unilobar TARE with resin microspheres between May 2019 and September 2021 were screened retrospectively. Contralateral hypertrophy was evaluated by calculating the kinetic growth rate (KGR) in 8–10 weeks after TARE. The predictors of increased KGR were determined with linear regression analysis.
Results:
A total of 24 patients (16 with primary and 8 with metastatic liver tumors) were included in the study. After right unilobar TARE, mean volume of the left lobe increased from 368.26 to 436.16 mL, while the mean volume of the right lobe decreased from 1576.22 to 1477.89 mL. The median KGR of the left lobe was 0.28% per week. The radiation dose absorbed by the healthy parenchyma of the right lobe was significantly higher in patients with increased KGR (31.62 vs. 18.78 Gy, p = 0.037). Linear regression analysis showed that the dose absorbed by healthy parenchyma was significantly associated with increased KGR (b = 0.014, p = 0.043).
Conclusion
Patients who received right unilobar TARE for liver malignancies could develop a substantial contralateral hypertrophy, and the radiation dose absorbed by the healthy parenchyma of the right lobe was significantly associated with increased KGR in the left lobe. TARE could have a role for inducing contralateral hypertrophy as it offers the advantage of concurrent local tumor control along with its hypertrophic effect.
6.Tibial Base Plate for Total Knee Arthroplasty: Symmetric or Asymmetric?.
Murat BOZKURT ; Mustafa AKKAYA ; Mesut TAHTA ; Safa GURSOY ; Ahmet FIRAT
Clinics in Orthopedic Surgery 2017;9(3):280-285
BACKGROUND: Ideal positioning and best coverage of the tibial base plate are essential in total knee arthroplasty. There are 2 types of tibial base plates: symmetric and asymmetric. The superiority of one to the other is still controversial. The aim of this study was to compare symmetric and asymmetric tibial base plates for total knee arthroplasty in terms of rotational alignment and coverage. METHODS: The study was conducted on a total of 80 cadaveric tibial bones. Two surgeons were asked to place 20 symmetric (group 1) and 20 asymmetric (group 2) tibial base plates taking care to ensure the best coverage that they were able to determine. Afterwards, the rotational errors and coverage were assessed with reference to the posterior tibial margin and posterior condylar axis on the three-dimensional computed tomography (3D CT) scan. In the second part of the study, the surgeons were asked to place 20 symmetric (group 3) and 20 asymmetric (group 4) base plates taking care to ensure the best rotational alignment. The rotational errors and the areas uncovered or overstuffed after the application were measured on the 3D CT scan. RESULTS: On the comparison of rotational errors, while there was no significant difference between group 1 and group 2 in terms of coverage (p = 0.624), the mean external rotation error was significantly greater in group 2 (p = 0.034). On the comparison of coverage, while there was no significant difference between group 3 and group 4 in terms of rotation (p = 0.36), the mean ratios of the uncovered tibial surface to the total tibial surface (p = 0.041) and also the overstuffed area to the total base plate surface (p = 0.029) were significantly greater in group 4. CONCLUSIONS: The determination of correct size and rotation of the tibial component is essential for favorable outcomes of total knee arthroplasty. In this study, the symmetric tibial base plate design was more effective than the asymmetric design in providing the ideal tibial rotation and coverage.
Arthroplasty
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Arthroplasty, Replacement, Knee*
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Cadaver
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Knee
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Prosthesis Implantation
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Surgeons
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Tomography, X-Ray Computed
7.C-reactive Protein Level, Admission to Intensive Care Unit, and High American Society of Anesthesiologists Score Affect Early and Late Postoperative Mortality in Geriatric Patients with Hip Fracture
Mehmet EKINCI ; Serkan BAYRAM ; Erol GUNEN ; Kemal Arda COL ; Ahmet Mucteba YILDIRIM ; Murat YILMAZ
Hip & Pelvis 2021;33(4):200-210
Purpose:
The main purpose of this study is to evaluate prognostic factors that affected the patients’ early (<30 days) and late (six months, one year, and overall) postoperative mortality following hip fracture surgery.
Materials and Methods:
This retrospective study included 515 patients older than 75 years old with surgically treated osteoporotic hip fracture. The demographic data, American Society of Anesthesiologists (ASA) classification, type of anesthesia, duration of hospital stay, and history of intensive care unit (ICU) stay were collected.An analysis of laboratory values was also performed to determine their relationship with mortality. The primary outcome was survival, determined as the time from the surgery to death or the end of the study. The patients were divided into four groups according to survival time: at the first month, six months, first year, and overall survival. An analysis of demographic and laboratory values was performed to determine their validity as prognostic factors for each group.
Results:
Postoperative C-reactive protein (CRP) level showed an independent association with a poor survival at the first month. ASA classification, admission to the ICU, and preoperative CRP levels showed an independent association with a poor survival for the first six months. Preoperative CRP level showed an independent association with a poor survival for the first year. ASA classification, admission to the ICU, and the preoperative CRP levels showed an independent association with a poor overall survival.
Conclusion
CRP level, a high ASA classification, and postoperative ICU admission were related to poorer overall survival rate following hip fracture surgery in the elderly.
8.Relationship between Pulmonary Artery Stiffness and Functional Capacity in Patients with Heart Failure with Reduced Ejection Fraction.
Erkan YILDIRIM ; Murat CELIK ; Uygar Cagdas YUKSEL ; Mutlu GUNGOR ; Baris BUGAN ; Deniz DOGAN ; Yalcin GOKOGLAN ; Hasan Kutsi KABUL ; Suat GORMEL ; Salim YASAR ; Mustafa KOKLU ; Cem BARCIN
Korean Circulation Journal 2017;47(6):929-938
BACKGROUND AND OBJECTIVES: Functional capacity varies significantly among patients with heart failure with reduced ejection fraction (HFrEF), and it remains unclear why functional capacity is severely compromised in some patients with HFrEF while it is preserved in others. In this study, we aimed to evaluate the role of pulmonary artery stiffness (PAS) in the functional status of patients with HFrEF. METHODS: A total of 46 heart failure (HF) patients without overt pulmonary hypertension or right HF and 52 controls were enrolled in the study. PAS was assessed on parasternal short-axis view using pulsed-wave Doppler recording of pulmonary flow one centimeter distal to the pulmonic valve annulus at a speed of 100 mm/sec. PAS was calculated according to the following formula: the ratio of maximum flow velocity shift of pulmonary flow to pulmonary acceleration time. RESULTS: PAS was significantly increased in the HFrEF group compared to the control group (10.53±2.40 vs. 7.41±1.32, p < 0.001). In sub-group analysis of patients with HFrEF, PAS was significantly associated with the functional class of the patients. HFrEF patients with poor New York Heart Association (NYHA) functional capacity had higher PAS compared those with good functional capacity. In multivariate regression analysis, NYHA class was independently correlated with PAS. CONCLUSION: PAS is associated with functional status and should be taken into consideration as an underlying pathophysiological mechanism of dyspnea in patients with HFrEF.
Acceleration
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Dyspnea
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Heart Failure*
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Heart*
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Humans
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Hypertension, Pulmonary
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Pulmonary Artery*
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Stroke Volume
;
Vascular Stiffness
9.The Relationship between P & QT Dispersions and Presence & Severity of Stable Coronary Artery Disease.
Bingül Dilekci ŞAHIN ; Erkan YILDIRIM ; Emrah IPEK ; Mahir CENGIZ ; Kursat ASLAN ; Esra POYRAZ ; Selami DEMIRELLI ; Murat BAYANTEMUR ; Emrah ERMIS ; Cavlan CIFTCI
Korean Circulation Journal 2016;46(4):522-529
BACKGROUND AND OBJECTIVES: The study aimed to evaluate the correlation between electrocardiographic (ECG) parameters and presence and extent of coronary artery disease (CAD) to indicate the usefulness of these parameters as predictors of severity in patients with stable CAD. SUBJECTS AND METHODS: Two hundred fifty patients, without a history of any cardiovascular event were included in the study. The ECG parameters were measured manually by a cardiologist before coronary angiography. The patients were allocated into five groups: those with normal coronary arteries (Group 1), non-critical coronary lesions (Group 2), one, two and three vessel disease (Group 3, Group 4 and Group 5, respectively. RESULTS: Group 1 had the lowest P wave dispersion (PWD) and P wave (Pmax), QT interval (QTmax), QT dispersion (QTd), corrected QT dispersion (QTcd) and QT dispersion ratio (QTdR), while the patients in group 5 had the highest values of these parameters. Gensini score and QTmax, QTd, QTcmax, QTcd, QTdR, Pmax, and PWD were positively correlated. QTdR was the best ECG parameter to differentiate group 1 and 2 from groups with significant stenosis (groups 3, 4, and 5) (area under curve [AUC] 0.846). QTdR was the best ECG parameter to detect coronary arterial narrowing lesser than 50% and greater than 50%, respectively (AUC 0.858). CONCLUSION: Presence and severity of CAD can be determined by using ECG in patients with stable CAD and normal left ventricular function.
Constriction, Pathologic
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Coronary Angiography
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Coronary Artery Disease*
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Coronary Vessels*
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Electrocardiography
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Humans
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Ventricular Function, Left
10.Central Sagittal Angle of the Sacrum as a New Risk Factor for Patients with Persistent Low Back Pain after Caesarean Section.
Hizir KAZDAL ; Ayhan KANAT ; Osman Ersagun BATCIK ; Bulent OZDEMIR ; Senol SENTURK ; Murat YILDIRIM ; Leyla KAZANCIOGLU ; Ahmet SEN ; Sule BATCIK ; Mehmet Sabri BALIK
Asian Spine Journal 2017;11(5):726-732
STUDY DESIGN: Retrospective. PURPOSE: This study investigated the possible association of persistent low back pain (LBP) with caesarean section (CS) under spinal anesthesia. OVERVIEW OF LITERATURE: Many women suffer from LBP after CS, which is commonly performed under spinal anesthesia. However, this type of LBP is poorly understood, and there is poor consensus regarding increased risk after spinal anesthesia. METHODS: We examined two groups of patients who underwent cesarean delivery under spinal anesthesia. Group I included patients who presented to a neurosurgical clinic complaining of LBP for at least 6 months. Group II was a control group with patients without LBP. We analyzed clinical and sagittal angle parameters, including age, body mass index, parity, central sagittal angle of the sacrum (CSAS), and sacral slope (SS). RESULTS: Fifty-three patients participated in this study: 23 (43.1%) in Group I and 30 (56.9%) in Group II. Non-parametric Mann–Whitney U-tests showed that age, parity, and CSAS significantly differed between the two groups at 6 months. CONCLUSIONS: Age, parity, and CSAS appear to be associated with increased risk for LBP after CS under spinal anesthesia. Future prospective studies on this subject may help validate our results.
Anesthesia, Spinal
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Body Mass Index
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Cesarean Section*
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Consensus
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Female
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Humans
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Low Back Pain*
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Parity
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Pregnancy
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Prospective Studies
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Retrospective Studies
;
Risk Factors*
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Sacrum*