1.Use of Annular Closure Device (Barricaid(R)) for Preventing Lumbar Disc Reherniation: One-Year Results of Three Cases.
Bang Sang HAHN ; Gyu Yeul JI ; Bongju MOON ; Dong Ah SHIN ; Yoon HA ; Keung Nyun KIM ; Do Heum YOON
Korean Journal of Neurotrauma 2014;10(2):119-122
Although lumbar discectomy is an effective treatment for lumbar disc herniation, complications exist, including postoperative disc height loss, facet joint degeneration, and recurrent disc herniation. To solve these problems, annular closure devices have been utilized in other countries, producing satisfactory results, but there has been no report of annular closure device use in our country. Here, we demonstrate the preliminary reports of Barricaid(R) insertion in 3 patients who underwent surgery for lumbar disc herniation.
Diskectomy
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Humans
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Intervertebral Disc Degeneration
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Lumbar Vertebrae
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Zygapophyseal Joint
2.Differentiating between Adenomyomatosis and Gallbladder Cancer: Revisiting a Comparative Study of High-Resolution Ultrasound, Multidetector CT, and MR Imaging.
Sang Heum BANG ; Jae Young LEE ; Hyunsik WOO ; Ijin JOO ; Eun Sun LEE ; Joon Koo HAN ; Byung Ihn CHOI
Korean Journal of Radiology 2014;15(2):226-234
OBJECTIVE: To compare the diagnostic performance of high-resolution ultrasound (HRUS) with contrast-enhanced CT and contrast-enhanced magnetic resonance imaging (MRI) with MR cholangiopancreatography (MRCP) to differentiate between adenomyomatosis (ADM) and gallbladder cancer (GBCA). MATERIALS AND METHODS: Forty patients with surgically proven ADM (n = 13) or GBCA at stage T2 or lower (n = 27) who previously underwent preoperative HRUS, contrast-enhanced CT, and contrast-enhanced MRI with MRCP were retrospectively included in this study. According to the well-known diagnostic criteria, two reviewers independently analyzed the images from each modality separately with a five-point confidence scale. The interobserver agreement was calculated using weighted kappa statistics. A receiver operating characteristic curve analysis was performed and the sensitivity, specificity, and accuracy were calculated for each modality when scores of 1 or 2 indicated ADM. RESULTS: The interobserver agreement between the two reviewers was good to excellent. The mean Az values for HRUS, multidetector CT (MDCT), and MRI were 0.959, 0.898, and 0.935, respectively, without any statistically significant differences between any of the modalities (p > 0.05). The mean sensitivity of MRI with MRCP (80.8%) was significantly higher than that of MDCT (50.0%) (p = 0.0215). However, the mean sensitivity of MRI with MRCP (80.8%) was not significantly different from that of HRUS (73.1%) (p > 0.05). The mean specificities and accuracies among the three modalities were not significantly different (p > 0.05). CONCLUSION: High-resolution ultrasound and MRI with MRCP have comparable sensitivity and accuracy and MDCT has the lowest sensitivity and accuracy for the differentiation of ADM and GBCA.
Adenomyoma/*diagnosis
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Adult
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Aged
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Aged, 80 and over
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Cholangiopancreatography, Magnetic Resonance/methods
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Contrast Media/diagnostic use
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Diagnosis, Differential
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Diagnostic Imaging/*methods
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Female
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Gallbladder Neoplasms/*diagnosis
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Humans
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Magnetic Resonance Imaging/methods
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Male
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Middle Aged
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Observer Variation
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ROC Curve
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Retrospective Studies
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Sensitivity and Specificity
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Tomography, X-Ray Computed/methods
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Ultrasonography/methods
3.The Accuracy of the Swallowing Kinematic Analysis at Various Movement Velocities of the Hyoid and Epiglottis.
Seung Hak LEE ; Byung Mo OH ; Seong Min CHUN ; Jung Chan LEE ; Yusun MIN ; Sang Heum BANG ; Hee Chan KIM ; Tai Ryoon HAN
Annals of Rehabilitation Medicine 2013;37(3):320-327
OBJECTIVE: To evaluate the accuracy of the swallowing kinematic analysis. METHODS: To evaluate the accuracy at various velocities of movement, we developed an instrumental model of linear and rotational movement, representing the physiologic movement of the hyoid and epiglottis, respectively. A still image of 8 objects was also used for measuring the length of the objects as a basic screening, and 18 movie files of the instrumental model, taken from videofluoroscopy with different velocities. The images and movie files were digitized and analyzed by an experienced examiner, who was blinded to the study. RESULTS: The Pearson correlation coefficients between the measured and instrumental reference values were over 0.99 (p<0.001) for all of the analyses. Bland-Altman plots showed narrow ranges of the 95% confidence interval of agreement between the measured and reference values as follows: 0.14 to 0.94 mm for distances in a still image, -0.14 to 1.09 mm/s for linear velocities, and -1.02 to 3.81 degree/s for angular velocities. CONCLUSION: Our findings demonstrate that the distance and velocity measurements obtained by swallowing kinematic analysis are highly valid in a wide range of movement velocity.
Biomechanics
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Deglutition
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Epiglottis
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Mass Screening
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Reference Values
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Reproducibility of Results
4.Laparoscopy Assisted versus Open Distal Gastrectomy with D2 Lymph Node Dissection for Advanced Gastric Cancer: Design and Rationale of a Phase II Randomized Controlled Multicenter Trial (COACT 1001).
Byung Ho NAM ; Young Woo KIM ; Daniel REIM ; Bang Wool EOM ; Wan Sik YU ; Young Kyu PARK ; Keun Won RYU ; Young Joon LEE ; Hong Man YOON ; Jun Ho LEE ; Oh JEONG ; Sang Ho JEONG ; Sang Eok LEE ; Sang Ho LEE ; Ki Young YOON ; Kyung Won SEO ; Ho Young CHUNG ; Oh Kyoung KWON ; Tae Bong KIM ; Woon Ki LEE ; Seong Heum PARK ; Ji Young SUL ; Dae Hyun YANG ; Jong Seok LEE
Journal of Gastric Cancer 2013;13(3):164-171
PURPOSE: Laparoscopy-assisted distal gastrectomy for early gastric cancer has gained acceptance and popularity worldwide. However, laparoscopy-assisted distal gastrectomy for advanced gastric cancer is still controversial. Therefore, we propose this prospective randomized controlled multi-center trial in order to evaluate the safety and feasibility of laparoscopy assisted D2-gastrectomy for advanced stage gastric cancer. MATERIALS AND METHODS: Patients undergoing distal gastrectomy for advanced gastric cancer staged cT2/3/4 cN0/1/2/3a cM0 by endoscopy and computed tomography are eligible for enrollment after giving their informed consent. Patients will be randomized either to laparoscopy-assisted distal gastrectomy or open distal gastrectomy. Sample size calculation revealed that 102 patients are to be included per treatment arm. The primary endpoint is the non-compliance rate of D2 dissection; relevant secondary endpoints are three-year disease free survival, surgical and postoperative complications, hospital stay and unanimity rate of D2 dissection evaluated by reviewing the intraoperative video documentation. DISCUSSION: Oncologic safety is the major concern regarding laparoscopy-assisted distal gastrectomy for advanced gastric cancer. Therefore, the non-compliance rate of clearing the N2 area was chosen as the most important parameter for the technical feasibility of the laparoscopic procedure. Furthermore, surgical quality will be carefully reviewed, that is, three independent experts will review the video records and score with a check list. For a long-term result, disease free survival is considered a secondary endpoint for this trial. This study will offer promising evidence of the feasibility and safety of Laparoscopy-assisted distal gastrectomy for advanced gastric cancer.Trial Registration: NCT01088204 (international), NCCCTS-09-448 (Korea).
Arm
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Disease-Free Survival
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Endoscopy
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Gastrectomy
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Humans
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Informed Consent
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Laparoscopy
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Length of Stay
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Lymph Node Excision
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Lymph Nodes
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Postoperative Complications
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Prospective Studies
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Sample Size
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Stomach Neoplasms