Ji Yeon Park

Soonchunhyang University, Onyang, South Chungcheong, South Korea

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Publications (95)176.12 Total impact

  • Min Jung Jo, Ji Yeon Park, Joon Seon Song, Myeong-Cherl Kook, Keun Won Ryu, Soo-Jeong Cho, Jun Ho Lee, Byung-Ho Nam, Eun Kyung Hong, Il Ju Choi, Young-Woo Kim
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    ABSTRACT: To evaluate the biopathologic features and clinical significance of nodal micrometastasis (MI) in early gastric cancer (EGC). Among 1022 EGC patients who underwent gastrectomy with lymphadenectomy of D1 + β or more from March 2001 to December 2005 at the Korean National Cancer Center, available nodal metastasis was found in 90 pT1N1 patients. Nodal metastasis was confirmed by immunohistochemistry (IHC) with cytokeratin and patients were classified into MI and macrometastasis (MA) groups based on the main tumor burden according to the 6(th) International Union Against Cancer/American Joint Committee on Cancer staging system; the main tumor burden with a diameter of greater than 0.2 mm but no greater than 2 mm as MI, and greater than 2 mm as MA of the representative metastatic node. Proliferative and apoptotic activities of the primary tumor and the nodal metastasis were measured by IHC with Ki-67 and terminal deoxynucleotidyl transferase dUTP nick end labeling, respectively. Biopathologic and clinical features of the patients were analyzed and compared between MI and MA groups. Patients with recurrence were compared with those without recurrence to identify risk factors for recurrence. Thirty-seven patients showed MI and the other 53 patients revealed MA in the lymph node; the incidence of patients with MI and MA was 41.1% and 58.9%. The main tumor burden was 0.9 and 4.6 mm in the representative metastatic node, respectively. Japanese N2 stations were more frequently involved in MA group (20.9%) than in MI group (10.3%) but the difference was not statistically different (P = 0.338). Proliferative and apoptotic activities of MI were decreased than those of MA (26.7% vs 40.5%, P = 0.004 and 1.0% vs 3.0%, P < 0.001, respectively). However, nodal MI in the current study showed a relatively high proliferative activity and an equivalent apoptotic activity compared to other cancers in the previously published studies. Recurrence was observed in 6 patients during the mean follow up period of 87.6 ± 26.2 mo. The recurrence was significantly associated with the presence of MA (P = 0.041) and lymphovascular invasion of the primary tumor (P = 0.032). Lymphadenectomy of D1 + β or more might be necessary in patients with MI in sentinel node to prevent recurrence by clearing MI involving Japanese N2 station.
    World journal of gastroenterology : WJG. 01/2015; 21(2):667-74.
  • Ji Yeon Park, Yong Jin Kim
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    ABSTRACT: Purpose Roux-en-Y gastric bypass (RYGB) is thought to be the gold standard treatment for morbid obesity. However, concerns have been raised by investigators in areas where gastric cancer is prevalent regarding the inaccessibility of the excluded stomach to regular surveillance. This study aimed to evaluate the technical feasibility and short-term surgical outcomes of resectional RYGB. Methods Sixteen consecutive patients who underwent laparoscopic gastric bypass with distal gastric resection for the primary purpose of weight loss between January 2011 and December 2013 were retrospectively reviewed. The perioperative outcomes and weight loss results of these patients were analyzed. Results All procedures were successfully performed laparoscopically. The mean length of the operation and the mean hospital stay were 170 min (range 110–225) and 4 days (range 2–7), respectively. The prevalence of early postoperative complications reached 18.7 % after resectional RYGB, but a severe complication requiring reoperation occurred in only one patient (6.3 %). The percent of excess weight loss was 78.9 % over a mean follow-up period of 14 months. Obesity-related comorbidities including diabetes, hypertension and dyslipidemia resolved or improved after surgery in most patients. Conclusion Resectional RYGB is technically feasible and can be a viable option in countries with a high risk of gastric cancer, where surgeons are already well trained in laparoscopic gastrectomy.
    Surgery Today 12/2014; · 1.21 Impact Factor
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    Ji Yeon Park, Yong Jin Kim
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    ABSTRACT: Laparoscopic distal gastrectomy (LDG) is a well-established procedure for the treatment of early gastric cancer. Several reconstruction methods can be adopted after LDG according to tumor characteristics and surgeon preference. This study aimed to compare the remnant gastric functions after different reconstructions. In total, 221 patients who underwent LDG between March 2005 and October 2013 were reviewed retrospectively. The patients were classified into four groups based on the reconstructive procedure: Billroth I (BI) anastomosis, Billroth II (BII) with Braun anastomosis, Roux-en-Y (RY) reconstruction, or uncut RY reconstruction. Patient demographics, surgical outcomes, and postoperative endoscopic findings were reviewed and compared among groups. Endoscopic evaluations at 11.8±3.8 months postoperatively showed less frequent gastritis and bile reflux in the remnant stomach in the RY group compared to the BI and BII groups. There was no significant difference in the gastric residue among the BI, BII, and RY groups. The incidence of gastritis and bile reflux in the uncut RY group was similar to that in the RY group, while residual gastric content in the uncut RY group was significantly smaller and less frequently observed than that in the RY group (5.8% versus 35.3%, P=0.010). RY and uncut RY reconstructions are equally superior to BI and BII with Braun anastomoses in terms of gastritis and bile reflux in the remnant stomach. Furthermore, uncut RY reconstruction showed improved stasis compared to conventional RY gastrojejunostomy. Uncut RY reconstruction can be a favorable reconstructive procedure after LDG.
    Journal of gastric cancer. 12/2014; 14(4):229-37.
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    Ji Yeon Park, Yong Jin Kim
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    ABSTRACT: Roux-en-Y gastric bypass (RYGB) is one of the most commonly performed bariatric procedures around the world. Although RYGB is the gold standard for treating morbid obesity, it carries the risk of rare but serious long-term complications from malnutrition. We report a case of laparoscopic reversal of RYGB. A female patient reported prolonged incapacitating postprandial pain that consequently made her avoid proper oral intake. Therefore, she became seriously malnourished at 30 months after RYGB and requested reversal of RYGB into normal anatomy. The operation was successfully performed via laparoscopy. Operating time was 120 minutes, and intraoperative blood loss was 20 mL. The patient was discharged without any complications directly related to surgical procedures, although her hospital stay was prolonged by the treatment of asymptomatic septicemia of unknown origin. Laparoscopic reversal of RYGB into normal anatomy is technically feasible and might be performed safely after thorough preoperative evaluation in carefully selected patients.
    Annals of surgical treatment and research. 10/2014; 87(4):217-21.
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    Ji Yeon Park, Dan Song, Yong Jin Kim
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    ABSTRACT: Comprehensive multidisciplinary weight management programs encompassing various conservative measures have shown only modest weight loss results in obese children and adolescents; therefore, bariatric surgery for this population has become a matter of discussion. This study aimed to present our experience with and outcomes for laparoscopic sleeve gastrectomy (LSG) and laparoscopic Roux-en-Y gastric bypass (LRYGB) in morbidly obese Korean adolescents.
    Yonsei Medical Journal 09/2014; 55(5):1366-72. · 1.26 Impact Factor
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    ABSTRACT: The number concentrations of bacteria, viruses, and insoluble submicrometer particles in seawater were simultaneously measured to investigate the effects of biological activity and anthropogenic sources on the number of submicrometer particles in seawater sampled at various coastal locations during different seasons and at varying tidal levels. It was found that when an anthropogenic source was located near a sampling site, there was an increase in the number concentration of insoluble submicrometer particles, as well as enhancements of anthropogenic elements. The concentration of insoluble submicrometer particles was the highest at the Taean site, which had the strongest biological activity. The particle concentration was two to three times higher in spring than in summer or winter, which aligns with the observation that spring had the highest biological activity, which may be caused by the increase in solar radiation and nutrients. During spring tide, when there is maximum tidal variation, strong mixing and the suspension of accumulated sediments can occur. At this time, there were significant increases in the number concentrations of insoluble particles and viruses in seawater. Data suggest that the location, season, and tidal level have great impacts on the biological materials in seawater, which affects the number of insoluble submicrometer particles, and contributes to primary marine aerosols produced by the bubble bursting process.
    Journal of Aerosol Science 09/2014; · 2.71 Impact Factor
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    ABSTRACT: Advanced TRISO coated particles with a ZrC coating layer as a main pressure boundary were fabricated by a fluidized-bed chemical vapor deposition (FBCVD) method using a chloride process. Experiments were performed to determine the effect of codeposition of graphitic carbon on the hardness and obtain the stoichiometric ZrC phase. The ZrC coating layer was composed of a mixture of ZrC and graphitic carbon phases at a low ZrCl4/CH4 ratio. A near-stoichiometric ZrC without the free carbon can be obtained by employing an impeller-driven ZrCl4 vaporizer. The codeposition of the graphitic carbon significantly lowered the hardness of ZrC while increasing the fraction of the carbon. The hardness reached its maximum when ZrC was in a slight carbon deficit without free carbon. As the graphitic carbon increased up to 12 vol%, the hardness was reduced by approximately 50% compared to the near-stoichiometric ZrC.
    Journal of Nuclear Materials 08/2014; 451(s 1–3):97–103. · 2.02 Impact Factor
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    ABSTRACT: OBJECTIVE. The purpose of this study was to evaluate the diagnostic usefulness of combining oblique sagittal and oblique coronal MRI views of the anterior cruciate ligament (ACL) with traditional orthogonal views for the evaluation of selective-bundle ACL injury and to evaluate whether there is a statistical difference in diagnostic ability between 1.5-T and 3-T MRI. MATERIALS AND METHODS. This retrospective study included 114 patients who underwent knee MRI (46 on 1.5 T and 68 on 3 T) and arthroscopy at our institution. Two radiologists evaluated orthogonal views and ACL views on 1.5-T and 3-T MRI in variable combinations. They diagnosed ACL views as normal, entire ligament tear, anteromedial bundle tear, or posterolateral bundle tear. The surgeon then confirmed tears in the anteromedial or posterolateral bundle of the ACL arthroscopically if a selective-bundle tear did exist. The arthroscopically confirmed diagnoses were used as the reference standard. The values were statistically analyzed. RESULTS. Sixty-seven percent of patients showed an ACL tear on arthroscopy, and 33% had a selective bundle tear; of these, 75% were anteromedial bundle tears and 25% were posterolateral bundle tears. On 1.5-T MRI, specificities of each view and combined views were the same (80%). The sensitivities and accuracies of the combined views were higher than the individual views; differences between individual views ranged from 4% to 15%. Reader 1 saw statistically significant differences between the oblique coronal and combined views. Although the performances of reader 2 showed similar results, the p values exceeded the critical value of statistical significance (0.063). On 3-T MRI, differences in specificities between the orthogonal and combined views and between the orthogonal and oblique coronal views were statistically significant (p, 0.016 and 0.008 for readers 1 and 2, respectively). There were no significant differences in the diagnostic performance of 1.5-T and 3-T MRI. CONCLUSION. The oblique coronal view and the combination of the orthogonal view and both additional ACL views provide better diagnostic information with an improvement in specificity on 3-T MRI compared with orthogonal views alone in the diagnosis of selective-bundle tears. Although diagnostic performance was not improved with the addition of the oblique views over orthogonal views on 1.5-T imaging, diagnostic performance was improved on 3-T MRI. Accuracies for individual imaging planes were not significantly different when comparing 1.5-T and 3-T MRI.
    American Journal of Roentgenology 08/2014; 203(2):W199-W206. · 2.74 Impact Factor
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    ABSTRACT: OBJECTIVE. The purpose of this article is to evaluate the correlations between breast-specific gamma imaging (BSGI) findings and mammographic and clinicopathologic characteristics of breast cancer. MATERIALS AND METHODS. Our study included 56 breast cancers that had undergone BSGI between August 2010 and December 2012. We reviewed imaging findings (BSGI and mammography) with histopathologic findings, including tumor size, histologic type, nuclear grade, presence of ductal carcinoma in situ (DCIS), and presence of extensive intraductal component (EIC); and immunochemical features, including estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (ERBB2, formerly HER2), Ki67, and p53. We classified cancers into positive or negative groups on the basis of BSGI visibility and investigated the statistical differences in mammographic and histopathologic characteristics between the BSGI-positive and -negative groups. RESULTS. Among 56 malignancies, 48 (85.7%) were shown to be BSGI positive. Patients in the BSGI-positive group were statistically significantly older than those in the BSGI-negative group (p = 0.027). BSGI-positive cancers were statistically significantly larger than BSGI-negative cancers (p = 0.002). Cancers 1.0 cm or larger, unlike those of subcentimeter size, were statistically significantly more visible on BSGI (p = 0.004). The mammographic findings and mammographic densities did not statistically significantly differ between the BSGI-positive and -negative groups. Invasiveness of cancer showed no statistically significant difference on BSGI finding. Cancers with a DCIS component tended to be BSGI positive, but without statistical significance (p = 0.051). Visibility on BSGI was not statistically significantly associated with EIC, nuclear grade, ER, PR, ERBB2, Ki67, and p53. CONCLUSION. The sensitivity of BSGI for breast cancer was 85.7%. Breast cancers in older patients, cancers larger than 1.0 cm, and cancers with the DCIS component tended to be visible on BSGI. BSGI was an equally sensitive tool to detect the breast cancer in women with fatty and dense breast.
    AJR. American journal of roentgenology. 07/2014; 203(1):223-8.
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    Gru Han, Ji Yeon Park, Yong Jin Kim
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    ABSTRACT: The advantages of totally laparoscopic surgery in early gastric cancer (EGC) are unproven, and some concerns remain regarding the oncologic safety and technical difficulty. This study aimed to evaluate the technical feasibility and clinical benefits of totally laparoscopic distal gastrectomy (TLDG) for the treatment of gastric cancer compared with laparoscopy-assisted distal gastrectomy (LADG).
    Journal of gastric cancer. 06/2014; 14(2):105-10.
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    Ji Yeon Park, Dan Song, Yong Jin Kim
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    ABSTRACT: Bariatric surgery has become more prevalent owing to the worldwide obesity epidemic. With the growing number of bariatric procedures performed annually, the requirement for revisional and secondary operations is increasing accordingly. This study aimed to evaluate the initial experience of revisional bariatric surgery at a single specialized center.
    Annals of surgical treatment and research. 06/2014; 86(6):295-301.
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    ABSTRACT: Background Bleeding after gastrectomy is a less frequent, but fatal complication. Since the pathophysiology and clinical manifestation differ considerably across cases, the exact outcome of postoperative bleeding is unclear. This study aimed to improve management practices for postgastrectomy bleeding by the analysis of risk factors and clinical patterns. Methods From January 2001 to December 2010, 5739 patients underwent gastrectomy for gastric cancer at National Cancer Center, Korea. Clinical data of the patients with postoperative bleeding were obtained from a prospectively established database, and risk factors for bleeding were analyzed using multivariate binary logistic regression. Results Incidence of the postoperative bleeding was 0.8% (n=48) and subsequent mortality rate was 10.4% (5/48). Majority of anastomotic bleeding occurred early within 1 day of the operation (5/7, 71.4%). It was successfully managed with conservative treatment in 3 patients, endoscopic intervention in 2 and relaparotomy in the other 2 patients. Arterial bleeding occurred in 24 patients, with the main site being the splenic artery (11/24, 45.8%), and mostly manifested in the delayed period (median, 12 days). Fifteen of them underwent radiologic intervention, and 4 of these patients were referred for surgery eventually. The other 9 patients underwent relaparotomy as first-line treatment. Independent risk factors for the bleeding were male (hazard ratio (HR) 2.253, 95% confidence interval (CI), 1.079-4.704), comorbidity (HR 2.709, 95% CI 1.440-5.095), previous abdominal operation (HR 2.785, 95% CI 1.322-5.867), and palliative surgery(HR 4.142, 95% CI 1.443-11.889). Conclusion Postgastrectomy bleeding can be managed properly considering its origin, severity, onset, and the risk factors.
    Surgery 06/2014; · 3.11 Impact Factor
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    ABSTRACT: To identify preoperative computed tomography (CT) predictors associated with conversion from laparoscopic to open cholecystectomy and to propose the risk scoring model for prediction of conversion by integrating clinical, laboratory, and CT parameters.
    Journal of computer assisted tomography. 05/2014;
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    ABSTRACT: To determine the CT findings and assess their diagnostic performance in differentiating early perforated appendicitis from nonperforated appendicitis, and to compare therapeutic approaches and clinical outcomes between two types of appendicitis. Our retrospective study was approved by our institutional review board and informed consent was waived. From July 2012 to July 2013, 339 patients [mean age 40.8 years; age range 19-80 years; 183 male (mean age 40.5 years; age range 19-79 years) and 156 female (mean age 41.2 years; age range 19-80 years)] who underwent appendectomy with preoperative CT examination for suspected acute appendicitis were included, with exclusion of 37 patients with specific CT findings for advanced perforated appendicitis. And they were categorized into nonperforated and early perforated appendicitis groups according to surgical and pathologic reports. The following CT findings were evaluated by two radiologists blinded to pathologic and surgical findings: transverse diameter of the appendix, thickness of the appendiceal wall, the depth of intraluminal appendiceal fluid, appendiceal wall enhancement, presence or absence of focal defect in the appendiceal wall, intraluminal appendiceal air, appendicolith/fecalith, periappendiceal changes, cecal wall thickening, and free fluid. The type of surgical procedures, performance of surgical drainage, and the length of hospital stay were recorded. Univariate and multivariate logistic regression analysis were used to determine the CT findings for differentiating early perforated appendicitis from nonperforated appendicitis, a total of 75 (22%) of the 339 patients was diagnosed with early perforated appendicitis. Focal wall defect [adjusted odds ratio (aOR), 23.40; p < 0.001], circumferential periappendiceal changes (aOR, 5.63; p < 0.001), appendicoliths/fecaliths (aOR, 2.47; p = 0.015), and transverse diameter of the appendix (aOR, 1.22; p = 0.003) were independently differentiating variables for early perforated appendicitis. The transverse diameter of the appendix (≥11 mm) had the highest sensitivity (62.7%) and focal wall defect in the appendiceal wall showed the highest specificity (98.8%). The prevalence of surgical drainage was higher (p = 0.001) and the mean hospital stay was approximately one day longer (p < 0.001) in the early perforated group than nonperforated group. CT can be helpful in differentiating early perforated appendicitis from nonperforated appendicitis, although the sensitivity of the evaluated findings was somewhat limited.
    Abdominal Imaging 03/2014; · 1.91 Impact Factor
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    ABSTRACT: To determine whether the application of post-operative intravenous (IV)-iron for acute isovolemic anemia after gastrectomy for cancer may be effective. Among 2078 gastric cancer patients who underwent surgery between February 2007 and August 2009 at the National Cancer Center Korea, 368 patients developed post-operative anemia [hemoglobin-(Hb)-level < 9 g/dL] within the first postoperative week. Patients requiring transfusions were excluded. IV-iron was administered to 63 patients (iron group). Sixty patients were observed without treatment (observation group). The clinical outcomes of the groups were compared concerning clinicopathologic data, morbidity, and changes in Hb levels using Fisher's exact test, Student's t-test and the Z-test. The initial Hb level was higher in the iron group than in the observation group (7.3 ± 1.0 g/dL vs 8.4 ± 0.5 g/dL, P < 0.001). The slope of the changes in the Hb level was significantly higher in the iron group than in the observation group (0.648 ± 0.054 vs 0.349 ± 0.038, P < 0.001). The Hb level 1 and 3 mo post-operatively increased from 10.7 ± 1.3 to 11.9 ± 1.3 g/dL in the iron group (P = 0.033) and from 10.1 ± 1.0 to 10.8 ± 1.4 g/dL in the observation group (P < 0.001). The postoperative hospital stay was significantly longer in the iron group than in the observation group (10.5 ± 6.8 d vs 7.6 ± 5.5 d, P = 0.011). There were no significant differences in the major and surgical complications between the groups (6.3% vs 13.3%, P = 0.192; 9.5% vs 3.3%, P = 0.164). IV-iron supplementation may be an effective treatment for post-operative isovolemic post-gastrectomy anemia and may be a better alternative than observation.
    World Journal of Gastroenterology 02/2014; 20(7):1852-7. · 2.43 Impact Factor
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    ABSTRACT: BACKGROUND Since extrusion has many desirable characteristics such as high shear, rapid mixing, short residence time, controllable barrel temperature, and adaptability to process modification, the technology has been applied as a viable continuous pretreatment method for empty fruit bunches (EFB). RESULTSOptimized conditions for a continuous twin-screw-driven reactor (CTSR) were determined to be 170°C barrel temperature, 1.6% (w/v) sodium hydroxide, 1:8 solid to liquid ratio, and 5 rpm screw rotational speed. Under these operating conditions, 56.55% of lignin and 39.18% of hemicellulose fractions were solubilized from raw EFB, which increases the glucan content in pretreated EFB from 39.25% to 53.60%. After subsequent 48-h enzymatic hydrolysis of pretreated EFB, the highest digestibility of 92.4% was achieved with an enzyme loading of 30 FPU g−1-glucan for cellulase and 70 pNPG g−1-glucan for β-glucosidase. CONCLUSIONCTSR processing has great potential for increasing the efficiency of EFB pretreatment compared with batch pretreatments. © 2013 Society of Chemical Industry
    Journal of Chemical Technology & Biotechnology 02/2014; 89(2). · 2.50 Impact Factor
  • The American surgeon 02/2014; 80(2):51-53. · 0.92 Impact Factor
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    ABSTRACT: There is no consensus on the optimal method of primary tumor control, determined by preoperative clinical factors, during sentinel node (SN) navigation surgery for early gastric cancer (EGC). In this study, we investigated the accuracy of clinical diagnosis based on preoperative examination in patients with EGC and proposed surgical options for primary tumor control during SN navigation surgery. We analyzed 815 patients with clinical stage IA gastric cancer who underwent gastrectomy at the National Cancer Center in Korea between March 2001 and February 2011. The clinical stage was determined by endoscopy, endoscopic ultrasonography, and abdominal computed tomography. The preoperative assessment of tumor depth and tumor size was accurate in 57.5 and 70.8 % of patients, respectively. Tumor depth and size were underestimated in 8 and 25.3 % of patients. The overall accuracy of histologic diagnosis by endoscopic biopsy was 87.2 %. Of those tumors diagnosed preoperatively as differentiated, 20.5 % revealed mixed histology of undifferentiated type. The recommendation for SN biopsy may be limited to tumors sized 3 cm or smaller to avoid positive lateral margins and to minimize the risk of skip metastases. Endoscopic resection may safely be applied to small mucosal cancers, but other surgical options should be employed for undifferentiated large mucosal lesions, given their tendency for diffuse invasion. Full-thickness resection is preferable for submucosal cancers, to secure clear vertical margins.
    Annals of Surgical Oncology 12/2013; · 3.94 Impact Factor
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    ABSTRACT: This study was designed to assess the chronological change in health-related quality of life (HRQOL) following robot-assisted distal gastrectomy (RADG) for early gastric cancer (EGC) and to compare the HRQOL of the patients undergoing RADG with that of the general population. Patients undergoing RADG for EGC between March 2010 and May 2011 were enrolled. The European Organization for Research and Treatment of Cancer (EORTC) core questionnaire (QLQ-C30) and the gastric cancer-specific module (QLQ-STO22) were completed before the operation and at 1 week as well as 1, 3, 6, and 12 months postsurgery. HRQOL data of the enrolled patients were compared to reference values obtained from the general population. A total of 30 patients were enrolled, and the overall compliance for questionnaire response was 94.4 %. The worst scores for most of the domains were observed at 1 week postsurgery and usually returned to baseline levels within 3 months, except for fatigue, dysphagia, pain, and eating restriction. Diarrhea was the only symptom that did not recovered after 1 year. Before surgery, patients reported significantly worse social function and financial difficulties compared to the general population, which persisted for 1 year postsurgery. The immediate deterioration of HRQOL after RADG was restored to baseline levels within 3 months postsurgery in the majority of the patients. Robotic assistance might aid in the rapid recovery of global health status after surgery in EGC patients. Prolonged impairment in social function compared with the general population suggests that psychological support is necessary even for EGC patients.
    World Journal of Surgery 12/2013; · 2.35 Impact Factor
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    ABSTRACT: Robotic surgery for gastric cancer is a promising alternative to laparoscopic surgery, but the data are limited. We aimed to evaluate whether gaining experience in robotic gastrectomy could improve surgical outcomes in the treatment of gastric cancer. Two hundred and seven consecutive cases of patients with clinical stage I gastric cancer who underwent robotic surgery at the National Cancer Center of Korea between February 2009 and February 2012 were retrospectively reviewed. Surgical outcomes were analyzed and compared between the initial 100 and later 100 cases. Seven patients required conversion to open surgery and were excluded from further analysis. The mean operating time for all patients was 248.8 minutes, and mean length of hospitalization was 8.0 days. Twenty patients developed postoperative complications. Thirteen were managed conservatively, while 6 had major complications requiring invasive procedures. One mortality occurred owing to myocardial infarction. Operating time was significantly shorter in the latter 100 cases than in the initial 100 cases (269.9 versus 233.5 minutes, P<0.001). The number of retrieved lymph nodes was significantly greater in the latter cases (35.9 versus 39.9, P=0.032). The hospital stay of patients with complications was significantly longer in the initial cases than in the latter cases (16 versus 7 days, P=0.005). Increased experience with the robotic procedure for gastric cancer was associated with improved outcomes, especially in operating time, lymph node retrieval, and shortened hospital stay of complicated patients. Further development of surgical techniques and technology might enhance the role of robotic surgery for gastric cancer.
    Journal of gastric cancer. 12/2013; 13(4):255-62.

Publication Stats

428 Citations
176.12 Total Impact Points

Institutions

  • 2014
    • Soonchunhyang University
      Onyang, South Chungcheong, South Korea
  • 2012–2014
    • National Cancer Center Korea
      • Gastric Cancer Branch
      Kōyō, Gyeonggi Province, South Korea
    • Korea Institute of Energy Research
      Sŏul, Seoul, South Korea
  • 2008–2014
    • Gwangju Institute of Science and Technology
      • School of Environmental Science and Engineering
      Gwangju, Gwangju, South Korea
    • Pukyong National University
      • Faculty of Food Science and Biotechnology
      Pusan, Busan, South Korea
    • Ulsan University Hospital
      Urusan, Ulsan, South Korea
  • 2002–2014
    • Korea Atomic Energy Research Institute (KAERI)
      • Nuclear Materials Research Division
      Daiden, Daejeon, South Korea
  • 2013
    • Seoul National University Bundang Hospital
      • Department of Surgery
      Seoul, Seoul, South Korea
  • 2011–2012
    • Myongji Hospital
      Kōyō, Gyeonggi Province, South Korea
    • Chonnam National University
      • College of Agriculture and Life Sciences
      Gwangju, Gwangju, South Korea
    • Seoul National University
      • Department of Chemistry
      Sŏul, Seoul, South Korea
  • 2006–2011
    • Pusan National University
      • College of Medicine
      Pusan, Busan, South Korea
  • 2008–2009
    • Korea Institute of Science and Technology
      • Center for Neuro-Medicine
      Sŏul, Seoul, South Korea