Exposure of the angle of His (AOH) with liver retraction is one of the key processes during laparoscopic sleeve gastrectomy (LSG). A new internal liver retractor, the LiVac (LiVac, Pty Ltd.) has recently been introduced. This study was conducted to evaluate the feasibility of the LiVac in LSG. We applied the LiVac in 20 patients who received LSG. The feasibility was assessed by exposure of the AOH, operation time, complications, and changes of aspartate transaminase and alanine transaminase. In all 20 patients, exposure of the AOH was successful. The mean operation time was 88 minutes. The changes in preoperative and postoperative aspartate transaminase and alanine transaminase levels were 18.6 and 9.1 U/L, respectively. There were no related morbidities. In LSG, exposure of the AOH using the LiVac was technically feasible.

Exposure of the angle of His (AOH) with liver retraction is one of the key processes during laparoscopic sleeve gastrectomy (LSG). A new internal liver retractor, the LiVac (LiVac, Pty Ltd.) has recently been introduced. This study was conducted to evaluate the feasibility of the LiVac in LSG. We applied the LiVac in 20 patients who received LSG. The feasibility was assessed by exposure of the AOH, operation time, complications, and changes of aspartate transaminase and alanine transaminase. In all 20 patients, exposure of the AOH was successful. The mean operation time was 88 minutes. The changes in preoperative and postoperative aspartate transaminase and alanine transaminase levels were 18.6 and 9.1 U/L, respectively. There were no related morbidities. In LSG, exposure of the AOH using the LiVac was technically feasible.

Laparoscopic sleeve gastrectomy (LSG) has become a standalone primary procedure as a bariatric metabolic surgery since the early 2000s. The overall complication rate of LSG is reported to range from 2% to 15%. Staple line leakage (SLL) remains a major adverse event and occurs in approximately 1%–6% of patients. Choosing the optimal treatment modality is a complex process. Clinicians must understand that nutritional support and drainage of fluid collection are essential for initial management. Conservative endoscopic management and sufficient drainage can resolve approximately 70% of SLLs. Endoscopic management of bariatric complications has been rapidly evolving in recent years and can be considered in all patients who are hemodynamically stable. We will review the available endoscopic management techniques, including stent placement (self-expanding stents and bariatric-specific stents), clipping, tissue sealant application, and internal drainage (double-pigtail stents [DPS] placement, endoscopic vacuum therapy, and septotomy). Stent placement remains the mainstream treatment for SLLs. However, healing with stents requires multiple sessions/stents and a long course of recovery. Endoscopic internal drainage is gaining popularity and has the potential to be a superior method. The importance of early intervention and combined endoscopic methods should be recognized.

Purpose: The purpose of this study is to evaluate the usefulness of individualized metabolic surgery score for Korean patients in determining bariatric surgical procedures. Materials and Methods: A total of 135 patients with type 2 diabetes mellitus who underwent sleeve gastrectomy (n=19) or Roux-en-Y gastric bypass (n=116) at our institute with a 1-year follow up were analyzed for the predictive power of diabetes remission using the individualized metabolic surgery scoring system. Results: At the postoperative follow-up of 1 year, the remission of type 2 diabetes mellitus (HbA1C＜6.5%, off medications) was achieved in 88 (65.2%) patients. The remission rates showed no significant differences between patients who underwent sleeve gastrectomy and Roux-en-Y gastric bypass (63.2% versus 65.5%; P=0.84), regardless of the severity of type 2 diabetes mellitus. Although there was no statistically significant difference in the remission rate according to the bariatric surgery procedures (P＞0.99 in mild, P=0.11 in moderate, P＞0.99 in severe IMS score), remission rates were higher in moderate severity patients who underwent Roux-en-Y gastric bypass than in those who underwent sleeve gastrectomy (69.7% versus 37.5%). Conclusion The remission rates after bariatric surgery procedures were similar to that of the previously reported study. Despite the limitations of our data, the individualized metabolic surgery score can be used as a complement to other scoring systems in Korean patients.

PURPOSE: Conventional computed tomography (CT) is the gold standard method for case planning for endovascular aortic aneurysm repair (EVAR). However, aortography with a marking catheter is needed for measuring the actual length of an aneurysm. With advances in imaging technology, a 3-dimensional (3D) workstation can obviate the need for the aortography. The objective of this study was to determine whether a 3D workstation could obviate the need for aortography for EVAR. MATERIALS AND METHODS: One vascular surgeon and 1 interventional radiologist retrospectively assessed axial CT scans and reformatted the 3D CT scans by using the iNtuition workstation (TeraRecon Inc., San Mateo, CA, USA) for 25 patients who underwent EVAR. Four measurements of diameter and length were obtained from each modality. The actual length of an aneurysm for the proper graft was decided by 2 observers by reviewing the aortography with a marking catheter. RESULTS: The measurements from the 2 modalities were reproducible with intraobserver correlation coefficients of 0.89 to 1.0 for conventional CT and 0.98 to 1.0 for 3D workstation. Interobserver correlation coefficients were 0.29 to 0.95 for conventional CT and 0.85 to 0.99 for the 3D workstation. The length of the aneurysm for proper main graft coincided in 18 and 14 patients according to the conventional CT scan and in 21 and 18 patients according to the 3D workstation, respectively. CONCLUSION: The interobserver agreement in planning EVAR was significantly better with the iNtuition 3D workstation. But aortography with a marking catheter may still be needed for selecting the proper graft.
Aneurysm ; Aortic Aneurysm* ; Aortic Aneurysm, Abdominal* ; Aortography ; Catheters ; Endovascular Procedures ; Humans ; Intuition ; Methods ; Retrospective Studies ; Tomography, X-Ray Computed ; Transplants

PURPOSE: Axillary lymph node dissection (ALND) and sentinel lymph node biopsy (SLNB) are important for staging of patients with node-positive breast cancer. However, these can be avoided in select micrometastatic diseases, preventing postoperative complications. The present study evaluated the ability of axillary lymph node maximum standardized uptake value (SUVmax) on positron emission tomography-computed tomography (PET-CT) to predict axillary metastasis of breast cancer.METHODS: The records of invasive breast cancer patients who underwent pretreatment (surgery and/or chemotherapy) PET-CT between January 2006 and December 2014 were reviewed. ALNs were preoperatively evaluated by PET-CT. Lymph nodes were dissected by SLNB or ALND. SUVmax was measured in both the axillary lymph node and primary tumor. Student t-test and chi-square test were used to analyze sensitivity and specificity. Receiver operating characteristic (ROC) and area under the ROC curve (AUC) analyses were performed.RESULTS: SUV-tumor (SUV-T) and SUV-lymph node (SUV-LN) were significantly higher in the triple-negative breast cancer (TNBC) group than in other groups (SUV-T: 5.99, P < 0.01; SUV-LN: 1.29, P=0.014). The sensitivity (0.881) and accuracy (0.804) for initial ALN staging were higher in fine needle aspiration+PET-CT than in other methods. For PET-CT alone, the subtype with the highest sensitivity (0.870) and negative predictive value (0.917) was TNBC. The AUC for SUV-LN was greatest in TNBC (0.797).CONCLUSION: The characteristics of SUV-T and SUV-LN differed according to immunohistochemistry subtype. Compared to other subtypes, the true positivity of axillary metastasis on PET-CT was highest in TNBC. These findings could help tailor management for therapeutic and diagnostic purposes.
Area Under Curve ; Breast Neoplasms ; Electrons ; Humans ; Immunohistochemistry ; Lymph Node Excision ; Lymph Nodes ; Lymphatic Metastasis ; Needles ; Neoplasm Metastasis ; Postoperative Complications ; ROC Curve ; Sensitivity and Specificity ; Sentinel Lymph Node Biopsy ; Triple Negative Breast Neoplasms

PURPOSE: We aimed to evaluate the clinical outcomes and determine the degree of postoperative pain associated with the location of mini-laparotomy sites in gastric cancer patients who underwent laparoscopic-assisted distal gastrectomy (LADG) or totally laparoscopic distal gastrectomy (TLDG). METHODS: Between November 2011 and December 2016, 153 patients who underwent surgery for gastric cancer at Kyung Hee University Hospital at Gangdong were reviewed retrospectively. We divided the patients into LADG with epigastric incision, TLDG with umbilical incision (TLDG_U), and TLDG with Pfannenstiel incision (TLDG_P) groups according to the location of incision for anastomosis and specimen removal. There were 37 cases in the LADG group, 85 in the TLDG_U group, and 31 in the TLDG_P group. The clinical characteristics, numeric rating scale (NRS) scores, and postoperative analgesic usage for 7 days of the three groups were compared. RESULTS: There was no statistically significant difference in clinical characteristics including age, sex, body mass index (BMI), TNM staging, and complications among the three groups. There was no significant difference in the amount of total analgesics received; however, the TLDG_P group received more analgesics (5.26±5.053, p=0.412) during the first 7 postoperative days. The TLDG_P group showed higher NRS scores on postoperative days 0, 2, 3, 4, and 5 (p=0.04, 0.001, 0.003, 0.006, and 0.002 respectively). CONCLUSION: Laparoscopic distal gastrectomy can be performed through various incision sites for increasing the safety of mini-laparotomy. However, a Pfannenstiel incision was shown to be more painful than other incisions.
Analgesics ; Body Mass Index ; Gastrectomy ; Humans ; Neoplasm Staging ; Pain, Postoperative ; Retrospective Studies ; Stomach Neoplasms

PURPOSE: This study aimed to compare the oncologic and short-term outcomes of laparoscopic distal gastrectomy (LDG) and open distal gastrectomy (ODG) for advanced gastric cancer (AGC). MATERIALS AND METHODS: From July 2006 to November 2016, 384 patients underwent distal gastrectomy for AGC. Data on short- and long-term outcomes were prospectively collected and reviewed. Propensity score matching was applied at a ratio of 1:1 to compare the LDG and ODG groups. RESULTS: The operative times were longer for the LDG group than for the ODG group. However, the time to resumption of diet and the length of hospital stay were shorter in the LDG group than in the ODG group (4.7 vs. 5.6 days, P=0.049 and 9.6 vs. 11.5 days, P=0.035, respectively). The extent of lymph node dissection in the LDG group was more limited than in the ODG group (P=0.002), although there was no difference in the number of retrieved lymph nodes between the 2 groups. The 3-year overall survival rates were 98% and 86.9% (P=0.018), and the 3-year recurrence-free survival rates were 86.3% and 75.3% (P=0.259), respectively, in the LDG and ODG groups. CONCLUSIONS: LDG is safe and feasible for AGC, with earlier recovery after surgery and long-term oncologic outcomes comparable to those of ODG.
Diet ; Disease-Free Survival ; Gastrectomy ; Humans ; Laparoscopy ; Length of Stay ; Lymph Node Excision ; Lymph Nodes ; Operative Time ; Propensity Score ; Prospective Studies ; Stomach Neoplasms ; Survival Rate

Purpose: After the initiation of national health insurance coverage in 2019, the number of metabolic bariatric surgeries (MBSs) in Korea has been increasing. Despite evidence regarding its efficacy, many candidates are hesitant regarding surgery for the treatment of severe obesity. This study interviewed patients who received MBS to further understand potential barriers and increase the accessibility of MBS. Materials and Methods: Eight interviewees who received MBS after 2019 participated. The interviews began in mid-July 2022 over approximately a month. Each one-on-one interview lasted a few hours and was done in person. The interviews were transcribed, and the results were analyzed based on grounded theory. Results: This study focused on the quality of life before and after MBS. On a scale of 1 to 10, all patients had a high degree of satisfaction in quality of life after surgery (average score: 8.9, sleeve gastrectomy: 8.8, and bypass surgery: 9). Scores did not differ depending on procedure type, but factors that caused satisfaction and dissatisfaction were distributed differently between the 2 procedures. Conclusion Quality of life is significantly improved for patients undergoing MBS despite discomfort after surgery. Further promotion of the understanding of obesity as a chronic progressive disease is needed for both surgical candidates and the public to increase acceptance of MBS.

Purpose: The aim of this study was to report our experiences of sleeve gastrectomy (SG) in obese patients with type 1 diabetes mellitus (T1DM) and to assess its metabolic outcomes through a review of the literature and a meta-analysis. Materials and Methods: We conducted a retrospective review of the electronic medical records of all patients who underwent bariatric surgery between January 2008 and February 2019 at a single institution. A literature search was performed using PubMed, Cochrane library, and Embase, and a meta-analysis for each direct comparison between pre- and postoperative groups was performed using the random effects DerSimonian–Laird method. Results: We identified three obese patients with T1DM who underwent SG. The baseline body mass index (BMI), HbA1c, and total daily insulin dose was 40.8 (37-47.4) kg/m2 , 7.1% (6%-7.7%), and 92.3 (54-113) units, respectively. After surgery, the BMI and total daily insulin dose reduced to 32.2 (30.2-37.6) kg/m2 and 22.3 (12-40) units, respectively. However, the HbA1c increased to 7.8% (5.4%-10.8%). In the meta-analysis, the weighted mean reduction in BMI, HbA1c, and total daily insulin dose were 10.69 kg/m2 (95% CI 7.01-14.37, P＜0.00001, I2 =0%), 0.3% (95% CI −0.10-0.71, P=0.1447, I2 =0%), and 58.52 units (95% CI 15.96-101.08, P=0.07, I2 =0%), respectively. Conclusion SG showed excellent weight-reducing effects during a short follow-up period in obese patients with T1DM and improved the glycemic control by reducing insulin requirement.