Two-port laparoscopic placement of a peritoneal dialysis catheter with abdominal wall fixation.

We devised a new laparoscopic technique for peritoneal dialysis catheter (PDC) placement to overcome the common problem of malfunction or migration of the catheter. Between March 2005 and August 2006, 38 patients underwent laparoscopic catheter placement with lower abdominal wall fixation. Using an abdominal scout film, we checked for catheter tip migration regularly.

MYC quantitation in cell-free plasma DNA by real-time PCR for gastric cancer diagnosis.

Background: Detection of tumor-associated genetic alterations in plasma of cancer patients has recently been suggested to be an accurate method for detecting early or recurrent cancer.

Methods: We performed quantitative real-time PCR for MYC and GAPDH in tissue and plasma samples of 57 patients with gastric cancer and in plasma of 79 cancer-free individuals. We also performed two-color MYC fluorescence in situ hybridization (FISH) in tissue from the 57 patients with gastric cancer.

Risk factors for operative complications in elderly patients during laparoscopy-assisted gastrectomy.

Background: We evaluated the feasibility of laparoscopy-assisted gastrectomy in elderly patients with gastric cancer.

Study Design: We performed a retrospective analysis of 632 patients who underwent laparoscopy-assisted gastrectomy from May 2003 to December 2007 at Seoul National University Bundang Hospital. Postoperative complication rates were compared between patients older and younger than 70 years of age.

Early Experiences of Laparoscopic Aortofemoral Bypass in Korea-report from a Single Center.

Although endovascular approach can be widely applied to occlusive aortoiliac segment, aortofemoral bypass (AFB) continues to offer superior long term patency. In an effort to reduce the morbidity of AFB, LAFB (laparoscopic AFB) has been developed. We report our initial experiences to determine the feasibility and safety.

Clinicopathologic characteristics of gastrointestinal stromal tumor of the stomach.

Background/aims: This study was undertaken to investigate a surgical role in treating gastrointestinal stromal tumors (GISTs) of the stomach and to find their behavior and prognostic factors.

Methodology: The clinicopathologic results of 112 patients with gastric GISTs who underwent surgery from December 1999 to August 2006 were reviewed.

Results: Forty (35.

Staging of T3 and T4 gastric carcinoma with multidetector CT: added value of multiplanar reformations for prediction of adjacent organ invasion.

Purpose: To determine the added value of multiplanar reformation (MPR) images combined with computed tomographic (CT) images in staging of T4 gastric cancers.

Materials And Methods: The institutional review board approved this retrospective study and waived informed consent. One hundred forty-nine consecutive patients (99 men [age range, 33-85 years; mean age, 63.

Risk factors associated with complication following laparoscopy-assisted gastrectomy for gastric cancer: a large-scale korean multicenter study.

Background: The aim of this multicenter retrospective study was to establish background data for future randomized clinical trial comparing open and laparoscopy-assisted gastrectomies (LAGs). We sought to evaluate the technical feasibility of LAG by determining the morbidity and mortality and identifying corresponding predictive factors.

Patients And Methods: A retrospective multicenter study was carried out in Korea on 1,485 patients in who, LAG had been attempted for gastric cancer under the care of ten surgeons, at ten institutions, during the period spanning May 1998 to December 2005.

Cellular and peritoneal immune response after radical laparoscopy-assisted and open gastrectomy for gastric cancer.

Background And Objectives: The aim of this study was to assess cellular and peritoneal immune responses after radical laparoscopic surgery in gastric cancer.

Methods: Peripheral heparinized plasma and plain serum tube samples were collected preoperatively, and at 2 hr, 1 day, and 4 days postoperatively for analysis o; white blood cells, total lymphocytes, T-helper lymphocytes, T-suppressor lymphocytes, B-lymphocytes, natural killer cells, plasma C-reactive protein and serum amyloid-A. Twenty-four hours peritoneal fluid collection was performed on days 1 and 4 for TNF-alpha, IL-6, and IL-10 analysis.

Is gastrectomy mandatory for all residual or recurrent gastric cancer following endoscopic resection? A large-scale Korean multi-center study.

Background And Objectives: To clarify optimal treatment guidelines for residual or local recurrence after endoscopic resection (ER).

Methods: Eighty-six patients underwent gastrectomy due to incomplete ER and local recurrence after ER. The pathological findings of ER and gastrectomy specimens were analyzed.

Laparoscopic surgery for submucosal tumors located at the esophagogastric junction and the prepylorus.

Background: Laparoscopic partial gastric resection is widely accepted as a treatment for gastric submucosal tumors (SMTs). However, SMTs of either end of the stomach are generally managed by subtotal gastrectomies or total gastrectomies. This study was conducted to evaluate surgical techniques for management of SMTs located at the ends of the stomach.

The impact of obesity on LADG for early gastric cancer.

Background: Laparoscopy-assisted distal gastrectomy (LADG) has become a viable alternative treatment for patients suffering with early gastric cancer. Surgeons have long thought that obesity might increase the rate of intraoperative or postoperative complications. We set out to clarify the effect that obesity has on performing LADG for the treatment of early gastric cancer.

Morbidity and mortality of laparoscopy-assisted gastrectomy with extraperigastric lymph node dissection for gastric cancer.

Gastrectomy with extraperigastric lymph node dissection has not been generally acceptable because of increased morbidity and mortality in some Western countries. Recently, many surgeons have become interested in laparoscopic gastric surgery for malignant disease as well as benign lesions because laparoscopic surgery itself has been shown to have many advantages over open surgery. The aims of this study are to evaluate the incidence and nature of operative morbidity and mortality after laparoscopy-assisted gastrectomy (LAG) with extraperigastric lymph node dissection with respect to surgical experience and to identify factors predictive of complications and death.

Gastric remnant infarction following laparoscopy-assisted distal gastrectomy: CT diagnosis in two cases.

We report two cases of gastric remnant infarction following laparoscopy-assisted distal gastrectomy for the treatment of early gastric cancer. In both cases, the infarction was diagnosed with contrast-enhanced computer tomography.

Comparative study of laparoscopy-assisted distal gastrectomy and open distal gastrectomy.

Background: Most studies comparing surgical results of laparoscopic procedures for gastric cancer with open gastrectomies have been conducted based on limited experience. We aimed to compare laparoscopy-assisted distal gastrectomy (LADG) and conventional open distal gastrectomy (ODG) after a protracted learning experience.

Study Design: We retrospectively reviewed medical records data.

Sigmoidorectal intussusception of adenoma of sigmoid colon treated by laparoscopic anterior resection after sponge-on-the-stick-assisted manual reduction.

We present herein a case report of sigmoidorectal intussusception as an unusual case of sigmoid adenomatous polyp. The patient was a 56-year-old man who suffered from rectal bleeding for one day. He initially visited his general practitioner and was diagnosed as having an intraluminal mass of 15 cm from the anal verge.

Learning curve of laparoscopy-assisted distal gastrectomy with systemic lymphadenectomy for early gastric cancer.

Aim: To evaluate the nature of the "learning curve" for laparoscopy-assisted distal gastrectomy (LADG) with systemic lymphadenectomy for early gastric cancer.

Methods: The data of 90 consecutive patients with early gastric cancer who underwent LADG with systemic lymphadenectomy between April 2003 and November 2004 were reviewed. The 90 patients were divided into 9 sequential groups of 10 cases in each group and the average operative time of these 9 groups were determined.

Aberrant methylation of p14ARF gene correlates with poor survival in osteosarcoma.

Unlabelled: We studied the methylation status of the CpG promoter regions of the p16 and p14 genes, mutations of four exons of the CDKN2A gene, and expressions of their corresponding proteins. Thirty-two frozen osteosarcoma tissues were used for methylation-specific polymerase chain reaction and sequence analysis. Immunohistochemical staining for p16 and p14 proteins was done.

Comparison of laparoscopy-assisted by conventional open distal gastrectomy and extraperigastric lymph node dissection in early gastric cancer.

Background And Objectives: Laparoscopy-assisted gastrectomy with lymph node dissection for gastric cancer is considered technically more complicated than the open method. Moreover, the safety and efficacy of laparoscopy-assisted distal gastrectomy (LADG) with extraperigastric lymph node dissection in patients with gastric cancer have not been established yet. To evaluate short-term surgical validity, surgical outcome of the laparoscopy-assisted distal gastrectomy (LADG) with extraperigastric lymph node dissection was compared with that of the conventional open distal gastrectomy (CODG) in patients with early gastric cancer.

Laparoscopic adrenalectomy for pheochromocytoma: comparison with conventional open adrenalectomy.

Purpose: To compare the effectiveness and efficacy of laparoscopic transperitoneal adrenalectomy (LTA) with those of open adrenalectomy (OA) in patients with pheochromocytoma.

Patients And Methods: Among 24 patients (13 male, 11 female) who underwent surgical removal of pheochromocytoma, LTA and OA were performed in 15 and 9, respectively. The mean age was 45.

Lymphatic mapping and sentinel node biopsy using 99mTc tin colloid in gastric cancer.

Objective: The aim of this study was to determine the feasibility of sentinel lymph node (SLN) biopsy in patients with gastric cancer for the assessment of regional lymph node status.

Summary Background Data: SLN is the first draining node from the primary lesion, and it is the first site of lymph node metastasis in malignancy. SLN mapping and biopsy are of great significance in the determination of the extent of lymphadenectomy, allowing patients with gastric cancer to have a better quality of life without jeopardizing survival.

CT arthrography and virtual arthroscopy in the diagnosis of the anterior cruciate ligament and meniscal abnormalities of the knee joint.

Objective: To determine the diagnostic accuracy of CT arthrography and virtual arthroscopy in the diagnosis of anterior cruciate ligament and meniscus pathology.

Materials And Methods: Thirty-eight consecutive patients who underwent CT arthrography and arthroscopy of the knee were included in this study. The ages of the patients ranged from 19 to 52 years and all of the patients were male.

The usefulness of intraoperative needle decompression of the colon during radical gastrectomy--a prospective and randomized trial.

Background/aims: Intraoperative colonic distension is associated with postoperative ileus, which contributes to delayed hospital discharge. A randomized and prospective study was conducted, to evaluate the usefulness of intraoperative needle decompression of the colon during radical gastrectomy for gastric cancer.

Methodology: Fifty patients that had received subtotal or total gastrectomy for gastric cancer were randomly assigned to either a non-decompression (n=27) or a decompression group (n=23).