Effect of visceral fat area on outcomes of laparoscopyassisted distal gastrectomy for gastric cancer: subgroup analysis by gender and parameters of obesity

PURPOSE: The aim of this study was to investigate the impact of the visceral fat area (VFA) of patients with gastric cancer undergoing laparoscopic surgery on operative outcomes such as number of retrieved lymph nodes (LNs) and operative time. METHODS: We retrospectively reviewed the medical records and the CT scans of 597 patients with gastric cancer who underwent laparoscopy assisted distal gastrectomy (LADG) with partial omentectomy and LN dissection (>D1 plus beta). Patients were stratified by gender, VFA, and body mass index (BMI), and the clinicopathologic characteristics and operative outcomes were evaluated. Multiple linear regression analysis was used to assess the effects of VFA and BMI on the number of retrieved LNs and operative time in male and female patients. RESULTS: The mean number of retrieved LNs was significantly decreased for both male and female patients with high VFA. The operative time was significantly longer for both male and female patients with high VFA. The number of retrieved LNs had a statistically significant negative correlation with VFA in both men and women, but not with BMI. The operative time had a statistically significant positive correlation with VFA in men, whereas the operative time had a statistically significant positive correlation with BMI in women. CONCLUSION: The preoperative VFA of male patients with gastric cancer who undergo LADG may affect the number of retrieved LNs and operative time. VFA was more useful than BMI for predicting outcomes of LADG.

Comprehension of readmission after laparoscopy assisted distal gastrectomy: what are the causes?

PURPOSE: The aim of this study is to evaluate long-term outcomes regarding readmission for laparoscopy-assisted distal subtotal gastrectomy (LADG) compared to conventional open distal subtotal gastrectomy (CODG) for early gastric cancer (EGC). METHODS: Between January 2003 and December 2006, 223 and 106 patients underwent LADG and CODG, respectively, for EGC by one surgeon. The clinicopathologic characteristics, postoperative outcomes, postoperative complications, overall 5-year survival, recurrence, and readmission were retrospectively compared between the two groups. RESULTS: Multiple readmission rate in LADG was significantly less than that in CODG (0.4% vs. 3.8%, P = 0.039), although the readmission rate, reoperation rate after discharge, and mean readmission days were not significantly different between the two groups. Readmission rates of the LADG and CODG groups were 12.6% and 14.2%, respectively. First flatus time and postoperative hospital stay was significantly shorter in the LADG group. However, there was no significant difference in the complication rates between the two groups. Overall 5-year survival rates of the LADG and CODG group were 100% and 99.1% (P = 0.038), respectively. CONCLUSION: Compared to the CODG group, the LADG group has several advantages in surgical short-term outcome and some benefit in terms of readmission in surgical long-term outcome for patients with EGC, even though the oncologic outcome of LADG is similar to that of CODG over 5 years.

Comparative Study of Laparoscopy-Assisted versus Open Subtotal Gastrectomy for pT2 Gastric Cancer

PURPOSE: Laparoscopy-assisted distal gastrectomy (LADG) is a widely accepted surgery for early gastric cancer. However, its use in advanced gastric cancer has rarely been studied. The aim of this study is to investigate the feasibility and survival outcomes of LADG for pT2 gastric cancer. MATERIALS AND METHODS: Between January 2004 and December 2009, we evaluated 67 and 52 patients who underwent open distal gastrectomy (ODG) and LADG, respectively, with diagnosis of pT2 gastric cancer. The clinicopathological characteristics, postoperative outcomes, and survival were retrospectively compared between the two groups. RESULTS: There were statistically significant differences in the proximal margin of the clinicopathological parameters. The operation time was significantly longer in LADG than in ODG (207.7 vs. 159.9 minutes). There were 6 (9.0%) and 5 (9.6%) complications in ODG and LADG, respectively. During follow-up periods, tumor recurrence occurred in 7 (10.4%) patients of the ODG and in 4 (7.7%) patients of the LADG group. The 5-year survival rate of ODG and LADG was 88.6% and 91.3% (p=0.613), respectively. In view of lymph node involvement, 5-year survival rates were 96.0% in ODG versus 97.0% in LADG for patients with negative nodal metastasis (p=0.968) and 80.9% in ODG versus 78.7% in LADG for those with positive nodal metastasis (p=0.868). CONCLUSION: Although prospective study is necessary to compare LADG with open gastrectomy for the treatment of advanced gastric cancer, laparoscopy-assisted distal gastrectomy might be considered as an alternative treatment for some pT2 gastric cancer.

Patient Perception of Natural Orifice Transluminal Endoscopic Surgery in an Endoscopy Screening Program in Korea

PURPOSE: Natural orifice transluminal endoscopic surgery (NOTES) is a new method of accessing intracavitary organs in order to minimize pain by avoiding incisions in the body wall. The aim of this study is to determine patients' acceptance of NOTES in Korea and to compare their views about laparoscopic surgery and NOTES for benign and malignant diseases. MATERIALS AND METHODS: The target number of total subjects was calculated to be 540. The subjects were classified into 18 sub-groups based on age groups, gender, and history of prior surgery. The questionnaire elicited information about demographic characteristics, medical check-ups, diseases, endoscopic and surgical histories, marital status and childbirth, the acceptance of NOTES, and the preferred routes for NOTES. In addition, the subjects chose laparoscopic surgery or NOTES for a hypothetical cholecystectomy and rectal cancer surgery, and responded to questions regarding the acceptable complication rate of NOTES, the appropriate cost of NOTES, and the reason(s) why they did not select NOTES. RESULTS: 486 of 540 patients (90.0%) who agreed to participate in this study completed the questionnaire. NOTES was preferred by the following patients: elderly; a history of treatment due to a disease; having regular check-ups; and a history of an endoscopic procedure (p<0.05). The most preferred route for NOTES was the stomach (67.1%). Eighty-four percent of the patients choosing NOTES responded that the complication rate of the new surgical method should be the same or lower than laparoscopic surgery. Vague anxiety over a new surgical method was the most common reason why NOTES was not selected in benign and malignant diseases (64% and 73%), respectively. CONCLUSION: Patients appear to be interested in the potential benefits of NOTES and would embrace it if their concerns about safety are met. We believe that qualified surgical endoscopists can meet these safety concerns, and that NOTES development has the potential to flourish.

Risk factors associated with delayed gastric emptying after subtotal gastrectomy with Billroth-I anastomosis using circular stapler for early gastric cancer patients / 대한외과학회지

PURPOSE: Gastric surgery may potentiate delayed gastric emptying. Billroth I gastroduodenostomy using a circular stapler is the most preferable reconstruction method. The purpose of this study is to analyze the risk factors associated with delayed gastric emptying after radical subtotal gastrectomy with Billroth I anastomosis using a stapler for early gastric cancer. METHODS: Three hundred and seventy-eight patients who underwent circular stapled Billroth I gastroduodenostomy after subtotal gastrectomy due to early gastric cancer were analyzed retrospectively. One hundred and eighty-two patients had Billroth I anastomosis using a 25 mm diameter circular stapler, and 196 patients had anastomosis with a 28 or 29 mm diameter circular stapler. Clinicopathological features and postoperative outcomes were evaluated and compared between the two groups. Delayed gastric emptying was diagnosed by symptoms and simple abdomen X-ray with or without upper gastrointestinal series or endoscopy. RESULTS: Postoperative delayed gastric emptying was found in 12 (3.2%) of the 378 patients. Among all the variables, distal margin and circular stapler diameter were significantly different between the cases with delayed gastric emptying and no delayed gastric emptying. There were statistically significant differences in sex, body mass index, comorbidity, complication, and operation type according to circular stapler diameter. In both univariate and multivariate logistic regression analyses, only the stapler diameter was found to be a significant factor affecting delayed gastric emptying (P = 0.040). CONCLUSION: In this study, the circular stapler diameter was one of the most significant predictable factors of delayed gastric emptying for Billroth I gastroduodenostomy. The use of a 28 or 29 mm diameter circular stapler rather than a 25 mm diameter stapler in stapled gastroduodenostomy for early gastric cancer can reduce postoperative delayed gastric emptying associated with anastomosic stenosis or edema with relative safety.

Long-Term Outcomes and Feasibility with Laparoscopy-Assisted Gastrectomy for Gastric Cancer

PURPOSE: Recently, laparoscopy-assisted gastrectomy (LAG) has been widely accepted modality for early gastric cancer in Korea. The indication of LAG may be extended in an experienced institution. In our institution, the first case of laparoscopy-assisted gastrectomy (LAG) for gastric cancer was performed in May 1998. We retrospectively reviewed the long-term oncologic outcomes over 12 years to clarify the feasibility of LAG for gastric cancer. MATERIALS AND METHODS: The authors retrospectively analyzed 753 patients who underwent LAG for gastric cancer, from May 1998 to August 2010. We reviewed clinicopathological features, postoperative outcomes, mortality and morbidity, recurrence, and survival of LAG for gastric cancer. RESULTS: During the time period, 3,039 operations for gastric cancer were performed. Among them, 753 cases were done by LAG (24.8%). There were 69 cases of total gastrectomy, 682 subtotal gastrectomies, and 2 proximal gastrectomies. According to TNM stage, 8 patients were in stage 0, 619 in stage I, 88 in stage II, and 38 in stage III. The operation-related complications occurred in 77 cases (10.2%). Median follow-up period was 56.2 months (range 0.7~165.6 months). Twenty-five patients (3.3%) developed recurrence, during the follow-up period. The overall 5-year and disease free survival rates were 97.1% and 96.3%, respectively. CONCLUSIONS: The number of postoperative complications and survival rates of our series were comparable to the results from that of other reports. The authors consider LAG to be a feasible alternative for the treatment of early gastric cancer. However, rationale for laparoscopic surgery in advanced gastric cancer has yet to be determined.

Comparative Study of Hand-Sutured versus Circular Stapled Anastomosis for Gastrojejunostomy in Laparoscopy Assisted Distal Gastrectomy

PURPOSE: Mechanical stapler is regarded as a good alternative to the hand sewing technique, when used in gastric reconstruction. The circular stapling method has been widely applied to gastrectomy (open orlaparoscopic), for gastric cancer. We illustrated and compared the hand-sutured method to the circular stapling method, for Billroth-II, in patients who underwent laparoscopy assisted distal gastrectomy for gastric cancer. MATERIALS AND METHODS: Between April 2009 and May 2011, 60 patients who underwent laparoscopy assisted distal gastrectomy, with Billroth-II, were enrolled. Hand-sutured Billroth-II was performed in 40 patients (manual group) and circular stapler Billroth-II was performed in 20 patients (stapler group). Clinicopathological features and post-operative outcomes were evaluated and compared between the two groups. RESULTS: Nosignificant differences were observed in clinicopathologic parameters and post-operative outcomes, except in the operation times. Operation times and anastomosis times were significantly shorter in the stapler group (P=0.004 and P<0.001). CONCLUSIONS: Compared to the hand-sutured method, the circular stapling method can be applied safely and more efficiently, when performing Billroth-II anastomosis, after laparoscopy assisted distal gastrectomy in patients with gastric cancer.

Comparative Study of Complete and Partial Omentectomy in Radical Subtotal Gastrectomy for Early Gastric Cancer

PURPOSE: Curative surgery for patients with advanced or even early gastric cancer can be defined as resection of the stomach and dissection of the first and second level lymph nodes, including the greater omentum. The aim of this study was to evaluate the short- and long- term outcomes of partial omentectomy (PO) as compared with complete omentectomy (CO). MATERIALS AND METHODS: Seventeen consecutive open distal gastrectomies with POs were initially performed between February and July in 2006. The patients' clinicopathologic data and post-operative outcomes were retrospectively compared with 20 patients who underwent open distal gastrectomies with COs for early gastric cancer in 2005. RESULTS: The operation time in PO group was significantly shorter than that in CO group (142.4 minutes vs. 165.0 minutes, p=0.018). The serum albumin concentration on the first post-operative day in PO group was significantly higher than CO group (3.8 g/dL vs. 3.5 g/dL, p=0.018). Three postoperative minor complications were successfully managed with conservative treatment. Median follow-up period between PO and CO was 38.1 and 37.7 months. All patients were alive without recurrence until December 30, 2009. CONCLUSION: PO during open radical distal gastrectomy can be considered a more useful procedure than CO for treating early gastric cancer. To document the long-term technical and oncologic safety of this procedure, a large-scale prospective randomized trial will be needed.

Glomerular Filtration Rate Difference between Renal Cyst Group and Control Group / 가정의학회지

BACKGROUND: The simple renal cyst is the most prevalent cystic deformation in adults and is most of them are incidentally found during medical examination. In this study, the clinical differences were compared between simple renal cyst and control groups diagnosed by abdominal ultrasonography during periodic medical examination. METHODS: We randomly selected 2,277 persons who took medical examination in one general hospital health promotion center. Among them, analysis was conducted for 188 subjects with simple renal cyst and 188 subjects without renal cyst whose sex, age, and body mass index were matched. Renal cyst subjects were compared with control group to search for their relationship with hypertension, renal function and microscopic hematuria, past medical history, social history, results of other abdominal ultrasonography findings, urine test, and blood test. RESULTS: Among 2,213 subjects, simple renal cyst was found in 188 subjects (8.5%). The subjects who had more than three simple renal cysts were significant older (P = 0.05) and the oldest age was 70's. Also, higher hypertension prevalence (P = 0.05), more microscopic hematuria, higher serum creatinine (P = 0.02), and lower glomerular filtration rate (P < 0.01) were observed in simple renal cyst group. CONCLUSION: It is needed to survey size, shape and change of simple renal cyst using abdominal ultrasonography as well as how its progression may be related to developing hypertension, decreased renal function and microscopic hematuria.

Laparoscopic splenectomy for sclerosing angiomatoid nodular transformation of the spleen / 대한외과학회지

Primary splenic tumors are rare and mainly found incidentally on radiologic studies. Among them, sclerosing angiomatoid nodular transformation (SANT) of the spleen is a new entity defined as a benign pathologic lesion. Most SANTs have no clinical symptoms and are occasionally accompanied by other splenic diseases such as malignancies. So, the exact diagnosis of the nature of the splenic tumor is mandatory for further treatment. But, preoperative diagnosis is not easy since it is difficult to obtain the tissue from the spleen for pathological study. Recently, laparoscopic splenectomy has become the more standard procedure for the spleen for diagnosis and treatment. Here, we report a rare case of SANT diagnosed following laparoscopic splenectomy.

Isolated primary schwannoma arising on the colon: report of two cases and review of the literature / 대한외과학회지

Primary schwannoma of the large intestine is an extremely rare neoplasm. Here, we report two cases of colonic schwannoma confirmed pathologically after laparoscopic resection. A 52-year-old female and a 59-year-old female were referred by their general practitioners to our coloproctologic clinic for further evaluation and management of colonic submucosal masses. Colonoscopies performed in our institution revealed round submucosal tumors with a smooth and intact mucosa in the mid-ascending and descending colon, respectively. Computed tomography (CT) scans showed an enhancing soft tissue mass measuring 2 x 2 cm in the right colon and well-defined soft tissue nodule measuring 1.5 x 1.7 cm in the proximal descending colon, respectively. We performed laparoscopic right hemicolectomy and segmental left colectomy under the preoperative impression of gastrointestinal stromal tumors. Two cases were both diagnosed to be benign schwannoma of the colon after immunohistochemical stains (S-100 (+), smooth muscle actin (-), CD117 (-), and CD34 (-)).

Is Minimally Invasive Gastrectomy Feasible for the Treatment of Multiple Early Gastric Cancer?

PURPOSE: As preoperative diagnostic tools have advanced, the rate of multiple early gastric cancer diagnoses have increased. The author investigated the clinicopathological features of multiple early gastric cancers to elucidate the clinical feasibility of minimally invasive gastrectomy such as laparoscopy or robot assisted gastrectomy for their surgical treatment. METHODS: One thousand one hundred and eighty-five open gastrectomies and 607 laparoscopies or robot-assisted gastrectomies for gastric cancers from January 2003 through August 2009 were retrospectively reviewed. Among them, 844 were diagnosed as early gastric cancers, of which 47 cases had multiple early gastric cancers. Twenty-seven cases underwent open gastrectomy and 20 cases underwent laparoscopy or robot assisted gastrectomy. The author analyzed clinicopathological features in these multiple early gastric cancers. RESULTS: The incidences of multiple early gastric cancers among the early gastric cancers were 5.6%. There were no statistical differences in the clinicopathological parameters except the type of gastrectomy and anastomosis. The distances of both proximal and distal margin show no statistical difference in both groups. The hospital stay was shorter in laparoscopy or robot assisted gastrectomy group (P=0.022). The postoperative complications developed 7 cases in open group and 1 case in laparoscopy or robot assisted gastrectomy group (P=0.046). During the mean follow-up period of 43.8+/-26.4 and 36.2+/-19.8 months, no recurrence was found in both groups. CONCLUSION: Laparoscopy or robot assisted gastrectomy are as acceptable as open methods to obtain a safe surgical margin, and to perform the desirable type of gastrectomy and radical lymph node dissection.

Single Port Laparoscopic Gastric Wedge Resection: Case Reports / 대한내시경복강경외과학회지

Laparoscopic wedge resection for treating a gastric submucosal tumor is a widely accepted and feasible procedure. As the skills for performing laparoscopic surgery have been developed, a great deal of effort has also been given to minimize the size of the abdominal wound and its scar. Some studies have introduced single port laparoscopic surgery for these purposes, but most of these single port laparoscopic surgeries were carried out to perform appendectomy and cholecystectomy. There have been fewer reports on this for gastric surgeries. We report here on 2 cases of single port laparoscopic gastric wedge resection for treating gastric submucosal tumor.

Intraoperative Complications in Laparoscopy- assisted Distal Gastrectomy (LADG) for Gastric Cancer

PURPOSE: A laparoscopy-assisted distal gastrectomy (LADG) has recently become a viable alternative for the treatment of patients with early gastric cancer. Surgeons seeking to undertake, or currently practicing LADG, are concerned about the unpredictable intraoperative events that occur during a LADG. However, little information exists on the intraoperative complications during a LADG. The aims of this study were to investigate the intraoperative complications and identify the factors predictive of intraoperative bleeding during a laparoscopy-assisted distal gastrectomy (LADG), with a lymphadenectomy for gastric cancer greater than D1+beta. METHODS: Of the 219 patients, who underwent a laparoscopy- assisted gastrectomy for gastric cancer by a single surgeon, between April 2003 and January 2006, 128 were enrolled in this study. The operative procedure was divided into 5 steps. Various intraoperative complications, such as bleeding and perigastric organ injuries, occurring during the different operative steps were investigated by reviewing videotapes of the procedures. RESULTS: A total of 839 bleeding events were encountered during the procedure, with a mean of 6.6 per patient. The mean numbers of bleeding events during each step were significantly different, with greater numbers occurring during steps II and IV (P < 0.0001). A multiple logistical regression analysis identified male gender (P=0.002, odds ratio 3.870) and a higher body mass index (P=0.038, odds ratio 1.158) as independent predictors of higher intraoperative bleeding rates. CONCLUSION: Intraoperative bleeding was found to be the most common complication during a LADG for gastric cancer, with greater numbers of bleeding events occurring during steps II and IV. Gender and body mass index were independent covariates associated with the development of intraoperative bleeding during a LADG.

Traumatic Abdominal Wall Hernia (TAWH): A Case Study Highlighting Surgical Management

We report a rare case of traumatic abdominal wall hernia (TAWH) caused by a traffic accident. A 47-year-old woman presented to the emergency room soon after a traffic accident. She complained of diffuse, dull abdominal pain and mild nausea. She had no history of prior abdominal surgery or hernia. We found a bulging mass on her right abdomen. Plain abdominal films demonstrated a protrusion of hollow viscus beyond the right paracolic fat plane. Computed tomography (CT) showed intestinal herniation through an abdominal wall defect into the subcutaneous space. She underwent an exploratory surgery, followed by a layer-by-layer interrupted closure of the wall defect using absorbable monofilament sutures without mesh and with no tension, despite the large size of the defect. Her postoperative course was uneventful.

Surgical Treatment of Primary Small Bowel Volvulus Using Laparoscopy

Small bowel volvulus is a condition that usually occurs secondary to malrotation, congenital bands, postoperative adhesions and internal hernias. However, primary small bowel volvulus in adults is very rare, and this is defined as torsion of all or a large segment of the small intestine and its mesentery in the absence of preexisting etiologic factors. This is relatively prevalent in the adult populations of Central Africa, India and the Middle East, but it rarely occurs in Western European and North American populations and in Far-East Asians, including Koreans. The preoperative diagnosis is difficult because clinical examinations and plain films are of limited diagnostic value. Abdominal CT plays a major role in the preoperative diagnosis of this entity. Proper management of patients with a strangulated obstruction depends on an early and accurate diagnosis, and treatment must be timely to prevent gangrene. Prompt preoperative management and early surgical treatment is essential for a better outcome. We report here on a case of a 49-year-old man who was admitted with severe abdominal pain, and he had no history of previous abdominal operations. He was diagnosed as primary small volvulus by diagnostic laparoscopy, and he was managed using this modality.

The Learning Curve in Laparoscopy Assisted Distal Gastrectomy (LADG) with Systemic Lymphadenectomy for Early Gastric Cancer Considering the Operation Time

PURPOSE: Laparoscopy assisted distal gastrectomy has become a feasible and acceptable surgical technique for treating early gastric cancer. However, there is no report on the learning curve of LADG with a systemic lymphadenectomy for early gastric cancer. The aim of this study is to evaluate the nature of the learning curve for LADG with a systemic lymphadenectomy for early gastric cancer. METHODS: The data from 90 consecutive patients with early gastric cancer who had undergone a LADG with a systemic lymphadenectomy between April 2003 and November 2004 were reviewed. The operation times of 90 consecutive patients were reviewed. Other indicators such as the trans-fusion requirements, postoperative complications, time to first flatus, and postoperative hospital stay were also evaluated. RESULTS: Mean operation time was 227.2 minutes. Of the 22 patients with a submucosal lesion, two patients had one metastatic lymph node, and of the 66 patients with a mucosal lesion, one patient had one metatstatic lymph node. Sixty-seven (74.4%) patients underwent a B-I reconstruction and 79 patients (87.8%) underwent a systemic lymphadenectomy above D1+beta. After the first 10 LADGs, the operative time reached its first plateau (230~240 minutes/operation), and then reached a second plateau (<200 minutes/operation) for the final 30 cases. Although a significant improve-ment in operative time was noted after the first 50 cases, there were no significant differences in the other postoperative outcomes. CONCLUSION: Based on operative time analysis, this study shows that the experience of 50 cases of LADG with systemic lymphadenectomy for gastric cancer are needed to achieve the optimum proficiency.

Continuous Ambulatory Peritoneal Dialysis (CAPD) Catheter Insertion Using the Fluoroscopy and Minimal Skin Incision

PURPOSE: Continuous ambulatory peritoneal dialysis (CAPD) is an important method of performing renal replacement therapy in patients with chronic renal failure. A significant number of complications and catheter failures in CAPD are due to mechanical pro-blems and peritonitis. We describe our experience with CAPD with using fluoroscopy and a minimal incision technique to reduce complications. METHODS: We reviewed 57 CAPD patients at Dong-A University Medical Center from June 2004 to March 2005. All the procedures were standardized and performed by a single surgeon with using a flexible guide wire under aseptic fluoroscopic control through a minimal incision. Antibiotic treatment was done for three days after the surgery. RESULTS: The patients consisted of 30 males and 27 females. The common reasons for CAPD insertion were diabetic nephropathy (25 patients) and hypertension (9 patients). The mean operation time was 52.2+/-15.8 minutes. All the initial procedures were carried out under local anesthesia. Four of the patients needed their catheter repositioned during their postoperative course, which was done under local anesthesia in three cases and under spinal anesthesia in one case. Catheter malfunction occurred in 4 patients, and peritonitis developed in 8 patients (for wound related peritonitis in 1 patient and for catheter related peritonitis in 7 patients). CONCLUSION: Making a minimum incision and catheter insertion under fluoroscopic control for CAPD is a safe and highly effective method to reduce the incidence of catheter related complications. Furthermore, strict patient education is crucial for optimum catheter care, which is closely associated with development of peritonitis in CAPD patients.

The Effects of Obesity for Laparoscopy- Assisted Distal Gastrectomy in Patient with Early Gastric Cancer

Purpose: Laparoscopy-assisted distal gastrectomy (LADG) has recently been accepted as a feasible and acceptable method for early gastric cancer surgery. Surgeons have long suspected that obesity might increase the intra-operative or postoperative complications. We set out to clarify the effects of obesity on LADG for early gastric cancer treatment. METHODS: We retrospectively reviewed 97 patients who had undergone LADG for early gastric cancer between May 1998 and March 2003. The degree of obesity was based on the Body Mass Index (BMI, kg/m2), with patients assigned to two groups: normal BMI (BMI <23 kg/m2) and high BMI (BMI= 23 kg/m2). RESULTS: There were no significant differences between the normal and high BMI groups in terms of patients' characteristics, surgical outcomes and postoperative courses, postoperative complication and operation time. However, there was a significant statistical difference in the operation time among the latter four groups (P=0.004). And the male with high BMI group took particularly a longer operation time than female groups with normal BMI (P=0.006) and high BMI (P=0.013). Conclusion: In LADG patients with early gastric cancer, obesity may affect the operation time, and the male high BMI group takes particularly a longer operation time than the female groups.

Body Mass Index and Outcome of Gastrectomy with D2 Lymphadenectomy

PURPOSE: The effectiveness of D2 lymph node dissection in gastric cancer operation is controversial in Western countries because of the relatively high complication and mortality rates in contrast to those of Japanese studies. A generally high body mass index (BMI) of the European patients was assumed to be one of the major causes for postoperative complication. The aim of this study is to clarify the relationship between patient BMI and operative outcomes. METHODS: We studied 201 consecutive Korean patients who had undergone gastrectomy with D2 lymph node dissection for gastric cancer between Jan 2002 and Apr 2003. They were assigned to four groups according to BMI: group A, with BMI 25 kg/m2. We analyzed differences in the length of operation time, numbers of examined lymph nodes, numbers of transfused patients, postoperative hospital stay, and postoperative complications in the four groups. RESULTS: No significant differences were found with regard to the length of operation time, the numbers of examined lymph nodes, the numbers of transfused patients, the postoperative hospital stay, and the postoperative complications in four groups. CONCLUSION: High BMI was not associated with increased operative risk or morbidity.