During the course of anesthetic administration, appreciate volume of nitrous oxide can move into closed gas spaces. The use of nitrous oxide during abdominal surgery may cause distension of the intestine and make difficulty in operating procedure. We studied 29 patients undergoing elective colorectal surgery and they were classified into two groups -N2O group and Air group, N2O group was administered with air-oxygen-enflurane before peritoneal opening and administered with N2O- oxygen-enflurane after peritoneal opening. Air group was administered with air-oxygen-enflurane throughout the surgery. We measured N2O concentration in the terminal ileum, the degree of distension in the small and large intestine during anesthesia, and the time of postoperative flatulence and feces passage. The N2O concentration in the intestine increased throughout the time course in N2O group. The distension score of the small and large bowel had a tendency to increase in N2O group. There were no significant differences between the two groups in postoperative bowel motility. These results suggest that a long-term N2O administration in patients undergoing colorectal surgery may interfere surgical conditions of the intestine because of the bowel distension.
Anesthesia* ; Colorectal Surgery ; Feces ; Flatulence ; Humans ; Ileum ; Intestine, Large ; Intestines ; Nitrous Oxide

PURPOSE: A multidisciplinary program for early recovery after colorectal surgery has been developed continuously since 2000. The purpose of this study was to evaluate the effects of the standardized postoperative enhanced recovery program (SPERP) after a colorectal resection. METHODS: The patients undergoing laparoscopic colorectal resection for colorectal cancer were cared for by using the SPERP after surgery. The comparison group consisted of patients who had undergone similar surgery before establishment of the SPERP. The two groups were compared with respect to the patients' characteristics, operation methods, operation time, blood loss, amounts of intravenous fluid and intravenous antibiotics, complications, postoperative hospital stay, readmission rate, and reoperation rate. RESULTS: The number of patients being treated with the standardized postoperative recovery program, the standardized group (SG), was 63, and that of the traditional group (TG) was 61. Even though the day of oral feeding (1.02 vs. 2.67 days) was faster in the SG, the day of flatus and defecation was not different between two groups. The postoperative hospital stay in the SG (6.76 days) was significantly shorter than that in the TG (10.43 days). The total amount of intravenous fluid after surgery in the SG was 8,574.75 mL, compared with 19,568.22 mL in the TG. The duration of intravenous antibiotics was 2.69 days in the SG and 7.38 days in the TG (P=0.0001). The rates of complication (27.0% in SG vs. 39.3% in TG), reoperation (3.17% vs. 9.84%), and readmission (7.94% vs. 6.56%) did not increase after implementation of this program. CONCLUSION: The standardized postoperative recovery program reduced the amounts of postoperative intravenous fluid and antibiotics and the postoperative hospital stay without increasing either complications or the readmission rate. A prospective multi-center study of this program is needed.
Anti-Bacterial Agents ; Colorectal Neoplasms ; Colorectal Surgery ; Defecation ; Flatulence ; Humans ; Length of Stay ; Postoperative Complications ; Reoperation

PURPOSE: Although some limitations of conventional laparoscopy have been overcome by the enhanced dexterity of a robotic system, few studies have reported the use of robotic surgery for rectal cancer. This study analyzed prospectively the safety, morbidity, mortality and operation time of a robotic rectal resection for rectal cancer. METHODS: The data of 185 consecutive patients, who had undergone robotic rectal resection for rectal cancer at Korea University Aanam Hospital from July 2007 to April 2011, was analyzed prospectively. The postoperative outcomes and operative times were evaluated. RESULTS: Robotic rectal resection using a da Vinci surgical system was performed on 185 patients. There were 115 low anterior resections, 5 anterior resections, 1 Hartmann's operation, 10 ultra-low anterior resections, 43 intersphincteric resections and 11 abdominoperineal resections. The median hospital stay was 9 days. The overall morbidity rate was 33.4%. There was one conversion to open surgery. The mean passage of flatus was noted on postoperative day 2.0, diet was started on postoperative day 2.3 and the mean postoperative hospital stay was 13.7 days. The mean number of retrieved lymph nodes was 16. The total operation time decreased with increasing operator experience (306 min vs 285 min vs 268 min, p=0.009). CONCLUSION: A robotic rectal resection is feasible and safe for rectal cancer patients. The data showed an acceptable morbidity and mortality rate compared to the short term results of conventional laparoscopic and open surgery reported previously. Nevertheless, the oncologic and functional benefits of robotic colorectal surgery should be evaluated through a large scale study.
Colorectal Surgery ; Conversion to Open Surgery ; Diet ; Flatulence ; Humans ; Korea ; Laparoscopy ; Length of Stay ; Lymph Nodes ; Operative Time ; Prospective Studies ; Rectal Neoplasms

PURPOSE: Familial adenomatous polyposis (FAP) normally appears in the early twenties and needs a restorative total proctocolectomy with ileal pouch-anal anastomosis (TPC/ IPAA). Thus, most patients with FAP are young, in socially active stage, and very concerned about their body image. Vast experience with laparoscopic colorectal surgery led us to perform laparoscopic-assissted TPC/IPAA for patients with FAP with or without cancer, and we evaluated the results from technical and oncologic aspects. METHODS: Seventeen of 20 FAP patients underwent laparoscopic- assisted surgery between July 1996 and June 2004. All procedures were done in a totally laparoscopic, a laparoscopic-assisted, or a hand-assisted laparoscopic fashion. RESULTS: Fifteen patients underwent laparoscopic-assisted TCP/IPAA; two others had a total colectomy with ileorectal anastomosis and a TCP with permanent ileostomy laparoscopically. Eight patients showed coexisting colorectal cancers. The mean operation time was 396.5 min. Patients passed flatus or liquid at the 2.2 post-operative day (POD), resumed meals at the 4th. POD, and were discharged at the 10th. POD. There were no intra-operative complications or open conversions. Post-operative complications occurred in 5 different patients. One patient with colon cancer had multiple hepatic metastases at 11 months after the operation and died at 24 months after the operation. CONCLUSIONS: Laparoscopic-assisted surgery for the patients with FAP was technically feasible and could be an alternative method. The systematized and experienced approach could reduce a operation time to be acceptable. In selected cases and with a vast of experience, coexisting colorectal cancer would not be contraindicated for laparoscopic approach for the treatment of FAP.
Adenomatous Polyposis Coli* ; Body Image ; Colectomy ; Colonic Neoplasms ; Colorectal Neoplasms* ; Colorectal Surgery ; Flatulence ; Humans ; Ileostomy ; Laparoscopy ; Meals ; Neoplasm Metastasis

: Objective: To explore the feasibility and preliminary technical experience of the double-tract reconstruction combined with π-shaped esophagojejunal anastomosis after total laparoscopic proximal gastrectomy (TLPG) in the treatment of adenocarcinoma of esophagogastric junction (AEG). Methods: A descriptive case series study method was used. Clinical data of 12 AEG patients who underwent the double-tract reconstruction combined with π-shaped esophagojejunal anastomosis after TLPG from January 2021 to June 2021 at the Department of General Surgery, First Medical Center, PLA General Hospital were retrospectively analyzed. Among the 12 patients, the median tumor diameter was 2.0 (1.5-2.9) cm, and the pathological stage was T1-3N0-3aM0. All the patients routinely underwent TLPG and D2 lymph node dissection with double-tract reconstruction combined with π-shaped esophagojejunal anastomosis: (1) Double-tract reconstruction combined with π-shaped esophagojejunal anastomosis: mesentery 25 cm away from the Trevor ligament was treated, and an incision of about 1 cm was made on the mesenteric border of the intestinal wall and the right wall of the esophagus, two arms of the linear cutting closure were inserted, and esophagojejunal side-to-side anastomosis was performed. A linear stapler was used to cut off the lower edge of the anastomosis and close the common opening to complete the esophagojejunal π-shaped anastomosis. (2) Side-to-side gastrojejunostomy anastomosis: an incision of about 1 cm was made at the jejunum to mesenteric border and at the greater curvature of the remnant stomach 15 cm from the esophagojejunostomy, and a linear stapler was inserted to complete the gastrojejunostomy side-to-side anastomosis. (3) Side-to-side jejunojejunal anastomosis: an incision of about 1 cm was made at the proximal and distal jejunum to the mesangial border 40 cm from the esophagojejunostomy, and two arms of the linear stapler were inserted respectively to complete the side-to-side jejunojejunal anastomosis. A midline incision about 4-6 cm in the upper abdomen was conducted to take out the specimen, and an abdominal drainage tube was placed, then layer-by-layer abdominal closure was performed. INDICATIONS: (1) adenocarcinoma of esophagogastric junction (Seiwert type II-III) was diagnosed by endoscopy and pathological examination; (2) ability to preserve at least 1/2 of the distal stomach after R0 resection of proximal stomach was evaluated preoperatively. CONTRAINDICATIONS: (1) evaluation indicated distant metastasis of tumor or invasion of other organs; (2) short abdominal esophagus or existence of diaphragmatic hiatal hernia was assessed during the operation; (3) mesentery was too short or the tension was too high; (4) existence of severe comorbidities before surgery; (5) only palliative surgery was required in preoperative evaluation; (6) poor nutritional status. MAIN OUTCOME MEASURES operation time, intraoperative blood loss, postoperative complications, time to first flatus and time to start liquid diet, postoperative hospital stay, operation cost, etc. Continuous variables that conformed to normal distribution were presented as mean ± standard deviation, and those that did not conform to normal distribution were presented as median (Q1,Q3). Results: All the patients successfully completed TLPG with double-tract reconstruction combined with π-shaped esophagojejunal anastomosis, and postoperative pathology showed that no cancer cells were found on the upper incision margin. The operation time was (247.9±62.4) minutes, the median intraoperative blood loss was 100.0 (62.5, 100.0) ml, no intraoperative blood transfusion was required, the incision length was (4.9±1.0) cm, and the operation cost was (55.5±0.7) thousand yuan. The median time to start liquid diet was 1.0 (1.0, 2.0) days, and the mean time to flatus was (3.1±0.9) days. All the patients were discharged uneventfully. Only 1 patient developed postoperative paralytic ileus and infectious pneumonia with Clavien-Dindo classification of grade II. The patient recovered after conservative treatment. There was no surgery-related death. The postoperative hospital stay was (8.3±2.1) days. Conclusion: The double-tract reconstruction combined with π-shaped esophagojejunal anastomosis after TLPG is safe and feasible, which can minimize surgical trauma and accelerate postoperative recovery.
Adenocarcinoma/surgery* ; Anastomosis, Surgical/methods* ; Blood Loss, Surgical ; Esophagogastric Junction/surgery* ; Flatulence ; Gastrectomy/methods* ; Humans ; Laparoscopy ; Retrospective Studies ; Stomach Neoplasms/surgery*

OBJECTIVE: To explore the clinical value of three-dimensional (3D) visualization technique in laparoscopic D3 radical resection of right colon cancer. METHODS: We retrospectively analyzed the clinical data of 73 patients with right colon cancer undergoing laparoscopic D3 radical operation in our hospital between May, 2019 and March, 2021. Among these patients, 41 underwent enhanced CT examination with 3D visualization reconstruction to guide the actual operation, and 32 underwent enhanced CT examination only before the operation (control group). In 3D visualization group, we examined the coincidence rate between the 3D visualization model and the findings in surgical exploration of the anatomy and variations of the main blood vessels, supplying vessels of the tumor, and the tumor location, and the coincidence rate between the actual surgical plan for D3 radical resection of right colon cancer and the plan formulated based on the 3D model. The operative time, estimated blood loss, unexpected injury of blood vessels, number of harvested lymph nodes, mean time of the first flatus, complications, postoperative hospital stay and postoperative drainage volume were compared between the two groups. RESULTS: The operative time was significantly shorter in 3D visualization group than in the control group (P < 0.05). The volume of blood loss, proportion of unexpected injury of blood vessel, the number of harvested lymph nodes, time of the first flatus, proportion of complications, postoperative hospital stay and postoperative drainage volume did not differ significantly between the two groups (P > 0.05). In the 3D visualization group, the 3D visualization model clearly displayed the shape and direction of the colon, the location of the tumor, the anatomy and variation of the main blood vessels and the blood vessels supplying the cancer, and showed a coincidence rate of 100% with the findings by surgical exploration. The surgical plan for D3 radical resection of right colon cancer was formulated based on the 3D model also showed a coincidence rate of 100% with the actual surgical plan. CONCLUSION The 3D visualization reconstruction technique allows clear visualization the supplying arteries of the tumor and their variations to improve the efficiency, safety and accuracy of laparoscopic D3 radical resection of right colon cancer.
Colonic Neoplasms/surgery* ; Flatulence/surgery* ; Humans ; Imaging, Three-Dimensional ; Laparoscopy/methods* ; Lymph Node Excision/methods* ; Postoperative Complications ; Retrospective Studies ; Treatment Outcome

Objective: To assess the effect of jejunal feeding tube placement on early complications of laparoscopic radical gastrectomy in patients with incomplete pyloric obstruction by gastric cancer. Methods: This was a retrospective cohort study. Perioperative clinical data of 151 patients with gastric antrum cancer complicated by incomplete pyloric obstruction who had undergone laparoscopic distal radical gastrectomy from May 2020 to May 2022 in the First Affiliated Hospital of Nanchang University were collected. Intraoperative jejunal feeding tubes had been inserted in 69 patients (nutrition tube group) and not in the remaining 82 patients (conventional group). There were no statistically significant differences in baseline characteristics between the two groups (all P>0.05). The operating time, intraoperative bleeding, time to first intake of solid food, time to passing first flatus, time to drainage tube removal, and postoperative hospital stay, and early postoperative complications (occurded within 30 days after surgery) were compared between the two groups. Results: Patients in both groups completed the surgery successfully and there were no deaths in the perioperative period. The operative time was longer in the nutritional tube group than in the conventional group [(209.2±4.7) minutes vs. (188.5±5.7) minutes, t=2.737, P=0.007], whereas the time to first postoperative intake of food [(2.7±0.1) days vs. (4.1±0.4) days, t=3.535, P<0.001], time to passing first flatus [(2.3±0.1) days vs. (2.8±0.1) days, t=3.999, P<0.001], time to drainage tube removal [(6.3±0.2) days vs. (6.9±0.2) days, t=2.123, P=0.035], and postoperative hospital stay [(7.8±0.2) days vs. (9.7±0.5) days, t=3.282, P=0.001] were shorter in the nutritional tube group than in the conventional group. There was no significant difference between the two groups in intraoperative bleeding [(101.1±9.0) mL vs. (111.4±8.7) mL, t=0.826, P=0.410]. The overall incidence of short-term postoperative complications was 16.6% (25/151). Postoperative complications did not differ significantly between the two groups (all P>0.05). Conclusion: It is safe and feasible to insert a jejunal feeding tube in patients with incomplete outlet obstruction by gastric antrum cancer during laparoscopic radical gastrectomy. Such tubes confer some advantages in postoperative recovery.
Humans ; Stomach Neoplasms/etiology* ; Pyloric Antrum ; Retrospective Studies ; Flatulence/surgery* ; Treatment Outcome ; Postoperative Complications/etiology* ; Laparoscopy ; Gastrectomy/adverse effects* ; Length of Stay ; Pyloric Stenosis/surgery*

PURPOSE: The present study aimed to investigate the safety and the feasibility of laparoscopic colorectal surgery performed by a surgeon during a learning period. METHODS: Between April and December 2008, 101 consecutive patients with colorectal cancers underwent laparoscopic surgery by one colorectal surgeon who previously had no experience with laparoscopic colorectal surgery. Standard laparoscopy with a lymphadenectomy using a 5-port technique was performed according to the tumor location. The patients were divided into two chronological groups: 50 cases early in learning period (early cases) and 51 cases later in the learning period (late cases). RESULTS: The operations were 29 right hemicolectomies, 9 left hemicolectomies, 18 anterior resections, 35 low anterior resections, 6 intersphincteric resections, 2 abdominoperineal resections, and 2 Hartmann's operation. There were 7 conversions (6.9%). The median operating time was 205 (range, 95-385) min, and the median blood loss was 258 (50-800) mL. The median times to flatus per anus and to feeding of soft diet were 2 (1-5) and 4 (2-13) days, respectively. The median hospital stay was 9 (6-27) days. There were 21 postoperative complications, including 7 anastomotic complications (3 leakages, 3 abscesses, and 1 stenosis). The median number of lymph nodes harvested was 20 (4-65). The operating time, blood loss, and complication rates were significantly decreased in the late group. CONCLUSION: Our initial experience with laparoscopic colorectal surgery appears to have acceptable perioperative results and short-term oncologic outcomes, which improved with the experience of the surgeon.
Abscess ; Anal Canal ; Colorectal Neoplasms ; Colorectal Surgery ; Diet ; Flatulence ; Humans ; Laparoscopy ; Learning ; Learning Curve ; Length of Stay ; Lymph Node Excision ; Lymph Nodes ; Postoperative Complications

PURPOSE: In Korea, the number of laparoscopy-assisted distal gastrectomies for early gastric cancer patients has been on the increase. Although minimally invasive surgery is more beneficial, no reported case of a total laparoscopic gastrectomy has been reported because of difficulty with intracorporeal anastomosis. This study attempts, through our experience, to determine the safety and feasibility of a total laparoscopic gastrectomy with various types of intracorporeal anastomosis using laparoscopic linears stapler in treating early gastric carcinomas. MATERIALS AND METHODS: We investigated the surgical results and clinicopatholgical characteristics of 81 patients that underwent a totally laparoscopic distal gastrectomy at our department between June 2004 and May 2007. The intracorporeal anastomoses were performed by using laparoscopic linear staplers. RESULTS: The mean operative time was 287 minutes, the mean anastomotic time was 40 minutes, and the mean number of laparoscopic linear staplers used for an operation was 7.5. The mean time to the first flatus, the first food intake, and discharge from hospital was 2.9, 3.6, and 10.3 days respectively. There were 11 cases of postoperative complications, but no case of postoperative mortality or conversion to an open procedure. In 75 patients with an adenocarcinoma, the mean number of lymph nodes harvested was 38.1 and the stage distribution was as follows: stage I, 72 patients; stage II, 2 patients; stage IV, 1 patient. During the mean follow-up period of 14 months, 5 patients died of other causes and there were no cases of cancer recurrence. CONCLUSION: A total laparoscopic gastrectomy with intracorporeal anastomosis by using a laparoscopic linear stapler was found to be safe and feasible. We were able to obtain acceptable surgical outcomes in terms of minimal invasiveness.
Adenocarcinoma ; Conversion to Open Surgery ; Eating ; Flatulence ; Follow-Up Studies ; Gastrectomy* ; Humans ; Korea ; Laparoscopy ; Lymph Nodes ; Mortality ; Operative Time ; Postoperative Complications ; Recurrence ; Stomach Neoplasms ; Surgical Procedures, Minimally Invasive

PURPOSE: In Korea, the number of laparoscopy-assisted distal gastrectomies for early gastric cancer patients has been increasing lately. Although minimally invasive surgery is more beneficial, no reported case of a totally laparoscopic distal gastrectomy has been reported because of difficulty with intracorporeal anastomosis. This study attempts, through our experiences, to determine the feasibility of a totally laparoscopic distal gastrectomy using an intracorporeal gastroduodenostomy in treating early gastric carcinoma. MATERIALS AND METHODS: We investigated surgical results and clinicopatholgic characteristics of eight(8) patients with an early gastric carcinoma who underwent a totally laparoscopic distal gastrectomy at the Department of Surgery, Our Lady of Mercy Hospital, The Catholic University of Korea, between June 2004 and September 2004. The intracorporeal gastroduodenostomy was performed with a delta-shaped ananstomosis by using only laparoscopic linear staplers (Endocutter 45 mm; Ethicon Endosurgery, OH, USA). RESULTS: The operative time was 369.4+/-62.5 minutes (range 275~65 minutes), and the anastomotic time was 45.1+/-14.4 minutes (range 32~0 minutes). The anastomotic time was shortened as surgical experience was gained. The number of laparoscopic linear staplers for an operation was 7.1+/-0.6. The number of lymph nodes harvested was 31.9+/-13.1. There was 1 case of transfusion and no case of conversion to an open procedure. The time to the first flatus was 2.8+/-0.5 days, and the time to the first food intake was 4.1+/-0.8 days. There were no early postoperative complications, and the postoperative hospital stay was 10.0+/-3.9 days. CONCLUSION: A totally laparoscopic distal gastrectomy using an intracorporeal gastroduodenostomy with a delta-shaped anastomosis is technically feasible and can maximize the benefit of laparoscopic surgery for early gastric cancer.
Conversion to Open Surgery ; Eating ; Flatulence ; Gastrectomy* ; Humans ; Korea ; Laparoscopy ; Length of Stay ; Lymph Nodes ; Operative Time ; Postoperative Complications ; Stomach Neoplasms ; Surgical Procedures, Minimally Invasive