Laparoscopic distal gastrectomy with intracorporeal handsewn Billroth-I anastomosis (ICHSA)
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The number of cases of laparoscopic surgery has been increasing. Lymph node dissection has been standardized, and the enlarged view provided by laparoscopes allows for the procedure to be performed successfully entirely within the abdominal cavity, but many cases of reconstruction using the Billroth-I method are performed under direct vision through a small incision. In this study, by placing an anchor thread on a suture line on the lesser curvature of the stomach, we simplified the procedure for handsewn anastomosis and safely performed gastroduodenal anastomosis at low cost to obtain good results.
From January 2009 to December 2010, we performed handsewn gastroduodenal anastomosis in 18 cases. After performing lymph node dissection, the duodenum and the stomach were separated using an automatic stapling device. Anchor sutures were placed on the suture line of the lesser curvature of the stomach. First, the seromuscular layer of the stomach and the seromuscular layer of the duodenum were sutured by performing interrupted suturing using an extracorporeal knot-tying method. With the stomach and the duodenum in a fixed state, the anastomosis area was opened. The thread of the anchor suture was pulled toward the abdominal wall, and then all layers of the stomach and the duodenum at the posterior wall were continuously sutured. Similarly, for the anterior wall, all layers were continuously sutured from the lesser curvature toward the greater curvature.
We performed this anastomotic procedure in 18 patients with early gastric carcinoma. The mean time required for the anastomosis was 64.6 ± 17.1 min, and the estimated blood loss was 53.1 ± 91 g. All operations were curative, and the mean number of retrieved lymph node was 27.1 ± 10.8. A nasogastric tube was removed on the first or second day. An upper gastrointestinal series performed on postoperative days 5–6 showed no anastomotic leakage and normal transit. Oral intake was started on days 6–7. Postoperative complications included one case of a ruptured suture, but this was resolved through a conservative approach. There was no mortality. Postoperative endoscopy revealed that the anastomosis area was extremely soft, and no abnormalities were observed. Moreover, the only costs related to the anastomosis were for the thread and needles, and although more time was required compared with mechanical anastomosis, the cost was extremely low.
We performed gastroduodenal anastomosis under a total laparoscopic approach by handsewn. This method is economical, because it does not require the use of machinery for anastomosis, and the duodenal stump is short. We believe that this method, which can be performed in a similar manner even for obese patients, can be used as a standard method of anastomosis.
KeywordsIntracorporeal handsewn anastomosis Gastric cancer Billroth-I anastomosis
A Billroth-I gastrectomy was performed and followed by a handsewn gastroduodenostomy, so Billroth-I anastomosis with handsewn sutures has been widely accepted until now. However, in recent years, laparoscope-assisted surgery for early cancer has been increasing, and in a laparoscopic distal gastrectomy, the method in which a small incision is made at the time of reconstruction is common, which is referred to as laparoscope-assisted surgery [1, 2]. There are various methods of anastomosis for performing mechanical anastomosis entirely within the abdominal cavity, and each method requires at least three or six automatic suture devices [3, 4, 5]. Handsewn anastomosis under a total laparoscopic approach was first reported by Takiguchi et al. , but due to the large amount of time required for anastomosis and the complexity of the procedure, it is currently not widely performed. In this study, by improving the procedure and placing an anchor thread on a suture line on the lesser curvature of the stomach, we were able to perform handsewn anastomosis easily and entirely within the abdominal cavity and we safely performed handsewn gastroduodenal anastomosis at a low cost to obtain good results. We herein report our findings.
Patients and methods
From January 2009 to December 2010, we performed handsewn gastroduodenal anastomosis in 18 cases (10 males and 8 females) at our facility. Before surgery, we prepared images of the angioarchitecture of the celiac artery by conducted gastric endoscopic examinations, gastric fluoroscopy, and three-dimensional CT examinations.
Anastomosis was performed for two layers of the posterior wall and one layer of the anterior wall. After lavaging the abdominal cavity, a closed-end drain was inserted in the posterior surface of the anastomosis area.
Postoperative endoscopy revealed that the anastomosis area was extremely soft, and no abnormalities were observed (Fig. 9). Moreover, the only costs related to the anastomosis were for the thread and needles, and although more time was required compared to mechanical anastomosis, the cost was extremely low. The mean duration of hospitalization after surgery was 21.7 (range, 11–37) days.
Laparoscopic surgery is understood as a very minimally invasive procedure in the various fields of surgery. Total laparoscopy is close to being the established procedure for laparoscopic lymph node dissection, particularly for treating gastric cancer. However, it is difficult to say that methods for reconstruction after resection have reached a level similar to laparotomy. Complications of LADG, including hemorrhage, intraperitoneal abscess, pancreatic fistula, ileus, respiratory complications, and wound infection, account for up to 1%, whereas complications regarding reconstruction for ruptured sutures and stenosis of the anastomotic part, etc., account for 1 to 6% [7, 8, 9, 10, 11, 12]. This indicates the difficulty of performing anastomosis in laparoscopic surgery.
In endoscopic surgery, the method of performing a handsewn gastroduodenostomy by making a small incision in the upper abdomen after a distal gastrectomy is commonly performed [1, 2]. However, in recent years, anastomosis using automatic suturing instruments has been mainly used for Billroth-I intracorporeal anastomosis, including a square suturing method developed by Tanimura et al.  a hand-assisted method [14, 15, 16], an overlap method developed by Uyama et al.  and δ anastomosis reported by Kanaya et al. .The disadvantages of mechanical anastomosis are characterized by the fact that it is affected by the degrees of freedom of the duodenum and that many automatic suturing instruments (namely 3–6) are used. However, the anastomotic opening is large, the procedure is simple, and the duration of anastomosis is short.
Since Taniguchi et al.  reported a case of intraperitoneal anastomosis under a total laparoscopic approach, there have been no reports of laparoscopic handsewn anastomosis [1, 14]. Handsewn gastroduodenal anastomosis has been avoided due to the complicated nature of the procedure. However, in recent years, high-definition laparoscopes have become widespread, and the enlarged views obtained with these laparoscopes have reduced the stress experienced by operators. Furthermore, the field of vision in the tangential direction can be improved by pulling the lesser curvature of the stomach toward the abdominal wall with anchor suture threads, and handsewn gastroduodenal anastomosis can be performed safely by adjusting the position of the port. Furthermore, handsewn sutures were not affected by the degree of freedom of the duodenum, and during anastomosis, due to the pneumoperitoneum pressure, there was almost no leakage of digestive fluid into the abdominal cavity. The postoperative endoscopy and the findings of fluoroscopy performed using a water-soluble contrast agent revealed that, because suturing instruments based on staplers were not used, the anastomosis area was soft and highly flexible, and it was believed that there was little stenosis of the anastomosis area after surgery. Although there are reports that laparoscopic surgery requires a shorter duration of hospitalization and is more economical and superior to abdominal surgery , because many instruments are used for anastomosis, it is not always economically superior. However, although handsewn anastomosis involves a high level of technical difficulty and many problems, including the need to perform knot-tying procedures, such as extracorporeal knot-tying and intracorporeal knot-tying, the stress experienced by operators can be reduced by using a high-definition laparoscope. Moreover, there are many advantages to handsewn anastomosis, including the absence of use of instruments for anastomosis and the safety of the procedure. Furthermore, cosmetically, a small 3 cm incision in the umbilicus is sufficient for extracting the stomach. We have treated 18 cases at our hospital, and although time was required to perform handsewn gastroduodenal anastomosis in the early cases, it is believed that the surgery time can be reduced if the procedures for anastomosis are standardized [16, 17, 18]. We plan to study and report further cases in the future.
Anastomosis for a laparoscopic distal gastrectomy was intracorporeally performed with no use of automatic suturing instruments. By making adjustments to these procedures, anastomosis can be performed at a level substantially similar to conventional abdominal surgery. Moreover, although we have only treated 18 cases, it is believed that handsewn anastomosis is a useful option for laparoscopic Billroth-I reconstruction considering both cost and safety.
Katsuichi Matsuo, Hideo Shimura, Shinnosuke Tanaka, Masahiko Nakano, Tatsuya Hashimoto, Daibou Kojima, Yuichi Yamashita have no conflicts of interest or financial ties to disclose.
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