經(jīng)口經(jīng)食管內(nèi)鏡隧道技術(shù)對(duì)腹主動(dòng)脈區(qū)域相關(guān)疾病診治的可行性研究
[Abstract]:Background and purpose: in recent years, endoscopic therapy has developed rapidly. The emergence of endoscopic tunnel technology has made many diseases which had previously been treated by surgical or endoscopic surgery into the scope of endoscopic treatment, with no difference in curative effect and surgery, and with less complications and less trauma. Endoscopic myotomy (peror Al endoscopic myotomy, POEM), since its report in 2010, has been widely used worldwide because of its good clinical therapeutic effects, high remission rate, low recurrence rate, and small trauma in surgical Heller surgery. Endoscopic submucosal tunneling (Submucosal tunnel endoscopic resection, STER) is widely carried out in the world. On the basis of POEM, endoscopic tunnel technology is extended to the treatment of the gastrointestinal myometrium, and the curative effect is accurate. This method is superior to surgery and thoracoscopy. Why endoscopy tunnel technology has such a good curative effect while having less hair and other advantages? Mainly because of endoscopy Tunnel technique can effectively prevent the interlacing of the digestive tube and the outer cavity caused by endoscopic surgery for pathological changes of the inherent muscularis lateral lesions or inherent muscularis, and avoid the gas in the digestive canal, and the liquid directly enters the outer space of the digestive canal to achieve the purpose of treating the lesions and preventing perforation. Natural orifice transluminal endoscopic surgery (NOTES) is a kind of operation method based on the natural cavity of human body, such as esophagus, stomach, rectum, vagina, etc., with soft endoscopy, without surgical incision. But there are several bottlenecks in the development of NOTES operation, first of all, the difficulty of the entrance suture is difficult, and the next is the difficulty of the entrance suture. In the digestive tract, the fluid enters the abdominal cavity to cause infection, and then the soft endoscope enters the abdominal cavity without clear anatomical location and is easy to lose direction; the above problems have been stranded by endoscopy scholars. If these problems can not be solved well, the development of NOTES technology will be limited to a large extent. Combined endoscopic tunnel technology for NOTES hands The operation will solve the difficult problem of closed entrance. Only a few metal clips can be used to complete the artificial entrance of the esophagus. And because the entrance of the tunnel is higher (in the middle and lower segment of the esophagus), the fluid inflow in the stomach can be prevented effectively. Comparing with the anatomical structure in vitro, it can better understand the anatomical structure of the abdominal cavity, and to some extent solve the problem that the endoscopy is easy to get lost in the abdominal cavity. The technique of laparoscopy is very mature, but the region of the posterior and abdominal aorta is the most difficult part of the laparoscopic operation, and the use of digestive endoscopy is penetrating. The posterior wall of the stomach can reach the area directly. In theory, the operation is simpler, direct and easier to operate. This topic is studied in four parts. The first chapter is to find a best method of animal operation and the best way to establish tunnel under the endoscope. In the second chapter, we studied the situation of the endoscopic identification of the anatomical structure in the abdominal cavity; the third chapter studied the operation. The fourth chapters use the results of the previous chapters to apply endoscopic tunnel technique to penetrate the posterior wall of the cardia and gastric fundus into the abdominal cavity, including paraplastic paraplastic ganglion lesion, partial hepatectomy, partial splenectomy, partial retroperitoneal resection, and early gastric carcinoma after ESD. The purpose of this study is to prove that transesophageal endoscopic tunnel technique is safe and feasible for the diagnosis and treatment of abdominal aorta diseases, and can be applied to clinical diagnosis and treatment in the future. Head. The first group was a non preoperative positioning group. The posterior wall of the esophagus was set up to the 2cm place below the cardia. The intraperitoneal muscle layer and serous layer were cut into the abdominal cavity. The second group was Milan location group, and 1:2 Milan saline injection was injected into the submucosa of the posterior wall of the cardia. The posterior wall of the esophagus was located to the marker below the cardia, and the intrinsic myometrium was cut and the myometrium was cut. The serous layer entered the abdominal cavity. Compared the structural contrast map of 3 cases into the abdominal cavity in the above 2 groups, and dissection of the abdominal contrast between the pigs and the pigs, and observed the difference between 3 cases in each group. The difference was excellent. The study of the way of entry: 9 pigs, 3 groups, 3 heads in each group. The first group, submucosa tunnel to the cardia under the posterior wall of the esophagus under the supine position, was set up under the supine position. In square 2cm, the intraperitoneal and serous layers were cut into the abdominal cavity to identify the intraperitoneal anatomy. In the second group, the left side of the esophagus was located on the right wall of the esophagus to establish the tunnel to the small side of the gastric fundus, and the intraperitoneal and serous layers were cut into the abdominal cavity to identify the intraperitoneal anatomy. The third group, the supine right shoulder elevation was located right in the right esophagus. The posterior wall established the tunnel to the posterior wall of the small flexural side of the cardia, incised the intraperitoneal and serous layer into the abdominal cavity to identify the intraperitoneal anatomy. The above three groups realized that the endoscopic operation was difficult and the endoscope entered the abdominal cavity to identify the abdominal anatomy. A group of fewer tissues could complete the operation. (3) the study of the operation of the surgery. (3) the study of myotomy: 6 pigs were taken, 2 groups, 3 heads in each group. The first group was the transverse myotomy group, the muscle layer was cut through the open muscle layer at the end of the tunnel, and the endoscopy entered the abdominal cavity. The second groups were longitudinal myotomy group, the myotomy at the end of the tunnel, and the endoscopy into the abdominal cavity. The third groups were in the abdominal cavity. In the progressive longitudinal muscle incision group, the myotomy length, the exposure of the endoscopic field after myotomy and the freedom of the endoscopy into the retroperitoneal mirror were compared between the three experimental groups, the length of the endoscopic field and the degree of freedom of the endoscopy into the retroperitoneal mirror. A group of second chapters with short length of myotomy, good exposure of the visual field, small trauma of the myometrium, and a good degree of freedom of the mirror body were compared. In the first chapter, the best way to simulate the operation on the porcine corpse, after the endoscope enters the abdominal aorta around the abdominal aorta, observe the image under the endoscope and dissection the anatomical structure of the porcine celiac to make a contrast, and get a good contrast between the endoscope image and the anatomical image, and make a good experimental basis for the following living animal experiment. Third chapters The study of complications: (1) the study of gas related complications: the experiment was divided into three groups: no exhaust group, pneumoperitoneum and puncture and exhaust group, the best endoscopy was selected to enter the abdominal cavity, the endoscopy without exhaust group was continued in the abdominal cavity, the pneumoperitoneum was connected to the pneumoperitoneum by endoscopy and the PCO2 was adjusted to maintain the 12-15mmHg, and the endoscopy of the puncture exhaust group was continuously delivered. Gas, puncture and exhaust in the abdomen with syringe needle and intraperitoneal injection of gas 90min, observe the life signs of the experimental pigs in the operation, such as the death time of the experimental pigs. The experiment is divided into two groups, no treatment group and special treatment group. The 2 groups of experimental pigs are before the operation, after the operation, 24h, 48h, 72h and one week to test the body temperature, the venous blood tests the blood routine, endoscopy A week after the operation, the abdominal infection was observed and the experimental pigs were killed and the abdominal anatomy was observed in the abdominal cavity. Fourth chapter fourth: select 9 experimental pigs to enter the experimental pig abdominal cavity with the best approach, routine abdominal puncture and exhaust, simulated partial liver, splenic resection, paraplastic paraplastic ganglion damage, the observation of the tail around the pancreas and the retroperitoneum area Partial tissue resection and dissection of gastric wall lymph node dissection. After operation, fasting and prohibiting water, using antibiotics to observe the survival of experimental pigs, 3 days after feeding, were sacrificed and observed in the abdominal cavity. Results: the first chapter: (1) 3 cases in the Meilan location group were almost the same, but there were relatively large differences without the orientation group. Secondly, the supine right shoulder was carried out. High position into the mirror, endoscope from the right posterior wall of the cardia into the abdominal cavity, the large blood vessels and important organs of the stomach wall are few, it is not easy to cause the injury, and the entrance of the tunnel is not at the lowest position, the fluid in the stomach is not easy to enter the tunnel to lead to the abdominal pollution. Although the whole layer of myotomy can guarantee the state of direct mirror body, the endoscopy has a good degree of freedom, but it has great damage to the myometrium of the digestive tract and is not conducive to the healing. The gradual longitudinal incision of the intrinsic myomeendoscopy is good, and the layer by layer is more beneficial to the discovery of the muscle layer and the blood vessels outside the stomach wall, and the degree of freedom of the endoscope is better after entering the abdominal cavity. It is not easy to automatically flip the mirror body, it is the best way of muscle incision. The second chapter: through several experiments, a certain knowledge of the anatomical position of the endoscope is obtained, and the foundation for the follow-up experiment is laid. Third chapters: (1) the study of gas related complications: endoscopy abdominal continuous gas delivery, abdominal puncture with one or more 20ml injection needles to maintain abdominal pressure The force equivalent to the pneumoperitoneum control abdominal pressure 15mmHg, can ensure the stable life signs of the experimental pigs in the operation, no exhaust group experimental pigs in the abdominal cavity after a certain degree of gas injection after a certain degree of death. 2. Abdominal infection study: by comparing the survival of the 2 experimental pigs, postoperative leukocyte count, the abdominal tissue adhesion and exudation after death, and other conditions, and other conditions. The infection of the experimental pigs in the treatment group was lighter than that in the non treatment group, and the survival state was good after the operation. Fourth chapters: (1) the simulated partial splenectomy experiment pigs died after operation. 2. The rest of the simulated operation pigs were safe and successful implementation of the simulated operation. The experimental pigs survived well after three days, and there were no other parts except the surgical site. Injury and destruction, but the operation part of the tissues have different degrees of adhesion. 3. Limited to the present endoscopic instruments, it is impossible to carry out a larger intraperitoneal endoscopy. (4) the esophagus building tunnel can not be used again because of scar repair. Conclusion: Milan location before operation, lying on the back of the right shoulder to establish the submucosal tunnel to the fundus of the gastric cardia The intraperitoneal and serous layer of wall Meilan location is gradually cut into the intraperitoneal cavity and the 20ml syringe is punctured and deflated. Partial liver resection, paraplastic paraplastic ganglion lesion, posterior peritoneum tissue resection and gastric parietal lymph node dissection are feasible.
【學(xué)位授予單位】:中國(guó)人民解放軍醫(yī)學(xué)院
【學(xué)位級(jí)別】:博士
【學(xué)位授予年份】:2016
【分類號(hào)】:R543.1
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