Placement of self-expanding nitinol stents is safe and has a good long-term palliative effect on dysphagia in patients with malignant esophageal strictures.

A self-expanding esophageal nitinol stent was implanted under fluoroscopic guidance in 40 patients with malignant esophageal strictures and clinically significant dysphagia. The strictures were caused by squamous cell carcinoma (n = 14), adenocarcinoma (n = 12), recurrent anastomotic carcinoma (n = 8), and mediastinal tumors (n = 6). Eight stents were balloon dilated to maximum diameter immediately after insertion. Sixteen stents self-expanded to maximum diameter within 24 hours, and the other stents expanded to maximum diameter during further observation. There were no serious stent-related complications, and the dysphagia was reduced considerably in all patients immediately after stent insertion. Persistent tumor bleeding occurred in two patients, and ingrowth of tumor into the stent was seen in eight patients. Two stents occluded due to tumor ingrowth but were successfully recanalized with endoscopic laser coagulation. At the end of the study, 28 patients were dead with a mean survival of 2.9 months (range, 0.1-7.0 months), and 12 patients were alive with a mean follow-up of 8.8 months (range, 4.0-15.0 months).

The reaction of the normal esophageal wall to inserted self-expanding nitinol stents was studied in pigs. An inflammatory reaction with increasing fibrotic activity and degeneration of the muscular layers in the esophageal wall was demonstrated. Five patients with severe dysphagia secondary to benign esophageal strictures also underwent insertion of self-expanding nitinol stents. All of the stents expanded completely, with subsequent regression of dysphagia. One treated esophagus was resected and showed deep implantation of the stent meshwork in the esophageal wall. Significant stenoses secondary to tissue hyperplasia, located at the edges of the stent, occurred in two patients. These results show that self-expanding nitinol stents may be used for palliation of dysphagia in patients with benign esophageal strictures. Because of the observed reactions in the esophageal wall, such treatment should be restricted to selected patients until more experience has been gained.

ObjectiveTo evaluate prospectively the effect of bilateral thoracoscopic splanchnicectomy on pancreatic pain and function. Summary Background DataSevere pain is often the dominant symptom in pancreatic disease, despite a wide variety of methods used for symptom relief. Refinement of thoracoscopic technique has led to the introduction of thoracoscopic splanchnicectomy in the treatment of pancreatic pain. MethodsForty-four patients, 23 with pancreatic cancer and 21 with chronic pancreatitis, were included in the study and underwent bilateral thoracoscopic splanchnicectomy. Effects on pain (visual analogue scale) and pancreatic function (standard secretin test, basal serum glucose, plasma insulin, and Cpeptide) were measured. ResultsFour patients (9%) required thoracotomy because of bleeding. There were no procedure-related deaths. The mean duration of follow-up was 3 months for cancer and 43 months for pancreatitis. Pain relief was evident in the first postoperative week and was sustained during follow-up, the average pain score being reduced by 50%. All patients showed a decrease in consumption of analgesics. Neither endocrine nor exocrine function was adversely affected by the procedure. ConclusionsBilateral thoracoscopic splanchnicectomy is beneficial in the treatment of pancreatic pain and is not associated with deterioration of pancreatic function.Chronic pancreatitis and pancreatic cancer are both associated with severe pain and impaired pancreatic function. Ideal treatment options would have a limited risk of drug addiction and would leave the functional capacity of the gland unaffected. Recent advances in laparoscopic technique also include developments in the field of thoracoscopy. The first report on successful thoracoscopic splanchnicectomy for pancreatic pain was published as recently as 1993.1 The rationale for neurotomy in this symptom is based on the fact that sensory nerves from the pancreas run along the hepatic, splenic, and superior mesenteric arteries to the semilunar ganglion, where they become incorporated in the greater and lesser splanchnic nerves, which arise from the 5th to the 11th thoracic ganglia on both sides of the vertebrae. Afferent sympathetic fibers follow the same route, whereas extrinsic parasympathetic innervation is supplied by the vagus. Thoracoscopic splanchnicectomy has targeted the greater splanchnic nerve. 1It is well established that exocrine pancreatic secretion is under neurohormonal control.2 Neurotransmitters and hormones interact in a complex manner, so it is difficult to differentiate the relative influence of each factor. Truncal vagotomy and the administration of atropine dramatically decrease the pancreatic bicarbonate and enzyme responses to hormonal stimulation and to intraduodenal fat, protein, or acid.3 There are suggestions that the sympathetic nervous system inhibits pancreatic exocrine secretion. 4,5 Splanchnicectomy by retroperitoneal, intraperitoneal, and transhiatal approaches, transthoracic left splanchnicectomy combined with truncal vagotomy, and pe...

BackgroundFor many years there has been a debate as to which is the method of choice in treating patients with esophageal perforation. The literature consists mainly of small case series. Strategies for aiding patients struck with this disease is changing as new and less traumatic treatment options are developing. We studied a relatively large consecutive material of esophageal perforations in an effort to evaluate prognostic factors, diagnostic efforts and treatment strategy in these patients.Methods125 consecutive patients treated at the University Hospital of Lund from 1970 to 2006 were studied retrospectively. Prognostic factors were evaluated using the Cox proportional hazards model.ResultsPre-operative ASA score was the only factor that significantly influenced outcome. Neck incision for cervical perforation (n = 8) and treatment with a covered stent with or without open drainage for a thoracic perforation (n = 6) had the lowest mortality. Esophageal resection (n = 8) had the highest mortality. A CAT scan or an oesophageal X-ray with oral contrast were the most efficient diagnostic tools. The preferred treatment strategy changed over the course of the study period, from a more aggressive surgical approach towards using covered stents to seal the perforation.ConclusionPre-operative ASA score was the only factor that significantly influenced outcome in this study. Treatment strategies are changing as less traumatic options have become available. Sealing an esophageal perforation with a covered stent, in combination with open or closed drainage when necessary, is a promising treatment strategy.