ABSTRACT
<p><b>OBJECTIVE</b>To investigate the efficacy and feasibility of duodenojejunal bypass(DJB)on non-severe obese patients with type 2 diabetes mellitus(T2DM).</p><p><b>METHODS</b>The body mass index (BMI), fasting plasma glucose(FPG), 2h-postprandial plasma glucose(2hPG), fasting insulin(F-ins), fasting c-peptide(F-CP), glycated hemoglobin and hypoglycemic agents dose changes were tested in 7 patients with non-severe obese T2DM undergoing DJB, preoperatively and within 24 weeks after surgery during the follow-up. Data were collected and the clinical outcomes of T2DM were analyzed.</p><p><b>RESULTS</b>In 7 cases of non-obese T2DM who underwent DJB, one patient was weaned off hypoglycemic agents with normal FPG, 2hPG and HbA1c postoperatively. Five required significantly lower dosage. No significant improvement in 1 case. Complete remission rate of hyperglycemia was 1/7, effective rate was 6/7, and effective rate of HbA1c was 5/7. No significant changes in BMI were observed between the preoperative and postoperative phases.</p><p><b>CONCLUSION</b>Plasma glucose level can be markedly reduced by duodenojejunal bypass in non-obese T2DM, independent of weight loss, and the mechanism remains unclear.</p>
Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Bariatric Surgery , Methods , Diabetes Mellitus, Type 2 , General Surgery , Duodenum , General Surgery , Follow-Up Studies , Jejunum , General Surgery , Obesity , Treatment OutcomeABSTRACT
<p><b>BACKGROUND</b>Gastrojejunostomy is one of the most frequently used procedures for general surgeons. The creation of anastomosis between various parts of the gastrointestinal tract is a basic technical component and major task in the daily practice of almost all gastrointestinal procedures. This research evaluated a new procedure of making gastrointestinal anastomosis with stent.</p><p><b>METHODS</b>Twenty experimental mini-pigs were randomized into two groups. In stent anastomosis group (SA), the anastomoses were constructed with a poly-levolactic acid stent. In hand-sewn group (HA), the anastomoses were performed with a single-layer continuous suture. Abdominal X-ray with intraluminal contrast was performed on the 10th postoperative day. Five pigs of each group were sacrificed on the postoperative days 3 and 14 to determine anastomotic bursting pressure in situ, hydroxyproline concentration, and histopathological evaluation of the anastomotic sites.</p><p><b>RESULTS</b>There was no intraoperative morbidity or mortality. The median time needed for the sutured anastomosis was (21.7 ± 2.3) minutes and for the stent anastomosis was (11.9 ± 1.9) minutes (P < 0.001). Abdominal X-ray with intraluminal contrast demonstrated normal gas distribution and showed no evidence of leakage or obstruction. Macroscopic appearance at the longitudinal opening of anastomosis was always good in both groups. The median anastomotic bursting pressure was (18.2 ± 1.6) kPa in SA group on postoperative day 3, compared with (11.7 ± 3.2) kPa in HA group (P = 0.003). The anastomotic bursting pressure on day 14 was not significantly different between SA group ((27.1 ± 2.6) kPa) and HA group ((28.3 ± 1.7) kPa) (P = 0.388). The hydroxyproline concentrations were not significantly different.</p><p><b>CONCLUSIONS</b>The stent anastomosis was not considered to be more difficult than a sutured anastomosis. This method is proved to be safe and feasible compared with the traditional hand-sewn method in the porcine model. The method increases early anastomotic strength in this study.</p>
Subject(s)
Animals , Female , Male , Anastomosis, Surgical , Methods , Gastric Bypass , Methods , Hydroxyproline , Metabolism , Stents , SwineABSTRACT
<p><b>OBJECTIVE</b>To evaluate clinical outcomes after laparoscopic total mesorectal excision (TME) combined with intersphincteric resection (ISR) for ultra-low rectal tumors.</p><p><b>METHODS</b>Clinical data of 36 patients with ultra-low rectal tumor undergoing laparoscopic TME combined with ISR were analyzed retrospectively.</p><p><b>RESULTS</b>The median distance from the inferior margin of the tumor to the anal verge was 3.4 (2.0-5.0) cm. There were 33 cases of well/moderately differentiated adenocarcinoma and 3 rectal malignant villous adenoma. There were 16 patients with stage I disease, 15 with stage II A, 3 with stage III A, and 1 with III B. Postoperatively, one patient developed stenosis at the end ileostomy and 3 anastomotic leakage. After a median follow-up of 16(4-49) months, one patient developed local recurrence at the anastomosis and one case died of liver metastasis. In the 19 patients who had a minimum follow-up of one year, the bowel movements frequency ranged from 1-4 times per day, and these patients were able to withhold defecation for more than 5 minutes.</p><p><b>CONCLUSIONS</b>Laparoscopic TME combined with ISR can achieve oncologic clearance, sphincter preservation, and minimal invasiveness for ultra-lower rectal cancer. However, patients selection should be cautious.</p>