Objective: To study the nursing of patients with morbid obesity treated with laparoscopic vertical banded gastroplasty (LVBG). Methods: Before operation, obese degree, obesity-related conditions and mental states were examined routinely. Monitoring of respiratory tract, observing operative complications and instructing of diets were done after operation. Results: Among 6 patients, 5 were at the third degree of obese, one was at second. In obesity-related conditions, 4 patients had hypertension and acantha derma, 1 had arthritis, and all had respiratory sleeping syndrome. The operations were all successful. The food amount food and body weight both decreased significantly 1 month after operation. The common operative complications were mild bleeding (1 case), shoulder-back pain (1 case), nausea and vomiting (5 cases). Diet principle was high protein, low energy, liquid food was the first choice. Conclusion: Observing and preventing respiratory sleeping syndrome are the main points of postoperative cares. Instructing patients to establish correct diet habit is the key to reach the best efficacy of LVBG.

Objective To optimize ultrasonic-assisted extraction process of total flavonoids from Lomatogonium rotatum by using single factor experiment and response surface methodology,so as to provide the theoretical evidence for the exploitable and utilization of flavonoids in Lomatogonium rotatum. Methods Ethanol solution was selected as the extraction solvent.Basedonthesinglefactorexperiment, three independent variables of ethanol volume fraction (X1 ),material to liquid ratio (X2 )and sonication time(X3)with the response value of the content of total flavonoids(Y)were designed for Box-Behnken central composite experiment,then a quadric regression equation was established to predict the yield of totalflavonoids.Results The optimum extraction process was 65% ethanolsolution(V/V)withliquidto material ratio of 20 mL/g for 20 minutes.The actual yield of total flavonoids were 2 1 .26 mg/g,very close to the predictive values.The binomial fitting multiple correlation coefficient (r)is 0.956 8.Conclusion Optimizing the extraction process of total flavonoids of Lomatogonium rotatum by response surface methodology was proved to be stable,reasonable and feasible.