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Objective To investigate the management of complications after laparoscopic adjustable gastric banding (LAGB).Methods The clinical data of 83 obese patients who were treated by LAGB at the Nankai Hospital from September 2005 to June 2011 were retrospectively analyzed.The complications after LAGB were analyzed.The adjustable gastric band was installed under laparoscope so as to form a small gastric pouch with a volume ranged between 20-30 ml.The water pump was fixed in the rectus abdominis anterior sheath under the appendix ensiformis.The gastric band was adjusted according to the changes of the body weight,symptoms after diet and results of imaging examination of upper gastrointestinal tract.Patients were followed up via out-patient examination and phone call till July 2013.Results The incidence of complications of the 83 patients was 44.6％ (37/83).Six patients had short-term complications and 31 patients had long-term complications.The short-term complication mainly presented as post-prandial vomiting.The symptoms of 5 patients were relieved by changing of eating habit.The condition of 1 patient was severe,and the symptom was relieved 5 days later after fasting and nutritional support.For the 31 patients with long-term complications,25 were complicated with band erosion into gastric lumen via gastric wall (6 patients were complicated with infection of the water pump site),and they were cured by removal of band laparoscopicly.Ten patients were complicated with water pump-related complications,including 6 with infection of the water pump site and 4 with pump migration.The water pumps of the 4 patients with pump migration were surgically removed.Two patients had band slipping to the stomach.The band was restored to the original place after removing the liquid from the band and reducing the food intake,and then the position of the band in 1 patient was restored to normal,and no change was observed in another patient,and the band was removed laparoscopicly.Conclusions The incidence of complications after LAGB is high,and it increases as the time passes by.Most of the long-term complications after LAGB need to be treated by reoperation.

8.Short-term application of noisy pressure support ventilation in patients of AECOPD with respiratory failure

Hongzhi YU ; Qi WU

Tianjin Medical Journal 2017;45(3):278-281

Objective To investigate the effects of noisy pressure support ventilation (Noisy PSV) in patients of acute exacerbation of chronic obstructive pulmonary disease (AECOPD) with respiratory failure, and to provide basic support for the new weaning mode for AECOPD. Methods A single-center, prospective, randomized, crossover clinical research was conducted. A total of forty-six AECOPD combined with respiratory failure patients who mechanically ventilated more than 24 hours in intensive care unit (ICU) of Tianjin Haihe Hospital from November 2014 to October 2015 were enrolled in this study. When the respiratory failure improved through conventional treatment, patients were mechanically ventilated with conventional PSV and Noisy PSV for two hours respectively in random sequence during spontaneous breathing recovery phase. The pressure support (PS) level was titrated to reach tidal volumes (Vt) about 8 mL/kg in both modes. The level of positive end-expiratory pressure (PEEP) and fraction of inspired oxygen were kept unchanged in both modes. The coefficient of variation of PS during Noisy PSV was set at 30%. Data of gas exchange, hemodynamics, lung functional parameters, breathing patterns and patient-ventilator synchrony were analyzed. Results All of the patients were well tolerated with the two modes, and no adverse reactions were found. The changes of gas exchange, hemodynamics, respiratory mechanics in PSV and Noisy PSV showed a clinical acceptable range. The variability of Vt was significantly increased in Noisy PSV mode than that in conventional PSV mode. While the number of asynchrony events was decreased in Noisy PSV mode than that in conventional PSV mode. Conclusion The Noisy PSV is safe and feasible for patients of AECOPD with respiratory failure, which may be a new weaning mode for AECOPD.