OBJECTIVETo investigate the change pattern of substance P (SP) in the portal vein during the rectoanal inhibitory reflex (RAIR), and its physiologic significance; the influence of external splanchnic nerve of rectum and anal to the RAIR.

METHODSThe rats were divided into seven groups, among them there were six groups, which were first divided into two big groups according to whether the external splanchnic nerve to the rectum and anal were cut off, one is no cut-off external splanchnic nerve group, the other is cut-off external splanchnic nerve group. Each group were further divided, according to the distance of the balloon-sac on Foley's tube in the rectum away from anal verge, into 2, 4, 6 centimeter groups; A control group with Foley's tube put into the rectum, but the balloon-sac on Foley's tube did not pumped up with water. Measure and compare the value and change of SP in the portal vein during the RAIR.

RESULTSThe comparison of SP in portal vein, among the 2, 4 centimeter groups with cut-off external splanchnic nerve, all groups with intact external splanchnic nerve supply and control group, had no statistic difference (P>0.05). The comparison between the 6 centimeter group with intact external splanchnic nerve group and the 2, 4 centimeter groups with cut-off external splanchnic nerve, P<0.01, the statistic difference was significant. The comparison between 6 centimeter group of intact and cut-off external splanchnic nerve, P<0.01, the difference was significant.

CONCLUSIONThe reason for the stimulation on upper rectum dose not induce the RAIR is related with this stimulation result in the release of SP, the exciting mediator to internal sphincter. The external splanchnic nerve supply of rectum and anal canal have influence on the change of SP of the portal vein during RAIR.

Anal Canal ; physiology ; Animals ; Female ; Male ; Portal Vein ; physiology ; Rats ; Rats, Sprague-Dawley ; Rectum ; physiology ; Substance P ; metabolism

Objective:To investigate the states of quality of working life among male nurses in China so as to provide the theory basis to conduct further intervention researches on quality of working life of male nurses.Methods:From January to December 2019, a questionnaire survey was conducted among 10 775 male nurses from 31 provinces, autonomous regions and municipalities directly under the central government.Results:The mean score of quality of working life among male nurses in China was 3.10 (2.86, 3.60) points. The score of work mastery dimension and career satisfaction dimension were 3.40 (3.00, 4.00) and 3.50 (3.00, 4.00) points respectively, in a high scoring position; and the score of work pressure dimension was relatively low 2.60 (2.00, 3.00) points. Significant differences were detected on the score of quality of working life in male nurses with varied educational background, professional title, position, employment mode and annual income, as well as those male nurses who obtained the certificate of specialized nurse and held the post of nursing association ( χ2 values were -2.833, -6.034, -8.755, Z values were 34.163-90.239, P<0.01). Regression analysis showed that professional title, education background, annual income had a positive forecast effect on the quality of working life of male nurses ( t values were 8.445, 6.651, 6.188, P<0.01). Whether to hold the post of community or obtain the qualification of specialized nurse had a negative predictive effect on the quality of work life ( t values were -3.698, -3.698, P<0.01). Conclusion:The quality of working life of male nurses in China is in the middle level. Nursing managers should take targeted measures to improve the quality of work and life of male nurses and further stabilize and expand the ranks of male nurses.

OBJECTIVE: To review the surgical treatment for reconstructing hypopharynx and cervical esophagus after hypopharyngo-oesophagectomy, and to evalue its efficacy. METHODS: Different methods were adopted to reconstruct the hypopharynx and cervical esophagus among 25 cases, including 14 cases of carcinoma of the hypopharynx and 11 of carcinoma of hypopharynx and cervical esophagus. In accordance with the standard of the International Union Against Cancer in 1997, the 25 cases were divided into different clinic stages, among which 5 were in T(2)N(0), 2 in T(2)N(1), 4 in T(3)N(0), 3 in T(3)N(1), 7 in T(4)N(1) and 3 in T(4)N(2). Treatment protocol was as follow: Pure operation for 5 cases, re-operation after radiotherapy for 2 cases, operation plus radiotherapy for 18 cases, laryngeal conservation operation for 8, and neck dissection for 21 cases. Reconstruction was done by using free jejunal transplantation, gastric pull-up, the laryngotracheal flap, and myocutaneous flap. RESULTS: After the reconstruction, 3 cases of free jejunal graft and gastric pull-up, 4 of laryngotracheal flap recovered oral fleeding within 2 weeks. No serious complications occurred. After 18 cases underwent the myocutaneous flap reconstruction, no complications occurred in 10 patients, but there were different complications in 8 cases, including pharyngocutaneous fistula (6 cases), haryngoesphageal stenosis (7 cases), and pectoralis major myocutaneous flap necrotic (1 case). The 3-year survival rate was 38.9% (7/18). CONCLUSION Reconstruction with free jejunal graft, gastric pull-up, and laryngotracheal flap constitutes is a safe and reliable method to restore the continuity of the upper digestive tract after pharyngo-laryngo-oesophagectomy. After the reconstruction with myocutaneous flap, there is high incidence of pharyngocutaneous fistula and haryngoesophageal stenosis.
Adult ; Aged ; Carcinoma, Squamous Cell ; surgery ; Esophageal Neoplasms ; surgery ; Esophagoplasty ; methods ; Esophagus ; surgery ; Female ; Humans ; Hypopharyngeal Neoplasms ; surgery ; Hypopharynx ; surgery ; Jejunum ; transplantation ; Male ; Middle Aged ; Reconstructive Surgical Procedures ; methods ; Surgical Flaps