Objective:To investigate the use of folded flap for repair of laryngeal and hypopharyngeal defect and the clinical efficacies of laryngeal and hypopharyngeal function reconstructions after surgery of piriform sinus cancer.Methods:A retrospective analysis was performed for 10 cases of piriform sinus cancer that were treated in the Second Norman Bethune Hospital of Jilin University from January 2020 to April 2023 and all patients were males, aged 42-68 years. The first choice of treatment for all patients was surgery. After function neck dissection and tracheotomy, partial laryngectomy and hypopharyngectomy were carried out. The folded island flaps were prepared and used for the repairs of laryngeal and hypopharyngeal defects and the reconstructions laryngeal and hypopharyngeal functions. The patients were followed up.Results:The laryngeal and pharyngeal cavities were reconstructed well in 10 patients, and all the flaps survived, with no case of pharyngeal fistula. All patients were able to eat normally through the mouth at 2 weeks after surgery without obvious choking, and 4 patients completed the swallowing function evaluation without aspiration or only a small amount of aspiration. All the 10 patients underwent postoperative radiotherapy. The postoperative follow-up time was 5.4-41.4 months, and there was no case with tumor recurrence or death. Laryngoscopy showed that 8 patients had a spacious new laryngeal orifice, which met the conditions for extubation, of whom 7 patients had their tracheal tubes removed and 1 patient was still under observation, and that 2 patients had a slightly narrowed new laryngeal orifice due to a thick skin flap, with further follow-up observation. All patients retained their phonatory functions after surgery.Conclusion:Folded island flap can be used for the function reconstructions of the larynx and hypopharynx after surgery of pyriform sinus cancer.

【Objective】 To retrospectively analyze the epidemiological characteristics and regularity of HIV among voluntary blood donors in our hospital, so as to provide help for the formulation of effective coping strategies for voluntary blood donation, reduce the incidence of blood transmitted diseases, and improve blood safety. 【Methods】 HIV infection and population characteristics of voluntary blood donors in our hospital from January 2010 to December 2019 were statistically analyzed. 【Results】 A total of 330 000 blood donations occurred during 2010 to 2019, and 1 024 HIV-infected blood donors were screened out, with a positive rate of 0.31%. The detection rate was the highest in 2016, with 158 cases infected(158/35 889, 0.44%), followed by 151 in 2015(151/37 586, 0.40%), and 42 in 2010(42/20 824, 0.20%). The difference was statistically significant (χ²=88.754, P<0.001). Among the 1 024 HIV-infected patients, 876 were males and 148 females, with a gender ratio close to 6∶1. The majority were aged between 18~35 years old, accounting for 86.13%. 【Conclusion】 The HIV infection rate among voluntary blood donors had been increasing year by year in recent years. Major blood centers should strengthen the health information before blood donation, carry out HIV screening strictly, select blood donors appropriately, establish a stable blood donation team, so as to reduce the discarding rate of blood.