Objective To understand the eco-hydraulics characteristics of Biomphalaria straminea,the intermediate host of Schistosoma mansoni. Methods The drainage method and settlement tube method were applied to measure B. straminea's den-sity and hydrostatic settling velocity respectively. Results The density of B. straminea was 1.04-1.16 g/cm3,and the average value was 1.08 g/cm3. The hydrostatic settling velocity was 2.32-12.92 cm/s. Conclusions The eco-hydraulics characteristics of B. straminea is different from Oncomelania hupensis,and more attention should be paid to the hydraulic measures for the con-trol of B. straminea.

Objective To compare.the therapeutic effect of claw-type bone plates and anatomical plates in fixation of traumatic multiple rib fractures.Methods Clinical data of 70 patients with traumatic multiple rib fractures between January 2016 and November 2017 was analyzed retrospectively.Based on the treatnents,patients were assigned to two groups:the claw-type bone plates fixation group (n0=33) and anatomical plates fixation group (n =37).The variables including operation time,intraoperative blooding,postoperative thoracic hemorrhage rate,wound drainage,plate loosening and breakage,postoperative chest pain were compared.Data were analyzed using SPSS17.0 statistical software.Student's t test and rank sum test were used to compare the measurement data,and x2test was used to compare the counting data.Results The operation time after the full exposure of fractures were recorded.Operation time for each fracture [(11.04± 1.81)min vs (12.30±0.47) min],intraoperative bleeding [(120.76±7.19) mL vs (110.00±7.45) mL] and wound drainage [(114.06±7.24) mL vs (107.98±7.23) mL] in the claw-type rib bone plates fixation group were statistically significant different compared with the anatomical plates fixation group (P＜0.05).There were lcase of screw abscission in the anatomical plates fixation group (suffering trom osteoporosis) and 2 cases in the claw-type bone plates fixation group (without osteoporosis and other complications).Two cases suffered from chest pain and 2 cases suffered from massive hemorrhage in the chest in the claw-type bone plates fixation group,with secondary operation removing internal fixations.Conclusions The two kinds of internal fixation have their own advantages and disadvantages.The claw-type bone plates fixation is cheaper,easier to shape and has shorter operation time,which is especially suitable for comminuted fracture.Although the anatomical plates fixation is more expensive than claw-type bone plates fixation,the anatomical plates fixation on multiple fractured ribs has less postoperative blood loss,lower postoperative thoracic hemorrhage rate,plate loosening,chest pain,which significantly reduces second operation and possesses a higher clinical application value.

Objective: To evaluate the postoperative clinical effects of balloon sinuplasty on chronic rhinosinusitis. Methods: PubMed, OVID, Embase, Cochrane Library, Proquest, Web of Science, Sinomed, Wan Fang and CNKI database (from established time to March of 2017) were searched for trials about the chronic rhinosinusitis treated by balloon sinuplasty. The relavent literatures were screened, and the prospective control studies were chosen. Lund-Mackay and SNOT-20 scores were used as the outcome idicators, and the methodological quality of the literatures were evaluated strictly. The extracted data were analyzed by Revman 5.3 software. Results: A total of 7 prospective before-after self-controlled studies were included, and the overall quality of which was relatively high. Meta-analysis showed that the Lund-Mackay scores at 6 months post-operation, the SNOT-20 scores at 6 months and more than 1 year post-operation were significant lower than baseline when balloon sinuplasty used in the surgery; the SNOT-20 scores at more than 1 year post-operation was lower than baseline when a standalone ballon sinuplasty was performed. All the results was statistically significant (P<0.05), and all the SMD were more than 0.8. Conclusions The postoperative effect of balloon sinuplasty on chronic rhinosinusitis is obvious, and the subjective symptoms in patients is relieved effectively.

Objective:To observe the efficacy and safety of the M receptor antagonist Bencycloquidium bromide nasal spray in treatment of seasonal allergic rhinitis with runny nose as the main symptom. Methods:From August 2021 to September 2021, 134 patients with seasonal allergic rhinitis were enrolled in the otolaryngology Outpatient Department of Peking University Third Hospital, First Affiliated Hospital of Harbin Medical University and China-Japanese Friendship Hospital of Jilin University, including 71 males and 63 females, with a median age of 38 years. TNSS score and visual analogue scale（VAS） of total nasal symptoms were observed during 2 weeks of treatment with Bencycloquidium bromide nasal spray. Results:TNSS score decreased from （8.89±3.31） on day 0 to （3.71±2.51） on day 14（P<0.001）, VAS score of nasal symptoms decreased from （24.86±7.40） on day 0 to （6.84±5.94） on day 14（P<0.001）, VAS score of rhinorrhoea decreased from （6.88±2.06） on day 0 to （1.91±1.81） on day 14（P<0.001）. Rhinoconjunctivitis quality of life questionnaire（RQLQ） score decreased from （94.63±33.35） on day 0 to （44.95±32.28） on day 14（P<0.001）. The incidence of adverse reaction was low and no serious adverse events occurred during the whole experiment. Conclusion:Bencycloquidium bromide nasal spray has significant efficacy and good safety in the treatment of seasonal allergic rhinitis.
Male ; Female ; Humans ; Adult ; Rhinitis, Allergic, Seasonal/drug therapy* ; Nasal Sprays ; Quality of Life ; Administration, Intranasal ; Rhinorrhea ; Double-Blind Method ; Treatment Outcome ; Rhinitis, Allergic/drug therapy*