Effect of hydroxyethyl cellulose soluble hemostatic gauze on hemostasis in facial contouring surgery

Background:In facial contour surgery, due to the narrow field of vision in the oral approach and the abundant blood supply to the maxillofacial area, hemostasis is not easy. The purpose of this study was to evaluate the hemostatic effect of soluble hemostatic gauze.Methods:We organized a prospective randomized study of 282 patients receiving facial contouring surgery (4 types of procedures in total) during 2016.1.1 to 2018.12.30. For each type of procedure, patients were randomly divided into study group (received hemostatic gauze) and control group (received sterile gauze). Two groups were compared for each type of procedure regarding 5 major perioperative variables: intraoperative blood loss, operation time, 24-hour postoperative drainage volume, total postoperative drainage volume, and postoperative drainage time. Correlation between variables was analyzed.Results:Compared with control group, the study group had higher amount of intraoperative blood loss in mandibular angle ostectomy (MAO) (P < .01) and mandibular angle-body-chin curved ostectomy procedures (P < .05), less total postoperative drainage volume in MAO (P < .01) but not in malarplasty with MAO and partial masseter muscle resection along with MAO procedures. No significant difference was observed between respective study and control groups regarding operation time, 24-hour postoperative drainage volume, and postoperative drainage time in any of the 4 types of surgery. In all 4 types of procedures, a strongly positive correlation was observed between total drainage volume and 24-hour drainage volume in both the study and control groups (r: 0.88–0.97, P < .01).Conclusion:The effect of hydroxyethyl cellulose soluble hemostatic gauze on hemostasis in facial contouring surgery is associated with the type of surgery, which can reduce the risk of postoperative bleeding in MAO. However, for surgery with relatively large amount of intraoperative and postoperative bleeding, the hemostatic gauze had a limited postoperative hemostasis efficacy, which needs further evaluation.     

MEBO油纱治疗外伤性指端坏死60例报告

目的：观察湿润烧伤膏MEBO油纱治疗指端坏死的治疗效果。方法：用自制MEBO油纱予指端坏死创面换药。结果：60例病人创面愈合，除2例因残端骨感染行坏死骨咬除外，其余58例均比原坏死部位增长3mm-5mm，比常规截指增长10mm以上，残指功能明显改善，结论：MEBO油纱对指端坏死治疗效果良好。     

Water-resistant antibacterial properties of a graphene oxide/cetylpyridinium chloride complex formed on medical gauze fibers

ObjectivesGraphene oxide (GO) is a nanocarbon material with a high aspect ratio (width:thickness) and abundant anionic functional groups on its surface. In this study, we attached GO to the surface of medical gauze fibers, constructed a complex with a cationic surface active agent (CSAA), and demonstrated that the treated gauze exhibits antibacterial activity even after rinsing with water.MethodsMedical gauze was immersed in GO dispersion (0.001%, 0.01%, and 0.1%), rinsed with water, dried, and subjected to the Raman spectroscopy analysis. Subsequently, the gauze treated with 0.001% GO dispersion was immersed in 0.1% cetylpyridinium chloride (CPC) solution, immediately rinsed with water, and dried. Untreated, GO-only, and CPC-only gauzes were prepared for comparison. Each gauze was placed in a culture well, seeded with Escherichia coli or Actinomyces naeslundii, and turbidity was measured after 24 h of incubation.ResultsThe Raman spectroscopy analysis of the gauze after immersion and rinsing showed a G band peak, indicating that GO remained on the surface of the gauze. The turbidity measurements indicated that GO/CPC-treated gauze (GO-treated and rinsed, followed by CPC-treatment and rinsing) significantly decreased turbidity compared to the other gauzes (P < 0.05), suggesting that the GO/CPC complex remained on the gauze fibers even after water rinsing and showed antibacterial activity.ConclusionsThe GO/CPC complex imparts water-resistant antibacterial properties to gauze and has the potential to be widely used for the antimicrobial treatment of clothes.     

断层皮肤供区创面皮肤原位再生修复的临床研究

To extend clinical application of skin regeneration in .situ technique with MEBO on split skin thickness donor site a protocol was made for clinical study of treating skin donor site in skin regeneration is situ technique with MEBO in Octobcr of 2005 .The protocol was sent to hospitals that had carried out such study for their conducting the study .The data