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Objective@#To investigate the effect of skin soft tissue expansion on repair of large area of scars on extremities.@*Methods@#Twenty-five patients with large area of scars on extremities were admitted to our department from June 2007 to October 2014. There were 14 males and 11 females, aged 4 to 36 years. Operations were performed under local infiltration anesthesia or general anesthesia. In the first stage, 1 to 5 cylindrical expanders with capacities of 250 to 600 mL were placed at left or right sides or at upper or lower parts of the scars. In the second stage, scars of 21 patients were repaired with expanded transverse propulsive and lateral flaps, and scars of 4 patients were repaired with expanded perforator flaps whose pedicles were perforators of brachial artery, superior ulnar collateral artery, or posterior interosseous artery according to areas and shapes of the scars. The secondary wound areas ranged from 13 cm×7 cm to 34 cm×18 cm after dissolution or excision of scars. The areas of flaps ranged from 13 cm×7 cm to 20 cm×12 cm. The donor sites were sutured directly. The flaps after operation and follow-up of patients were observed and recorded.@*Results@#All expanded flaps survived after operation. And the superficial distal part of flap whose pedicle was perforator of posterior interosseous artery in one patient was with necrosis, and other flaps survived well. During follow-up of 3 to 15 months after operation of the second stage, color and texture of flaps were similar to surrounding skin, while extremities of donor sites were thinner and auxiliary incisional scars formed after expansion.@*Conclusions@#Expanded flap is a good way to repair large area of scar on extremities. Bilateral skin of scar is the first choice of donor site of expanded flap. If there isn′t enough skin for expanding on bilateral sides, expanded perforator flap designed at upper or lower part of the scar is another choice to repair the scar.
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Objective@#This paper discusses a surgical method to improve the middle part of face and the temporal surface by using the patented technology of embedding guidance technology.@*Methods@#On the basis of not removing the skin, the application of embedding guidance technology was applied to achieve the effect of facial lifting by placing a 2-0 polyester knitting line under the scalp with a minimally invasive incision(3-5 mm) , paving up to the skull periosteum and down to the hairline edge for compound fixation.@*Results@#Among the 200 patients, 197 were female and 3 were male. Aging from 23-62 years old, all of the patients suffered from mild to moderate problem of saggy skin.Post-operation follow-up was kept from 3 months to 5 years after the treatment, which demonstrated that all of the patients showed different degrees of facial lifting after edema subsided at 3 months, including improvedfacial skin condition, shallower nasolabial groove, lifting of the lateral canthus and tightening of facial skin. The patients were satisfied with the effect.@*Conclusions@#The surgical method is an effective method to solve the problem of facial aging with advantages, such as simple execution, minimized wound, fast recovery, no post-operation bandage requirement and showing great result towards patients suffering from mild and moderate saggy facial skin problem.
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Objective@#To investigate the therapeuctic effect of one-stage reconstruction of distal urethra with free graft of tublar oral mucosa.@*Methods@#Two strips of oral mucosa graft( 0.4—0.6 cm in width), were harvested and sutured around an oiled silk roll to form mucosa tube. The mucosa tube was used to reconstruct distal urethra. Postoperative pressure dressing and earlier urination were recommended.@*Results@#From May 2007 to October 2015, 16 cases with distal urethra defect or stenosis were treated with this method. The urethra defect was 2—4 cm in length. Urethral fistula happened in 3 patients. All the other 13 cases healed primarily. 10 cases were followed up for 1—5 years by telephone with normal function.@*Conclusions@#One-stage reconstruction with free graft of bulbar oral mucosa is suitable and reliable for distal urethra defect less than 4 cm in length.
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Objective To investigate the application of the repeated expanded bilateral deltopectoral flap for resurfacing severe facial cervical scar, with review of relating articles to discuss issue of repeated expanding flap.Methods Nine patients suffered from hyperplastic facial and cervical scar.Two soft tissue expanders were implanted into the anterior chest region at both sides of sternum.The center of inner border of the expander was at the cross of second intercostal and parasternal line, and the lengthways axe of the expander was located at the ligature of the second intercostals and mammary areola.After two weeks when the expander was filled, expanded flap was transferred to cervical defect.The transferred flap was repeated expanded after half a year and transferred to resurface facial defect.Results In the first expansion stage, 600 or 800 ml expander were implanted in each side of sternum.In the second stage, 400 or 500 ml were used.The first stage of expanding process was smooth, and 2 of the expanding flaps were ruptured during the second expansion period.400-520 cm2 (average 440 cm2) additional expanded flap was acquired during two stages of expanding.Conclusions The repeated expanded bilateral deltopectoral flap gives us greater opportunity to repair severe facial-cervical scar.The best interval time of the two-stage expansion is over half a year.The speed of second expansion should be lower than that in the first stage, and protecting the expanding flap carefully from external force compression is needed during the second expasion.
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<p><b>OBJECTIVE</b>To evaluate the safety and immunogenicity of seasonal inactivated influenza vaccine (split virion) and to analyze its cross-reactive antibody responses to H7N9 avian influenza virus.</p><p><b>METHODS</b>An open-labeled clinical trial was carried out in infants aged 6-35 months, adults aged 18-60 years and the elderly aged >60 years. After vaccinations (one dose for adults and the elderly and two doses for infants), adverse events were observed. Serum samples were obtained before vaccination and 21 days after vaccination from adults and elderly subjects. Three types of antibody against seasonal influenza virus and antibody against H7N9 avian influenza virus were tested using microhemagglutination inhibition (HI) assay. Immunogenicity of the vaccine was evaluated based on the immunogenicity criteria for adults and the elderly, set by the Committee for Medicinal Products for Human Use (CHMP) for the European Medicines Agency.</p><p><b>RESULTS</b>A total of 202 subjects (65 infants, 69 adults and 68 elderly) were enrolled and injected for at least one dose. The overall rate of adverse events was 12.4% (25/202) and most of them were under systemic reaction. No serious adverse event was reported. Pre- and post-vaccination serum samples were collected from 124 subjects (64 adults, 60 elderly). After 21 days of vaccination, the sero-conversion rate, sero-protection rate, and geometric mean titer (GMT) ratio (post-/pre-vaccination) of antibody against seasonal influenza virus were 78.1%-90.6%, 92.2%-100.0% and 7.9-41.0 among adults while 66.7%-83.3%, 86.7%-100.0% and 5.7-20.4 among the elderly, respectively. However, after vaccination, both sero-conversion rate and sero-protection rate of antibody against H7N9 avian influenza virus among adults and the elderly became zero, with GMT ratio between 1.2 and 1.4.</p><p><b>CONCLUSION</b>This trial vaccine appeared to have good safety and immunogenicity but inducing no cross-reactive antibody response to H7N9 avian influenza virus.</p>
Subject(s)
Adult , Aged , Aged, 80 and over , Child, Preschool , Humans , Infant , Middle Aged , Young Adult , Antibodies, Viral , Blood , Antibody Formation , Cross Reactions , Hemagglutination Inhibition Tests , Influenza A Virus, H7N9 Subtype , Influenza Vaccines , Allergy and Immunology , Therapeutic Uses , Vaccines, Inactivated , Allergy and Immunology , Therapeutic UsesABSTRACT
<p><b>OBJECTIVE</b>To evaluate safety and immunogenicity of inactivated hepatitis A vaccine in HBsAg carriers and healthy children.</p><p><b>METHODS</b>One hundred and twenty-one healthy children and ten HBsAg carriers, aged 1-10 years HAV susceptible were enrolled in the study. The inactivated hepatitis A vaccine was produced by Tangshan Biogenetic Company. The dosage of the vaccine was 1000 U/Dosage and 500 U/Dosage. The vaccination schedule was six month apart for two injections. The serum anti-HAV level was detected with EIA at one month after first injection and at one and six month after the booster injection, respectively.</p><p><b>RESULTS</b>The anti-HAV appeared in all the children. One month after the booster injection, the serum anti-HAV level in children vaccinated 500 U/Dosage was 4684.9 mIU and 4535.6 mIU, respectively and in the children vaccinated 1000 U/Dosage, 5399.8 mIU and 7347.1 mIU, respectively. The anti-HAV level was not statistically different between the two groups of children. There was no adverse reaction after the vaccination. The anti-HAV level was still high one year after first injection.</p><p><b>CONCLUSIONS</b>The data indicated that the safety and immunogenicity of the domestic inactivated hepatitis A vaccine were excellent in both groups of children.</p>