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BACKGROUND: Peritendinous adhesion is the most common complication after tendon surgery, particularly in zone II of the hand. Prevention of inflammation around the tendon, which develops after trauma and surgery, can decrease the tendon adhesion formation. This study compares the effect of some anti-inflammatory cytokines with 5-fluorouracil (5-FU) on the tensile strength and in prevention of peritendinous adhesion formation. METHODS: Sixteen rabbits were allocated equally into 4 groups. Tendons of the index and ring fingers in zone II of the right hind paw were cut in all animals and then repaired. Interferon (IFN)-α in group 1, 5-FU in group 2, normal saline in group 3, and IFN-ß in group 4 were locally applied to the repaired sites. Three weeks later, tensometric and histopathologic evaluations were performed. RESULTS: The force required for removing the tendon from the sheath was not different between the groups (P = 0.130), but the time required for removal was significantly shorter in 5-FU group (P = 0.049). The strength of repair was not different between the groups in terms of force and time needed for rupture (P = 0.11 and 0.67, respectively). In histopathologic examination, normal architecture of the tendon and peritendon environment was less disturbed in the IFN groups, especially in IFN-ß specimens. CONCLUSIONS: Local application of 5-FU significantly reduced peritendinous adhesion. Local IFN-α and IFN-ß had no significant effect on the prevention of peritendinous adhesion formation. The strength of the repair was not affected by these cytokines and 5-FU.
Assuntos
Anti-Inflamatórios/uso terapêutico , Fluoruracila/uso terapêutico , Interferon-alfa/uso terapêutico , Interferon beta/uso terapêutico , Complicações Pós-Operatórias/prevenção & controle , Traumatismos dos Tendões/cirurgia , Aderências Teciduais/prevenção & controle , Animais , Anti-Inflamatórios/farmacologia , Fenômenos Biomecânicos , Fluoruracila/farmacologia , Interferon-alfa/farmacologia , Interferon beta/farmacologia , Coelhos , Tendões/efeitos dos fármacos , Tendões/fisiopatologia , Tendões/cirurgia , Resistência à Tração/efeitos dos fármacos , Aderências Teciduais/etiologia , Resultado do TratamentoRESUMO
Background: Clinical educational environments play a substantial role in the teaching of medical residents and fellows. In order to improve the quality of clinical education, its status should be evaluated. Therefore, we aimed to inquire about the educational environment of Plastic Surgery fellows in two teaching hospitals in Tehran, Iran using the Postgraduate Hospital Educational Environment Measure (PHEEM). Method: In this descriptive cross-sectional study, Plastic Surgery fellows studying in two teaching hospitals in Tehran, Iran, in 2022 were included. The Persian version of the PHEEM questionnaire was applied for assessing the clinical educational environment. The collected data were analyzed by SPSS software version 22. Results: Twenty six Plastic Surgery fellows were studied, 15.4% of whom were women (n=4) and 84.6% were men (n=22). The mean total score of the PHEEM questionnaire was 89.68±26.02. The highest mean score was in the teaching dimension (35.08), while the lowest mean score was in the social support dimension (25.42). Conclusion: Most dissatisfaction among Plastic Surgery fellows were in the field of social support. It is necessary to adopt proper educational policies to improve the supportive resources for Plastic Surgery fellows.
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BACKGROUND: In many countries, there is no registry system to record data for Epidermolysis Bullosa patients. However, the first steps for establishing a registry system have been taken in Iran. Therefore, we decided to publish it for the first time. METHODS: This was a prospective cross-sectional study. Data was obtained from 538 patients consecutively enrolled in the Iranian Epidermolysis Bullosa Registry, using a detailed instrument created by burn research center of Iran University of Medical Sciences, Tehran, Iran from Jan 2017 to Sep 2017. Patients' information such as age, gender, address, educational status, parents' family relationship and pathology result were recorded. Then a physician examined patients focusing on gastrointestinal system, teeth, ophthalmologic disorders, psychological problems and contracture of the upper and lower limbs and any other complaint. Data entered SPSS ver.19 and analyzed using ANOVA and LSD tests. RESULTS: Overall, 538 EB patients were registered in Iran (6.72 patient in 100.000 person) with an approximately equal ratio between males and females. Among 103 patients whose disease type was determined by a pathologist, 78 patients (75.7%) had dystrophic type, 13 (12.6%) junctional, 9 (8.7%) simplex and 3 (2.9%) kindler type. The most common complaint of patients was dysphagia followed by tooth damage. CONCLUSION: We stablished a data registry for EB patients for the first time in Iran. The frequency of EB in Iran is less than many other countries. However, data completion is to be done to include all patients as possible.
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OBJECTIVE: To compare the healing effects of dried and acellular human amniotic membrane and Mepitel for coverage of split-thickness graft donor site (STGDS). METHODS: Twenty patients who underwent STGDS regeneration surgery in identical anatomic regions were enrolled in this randomized controlled clinical trial conducted in Hazrate Fatemeh hospital (Iran). Patients were randomly assigned in 3 groups of wound dressing; group A by Mepitel, group B AmiCare (Dried amniotic membrane) and group C OcuReg-A (Acellular amniotic membrane). Re-epithelization rate (healing time), pain sensation, scar formation and infection rate were assessed till complete healing was achieved. RESULTS: Our results showed no significant difference between Amicare, OcuReg-A and Mepitel in the features analyzed by us including: Re-epithelization rate (healing time) P value; 0.573, Pain sensation P value: day 4 th: 0.131, day8 th: 0.93 and day 12 th: 0.365, Scar formation P value>0.05and Infection rate. CONCLUSION: Our findings confirmed the safety and efficacy of AmiCare (dried amniotic membrane) and OcuReg-A (Acellular amniotic membrane) in treatment of split-thickness donor site in comparison with Mepitel as a standard wound dressing. Trial registration number: IRCT201511118177N12.
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BACKGROUND: Numerous studies were carried out to develop more sophisticated dressings to expedite healing processes and diminish the bacterial burden in burn wounds. This study assessed the healing effect of nettle extract on second degree burns wound in rats in comparison with silver sulfadiazine and vaseline. METHODS: Forty rats were randomly assigned to four equal groups. A deep second-degree burn was created on the back of each rat using a standard burning procedure. The burns were dressed daily with nettle extract in group 1, silver sulfadiazine in group 2, vaseline in group 3 and without any medication in group 4 as control group. The response to treatment was assessed by digital photography during the treatment until day 42. Histological scoring was undertaken for scar tissue samples on days 10 and 42. RESULTS: A statistically significant difference was observed in group 1 compared with other groups regarding 4 scoring parameters after 10 days. A statistically significant difference was seen for fibrosis parameter after 42 days. In terms of difference of wound surface area, maximal healing was noticed at the same time in nettle group and minimal repair in the control group. CONCLUSION: Our findings showed maximal rate of healing in the nettle group. So it may be a suitable substitute for silver sulfadiazine and vaseline when available.