曲安奈德联合点阵CO2激光治疗增生性瘢痕的疗效观察

目的探讨曲安奈德(TA)联合点阵CO₂激光治疗增生性瘢痕(HS)的临床疗效。方法选取2015年7月-2018年8月收治的80例HS患者,随机数字表法分为TA组(瘢痕内注射TA治疗)和联合组(瘢痕内注射TA联合点阵CO₂激光治疗)。对比两组治疗前后温哥华瘢痕量表(VSS)、视觉模拟疼痛量表(VAS)、瘙痒评分;对比两组临床疗效,采用列联表分析瘢痕面积与临床疗效的相关性;对比两组治疗前后血清VEGF、TGF-β1水平及不良反应发生率、满意度、复发率。结果治疗前两组VSS、VAS和瘙痒评分比较,差异无统计学意义(P>0.05);与治疗前比较,治疗后两组VSS、VAS和瘙痒评分降低,且联合组低于TA组(P<0.05);联合组临床有效率(97.50%)高于TA组(82.50%)(P<0.05),瘢痕面积与临床疗效有相关性(P<0.05);联合组不良反应发生率(10.00%)低于TA组(25.00%),满意度(92.50%)高于TA组(77.50%)(P<0.05);两组复发率比较,差异无统计学意义(P>0.05)。结论TA联合点阵CO₂激光可有效抑制瘢痕增生,疗效确切,不良反应少,患者满意度高。     

误诊为瘢痕的微囊肿附属器癌一例

患者,女,35岁。左鼻唇沟结节8年,5年前曾接受激光烧灼治疗。组织病理示：真皮中上部见角囊肿及瘤细胞组成的导管结构,真皮下部瘤细胞呈团块或条索状浸润,肿瘤细胞异型性不明显。诊断：微囊肿附属器癌。行肿瘤扩大切除术,随访6个月无复发。     

Exploring the meaning of critical incident stress experienced by undergraduate nursing students: A hermeneutic study

AimTo better understand the meaning of clinical related critical incident stress experienced by undergraduate nursing students.BackgroundUndergraduate nursing students who engage in learning in the clinical practice setting may experience critical incidents.DesignGadamer’s philosophical hermeneutics (1960/2013) was used to explore the meaning of clinical related critical incident stress experienced by undergraduate nursing students.MethodsA purposive sample was used to recruit 11 students who were enrolled in a Canadian university baccalaureate nursing program. Data collection involved conducting semi-structured interviews over 10 months in 2020–2021. The interviews were recorded and transcribed verbatim and the data were analyzed using the interpretive method of hermeneutics.ResultsFindings from this research revealed that the student-teacher relationship was influenced by students’ experiences of critical incident stress. Students’ navigating uncertainty and the need to maintain the optic of perfection had a potential impact on the response to critical incidents.ConclusionThis study highlighted that critical incident stress may lead to distress associated with students’ altered perception of nursing as a discipline and profession as well as created opportunity for new insights and possibilities.     

Serum EGF and NGF levels of patients with brain injury and limb fracture

ObjectiveTo explore the expression and significance of human epidermal growth factor (EGF) and nerve growth factor (NGF) in patients with knee osteoarthritis.MethodsRT-PCR and enzyme-linked immunosorbent assay were used to measure the serum EGF and NGF expression levels of patients with limb fracture and brain trauma injurry after 1 d, 3 d, 7 d, 14 d and the relationship between them was analyzed. The level was compared among the simple fracture group, traumatic brain injury group and the normal control group, with 40 cases in each group.ResultsThe serum NGF levels were significantly different among three groups. Serum NGF, EGF mRNA and protein levels gradually decreased with the increasing injury time in the limb fracture combined with brain injury group, traumatic brain injury group, the simple fracture group and the health control group (P<0.05).ConclusionsThe serum of NGF, EGF levels significantly increased when limb fracture combined with brain injury, so EGF and NGF may be involved in the process of fracture healing.     

不同补液强度对重度失血性休克早期血清乳酸及钾的影响

目的 研究不同剂量液体治疗对重度失血性休克早期血清乳酸及钾的影响.方法 采用控制性颈动脉放血法建立持续出血性休克兔模型,共42只,随机分为3组,各14只,无补液组不输液;大剂量复苏组按失血量两倍输液,速度参照平均动脉压70～ 80 mm Hg目标值调整;小剂量复苏组按失血量1倍输液,速度参照平均动脉压50～60 mm Hg目标值调整,于休克前及液体治疗1、2、3、4 h分别检测血清乳酸及钾浓度,观察病死率.结果 小剂量组血清乳酸及钾浓度在治疗1、2、3、4h均显著低于无补液组(P＜0.05)和大剂量复苏组(P＜0.05),4h病死率(1/14)显著低于无补液组(10/14),而大剂量组病死率(5/14)与其他两组比较差异无统计学意义.结论 限制性液体复苏可以降低未控制失血的创伤出血性休克早期病死率,小剂量补液较快速大量补液更有利于抑制酸中毒进展及高钾血症.     

Effects of mechanical forces on the formation of cutaneous wounds during skin expansion and emerging therapies for wound healing and scar prevention

Objectives:To update a possible role of cosmeceutical topic treatment to obtain a better scar.Methods:This is a preliminary supportive study. A total of 14 patients who went to the General Hospital of Mexico City, Mexico, between May and December 2020, for breast reconstruction were included in the current study. The biopsies were carried out to the scar area of the previous I° and II° surgery. The patients were thus divided into 2 groups: those who used Cicolea cream® as a treatment supplement and those who used only petrolatum.Results:Collagen fibers arranged in a regular pattern in the group treated with Cicolea compared to dispersed collagen fibers in the group treated with pure petrolatum. Furthermore, the patients who presented hypertrophic or keloid scars secondary to mastectomy, developed after insertion of breast expanders an organized scarring process, with improvement of scar if treated with Cicolea.Conclusion:Based on our observations, it is possible to propose that the action of the polyphenols present in the different components of Cicolea® cream leads to a better evolution of the wound healing compared to the action of petrolatum composition.     

Mild Traumatic Brain Injury and Subsequent Acute Pulmonary Inflammatory Response

ObjectiveThe influence of moderate-to-severe traumatic brain injury (TBI) on acute pulmonary injury is well established, but the association between acute pulmonary injury and mild TBI has not been well studied. Here, we evaluated the histological changes and fluctuations in inflammatory markers in the lungs to determine whether an acute pulmonary inflammatory response occurred after mild TBI. MethodsMouse models of mild TBI (n=24) were induced via open-head injuries using a stereotaxic impactor. The brain and lungs were examined 6, 24, and 72 hours after injury and compared to sham-operated controls (n=24). Fluoro-Jade B staining and Astra blue and hematoxylin staining were performed to assess cerebral neuronal degeneration and pulmonary histological architecture. Quantitative real-time polymerase chain reaction analysis was done to measure inflammatory cytokines. ResultsIncreased neuronal degeneration and the mRNA expression of interleukin (IL)-6, tumor necrosis factor (TNF)-α, IL-10, and transforming growth factor (TGF)-β were observed after mild TBI. The IL-6, TNF-α, and TGF-β levels in mice with mild TBI were significantly different compared to those of sham-operated mice 24 hours after injury, and this was more pronounced at 72 hours. Mild TBI induced acute pulmonary interstitial edema with cell infiltration and alveolar morphological changes. In particular, a significant infiltration of mast cells was observed. Among the inflammatory cytokines, TNF-α was significantly increased in the lungs at 6 hours, but there was no significant difference 24 and 72 hours after injury. ConclusionMild TBI induced acute pulmonary interstitial inflammation and alveolar structural changes, which are likely to worsen the patient’s prognosis.