多疗程糖皮质激素治疗孕34周前早产临床分析

目的:评价多疗程糖皮质激素(GC)治疗孕34周前早产的作用。方法:回顾性分析华西第二医院收治的150例孕34周前早产分娩的临床资料,根据糖皮质激素治疗情况分为未治疗组(对照组)、不足1疗程组、1疗程组、2疗程组和3疗程组。结果:GC治疗组与对照组的新生儿出生体重和身长Z积分值差异无显著性(P>0.05);Logistic回归分析显示2疗程GC治疗可以减少新生儿5分钟窒息发生,但重复疗程GC治疗对新生儿RDS、脑室内出血、吸入性肺炎和婴幼儿死亡、远期并发症等无保护性作用。结论:孕34周前糖皮质激素治疗早产是有好处的,但重复疗程治疗的作用尚需进一步观察。     

论医学院校人文课程的价值功能

在传统生物医学模式下,医学的自然科学属性被无限放大,而人文科学属性未被受到重视甚至被忽视,随着现代生物-心理-社会医学模式的转变,人文科学的作用重新成为医学院校关注的热点和重点.认真审视医学院校人文课程的性质与地位,充分发挥其价值功能,对于提高医学生的人文素养,培养具有人文精神的21世纪医学工作者具有重要意义.     

Mammographically Occult Asymptomatic Radial Scars/Complex Sclerosing Lesions at Ultrasonography-Guided Core Needle Biopsy: Follow-Up Can Be Recommended

An increasing number of radial scars are detected by ultrasound (US), but their management is controversial. This study investigated the upgrade rate in mammographically occult radial scars/complex sclerosing lesions without epithelial atypia at US-guided 14-gauge core needle biopsy in asymptomatic patients. Nineteen mammographically occult benign radial scars/complex sclerosing lesions (median size, 7 mm; range, 3–23 mm) were included. Patients underwent surgical excision (n = 10) or vacuum-assisted excision, with follow-up US at least 6 mo after benign vacuum-assisted excision results (n = 8), or underwent US follow-up for 2 y after core needle biopsy (n = 1). Any cases with change in diagnosis to high-risk lesions or malignancy at excision were considered upgrades. The upgrade rate was 0.0%. Based on US findings, 15.8% (3/19) were Breast Imaging Reporting and Data System (BI-RADS) category 3, 68.4% (13/19) were BI-RADS category 4a and 15.8% (3/19) were BI-RADS category 4b. Follow-up with US can be considered for mammographically occult benign radial scar/complex sclerosing lesions diagnosed by US core needle biopsy in asymptomatic patients.     

Comparison of Turkish Disability Policy,the United Nations Convention on the Rights of Persons with Disabilities,and the core concepts of U.S. disability policy

This article compares Turkey's Constitution and its Disabled Persons Act with the United Nations Convention on the Rights of Persons with Disabilities (UNCRPD) and the core concepts of United States (U.S.) disability policy. Conclusions are that Turkey's Constitution and statutes are remarkably congruent with the UNCRPD and the core concepts. They are not, however, identical. This fact suggests that Turkey can still improve its statutes to reflect more closely the UNCRPD and core concepts. The review of these policy documents suggests that there are other steps Turkey can take to improve disability policy and its implementation. They are to amend Turkey's laws, determine the status of individuals and families affected by disability, and pursue vigorous implementation of their rights.     

Lack of definitive presurgical pathological diagnosis is associated with inadequate surgical margins in breast-conserving surgery

PurposeTo determine the impact of definitive presurgical diagnosis on surgical margins in breast-conserving surgery (BCS) for primary carcinomas; clinicopathological features were also analyzed.MethodsThis retrospective study included women who underwent BCS for primary carcinomas in 2016 and 2017. Definitive presurgical diagnosis was defined as having a presurgical core needle biopsy (CNB) and not being upstaged between biopsy and surgery. Biopsy data and imaging findings including breast density were retrieved. Inadequate surgical margins (IM) were defined per latest ASCO and ASTRO guidelines. Univariable and multivariable analyses were performed.Results360 women (median age, 66) met inclusion criteria with 1 having 2 cancers. 82.5% (298/361) were invasive cancers while 17.5% (63/361) were ductal carcinoma in situ (DCIS). Most biopsies were US-guided (284/346, 82.0%), followed by mammographic (60/346, 17.3%), and MRI-guided (2/346, 0.6%). US and mammographic CNB yielded median samples of 2 and 4, respectively, with a 14G needle. 15 patients (4.2%) lacked presurgical CNB. The IM rate was 30.0%. In multivariable analysis, large invasive cancers (>20 mm), dense breasts, and DCIS were associated with IM (p = 0.029, p = 0.010, and p = 0.013, respectively). Most importantly, lack of definitive presurgical diagnosis was a risk factor for IM (OR, 2.35; 95% CI: 1.23–4.51, p = 0.010). In contrast, neither patient age (<50) nor aggressive features (e.g., LVI) were associated with IM.ConclusionLack of a definitive presurgical diagnosis was associated with a two-fold increase of IM in BCS; other risk factors were dense breasts, large invasive cancers, and DCIS.     

The effect of core stability and general exercise on abdominal muscle thickness in non-specific chronic low back pain using ultrasound imaging

Background: There is a controversy regarding whether core stability exercise (CSE) is more effective than general exercise (GE) for chronic LBP. To compare different exercises regarding their effect on improving back strength and stability, performance of abdominal muscles is a useful index. Ultrasound imaging for measuring muscle thickness could be used to assess muscle performance. Objective: The aim of this study was to compare CSE and GE in chronic LBP using ultrasound imaging for measurement of thickness of the deep stabilizing and main global trunk muscles in non-specific chronic LBP. Methods: Each program included 16 training sessions three times a week. Using ultrasound imaging, four transabdominal muscle thickness were measured before and after the intervention. Disability and pain were measured as secondary outcomes. Results: After the intervention on participants (n = 43), a significant increase in muscle thickness (hypertrophy) was seen only in right and left rectus abdominis in the GE group, but significant difference to the CSE group was only on the right side. Disability and pain reduced within the groups without a significant difference in the change between them. Conclusions: The present results provided evidence that only GE increased right and left rectus muscle thickness. The only significant difference between CSE and GE groups was the right rectus thickness. As rectus is a global muscle, the effect of GE on strength improvement (one side stronger than the other) may have a negative effect on motor control of lumbopelvic muscles and possibly increase the risk of back pain occurring or becoming worse, though this was not observed in the present study.     

Evaluation of the presence of VEGF,BMP2 and CBFA1 proteins in autogenous bone graft: Histometric and immunohistochemical analysis

AimsThe purpose of this study was to evaluate the expression of proteins that participate in the osteoinduction stage (VEGF, BMP2 and CBFA1) of the process of bone regeneration of defects created in rat calvariae and filled with autogenous bone block grafts.Materials and methods10 adult male rats (Rattus norvegicus albinus, Wistar) were used, who received two bone defects measuring 5 mm each in the calvariae. The bone defects constituted two experimental groups (n = 10): Control Group (CONT) (defects filled with a coagulum); Graft Group (GR) (defects filled with autogenous bone removed from the contralateral defect). The animals were submitted to euthanasia at 7 and 30 days post-operatively.ResultsQuantitative analysis demonstrated significantly greater bone formation in Group GR, but the presence of the studied proteins was significantly greater in the CONT Group in both time intervals of observation.ConclusionIt was not possible in this study in cortical bone block groups to detect the osteoinductive proteins in a significant amount during the repair process.