Comparison of Postinjection Protocols After Intratendinous Achilles Platelet-Rich Plasma Injections: A Cadaveric Study

The purpose of the present investigation was to evaluate the distribution of intratendinous injected platelet-rich plasma (PRP) after 15 minutes of prone resting versus immediate manipulation simulating weightbearing. Ten cadaveric lower limbs were injected under ultrasound guidance with PRP dyed with India blue ink. The dyed PRP was injected into the mid-portion of the Achilles tendon, after which 5 specimens were placed in the prone position for 15 minutes (simulating rest) and the remaining 5 specimens were manipulated through 100 cycles of ankle dorsiflexion and plantarflexion (simulating walking). Thereafter, the specimens were dissected, and the distribution of the India blue dye was ascertained. In the simulated rest group, every specimen showed dyed PRP in the Achilles tendon and in the space between the paratenon and tendon. The median craniocaudal spread of the PRP was 140 (range 125 to 190) mm. In 4 of the simulated rest tendons (80%), the distribution of PRP extended across the entire transverse plane width of the tendon. In the simulated motion group, every specimen showed dyed PRP extending across the entire transverse plane width of the tendon and in the space between the paratenon and tendon. The median craniocaudal spread was 135 (range 115 to 117) mm. No statistically significant difference was found in the amount of craniocaudal spread between the simulated motion and rest groups. In conclusion, it does not appear to matter whether the ankle has been moved through its range of motion or maintained stationary during the first 15 minutes after PRP injection into the mid-portion of the Achilles tendon. The precise meaning of this information in the clinical realm remains to be discerned.     

冠状动脉严重弯曲钙化病变56例介入治疗中钢丝球囊锚定技术应用的效果观察

目的观察钢丝球囊锚定技术在严重弯曲伴钙化的冠状动脉病变介入治疗中的应用效果。方法选择56例经冠脉造影明确为严重弯曲伴钙化病变,在强支撑指引导管、病变部位充分球囊预扩张和双钢丝等技术基础上运用分支锚定技术行支架植入失败的患者,采用钢丝球囊锚定技术,评价其临床效果并观察并发症发生情况。结果 47例采用钢丝球囊锚定技术成功植入支架,手术成功率达83.93%,其中2例术中发生慢血流现象,予以冠脉内注射盐酸替罗非班和地尔硫后恢复血流;另外9例因钙化严重,经血管内超声确认系360度内膜下严重钙化,改行冠脉内旋磨术后成功植入支架。结论钢丝球囊锚定技术处理严重弯曲钙化冠状动脉病变安全、有效。     

SIRT1基因启动子DNA甲基化在老年钙化性心脏瓣膜病中的临床意义研究

[摘 要] 目的 探讨沉默信息调节因子1（SIRT1）基因启动子区域DNA甲基化修饰变化与老年钙化性心脏瓣膜病的相关性。方法 选取我院 2020年2月 ~ 2021年1月就诊的老年钙化性心脏瓣膜病患者60例,另纳入同期体检的健康老年40例作为对照。甲基化特异性PCR检测SIRT1基因启动子区域甲基化率,荧光定量PCR检测SIRT1 mRNA表达,ELISA检测SIRT1蛋白和NF-κB蛋白表达。结果 观察组SIRT1基因启动子区域甲基化率为63.3%（38/60）,显著高于对照组的37.5%（15/40）（P<0.01）。甲基化组SIRT1 mRNA的2-△△Ct值为0.22±0.05,显著低于非甲基化组的0.36±0.07（P<0.01）,甲基化组SIRT1 蛋白表达水平为82.34±11.56 μmol/L,显著低于非甲基化组的143.24±18.73 μmol/L（P<0.01）,甲基化组NF-κB蛋白表达水平为126.48±17.32 μmol/L,显著高于非甲基化组的41.53±7.26 μmol/L（P<0.01）。老年钙化性心脏瓣膜病SIRT1 mRNA与NF-κB蛋白表达呈显著负相关（P<0.05）,SIRT1蛋白表达与NF-κB蛋白表达呈显著负相关（P<0.05）。结论 老年钙化性心脏瓣膜病患者SIRT1基因启动子区域高甲基化变化,导致SIRT1表达减低,激活炎症反应,可能参与其致病过程。     

In patients undergoing percutaneous coronary intervention with rotational atherectomy radial access is safer and as efficient as femoral access

Introduction

Transfemoral approach (TFA) may be preferred access site in order to facilitate complex percutaneous procedures such as rotational atherectomy (RA). Notwithstanding, there is a growing evidence that transradial approach (TRA) is associated with lower access site complication rates and even lower mortality. The aim was to assess in‐hospital and 1‐year outcomes in patients undergoing RA using TRA, in comparison to TFA.

Methods

A single center observational study included all consecutive patients, who underwent RA from 2010 to 2015. Primary endpoints were procedural success, in‐hospital mortality and major adverse cardiovascular events (MACE). Secondary endpoints were 1‐year all‐cause mortality and MACE.

Results

The study included 177 patients, 69% in TRA group and 31% in TFA group. Except for male sex and logistic Euroscore II there were no differences in common risk factors. There was no difference in procedural success (95% vs 87%, P = 0.07) with even a trend in favor of TRA. Performing RA via TRA lower amount of contrast volume (P = 0.009) was used and hospital stay after the procedure was shorter (P = 0.004). Periprocedural complication rates were similar, however patients with TFA had significantly higher rate of major access site bleedings (13% vs 1%, P = 0.001), with no differences in mortality and other adverse events both in‐hospital and during 1‐year observation.

Conclusions

Even though RA is a demanding technique, when performed via TRA allows to maintain the same procedural success and long‐term results in comparison to TFA, reduces in‐hospital major access site bleedings, lowers the amount of contrast media and shortens hospital stay.

     

关节镜清理联合富血小板血浆治疗冈上肌钙化性肌腱炎的疗效观察

目的 探讨关节镜清理联合富血小板血浆（PRP）治疗冈上肌钙化性肌腱炎的临床效果。方法选取该院采用关节镜清理与PRP治疗冈上肌钙化性肌腱炎的患者46例,分为实验组和对照组,各23例。实验组行肩关节镜下钙化灶清理+PRP注射,对照组行单纯关节镜清理,比较两组的治疗效果。结果 所有患者均得到有效随访。实验组中,5例行肩袖修补术（3例为术前确诊肩袖撕裂,2例为钙化灶较大,清理后行肩袖修补）,对照组中,3例行肩袖修补术（2例为术前确诊肩袖撕裂,1例为钙化灶较大,清理后行肩袖修补）。两组患者术后1个月视觉模拟评分法（VAS）明显低于术前,美国肩肘外科协会（ASES）评分明显高于术前,差异均有统计学意义（P <0.05）。实验组术后1个月VAS明显低于对照组,术后1个月ASES评分明显高于对照组,差异均有统计学意义（t=-5.52,t=8.73,P=0.001）。结论 关节镜清理联合PRP治疗冈上肌钙化性肌腱炎,是一种有效、微创的方法。关节镜可以尽量清除钙盐,能对肩袖损伤范围精确评估,并对明确的、损伤较大的肩袖损伤,行带线锚钉肩袖修补。同时,结合PRP注射,可加快损伤肩袖的修复,减轻疼痛,加速...