中华临床医师杂志(电子版)
中華臨床醫師雜誌(電子版)
중화림상의사잡지(전자판)
CHINESE JOURNAL OF CLINICIANS(ELECTRONIC VERSION)
2013年
23期
10510-10513
,共4页
霍学震%赵雯娜%李姗%董晓楠%付秀秀%陈作元
霍學震%趙雯娜%李姍%董曉楠%付秀秀%陳作元
곽학진%조문나%리산%동효남%부수수%진작원
冠状血管%尼可地尔%心室功能%慢血流%斑点追踪
冠狀血管%尼可地爾%心室功能%慢血流%斑點追蹤
관상혈관%니가지이%심실공능%만혈류%반점추종
Coronary vessels%Nicorandil%Ventricular function%Coronary slow flow%Speckle tracking
目的:探讨冠状动脉左前降支(LAD)慢血流(CSF)时左心室壁节段及整体心肌功能的改变,以及尼可地尔对其心肌功能有无改善作用。方法入选因心绞痛症状行冠状动脉造影,造影结果为LAD慢血流的患者36例为慢血流组;造影结果正常者20例为对照组;两组分别于造影后24 h内应用常规超声测量左心室舒张末期内径(LVIDd)、收缩末期内径(LVIDs)、左心室射血分数(LVEF)以及二尖瓣血流频谱中的舒张早期峰值流速(E)和舒张晚期峰值流速(A),并计算E/A比值。应用GE Echo PAC软件采用二维斑点追踪技术测量仅由LAD供血的6个左心室室壁节段收缩期的纵向应变(LS)峰值。慢血流组患者给予尼可地尔5 mg、每日3次治疗90 d后观察胸痛症状改善程度,并再次测量E峰、A峰、E/A比值以及单纯LAD供血节段心肌收缩期的LS峰值。结果造影后24 h内慢血流组与对照组相比LVIDd、LVIDs、LVEF差异无统计学意义,E峰、A峰、E/A等指标差异有统计学意义(P<0.05);单独LAD供血的6个心肌节段中有4个与对照组相比收缩期LS峰值差异有统计学意义(P<0.05),两个节段收缩期LS峰值差异无统计学意义(P>0.05)。尼可地尔治疗3个月后慢血流组中27例胸痛症状有不同程度减轻;慢血流组尼可地尔治疗前后相比E峰、E/A差异有统计学意义(P<0.05),A峰差异无统计学意义(P>0.05);尼可地尔治疗前慢血流组与对照组相比LS峰值差异存在统计学意义中的4个节段与治疗后相比3个心肌节段的LS峰值差异存在统计学意义(P<0.05),1个节段LS峰值差异无统计学意义(P>0.05)。结论 LAD慢血流时常规超声反映其左心室整体舒张功能减退,但整体收缩功能正常;而采用二维斑点追踪技术测量的LS峰值减低表明其单独供血的心肌节段收缩功能已有明显减退;尼可地尔对慢血流患者胸痛症状及心肌功能的改善作用提示其是治疗慢血流的有效药物。
目的:探討冠狀動脈左前降支(LAD)慢血流(CSF)時左心室壁節段及整體心肌功能的改變,以及尼可地爾對其心肌功能有無改善作用。方法入選因心絞痛癥狀行冠狀動脈造影,造影結果為LAD慢血流的患者36例為慢血流組;造影結果正常者20例為對照組;兩組分彆于造影後24 h內應用常規超聲測量左心室舒張末期內徑(LVIDd)、收縮末期內徑(LVIDs)、左心室射血分數(LVEF)以及二尖瓣血流頻譜中的舒張早期峰值流速(E)和舒張晚期峰值流速(A),併計算E/A比值。應用GE Echo PAC軟件採用二維斑點追蹤技術測量僅由LAD供血的6箇左心室室壁節段收縮期的縱嚮應變(LS)峰值。慢血流組患者給予尼可地爾5 mg、每日3次治療90 d後觀察胸痛癥狀改善程度,併再次測量E峰、A峰、E/A比值以及單純LAD供血節段心肌收縮期的LS峰值。結果造影後24 h內慢血流組與對照組相比LVIDd、LVIDs、LVEF差異無統計學意義,E峰、A峰、E/A等指標差異有統計學意義(P<0.05);單獨LAD供血的6箇心肌節段中有4箇與對照組相比收縮期LS峰值差異有統計學意義(P<0.05),兩箇節段收縮期LS峰值差異無統計學意義(P>0.05)。尼可地爾治療3箇月後慢血流組中27例胸痛癥狀有不同程度減輕;慢血流組尼可地爾治療前後相比E峰、E/A差異有統計學意義(P<0.05),A峰差異無統計學意義(P>0.05);尼可地爾治療前慢血流組與對照組相比LS峰值差異存在統計學意義中的4箇節段與治療後相比3箇心肌節段的LS峰值差異存在統計學意義(P<0.05),1箇節段LS峰值差異無統計學意義(P>0.05)。結論 LAD慢血流時常規超聲反映其左心室整體舒張功能減退,但整體收縮功能正常;而採用二維斑點追蹤技術測量的LS峰值減低錶明其單獨供血的心肌節段收縮功能已有明顯減退;尼可地爾對慢血流患者胸痛癥狀及心肌功能的改善作用提示其是治療慢血流的有效藥物。
목적:탐토관상동맥좌전강지(LAD)만혈류(CSF)시좌심실벽절단급정체심기공능적개변,이급니가지이대기심기공능유무개선작용。방법입선인심교통증상행관상동맥조영,조영결과위LAD만혈류적환자36례위만혈류조;조영결과정상자20례위대조조;량조분별우조영후24 h내응용상규초성측량좌심실서장말기내경(LVIDd)、수축말기내경(LVIDs)、좌심실사혈분수(LVEF)이급이첨판혈류빈보중적서장조기봉치류속(E)화서장만기봉치류속(A),병계산E/A비치。응용GE Echo PAC연건채용이유반점추종기술측량부유LAD공혈적6개좌심실실벽절단수축기적종향응변(LS)봉치。만혈류조환자급여니가지이5 mg、매일3차치료90 d후관찰흉통증상개선정도,병재차측량E봉、A봉、E/A비치이급단순LAD공혈절단심기수축기적LS봉치。결과조영후24 h내만혈류조여대조조상비LVIDd、LVIDs、LVEF차이무통계학의의,E봉、A봉、E/A등지표차이유통계학의의(P<0.05);단독LAD공혈적6개심기절단중유4개여대조조상비수축기LS봉치차이유통계학의의(P<0.05),량개절단수축기LS봉치차이무통계학의의(P>0.05)。니가지이치료3개월후만혈류조중27례흉통증상유불동정도감경;만혈류조니가지이치료전후상비E봉、E/A차이유통계학의의(P<0.05),A봉차이무통계학의의(P>0.05);니가지이치료전만혈류조여대조조상비LS봉치차이존재통계학의의중적4개절단여치료후상비3개심기절단적LS봉치차이존재통계학의의(P<0.05),1개절단LS봉치차이무통계학의의(P>0.05)。결론 LAD만혈류시상규초성반영기좌심실정체서장공능감퇴,단정체수축공능정상;이채용이유반점추종기술측량적LS봉치감저표명기단독공혈적심기절단수축공능이유명현감퇴;니가지이대만혈류환자흉통증상급심기공능적개선작용제시기시치료만혈류적유효약물。
Objective To evaluate left ventricular global and regional function in patients with left anterior descending coronary slow flow and effects of Nicorandil. Methods A total of 56 patients underwent coronary angiography for angina were enrolled. Of those 36 with left anterior descending coronary slow flow as CSF group, 20 patients with normal coronary angiography as control group. Left ventricular intemal dimension diastole (LVIDd), left ventricular intemal dimension systole(LVIDs), 1eft ventricular ejection fraction(LVEF), E peak, A peak and E/A ratio were assessed using routine heart Doppler ultrasonic. Longitudinal Strain(LS) of the six segments supplied only by left anterior descending artery regional were assessed using two dimensional speckle tracking imaging.All quotas of the CSF group were assessed after treatment with Nicorandil 5 mg three times a day. Results There was no significant difference in LVIDd, LVIDs and LVEF between the CSF group and the control group. Compared with the control group, the CSF group's E peak,E/A ratio decreased and A peak increased. Ls in four of the six segments that single supplied by LAD decreased. Treatment with Nicorandil alleviate the angina of 27 patients of the CSF group in vary degrees and significantly increased E peak and E/A ratio. Three of the four segments' Ls has significant difference and one of the four Segments' Ls has no significant difference after treatment. Conclusion Routine heart Doppler ultrasonic suggests that 1eft ventricular global diastolic function impaired and global systolic function not affected in patients with coronary slow flow. Two dimensional speckle tracking imaging suggest that regional systolic function has impaired in patients with coronary slow flow. Nicorandil maybe a effective drug for improve CSF patients' myocardial function and alleviate the angina symptom.