摘要
目的探讨左心房容积追踪技术(LAVT)评价肺动脉高压患者右心房功能。方法选择肺动脉高压患者41例作为肺动脉高压组,同时选择与肺动脉高压组患者年龄和性别相匹配的健康体检者37例作为对照组。应用LAVT获取右心房最大容积(RAVman)、右心房收缩期前容积(RAVpre)及右心房最小容积(RAVe.)、收缩期右心房充盈速率峰值(dv/dtS)、舒张早期右心房排空速率峰值(dv/dtE)及舒张晚期右心房排空速率峰值(dv/dtA),计算右心房被动排空容积(RAVp)、右心房被动排空分数(RAVpEF)、右心房主动排空容积(RAVa)、右心房主动排空分数(RAVaEF)、右心房总排空容积(RAVt)、右心房总排空分数(RAVtEF),所有右心房容积指标均经体表面积校正得到右心房容积指数(RAVI)。结果肺动脉高压组RAVI—RAVI椰aAVtpre、RAVIt、RAVIa、dv/dtS、dv/d认显著高于对照组[(78.39±49.35)ml/m2比(24.80±11.91)ml/m2、(62.59±46.56)ml/m2比(17.46±8.40)ml/m2、(70.12±48.03)ml/m。比(20.02±9.46)ml/m2、(18.77±11.47)m]/m2比(9.35±6.74)ml/m2、(8.53±9.81)ml/m。比(3.25±3.00)ml/m2、(145.85-I-80.56)ml/s比(86.44±48.46)ml/s、(155.63-I-126.47)ml/s比(67.74±33.27)ml/s],RAVIp显著低于对照组[(6.09±5.16)m1]m2比(10.23±11.12)ml/m2],差异均有统计学意义(尸〈0.05),两组RAVItEF、RAVIpEF、RAVIaEF、dv/dtE比较差异无统计学意义(P〉0.05)。结论肺动脉高压患者右心房助力泵功能、存储器功能增强,管道功能减低,LAvT可无创性评价肺动脉高压患者右心房功能。
Objective To probe into the application of left atrial volume tracking technique(LAVT) on the evaluation of right atrial function in patients with pulmonary hypertension. Methods Forty-one patients with pulmonary hypertension (pulmonary hypertension group) and 37 control subjects (control group) were involved. Right atrial maximal volume (RAVman), right atrial presystolic volume (RAVpre), right atrial minimal volume (RAV), systolic right atrial filling rate (dv/dtS), early diastolic right atrial emptying rate (dv/dtE) and late diastolic right atrial emptying rate (dv/dtA) was derived by LAVT. Right atrial passive emptying volume (RAVp), right atrial passive emptying fraction (RAVpEF), right atrial active emptying volume (RAVa), right atrial active emptying fraction(RAVaEF), right atrial total emptying volume(RAVt) and right atrial total emptying fraction (RAVtEF) was calculated. All the right atrial volume parameter was corrected by body surface area to obtain right atrial volume index (RAVI). Results RAVL, RAVIm, RAVIpre, RAVIt, RAVIa, dv/dtS and dv/dtA in pulmonary hypertension group was higher than that in control group [ (78.39 ± 49.35 ) ml/m2 vs. (24.80 ± 11.91 ) ml/m2, (62.59 ± 46.56) ml/m2 vs.( 17.46 + 8.40) ml/m2, (70.12 ± 48.03 ) ml/m2 vs. (20.02 ± 9.46 ) ml/m2, ( 18.77 ± 11.47 ) ml/m2 vs. (9.35 ± 6.74) ml/m2, (8.53± 9.81 ) ml/m2 vs. (3.25 ± 3.00) ml/m2, ( 145.85 ± 80.56) ml/s vs. ( 86.44 ± 48.46 ) ml/s, ( 155.63 ± 126.47 ) ml/s vs. (67.74 ± 33.27 ) ml/s 1, and RAVIp in pulmonary hypertension group was lower than that in control group [ (6.09 ± 5.16) ml/m2 vs. (10.23 ± 11.12 ) ml/m2 ], and there were significant differences (P 〈 0.05). But there were no significant differences in RAVItEF, RAVIpEF, RAVIaEF and dv/dtE between two groups (P 〉 0.05). Conclusions In patients with pulmonary hypertension, right atrial booster pump function and reservoir fun
出处
《中国医师进修杂志》
2013年第16期7-10,共4页
Chinese Journal of Postgraduates of Medicine
关键词
超声心动描记术
压力
高血压
肺性
心房功能
右
左心房容积追踪技术
Echocardiography, stress
Hypertension,pulmonary
Atrial function,right
Left atrial volume tracking technique