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Agreement between three-dimensional planimetry and mitral navigation method in the assessment of mitral valve area in rheumatic severe mitral stenosis
Acta Cardiologica ( IF 1.6 ) Pub Date : 2020-05-26 , DOI: 10.1080/00015385.2020.1764208
Gulay Gök 1 , Tufan Cinar 2 , Dursun Duman 1 , Zekeriya Nurkelam 1
Affiliation  

Abstract

Introduction

Rheumatic heart disease predisposes to structural changes in the mitral valve including commissural fusion and calcification with subsequent narrowing of the mitral valve orifice resulting in rheumatic mitral stenosis (RMS). To define the best therapeutic strategy, an accurate measurement of mitral valve area (MVA) for RMS is of paramount importance. The propose of the present study was to assess the agreement between the mitral navigation method (MVN) and three-dimensional (3D) planimetry in the assessment of MVA in patients with RMS.

Methods

Patients who were diagnosed with a different degree of mitral stenosis with the standard transthoracic echocardiography methods such as the pressure half time and planimetry underwent 3D transesophageal echocardiography (TEE) examination. 3D TEE zoom mitral valve planimetry was measured in the diastolic frame during the mitral valve’s largest opening. By using MVN software of the Philips Q-Lab, MVA was measured at its maximum diastolic opening. Both 3D planimetry (3DPL) and MVN were measured at the mid diastole during the mitral valve’s largest opening.

Results

In this retrospective analysis, we examined consecutive 37 RMS patients (mean age 51.1 ± 11.6 years, 31 patients were female). MVA measured by the MVN method was found to be highly correlated with the 3D MVA measured by 3DPL (r = 0.937, p<.001).

Conclusions

Based on our results, we showed that the MVN method may be additionally used in detecting the severity of RMS.



中文翻译:

三维平面测量法与二尖瓣导航法评估风湿性重度二尖瓣狭窄二尖瓣面积的一致性

摘要

介绍

风湿性心脏病易导致二尖瓣结构变化,包括连合融合和钙化,随后二尖瓣口变窄,导致风湿性二尖瓣狭窄 (RMS)。为了确定最佳治疗策略,准确测量 RMS 的二尖瓣面积 (MVA) 至关重要。本研究的提议是评估二尖瓣导航方法 (MVN) 和三维 (3D) 平面测量在评估 RMS 患者 MVA 中的一致性。

方法

使用标准经胸超声心动图方法(例如压力半衰期和平面测量法)诊断为不同程度二尖瓣狭窄的患者接受了 3D 经食管超声心动图(TEE)检查。3D TEE 变焦二尖瓣平面测量是在二尖瓣最大开口期间在舒张期测量的。通过使用飞利浦 Q-Lab 的 MVN 软件,在最大舒张期测量 MVA。3D 平面测量 (3DPL) 和 MVN 均在二尖瓣最大开口期间的舒张中期进行测量。

结果

在这项回顾性分析中,我们连续检查了 37 名 RMS 患者(平均年龄 51.1 ± 11.6 岁,31 名患者为女性)。发现通过 MVN 方法测量的 MVA 与通过 3DPL 测量的 3D MVA 高度相关(r  = 0.937,p <.001)。

结论

根据我们的结果,我们表明 MVN 方法可以额外用于检测 RMS 的严重性。

更新日期:2020-05-26
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