Telefon ve e-posta Desteği
Sıkça Sorulan Sorular
Yazarlar İçin Teknik Bilgiler
İletişim Bilgileri
Ana Sayfaya Dönüş
 

Kongre Takvimi
Buradaki bilgiler JournalAgent™ online dergicilik sisteminden alınmaktadır.

The Anatolian Journal of Cardiology

[Anatol J Cardiol]
Anatol J Cardiol. 2017; 18(2): 90-98 | DOI: 10.14744/AnatolJCardiol.2017.7614  

The impact of cardiac rhythm on the mitral valve area and gradient in patients with mitral stenosis

Hasan Arı, Selma Arı, Alper Karakuş, Sencer Camcı, Kübra Doğanay, Ahmet Tütüncü, Mehmet Melek, Tahsin Bozat
Department of Cardiology, Bursa Postgraduate Hospital; Bursa-Turkey

Objective: The aim of this study was to evaluate the effect of cardiac rhythm on the echocardiographic mitral valve area (MVA) and transmitral gradient calculation in relation to net atrioventricular compliance (Cn).
Methods: Patients (n=22) with mild or moderate pure rheumatic mitral stenosis (MS) (MVA <2 cm2 and MVA >1 cm2) and atrial fibrillation (AF) were evaluated. All patients underwent transthoracic electrical DC cardioversion under amiodarone treatment. Nineteen of the 22 patients were successfully converted to sinus rhythm (SR). The patients were evaluated with transthoracic echocardiography before and two to three days after DC cardioversion. In order to deal with variable R-R intervals, the measurements were averaged on five to eight consecutive beats in AF. Cn was calculated with a previously validated equation [Cn (mL/mm Hg)=1.270 x MVA/E-wave downslope]. The Cn difference between AF and SR was calculated as follows: [(AF Cn−SR Cn)/AF Cn] x 100. The percentage gradient (mean or maximal) difference between AF and SR was calculated as follows: [AF gradient (mean or maximal) – SR gradient (mean or maximal)]/[AF gradient (mean or maximal)] x 100.
Results: The MVA was lower (MVA planimetric; 1.62±0.29 vs. 1.54±0.27; p=.003, MVA PHT; 1.66±0.30 vs. 1.59±0.26; p=0.01) but transmitral gradient (mean gradient; 6.49±2.51 vs. 8.89±3.52; p=0.001, maximal gradient: 16.94±5.11 vs. 18.57±4.54; p=0.01) and Cn values (5.37±0.77 vs. 6.26±0.64; p<0.001) were higher in the AF than SR. There was a significant correlation between Cn difference and transmitral gradient difference (mean and maximal) (Cn difference–mean gradient difference; r=0.46; p=0.05; Cn difference–maximal gradient difference; r=0.72; p=0.001).
Conclusion: Cardiac rhythm has a significant impact on echocardiographic evaluation of MVA, transmitral gradient, and Cn in patients with MS.

Keywords: echocardiography, mitral stenosis, atrial fibrillation


Hasan Arı, Selma Arı, Alper Karakuş, Sencer Camcı, Kübra Doğanay, Ahmet Tütüncü, Mehmet Melek, Tahsin Bozat. The impact of cardiac rhythm on the mitral valve area and gradient in patients with mitral stenosis. Anatol J Cardiol. 2017; 18(2): 90-98

Sorumlu Yazar: Hasan Arı, Türkiye


ARAÇLAR
Tam Metin PDF
Yazdır
Alıntıyı İndir
RIS
EndNote
BibTex
Medlars
Procite
Reference Manager
E-Postala
Paylaş
Yazara e-posta gönder

Benzer makaleler
PubMed
Google Scholar




 

 
 

Online Kongre Hizmetleri
Kongre Web Sitesi
Bildiri Özeti Toplama ve Değerlendirme
Online Kayıt ve Konaklama
Elektronik Poster (e-poster)
Video Podcast, WebCast
Bilimsel Program Düzenleyici
Bildiri Özeti ve Tam Metin CD'leri
 

Online Kurumsal Hizmetler
Dernekler İçin Web Siteleri
Hakemli Dergiler İçin Online Makale Toplama
   ve Değerlendirme

Uluslararası Dizin Danışmanlığı
PubMed®, LinkOut® Hizmetleri
Online Çalışma Grupları
 

Referans
Çalıştığımız Online Hakemli Dergiler
Destek Verdiğimiz Kongreler
Yazarlar İçin Teknik Bilgiler

İletişim
Bize Ulaşın
LookUs

 
 
1999 - 2019 © LookUs Scientific

Bu sitede sözü edilen uygulamalara ait teknoloji, uygulama metodu, ekran görünüşleri; ticari marka, ticari görünüm, kanun dışı rekabet ve başka kanunlarca; yerel ve uluslararası copyright düzenlemeleri ile korunmuştur. Site üzerindeki herhangi bir metin ve imaj LookUs Bilişim Hizmetleri Ltd.'nin açık ve net izni olmadan kopyalanamaz veya dağıtılamaz.
Metinler ve şekiller içinde geçen gerçek şirket ve ürün adları, ilgili firmaların ticari markaları olabilir.