Journals / Anadolu Kardiyoloji Dergisi / 2005 / Cilt: 5 - Sayı: 2

İzole soldan-sağa şantlı lezyonu olan çocuklarda miyokard performans indeksi

The myocardial performance index in children with isolated left-to right shunt lesions

Pages
108–111
Publication Date
2022-10-10
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

No significant differences in the left and right ventricular myocardial performance indexes were seen between patients with left-to-right shunt lesions and control subjects.Conclusion: This study documents that the myocardial performance index is a quantitative measure of ventricular function that appears to be relatively independent of changes in preload.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Objective: The myocardial performance index (MPI) measures the ratio of isovolumic time intervals to ventricular ejection time.
📊
Key Findings & Data:This study was designed to determine the impact of altered preload on left and right ventricular myocardial performance index in the clinical setting of left-to-right lesions.
💡
Conclusion & Impact:No significant differences in the left and right ventricular myocardial performance indexes were seen between patients with left-to-right shunt lesions and control subjects.Conclusion: This study documents that the myocardial performance index is a quantitative measure of ventricular function that appears to be relatively independent of changes in preload.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: The myocardial performance index (MPI) measures the ratio of isovolumic time intervals to ventricular ejection time. The effects of altered ventricular preload or afterload on MPI have yet to be determined. This study was designed to determine the impact of altered preload on left and right ventricular myocardial performance index in the clinical setting of left-to-right lesions. Methods: The left and right ventricular myocardial performance indexes were measured in 17 patients with atrial septal defect (ages 6 to 148 months), 23 patients with ventricular septal defect (ages 2 to 160 months), and 24 healthy children (ages 3 to 160 months). A complete 2- dimensional and Doppler echocardiographic examination was performed in all study groups.Results: In patients with atrial septal defect, ventricular septal defect, and control group subjects, the left ventricular MPI was 0.38, 0.37 and 0.32, respectively, and the right ventricular MPI was 0.24, 0.21, and 0.20, respectively. No significant differences in the left and right ventricular myocardial performance indexes were seen between patients with left-to-right shunt lesions and control subjects.Conclusion: This study documents that the myocardial performance index is a quantitative measure of ventricular function that appears to be relatively independent of changes in preload.

Özet

Amaç: Miyokard performans indeksi (MPİ) izovolümik zaman aralıklarının ejeksiyon zamanına bölünmesi ile elde edilir. Ventriküllerin ön ve art yük değişikliklerinde bu indeksin nasıl etkilendiği araştırılmalıdır. Bu çalışma izole soldan sağa şantların neden olduğu ön yük değişikliklerinde sağ ve sol ventriküler miyokard performans indeksinin nasıl etkilendiğini araştırmak amacı ile planlandı. Yöntem: Yaşları 6 ay ile 148 ay arasında 17 atriyal septal defekt’li olguda, yaşları 2 ay ile 160 ay arasında 23 ventriküler septal defekt’li hastada ve yaşları 3 ay ile 160 ay arasında 24 sağlıklı çocukta sol ve sağ ventrikül için miyokard performans indeksi ölçüldü. Tüm çalışma grubuna MPI hesaplaması için gerekli iki-boyutlu ve Doppler ekokardiyografi ölçümleri hem sağ ventrikül, hem de sol ventrikülden yapıldı.Bulgular: Sol ventrikül için miyokard performans indeksi atriyal septal defekti ve ventriküler septal defekti olan hastalarda ve kontrol grubundaki sağlıklı çocuklarda sırası ile 0.38, 0.37 ve 0.32 iken sağ ventrikül için MPİ sırası ile 0.24, 0.21 ve 0.20 olarak bulundu. Gruplar arasında sol ve sağ ventrikül MPİ yönünden istatistiksel açıdan anlamlı bir fark yoktu.Sonuç: Bu çalışma ile ventrikül fonksiyonlarını ölçmeye yarayan miyokard performans indeksinin ön yük değişikliklerinden bağımsız olduğu gösterildi.

🔖

Cite This Article

BAYSAL, T., ORAN, B., KARAASLAN, S., DOĞAN, M., ÇİMEN, D. (2022). İzole soldan-sağa şantlı lezyonu olan çocuklarda miyokard performans indeksi. Anadolu Kardiyoloji Dergisi, Cilt: 5 - Sayı: 2, 108–111. https://ajindex.com/articles/437434

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (14)

  1. Auslender M. Pathophysiology of pediatric heart failure. Prog Ped Cardiol 2000; 11: 175-84
  2. Remme WJ, Swedberg K. Guidelines for the diagnosis and treatment of chronic heart failure. Eur Heart J 2001; 22: 1527-60
  3. Bruch C, Schmermund A, Marin D, et al. Tei index in patients with mild-to-moderate congestive heart failure. Eur Heart J 2000; 21: 1888-95
  4. Dujardin KS, Tei C, Yeo TC, et al. Prognostic value of a Doppler index combining systolic and diastolic performance in idiopathic-dilated cardiomyopathy. Am J Cardiol 1998; 82: 1071-6
  5. Eidem BW, O’Leary PW, Tei C, Seward JB. Usefulness of the myocardial performance index for assessing right ventricular function in congenital heart disease. Am J Cardiol 2000; 86: 654-8
  6. Tei C, Dujardin KS, Hodge DO, et al. Doppler index combining systolic and diastolic myocardial performance: clinical value in cardiac amyloidosis. J Am Coll Cardiol 1996; 28: 658-64
  7. Yeo TC, Dujardin KS, Tei C, Mahoney MD, Seward JB. Value of a Doppler-derived index combining systolic and diastolic time intervals in predicting outcome in primary pulmonary hypertension. Am J Cardiol 1998; 81: 1157-61
  8. Moller JE, Poulsen SH, Egstrup K. Effect of preload alternations on a new Doppler echocardiographic index of combined systolic and diastolic performance. J Am Soc Echocardiogr 1999; 12: 1065-72
  9. Tei C, Nishimura RA, Seward JB, Tajik AJ. Noninvasive Dopplerderived myocardial performance index: correlation with simultaneous measurements of cardiac catheterization measurements. J Am Soc Echocardiogr 1997;10:169-78
  10. Eto G, Ishii M, Tei C, et al. Assessment of global left ventricular function in normal children and in children with dilated cardiomyopathy. J Am Soc Echocardiogr 1999; 12: 1058-64
  11. Yock PG, Popp RL. Noninvasive estimation of right ventricular systolic pressure by Doppler ultrasound in patients with tricuspid regurgitation. Circulation 1984; 70: 657-62
  12. Sahn DJ, De Maria A, Kisslo J, Weyman A. The committee on Mmode standardization of the American Society of Echocardiography: results of a survey of echocardiographic measurements. Circulation 1978; 58: 1072-83
  13. Quinones MA, Waggoner AD, Reduto LA, et al. A simplified and accurate method for determining ejection fraction with two-dimensional echocardiography. Circulation 1981; 64: 744-53
  14. Burwash IG, Otto CM, Pearlman AS. Use of Doppler-derived left ventricular time intervals for noninvasive assessment of systolic function. Am J Cardiol 1993; 72