Kizilca O, Demircan T, Isik S, Yılmaz N, Kir M, Uzuner N, Unal N.Echocardiography. 2020 Oct;37(10):1634-1641. doi: 10.1111/echo.14860. Epub 2020 Sep 19.
Abstract
Background: Cystic fibrosis may lead to left ventricular (LV) dysfunction. This dysfunction can be documented by methods such as tissue Doppler echocardiographic (TDI) imaging and two-dimensional speckle tracking echocardiography (STE) in early stage.
Study design: This was prospective cohort study.
Methods: A total of 34 patients diagnosed with cystic fibrosis (mean age and SD 9.9 ± 4.9 years) and 37 healthy control subjects with a comparable gender and age distribution (mean age 9.8 ± 4.3) were studied. The results for the two groups were compared along with the results of published reports.
Results: No significant relationship was found between the groups in terms of systolic and diastolic measurements of the interventricular septum and posterior left ventricular wall, and ejection fraction (P > .05). Myocardial performance indexes of left ventricular free wall and interventricular septum increased in the patient group compared with the controls (P < .05). As measured by STE, seven segments in the LV myocardial longitudinal strain and three segments in the LV myocardial circumferential strain showed significant reductions in patients with cystic fibrosis compared with controls (P < .05). The longitudinal global, circumferential global, and total global strain values had no significant difference between the groups (P > .05). Longitudinal strain rates and circumferential strain rates were both lower in five segments in the patient group (P < .05).
Conclusions: Tissue Doppler echocardiographic imaging and STE may help identifying subclinical LV dysfunction in cystic fibrosis patients with unremarkable conventional echocardiography. They may be considered for the routine follow-up of cystic fibrosis patients.
Keywords: Doppler tissue imaging; cystic fibrosis; strain echocardiography; ventricular dysfunction.
Uzman Dr. Nuh YILMAZ
Specialist Dr. Nuh Yılmaz, after his medical education at Ege University Faculty of Medicine, he completed his residency in Pediatrics at İzmir Dr. Behçet Uz Pediatric Diseases and Surgery Training and Research Hospital. He completed his subspecialty training in Pediatric Cardiology at Dokuz Eylül University Faculty of Medicine. After working as a Pediatric Cardiology Specialist at Liv Hospital Vadi Istanbul Hospital and Istanbul Medical Park Bahçeşehir Hospital, he started accepting patients at İskenderun Gelişim Hospital.