Three-dimensional speckle tracking imaging in evaluation on left ventricular systolic function of patients with acute carbon monoxide poisoning
10.13929/j.1003-3289.201809148
- Author:
Yanhua CUI
1
Author Information
1. Department of Ultrasound, Shanxi Provincial People's Hospital
- Publication Type:Journal Article
- Keywords:
Carbon monoxide poisoning;
Three-dimensional speckle tracking imaging;
Ventricular function, left
- From:
Chinese Journal of Medical Imaging Technology
2019;35(6):848-852
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To evaluate the impact of acute carbon monoxide poisoning on left ventricular systolic function with three-dimensional speckle tracking imaging (3D-STI). Methods: Totally 109 patients with acute carbon monoxide poisoning (study group) were enrolled and divided into mild (n=36), moderate (n=40) and severe (n=33) subgroups. And 105 healthy volunteers were selected as control group. 3D-STI was performed 1 hour and 1 week after poisoning, respectively. The levels of carboxyhemoglobin (HbCO) and serum cardiac troponin I (cTnI) were measured. The difference and correlation of the indexes were analyzed between the study group and the control group. Results: One hour after acute carbon monoxide poisoning, no significant difference of global longitudinal strain (GLS), global area strain (GAS), global circumferential strain (GCS), global radial strain (GRS) nor left ventricular ejection fraction (LVEF) was found between mild subgroup and control group (all P>0.05), while HbCO and cTnI in mild subgroup were higher than those in control group (both P<0.05), GLS and GAS in moderate subgroup were lower than those in control group (both P<0.05), and HbCO, cTnI were higher than those in control group (both P<0.05), GLS, GAS, GCS, GRS and LVEF in the severe subgroup were lower than those in control group (all P<0.05), HbCO and cTnI were higher than those in the control group (both P<0.05). One week after acute carbon monoxide poisoning, there was no significant difference of GLS, GAS, GCS, GRS, LVEF, HbCO nor cTnI among the mild, moderate subgroups and the control group (all P>0.05); GAS in severe subgroup was lower than that in control group (P<0.05), cTnI was higher than that in control group (P<0.05). One hour after acute carbon monoxide poisoning, serum cTnI was negatively correlated with GLS and GAS in the study group (r=-0.626, -0.640, both P<0.05). Conclusion: 3D-STI can early diagnose damage of left ventricular systolic dysfunction caused by acute carbon monoxide poisoning. GAS decreases with the increase of serum cTnI content, which is a good indicator of left ventricular dysfunction in patients with acute carbon monoxide poisoning.
