The Clinical Manifestation of Straight Back Syndrome in Echocardiogram Performance

Abstract

Background: There were no studies on the mechanism of clinical manifestations of straight back syndrome. Our aim was to explore the mechanism of clinical symptoms of straight back syndrome.Methods: From February 2018 to February 2021, we included 4 patients (3 males and 1 female) with straight back syndrome as the experimental group, and 4 normal people matched with sex and BMI as the normal control group. Basic information of patients, laboratory examination, echocardiography in supine and standing position, chest film in positive and lateral position, basic information of control group and echocardiography in supine and standing position were collected. The differences of clinical data between the two groups were compared and analyzed. Results: There were significant differences in left ventricular outflow tract diameter, right ventricular outflow tract diameter and right ventricular outflow tract velocity in the experimental group (their P values were 0.035, 0.011 and 0.015, respectively), but there was no significant difference in left ventricular outflow tract velocity in the standing and supine position (P=0.638). The left ventricular outflow tract diameter, the right ventricular outflow tract diameter and the right ventricular outflow tract velocity in the experimental group were significantly different (P<0.05). The internal diameters of left ventricular outflow tract in upright position, supine position, right ventricular outflow tract, supine position, right ventricular outflow tract were20.50±1.91mm, 18.75±0.96mm;10.00±6.68mm, 15.45±6.06mm;124.25±40.29cm/s and 91.00±28.93cm/s, respectively, in standing position, recumbent position, right ventricular outflow tract, right ventricular outflow tract, supine position, right ventricular outflow tract, supine position, supine position. The velocity of left ventricular outflow tract in upright position was 82.50±2.01 cm/s, and that in supine position was 83.25±2.06 cm/s. There was no significant difference in left ventricular outflow tract velocity in standing and supine position, which may be related to the compression of right ventricular outflow tract.Conclusions: In this study, we got the clinical manifestations of direct-back syndrome patients through comparison of straight back syndrome.