RV function
As shown in Figure 1, a normal TAPSE was recorded in all healthy
subjects, but the TAPSE was significantly decreased in patients with
COVID-19 pneumonia. Further, the TAPSE was significantly lower in
critically severe patients than in severe patients (P = 0.0128). 3
(8.6%) severe and 5 (35.7%) critically severe patients had a reduced
TAPSE (< 17mm).
The echocardiographic parameters of RV function in patients with
COVID-19 pneumonia are shown in Table 2. Tricuspid regurgitation was
present in 21 (60.0%) severe and 13 (92.9%) critically severe
patients, and there were no statistically significant differences in
PASP and TRPG between the two groups (P > 0.05). Patients
with COVID-19 pneumonia had a significantly higher PAD than healthy
subjects (P < 0.0001). The IVCmax and IVCmin were
significantly increased in critically severe patients than in healthy
subjects and severe patients (P < 0.01), whereas ICV-CI was
significantly decreased (P < 0.05).