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Table 2 Changes in echocardiographic parameters after FNB and LFCNB

From: Fixation of intracapsular fracture of the femoral neck using combined peripheral nerve blocks and transthoracic echocardiography in a patient with severe obstructive hypertrophic cardiomyopathy: a case report

Variables Baseline Time after FNB (minutes)
0 10 20 30 40 50 60 End of surgery
LVPG (mmHg) 69 70 64 63 67 64 65 66 63
LVDd (mm) 34 33 34 33 34 34 34 33 34
LVDs (mm) 19 18 18 18 18 18 18 18 18
EROA (cm2) 0.18 0.18 0.16 0.16 0.17 0.16 0.16 0.16 0.16
EF (%) 66 68 63 63 66 63 64 64 63
e/e′ 17 18 17 17 17 16 17 17 16
CI (L/min/m2) 2.4 2.2 2.4 2.4 2.3 2.4 2.4 2.3 2.4
  1. FNB femoral nerve block, LFCNB lateral femoral cutaneous nerve block, LVPG left ventricular pressure gradient, LVDd left ventricular dimension at diastole, LVDs left ventricular dimension at systole, EROA effective regurgitant orifice area, EF ejection fraction ratio (%), determined using the modified Simpson method, e/e′ color tissue Doppler imaging loops were obtained in the apical four-chamber view, and peak early diastolic velocity (e′) was measured at the base of the septum, CI cardiac index, determined using transthoracic echocardiography with continuous Doppler measurements in the aortic valve