Evaluation of the Inferior Vena Cava Diameter in Dehydrated Children Using Bedside Ultrasonography

Table 3

Correlation between IVC, AO diameter, laboratory parameters and vital signs.

	IVC/AO first^a	IVC-CI_First^a	VCI transverse (mm)	AO (mm)	IVC min (mm)	IVC max (mm)	Age (yr)	Weight percentil (%)	BSA	Pulse (/minute)	DBP (mmHg)	SBP (mmHg)	WBC (/uL)	Hb (g/dL)	HTC (%)
IVC/AO first^a	1
IVC-CI_First^a	−0.015	1
IVC transvers (mm)	0.600	0.084	1
AO (mm)	−0.069	0.157	0.731	1
IVC min (mm)	0.286	−0.304	0.542	0.431	1
IVC max (mm)	0.286	0.145	0.595	0.521	0.890	1
Age (yr)	0.254	0.142	0.647	0.620	0.607	0.693	1
Weight percentil (%)	0.052	−0.032	0.164	0.186	0.039	0.005	−0.049	1
BSA	0.245	0.124	0.670	0.651	0.599	0.671	0.946	0.195	1
Pulse (/minute)	−0.190	−0.144	−0.522	−0.541	−0.339	−0.427	−0.666	−0.015	−0.648	1
DBP (mmHg)	0.199	0.020	0.501	0.446	0.367	0.384	0.632	−0.081	0.569	−0.450	1
SBP (mmHg)	0.237	0.128	0.635	0.618	0.479	0.549	0.804	−0.031	0.746	−0.535	0.741	1
WBC (/uL)	0.011	0.078	−0.070	−0.085	0.090	0.114	0.076	0.004	0.090	0.029	0.117	0.057	1
Hb (g/dL)	0.111	0.196	0.355	0.389	0.373	0.478	0.488	0.267	0.552	−0.341	0.175	0.345	0.184	1
HTC (%)	0.079	0.168	0.247	0.276	0.324	0.409	0.454	0.258	0.516	−0.228	0.146	0.300	0.181	0.919	1
	IVC/AO	IVC CI	IVC transverse (mm)	AO (mm)	IVC min (mm)	IVC max (mm)	Glucose (mg/dL)	BUN (mg/dL)	Creatinine (mg/dL)	Uric acid (mg/dL)	Na (mEq/L)	K (mEq/L)	pH	HCO 3 (mmol/L)	Lactate (mmol/L)
Glucose (mg/dL)	0.113	0.098	0.240	0.229	0.193	0.254	1
BUN (mg/dL)	−0.104	−0.100	−0.200	−0.174	−0.046	−0.122	0.028	1
Creatinine (mg/dL)	0.161	−0.003	0.319	0.266	0.430	0.434	0.328	0.503	1
Uric acid (mg/dL)	−0.082	0.038	−0.139	−0.135	0.024	0.027	−0.235	0.521	0.409	1
Na (mEq/L)	−0.073	0.158	0.015	0.088	0.010	0.066	0.356	0.101	0.177	0.022	1
K (mEq/L)	−0.045	0.125	−0.007	0.039	−0.003	0.048	0.084	−0.296	−0.230	−0.059	0.238	1
pH	0.049	−0.075	0.177	0.206	0.057	0.045	0.170	−0.249	−0.132	−0.251	−0.259	−0.020	1
HCO3 (mmol/L)	0.206	−0.019	0.377	0.332	0.272	0.267	0.428	−0.238	0.071	−0.340	0.012	0.150	0.672	1
Lactate (mmol/L)	−0.052	0.104	−0.079	0.007	0.046	0.101	0.008	0.154	0.122	0.124	−0.012	−0.196	−0.063	−0.225	1
CRP (mg/L)	0.202	−0.024	0.137	−0.001	0.290	0.275	0.058	0.136	0.334	0.108	−0.054	−0.177	−0.222	−0.098	0.134
Dehydration degree	−0.348	−0.030	−0.385	−0.229	−0.016	−0.055	−0.044	0.356	0.143	0.308	0.050	−0.258	−0.105	−0.215	0.193

. Correlation is significant at the 0.01 level (2-tailed). . Correlation is significant at the 0.05 level (2-tailed). AO: Aorta, IVC: Inferior vena cava, CI: Collapsibility index BSA: Body surface area, DBP: Diastolic blood pressure, SBP: Systolic blood pressure, BUN: Blood Urea Nitrogen, WBC: white blood cell, Hb: hemoglobin, Htc: hematocrit.^a before fluid therapy. †: Non-parametric Spearman Rho correlations. AO: Aorta, IVC: Inferior vena cava, CI: Collapsibility index, BUN: Blood Urea Nitrogen, Na: sodium, K: potassium, CRP; C-reactive protein.