Imperial College London
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ProfessorSimonTaylor-Robinson

Faculty of Engineering, Department of Electrical and Electronic Engineering

Visiting Professor
 
 
 
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s.taylor-robinson

 
 
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Location

 

Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ahmad:2020:10.4254/wjh.v12.i11.1055,
author = {Ahmad, A and Atzori, S and Maurice, J and Taylor-Robinson, S and Lim, A},
doi = {10.4254/wjh.v12.i11.1055},
journal = {World Journal of Hepatology},
pages = {1055--1066},
title = {Non-invasive splenic parameters of portal hypertension: Assessment and utility},
url = {http://dx.doi.org/10.4254/wjh.v12.i11.1055},
volume = {12},
year = {2020}
}
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TY  - JOUR
AB  - BACKGROUNDPortal hypertension is a major complication of cirrhosis that is associated with significant morbidity and mortality. The present gold-standard method to risk stratify and observe cirrhosis patients with portal hypertension is hepatic venous pressure gradient measurement or esophagogastroduodenoscopy. However, these methods are invasive, carry a risk of complications and are associated with significant patient discomfort. Therefore, non-invasive splenic parameters are of clinical interest as potential useful markers in determining the presence of portal hypertension. However, diagnostic accuracy and reproducibility remains unvalidated.AIMTo assess the diagnostic accuracy of spleen stiffness, area and diameter in predicting the presence of portal hypertension.METHODSOf 50 patients with varying liver disease pathologies were prospectively recruited from the St. Mary’s Hospital Liver Unit in London; 25 with evidence of portal hypertension and 25 with no evidence of portal hypertension. Liver stiffness, spleen stiffness, spleen diameter and spleen area were measured using the Philips Affiniti 70 elastography point quantification point shear wave elastography system. The aspartate aminotransferase-to-platelet-ratio-index (APRI) score was also calculated. Performance measures, univariate and multivariate logistic regression were used to evaluate demographic, clinical and elastography variables. Interclass correlation coefficient was used to determine the reproducibility of splenic area and diameter.RESULTSOn univariate and individual performance, platelet count [area under the receiver operating characteristic (AUROC) 0.846, P value < 0.001], spleen area (AUROC 0.828, P value = 0.002) and APRI score (AUROC 0.827, P value < 0.001) were the most accurate variables in identifying the presence of portal hypertension. On multivariate logistic regression models constructed, the combination of spleen area greater than 57.90 cm2 and platelet count less than
AU  - Ahmad,A
AU  - Atzori,S
AU  - Maurice,J
AU  - Taylor-Robinson,S
AU  - Lim,A
DO  - 10.4254/wjh.v12.i11.1055
EP  - 1066
PY  - 2020///
SN  - 1948-5182
SP  - 1055
TI  - Non-invasive splenic parameters of portal hypertension: Assessment and utility
T2  - World Journal of Hepatology
UR  - http://dx.doi.org/10.4254/wjh.v12.i11.1055
UR  - http://hdl.handle.net/10044/1/84748
VL  - 12
ER  -
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