Ultrasonographic evaluation of the gallbladder motor function in the diagnosis and prognosis of intrahepatic cholestasis of pregnancy

Abstract Background Intrahepatic cholestasis of pregnancy (ICP) is characterized by skin pruritus, elevated liver enzymes, and increased serum total bile acids. Several previous studies have revealed that the fasting and ejection volumes of the gallbladder in cholestasis of pregnancy are greater tha...

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Main Authors: Minghui Tai, Long Chen, Yajuan He, Fei Wang, Zhen Tian
Format: Article
Language:English
Published: BMC 2024-01-01
Series:BMC Pregnancy and Childbirth
Online Access:https://doi.org/10.1186/s12884-023-06209-w
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author Minghui Tai
Long Chen
Yajuan He
Fei Wang
Zhen Tian
author_facet Minghui Tai
Long Chen
Yajuan He
Fei Wang
Zhen Tian
author_sort Minghui Tai
collection DOAJ
description Abstract Background Intrahepatic cholestasis of pregnancy (ICP) is characterized by skin pruritus, elevated liver enzymes, and increased serum total bile acids. Several previous studies have revealed that the fasting and ejection volumes of the gallbladder in cholestasis of pregnancy are greater than those in normal pregnancy. The goal of this study was to explore the gallbladder volume and evaluate the diagnostic and prognostic value of ultrasound in ICP. Methods We prospectively recruited a cohort of 60 ICP patients at the First Affiliated Hospital of Xi’an Jiaotong University, Shaanxi, China from January 2020 to December 2021 and compared their data with those from healthy pregnant women (n = 60). The gallbladder volume was evaluated by real-time ultrasound examination after overnight fasting and at 30, 60, 120, and 180 min after a liquid test meal of 200 mL, and the ejection fraction was calculated. Continuous data between two groups were compared by Student’s t test. Differences were considered significant for p < 0.05. The diagnostic and prognostic value of the volume and ejection function of the gallbladder was analyzed by the receiver operating characteristic (ROC) curve. Results The ICP group had significantly higher gallbladder basal volume (43.49 ± 1.34 cm3 vs. 26.66 ± 0.83 cm3, p < 0.01) and higher ejection fraction compared with the healthy group. The ejection fraction higher than 54.55% at 120 min might predict ICP diagnosis with 96.67% sensitivity and 88.33% specificity, and an AUC of 0.9739 (95% CI 0.9521–0.9956), while the gallbladder volume higher than 12.52 cm3 at 60 min might predict ICP severity with 59.18% sensitivity and 72.73% specificity, and an AUC of 0.7319 (95% CI 0.5787–0.8852). Conclusion Our results indicate abnormal volume and ejection function of the gallbladder in patients with ICP. The ejection fraction at 120 min can assist in the diagnosis if ICP exists, and the gallbladder volume at 60 min may assess the degree of severity of ICP.
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spelling doaj.art-a5564e2af9e640ab93a5291283c6ca772024-01-07T12:52:58ZengBMCBMC Pregnancy and Childbirth1471-23932024-01-012411810.1186/s12884-023-06209-wUltrasonographic evaluation of the gallbladder motor function in the diagnosis and prognosis of intrahepatic cholestasis of pregnancyMinghui Tai0Long Chen1Yajuan He2Fei Wang3Zhen Tian4Department of Ultrasound, The First Affiliated Hospital of Xi’an Jiaotong UniversityDepartment of Ultrasound Medicine, Baoji High-Tech HospitalDepartment of Ultrasound, The First Affiliated Hospital of Xi’an Jiaotong UniversityDepartment of Ultrasound, The First Affiliated Hospital of Xi’an Jiaotong UniversityDepartment of Ultrasound, The First Affiliated Hospital of Xi’an Jiaotong UniversityAbstract Background Intrahepatic cholestasis of pregnancy (ICP) is characterized by skin pruritus, elevated liver enzymes, and increased serum total bile acids. Several previous studies have revealed that the fasting and ejection volumes of the gallbladder in cholestasis of pregnancy are greater than those in normal pregnancy. The goal of this study was to explore the gallbladder volume and evaluate the diagnostic and prognostic value of ultrasound in ICP. Methods We prospectively recruited a cohort of 60 ICP patients at the First Affiliated Hospital of Xi’an Jiaotong University, Shaanxi, China from January 2020 to December 2021 and compared their data with those from healthy pregnant women (n = 60). The gallbladder volume was evaluated by real-time ultrasound examination after overnight fasting and at 30, 60, 120, and 180 min after a liquid test meal of 200 mL, and the ejection fraction was calculated. Continuous data between two groups were compared by Student’s t test. Differences were considered significant for p < 0.05. The diagnostic and prognostic value of the volume and ejection function of the gallbladder was analyzed by the receiver operating characteristic (ROC) curve. Results The ICP group had significantly higher gallbladder basal volume (43.49 ± 1.34 cm3 vs. 26.66 ± 0.83 cm3, p < 0.01) and higher ejection fraction compared with the healthy group. The ejection fraction higher than 54.55% at 120 min might predict ICP diagnosis with 96.67% sensitivity and 88.33% specificity, and an AUC of 0.9739 (95% CI 0.9521–0.9956), while the gallbladder volume higher than 12.52 cm3 at 60 min might predict ICP severity with 59.18% sensitivity and 72.73% specificity, and an AUC of 0.7319 (95% CI 0.5787–0.8852). Conclusion Our results indicate abnormal volume and ejection function of the gallbladder in patients with ICP. The ejection fraction at 120 min can assist in the diagnosis if ICP exists, and the gallbladder volume at 60 min may assess the degree of severity of ICP.https://doi.org/10.1186/s12884-023-06209-w
spellingShingle Minghui Tai
Long Chen
Yajuan He
Fei Wang
Zhen Tian
Ultrasonographic evaluation of the gallbladder motor function in the diagnosis and prognosis of intrahepatic cholestasis of pregnancy
BMC Pregnancy and Childbirth
title Ultrasonographic evaluation of the gallbladder motor function in the diagnosis and prognosis of intrahepatic cholestasis of pregnancy
title_full Ultrasonographic evaluation of the gallbladder motor function in the diagnosis and prognosis of intrahepatic cholestasis of pregnancy
title_fullStr Ultrasonographic evaluation of the gallbladder motor function in the diagnosis and prognosis of intrahepatic cholestasis of pregnancy
title_full_unstemmed Ultrasonographic evaluation of the gallbladder motor function in the diagnosis and prognosis of intrahepatic cholestasis of pregnancy
title_short Ultrasonographic evaluation of the gallbladder motor function in the diagnosis and prognosis of intrahepatic cholestasis of pregnancy
title_sort ultrasonographic evaluation of the gallbladder motor function in the diagnosis and prognosis of intrahepatic cholestasis of pregnancy
url https://doi.org/10.1186/s12884-023-06209-w
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