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Verhagen MV, van der Doef HPJ, Kwee TC, de Haas RJ. No need for fasting prior to doppler ultrasound of pediatric liver transplants: A self-controlled study. Pediatr Transplant 2024; 28:e14622. [PMID: 37815016 DOI: 10.1111/petr.14622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/12/2023] [Accepted: 09/25/2023] [Indexed: 10/11/2023]
Abstract
BACKGROUND Children frequently undergo routine Doppler-ultrasound (DUS) after liver transplantation (LT) for which they are fasted, but this may cause hunger and discomfort. OBJECTIVE To determine if DUS measurements, with focus on the portal vein (PV), are affected by prandial changes, and if this affects distress and feasibility of the DUS. MATERIALS AND METHODS Children were prospectively included to undergo a pre- and postprandial DUS on the same day at 6 months after LT. Pre- and anastomotic PV peak systolic velocity (PSV), and hepatic artery and hepatic vein DUS measurements were obtained. Pre- and postprandial measurements, and relative postprandial change of PV velocity ratio (VR) compared to PV anastomotic PSV, were compared using paired-sample t-tests and intraclass correlation coefficients (ICC). Obscuration by bowel gas, difficulty of DUS, and impact of fasting were assessed using 5-point rating scales. RESULTS Twenty-eight children (median age 3.5 years, IQR 1.6-10.8) were included; four were subsequently excluded because they were not fasted (N = 2) or withdrew consent for the second DUS (N = 2). Measurements between pre- and postprandial DUS, and relative postprandial change of VR compared to PV anastomotic PSV, were not significantly different (p > .05). Test consistency was good (ICC = 0.69, 95% CI = 0.29-0.67) for PV anastomotic PSV, and excellent (95% CI = 0.61-0.93) for PV VR. Obscuration by bowel gas or ease of DUS did not change after eating (p > .05). The majority (16/28, 57.2%) found fasting difficult, and several (13/28, 46.4%) got upset when fasted. CONCLUSION Children with an LT do not need to be fasted for routine DUS, which may decrease the burden of the examination.
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Affiliation(s)
- Martijn V Verhagen
- Department of Radiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Hubert P J van der Doef
- Department of Pediatric Gastroenterology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Thomas C Kwee
- Department of Radiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Robbert J de Haas
- Department of Radiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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2
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Herrmann J, Petit P, Franchi-Abella S, Verhagen MV, McGuirk SP, Dammann E, Bokkers RPH, Clapuyt PRM, Deganello A, Tandoi F, de Ville de Goyet J, Hebelka H, de Lange C, Lozach C, Marra P, Mirza D, Kaliciński P, Patsch JM, Perucca G, Tsiflikas I, Renz DM, Schweiger B, Spada M, Toso S, Viremouneix L, Woodley H, Fischer L, Ording-Müller LS, Brinkert F. European Society of Pediatric Radiology survey of perioperative imaging in pediatric liver transplantation: (2) intraoperative imaging. Pediatr Radiol 2024; 54:269-275. [PMID: 38216682 PMCID: PMC10830587 DOI: 10.1007/s00247-023-05840-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/14/2024]
Abstract
BACKGROUND Liver transplantation is the state-of-the-art curative treatment for end-stage liver disease. Imaging is a key element in the detection of intraoperative and postoperative complications. So far, only limited data regarding the best radiological approach to monitor children during liver transplantation is available. OBJECTIVE To harmonize the imaging of pediatric liver transplantation, the European Society of Pediatric Radiology Abdominal Taskforce initiated a survey addressing the current status of imaging including the pre-, intra- and postoperative phase. This paper reports the responses related to intraoperative imaging. MATERIALS AND METHODS An online survey, initiated in 2021, asked European centers performing pediatric liver transplantation 48 questions about their imaging approach. In total, 26 centers were contacted, and 22 institutions from 11 countries returned the survey. RESULTS Intraoperative ultrasound (US) is used by all sites to assess the quality of the vascular anastomosis in order to ensure optimal perfusion of the liver transplant. Vessel depiction is commonly achieved using color Doppler (95.3%). Additional US-based techniques are employed by fewer centers (power angio mode, 28.6%; B-flow, 19%; contrast-enhanced US, 14.3%). Most centers prefer a collaborative approach, with surgeons responsible for probe handling, while radiologists operate the US machine (47.6%). Less commonly, the intraoperative US is performed by the surgeon alone (28.6%) or by the radiologist alone (23.8%). Timing of US, imaging frequency, and documentation practices vary among centers. CONCLUSION Intraoperative US is consistently utilized across all sites during pediatric liver transplantation. However, considerable variations were observed in terms of the US setup, technique preferences, timing of controls, and documentation practices. These differences provide valuable insights for future optimization and harmonization studies.
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Affiliation(s)
- Jochen Herrmann
- Section of Pediatric Radiology, Department of Diagnostic and Interventional Radiology and Nuclear Medicine, Universitätsklinikum Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
| | - Philippe Petit
- Department of Pediatric Radiology, Hôpital de La Timone: Hopital de La Timone, Marseille, France
| | | | - Martijn V Verhagen
- Department of Radiology, University Medical Centre Groningen: Universitair Medisch Centrum Groningen, Groningen, Netherlands
| | - Simon P McGuirk
- Department of Radiology, Birmingham Children's Hospital, Birmingham, UK
| | - Elena Dammann
- Section of Pediatric Radiology, Department of Diagnostic and Interventional Radiology and Nuclear Medicine, Universitätsklinikum Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Reinoud P H Bokkers
- Department of Radiology, University Medical Centre Groningen: Universitair Medisch Centrum Groningen, Groningen, Netherlands
| | | | | | - Francesco Tandoi
- Department of Hepatobiliary and Transplant Surgery, Azienda Ospedaliero-Universitaria Città Della Salute E Della Scienza Di Torino, Turin, Italy
| | | | - Hanna Hebelka
- Department of Radiology, The Institute of Clinical Sciences, Gothenburg, Sweden
| | - Charlotte de Lange
- Department of Radiology, The Institute of Clinical Sciences, Gothenburg, Sweden
- Department of Pediatric Radiology, Queen Silvia Children's Hospital: Sahlgrenska Universitetssjukhuset Drottning Silvias Barn- Och Ungdomssjukhus, Gothenburg, Sweden
| | - Cecile Lozach
- Department of Radiology, Hôpital Universitaire Necker-Enfants-Malades, Paris, France
| | - Paolo Marra
- Department of Radiology, Azienda Ospedaliera Ospedali Riuniti Di Bergamo: Aziende Socio Sanitarie Territoriale Papa Giovanni XXIII, University of Milano-Bicocca, Bergamo, Italy
| | - Darius Mirza
- Department of Hepatobiliary and Transplant Surgery, Birmingham Children's Hospital, Birmingham, UK
| | - Piotr Kaliciński
- Department of Pediatric Surgery and Organ Transplantation, The Children's Memorial Health Institute, Warsaw, Poland
| | - Janina M Patsch
- Department of Radiology, Medical University of Vienna, Vienna, Austria
| | - Giulia Perucca
- Department of Radiology, Great Ormond Street Hospital for Children, London, UK
- Department of Pediatric Radiology, Regina Margherita Children's Hospital, Turin, Italy
| | - Ilias Tsiflikas
- Department of Radiology, University Clinic of Tübingen, Tübingen, Germany
| | - Diane M Renz
- Department of Pediatric Radiology, Hannover Medical School: Medizinische Hochschule Hannover, Hannover, Germany
| | - Bernd Schweiger
- Department of Radiology, Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Clinic of Essen, Essen, Germany
| | - Marco Spada
- Division of Hepatobiliopancreatic Surgery, Liver and Kidney Transplantation, Ospedale Pediatrico Bambino Gesu, Rome, Italy
| | - Seema Toso
- Department of Pediatric Radiology, Geneva University Hospitals: Hopitaux Universitaires Geneve, Geneva, Switzerland
| | - Loïc Viremouneix
- Department of Radiology, Hôpital Femme Mère Enfant - Hospices Civils de Lyon, Bron, France
| | - Helen Woodley
- Department of Pediatric Radiology, Leeds Children's Hospital, Leeds, UK
| | - Lutz Fischer
- Department of Visceral Transplant Surgery, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Lil-Sofie Ording-Müller
- Department of Pediatric Radiology, Rikshospitalet University Hospital: Oslo Universitetssykehus Rikshospitalet, Oslo, Norway
| | - Florian Brinkert
- Department of Pediatric Gastroenterology and Hepatology, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
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Dammann E, Ording-Müller LS, Franchi-Abella S, Verhagen MV, McGuirk SP, Bokkers RPH, Clapuyt PRM, Deganello A, Tandoi F, de Ville de Goyet J, Hebelka H, de Lange C, Lozach C, Marra P, Mirza D, Kaliciński P, Patsch JM, Perucca G, Tsiflikas I, Renz DM, Schweiger B, Spada M, Toso S, Viremouneix L, Woodley H, Fischer L, Brinkert F, Petit P, Herrmann J. European Society of Pediatric Radiology survey of perioperative imaging in pediatric liver transplantation: (3) postoperative imaging. Pediatr Radiol 2024; 54:276-284. [PMID: 38285190 PMCID: PMC10830633 DOI: 10.1007/s00247-023-05842-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/30/2024]
Abstract
BACKGROUND Liver transplantation is the state-of-the-art curative treatment for end-stage liver disease. Imaging is a key element in the detection of postoperative complications. So far, limited data is available regarding the best radiologic approach to monitor children after liver transplantation. OBJECTIVE To harmonize the imaging of pediatric liver transplantation, the European Society of Pediatric Radiology Abdominal Taskforce initiated a survey addressing the current status of imaging including the pre-, intra-, and postoperative phases. This paper reports the responses related to postoperative imaging. MATERIALS AND METHODS An online survey, initiated in 2021, asked European centers performing pediatric liver transplantation 48 questions about their imaging approach. In total, 26 centers were contacted, and 22 institutions from 11 countries returned the survey. RESULTS All sites commence ultrasound (US) monitoring within 24 h after liver transplantation. Monitoring frequency varies across sites, ranging from every 8 h to 72 h in early, and from daily to sporadic use in late postoperative phases. Predefined US protocols are used by 73% of sites. This commonly includes gray scale, color Doppler, and quantitative flow assessment. Alternative flow imaging techniques, contrast-enhanced US, and elastography are applied at 31.8%, 18.2%, and 63.6% of sites, respectively. Computed tomography is performed at 86.4% of sites when clarification is needed. Magnetic resonance imaging is used for selected cases at 36.4% of sites, mainly for assessment of biliary abnormalities or when blood tests are abnormal. CONCLUSION Diagnostic imaging is extensively used for postoperative surveillance of children after liver transplantation. While US is generally prioritized, substantial differences were noted in US protocol, timing, and monitoring frequency. The study highlights potential areas for future optimization and standardization of imaging, essential for conducting multicenter studies.
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Affiliation(s)
- Elena Dammann
- Section of Pediatric Radiology, Department of Diagnostic and Interventional Radiology and Nuclear Medicine, Universitätsklinikum Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Lil-Sofie Ording-Müller
- Department of Pediatric Radiology, Rikshospitalet University Hospital: Oslo universitetssykehus Rikshospitalet, Oslo, Norway
| | | | - Martijn V Verhagen
- Department of Radiology, University Medical Centre Groningen: Universitair Medisch Centrum Groningen, Groningen, Netherlands
| | - Simon P McGuirk
- Department of Radiology, Birmingham Children's Hospital, Birmingham, UK
| | - Reinoud P H Bokkers
- Department of Radiology, University Medical Centre Groningen: Universitair Medisch Centrum Groningen, Groningen, Netherlands
| | | | | | - Francesco Tandoi
- Department of Hepatobiliary and Transplant Surgery, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, Turin, Italy
| | | | - Hanna Hebelka
- Department of Radiology, The Institute of Clinical Sciences, Gothenburg, Sweden
| | - Charlotte de Lange
- Department of Radiology, The Institute of Clinical Sciences, Gothenburg, Sweden
- Department of Pediatric Radiology, Queen Silvia Children's Hospital, Gothenburg, Sweden
| | - Cecile Lozach
- Department of Radiology, Hôpital Universitaire Necker-Enfants-Malades, Paris, France
| | - Paolo Marra
- Department of Radiology, Azienda Ospedaliera Ospedali Riuniti di Bergamo: Aziende Socio Sanitarie Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Darius Mirza
- Department of Hepatobiliary and Transplant Surgery, Birmingham Children's Hospital, Birmingham, UK
| | - Piotr Kaliciński
- Department of Pediatric Surgery and Organ Transplantation, The Children's Memorial Health Institute, Warsaw, Poland
| | - Janina M Patsch
- Department of Radiology, Medical University of Vienna, Vienna, Austria
| | - Giulia Perucca
- Department of Radiology, Great Ormond Street Hospital for Children, London, UK
- Department of Pediatric Radiology, Regina Margherita Children's Hospital, Turin, Italy
| | - Ilias Tsiflikas
- Department of Radiology, University Clinic of Tübingen, Tübingen, Germany
| | - Diane M Renz
- Department of Pediatric Radiology, Hannover Medical School: Medizinische Hochschule Hannover, Hannover, Germany
| | - Bernd Schweiger
- Department of Radiology, Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Clinic of Essen, Essen, Germany
| | - Marco Spada
- Division of Hepatobiliopancreatic Surgery, Liver and Kidney Transplantation, Bambino Gesù Children's Hospital, Rome, Italy
| | - Seema Toso
- Department of Pediatric Radiology, Geneva University Hospitals: Hopitaux Universitaires Geneve, Geneva, Switzerland
| | - Loïc Viremouneix
- Department of Radiology, Hôpital Femme Mère Enfant - Hospices Civils de Lyon, Bron, France
| | - Helen Woodley
- Department of Pediatric Radiology, Leeds Children's Hospital, Leeds, UK
| | - Lutz Fischer
- Department of Visceral Transplant Surgery, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Florian Brinkert
- Department of Pediatric Gastroenterology and Hepatology, Universitätsklinikum Hamburg- Eppendorf, Hamburg, Germany
| | - Philippe Petit
- Department of Pediatric Radiology, Aix Marseille University, Hôpital Timone Enfants, Marseille, France
| | - Jochen Herrmann
- Section of Pediatric Radiology, Department of Diagnostic and Interventional Radiology and Nuclear Medicine, Universitätsklinikum Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
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Minciuna I, den Hoed C, van der Meer AJ, Sonneveld MJ, Sprengers D, de Knegt RJ, de Jonge J, Maan R, Polak WG, Darwish Murad S. The Yield of Routine Post-Operative Doppler Ultrasound to Detect Early Post-Liver Transplantation Vascular Complications. Transpl Int 2023; 36:11611. [PMID: 38093807 PMCID: PMC10716223 DOI: 10.3389/ti.2023.11611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 11/17/2023] [Indexed: 12/18/2023]
Abstract
Early detection of liver transplantation (LT) vascular complications enables timely management. Our aim was to assess if routine Doppler ultrasound (rDUS) improves the detection of hepatic artery thrombosis (HAT), portal vein thrombosis (PVT) and hepatic venous outflow obstruction (HVOO). We retrospectively analysed timing and outcomes, number needed to diagnose one complication (NND) and positive predictive value (PPV) of rDUS on post-operative day (POD) 0,1 and 7 in 708 adult patients who underwent primary LT between 2010-2022. We showed that HAT developed in 7.1%, PVT in 8.2% and HVOO in 3.1% of patients. Most early complications were diagnosed on POD 0 (26.9%), 1 (17.3%) and 5 (17.3%). rDUS correctly detected 21 out of 26 vascular events during the protocol days. PPV of rDUS was 53.8%, detection rate 1.1% and NND was 90.5. Median time to diagnosis was 4 days for HAT and 47 days for PVT and 21 days for HVOO. After intervention, liver grafts were preserved in 57.1%. In conclusion, rDUS protocol helps to detect first week's vascular events, but with low PPV and a high number of ultrasounds needed.
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Affiliation(s)
- Iulia Minciuna
- Department of Gastroenterology and Hepatology, Erasmus MC Transplant Institute, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
- Department V- Gastroenterology, University of Medicine and Pharmacy “Iuliu Hatieganu”, Cluj-Napoca, Romania
- Regional Institute of Gastroenterology and Hepatology “O. Fodor”, Cluj-Napoca, Romania
| | - Caroline den Hoed
- Department of Gastroenterology and Hepatology, Erasmus MC Transplant Institute, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Adriaan J. van der Meer
- Department of Gastroenterology and Hepatology, Erasmus MC Transplant Institute, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Milan J. Sonneveld
- Department of Gastroenterology and Hepatology, Erasmus MC Transplant Institute, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Dave Sprengers
- Department of Gastroenterology and Hepatology, Erasmus MC Transplant Institute, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Robert J. de Knegt
- Department of Gastroenterology and Hepatology, Erasmus MC Transplant Institute, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Jeroen de Jonge
- Department of Surgery, Division of HPB and Transplant Surgery, Erasmus MC Transplant Institute University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Raoel Maan
- Department of Gastroenterology and Hepatology, Erasmus MC Transplant Institute, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Wojciech G. Polak
- Department of Surgery, Division of HPB and Transplant Surgery, Erasmus MC Transplant Institute University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Sarwa Darwish Murad
- Department of Gastroenterology and Hepatology, Erasmus MC Transplant Institute, Erasmus MC University Medical Center Rotterdam, Rotterdam, Netherlands
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Verhagen MV, de Kleine RH, Groen H, van der Doef HPJ, Kwee TC, de Haas RJ. Doppler-ultrasound reference values after pediatric liver transplantation: a consecutive cohort study. Eur Radiol 2023; 33:6404-6413. [PMID: 36930263 PMCID: PMC10415481 DOI: 10.1007/s00330-023-09522-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 11/22/2022] [Accepted: 02/03/2023] [Indexed: 03/18/2023]
Abstract
OBJECTIVES Doppler ultrasound (DUS) is the main imaging modality to evaluate vascular complications of pediatric liver transplants (LT). The current study aimed to determine reference values and their change over time. METHODS A consecutive cohort of pediatric patients undergoing an LT were retrospectively included between 2015 and 2020. Timepoints for standardized DUS were intra-operative and postoperative (day 0), days 1-7, months 1 and 3, and years 1 and 2. DUS measurements of the hepatic artery (HA), portal vein (PV), and hepatic vein(s) (HV) were included if there were no complications during 2 years follow-up. Measurements consisted of: peak systolic velocity (PSV) and resistive index (RI) for the HA, PSV for the PV, and venous pulsatility index (VPI) for the HV. Generalized estimating equations were used to analyze change over time. RESULTS One hundred twelve pediatric patients with 123 LTs were included (median age 3.3 years, interquartile range 0.7-10.1). Ninety-five HAs, 100 PVs, and 115 HVs without complications were included. Reference values for HA PSV and RI, PV PSV, and HV VPI were obtained for all timepoints (4043 included data points in total) and presented using 5th-95th percentiles and threshold values. All reference values changed significantly over time (p = 0.032 to p < 0.001). CONCLUSIONS DUS reference values of hepatic vessels in children after LT are presented, reference values change over time with specific vessel-dependent patterns. Timepoint-specific reference values improve the interpretation of DUS values and may help to better weigh their clinical significance. KEY POINTS • Doppler ultrasound reference values of pediatric liver transplantations are not static but change over time. Applying the correct reference values for the specific timepoint may further improve the interpretation of the measurements. • The pattern of change over time of Doppler ultrasound measurements differs between the hepatic vessel and measurement; knowledge of these patterns may help radiologists to better understand normal postoperative hemodynamic changes.
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Affiliation(s)
- Martijn V Verhagen
- Department of Radiology, University of Groningen, University Medical Center Groningen, PO Box 30 001, 9700 RB, Groningen, The Netherlands.
| | - Ruben H de Kleine
- Department of Hepatobiliary Surgery and Liver Transplantation, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Henk Groen
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Hubert P J van der Doef
- Department of Pediatric Gastroenterology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Thomas C Kwee
- Department of Radiology, University of Groningen, University Medical Center Groningen, PO Box 30 001, 9700 RB, Groningen, The Netherlands
| | - Robbert J de Haas
- Department of Radiology, University of Groningen, University Medical Center Groningen, PO Box 30 001, 9700 RB, Groningen, The Netherlands
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