Evidence map›Paper›PMID 40553241›Full record

ArticleIntensive care medicine experimental2025

Citrate regional anticoagulation of 500 ml/min of extracorporeal blood flow: an experimental study.

Sebastiano Maria Colombo, Luigi Vivona, Michele Battistin, Vittorio Scaravilli, Alessandro Galli, Chiara Anzanello, Elisa Cipriani, Francesca Gori, Serena Todaro, Carlo Valsecchi and 6 more

Abstract read
In one paragraph

Article in Intensive care medicine experimental, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. CRRT-miECCOCritical care (London, England) · 2026
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors.

Sebastiano Maria Colombo *Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Della Commenda 16, 20122, Milan, Italy.
Luigi Vivona *Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Della Commenda 16, 20122, Milan, Italy.
Michele BattistinCenter for Preclinical Research, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Vittorio ScaravilliDepartment of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Della Commenda 16, 20122, Milan, Italy.
Alessandro GalliDipartimento Emergenza, Urgenza e Area Critica, ASST Papa Giovanni XXIII, Bergamo, Italy.
Chiara AnzanelloDepartment of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
Elisa CiprianiIntensive Care Unit and Regional ECMO Referral Center, Careggi University Hospital, Florence, Italy.
Francesca GoriDepartment of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Della Commenda 16, 20122, Milan, Italy.
Serena TodaroDepartment of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
Carlo ValsecchiDepartment of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Della Commenda 16, 20122, Milan, Italy.
Daniele DondossolaLiver Transplant and General Surgery Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Anna Paola MarcelloDepartment of Medicine, Hematology-Fisiopatologia Delle Anemia, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Andrea CarlinDepartment of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
Antonio PesentiDepartment of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Della Commenda 16, 20122, Milan, Italy.
Giacomo GrasselliDepartment of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Della Commenda 16, 20122, Milan, Italy.
Alberto ZanellaDepartment of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Della Commenda 16, 20122, Milan, Italy. alberto.zanella1@unimi.it.ORCID http://orcid.org/0000-0002-2967-2527

Funding

Ministero della Salute Bando Interno Direzione Scientifica PR-0344Ministero della Salute Current Research IRCCSMinistero della Salute PRIN 2017 - 2017J4BE7A_003
6 · The paper itself

Abstract

backgroundRegional citrate anticoagulation (RCA) is the most widespread technique which allows to perform extracorporeal treatments, avoiding the complications of systemic anticoagulation. Due to limited citrate clearance, RCA may be applied only to low extracorporeal blood flows (i.e., BF < 200 ml/min). In this proof of concept study, we developed an innovative RCA technique based on Ion Exchange Resin (i-ER) technology capable of regionally anticoagulating BF up to 500 mL/min.

methodsSix healthy swine (41.0 ± 3.1 kg) were sedated, mechanically ventilated, and connected to a prototype extracorporeal circuit for continuous renal replacement therapy featuring a citrate-removal stage based on absorbent materials and replacement fluids. Blood flow was 500 ml/min. Sodium citrate was continuously infused at the circuit inlet (5 mmol/L). Heparin was continuously infused. Citrate concentration and Kaolin Heparinase thromboelastography (KH-TEG) were measured on arterial blood, extracorporeal blood downstream the citrate infusion port, and downstream the citrate-removal stage. Samples were collected at baseline, 2, 8, 15, 30, 45, 60, 90, and 120 min for citrate and at baseline, 2, 30, 60, and 120 min for KH-TEG. Calcium chloride was infused to maintain systemic ionized calcium within the physiological range. The experiment lasted 2 h.

resultsDuring the whole experiment, KH-TEG in the artery showed normal coagulation: reaction time (R) was 8.30[6.80-10.10] min, with Maximum Amplitude (MA) of 71.70[67.90-77.00] mm, while in the extracorporeal circuit, KH-TEG showed no sign of clot formation R > 60 min, MA = 0 mm. Citrate concentrations in blood samples were stable within 30 min, then slowly increased. The efficacy of the citrate-removal dropped from 93.8 ± 3.4% to 48.3 ± 1.5% at the beginning (2 min) and at the end (2 h), respectively (p < 0.001), due to loss of efficiency of the iERs.

conclusionsThis study demonstrates that iER-based RCA is a feasible and effective technique for regional anticoagulation of extracorporeal blood flow up to 500 mL/min for 60 min without significant complications.

Indexed as

500 mL/minCitrateIon-exchange resinsRegional anticoagulation

Identifiers

PMID40553241
PMCPMC12187626

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.