Hamostaseologie
DOI: 10.1055/a-2599-9611
Original Article

Outcome of Surgical Interventions in Patients with Haemophilia A and B Treated with Extended Half-Life (EHL) Factor Concentrates in a Single Centre

Ines Vaide
1   Department of Haematology and Oncology, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia
,
Saskia Gottstein
2   Vivantes Klinikum im Friedrichshain, Innere Medizin - Angiologie und Hämostaseologie, Berlin, Germany
,
Cornelia Kubicek-Hofmann
2   Vivantes Klinikum im Friedrichshain, Innere Medizin - Angiologie und Hämostaseologie, Berlin, Germany
,
Ana Maria Orlovic
2   Vivantes Klinikum im Friedrichshain, Innere Medizin - Angiologie und Hämostaseologie, Berlin, Germany
,
Robert Klamroth
2   Vivantes Klinikum im Friedrichshain, Innere Medizin - Angiologie und Hämostaseologie, Berlin, Germany
› Author Affiliations
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Abstract

Background

The prevention of intraoperative bleeding in patients with haemophilia is the key to a successful surgical procedure. Daily life of patients with haemophilia A and B significantly improved with prophylaxis with extended half-life factor concentrates (EHL-FVIII and EHL-FIX). The aim of this study was to investigate the efficacy and safety of EHL factor concentrates during surgery.

Methods

In a retrospective chart review all surgical interventions in our hospital in patients with haemophilia A and B treated with EHL-FVIII or EHL-FIX undergoing surgery between 2016 and 2022 were included. Patients with inhibitors against FVIII or FIX were excluded.

Results

A total of 88 surgical interventions (41 minor, 47 major) in 52 patients with haemophilia were performed. The interventions consisted of 70 surgeries in 42 patients with haemophilia A and 18 surgeries in 10 patients with haemophilia B. The replacement therapy during the surgeries was performed with four different EHL FVIII and three different EHL FIX concentrates. Bolus injections were performed directly before surgery and continued after surgery with variable intervals ranging from 8 to 48 hours. The median dose before major surgery was 32.31 IU/kg FVIII and 47.06 IU/kg FIX and before minor surgery was 27.78 IU/kg FVIII and 33.78 IU/kg factor IX. There were 11 complications including 4 bleeding complications during/after surgery. No thromboembolic event and no inhibitor against FVIII or FIX were detected during follow-up.

Summary

The replacement therapy with EHL factor concentrates in surgical interventions in patients with haemophilia A and B is safe and effective.



Publication History

Received: 05 November 2024

Accepted: 05 May 2025

Article published online:
07 August 2025

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