Iron‑deficiency anaemia is a common condition where the body lacks enough iron to make haemoglobin. For patients who cannot tolerate oral supplements, intravenous iron therapy is often used. In the case described here, a middle‑aged woman with severe menstrual bleeding (under investigation) underwent an iron infusion because she could not tolerate tablets. During the procedure iron leaked from her vein into the surrounding tissue. She experienced severe pain and her arm developed a significant permanent brown stain. The incident prompted a review of the care she received.
Key failures
Several breaches of duty were identified:
- Consent and information – The patient was not warned about the risk of extravasation, so she could not make an informed decision. The Supreme Court’s decision in Montgomery v Lanarkshire Health Board requires clinicians to inform patients of material risks and reasonable alternatives.
- Patient education – No written information or guidance was provided. As a result, the patient did not know what signs to look out for or when to seek help.
- Documentation and protocols – The medical records were incomplete and suggested that standard protocols were not followed.
- Cannulation technique – The injury occurred because the intravenous cannula was inserted incorrectly. Proper training and competence in cannulation are essential.
- Emergency response – The response to the extravasation was inadequate, and there was no ready access to assistance.
Legal outcome and implications
The patient obtained a settlement acknowledging that her injury was preventable and that multiple failures amounted to negligence. For claimants, this case illustrates that extravasation injuries often involve failures in consent, record keeping and adherence to protocols, all of which can support a negligence claim. For healthcare providers it highlights the need to obtain informed consent, provide written information, train staff in cannulation and have clear emergency procedures. These steps reduce the risk of harm and provide a robust defence if a claim is brought.
Informed consent and the need for written information
The Montgomery judgment modernised informed consent in the UK. Doctors and nurses must now ensure patients understand any material risk and know about reasonable alternatives. For iron‑infusion cases this includes explaining the risk of iron extravasation and the possibility of permanent staining and pain.
Why written information matters
Many NHS trusts produce information leaflets on iron extravasation. These materials complement the consent conversation by enhancing patient autonomy, communicating risk, supporting the consent discussion and demonstrating compliance with legal requirements. A good leaflet should include contact details for a knowledgeable clinician, a clear description of the procedure and alternatives, potential risks and side‑effects, and after‑care guidance. Failure to provide such information can lead to allegations that the consent process was deficient.
Recognising injuries resulting from iron extravasation
Extravasation can lead to significant physical and psychological harm. When iron leaks into the tissues it causes a permanent brown stain around the cannula site, and in some cases the discoloration spreads across the whole limb. Plastic surgery advice may be required to manage this staining.
Patients may also suffer anxiety, fear of medical procedures, body‑image concerns and social withdrawal. Some develop post‑traumatic stress disorder. The combination of pain, staining and psychological distress can lead to depression. Patients should be told about these risks before treatment. When injuries occur, early referral to plastic surgeons and mental‑health professionals is advisable. Failure to warn patients of potential physical and psychological effects or to arrange appropriate follow‑up may give rise to claims for damages.
Scott Harding-Lister is a solicitor who can act for Claimants who have suffered an iron extravasation. He has extensive experience in this area being both medically and legally qualified.
Scott Harding-Lister
Specialist Clinical Negligence Solicitor
Scott Harding-Lister is a dual-qualified solicitor and registered nurse with hands-on experience in both clinical practice and legal advocacy. His unique background enables him to understand the realities of healthcare delivery and to identify when standards have fallen short. Supported by a skilled team of clinical negligence specialists and connected to leading UK medical experts, Scott offers clients clear guidance, expert case preparation, and a depth of insight that ensures every claim is built on strong medical and legal foundations.