Kinsella v Carter [2026] IEHC 39 —Reaffirming well established principles governing nervous shock in Ireland

Nervous shock is a legal term used to describe a medically recognisable psychiatric injury arising due to exposure to shocking, or distressing events, distinct from mere grief or suffering. For the last number of years, the law on nervous shock specifically in the context of medical negligence has been somewhat in flux. Last week’s High Court’s decision, delivered by Judge O’Connor, in  Kinsella v Carter [2026] IEHC 39 is important as it reaffirms the principles established in Kelly v Hennessy [1995] IESC 8 as the test to be applied in in modern clinical negligence cases involving claims for ‘nervous shock.’

The Plaintiff’s case

The proceedings were brought by James Kinsella (the Plaintiff) against the hospital arising from the admitted negligent administration of a substantial overdose of blood pressure medication, Lercanidipine, to his wife while she was an inpatient at the defendant’s Hospital in July 2021. The prescription error resulted in a medical crisis. Due to visiting restrictions relating to COVID, the Plaintiff had been unable to visit his wife the previous day. He was contacted and informed that she was unwell and he attended shortly afterwards. He reported witnessing deeply distressing circumstances: his wife unconscious, watching black material emanating from her mouth as activated charcoal was administered to counteract the overdose. He was subjected to an atmosphere of acute crisis and chaos. His shock was so severe that he collapsed and was brought to the emergency department of the hospital for treatment.

Mrs Kinsella died on 2 August 2021 as a result of her injuries. Her husband brought a claim on behalf of his wife’s dependents under the Civil Liability Act and sought compensation for the psychiatric injuries he suffered.  While the statutory dependency claim under the Civil Liability Act 1961 was agreed, the central dispute concerned whether Mr Kinsella could separately recover damages for ‘nervous shock.’

The Hospital’s Defence

The Defendant Hospital defended the Plaintiff’s claims on the basis that a catastrophic medical event could not constitute an ‘accident’ and that the term ought refer to road traffic collisions, or industrial disasters only.

They further sought to narrow nervous shock cases specifically in the context of cases involving medical negligence, arguing that hospitals owe duties only to their patients and not to their patient’s spouses. The Hospital contended that extending a duty of care to a patient’s spouse would create uncertainty, interfere with clinical decision-making and open the floodgates. Reliance was placed on UK jurisprudence, particularly Paul v Royal Wolverhampton NHS Trust [2024] UKSC 1, where concerns arose regarding secondary victim claims in medical settings.

The  Hospital contended that the events amounted to a continuum of distress rather than a single sudden shocking occurrence and accordingly could not be capable of satisfying the ‘shock-induced illness’ requirement for nervous shock cases.

Judgment

In reaching his decision, Judge O’Connor applied the law as set out in Kelly and Hennessy which requires that the Plaintiff satisfies the following criteria to succeed in a claim for nervous shock:

1. Recognisable Psychiatric Illness: The plaintiff must have a medically diagnosed psychiatric injury, not merely emotional distress or grief.
2. Shock-Induced Illness: The condition must result from a sudden and shocking event rather than prolonged stress or worry.
3. Causation: There must be a direct causal link between the shocking event and the plaintiff’s psychiatric illness.
4. Actual or Apprehended Injury: The plaintiff’s injury must arise from witnessing actual injury to another person or fearing injury to themselves or someone close to them.
5. Duty of care:- it must be established that the defendant owed the Plaintiff a duty of care to prevent him/her from suffering foreseeable injury to negligence.

The Court rejected the Hospital’s contention that  hospital-created catastrophes should be excluded from the concept of an ‘accident’ commenting that the relevant issue is the character of the event: whether it constitutes a sudden, unintended and externally caused occurrence capable of producing a direct and shocking sensory impact.   The Court accepted that the negligent overdose in this case was precisely such an event, distinguishing Mr Kinsella’s case from cases involving a gradual deterioration, or a delayed diagnosis, as had occurred in the case of Germaine v Day.

The Court also rejected the argument that later developments somehow negated the existence of the original shock. The unchallenged psychiatric evidence confirmed that Mr Kinsella suffered an acute stress reaction as a result of what he witnessed and that stress reaction  subsequently evolved into PTSD.

The Court was clear that it was not recognising a broad general duty owed by hospitals to all relatives of patients. Instead, the duty of care to the Plaintiff arose due to the specific facts of this particular case – for example:

• the overdose was an immediate and catastrophic event caused directly by admitted negligence;
• the plaintiff attended shortly afterwards and witnessed the consequences of the Defendant’s negligence;
• the shocking circumstances were unfolding in real time while the hospital remained in control of the situation;
• and the plaintiff himself physically collapsed in response to what he encountered.

Taken together, the Court was satisfied that these features created sufficient legal proximity to ground a duty of care within the established Kelly v Hennessy framework.

From a plaintiff perspective, Kinsella v Carter is important because it confirms that Irish courts remain prepared to recognise legitimate psychiatric injury claims arising from clinical negligence, provided the established legal criteria are satisfied.

The judgment  reaffirms and carefully applies the existing Kelly and Hennessy principles to medical negligence cases.

Ultimately, the decision demonstrates that where admitted medical negligence creates a sudden catastrophic event, and a close family member suffers a clinically recognised psychiatric injury arising from the immediate aftermath of that event, Irish law facilitates a legal remedy for those affected.

How We Can Help?

Brigid O’Donnell, Solicitor, a native of Cashel, with offices in Clonmel, Co. Tipperary and Cork City, has extensive experience representing clients who have lost loved ones due to medical negligence.  She has experience negotiating fair and appropriate compensation, often through mediation, for affected patients and for their families. She also has experience in conducting and winning trials to secure compensation.   She understands how stressful these cases can be, and she works hard to provide support, discretion, and clarity every step of the way.