Dr Frederick Christoffel Louw v Dr Abdus Samad Patel

On 7 August 2009, at approximately 17h30, the respondent (Dr Patel) was shot at his home surgery during a robbery, sustaining a gunshot injury to his left lower limb that fractured his femur and injured his popliteal artery. Dr Joosub, a colleague, attended to him and contacted the appellant (Dr Louw), who was at his consulting rooms with other patients. Dr Louw accepted Dr Patel as a patient and undertook to attend to him at Standerton Hospital. The appellant arrived at the hospital around 18h12-18h20, examined the respondent, found a fractured femur with no pedal pulse (indicating vascular injury), and realized the condition was urgent. However, the appellant proceeded to perform a scheduled appendectomy before arranging the transfer. At around 19h00, the appellant decided to transfer the respondent to a facility with vascular and orthopaedic surgeons. The appellant telephoned Dr Straub, an orthopaedic surgeon at Pretoria East Hospital, but Dr Straub was not on call and referred him to Dr Tollig. An ambulance was arranged and departed Standerton at 20h46, arriving at Pretoria East Hospital at 22h45. Upon arrival, it was discovered that Pretoria East Hospital had no facilities to treat vascular injuries, and Dr Patel had to be transferred to Pretoria Heart Hospital. Dr Botes performed revascularization at 02h47, approximately nine and a quarter hours after the injury. Despite the revascularization, the respondent's lower left leg did not regain viability and was amputated on 10 August 2009.

• Whether the appellant was negligent in delaying the transfer of the respondent to definitive care
• Whether the appellant was negligent in proceeding with a scheduled appendectomy before arranging the transfer
• Whether the appellant was negligent in failing to communicate directly with the receiving doctor to ensure the facility had appropriate vascular surgery capabilities
• Whether the appellant's negligent conduct was causally linked to the amputation of the respondent's leg
• The application of the 'but-for' test for factual causation in cases of medical negligence by omission
• The evaluation and weight to be given to conflicting expert evidence regarding medical treatment and causation

The appeal was dismissed with costs, including the costs of two counsel where so employed. The judgment of the full court setting aside the trial court's dismissal of the claim was upheld, meaning the respondent's damages claim for medical negligence against the appellant succeeded.

A medical practitioner who undertakes to treat a patient with an urgent condition has a legal duty to act with reasonable urgency in arranging transfer to definitive care. Where a vascular injury with absent pedal pulse is diagnosed, requiring specialist intervention beyond the practitioner's facilities, the reasonable standard requires: (1) immediate arrangement of transfer rather than attending to less urgent matters first; (2) direct communication with the receiving doctor (not merely an intermediary) to ensure the receiving facility has appropriate specialist resources; and (3) conveying complete and accurate information about the nature and urgency of the injury. For factual causation in medical negligence by omission, the plaintiff must prove on a balance of probabilities that 'but for' the defendant's negligent omission, the harm would not have occurred. This requires a hypothetical inquiry into what would probably have happened if the defendant had acted reasonably. Where expert evidence establishes that timely treatment would have prevented the harm on a balance of probabilities, factual causation is established. Expert evidence must be evaluated based on whether it is founded on logical reasoning and reaches defensible conclusions, considering the expert's direct experience with the patient and consistency with authoritative medical literature.

The majority judgment makes several observations: (1) While general practitioners may not undergo formal triage training, highly experienced practitioners who regularly perform surgery and work in trauma units are held to a correspondingly higher standard of judgment in assessing urgency; (2) Courts must be careful not to assess medical decisions with the benefit of hindsight, but this does not excuse objectively unreasonable decisions made at the time; (3) The failure to call an available witness (Dr Straub) whose evidence would be material gives rise to an inference that the witness would not have supported the party's case; (4) Expert evidence based primarily on statistical analysis in academic literature, without adequate consideration of individual factors specific to the patient's injuries, may be given less weight than evidence from a treating specialist with direct clinical observation; (5) The dissenting judgment (Basson AJA, with Dambuza JA concurring) emphasizes that where an expert cannot be faulted for considering multiple cumulative factors affecting outcome, courts should be cautious about preferring statistical generalizations over clinical assessment; (6) Courts must avoid the risk of immersing themselves so deeply in expert evidence that they apply scientific standards of proof rather than the legal standard of balance of probabilities.

This case is significant in South African medical negligence law for several reasons: (1) It clarifies the standard of care expected of general practitioners in emergency situations involving urgent transfers to specialist care; (2) It emphasizes the importance of direct communication between referring and receiving doctors to ensure appropriate facilities are available, particularly in urgent cases; (3) It illustrates the application of the 'but-for' test for factual causation in medical negligence cases involving omissions and delays in treatment; (4) It demonstrates the approach courts should take in evaluating conflicting expert medical evidence, requiring that expert opinions be founded on logical reasoning and defensible conclusions; (5) It reinforces that courts must consider probabilities and not be overly technical in assessing medical decisions made under pressure, but that professional experience does not excuse failure to meet the objective standard of reasonableness; (6) The dissenting judgment highlights the ongoing difficulty in medical negligence cases of determining causation where multiple factors contribute to an outcome and experts disagree on the relative importance of time versus the nature and extent of injuries.