Six new papers today — here are the top four. Paper one — nursing home arrests were far more likely to show a shockable rhythm, likely because AEDs are close at hand. Paper two — bystanders describe a heavy emotional toll from doing CPR. Paper three — in New Zealand, paramedics breached patient rights at three times the rate of nurses per thousand practitioners. Paper four — drone-assisted triage works in trials but has never been proven in a real mass casualty.

Paper one — Resuscitation Plus. A population-based registry cohort from Japan — two thousand four hundred and seventy-eight cardiac arrests of medical origin between twenty sixteen and twenty twenty-four, split by arrest location. Just over thirty-six per cent of nursing home arrests showed an initial shockable rhythm, against about seven per cent at a private home and thirty-three per cent elsewhere. After adjustment, a shockable rhythm was more than twelve times more likely in a nursing home than at a home address. And ninety-seven per cent of those shockable nursing home cases received an AED shock. The authors think earlier AED access explains much of the gap — the rhythm is found sooner after collapse, before it deteriorates. The sting is in the outcomes: despite all those shockable rhythms, one-month survival with good neurological function was lowest in nursing homes, at under one per cent. It's descriptive data, so causation isn't proven. But residential aged care is a common arrest location here in Australia, and it's a good reminder that early rhythm detection through prompt AED use changes what crews walk in on.

Paper two — also Resuscitation Plus. A qualitative study from Scotland — semi-structured interviews with eleven bystanders who performed CPR on someone in cardiac arrest. Most knew the person — family, a teammate, a neighbour. Four themes came out: the emotional impact, juggling multiple roles in the moment, feeling compelled to help but unprepared, and wanting to talk to the right person afterwards. The impact was worst when the patient died or was known to the bystander. The authors point to better emotional preparation in CPR training, and the chance to speak with an independent person who knows cardiac arrest. Small, self-selected sample recruited through social media — take it as a signal, not a measurement. Still, it's a pattern experienced crews will recognise — the bystander left standing on the footpath needs support too, and the training could prepare them for that as well as the compressions.

Paper three — the Whitireia Journal of Nursing, Health and Social Services. A descriptive analysis of Health and Disability Commissioner decisions in New Zealand across a decade — one hundred and nine upheld breaches of the patient rights code, nine by paramedics and one hundred by nurses. The raw counts favour nursing, but per thousand practitioners, paramedics were three times more likely to breach the code, and breached at a higher severity. Right four — the right to services of an appropriate standard — was the most common breach in both professions. The caveat is obvious: nine paramedic cases is a tiny number, and published decisions only capture what gets reported and upheld. The authors frame it against underreporting culture — fear and punitive structures keep errors quiet. Error reporting culture is a live issue across Australian services too, so this one is context worth having.

Paper four — the Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. A scoping review of twenty studies on drone-assisted remote triage in mass casualty and prehospital care. Capturing heart rate, respiratory rate, temperature, oxygen saturation and consciousness from the air is technically feasible. But only one study reached the question that matters — a randomised comparison where drone-assisted triage took about three and a half minutes longer, with identical accuracy. There's no validated remote triage standard, and no validation in a real-world response. Drones are being trialled in Australia, so worth knowing exactly where the evidence stops.

Quick recap. One — nursing home arrests are far more often shockable, likely thanks to early AED access, though survival there remains poor. Two — bystander CPR takes a real emotional toll, and better preparation and support could soften it. Three — per practitioner, New Zealand paramedics breached patient rights more often, and more severely, than nurses. Four — drone triage is feasible in trials but unproven in the real world.

Also on the dashboard today — a foetal heart monitor streamed from the ambulance during maternal transfer, and lab work on haemolysis in stored whole blood. That's the roundup for Sunday the first of November. Papers on the dashboard. Back tomorrow.