# Easing the hour before surgery.

Agent contract: 1.2.0

A randomized trial found that giving prostate-cancer patients AI-drafted, personalized answers before they met their surgeon lowered anxiety and reduced the surgeon’s workload.

Canonical: https://brightaifuture.com/discoveries/preop-llm
Format: discovery
Source publication: 2026-09-26
Bright publication: 2026-09-27
Substantive update: None recorded
Evidence and review: Demonstrated; confidence: medium; source-checked; ai-assisted. AI-assisted source check against the npj Digital Medicine article (abstract and reported results; trial NCT07082049). Full paper not reviewed by Bright; no independent clinical review is claimed.

## The human problem

The conversation before surgery carries a lot of fear, and surgeons have limited time to answer every question well.

## The prior constraint

Patients relied on a single, time-pressured face-to-face conversation to get their questions answered.

## AI’s actual role

A locally deployed large language model drafted personalized answers to each patient’s questions before the in-person conversation.

## The documented result

Among 268 randomized patients, the AI-assisted group reported lower anxiety (GAD-7 3.2 vs 5.7) and lower physician workload (NASA-TLX 39.9 vs 56.8), with shorter conversations (11.3 vs 19.9 minutes); all differences were statistically significant.

## Why it may matter

For these patients, the tool eased a stressful moment and shortened the documented pre-operative conversation.

## Limitations

A single-centre trial of 268 patients in one cancer type, randomized by room. Bright reviewed the abstract of the peer-reviewed early-access paper; the specific model is not named there, and independent replication is unknown.

## Unresolved questions

Does the benefit hold in other procedures, centres and patient populations?

## Provenance and history

{
  "dates": {
    "eventDate": null,
    "publicationDate": "2026-09-26",
    "captureDate": "2026-09-27",
    "lastReviewedDate": "2026-09-27"
  },
  "provenance": {
    "origin": "editorial",
    "externalId": "preop-llm"
  },
  "revisions": [
    {
      "id": "revision:intake-20260927-preop-llm",
      "recordedAt": "2026-09-27",
      "summary": "Added to Bright from the 27 Sep 2026 intake as a bounded, source-checked record.",
      "sourceIds": [
        "source:preop-llm"
      ]
    }
  ],
  "corrections": []
}

## Original sources

- [LLM-assisted preoperative communication reduces patient anxiety and physician workload in prostate cancer: a prospective randomized phase II trial · npj Digital Medicine](https://www.nature.com/articles/s41746-026-03309-7)

## Continue exploring

- [Health & biology](https://brightaifuture.com/worlds/health)
- [People & culture](https://brightaifuture.com/worlds/culture)
- [What if the body could answer intention again?](https://brightaifuture.com/threads/agency)