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Heated Operating Table, Warming Mattress or Forced Air: Preventing Hypothermia in Theatre

Updated 14 October 2026 · 4 min read

A heated operating table is one of several ways to keep anaesthetised patients warm, since general and regional anaesthesia impair temperature regulation and theatre rooms are kept cool. Perioperative hypothermia is a recognised risk, and warming is normally part of a protocol rather than a single device. This article explains the options, how they interact with an operating table, and what to specify when you buy.

Why patient warming matters in the OR

Anaesthesia shifts heat from the core to the periphery, exposed skin and cold fluids add losses, and cool rooms are common because the team works under drapes, gowns and lights. A core temperature below about 36 degrees Celsius is generally considered hypothermia, and guidelines recommend monitoring temperature and actively warming patients where appropriate.

Which patients and procedures need which measures is a clinical decision for the anaesthesia team. The equipment buyer's task is to make sure the right options are available and compatible with the table.

Options: heated table top, warming mattress and others

Heating can come from the table itself, from a separate warming mattress or pad placed on the table, from forced-air blankets over the patient, from warmed intravenous fluids, or a combination. A patient warming operating table solution should be judged by how well it warms without creating pressure or burn risk.

An operating table warming mattress is the most flexible option because it can be moved between tables and replaced independently. A built-in heated top avoids a separate device but ties the warming function to that table.

  • Warming mattress or pad: portable, replaceable, needs a controller and cable
  • Heated table top: integrated, but depends on that table model
  • Forced-air warming: placed over the patient, works with any table
  • Fluid warming: complements any surface warming

What to check in a heated surgical table pad

A heated surgical table pad must meet the electrical safety requirements of IEC 60601-1 and have temperature controls and independent over-temperature protection. Check the maximum surface temperature, the uniformity, the time to warm and whether the pad is rated for the weight and positioning you use, including Trendelenburg and lateral positions.

Confirm radiolucency if X-ray or C-arm imaging is used, and check how the pad affects the table's height range and pressure redistribution. Ask the supplier for instructions on cleaning, since a pad is exposed to fluids.

Ask also about replacement: pads wear with repeated cleaning and positioning, so confirm the expected service life, the cost of replacement covers and the lead time for spares in the UAE.

Compatibility with your operating table

Any warming mattress has to sit securely on the table top and not interfere with the sections, the rails or the straps. Cable routing matters on a table that moves and tilts, and battery-powered tables should have a defined place for the controller. The Lojer Smarter Practico, for example, is an electric table with Li-ion battery operation and a hand control, which helps keep floors free of mains cables, but the warming solution should be agreed with the supplier for your configuration.

Do not assume a table includes active warming: ask which warming options are offered for the specific model and confirm in writing what is supplied. For a general selection checklist, see the operating table buying guide.

Putting warming into your protocol

Combine equipment with practice: pre-warming where appropriate, temperature monitoring, keeping the patient covered, warming fluids and managing theatre temperature. Train staff on correct pad placement and on inspecting skin, and include the warming devices in your maintenance programme.

To discuss warming solutions compatible with your tables, request a quotation from Beckfinity's specialists on our contact page.

Common mistakes include buying a mattress without checking radiolucency, leaving the controller without a defined place so that the cable ends up on the floor, and omitting warming devices from acceptance testing. Settling these points in the specification costs far less than correcting them after commissioning.

Frequently asked questions

Does every operating table have a heated top?

No. Many tables rely on separate warming mattresses or forced-air devices. Ask the supplier what is available for the specific model.

Is a warming mattress safe to use under the patient?

Warming mattresses are designed for this, with temperature control and protection, but they should be used according to the manufacturer's instructions with skin checks and clinical judgement.

Can I use a warming mattress during C-arm imaging?

Only if it is specified as radiolucent. Confirm this with the supplier before purchase.

Who decides on patient warming?

The anaesthesia team, following hospital protocol. The equipment should simply support those choices.

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