The influence of microwave radiation on transdermal delivery systems.

The British journal of dermatology · 1990 · No effect · Low evidence

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No effectLow evidencePaper 6267

Study snapshot

PublicationThe British journal of dermatology · 1990

Study typeother

Reported directionNo effect

Evidence ratingLow

Abstract

It has been alleged that the exposure of a transdermal delivery system to leakage of microwave radiation from a domestic microwave oven can result in the user receiving a second-degree burn in the area of the patch. Several transdermal delivery systems were exposed to microwave radiation from an Electro Medical Supplies Microtron 200 microwave diathermy unit. Temperature rises of up to 2.2 degrees C were recorded at a maximum power density of 800 W/m2. These temperature rises were considered insignificant compared to that required to produce a burn. The exposure of transdermal delivery systems to a microwave diathermy field or lower level leakage radiation from a microwave oven is unlikely to cause direct thermal injury to the wearer.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeother

Effect directionno_effect

PopulationNot supplied

Sample sizeNot supplied

Exposuremicrowave

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Several transdermal delivery systems exposed to microwave radiation from a microwave diathermy unit showed temperature rises up to 2.2°C at a maximum power density of 800 W/m2. The authors considered these rises insignificant for producing a burn and concluded such exposure (including lower-level microwave oven leakage) is unlikely to cause direct thermal injury to the wearer.

Outcomes measured

Temperature rise at/around transdermal delivery systems
Potential for thermal injury/burns from microwave exposure

Limitations

Sample size not reported in abstract
Exposure frequency and duration not reported in abstract
Outcome focused on temperature rise/thermal injury only

View raw extracted JSON

{
  "study_type": "other",
  "exposure": {
    "band": "microwave",
    "source": "microwave diathermy unit; domestic microwave oven leakage (discussed)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Temperature rise at/around transdermal delivery systems",
    "Potential for thermal injury/burns from microwave exposure"
  ],
  "main_findings": "Several transdermal delivery systems exposed to microwave radiation from a microwave diathermy unit showed temperature rises up to 2.2°C at a maximum power density of 800 W/m2. The authors considered these rises insignificant for producing a burn and concluded such exposure (including lower-level microwave oven leakage) is unlikely to cause direct thermal injury to the wearer.",
  "effect_direction": "no_effect",
  "limitations": [
    "Sample size not reported in abstract",
    "Exposure frequency and duration not reported in abstract",
    "Outcome focused on temperature rise/thermal injury only"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "microwave radiation",
    "microwave diathermy",
    "microwave oven leakage",
    "transdermal delivery system",
    "skin burn",
    "thermal effects",
    "power density",
    "temperature rise"
  ],
  "suggested_hubs": []
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1111/j.1365-2133.1990.tb08284.x
PubMed: 2322499

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