Scholarlink

Purpose <p>To determine whether capillary blood gas carbon dioxide values can substitute for arterial sampling to calibrate transcutaneous carbon dioxide during polysomnography.</p> Methods <p>Participants underwent capillary (arterialized earlobe) and blood gas (radial artery) sampling at polysomnography commencement (Evening) and end (Morning). Participant and scientist sample preference, and participant pain were recorded. The transcutaneous offset from the corresponding arterial/capillary sample, and the transcutaneous electrode drift over the night were determined.</p> Results <p> Seventy-five people consented and 44 had complete paired timepoint data. Both the capillary and arterial carbon dioxide values were higher than the transcutaneous (capillary evening mean -0.9 ± standard deviation 2.8, capillary morning -2.5 ± 3.9, arterial evening -3.7 ± 2.7, arterial morning -5.6 ± 3.8 mmHg). Capillary and arterial measures were comparable for assessing transcutaneous carbon dioxide drift (mean difference -0.3 mmHg (95% confidence interval -1.3, 0.7). The failure rate for both techniques was equivalent. Patients and scientists both preferred the capillary method.</p> Conclusion <p> Capillary blood gas sampling of carbon dioxide levels from the earlobe is feasible. Capillary sampling provides a comparable measure of transcutaneous carbon dioxide drift, but not absolute offset, during polysomnography to that observed with radial arterial sampling. Importantly, patients prefer the capillary technique as it is less painful.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Capillary versus arterial blood gases. Accuracy, acceptability, and suitability for use during sleep studies to calibrate transcutaneous carbon dioxide measurement

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月8日

查看全文
  • Nicole L. Sheers,
  • Linda Rautela,
  • Steven James Lindstrom,
  • Krisha Saravanan,
  • Jennifer Cori,
  • Danny Brazzale,
  • Elisa San Pedro,
  • Michelle Mason,
  • Peter D. Rochford,
  • Christine F. McDonald,
  • David J. Berlowitz,
  • Mark E. Howard

摘要

Purpose

To determine whether capillary blood gas carbon dioxide values can substitute for arterial sampling to calibrate transcutaneous carbon dioxide during polysomnography.

Methods

Participants underwent capillary (arterialized earlobe) and blood gas (radial artery) sampling at polysomnography commencement (Evening) and end (Morning). Participant and scientist sample preference, and participant pain were recorded. The transcutaneous offset from the corresponding arterial/capillary sample, and the transcutaneous electrode drift over the night were determined.

Results

Seventy-five people consented and 44 had complete paired timepoint data. Both the capillary and arterial carbon dioxide values were higher than the transcutaneous (capillary evening mean -0.9 ± standard deviation 2.8, capillary morning -2.5 ± 3.9, arterial evening -3.7 ± 2.7, arterial morning -5.6 ± 3.8 mmHg). Capillary and arterial measures were comparable for assessing transcutaneous carbon dioxide drift (mean difference -0.3 mmHg (95% confidence interval -1.3, 0.7). The failure rate for both techniques was equivalent. Patients and scientists both preferred the capillary method.

Conclusion

Capillary blood gas sampling of carbon dioxide levels from the earlobe is feasible. Capillary sampling provides a comparable measure of transcutaneous carbon dioxide drift, but not absolute offset, during polysomnography to that observed with radial arterial sampling. Importantly, patients prefer the capillary technique as it is less painful.