Melodic algorithms for pulse oximetry to allow audible discrimination of abnormal systolic blood pressures.
An anesthesiologist must remain vigilant of the patient's clinical status, incorporating many independent physiological measurements. Oxygen saturation and heart rate are represented by continuous audible tones generated by the pulse oximeter, a mandated monitoring device. Other important clinical p...
| Published in: | Journal of Clinical Monitoring & Computing Vol. 28; no. 6; pp. 597 - 604 |
|---|---|
| Main Authors: | , , |
| Format: | research Journal Article |
| Published: |
Springer Nature
Dec2014
|
| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=109766623&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 109766623 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13871307 OHC jtl: Journal of Clinical Monitoring & Computing issn: 13871307 maglogo: N pubinfo: dt: Dec2014 vid: 28 iid: 6 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 109766623 NLM24474369 2012819673 10.1007/s10877-014-9558-6 NLM24474369 109766623 ppf: 597 ppct: 7 formats: fmt: @attributes: type: P tig: atl: Melodic algorithms for pulse oximetry to allow audible discrimination of abnormal systolic blood pressures. aug: au: Chima, Ranjit S Ortega, Rafael Connor, Christopher W sug: subj: Algorithms Blood Pressure Determination Methods Laboratory Equipment and Supplies Diagnosis, Computer Assisted Methods Hypertension Diagnosis Hypotension Diagnosis Music Acoustic Stimulation Methods Auditory Perception Blood Pressure Female Human Male Intraoperative Monitoring Methods Oximetry Methods Reproducibility of Results Sensitivity and Specificity Female Male ab: An anesthesiologist must remain vigilant of the patient's clinical status, incorporating many independent physiological measurements. Oxygen saturation and heart rate are represented by continuous audible tones generated by the pulse oximeter, a mandated monitoring device. Other important clinical parameters--notably blood pressure--lack any audible representation beyond arbitrarily-configured threshold alarms. Attempts to introduce further continuous audible tones have apparently foundered; the complexity and interaction of these tones have exceeded the ability of clinicians to interpret them. Instead, we manipulate the tonal and rhythmic structure of the accepted pulse oximeter tone pattern melodically. Three melodic algorithms were developed to apply tonal and rhythmic variations to the continuous pulse oximeter tone, dependent on the systolic blood pressure. The algorithms distort the original audible pattern minimally, to facilitate comprehension of both the underlying pattern and the applied variations. A panel of anesthesia practitioners (attending anesthesiologists, residents and nurse anesthetists) assessed these algorithms in characterizing perturbations in cardiopulmonary status. Twelve scenarios, incorporating combinations of oxygen desaturation, bradycardia, tachycardia, hypotension and hypertension, were tested. A rhythmic variation in which additional auditory information was conveyed only at halftime intervals, with every other "beat" of the pulse oximeter, was strongly favored. The respondents also strongly favored the use of musical chords over single tones. Given three algorithms of tones embedded in the pulse oximeter signal, anesthesiologists preferred a melodic tone to signal a significant change in blood pressure. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|