Abstract：
OBJECTIVE:Various studies worldwide have found that sound levels in hospitals significantly exceed the World Health Organization (WHO) guidelines, and that this noise is associated with audible signals from various medical devices. The pulse oximeter is now widely used in health care; however the health effects associated with the noise from this equipment remain largely unclarified. Here, we analyzed the sounds of variable-pitch pulse oximeters, and discussed the possible associated risk of sleep disturbance, annoyance, and hearing loss. METHODS:The Nellcor N 595 and Masimo SET Radical pulse oximeters were measured for equivalent continuous A-weighted sound pressure levels (L(Aeq)), loudness levels, and loudness. Pulse beep pitches were also identified using Fast Fourier Transform (FFT) analysis and compared with musical pitches as controls. RESULTS:Almost all alarm sounds and pulse beeps from the instruments tested exceeded 30 dBA, a level that may induce sleep disturbance and annoyance. Several alarm sounds emitted by the pulse oximeters exceeded 70 dBA, which is known to induce hearing loss. The loudness of the alarm sound of each pulse oximeter did not change in proportion to the sound volume level. The pitch of each pulse beep did not correspond to musical pitch levels. CONCLUSIONS:The results indicate that sounds from pulse oximeters pose a potential risk of not only sleep disturbance and annoyance but also hearing loss, and that these sounds are unnatural for human auditory perception.
journal_name
J Clin Monit Computjournal_title
Journal of clinical monitoring and computingauthors
Yamanaka H,Haruna J,Mashimo T,Akita T,Kinouchi Kdoi
10.1007/s10877-008-9125-0subject
Has Abstractpub_date
2008-06-01 00:00:00pages
199-207issue
3eissn
1387-1307issn
1573-2614journal_volume
22pub_type
杂志文章abstract：:Electrical impedance tomography (EIT) is used in lung physiology monitoring. There is evidence that EIT is linearly associated with global tidal volume (VT) in clinically healthy patients where no positive end-expiratory pressure (PEEP) is applied. This linearity has not been challenged by altering lung conditions. Th...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-021-00651-x
更新日期：2021-01-25 00:00:00
abstract：OBJECTIVE:This study tests the hypothesis that a graphical object display (a data display consisting of meaningful shapes) will affect the ability of anesthesiologists to perform a diagnostic task rapidly and correctly. The diagnostic tasks studied were recognition and differentiation of five etiologies of shock--anaph...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1023/a:1009914019889
更新日期：1999-01-01 00:00:00
abstract：:The recently developed technique for measuring cutaneous mitochondrial oxygen tension (mitoPO2) by means of the Protoporphyrin IX-Triplet State Lifetime Technique (PpIX-TSLT) provides new opportunities for assessing mitochondrial function in vivo. The aims of this work were to study whether cutaneous mitochondrial mea...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-014-9628-9
更新日期：2015-08-01 00:00:00
abstract：OBJECTIVE:To determine whether a simple transcanial Doppler waveform variable-pulsatility difference (systolic - diastolic blood flow velocity) can serve as a measure of critical changes in cerebral perfusion. METHODS:Thirteen pigs were anesthetized (anesthesia maintained with halothane) and ventilated to maintain nor...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1023/a:1009993232534
更新日期：1999-05-01 00:00:00
abstract：:Tissue perfusion monitoring is increasingly being employed clinically in a non-invasive fashion. In this end-of-year summary of the Journal of Clinical Monitoring and Computing, we take a closer look at the papers published recently on this subject in the journal. Most of these papers focus on monitoring cerebral perf...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章,评审
doi：10.1007/s10877-020-00504-z
更新日期：2020-06-01 00:00:00
abstract：:This report presents a method for tracking Motor Evoked Potential (MEP) amplitudes over the course of a case using a moving least squares linear regression (LSMAs). During a case, newly obtained MEP amplitudes are compared to those predicted by a just previous linear regression (least squares moving average or LSMA). ...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-018-0181-9
更新日期：2019-06-01 00:00:00
abstract：:Increasing process complexity in the pediatric intensive care unit (PICU) can lead to information overload resulting in missing pertinent information and potential errors during morning rounds. An efficient model using a novel electronic rounding tool was designed as part of a broader critical care decision support sy...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-016-9946-1
更新日期：2017-12-01 00:00:00
abstract：:Cerebrovascular autoregulation (CA) is often impaired following traumatic brain injury. Established technologies and metrics used to assess CA are invasive and conducive for measurement, but not for continuous monitoring. We developed a trans-ocular brain impedance (TOBI) method that may provide non-invasive and conti...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-020-00556-1
更新日期：2020-07-14 00:00:00
abstract：OBJECTIVE:In mechanical ventilation, the assessment of pulmonary mechanics, mainly of total compliance (Crs), total resistance (Rrs), and intrinsic positive end-expiratory pressure (PEEPint), is clinically important. By using airway pressure (Paw) and flow (V'aw), the least squares fit (LSF) method allows the continuou...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1023/a:1007457829405
更新日期：1998-02-01 00:00:00
abstract：:Perioperative goal-directed therapy is considered to improve patient outcomes after high-risk surgery. The association of compliance with perioperative goal-directed therapy protocols and postoperative outcomes is unclear. The purpose of this study is to determine the effect of protocol compliance on postoperative out...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-020-00585-w
更新日期：2020-09-12 00:00:00
abstract：:In this paper is presented a brief state of art regarding the multivariable formulation for controlling the depth of anaesthesia by means of two intravenously administrated drugs, i.e. propofol and remifentanil. In a feasibility study of determining a suitable variable to quantify analgesia levels in patients undergoi...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-013-9535-5
更新日期：2014-12-01 00:00:00
abstract：:Changes have been made to the AnaConDa device (Sedana Medical, Stockholm, Sweden), decreasing its size to reduce dead space and carbon dioxide (CO2) retention. However, this also involves a decrease in the surface area of the activated carbon filter. The CO2 elimination and sevoflurane (SEV) reflection of the old devi...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-019-00285-0
更新日期：2020-02-01 00:00:00
abstract：:Amidst controversy about methodology and safety, intraoperative neurophysiology has entered a new era of increasingly routine transcranial and direct electrical brain stimulation for motor evoked potential (MEP) monitoring. Based on literature review and illustrative clinical experience, this tutorial aims to present ...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章,评审
doi：10.1007/s10877-006-9033-0
更新日期：2006-10-01 00:00:00
abstract：:The optimal size selection of laryngeal mask airway (LMA) based on body weight is not always applicable. This study was prospectively conducted to evaluate the efficacy of cricoid-mental distance-based method versus weight-based method in optimal size selection of LMA in adults. Seventy-four patients (aged from 18 to ...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10877-019-00308-w
更新日期：2019-10-01 00:00:00
abstract：:The eye lens is one of the most sensitive organs for radiation injury and exposure might lead to radiation induced cataract. Eye lens dosimetry in anesthesiology has been published in few clinical trials and an active debate about the causality of radiation induced cataract is still ongoing. Recently, the Internationa...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-016-9857-1
更新日期：2017-04-01 00:00:00
abstract：:Closed loop target-control infusion systems using a Bispectral (BIS) signal as an input (TCI Loop) can automatically maintain intravenous anesthesia in a BIS range of 40-60 %. Our purpose was to assess to what extent such a system could decrease anesthesia workload in comparison to the use of a stand alone TCI system ...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10877-013-9453-6
更新日期：2014-02-01 00:00:00
abstract：OBJECTIVE:Upper airway obstruction is the most rapid and clinically relevant cause of hypoxia during sedation and anesthesia. This study was designed to determine if respiratory inductance plethysmography (RIP) could quantify the degree of upper airway obstruction caused by induction of general anesthesia. METHODS:RIP...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1023/a:1021246119194
更新日期：2002-07-01 00:00:00
abstract：:Changes in expired nitric oxide (NO) occur in airway inflammation and have proved to be important in the monitoring of inflammatory disease processes such as asthma. We set out to develop a novel hand-held NO-analyzer with a performance comparable to the present more costly and complex chemiluminescence instruments. T...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-005-1158-z
更新日期：2004-12-01 00:00:00
abstract：:Arterial blood gas (ABG) analysis is an essential tool in the clinical assessment of acutely ill patients. Venous to arterial conversion (v-TAC), a mathematical method, has been developed recently to convert peripheral venous blood gas (VBG) values to arterialized VBG (aVBG) values. The aim of this study was to test t...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-018-0197-1
更新日期：2019-08-01 00:00:00
abstract：:An intraoperative automated closed-loop system for goal-directed fluid therapy has been successfully tested in silico, in vivo and in a clinical case-control matching. This trial compared intraoperative cardiac output (CO) in patients managed with this closed-loop system versus usual practice in an academic medical ce...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10877-018-0106-7
更新日期：2018-12-01 00:00:00
abstract：:Excessive pressures exerted on the tongue during intubation may be associated with serious complications and may make intubation more difficult. The aim of this study was to evaluate five different intubating devices in the hands of experienced anaesthetists during simulated conditions of reduced cervical spine mobili...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-017-0095-y
更新日期：2018-10-01 00:00:00
abstract：:Monitors evaluating the electroencephalogram (EEG) to determine depth of anaesthesia use spectral analysis approaches for analysis windows up to 61.5 s as well as additional smoothing algorithms. Stationary EEG is required to reliably apply the index algorithms. Because of rapid physiological changes, artefacts, etc.,...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10877-014-9553-y
更新日期：2014-12-01 00:00:00
abstract：:Audible pulse tones, based on a variable-pitch frequency scale, allow the anesthesiologist to determine the patient's oxygen saturation without constant visual examination of the monitor display. The ability to reliably detect oxygen saturation levels based on audible pulse tones may be compromised when multiple pulse...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1023/b:jocm.0000032698.47717.06
更新日期：2004-04-01 00:00:00
abstract：OBJECTIVE:Conventional sphygmomanometers are being replaced by automated devices; can they be used to accurately calculate ABPI? METHOD:Thirty-six volunteers (72 legs) attending a vascular clinic had their ankle, brachial blood pressure and ABPIs calculated using each of these 3 methods. (1) Conventional aneuroid BP c...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-008-9146-8
更新日期：2008-10-01 00:00:00
abstract：:The capnography is an important monitor to assess the patient's respiratory status. Importance of education for clinicians in interpretation of alarms and various capnography waveforms in different clinical scenarios and equipment malfunction is an understatement. Capnography waveforms due to sample line tube leak is ...
journal_title：Journal of clinical monitoring and computing
pub_type： 信件
doi：10.1007/s10877-019-00388-8
更新日期：2020-08-01 00:00:00
abstract：:With the AnaConDa™ and the MIRUS™ system, volatile anesthetics can be administered for inhalation sedation in intensive care units. Instead of a circle system, both devices use anesthetic reflectors to save on the anesthetic agent. We studied the efficiency of desflurane reflection with both devices using different ti...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-016-9902-0
更新日期：2018-08-01 00:00:00
abstract：OBJECTIVE:Mixtures of helium and oxygen are regaining a place in the treatment of obstruction of the upper and lower respiratory tract. The parenchymal changes during the course of IRDS or ARDS may also benefit from the reintroduction of helium/oxygen. In order to monitor and document the effect of low-density gas mixt...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1023/a:1009978816071
更新日期：1998-08-01 00:00:00
abstract：:This prospective study evaluates haemodynamic and electroencephalographic effects observed when administering four combinations of effect-site concentrations of propofol (CePROP) and remifentanil (CeREMI), all yielding a single predicted probability of tolerance of laryngoscopy of 90% (PTOL = 90%) according to the Bou...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-020-00540-9
更新日期：2020-06-03 00:00:00
abstract：:Near-infrared spectrophotometry assesses cerebral oxygen saturation (ScO2) based on the absorption spectra of oxygenated and deoxygenated hemoglobin, and the translucency of biological tissue, in the near-infrared band. There is increasing evidence that optimising cerebral oxygenation, guided by ScO2, is associated wi...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-014-9642-y
更新日期：2015-10-01 00:00:00
abstract：:This study aimed to evaluate the 50% and 95% effective paratracheal forces for occluding the esophagus in anesthetized patients. In 46 anesthetized patients, the upper esophagus was examined using ultrasonography, and the lower paratracheal area over the esophagus just above the clavicle was marked. Manual paratrachea...
journal_title：Journal of clinical monitoring and computing
pub_type： 杂志文章
doi：10.1007/s10877-021-00652-w
更新日期：2021-01-26 00:00:00
