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Biotelemetry and patient monitoring最新文献

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Transcutaneous PO2 monitoring in routine observation of newborns. 经皮PO2监测在新生儿常规观察中的应用。
Biotelemetry and patient monitoring Pub Date : 1982-01-01
S Maigaard, J G Klebe, F V Kristiansen
{"title":"Transcutaneous PO2 monitoring in routine observation of newborns.","authors":"S Maigaard,&nbsp;J G Klebe,&nbsp;F V Kristiansen","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>TcPO2 was monitored in 209 of 814 infants admitted to the premature ward connected to our obstetric department. The majority of the infants were monitored less than 14 h. Approximately 77% of the infants were treated with up to 40% O2, while for a period the remaining infants were treated with more than 40% O2. TcPO2 values were generally controlled to the desirable range of 7-12 kPa (50-90 mm Hg). The daily handling of the equipment was performed by the nursing staff, who found good correlation between the TcPO2 measurement and clinical observations. The importance of application of the electrode in the preductal area is stressed to avoid hyperoxemia in the retinal vessels.</p>","PeriodicalId":75603,"journal":{"name":"Biotelemetry and patient monitoring","volume":"9 1","pages":"36-44"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17861756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Flow measurements in the nose of unrestrained domestic rabbits: a pilot study. 无约束家兔鼻流量测量:一项初步研究。
Biotelemetry and patient monitoring Pub Date : 1982-01-01
N Tans, G Verberne
{"title":"Flow measurements in the nose of unrestrained domestic rabbits: a pilot study.","authors":"N Tans,&nbsp;G Verberne","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":75603,"journal":{"name":"Biotelemetry and patient monitoring","volume":"9 2","pages":"89-97"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18131350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biotelemetry in local clearance studies with radionuclides using cadmium telluride detectors. 使用碲化镉探测器进行放射性核素局部清除研究中的生物遥测。
Biotelemetry and patient monitoring Pub Date : 1982-01-01
J Bojsen, B Staberg, K Kølendorf
{"title":"Biotelemetry in local clearance studies with radionuclides using cadmium telluride detectors.","authors":"J Bojsen,&nbsp;B Staberg,&nbsp;K Kølendorf","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Small, gamma-sensitive, cadmium-telluride [CdTe(C1)] detectors are evaluated for biotelemetry of the local clearance of an injected radioactive depot in tissue. The lateral displacement dependence and depth dependence are determined with 99mTc as radiation source. Perspex is used as attenuation and scattering medium. With 133Xe injected into subcutaneous tissue the effect of a geometrical adjustment of the CdTe(C1) detector prior to measurement is studied. Examples of 133Xe disappearance curves are shown during rest and ergometry bicycling.</p>","PeriodicalId":75603,"journal":{"name":"Biotelemetry and patient monitoring","volume":"9 3","pages":"144-53"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18176145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determining range area from location data. 根据位置数据确定范围区域。
Biotelemetry and patient monitoring Pub Date : 1982-01-01
N Hough
{"title":"Determining range area from location data.","authors":"N Hough","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":75603,"journal":{"name":"Biotelemetry and patient monitoring","volume":" ","pages":"10-7"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40718527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Trials of an acoustic transponding fish tag compass. 声应答鱼标罗经的试验。
Biotelemetry and patient monitoring Pub Date : 1982-01-01
R B Mitson, T J Storeton-West, N D Pearson
{"title":"Trials of an acoustic transponding fish tag compass.","authors":"R B Mitson,&nbsp;T J Storeton-West,&nbsp;N D Pearson","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The instantaneous orientation of a fish can be determined by attaching a magnetic compass sensor to it and then by acoustically telemetering the information to a research vessel's electronic sector scanning sonar. The sensor is housed in a cylindrical capsule with an acoustic transponder to which it is electronically interconnected. Its size and weight are such that it can be fitted to fish of about 40 cm length and above. An operational life of 52 h is obtained from the tag when it is interrogated by the sonar at a consistent rate of 2 pulses s-1. If the rate is reduced by half, the life can be extended to about 68-70 h. Directional accuracy is limited to +/- 22.5 degrees by the physical size of components used in the sensor. Trials of the prototype are described.</p>","PeriodicalId":75603,"journal":{"name":"Biotelemetry and patient monitoring","volume":"9 2","pages":"69-79"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18131348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Rotterdam teletransducer. A telemetric device for measuring epidural pressure. 鹿特丹遥测器。测量硬膜外压力的遥测装置。
Biotelemetry and patient monitoring Pub Date : 1982-01-01
D A de Jong, A I Maas, M W Berfelo, A H den Ouden, S A de Lange
{"title":"The Rotterdam teletransducer. A telemetric device for measuring epidural pressure.","authors":"D A de Jong,&nbsp;A I Maas,&nbsp;M W Berfelo,&nbsp;A H den Ouden,&nbsp;S A de Lange","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A discussion on the clinical value of telemetric measurements of intracranial pressure is presented. The technical improvements of an earlier described implantable epidural transducer are reported. Furthermore, the results are given of an in vivo study in dogs of the relation between epidural pressure as measured by this device and ventricular fluid pressure for variable physiologic conditions. An evaluation of the implantation technique is included and a justification for the selection of the constituting materials is given. Clinical results obtained in a patient are illustrated.</p>","PeriodicalId":75603,"journal":{"name":"Biotelemetry and patient monitoring","volume":"9 3","pages":"154-65"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18175055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An on-line computer system for monitoring respiratory and cardiac functions of patients. 用于监测患者呼吸和心脏功能的在线计算机系统。
Biotelemetry and patient monitoring Pub Date : 1982-01-01
T Nakamura, Y Miyamoto, K Sakakibara, T Tamura, M Takahashi, T Hiura, T Mikami
{"title":"An on-line computer system for monitoring respiratory and cardiac functions of patients.","authors":"T Nakamura,&nbsp;Y Miyamoto,&nbsp;K Sakakibara,&nbsp;T Tamura,&nbsp;M Takahashi,&nbsp;T Hiura,&nbsp;T Mikami","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A computer-based noninvasive and continuous patient monitoring system for breath-by-breath assessment of cardiorespiratory functions was developed. Transthoracic impedance changes caused by respiratory and cardiac activities were measured with separate impedance plethysmographs of different frequencies. A mini-computer system calculated on-line eight respiratory parameters (VT, f, VE, PETO2, PETCO2, VO2, VCO2, and R) in cooperation with expired gas analysis data from a mass-spectrometer, and three cardiac parameters (SV, HR and Q). These parameters were displayed simultaneously at the end of each breath. In order to improve the signal-to-noise ratio of the impedance cardiogram to a level allowing computer determination, an ensemble averaging technique was utilized. The computer-derived cardiorespiratory parameters obtained during voluntary hyperventilation and a passive tilt demonstrated reasonable changes.</p>","PeriodicalId":75603,"journal":{"name":"Biotelemetry and patient monitoring","volume":"9 1","pages":"49-62"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17861757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of electrode temperatures on monitoring of transcutaneous carbon dioxide (TcPCO2) in prematures. 电极温度对早产儿经皮二氧化碳(TcPCO2)监测的影响。
Biotelemetry and patient monitoring Pub Date : 1982-01-01
P Vesterager
{"title":"Effect of electrode temperatures on monitoring of transcutaneous carbon dioxide (TcPCO2) in prematures.","authors":"P Vesterager","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>To establish the optimal electrode temperature for monitoring of transcutaneous PCO2 (TcPCO2) in neonates, a study was performed using electrode temperatures of 37, 42, and 44 degrees C, respectively. The tests were performed by means of TcPCO2 electrodes designed by Radiometer A/S, Copenhagen. In 22 neonates 22 paired values of TcPCO2 and arterial PCO2 (PaCO2) were obtained at each of the above-mentioned electrode temperatures. The correlation coefficient obtained at an electrode temperature of 37 degrees C was 0.83. At electrode temperatures of 42 and 44 degrees C the correlation coefficients were improved to 0.96 and 0.94, respectively, TcPCO2 always being higher than the simultaneously measured PaCO2. An enlarged study comprising 32 neonates at an electrode temperature of 42 degrees C showed the regression line between PaCO2 (mm Hg) and TcPCO2 (mm Hg) to be PaCO2 = 0.81 . TcPCO2 - 2.8.</p>","PeriodicalId":75603,"journal":{"name":"Biotelemetry and patient monitoring","volume":"9 1","pages":"18-27"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17861825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pulmonary atresia and transposition of the great arteries. Monitoring of the transcutaneous oxygen tension during palliative measures in two cases. 肺动脉闭锁和大动脉转位。两例姑息措施中经皮氧张力的监测。
Biotelemetry and patient monitoring Pub Date : 1982-01-01
G Nielsen, H Oxhøj
{"title":"Pulmonary atresia and transposition of the great arteries. Monitoring of the transcutaneous oxygen tension during palliative measures in two cases.","authors":"G Nielsen,&nbsp;H Oxhøj","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Congenital malformations of the heart may disturb the central circulation fundamentally. Two such conditions can be treated palliatively in the neonatal period. In pulmonary atresia patency of the ductus arterious of Botallo can be maintained by administration of prostaglandin E1, and in transposition of the great arteries an atrial septal defect can be created by balloon septostomy. We report 2 cases, where transcutaneous PO2 was recorded while these procedures were carried out. In both cases we obtained immediate information of the effect of the procedures, and subsequent treatment could be modified continuously according to changes in the transcutaneous PO2.</p>","PeriodicalId":75603,"journal":{"name":"Biotelemetry and patient monitoring","volume":"9 1","pages":"45-8"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17244840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Monitoring of PCO2 by skin surface sensors. 皮肤表面传感器监测二氧化碳分压。
Biotelemetry and patient monitoring Pub Date : 1982-01-01
W Mindt, P Eberhard, R Schäfer
{"title":"Monitoring of PCO2 by skin surface sensors.","authors":"W Mindt,&nbsp;P Eberhard,&nbsp;R Schäfer","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The methodology of cutaneous PCO2 measurement and the results of the first clinical studies performed with a newly developed sensor are reported. The in vitro data of the sensor are: sensitivity 55 mV/decade; response time tau 90% = 50 s; drift less than 10% per 24 h; no measurable interference by oxygen and anesthetic gases. At a sensor temperature of 44 degrees C, the correlation between arterial PCO2 and cutaneous PCO2 is significant, with correlation coefficients above 0.95 both in case of neonates and adult patients. The cutaneous PCO2 is, however, consistently higher than arterial PCO2, and a correction of the cutaneous PCO2 value needs to be performed. At 44 degrees C, the time lag between changes of cutaneous PCO2 and arterial PCO2 is about 2-3 min as estimated from capnometric measurements. At lower sensor temperatures, the correlation between arterial and cutaneous PCO2 is still good; however, the physiological response time of the cutaneous PCO2 measurement becomes prohibitively long.</p>","PeriodicalId":75603,"journal":{"name":"Biotelemetry and patient monitoring","volume":"9 1","pages":"28-35"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17861826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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