Biomaterial Database

Accurate measurement of intraarterial pressure through radial artery catheters in neonates. 1990

W W Hack, and N Westerhof, and T Leenhoven, and A Okken

Department of Pediatrics, University Hospital, Free University, Amsterdam, The Netherlands.

A technique is described for accurate measurement of intraarterial pressure through radial artery catheters in neonates. The technique, which can be used for short-term monitoring, uses cannulation of the radial artery with a 24-gauge Teflon catheter, connected by a Luer-Lok fitting to a three-way stopcock and a high-fidelity tip transducer. In vitro studies showed that the system is linear and the frequency response is flat (+/- 3 dB) up to 50 Hz. The technique permits gathering of high-quality pressure data and can be used in the area of neonatal clinical research for short-term monitoring. It needs to be developed further before routine application in clinical practice can be recommended.

UI	MeSH Term	Description	Entries
D008991	Monitoring, Physiologic	The continuous measurement of physiological processes, blood pressure, heart rate, renal output, reflexes, respiration, etc., in a patient or experimental animal; includes pharmacologic monitoring, the measurement of administered drugs or their metabolites in the blood, tissues, or urine.	Patient Monitoring,Monitoring, Physiological,Physiologic Monitoring,Monitoring, Patient,Physiological Monitoring
D002406	Catheterization, Peripheral	Insertion of a catheter into a peripheral artery, vein, or airway for diagnostic or therapeutic purposes.	Arterial Catheterization, Peripheral,Catheterization, Bronchial,Catheterization, Peripheral Arterial,Catheterization, Peripheral Venous,Peripheral Catheterization,Venous Catheterization, Peripheral,Bronchial Catheterization,PICC Line Catheterization,PICC Line Placement,PICC Placement,Peripheral Arterial Catheterization,Peripheral Venous Catheterization,Peripherally Inserted Central Catheter Line Insertion,Arterial Catheterizations, Peripheral,Bronchial Catheterizations,Catheterization, PICC Line,Catheterizations, Bronchial,Catheterizations, PICC Line,Catheterizations, Peripheral,Catheterizations, Peripheral Arterial,Catheterizations, Peripheral Venous,PICC Line Catheterizations,PICC Line Placements,PICC Placements,Peripheral Arterial Catheterizations,Peripheral Catheterizations,Peripheral Venous Catheterizations,Placement, PICC,Placement, PICC Line,Placements, PICC,Placements, PICC Line,Venous Catheterizations, Peripheral
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001158	Arteries	The vessels carrying blood away from the heart.	Artery
D013933	Thumb	The first digit on the radial side of the hand which in humans lies opposite the other four.	Thumbs
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor
D014160	Transducers, Pressure	Transducers that are activated by pressure changes, e.g., blood pressure.	Pressure Transducer,Pressure Transducers,Transducer, Pressure
D015924	Blood Pressure Monitors	Devices for continuously measuring and displaying the arterial blood pressure.	Monitors, Blood Pressure,Sphygmomanometers, Continuous,Blood Pressure Monitor,Continuous Sphygmomanometer,Continuous Sphygmomanometers,Monitor, Blood Pressure,Pressure Monitor, Blood,Pressure Monitors, Blood,Sphygmomanometer, Continuous