Biomaterial Database

Tissue pH monitoring by a disposable sensor in critically ill neonates. 1985

U Chaudhry, and R Bhat

Using a new disposable polymer sensor, tissue pH was continuously monitored successfully in 33 critically ill neonates. Tissue pH correlated well with the arterial pH at wide pH ranges [n = 476; r = .84; y = 0.46 + (0.94)x]. Tissue pH changes accurately reflected the arterial pH during both respiratory and metabolic acidosis and alkalosis. During severe metabolic acidosis (arterial pH less than 7.10) tissue pH was lower than arterial pH. No complications were encountered during or after monitoring. Compared with earlier studies using a glass electrode, this electrode reflects a marked technologic improvement because of its ease of application, longevity of use, disposability, and decreased risk of complications in small preterm infants. Unlike transcutaneous oxygen and carbon dioxide sensors, this device is invasive but is not heated and does not require frequent site changes.

UI	MeSH Term	Description	Entries
D007231	Infant, Newborn	An infant during the first 28 days after birth.	Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D007232	Infant, Newborn, Diseases	Diseases of newborn infants present at birth (congenital) or developing within the first month of birth. It does not include hereditary diseases not manifesting at birth or within the first 30 days of life nor does it include inborn errors of metabolism. Both HEREDITARY DISEASES and METABOLISM, INBORN ERRORS are available as general concepts.	Neonatal Diseases,Disease, Neonatal,Diseases, Neonatal,Neonatal Disease
D007363	Intensive Care Units, Neonatal	Hospital units providing continuing surveillance and care to acutely ill newborn infants.	Neonatal Intensive Care Unit,Neonatal Intensive Care Units,Newborn Intensive Care Unit,Newborn Intensive Care Units,ICU, Neonatal,Neonatal ICU,Newborn ICU,Newborn Intensive Care Units (NICU),ICU, Newborn,ICUs, Neonatal,ICUs, Newborn,Neonatal ICUs,Newborn ICUs
D008297	Male		Males
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
D002138	Calibration	Determination, by measurement or comparison with a standard, of the correct value of each scale reading on a meter or other measuring instrument; or determination of the settings of a control device that correspond to particular values of voltage, current, frequency or other output.	Calibrations
D003422	Critical Care	Health care provided to a critically ill patient during a medical emergency or crisis.	Intensive Care,Intensive Care, Surgical,Surgical Intensive Care,Care, Critical,Care, Intensive,Care, Surgical Intensive
D004209	Disposable Equipment	Apparatus, devices, or supplies intended for one-time or temporary use.	Equipment, Disposable
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man