Biomaterial Database

Cutaneous postocclusive reactive hyperemia monitored by laser doppler flux metering and skin temperature. 1985

J Ninet, and A Fronek

The initial Laser Doppler Flux (LDF) values and skin temperature in the first, third, and fifth finger were evaluated as well as the postocclusion reactive hyperemia (PORH) response to a 4-min suprasystolic compression. The mean values varied from 276.5 to 335.3 mV while the skin temperature ranged from 32.5 to 34.2 degrees. The LDF-monitored PORH response was very reproducible with an average increase of 144.7 +/- 63.6 mV (from an initial LDF value of 327.1 +/- 134 mV). Four different time-related indices were analyzed: t/2recovery = 6.0 +/- 5.5 sec; trecovery (time to reach the initial value) = 16.7 +/- 11.5 sec; tmax (peak of overshoot) = 48.2 +/- 20.6 sec and t/2 overshoot (time to reach 50% of the tmax on the downslope) = 97.4 +/- 31.8 sec. The simultaneously monitored skin temperature changes lagged significantly behind the LDF changes probably due to the large heat capacitance of the tissue. It is expected that the described results obtained from 20 normal subjects will serve as a basis for future clinical studies involving skin perfusion disorders.

UI	MeSH Term	Description	Entries
D007834	Lasers	An optical source that emits photons in a coherent beam. Light Amplification by Stimulated Emission of Radiation (LASER) is brought about using devices that transform light of varying frequencies into a single intense, nearly nondivergent beam of monochromatic radiation. Lasers operate in the infrared, visible, ultraviolet, or X-ray regions of the spectrum.	Masers,Continuous Wave Lasers,Pulsed Lasers,Q-Switched Lasers,Continuous Wave Laser,Laser,Laser, Continuous Wave,Laser, Pulsed,Laser, Q-Switched,Lasers, Continuous Wave,Lasers, Pulsed,Lasers, Q-Switched,Maser,Pulsed Laser,Q Switched Lasers,Q-Switched Laser
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
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
D012146	Rest	Freedom from activity.	Rests
D003251	Constriction, Pathologic	The condition of an anatomical structure's being constricted beyond normal dimensions.	Stenosis,Stricture,Constriction, Pathological,Pathologic Constriction,Constrictions, Pathologic,Pathologic Constrictions,Pathological Constriction,Stenoses,Strictures
D005260	Female		Females
D005542	Forearm	Part of the upper extremity in humans and primates extending from the ELBOW to the WRIST.	Antebrachium,Antebrachiums,Forearms
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006940	Hyperemia	The presence of an increased amount of blood in a body part or an organ leading to congestion or engorgement of blood vessels. Hyperemia can be due to increase of blood flow into the area (active or arterial), or due to obstruction of outflow of blood from the area (passive or venous).	Active Hyperemia,Arterial Hyperemia,Passive Hyperemia,Reactive Hyperemia,Venous Congestion,Venous Engorgement,Congestion, Venous,Engorgement, Venous,Hyperemia, Active,Hyperemia, Arterial,Hyperemia, Passive,Hyperemia, Reactive,Hyperemias,Hyperemias, Reactive,Reactive Hyperemias