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Simultaneous laser Doppler and transcutaneous oxygen tension measurements in claudicant patients. 1995

E J Diamantopoulos, and N P Stavreas, and D P Roussis, and D N Charitos, and S N Vasdekis, and S A Raptis
2nd Department of Internal Medicine-Propaedeutic, Athens University Medical School, Evangelismos Hospital, Greece.

Laser Doppler (LD) flux and transcutaneous oxygen tension (TcPO2) were measured in supine and sitting position at the dorsum of the foot with local skin temperature of 37 degrees C and 44 degrees C in 50 patients with stage IIb of chronic peripheral arterial occlusive disease (CPAOD) and in 30 healthy controls. The statistical analysis showed no significant differences between patients and controls in the supine and sitting position at 37 degrees C. A lower increase of LD- flux and TcPO2 could be noticed during hyperthermia and reactive hyperaemia in the patients group as well as a significant prolongation of oxygen (ORT) and flux reappearance time, of postocclusion time to peak flux and oxygen peak, of postocclusion time to half of peak flux and oxygen peak and of time to flux restoration at preocclusion levels (FTMAX) during reactive hyperaemia test. FTMAX and ORT allowed a clear separation between patients and controls and exhibited a high reproducibility. A regression analysis equation was derived with the most significant parameters indicating the presence and the severity of the disease. Moreover, the estimated time parameters of LD - flux and TcPO2 were correlated with the US - Doppler ankle systolic blood pressure indices and therefore with the impairment of the macrocirculation. In summary, we find that skin perfusion in patients with intermittent claudication is not different from normal subjects under basal conditions. However, maximal perfusion is reduced and the time to peak perfusion after a provocative stimulus is delayed.(ABSTRACT TRUNCATED AT 250 WORDS)

UI MeSH Term Description Entries
D006979 Hyperthermia, Induced Abnormally high temperature intentionally induced in living things regionally or whole body. It is most often induced by radiation (heat waves, infra-red), ultrasound, or drugs. Fever Therapy,Hyperthermia, Local,Hyperthermia, Therapeutic,Thermotherapy,Induced Hyperthermia,Therapeutic Hyperthermia,Therapy, Fever,Local Hyperthermia
D007383 Intermittent Claudication A symptom complex characterized by pain and weakness in SKELETAL MUSCLE group associated with exercise, such as leg pain and weakness brought on by walking. Such muscle limpness disappears after a brief rest and is often relates to arterial STENOSIS; muscle ISCHEMIA; and accumulation of LACTATE. Claudication, Intermittent
D008297 Male Males
D008833 Microcirculation The circulation of the BLOOD through the MICROVASCULAR NETWORK. Microvascular Blood Flow,Microvascular Circulation,Blood Flow, Microvascular,Circulation, Microvascular,Flow, Microvascular Blood,Microvascular Blood Flows,Microvascular Circulations
D011187 Posture The position or physical attitude of the body. Postures
D012044 Regression Analysis Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable. Regression Diagnostics,Statistical Regression,Analysis, Regression,Analyses, Regression,Diagnostics, Regression,Regression Analyses,Regression, Statistical,Regressions, Statistical,Statistical Regressions
D001785 Blood Gas Monitoring, Transcutaneous The noninvasive measurement or determination of the partial pressure (tension) of oxygen and/or carbon dioxide locally in the capillaries of a tissue by the application to the skin of a special set of electrodes. These electrodes contain photoelectric sensors capable of picking up the specific wavelengths of radiation emitted by oxygenated versus reduced hemoglobin. Carbon Dioxide Partial Pressure Determination, Transcutaneous,Cutaneous Oximetry,Oximetry, Transcutaneous,Oxygen Partial Pressure Determination, Transcutaneous,Transcutaneous Blood Gas Monitoring,Transcutaneous Capnometry,Transcutaneous Oximetry,PtcO2,TcPCO2,Capnometries, Transcutaneous,Capnometry, Transcutaneous,Cutaneous Oximetries,Oximetries, Cutaneous,Oximetries, Transcutaneous,Oximetry, Cutaneous,Transcutaneous Capnometries,Transcutaneous Oximetries
D005260 Female Females
D005528 Foot The distal extremity of the leg in vertebrates, consisting of the tarsus (ANKLE); METATARSUS; phalanges; and the soft tissues surrounding these bones. Feet
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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