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Results for “VASOMOTOR DRUGS”

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At least 37 records · Page 2Linked to original sources
PubMed1980

A new trial in endoscopic diagnosis for stomach cancer:intra-arterial dye (IAD) method.

Forty gastric cancers were examined by endoscopy before and after the injection of Evans blue or indigo carmine dye into the celiac artery. Seventeen of these lesions were also examined after injection of vasomotor drugs. The authors conclude that these techniques permitted more precise endoscopic deliniation of the size and extent of cancerous lesions, particularly those otherwise obscured by overlying, intact epithelium.

Adenocarcinoma↗
PubMed1994

Hypovolemic shock and resuscitation.

Hypovolemic shock is the manifestation of hypoperfusion from inadequate intravascular volume resulting in cellular hypoxia. Early, effective treatment tailored to the individual patient will minimize morbidity and mortality. The causes and end-organ responses can differ with each patient, requiring an understanding of the underlying physiology and pathophysiology. Treatment always consists of oxygen and isotonic crystalloids and may require the use of colloids, corticosteroids, antibiotics, and vasomotor drugs.

Animals↗
PubMed1977

Septic shock in a pregnant or recently pregnant woman.

Septic shock may be classified clinically as primary (reversible) or secondary (irreversible). Primary shock is further distinguished as early ("warm-hypotensive") or late ("cold-hypotensive"). Infected abortion, chorioamnionitis, or pyelonephritis of pregnancy calls for appropriate measures directed toward preventing septic shock, including administration of huge doses of antibiotics. If septic shock ensues, extirpation of the nidus of infection becomes a primary consideration. Surgical extirpation should be carried out if possible, and as soon as possible. Besides antibiotics, patients with septic shock may require glucocorticoids, vasomotor drugs, digitalis, and heparin. Careful monitoring is essential.

Female↗
PubMed1995

Development of an autoflow cruise control system for a centrifugal pump.

To improve the ease of driving a centrifugal pump that is afterload dependent, we have developed an automatic flow control system for the Terumo Capiox centrifugal pump system. This system consists of an autoflow cruise control system with a safety cutoff. The Capiox Pump Console 3000 was controlled by a personal computer through a serial communication line. In the usual manual mode, the motor speed knob works as a pump speed control, and in the autoflow mode, the same knob works as a blood flow rate control. After selecting and obtaining the desired flow rate, the mode was changed from manual to autoflow mode. In the autoflow mode, the computer compares the desired flow rate with the actual flow measured by an ultrasonic Doppler flowmeter and adjusts the motor rotational speed accordingly. During both in vivo and in vitro testing, this autoflow mode was able to return the changed flow that was disrupted by either clamping and declamping of the tubing or by the bolus injection of a vasomotor drug to the selected flow rate within 10 s without any significant fluctuation. In conclusion, the newly developed computer controlled autoflow system was able to produce a reliable and effective flow regulation for a centrifugal pump.

Animals↗
PubMed1989

Almitrine decreases the distensibility of the large pulmonary arteries in man.

Almitrine improves blood gas values in patients with COPD, primarily through better ventilation-perfusion matching. The improvement comes largely from a vasomotor effect of the drug. The vasomotor mechanism is unknown. We suspected that decreased distensibility of the large pulmonary arteries was one probable effect of the drug. If present, reduced distensibility would explain many of the hemodynamic alterations produced by almitrine. To test this idea, we measured the diameter of the right pulmonary artery during systole and diastole both before and after almitrine administration in nine patients who were undergoing pulmonary cineangiography. Our calculations of the distensibility of the right pulmonary artery showed that almitrine caused a 60 percent decrease. This significant alteration in the stiffness of the large pulmonary arteries can account for the rise in systolic pressure, a change that would be expected to redistribute pulmonary blood flow upwards and thereby improve ventilation-perfusion balance.

Adult↗