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Results for “HEART CATHETERIZATION”

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At least 163 records · Page 9Linked to original sources
PubMed1977

[Prevention of arrhythmias during heart catheterization].

The utility of using beta blocking drugs, specifically Pindolol, as a prophylaxis for arrhythmia during cardiac microcatheterism according to Grandjean's technique has been observed. The drug is even more useful when it is considered that it does not affect dp/dt value.

Arrhythmias, Cardiac↗
PubMed1978

Transseptal left heart catheterization in infants and children.

Transseptal left heart catheterization was performed in 80 infants and children with various forms of congenital heart disease. The majority had left heart obstructive lesions. Forty percent were under 5 years of age and less than 20 kg in weight. Uncomplicated cardiac perforation occurred in two patients. The technique is described in detail with emphasis on measures which increase the safety of the procedure for the patient. We conclude that this is a useful technique and in selected patients may be the preferred approach to the left heart.

Adolescent↗
PubMed2000

A novel right-heart catheterization technique for in vivo measurement of vascular responses in lungs of intact mice.

The present study employed a new right-heart catheterization technique to measure pulmonary arterial pressure, pulmonary arterial wedge pressure, and pulmonary vascular resistance in anesthetized intact-chest, spontaneously breathing mice. Under fluoroscopic guidance, a specially designed catheter was inserted via the right jugular vein and advanced to the main pulmonary artery. Cardiac output was determined by the thermodilution technique, and measured parameters were stable for periods of </=3 h. Pressure-flow curves in vivo were curvilinear, with mean pulmonary arterial pressure increasing more rapidly at low pulmonary blood flows of 5-10 ml/min and less rapidly at higher blood flow rates. The pressure-flow relationship was shifted to the left by the nitric oxide synthase inhibitor nitro-L-arginine methyl ester (L-NAME) at higher blood flow levels, whereas the cyclooxygenase inhibitor sodium meclofenamate was without effect. The increase in pulmonary arterial pressure in response to acute hypoxia (fractional inspired O(2) 10%) was augmented by L-NAME but unaltered by sodium meclofenamate. The present results demonstrate that the right-heart catheterization technique can be used to measure pulmonary vascular pressures and responses in the mouse. This is, to our knowledge, the first report of a right-heart catheterization technique to measure pulmonary vascular pressures and responses in the intact-chest, spontaneously breathing mouse and should prove useful for the investigation of pulmonary vascular responses in transgenic mice.

Animals↗
PubMed1979

Percutaneous left heart catheterization and coronary arteriography using a femoral artery sheath.

Percutaneous left heart catheterization and coronary arteriography with a standard angiographic catheter introduced through a femoral artery sheath has been performed in over 200 patients during the past 12 months. The use of the sheath for catheter introduction and manipulation offers several advantages, including the capability of monitoring two arterial pressures with only one arterial puncture, the minimization of time in which the guidewire is intravascular, the capability of using all types of catheters from a femoral artery percutaneous approach, and, most importantly, the complete elimination of patient discomfort during catheter changes. The disadvantages of the sheath technique are relatively minor. Thus, percutaneous left heart catheterization and coronary arteriography through a femoral artery sheath can be performed safely and with relatively little trauma to the femoral artery.

Angiocardiography↗