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Results for “PULMONARY STENOSIS”

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At least 37 records · Page 2Linked to original sources
PubMed1992

Efficacy of balloon valvuloplasty in treating mild pulmonary stenosis.

Balloon pulmonary valvuloplasty (BPV) is a well accepted treatment for moderate and severe pulmonary stenosis. However, the efficacy of BPV in treating mild pulmonary stenosis is still unanswered. Therefore, the efficacy of BPV in treating patients with mild pulmonary stenosis was compared to that in treating patients with moderate or severe pulmonary stenosis. A total of 46 patients with pulmonary stenosis were arbitrarily divided into 3 groups; Group I consisted of 9 patients with a pressure gradient less than 40 mm Hg, Group II consisted of 5 patients with a pressure gradient ranged from 40 to 50 mm Hg, and Group III consisted of 32 patients with a gradient greater than 50 mm Hg. Following BPV, the gradient reduced significantly in all 3 groups (p less than 0.05 in each group). The efficacy of BPV in the 3 groups was evaluated and compared by two parameters; one is the percentage of gradient reduction, the other is the right ventricular pressure ratio (RV post-bpv/RV pre-bpv). The percentage of gradient reduction in Group I, II, and III were 28 +/- 20, 55 +/- 17 and 70 +/- 9% respectively. The right ventricular pressure remained 84 +/- 11, 59 +/- 16, and 46 +/- 12% of pre-valvuloplasty level in Group I, II and III respectively. If the efficacy of BPV was compared among the 3 groups. Groups III had the best efficacy and Group I had the worst.(ABSTRACT TRUNCATED AT 250 WORDS)

Catheterization↗
PubMed2002

Is Doppler an accurate predictor of catheterization gradients for postoperative branch pulmonary stenosis?

Branch pulmonary stenosis may develop after repair of congenital heart disease. Echocardiography, used for the serial evaluation of these patients, yields Doppler gradients that are used in decisions regarding the need for intervention for branch pulmonary stenosis. The purpose of this study was to assess the value of Doppler echocardiography in quantifying the degree of branch pulmonary stenosis in patients who were postoperative. Patients after repair of transposition of the great arteries (n = 14), truncus arteriosus (n = 12), or tetralogy of Fallot (n = 14) who underwent echocardiography within 3 months of a postoperative catheterization were identified. Doppler peak instantaneous gradients were compared with catheter peak-to-peak gradients. Despite significant correlation between Doppler and catheterization peak gradients, Doppler gradients tended to overestimate the catheterization gradients, and the agreement between the 2 measurements was poor. These findings suggest that Doppler gradients should be interpreted cautiously in this setting.

Adolescent↗
PubMed1976

An interventricular septal defect, pulmonary stenosis and bicuspid pulmonary valve in a Welsh pony foal.

A 6 month Welsh pony filly with an interventricular septal defect in conjunction with a pulmonary stenosis due to a bicuspid pulmonary valve is described. The animal had poor exercise tolerance, a loud pansystolic murmur and a precordial thrill. Blood pressure and oxygen tension values obtained during cardiac catheterization suggested the diagnosis which was confirmed at autopsy.

Animals↗