A. Garson et al., PAYMENT AND PRACTICE VARIATION IN CONGENITAL HEART-DISEASE - AN INTERNATIONAL STUDY, South African medical journal, 86, 1996, pp. 25-29
Cost-effectiveness analyses suggest that if outcomes are approximately
similar, examination of practice and price variation provides potenti
al targets for improvement in quality and/or reduction in cost. We exa
mined variations in practice patterns and price with regard to congeni
tal heart disease in nine countries. Standardised descriptions of 5 ty
pical patients, 1 each with aortic stenosis, pulmonary stenosis, atrio
ventricular septal defect, tetralogy of Fallot and tricuspid atresia w
ere provided to the investigators who quantitated a typical course (fr
om birth to 21 years of age) for each patient in terms of: clinic visi
ts, outpatient echocardiogram, outpatient Holter, diagnostic catheteri
sation, therapeutic catheterisation, medical hospitalisation, surgical
hospitalisation and years on medication. Payments for each service in
the public and private system were based on data from each country. W
e found that in respect of practice patterns, there was an average of
400% variation, with the greatest variation in clinic, outpatient echo
cardiogram, outpatient Holter and medical hospitalisation costs. The o
verall use of services was lowest in Australia and Japan and highest i
n Canada and Italy. Pricewise, there was a 380% variation, with the gr
eatest variation in the prices of medication and inpatient services. I
n the private sector in particular, prices were highest in Japan, the
USA and Germany, and lowest in South Africa and France; in the public
sector, prices were highest in Canada, Japan and Germany, and lowest i
n South Africa and Australia. Overall, the average worldwide payments
for congenital heart disease from birth to 21 years of age were as fol
lows: mild aortic stenosis $3 851; mild pulmonary stenosis $7 319; tet
ralogy of Fallot $36 456; atrioventricular septal defect $39 772; tric
uspid atresia $74 940. The mean was $32 968. Payments were highest in
the USA, Japan and Italy, and lowest in Australia and South Africa. In
conclusion: (i) there is significant practice and price variation in
paediatric cardiology services throughout the world; and (ii) further
study of the need for services in which there is high variation (outpa
tient echocardiogram, Holter and medical admissions) is warranted, sin
ce significant reduction in these services may be possible with consid
erable savings and no reduction in quality.