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Therapeutic coronary intervention after primary coronary angiography, TROMSØ 2000: 104

Bjørsvik, G.; Arnesen, E.

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European Journal of Anaesthesiology: June 2004 - Volume 21 - Issue - p 32

Introduction: This study presents the therapeutic consequences of primary coronary angiography (CA) in 1230 individuals living in the northern region of Norway, having their first CA at the University Hospital in Tromsø in 2000.

Method: A total of 1588 individuals having undergone CA in 2000 were identified by searching the data registry at the hospital. Those having undergone CA, percutaneous coronary intervention (PCI) or coronary artery bypass surgery (CABG) prior to the year 2000 and residents from other regions of Norway were excluded. The findings were validated by reading all available information in the medical records. By this, additionally 96 individuals were excluded. By comparing the laboratory protocols with the medical records another 44 individuals were included, expanding the total number of primary CA to 1230 individuals. These individuals were followed to register the frequency of primary interventional treatment, PCI or CABG.

All percentages are age-adjusted by the direct method and CI 95% [1].

Results: Coronary interventional treatment was performed in 58.5% of women and in 83.3% of men. The age-adjusted difference between men and women was 24.8% (CI 95% 19.2-30.4). PCI was performed in 39.8% women and in 53.3% men. The age-adjusted difference was 13.5% (CI 95% 7.5-19.5). CABG was performed in 15.7% of women and in 25.6% of men. Combined heart-valve surgery and CABG was performed in 3.0% of women and in 4.4% of men.

Table 1
Table 1:
Intervention after primary CA, distributed on sex, with age-adjusted percentages (%), Tromsø 2000.

Discussion: The results in this study confirm the findings from others that there is an increasing frequency of patients with coronary artery disease being treated with PCI. Among patients having their first CA in Tromsø in 2000, 49.4% were treated with PCI, whereas 26.7% had either CABG (22.6%) or combined CABG and heart-valve surgery (4.1%). This study also supports the observation and the ongoing discussion on sex differences in invasive interventions for coronary artery disease [2]. More men then women were treated with PCI or CABG (or combined CABG and valve surgery) in all age groups.


1 Kirkwood BR. Essentials of Medical Statistics, Oxford: Blackwell, 1998.
2 Malenka DJ, Wennberg DE, Quinton HA, et al. Gender-related changes in the practice and outcomes of percutaneous interventions in Northern New England from 1994 to 1999. J Am Coll Cardiol 2002; 40: 2092-2101.
© 2004 European Society of Anaesthesiology