Table 3. Relationship of the number of coronary arteries affected by coronary artery disease and treatment, with the medical diagnosis of individuals hospitalized for acute coronary syndrome. Coronary Care Unit and Ward, Hospital São Paulo. São Paulo, SP, Brazil, 2012.
| Medical diagnosis | p | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UA* (n=22) |
NSTEMI†
(n=19) |
STEMI‡
(n=109) |
Total (n=150) |
||||||||||
| n | % | n | % | n | % | n | % | ||||||
| Number of arteries | |||||||||||||
| One artery | 4 | 18.2 | 11 | 57.9 | 38 | 34.9 | 53 | 35.3 | 0.029§ | ||||
| Two arteries | 10 | 45.5 | 3 | 15.8 | 38 | 34.9 | 51 | 34.0 | 0.127§ | ||||
| Three arteries | 8 | 36.4 | 5 | 26.3 | 30 | 27.5 | 43 | 28.7 | 0.684§ | ||||
| Trunk of left coronary artery | 2 | 9.1 | 0 | 0 | 1 | 0.9 | 3 | 2.0 | 0.097|| | ||||
| Treatment | |||||||||||||
| Clinical | 12 | 54.5 | 7 | 36.8 | 1 | 0.9 | 20 | 13.3 | <0.001|| | ||||
| Percutaneous coronary intervention – anterior descending artery | 3 | 13.6 | 5 | 26.3 | 57 | 52.3 | 65 | 43.3 | 0.001§ | ||||
| Percutaneous coronary intervention – circumflex artery | 0 | 0 | 2 | 10.5 | 14 | 12.8 | 16 | 10.7 | 0.219|| | ||||
| Percutaneous coronary intervention – right coronary artery | 0 | 0 | 1 | 5.3 | 23 | 21.1 | 24 | 16.0 | 0.011|| | ||||
| Percutaneous coronary intervention – trunk of left coronary artery | 0 | 0 | 0 | 0 | 1 | 0.9 | 1 | 0.7 | 1.000|| | ||||
| Myocardial revascularization surgery | 7 | 31.8 | 4 | 21.1 | 18 | 16.5 | 19 | 19.3 | 0.223|| | ||||
*
Unstable angina
†
Non-ST segment elevation acute myocardial infarction
‡
ST segment elevation acute myocardial infarction
||
Fisher's exact test
§
Pearson's Chi-squared test