Clinical investigation of transradial access for emergent percutaneous coronary intervention in patients with acute myocardial infarction

Figures & data

Table 1 Patient characteristics, coronary angiography results, and lesion characteristics at baseline

Variable	Transradial group (n = 296)	Transfemoral group (n = 300)	Statistics Chi-square-test and t-test	P-value
Gender (male/female)	170/126	180/120	χ^2 = 0.3062	0.58
Age, years	58.4 ± 10.6	58.8 ± 10.4	t = 0.4649	>0.05
Hypertension	86 (29.1%)	90 (30.0%)	χ^2 = 0.0267	0.8703
Diabetes mellitus	60 (20.3%)	60 (20.0%)	χ^2 = ×10^−4	0.9841
Dyslipidemia	49 (16.6%)	50 (16.7%)	χ^2 = 0.0053	0.9417
Current smoker	115 (38.9%)	120 (43.3%)	χ^2 = 0.0412	0.839
CAG results
LAD	158 (53.4%)	160 (53.3%)
LCX	58 (19.6%)	60 (20.0%)	χ^2 = 0.0196	0.9902
RCA	80 (27.0%)	80 (26.7%)

Abbreviations: CAG, coronary angiography; LAD, left anterior descending coronary artery; LCX, left circumflex; RCA, right coronary artery.

Table 2 Objectives related to percutaneous coronary intervention

Objectives	Transradial group (n = 296)	Transfemoral group (n = 300)	Statistics t-test	P-value
Puncture time (minutes)	4.4 ± 1.6*	2.4 ± 0.8	19.26	<0.0001
CAG time (minutes)	8 ± 2.4	7.6 ± 2.0	1.64	>0.05
PCI time (minutes)	30 ± 6.8	29.6 ± 8.1	1.79	>0.05
X-ray exposure time (minutes)	4.6 ± 1.4	4.4 ± 1.3	1.81	>0.05
Duration of hospitalization (days)	3.2 ± 1.6*	5.4 ± 1.8	15.76	<0.0001

Note:

* P < 0.05 statistically significant.

Abbreviations: CAG, coronary angiography; PCI, percutaneous coronary intervention.

Table 3 Comparison of infarct-related vessel, heart rate, blood pressure, and heart function between the two groups

Objectives	Transradial group (n = 296)	Transfemoral group (n = 300)
Anterior myocardial infarction	154	154
Inferior myocardial infarction	126	128
NSTEMI	16	20
Heart rate (beats per minute)	86.4 ± 12.8	87.3 ± 13.2
SBP/DBP (mmHg)	110 ± 16.8/70 ± 9.8	108 ± 17.0/72 ± 10.0
Killip classification
I	270	265
II	26	30
III	–	5

Abbreviations: DBP, diastolic blood pressure; SBP, systolic blood pressure; NSTEMI, non-ST elevation myocardial infarction.