Tailored Vessel-Catheter Diameter Ratio in a Direct Aspiration First-Pass Technique: Is It a Matter of Caliber?

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FIG 1.
Study flow chart.
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FIG 2.
The plot shows the trend of successful revascularization (line with dot) and a first-pass effect (dotted line with triangle) together with the tendency line among different intervals of vessel-to-catheter ratios. As observed, after the respective cutoff (≤1.51 and ≤1.33) for mTICI ≥ 2b and first-pass effect, the trend remains stable.

Table 1:

Clinical details

	Patients with MCA Stroke (n = 111)
Age (median) (95% CI) (yr)	73 (71.0–76.8)
Male (No.) (%)	66 (59.5%)
BMI (median and 95% CI)	24.9 (23.8–25.4)
Family history (No.) (%)	82 (7.5%)
Smoking (No.) (%)	20 (18.0%)
Atrial fibrillation (No.) (%)	39 (35.1%)
Arterial hypertension (No.) (%)	64 (57.7%)
Obesity (No.) (%)	13 (11.7%)
Atrial septal defect (No.) (%)	5 (4.5%)
Total cholesterol level (median) (95% CI)	155 (148.0–168.1)
HDL (median) (95% CI)	42 (41.0–45.0)
LDL (median) (95% CI)	108.0 (94.1–115.0)
HbA1c (median) (95% CI)	6.0 (5.9–6.0)
NIHSS score	16.0 (15.0–18.0)

Note:—BMI indicates body mass index; HDL, high-density lipoprotein; LDL, low-density lipoprotein; HbA1c, glycated hemoglobin.

Table 2:

Technical details

	Patients with MCA Stroke (n = 111)
Wake-up stroke (No.) (%)	23 (20.7%)
Time to groin puncture (median) (95% CI) (h)	4.3 (4.1–4.5)
Fibrinolysis (No.) (%)	64 (57.7%)
Catheter inner diameter (No.) (%)
1.09 mm (3MAX)	1 (0.9%)
1.37mm (3MAX)	3 (2.7%)
1.47mm (3MAX)	2 (1.8%)
1.52 mm (3MAX)	29 (26.1%)
1.62.mm (3MAX)	4 (3.6%)
1.63 mm (3MAX)	1 (0.9%)
1.73 mm (3MAX)	71 (64.0%)