Erratum to “Slender Sheath/Guiding Catheter Combination vs. Sheathless Guiding Catheter for Acute Coronary Syndrome: A Propensity-Matched Analysis of the Two Devices”

In the article titled “Slender Sheath/Guiding Catheter Combination vs. Sheathless Guiding Catheterfor Acute Coronary Syndrome: A Propensity-Matched Analysis of the Two Devices” [1], there were errors in Tables 2, 3, and 4. In each of these tables the n value was incorrectly given as n = 397 for the propensity-matched population in both the Glidesheath and Sheathless columns. The correct value is n = 364. This mistake occurred during the production of the article, and the publisher apologises for this error.

The corrected tables are shown below and are listed as Tables 2–4, respectively.

Table 2.

Procedural characteristics of the study population.

Variables	Total population			Propensity-matched population
	Glidesheath n = 397	Sheathless n = 711	P	Glidesheath n = 364	Sheathless n = 364	P
LAD/diagonal, n (%)	196 (49.4)	318 (44.7)	0.15	179 (49.2)	170 (46.7)	0.55
LCX/marginal, n (%)	37 (9.3)	144 (20.3)	<0.001	33 (9.1)	72 (19.8)	<0.001
RCA, n (%)	139 (35.0)	217 (30.5)	0.14	132 (36.3)	109 (30.0)	0.08
LMCA, n (%)	25 (6.3)	32 (4.5)	0.20	20 (5.5)	13 (3.6)	0.29
Guiding catheter type
LAD/diagonal (JL/EBU/others), n (%)	143 (73.0)/51 (26.0)/2(1.0)	263 (82.7)/54 (17.0)/1 (0.3)	0.025	132 (73.7)/46 (25.7)/1 (0.6)	144 (84.7)/26 (15.3)/0(0)	0.033
LCX/marginal (JL/EBU/others), n (%)	13 (35.1)/23 (62.2)/1 (2.7)	79 (54.9)/65 (45.1)/0 (0)	0.019	12 (36.4)/20 (60.6)/1 (3.0)	42 (58.3)/30 (41.7)/0(0)	0.050
RCA (JR/AL/others), n (%)	101 (72.7)/30 (21.6)/8 (5.7)	157 (72.4)/58 (26.7)/2 (0.9)	0.018	97 (73.5)/28 (21.2)/7 (5.3)	81 (74.3)/26 (23.9)/2(1.8)	0.22
LMCA (JL/EBU/others), n (%)	15 (60.0)/9 (36.0)/1 (4.0)	28 (87.5)/3 (9.4)/1 (3.1)	0.0046	14 (70.0)/6 (30.0)/0 (0)	12 (92.3)/1 (7.7)/0 (0)	0.12
True bifurcation lesion, n (%)	67 (16.9)	99 (13.9)	0.19	58 (15.9)	51 (14.0)	0.53
In-stent restenosis/occlusion, n (%)	26 (6.6)	39 (5.5)	0.58	24 (6.6)	18 (5.0)	0.43
Diffuse lesion, n (%)	264 (66.5)	434 (61.0)	0.080	246 (67.6)	228 (62.6)	0.19
Heavily calcified lesion, n (%)	13 (3.3)	10 (1.4)	0.047	12 (3.3)	5 (1.4)	0.14
Thrombus aspiration, n (%)	218 (54.9)	253 (35.6)	<0.001	203 (55.8)	135 (37.1)	<0.001
Rotablation, n (%)	8 (2.0)	6 (0.8)	0.16	7 (1.9)	2 (0.6)	0.18
Arterial access site
Left radial, n (%)	373 (94.0)	679 (95.5)	0.26	344 (94.5)	343 (94.2)	1.00
No. of previous iTRA attempts, median (min–max)	0 (0–9)	0 (0–11)	0.002	0 (0–9)	0 (0–11)	0.17
No. of previous iTRI attempts, median (min–max)	0 (0–7)	0 (0–7)	0.059	0 (0–7)	0 (0–7)	0.36

Data are presented as median (interquartile range) or n (%), unless otherwise indicated. “Glidesheath” denotes 7-Fr Glidesheath slender/7-Fr guiding catheter combination group, and “Sheathless” denotes 7.5-Fr sheathless guiding catheter group. The asterisk denotes a statistically significant difference between the two groups. AL, Amplatz type; EBU, extra backup type; iTRA, ipsilateral transradial coronary angiography; iTRI, ipsilateral transradial coronary intervention; JL, Judkins Left type; JR, Judkins Right type; LAD, left anterior descending coronary artery; LCX, left circumflex coronary artery; LMCA, left main coronary artery; RCA, right coronary artery.

Table 3.

Procedural outcomes.

Variables	Total population				Propensity-matched population
	Glidesheath n = 397	Sheathless n = 711	OR (95% CI)	P	Glidesheath n = 364	Sheathless n = 364	OR (95% CI)	P
Procedural success, n (%)	392 (98.7)	702 (98.7)	1.00 (0.99–1.01)	1.0	359 (98.6)	361 (99.2)	0.99 (0.98–1.01)	0.73
Coronary ostial dissection, n (%)	3 (0.8)	10 (1.4)	1.86 (0.52–6.72)	0.40	3 (0.8)	6 (1.7)	0.50 (0.13–1.98)	0.51
Access-site crossover from radial to femoral, n (%)	1 (0.3)	0 (0)	n/a	0.36	1 (0.3)	0 (0)	n/a	1.00
Total fluoroscopy time, min	22.4 (15.3–31.5)	18.2 (13.9–28.0)		<0.001	22.3 (15.3–31.5)	18.7 (13.8–29.5)		0.002
Contrast used, ml	128 (100–160)	127 (103–160)		0.67	128 (100–160)	133 (105–165)		0.11
No. of catheters used, median (min–max)	1 (1–5)	1 (1–4)		<0.001	1 (1–5)	1 (1–4)		0.016

Data are presented as median (interquartile range) or n (%), unless otherwise indicated. “Glidesheath” denotes 7-Fr Glidesheath slender/7-Fr guiding catheter combination group, and “Sheathless” denotes 7.5-Fr sheathless guiding catheter group. The asterisk denotes a statistically significant difference between the two groups. CI, confidence interval; n/a, not applicable; OR, odds ratio.

Table 4.

Periprocedural access-site complications.

Variables	Total population				Propensity-matched population
	Glidesheath n = 397	Sheathless n = 711	OR (95% CI)	P	Glidesheath n = 364	Sheathless n = 364	OR (95% CI)	P
RAD at 30 days, mm	2.0 (1.8–2.3)	2.1 (1.8–2.4)		0.15	2.0 (1.8–2.3)	2.1 (1.8–2.4)		0.06
End-procedural ACT, s	273 (231–312)	301 (250–376)		<0.001	273 (229–310)	289 (250–372)		<0.001
RAO at 30 days, n (%)	6 (1.5)	25 (3.5)	0.43 (0.18–1.04)	0.058	5 (1.4)	15 (4.1)	0.33 (0.12–0.91)	0.039
Severe radial spasm, n (%)	9 (2.3)	11 (1.6)	1.46 (0.61–3.49)	0.48	5 (1.4)	7 (1.9)	0.71 (0.23–2.22)	0.58
Access-site major bleeding within 30 days
BARC type 3 or 5, n (%)	5 (1.3)	9 (1.3)	0.99 (0.34–2.95)	1.00	5 (1.4)	6 (1.6)	0.83 (0.26–2.71)	1.00
BARC type 3, n (%)	5 (1.3)	9 (1.3)	0.99 (0.34–2.95)	1.00	5 (1.4)	6 (1.6)	0.83 (0.26–2.71)	1.00
BARC type 5, n (%)	0 (0)	0 (0)	n/a	n/a	0 (0)	0 (0)	n/a	n/a

Data are presented as median (interquartile range) or n (%), unless otherwise indicated. “Glidesheath” denotes 7-Fr Glidesheath slender/7-Fr guiding catheter combination group, and “Sheathless” denotes 7.5-Fr sheathless guiding catheter group. The asterisk denotes a statistically significant difference between the two groups. ACT; activated clotting time; BARC, bleeding academic research consortium; CI, confidence interval; n/a, not applicable; OR, odds ratio; RAD, radial artery diameter; RAO, radial artery occlusion.