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Correction: Effects of adaptive left bundle branch–optimized cardiac resynchronization therapy: a single centre experience
BMC Cardiovascular Disorders volume 22, Article number: 558 (2022)
The Original Article was published on 06 August 2022
Correction: BMC Cardiovascular Disorders (2022) 22:360 https://doi.org/10.1186/s12872-022-02742-2
Following publication of the original article [1], the author has changed the table 3 and it should read as follows:
Characteristics during a follow-up period of 9 months in patients implanted with a CRT-D/P (mean ± SD) (n = 21)
Total (n = 21) | Group 1 (n = 10) | Group 2 (n = 11) | P value | ||
|---|---|---|---|---|---|
NYHA classification score | Before procedure | 3.36 ± 0.50 | 3.4 ± 0.55 | 3.3 ± 0.52 | 0.840 |
3 Months after procedure | 2.54 ± 0.52 | 2.6 ± 0.55 | 2.5 ± 0.55 | 0.770 | |
9 Months after procedure | 2.45 ± 0.52 | 2.4 ± 0.55 | 2.5 ± 0.55 | 0.770 | |
P value | 0.000 | 0.032 | 0.024 | – | |
LVEDD (mm) | Before procedure | 65.1 ± 9.1 | 68.2 ± 12.3 | 62.6 ± 5.3 | 0.336 |
3 Months after procedure | 63.4 ± 10.1 | 64.4 ± 12.6 | 62.4 ± 8.3 | 0.781 | |
9 Months after procedure | 58.7 ± 10.2 | 62.2 ± 11.3 | 55.2 ± 8.7 | 0.303 | |
P value | 0.319 | 0.735 | 0.229 | – | |
LVEF (%) | Before procedure | 33.1 ± 3.0 | 32.0 ± 4.2 | 34.0 ± 1.3 | 0.302 |
3 Months after procedure | 40.9 ± 7.0 | 41.6 ± 7.5 | 40.3 ± 7.3 | 0.782 | |
9 Months after procedure | 45.4 ± 8.7 | 45.0 ± 5.1 | 45.8 ± 12.0 | 0.894 | |
P value | 0.002 | 0.011 | 0.143 | – | |
QRSd (ms) | Before procedure | 168.2 ± 18.9 | 158.0 ± 13.0 | 176.7 ± 19.7 | 0.104 |
9 Months after procedure | 131.4 ± 15.5 | 121.0 ± 3.8 | 133.3 ± 8.2 | 0.001 | |
P value | 0.001 | 0.005 | 0.011 | – | |
NT-ProBNP (pg/ml) | Before procedure | 2937 ± 1646 | 3240 ± 2258 | 2684 ± 1083 | 0.634 |
3 Months after procedure | 1832 ± 1541 | 1151 ± 1774 | 2066 ± 1444 | 0.607 | |
P value | 0.014 | 0.04 | 0.219 | – | |
VT/VF episodes (n) | 8 | 3 | 5 | 0.175 | |
Follow-up period (d) | 574 ± 188 | 572 ± 207 | 575 ± 190 | 0.981 | |
Also, the baseline QRSd value were changed from 33.9 ± 3.9% to 33.1 ± 3.0%.
So, the text under "Baseline characteristics" will read as follows:
The echocardiographic indices, including LVEF, LVEDD, NYHA classification, and NT-proBNP are shown in Table 3. Baseline parameters were similar between the two groups (all P > 0.05). The baseline LVEF and the baseline QRSd (Fig. 2a) were 33.1 ± 3.0% and 168.2 ± 18.9 ms, respectively. At baseline, the QRSd of the two groups were matched (158.0 ± 13.0, vs. 176.7 ± 19.7, P > 0.05).
Also, text under "Follow‑up" will read as follow: Transthoracic echocardiogram (Fig. 3b) evaluation data at baseline and at the 3-month and 9-month follow- ups were available in all 21 patients receiving successful aCRT. As shown in Table 3, the symptoms and the median NYHA classification score improved significantly, with the latter decreasing from 3.36 ± 0.50 to 2.45 ± 0.52 (P = 0.016). LVEF (33.1 ± 3.0% vs. 45.4 ± 8.7%, P = 0.002) and NT-proBNP (2937 ± 1646 vs. 1832 ± 1541, P = 0.014) significantly improved at the follow-up visit. LVEDD (65.1 ± 9.1 mm vs. 58.7 ± 10.2 mm, P = 0.319) was improved at the 9-month follow-up visit, but the improvement was not significant.
The original article has been corrected.
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Feng, XF., Yang, LC., Zhao, Y. et al. Correction: Effects of adaptive left bundle branch–optimized cardiac resynchronization therapy: a single centre experience. BMC Cardiovasc Disord 22, 558 (2022). https://doi.org/10.1186/s12872-022-02978-y
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DOI: https://doi.org/10.1186/s12872-022-02978-y