Correction: Exploration of surgical blood pressure management and expected motor recovery in individuals with traumatic spinal cord injury

Correction to: Spinal Cord 58:377–386

https://doi.org/10.1038/s41393-019-0370-5 published online 24 October 2019

Following publication of this article, an error was identified in the data structure for the analysis “Relationship between changes in ISNCSCI motor score versus time spent within optimal versus nonoptimal MAP range”. The published article has now been corrected, and the changes are detailed below:

(1) In the “Abstract”:

“…(F[1, 23] = 5.07, r2 = 0.181, p = 0.034). ISNCSCI motor scores increased 0.039 for each minute of exposure to the MAP range 70–94 mmHg during the operative procedure.”

was changed to:

“…(F[1, 23] = 4.65, r2 = 0.168, p = 0.042). ISNCSCI motor scores increased 0.036 for each minute of exposure to the MAP range 70–94 mmHg during the operative procedure.”

(2) In the “Methods”, under the heading “Automated filter and mean arterial pressure binning”:

“Additionally, as part of a secondary analysis, the data were divided into time spent in hypotensive (MAP < 70), normal/optimal (MAP between 70 and 94), and hypertensive (MAP > 94) states.”

was changed to:

“Additionally, as part of a secondary analysis, the data were divided into time spent in hypotensive (MAP 50–69), normal/optimal (MAP 70–94), and hypertensive (MAP 95–104) states.”

(3) In the “Results”, under the heading “Relationship between changes in ISNCSCI motor score versus time spent within optimal versus nonoptimal MAP range”:

“The beta coefficient for the linear regression modeling change in motor score versus time exposure to 70–94 mmHg MAP range was 0.039 (CI: 0.003–0.076, p = 0.034) (Fig. 2b), representing a positive association. Beta coefficients for both the hypotension (50–69 mmHg; beta: −0.025, CI: −0.074 to 0.025, p = 0.311) and the hypertension (95–104 mmHg; beta: −0.013, CI: −0.112 to 0.085, p = 0.782) MAP ranges showed a negative association but did not reach statistical significance. The intercept for the normotensive model was −0.664, representing the starting ISNCSCI motor score change before time exposure to the 70–94 mmHg MAP range. The intercepts for the hypotension and hypertension models were 11.8 and 9.99 ISNCSCI motor points, respectively.”

was changed to:

“The beta coefficient for the linear regression modeling change in motor score versus time exposure to 70–94 mmHg MAP range was 0.036 (CI: 0.001–0.071, p = 0.042) (Fig. 2b), representing a positive association. Beta coefficients for both the hypotension (50–69 mmHg; beta: −0.025, CI: −0.077 to 0.027, p = 0.322) and the hypertension (95–104 mmHg; beta: −0.039, CI: −0.301 to 0.224, p = 0.764) MAP ranges showed a negative association but did not reach statistical significance. The intercept for the normotensive model was −0.880, representing the starting ISNCSCI motor score change before time exposure to the 70–94 mmHg MAP range. The intercepts for the hypotension and hypertension models were 11.7 and 10.0 ISNCSCI motor points, respectively.”

(4) Fig. 2 has also been corrected. The original, incorrect version of Fig. 2 is displayed below:

(5) Finally, the supplementary table file has been updated to include the corrected version of table S3. The original, incorrect version is displayed below:

Table S3 Linear Regressions of ISNCSCI Motor Score vs. Minutes within each MAP range during surgery.

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Correspondence to Stephen L. McKenna.

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The original article can be found online at https://doi.org/10.1038/s41393-019-0370-5.

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Ehsanian, R., Haefeli, J., Quach, N. et al. Correction: Exploration of surgical blood pressure management and expected motor recovery in individuals with traumatic spinal cord injury. Spinal Cord 58, 943–945 (2020). https://doi.org/10.1038/s41393-020-0504-9

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