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Cervical Decompression Surgery for Cervical Spondylotic Myelopathy and Concomitant Hypertension: A Multicenter Prospective Cohort Study. | LitMetric

Study Design: We performed decompression surgery or conservative treatments on 135 cervical spondylotic myelopathy (CSM) patients with concomitant hypertension and did follow-up assessments up to 1 year to examine the change of blood pressure, spinal cord function, and cervical pain.

Objective: The aim of this study was to determine whether concomitant hypertension is relieved after decompression surgery, and whether it is related to the improvement of spinal cord function or cervical pain.

Summary Of Background Data: In clinical practice, we often found that some patients with CSM have concomitant hypertension. Interestingly, after CSM was treated successfully by decompression surgery, some patients' high blood pressure returned to normal range even without oral medications.

Methods: We enrolled 135 CSM patients with hypertension, 103 of whom received decompression surgery, and remaining 32 patients accepted conservative treatments. We did follow-up assessments at 3, 6, and 12 months. The primary endpoints were changes of blood pressure, and secondary endpoints were changes of modified Japanese Orthopedic Association (mJOA) score and cervical pain visual analogue scale (VAS). Spearman correlation coefficients were calculated between changes in systolic blood pressure (SBP) and mJOA scores, VAS scores.

Results: In patients with decompression surgery, the significant decrease in both SBP and diastolic blood pressure (DBP) that was seen 3 months and sustained through subsequent visit at 12 months. Paired-samples t test showed that both SBP and DBP were significantly lower than baseline blood pressure at all time points after procedure (P < 0.001). Significant correlation was found between the improvement rates of mJOA score and changes in SBP (r = -0.579, P < 0.001). But the correlation between changes in VAS score and changes in SBP was not significant (r = 0.58, P = 0.571).

Conclusion: Cervical decompression surgery could reduce concomitant high blood pressure in CSM patients, indicating a significant association between the decrease in blood pressure and the improvement of spinal cord function.

Level Of Evidence: 2.

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Source
http://dx.doi.org/10.1097/BRS.0000000000001941DOI Listing

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