Tee-Tau Eric Nyam1, Sher-Wei Lim2, Chung-Han Ho3, Jen-Chieh Liao1, Jhi-Joung Wang4, Chung-Ching Chio1, Jinn-Rung Kuo5, Che-Chuan Wang6. 1. Department of Neurosurgery, Chi-Mei Medical Center, Tainan, Taiwan. 2. Department of Neurosurgery, Chi-Mei Medical Center, Chiali, Tainan, Taiwan; Department of Nursing, Min-Hwei College of Health Care Management, Tainan, Taiwan. 3. Department of Medical Research, Chi-Mei Medical Center, Tainan, Taiwan; Department of Hospital and Health Care Administration, Chia Nan University of Pharmacy and Science, Tainan, Taiwan. 4. Department of Medical Research, Chi-Mei Medical Center, Tainan, Taiwan. 5. Department of Neurosurgery, Chi-Mei Medical Center, Tainan, Taiwan; Department of Medical Research, Chi-Mei Medical Center, Tainan, Taiwan; Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan, Taiwan. Electronic address: kuojinnrung@gmail.com. 6. Department of Neurosurgery, Chi-Mei Medical Center, Tainan, Taiwan; Center for General Education, Southern Taiwan University of Science and Technology, Tainan, Taiwan.
Abstract
BACKGROUND: Patients with end-stage renal disease (ESRD) are at an increased risk of surgical mortality. We aimed to investigate the factors associated with in-hospital mortality in patients with ESRD who underwent spinal surgery, which remains to be determined. MATERIAL AND METHODS: An age- and sex-matched cohort study was conducted using the Taiwan Longitudinal Health Insurance Database between January 2000 and December 2012. Kaplan-Meier curves were plotted with log-rank test to compare the differences between these 2 groups. The Cox proportional hazard model was used to estimate the hazard ratio of in-hospital mortality adjusted with potential confounding. RESULTS: In total, 4109 participants with pre-existing ESRD and 8218 patients without ESRD were included. The in-hospital mortality in ESRD (10.17%) was greater than without ESRD (1.39%). Spinal surgery patients with pre-existing ESRD had a 6.78-fold increase in-hospital mortality risk compared with those without ESRD. Spinal surgery patients with ESRD of any age, male or female, and comorbidities experienced a greater incidence of hospital mortality. In patients with ESRD, operations on spinal cords and spinal canal structures had the greatest hospital mortality (14.87%) compared with spinal fusion (3.46%) or excision or destruction of intervertebral disc (3.01%). Kaplan-Meier survival curves showed that patients with ESRD experienced greater hospital mortality than patients without ESRD in all 3 spinal surgery methods (log rank P < 0.0001). CONCLUSIONS: Spinal surgery patients with ESRD have greater in-hospital mortality than patients without ESRD. Age, sex, history of comorbidities, and types of surgical methods were associated with greater in-hospital mortality among patients with ESRD.
BACKGROUND:Patients with end-stage renal disease (ESRD) are at an increased risk of surgical mortality. We aimed to investigate the factors associated with in-hospital mortality in patients with ESRD who underwent spinal surgery, which remains to be determined. MATERIAL AND METHODS: An age- and sex-matched cohort study was conducted using the Taiwan Longitudinal Health Insurance Database between January 2000 and December 2012. Kaplan-Meier curves were plotted with log-rank test to compare the differences between these 2 groups. The Cox proportional hazard model was used to estimate the hazard ratio of in-hospital mortality adjusted with potential confounding. RESULTS: In total, 4109 participants with pre-existing ESRD and 8218 patients without ESRD were included. The in-hospital mortality in ESRD (10.17%) was greater than without ESRD (1.39%). Spinal surgery patients with pre-existing ESRD had a 6.78-fold increase in-hospital mortality risk compared with those without ESRD. Spinal surgery patients with ESRD of any age, male or female, and comorbidities experienced a greater incidence of hospital mortality. In patients with ESRD, operations on spinal cords and spinal canal structures had the greatest hospital mortality (14.87%) compared with spinal fusion (3.46%) or excision or destruction of intervertebral disc (3.01%). Kaplan-Meier survival curves showed that patients with ESRD experienced greater hospital mortality than patients without ESRD in all 3 spinal surgery methods (log rank P < 0.0001). CONCLUSIONS: Spinal surgery patients with ESRD have greater in-hospital mortality than patients without ESRD. Age, sex, history of comorbidities, and types of surgical methods were associated with greater in-hospital mortality among patients with ESRD.