Oncotarget

Research Papers:

Comparison of the effect of spinal anesthesia and general anesthesia on 5-year tumor recurrence rates after transurethral resection of bladder tumors

Woo-Jong Choi, Seunghee Baek, Eun-Young Joo, Syn-Hae Yoon, Eunkyul Kim, Bumsik Hong, Jai-Hyun Hwang and Young-Kug Kim _

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Oncotarget. 2017; 8:87667-87674. https://doi.org/10.18632/oncotarget.21034

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Abstract

Woo-Jong Choi1,*, Seunghee Baek2,*, Eun-Young Joo1, Syn-Hae Yoon1, Eunkyul Kim1, Bumsik Hong3, Jai-Hyun Hwang1 and Young-Kug Kim1

1Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea

2Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea

3Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea

*These authors are co-first authors

Correspondence to:

Young-Kug Kim, email: [email protected]

Keywords: transurethral bladder tumor resection, tumor recurrence, spinal anesthesia, general anesthesia

Received: May 23, 2017     Accepted: August 17, 2017     Published: September 16, 2017

ABSTRACT

Non-muscle invasive bladder tumors are early-stage tumors with high recurrence rates. Transurethral resection of bladder tumor (TURB) is performed under spinal or general anesthesia; however, the effect of the two anesthetic techniques on non-muscle invasive bladder tumor recurrence is unknown. Thus, we compared their effects on tumor recurrence rates five years after TURB. Data from 876 patients who underwent TURB from 2000 to 2007 was reviewed. Patients received spinal or general anesthesia based on their choice or the clinician’s preference. Tumor recurrence five years after TURB was assessed using multivariate Cox regression model, propensity score analysis (matching and inverse probability of treatment weighting), and Kaplan–Meier method. The five-year tumor recurrence rate after TURB was 42% and 53% for spinal and general anesthesia groups, respectively (P = 0.013). Hazard ratios for tumor recurrence in the spinal anesthesia group compared to that in the general anesthesia group were 0.619 (P <0.001), 0.642 (P = 0.001), and 0.636 (P <0.001) in the Cox regression model, Cox regression model with propensity score matching, and adjusted analysis with inverse probability of treatment weighting, respectively. The five-year tumor recurrence rate was significantly lower in the spinal anesthesia group than in the general anesthesia group in both the unadjusted (P = 0.002) and adjusted Kaplan–Meier curves (P <0.001). Therefore, spinal anesthesia for non-muscle invasive bladder tumor resection was associated with a lower five-year tumor recurrence rate than general anesthesia. This finding provides useful information for an appropriate selection of anesthetic technique for TURB.


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