Impact of Renal Survival on the Course and Outcome of Systemic Lupus Erythematosus Patients Treated With Chronic Peritoneal Dialysis

Authors

  • Chih-Chia Liang,

    1. Department of Internal Medicine, Division of Nephrology, China Medical University Hospital, Taichung,
    2. Department of Nephrology, Chang Gung Memorial Hospital, Taipei, and
    3. College of Medicine, Chang Gung University, Taoyuan, Taiwan
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  • Chiu-Ching Huang,

    1. Department of Internal Medicine, Division of Nephrology, China Medical University Hospital, Taichung,
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  • I-Kuan Wang,

    1. Department of Internal Medicine, Division of Nephrology, China Medical University Hospital, Taichung,
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  • Chiz-Tzung Chang,

    1. Department of Nephrology, Chang Gung Memorial Hospital, Taipei, and
    2. College of Medicine, Chang Gung University, Taoyuan, Taiwan
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  • Kuan-Hsing Chen,

    1. Department of Nephrology, Chang Gung Memorial Hospital, Taipei, and
    2. College of Medicine, Chang Gung University, Taoyuan, Taiwan
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  • Cheng-Hao Weng,

    1. Department of Nephrology, Chang Gung Memorial Hospital, Taipei, and
    2. College of Medicine, Chang Gung University, Taoyuan, Taiwan
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  • Ja-Liang Lin,

    1. Department of Nephrology, Chang Gung Memorial Hospital, Taipei, and
    2. College of Medicine, Chang Gung University, Taoyuan, Taiwan
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  • Cheng-Chieh Hung,

    1. Department of Nephrology, Chang Gung Memorial Hospital, Taipei, and
    2. College of Medicine, Chang Gung University, Taoyuan, Taiwan
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  • Chih-Wei Yang,

    1. Department of Nephrology, Chang Gung Memorial Hospital, Taipei, and
    2. College of Medicine, Chang Gung University, Taoyuan, Taiwan
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  • Tzung-Hai Yen

    Corresponding author
    1. Department of Nephrology, Chang Gung Memorial Hospital, Taipei, and
    2. College of Medicine, Chang Gung University, Taoyuan, Taiwan
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  • Presented in part at the Annual Meeting of the Taiwan Society of Nephrology held 8–9 December 2007, in Taipei, Taiwan.

Dr Tzung-Hai Yen, Department of Nephrology, Chang Gung Memorial Hospital, 199 Tung Hwa North Road, Taipei 105, Taiwan. Email: m19570@adm.cgmh.org.tw

Abstract

This longitudinal study investigated whether renal survival can affect the course and outcome of systemic lupus erythematosus (SLE) patients treated with chronic peritoneal dialysis (PD). Thirty-five SLE patients, out of 1115 end-stage renal disease (ESRD) patients treated with chronic PD, were seen between 1990 and 2007 at the Chang Gung Memorial Hospital. Patients were followed up for a mean of 38.8 ± 22.9 months. There were no significant differences between patients with short renal survival (<3 years) and long renal survival (>3 years) for the various demographic variables such as age, sex, PD duration, immunosuppressive drug administration, or exchange system (P > 0.05). Interestingly, before PD, patients with short renal survival had lower serum complement levels than patients with long renal survival (C3, 40.2 ± 14.4 vs 76.3 ± 18.5 mg/dL, P < 0.001; and C4, 14.8 ± 4.7 vs 22.4 ± 8.1 mg/dL, P < 0.05). However, the differences in complement levels between the groups disappeared after PD (C3, 76.5 ± 27.3 vs 84.2 ± 27.8 mg/dL; and C4, 26.7 ± 11.3 vs 22.6 ± 10.8 mg/dL, both P > 0.05). Patients with short renal survival were more likely to have a high peritoneal solute transporter rate (PSTR) than their long renal survival counterparts (χ2-test, P = 0.02, and AUROC = 0.744 and P = 0.040); however, there were no significant differences for other variables such as cardiothoracic ratio (CTR), Kt/V, residual renal function, exit site infection, and peritonitis (P > 0.05). Finally, Kaplan–Meier analysis revealed that the two groups did not differ in patient and technical survival (P > 0.05). Therefore it was concluded that renal survival might be associated with PSTR, but not with patient and technical survival in SLE patients treated with PD.

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