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在活体肾移植手术中, 亲属活体供肾为减少移植肾的紧缺起到了重要的作用。由于国内活体供肾移植起步较晚, 目前尚无对供肾的统一评估标准, 有关适合我国国情的供肾的选择与评估及安全性等问题的研究文献也相对较少[1]。本研究对161名亲属活体肾供者的临床资料进行分析, 探讨亲属活体肾供者99Tcm-二亚乙基三胺五乙酸(99Tcm-diethylenetriamine pentaacetic acid, 99Tcm-DTPA)肾动态显像肾小球滤过率(glomerular filtration rate, GFR)与年龄变化的相关性, 以期为临床活体肾移植供者的选择及安全性评估提供参考。
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双肾GFR为(89.55±12.87)ml·min-1·(1.73m2)-1, 亲属活体肾供者不同年龄段GFR见表 1, 各组间均无显著统计学差异(F=2.09, P=0.10);以55岁为界, 老年组和中青年组GFR分别为(88.57±13.14)ml·min-1·(1.73m2)-1和(89.44±10.34)ml·min-1·(1.73 m2)-1, 两组间差异无统计学意义(F=1.31, P=0.25)。供肾者GFR与年龄相关性见图 1, 结果显示, 两者间无明显相关性(r=-0.033, P=0.69)。
年龄(岁) 例数 肾小球滤过率[ml·min1·(1.73m2)-1] 左肾 右肾 双肾 20 〜29 52 43.56±6.41 4470± 6.62 88.27± 12.29 30 〜39 44 45.15±8.42 46.70±7.28 91.85±14.51 40-49 38 44.74±6.38 44.51 ±6.71 89.25± 11.26 ≥50 27 42.82±7.50 45.42±7.09 88,24± 13.20 表 1 亲属活体肾供者不同年龄组肾小球滤过率结果比较(x±s)
供肾前, 血清肌酐为(61.64±9.12)μmol/L, 血尿素氮为(4.34±1.02)mmol/L; 供肾后, 所有供者血清肌酐和血尿素氮均于短期内恢复至正常水平。随访8个月以上, 复查血常规、肝肾功能及尿常规未见异常, 未发生严重并发症。
亲属活体肾供者肾小球滤过率与年龄的相关性及其临床意义
Correlation and clinical significance between glomerular filtration rate and age in living-related kidney donors
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摘要:
目的 探讨亲属活体肾供者肾小球滤过率(GFR)与年龄的相关性及其临床意义,为活体肾供者的选择提供客观的依据。 方法 161名亲属活体肾供者按年龄分为4组:第1组20~29岁(n=52),第2组30~39岁(n=44),第3组40~49岁(n=38),第4组≥50岁(n=27);同时以55岁为界,分为老年供肾组(> 55岁,n=24)和中青年供肾组(≤55岁,n=137)。利用99Tcm-二亚乙基三胺五乙酸肾动态显像法定量测量供肾者GFR,对比分析不同年龄组间GFR的特性。 结果 亲属活体供肾者双肾GFR为(89.55±12.87)ml·min-1·(1.73m2)-1,不同年龄组(1~4组)GFR分别为:(88.27±12.29)ml·min-1·(1.73m2)-1、(91.85±14.51)ml·min-1·(1.73m2)-1、(89.25±11.26)ml·min-1·(1.73m2)-1和(88.24±13.20)ml·min-1·(1.73m2)-1,各组间GFR差异无统计学意义(F=2.09,P= 0.10);老年供肾组与中青年供肾组GFR分别为(88.57±13.14)ml·min-1·(1.73m2)-1、(89.44±10.34)ml·min-1·(1.73m2)-1,两组间GFR差异无统计学意义(F=1.31,P=0.25)。经相关性分析,亲属供肾者GFR与年龄变化无明显相关性(r=-0.033,P=0.69)。活体肾移植后供肾者均未发生严重并发症,血清肌酐、血清尿素氮均于短期内恢复正常水平,肝肾功能均正常。 结论 亲属活体肾供者GFR与年龄变化无明显相关性,对于指导活体供体的选择有重要意义。 Abstract:Objective To quantitatively investigate the effectof age on the glomerular filtration rate (GFR)in living-related kidney donors, to analyze the clinicalvalue and the dependence ofGFR on age and toprovide an Objective basis for the selection of the living kidney donor.M ethods One hundred and sixtyone living-related kidney donorswere divided into four age groups, namely 20-29 years(n=52), 30-39 years (n=44), 40-49 years(n=38)and≥50 years(n=27).On theotherhand, the totaldonorswere divided into the groupsolder than 55 years(n=24)and younger than 55 years(n=137).To quantify GFR in all the subjects using the99Tcm-diethylenetriamine pentaacetic acid(99Tcm-DTPA)renography according to standard procedure and to evaluate the effects of age on renal function. Results The total GFR in living-related kidney donorswas calculated as(89.55±12.87)ml·min-1·(1.73m2)-1.The GFR in the first to the four age groups were(88.27±12.29)ml·min-1·(1.73m2)-1, (91.85±14.51)ml·min-1·(1.73m2)-1, (89.25±11.26)ml·min-1· (1.73m2)-1and(88.24±13.20)ml·min-1·(1.73m2)-1.The difference ofGFRwere notsignificant between the fouragegroups(F=2.09, P=0.10).The GFR in the donorsolder than 55 yearsand younger than 55 years were(88.57±13.14)ml·min-1·(1.73m2)-1and(89.44±10.34)m l·min-1·(1.73m2)-1, therewere no significant difference in GFR between the two groups(F=1.31, P=0.25).When relating GFR to age in all the livingrelated kidneydonors, there was nosignificant correlation(r=-0.033, P=0.69).No serious complications occurred after living kidney transplantation, serum creatinine values and blood urea nitrogen recovered to the normal levels in a shortperiod, hepatic and renal functionswere normal. Conclusion This study indicated that the GFR valueswere not correlated with the change of age in living-related kidney donors, and the Results were helpful for the selection of living donors. -
Key words:
- Kidney transplantation /
- Glomerular filtration rate /
- Livingdonors /
- Nuclearfamily
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表 1 亲属活体肾供者不同年龄组肾小球滤过率结果比较(x±s)
年龄(岁) 例数 肾小球滤过率[ml·min1·(1.73m2)-1] 左肾 右肾 双肾 20 〜29 52 43.56±6.41 4470± 6.62 88.27± 12.29 30 〜39 44 45.15±8.42 46.70±7.28 91.85±14.51 40-49 38 44.74±6.38 44.51 ±6.71 89.25± 11.26 ≥50 27 42.82±7.50 45.42±7.09 88,24± 13.20 -
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