目的:通过比较MDRD法(modification of diet in renal disease equation)估算肾小球滤过率(glomerular filtration rate,GFR)与核素测量清除率,评价MDRD法反映不同慢性肾脏病肾功能的准确性。方法:选择370例行99m Tc-DTPA肾动态...目的:通过比较MDRD法(modification of diet in renal disease equation)估算肾小球滤过率(glomerular filtration rate,GFR)与核素测量清除率,评价MDRD法反映不同慢性肾脏病肾功能的准确性。方法:选择370例行99m Tc-DTPA肾动态显像检查患者,其测得的GFR计为rGFR,MDRD法估计肾小球滤过率为eGFR2,比较分析eGFR2与rGFR的相关性。结果:(1)eGFR2和rGFR显著相关(r=0.738,P〈0.001)。(2)急性肾衰竭患者,eGFR2明显低于rGFR(P〈0.001)。(3)在CKD 3~5期患者,eGFR2和rGFR有显著相关性(r=0.673,P〈0.001)。根据患者基础疾病进行分组:原发性肾病组,eGFR2和rGFR显著相关(r=0.833,P〈0.001);慢性肾病合并高血压病组,eGFR2和rGFR显著相关(r=0.700,P〈0.001);风湿病继发肾脏损害组,eGFR2和rGFR显著相关(r=0.638,P〈0.001);糖尿病肾病或糖尿病合并肾脏疾病组,eGFR2明显低于rGFR(P〈0.001);慢性肾病合并感染组,eGFR2明显低于rGFR(P〈0.001);继发于其他慢性病组,eGFR2和rGFR显著相关(r=0.725,P〈0.001)。结论:MDRD法估测GFR能准确反映肾脏功能。在急性肾衰竭、糖尿病肾病或糖尿病合并肾脏疾病及慢性肾病合并感染患者中,MDRD评估的GFR明显低于核素测量的肾脏清除率,需行~(99mTc-DTPA肾动态显像准确评估肾功能。展开更多
Background: Purpose of our study was to find out correlation between estimated Glomerular Filtration Rate (GFR) by Modification of Diet in Renal Disease (MDRD) formula and Glomerular Filtration Rate by Cockcroft-Gault...Background: Purpose of our study was to find out correlation between estimated Glomerular Filtration Rate (GFR) by Modification of Diet in Renal Disease (MDRD) formula and Glomerular Filtration Rate by Cockcroft-Gault equations, in patients with chronic kidney disease (CKD), and to see whether they can be used interchangeably. Methods: We conducted a cross section study of 70 patients presented to the nephrology clinic over a period of one year. We compared the Glomerular Filtration Rate by these two formulas in five stages of Chronic Kidney Disease. Abbreviated 4 variable Modification of Diet in Renal Disease formula was used.Results: Age range was 15 - 79 years;Male 49%, Female 51%. The correlation (r) between eGFR by MDRD and eGFR by Cockcroft-Gault equation for CKD stages 1 to 5 was 0.64;0.31;0.32;0.67;and 0.45 respectively. The correlation (r) between creatinine clearance by 24 hour urine collection and MDRD formula was 0.84 (P: 0.001). The correlation (r) between creatinine clearance by 24 hour urine collection Cockcroft-Gault equation was 0.79 (P: 0.001). Conclusion: We conclude that Cockcroft-Gault equation correlates best with MDRD formula at CKD stages 4 and one. Cockcroft-Gault equation underestimated eGFR in stages 1, 2 and 3 of chronic Kidney Disease.展开更多
文摘Background: Purpose of our study was to find out correlation between estimated Glomerular Filtration Rate (GFR) by Modification of Diet in Renal Disease (MDRD) formula and Glomerular Filtration Rate by Cockcroft-Gault equations, in patients with chronic kidney disease (CKD), and to see whether they can be used interchangeably. Methods: We conducted a cross section study of 70 patients presented to the nephrology clinic over a period of one year. We compared the Glomerular Filtration Rate by these two formulas in five stages of Chronic Kidney Disease. Abbreviated 4 variable Modification of Diet in Renal Disease formula was used.Results: Age range was 15 - 79 years;Male 49%, Female 51%. The correlation (r) between eGFR by MDRD and eGFR by Cockcroft-Gault equation for CKD stages 1 to 5 was 0.64;0.31;0.32;0.67;and 0.45 respectively. The correlation (r) between creatinine clearance by 24 hour urine collection and MDRD formula was 0.84 (P: 0.001). The correlation (r) between creatinine clearance by 24 hour urine collection Cockcroft-Gault equation was 0.79 (P: 0.001). Conclusion: We conclude that Cockcroft-Gault equation correlates best with MDRD formula at CKD stages 4 and one. Cockcroft-Gault equation underestimated eGFR in stages 1, 2 and 3 of chronic Kidney Disease.