体外红光照射对血液透析患者血磷水平影响的临床研究

目的观察体外红光照射联合血液透析对血液透析患者血磷水平的影响。 方法18例符合入选标准的维持性血液透析患者作为研究对象，随机分为两组，治疗组12例，进行血液透析联合红光照射，对照组6例，进行血液透析联合安慰照射。体外红光照射治疗2 h/次，3次/周，共治疗4周。分别在首次照射前与末次照射后采集血液标本，标本采集时间为透析前、透析1 h、透析2 h，检测患者不同时间血磷水平。同时对两组患者使用的降磷药物及血液净化模式进行对比。对治疗组及对照组患者结果进行统计分析，根据资料分布情况分别采用卡方检验、t检验或非参数检验。 结果两组患者年龄、性别、原发疾病等基本信息差异无统计学意义。治疗组和对照组患者首次红光照射透析前血磷水平差异无统计学意义(2.16±0.47) mmol/L与(2.44±0.20 )mmol/L，P＝0.202]，红光照射治疗4周后，治疗组患者透析前血磷水平显著低于对照组(2.04±0.40) mmol/L与(2.64±0.30) mmol/L，P＝0.007]。两组患者口服降磷药、口服骨化三醇、血液透析滤过、血液灌流频率无统计学差异。 结论体外红光照射联合血液透析治疗在一定程度上有助于降低血液透析患者血磷水平。

Effect of red light irradiation on blood phosphorus level of hemodialysis patients

ObjectiveTo observe the effect of red light irradiation on blood phosphorus level of hemodialysis patients. MethodsEighteen patients with maintenance hemodialysis were selected as the subjects and randomly divided into two groups. Twelve subjects were in the treatment group, who received hemodialysis combined with red light irradiation. Six subjects were in the control group, who received hemodialysis combined with placebo irradiation. The dose of red light irradiation treatment was 2 hours/time, 3 times/week for a total of 4 weeks. Blood samples were collected before the first irradiation and after the last irradiation. The blood samples were collected before dialysis, at dialysis for 1 hour, and at dialysis for 2 hours for detecting the blood phosphorus level in the patients. The two groups were also compared in the phosphorus-reducing drugs and blood purification modes. Statistical analysis was performed with χ² test, t-test, or non-parametric test according to the distribution of data. ResultsThere was no significant difference between the two groups in the basic data including age, gender, and primary diseases. There was no significant difference in blood phosphorus level between the two groups before the first red light irradiation (2.16±0.47) mmol/L vs (2.44±0.20) mmol/L, P=0.202]. After 4 weeks of treatment with red light irradiation, the serum phosphorus level in the treatment group was significantly lower than that in the control group (2.04±0.40) mmol/L vs (2.64±0.30) mmol/L, P=0.007]. The phosphorus binder dose, calcitriol dose, hemodiafiltration frequency, and hemoperfusion frequency were not statistically different between the two groups. ConclusionThe red light irradiation combined with hemodialysis treatment might be helpful in reducing the blood phosphorus level of hemodialysis patients.