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Chinese Journal of Blood Purification

    12 February 2015, Volume 14 Issue 02 Previous Issue    Next Issue
    Application of coupled plasma filtration adsorption in patients with severe sepsis
    2015, 14 (02):  0-0. 
    Abstract ( 248 )   HTML ( 7 )  
    【Abstract】 Objective:By comparing the treatment effectiveness of coupled plasma filtration adsorption (CPFA) and high volume hemofiltration(HVHF) in patients with severe sepsis,to investigate the advantages of CPFA.Methodology:Thirty-five patients with severe sepsis were randomly divided into CPFA group(n=18) and HVHF group(n=17).The patients received CPFA or HVHF on the basis of routine therapy.Changes of the body temperature,heart rate(HR),mean arterial pressure(MAP),the dose of dopamine,the oxygenation index(PaO2/FiO2),blood routine,biochemical parameters of liver and kidney function,the electrolytes,blood lactic acid,immune globulin,complement,APACHEⅡ score,TNF-α,IL-10,HMGB-1,CRP were compared between the 2 groups before and after the treatment for 10 hours.The safety of the two kinds of treatment were simultaneously evaluated.Results:After the two therapies,the body temperature,HR,serum creatinine(Scr),BUN,blood lactic acid,the dose of dopamine,APACHEⅡ score were all significantly decreasad,the MAP and PaO2/FiO2 were significantly increased,electrolytes and acid-base balance were well maintained,there were no statistical differences between the 2 groups(P>0.05).After the two kinds of treatment,no visible influences were found in the 2 groups in the levels of white blood cell count,hemoglobin count,platelet count,alanine transaminase,aspartate aminotransferase,bilirubin,serum albumin,immune globulin,complement(P>0.05).After the two therapies,the levels of TNF-α,IL-10,HMGB-1,CRP were all significantly decreased(P<0.05),however,these changes were more evident in CPFA group than in HVHF group(P<0.05).The two therapies were safe,and no therapy related adverse reactions such as haemorrhage,hypersensitiveness or embolism were noted during the two therapies.Conclusion:Although both CPFA and HVHF can safely and effectively adjust the internal environment of patients with severe sepsis,CPFA has better abilities in lowering levels of inflammation factors.
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      Clinical characteristics and outcomes of relapse and repeat peritonitis related to peritoneal dialysis
    2015, 14 (02):  65-69.  doi: 10.3969/j.issn.1671-4091.2015.02.00
    Abstract ( 476 )   HTML ( 0 )   PDF (388KB) ( 560 )  
     Methods A total of 432 episodes of peritonitis between Jan. 2008 and Apr. 2014 were prospectively analyzed. According to the characteristics of the second-episode peritonitis, the episodes were divided into relapse/repeat group and control group. Baseline clinical characteristics, pathogenic bacteria and outcomes were compared between the two groups. Results Most relapse/repeat peritonitis were caused by coagulase negative staphylococcus species especially by epidermis staphylococcus, accounting for 66.7% episodes in relapse/repeat group but for 29.5% episodes in control group (P <0.001). Analyses of the short-term and long-term outcomes showed that the risk for developing subsequent peritonitis was higher in relapse/repeat group than in control group (20.8% vs. 1.7 %, P=0.001 for short-term outcome; 37.5% vs. 15.3 %, P=0.008 for long-term outcome), but the mortality rate, the ratio of patients changed to hemodialysis, and the ratio of patients remaining on peritoneal dialysis were similar between the two groups.  Conclusions Coagulase negative staphylococcus especially staphylococcus epidermidis was the most important pathogen in relapse/repeated peritonitis. More attention should be paid to the relapse/repeat peritonitis patients, who were at the high risk for developing subsequent peritonitis.
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    The relationship between serum B-type natriuretic peptide and oxidative stress in patients on peritoneal dialysis
    2015, 14 (02):  70-74.  doi: 10.3969/j.issn.1671-4091.2015.02.00
    Abstract ( 182 )   HTML ( 1 )   PDF (380KB) ( 180 )  
    【Abstract】 Objective To explore the relationship between serum B-type natriuretic peptide (BNP) level and oxidative stress in patients on peritoneal dialysis. Methods A total of 81 patients on continuous ambulatory peritoneal dialysis (CAPD) patients and 12 healthy controls were enrolled in this study. Serum BNP and oxidative stress biomarkers including advanced oxidation protein product (AOPP), superoxide dismutase (SOD), maleic dialdehyde (MDA) were measured. Patients were divided by BNP level into 3 groups: group A (BNP<128.63 pg/ml, group B (BNP 128.63~211.65 pg/ml), and group C (BNP >211.65 pg/ml). The relationship between serum BNP and oxidative stress and clinical indicators were explored. Results Serum BNP, AOPP and MDA levels were significantly higher in peritoneal dialysis patients than in healthy controls, but serum SOD level was significantly lower in peritoneal dialysis patients than in healthy controls. Serum AOPP was significantly higher in groups B and C than in group A, and was significantly higher in group C than in group B. Serum SOD was significantly lower in group B than in group A, was significantly higher in group C than in group B, and had no statistical difference between group A and group C (P>0.05). Serum MDA was statistically indifferent among the three groups (P>0.05). AOPP and MDA were positively correlated with BNP, but SOD was negatively correlated with BNP in CAPD patients. Conclusions Volume overload was closely related to the oxidative stress in patients on peritoneal dialysis, and the two related factors may contribute to the occurrence of cardiovascular events.
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    Clinical changes of CAPD-related peritonitis in a period of 3 years in a single peritoneal dialysis center
    2015, 14 (02):  75-78.  doi: 10.3969/j.issn.1671-4091.2015.02.00
    Abstract ( 176 )   HTML ( 0 )   PDF (355KB) ( 251 )  
    【Abstract】 Objective To investigate the clinical changes of CAPD-related peritonitis from 2011 to 2013 in a single peritoneal dialysis center in order to improve the preventive measures for the peritonitis. Methods Continuous quality improvement (CQI) method was used to analyze the demographic information, incidence, prognosis, pathogenic bacteria, cause of the peritonitis, and frequency of patient training in the CAPD-related peritonitis patients during the period from 2011 to 2013. Results The CAPD-related peritonitis rate in 2011, 2012 and 2013 was one episode/48.8 patient-months, one episode/91.8 patient-month, and one episode/27.9 patient-month (P<0.001), respectively, demonstrating a “V” profile of the incidence curve. The V-curve changes were also present in the incidences of Gram-positive cocci (P=0.03), and Gram-positive cocci not including enterogenic bacteria (P=0.04). The incidence of enterogenic peritonitis increased gradually in 2011 to 2013 (P =0.05). In the patients with long-term peritoneal dialysis, the ratio of older patients (> 65 years old) increased in 2013 (P=0.01). The rates of annual patient re-training and over-all patient training in older patients were lower in 2012 and 2013 than in 2011 (P<0.001). Conclusion The increase of CAPD-related peritonitis in 2013 in this peritoneal dialysis center probably resulted from the increase of older patients (>65 years of age) in long-term peritoneal dialysis patients, insufficient education for the prevention of enterogenic peritonitis, and the less frequency of annual re-training for the prevention of CAPD-related peritonitis.
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    Clinical study on the modified catheterization method for peritoneal dialysis
    2015, 14 (02):  79-81.  doi: 10.3969/j.issn.1671-4091.2015.02.00
    Abstract ( 192 )   HTML ( 0 )   PDF (393KB) ( 499 )  
    【Abstract】Objective To observe the improved peritoneal dialysis (PD) catheter implantation technique on PD catheter dysfunction. Method Patients surviving at least 4 weeks after operative catheter insertion between November 2011 and November 2013 in our center were included in this study. The operation was performed by our physicians using swan-neck or straight double-cuffed Tenckhoff catheter. The implantation technique was modified as follows: (1) catheters were placed at 7-9.0cm upper the symphysis pubis and 1-2.0cm to the left or right side; (2) catheters were flushed with heparin to make it heparinization before placement; and (3) hollow sensation without resistance existed during the catheter placement utilizing a guide-wire. Results Of the 133 PD patients enrolled in the study, 82 were females, and 51 were males. The mean age was 49.2±14.6 years and the median follow-up vintage was 11.0 (6.0~16.5) months. The primary diseases included chronic glomerulonephritis (n=87), diabetic nephropathy (n=21), and others (n=25). Swan-neck (n=131) or straight (n=2) double-cuffed Tenckhoff catheters were used. During the follow-up period, catheter migration was found in one case, and was successfully relieved by conservative treatment including flushing, abdominal massage, laxatives, and ambulation; poor drainage of the tubes were present in 5 cases using swan neck Tenckhoff catheters, and two of them were blocked by blood clots that were cleared by use of heparin saline and urokinase; tube wrapped by omentum was found in one case after the operation and CAPD for 6 months, and regained patency after operation; one case had poor drainage 35 days after the insertion, the location of the tube was adequate by X-ray examination, the problem remained after conservative treatment for two weeks, and the patient was then changed to hemodialysis. The one year catheter survival was 98%. Conclusion The incidence of catheter dysfunctional problems became lower in our PD center after the application of the modified PD catheter implantation technique.
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    The improved culture method to increase the positive rate of bacteria in peritoneal dialysis fluid
    2015, 14 (02):  82-84.  doi: 10.3969/j.issn.1671-4091.2015.02.00
    Abstract ( 178 )   HTML ( 0 )   PDF (333KB) ( 309 )  
    【Abstract】 Objective To explore the strategy to increase the bacteria discovery rate in peritoneal dialysis fluid in a PD center. Methods A total of 466 peritonitis cases in the CAPD patients in the period of Jan. 2007 to Apr. 2014 were analyzed. Bacterial culture for dialysis fluid was performed using the traditional method for the CAPD patients before Jun. 2010 (original group), and using the method for blood culture for the CAPD patients in the period of Jun. 2010 to Apr. 2014 (improvement group). Antibiotic treatment, positive rate of bacteria, incidence of peritonitis, and causative bacteria were compared between the two groups. Results The ratio of antibiotic treatment before dialysis fluid culture was lower in improvement group than in original group (7.76% vs. 21.36%, P<0.01). The positive rate of bacteria in peritoneal dialysis fluid was 81.5% in improvement group and was 65.8% in original group (P<0.01). Conclusion The use of blood culture medium for the culture of dialysis fluid increased the positive rate of bacterial discovery in dialysis fluid. The use of antibiotics before bacterial culture for dialysis fluid profoundly affected the positive rate of bacteria in dialysis fluid.
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    Study on the correlations among uncertainty in illness, coping style and emotion in young and middle-aged patients undergoing peritoneal dialysis
    2015, 14 (02):  85-88.  doi: 10.3969/j.issn.1671-4091.2015.02.00
    Abstract ( 179 )   HTML ( 0 )   PDF (367KB) ( 190 )  
    【Abstract】 Objective To explore the relationship between uncertainty in illness, coping style and emotion in young and middle-aged patients undergoing peritoneal dialysis (PD). Methods Demographic questionnaire, Mishel Uncertainty in Illness Scale-Adult (MUIS-A), Medical Coping Modes Questionnaire (MCMQ) and Profile Of Mood State-Short Form (POMS-SF) were used to analyze the correlations among illness uncertainty, coping style and emotion in 75 young and middle-aged PD patients. Results The mean score of uncertainty in illness of young and middle-aged PD patients was in the moderate level. The confrontation coping, avoidance coping and resignation coping affected the illness uncertainty of the patients (R=0.461, P<0.01). The total mood, anger-hostility and confusion-bewilderment affected the illness uncertainty of the patients (R=0.939, P<0.01). Conclusions There are significant correlations among uncertainty in illness, coping style and emotion in young and middle-aged PD patients. Medical personnel should pay attention to design care measures individually, instruct the patients to manage emotion and adopt effective coping style to decrease their uncertainty in illness and improve their quality of life.
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    Long-term clinical effects of combined therapy with peritoneal dialysis and hemodialysis: report of 3 cases and review of the literature
    2015, 14 (02):  89-92.  doi: 10.3969/j.issn.1671-4091.2015.02.00
    Abstract ( 198 )   HTML ( 0 )   PDF (338KB) ( 367 )  
    【Abstract】 Objective To evaluate the long-term clinical effect of combined therapy with peritoneal dialysis and hemodialysis (PHD) in the treatment of patients with end-stage renal disease (ESRD). Methods We summarized the effect of PHD in 3 ESRD cases and reviewed the related literature. Results The 3 male ESRD cases were 34-54 years old, and were undergone PHD for 1-4 years. The primary disease was chronic glomerulonephritis in 2 cases, diabetic nephropathy in one case. After PHD treatment, clinical status improved. In case 1, weekly urea Kt/V increased from 1.46 to 1.90, weekly creatinine clearance (WCC) from 36.52 to 60.72 L/1.73 m2, plasma albumin from 3.30 mg/dl to 3.60 mg/dl, and hemoglobin from 8.1 g/dl to 11.0 g/dl. Echocardiography showed the improvement of left ventricular hypertrophy. In case 2, weekly urea Kt/V increased from 1.43 to 1.81, WCC from 35.34 to 55.79 L/1.73 m2, plasma albumin from 3.50 mg/dl to 3.92 mg/dl, and hemoglobin from 9.6 g/dl to 11.6 g/dl. In case 3, weekly urea Kt/V increased from 1.55 to 1.82, WCC from 46.0 to 56.53 L/1.73 m2, plasma albumin from 3.50 mg/dl to 4.02 mg/dl, and hemoglobin from 7.8 g/dl to 9.2 g/dl. Echocardiography showed the improvement of left ventricular hypertrophy. Conclusion PHD can effectively improve the clinical symptoms and dialysis adequacy in ESRD patients. It may be used as a supplementary alternative of renal replacement therapy in clinical practice.
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    The long-term effect of 1.25 mmol/l calcium in dialysate on mineral metabolism in maintenance hemodialysis patients
    2015, 14 (02):  93-96.  doi: 10.3969/j.issn.1671-4091.2015.02.00
    Abstract ( 253 )   HTML ( 0 )   PDF (421KB) ( 295 )  
    【Abstract】 Objective To observe the long-term effect of 1.25 mmol/l calcium in dialysate (LCaD) on mineral metabolism in maintenance hemodialysis (MHD) patients. Methods A total of 50 chronic renal failure patients with MHD for more than 3 months were randomly recruited from our hospital. The effects of LCaD on serum calcium, phosphorus, and intact parathyroid hormone (iPTH) were observed after the treatment for 3, 6, 9 months. Results After the use of LCaD, we found that serum calcium level dramatically declined in the patients with different serum calcium levels and different serum iPTH levels (P<0.05). Serum phosphorus was unchanged after the treatment of LCaD for 3 and 6 months, but decreased after the treatment for 9 months (P<0.05). Serum iPTH was unchanged after the treatment for 3 months, and increased significantly after the treatment for 6 and 9 months (P<0.05). Conclusion Low calcium in dialysate can decrease the serum calcium level in some of MHD patients, and can effectively control the serum phosphorus. However, low calcium in dialysate will increase the risk of secondary hyperparathyroidism. Therefore, calcium and active vitamin D preparations should be supplemented at the same time.
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    The efficacy of short-term high frequency hemoperfusion combined with hemodialysis on skin pruritus in regular hemodialysis patients
    2015, 14 (02):  97-99.  doi: 10.3969/j.issn.1671-4091.2015.02.00
    Abstract ( 204 )   HTML ( 1 )   PDF (359KB) ( 336 )  
    【Abstract】Objective To investigate the effects of short-term high frequency hemoperfusion on skin pruritus in regular hemodialysis patients. Methods Fifteen regular hemodialysis patients were treated with hemoperfusion combined with hemodialysis (HP+HD), three times a week for 2 weeks. Before and after the treatment, symptoms and scores of skin pruritus were evaluated, and biochemical parameters were collected. Results After the first HP+HD treatment the remission rate of skin pruritus was 66%, and after the last treatment the remission rate was 100%. After the first treatment, skin pruritus score (9.5±6.2) was lower than that before the first treatment (24.9±6.9; P0.05). We did not found any adverse effect. Conclusions Short-term high frequency hemoperfusion combined with hemodialysis can effectively and quickly relieve skin pruritus and improve quality of life in regular hemodialysis patients.
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    Clinical observation of peritoneal dialysis in treating severe pancreatitis
    2015, 14 (02):  100-104.  doi: 10.3969/j.issn.1671-4091.2015.02.00
    Abstract ( 173 )   HTML ( 1 )   PDF (424KB) ( 270 )  
    【Abstract】 Objectives To evaluate the efficacy of peritoneal dialysis (PD) in the treatment of severe acute pancreatitis (SAP). Methods Thirty-six SAP patients treated in our hospital from January 2004 to December 2013 were randomly divided into two groups, PD group (n=21) in which patients were treated with PD, and non-PD group (control group, n=15) in which patients were treated with drugs or surgery. The relief time of abdominal pain and abdominal distension, the time of respiration without mechanical ventilation, the recovery time of serum amylase and urine amylase levels, scores of Balthazar CT and APACHE Ⅱ, changes of inflammatory cytokines including IL-6, PCT and CRP after treatment, length and expense of hospitalization, and recovery rate were compared between the 2 groups. Results In PD group, the relief time of abdominal pain and abdominal distension, the time of independent respiration without mechanical ventilation, and the recovery time of serum amylase and urine amylase were significantly lower than those in control group (16.08±4.32 days vs. 30.16±14.33 days, t=4.261, P=0.0002 for the relief time of abdominal pain and abdominal distension; 8.50±2.65 days vs. 18.66±6.56 days, t=6.429, P=0.0001, for the time of independent respiration without mechanical ventilation; 13.5±5.93 days vs. 25.68±11.36 days, t=4.193, P=0.0002, for serum amylase; 13.92±6.96 days vs. 28.77±12.67 days, t=4.516, P= 0.0001, for urine amylase); Balthazar CT scores after the treatment for 7 and 14 days were significantly lower than those in control group (5.33±0.67 vs. 7.95±0.53, t= 12.577, P= 0.0002, after treatment for 7 days; 2.08±0.16 vs. 7.19±0.32, t=63.188, P=0.0001, after the treatment for 14 days); APACHE Ⅱ scores after the treatment for 1, 3, 5, and 7 days were also significantly lower than those in control group (8.98±2.95 vs. 13.05±3.56, t=3.744, P= 0.0007, after the treatment for one day; 7.06±1.84 vs. 12.44±3.06, t=6.5813, P= 0.0001, after the treatment for 3 days; 5.09±1.06 vs. 10.98±2.73, t= 9.0215, P= 0.0001, after the treatment for 5 days; 3.16±0.74 vs. 9.18±1.96, t=12.9054, P= 0.0001, after the treatment for 7 days); Levels of IL-6, PCT, and CRP after the treatment for 1, 3 and 7 days were significantly lower than those in control group (122.02±89.86 ng/L vs. 286.47±238.62 ng/L, t=2.897, P= 0.0065, for IL-6 after the treatment for one day; 109.86±78.05 ng/L vs. 254.83±210.26 ng/L, t=2.905, P=0.0064, for IL-6 after 3 days; 44.24±18.43 ng/L vs. 186.54±145.27 ng/L, t=4.464, P= 0.0001, for IL-6 after 7 days; 11.00±6.22 ng/L vs. 18.86±12.19ng/L, t=2.5376, P=0.0159, for PCT after the treatment for one day; 5.56±3.12 ng/L vs. 15.89±9.88 ng/L, t=4.5092, P=0.0001, for PCT after the treatment for 3 days; 1.65±0.93 ng/Lvs. 10.39±5.77 ng/L, t=6.8565, P= 0.0001, for PCT after the treatment for 7 days; 96.39±44.13 ng/L vs. 120.14±44.53 ng/L, t=2.068, P=0.022, for CRP after the treatment for one day; 82.14±38.98 ng/L vs. 108.82±41.71 ng/L, t=2.626, P=0.0374, for CRP after the treatment for 3 days; 46.90±22.24 ng/L vs. 89.45±40.58 ng/L, t=4.0433, P= 0.0003, for CRP after the treatment for 7 days); the length and expenses of hospitalization were significantly less than those in the control group (33.42±12.27 days vs. 58.16±14.38 days, t=5.5526, P=0.0001, for hospitalization days; 13.71±4.93 x 104 yuan vs. 28.54±15.26 x 104 yuan, t=4.1791, P=0.0002, for expenses during hospitalization); mortality and complication rates were significantly lower than those in control group (14.29% vs. 40.00%, X2=6.722, P=0.0242, for mortality rate; 0 vs. 46.67%, X2=6.03, P=0.030, for complication rate). Conclusion PD was proven to be effective and valuable in the treatment of SAP. PD lowered the mortality and complication rate as well as the time and expenses of hospitalization, and importantly, increased the cure rate.
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    Effect of high volume hemofiltration on the expression of caspase-12, the protein marker of endoplasmic reticulum stress, in dogs with multiple organ dysfunction syndrome
    2015, 14 (02):  105-109. 
    Abstract ( 216 )   HTML ( 0 )   PDF (568KB) ( 216 )  
    AbstractObjective To investigate the effect of high volume hemofiltration (HVHF) on the gene expression of endoplasmic reticulum stress markers in multiple organ dysfunction syndrome (MODS) dogs.  Methods MODS model of Beagle dogs were established by a “two-hit” injury and then randomly divided into two groups, HVHF group (n=6) and MODS group (n=6). Blood samples were drawn in the two groups at preoperative (T1) and after injection of endotoxin for 0h (T2), 6h (T3), 12h (T4) and 24 h (T5). Quantitative real-time PCR was used to measure caspase-12 mRNA levels in liver, kidney and lung. In addition, dog serum samples were applied to human umbilical venous endothelial cells (HUVECs) to induce endoplasmic reticulum stress, and the expression of caspase-12 and apoptosis in HUVECs were then assayed before and after down-regulation of caspase-12 expression by siRNA interference. Results Caspase-12 mRNA levels in kidney and lung were lower in HVHF group than in MODS group (P0.05), but the mRNA levels in liver was similar between the two groups (P>0.05). In HUVECs before siRNA interference, caspase-12 mRNA, caspase-12 protein and apoptosis decrease more by T2-T5 samples from HVHF group than by those from MODS group (P0.01). In HUVECs induced with serum samples from HVHF group and MODS group, caspase-12 mRNA, caspase-12 protein and apoptosis decrease more in HUVECs after the siRNA interference than in those before the siRNA interference (P0.01). Conclusion The endoplasmic reticulum stress pathway plays an important role in the evolution processes of MODS. RNA interference may become a new therapeutic modality for the treatment of MODS.
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    Survey of the acute comorbidities and nursing strategies in peritoneal dialysis patients
    2015, 14 (02):  120-124.  doi: 10.3969/j.issn.1671-4091.2015.02.00
    Abstract ( 175 )   HTML ( 0 )   PDF (430KB) ( 214 )  
    【Abstract】 Objective We aimed to investigate the incidence of acute comorbidities and hospitalization in peritoneal dialysis patients, and to analyze the clinical characteristics of the patients with comorbidities for the improvement of nursing strategies. Methods All acute comorbidities and hospitalization in long-term followed up PD patients in 2012 were recorded. Biochemical data within 1 month prior to the presence of acute comorbidities were collected. Comorbidities were divided into four groups, infection comorbidities, cardiovascular or cerebrovascular comorbidities, catheter-related non-infection comorbidities, and other comorbidities. The percentage of comorbidities and hospitalization in the four groups, and the clinical characteristics of infection comorbidities and cardiovascular or cerebrovascular comorbidities were compared. Results A total of 246 episodes of acute comorbidities occurred in 182 PD patients, with the mean age of 58.25±13.64 years, the median dialysis duration of 39.38 (20.68~58.06) months, and diabetes rate of 47.3% patients. The highest percentage of acute comorbidity was infection (59.3%), followed by cardiovascular or cerebrovascular comorbidities (29.3%), catheter-related infection (2.0%), and other comorbidities (9.3%). The outcomes of these patients included remaining in peritoneal dialysis (75.61%), transferred to hemodialysis (6.50%), and dead (17.89%). The hospitalization rate was 18.70% with the mean duration of 14.89±27.20 days and mean medical expenses of 20708.61±19078.35 yuan, in which 2275.86 ±4045.47 yuan were paid by patients themselves. Patients with cardiovascular or cerebrovascular comorbidities had higher blood phosphorus level than those with infection comorbidities (1.76± 0.54 mmol/L vs. 1.52± 0.44 mmol/L, P =0.02). Conclusions PD patients are prone to have acute comorbidities with higher hospitalization rate, high medical expenses and poor outcome. Infections as the primary comorbidities should be paid continuous attention. More concerns on hyperphosphatemia are critical to prevent cardiovascular or cerebrovascular comorbidities.
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