Hemoperitoneum: bloody peritoneal dialysate in ESRD patients receiving peritoneal dialysis.

Hemoperitoneum is seen in patients receiving peritoneal dialysis (PD) because the PD catheter provides a window to the peritoneum. Gynecological associated phenomena account for the majority of cases. Intra-abdominal pathology of solid organs such as the kidney, liver, and spleen as well as the gastrointestinal tract is recognized. Unique to PD patients, hemoperitoneum may be associated with the catheter itself, uremic bleeding, or peritonitis. A successful PD program requires nephrologists, PD nurses, and patients assess and manage hemoperitoneum in a systematic fashion. This paper reviews hemoperitoneum in adult PD patients.     

单中心维持性腹膜透析患者肾性贫血现况及相关因素分析

目的 评估维持性腹膜透析患者肾性贫血情况,并对影响腹膜透析患者血红蛋白的各种因素进行分析,指导临床进行干预治疗。方法 回顾性分析山东省临沂市人民医院2011年1月-2020年12月在腹膜透析中心规律随访的238例腹膜透析患者的人口学特征及临床资料,以血红蛋白(hematocrystallin, Hb)≥110 g/L为界线,分为Hb合格组(Hb≥110 g/L)和非合格组(Hb<110 g/L),比较2组性别、年龄、基础疾病、生化检查、尿素清除指数(KT/V)、腹膜平衡试验结果等因素,并分析该中心腹膜透析患者血红蛋白治疗合格率及影响因素。结果 (1)入组的所有患者的平均Hb水平(103.85±19.13) g/L,合格组108例(45.38%),非合格组130例(54.62%);(2)单因素分析示Hb水平与总KT/V(r=0.282,P<0.05)、腹膜KT/V(r=0.230,P<0.05)、超滤量(r=0.146,P<0.05)呈正相关;与体重指数(r=0.154,P<0.05)呈负相关。(3)多因素logistic回归分析表明,BMI、低白蛋白、肌酐...     

影响我国腹膜透析开展的原因分析

目的 腹膜透析具有多种优点，但是在我国大部分地区，腹膜透析的使用率很低。因此就腹膜透析在我国的发展现状及影响腹膜透析开展的原因进行调查。方法 采用自拟的调查表，调查参加全国肾脏病主任学习班的51名肾科主任对腹膜透析的看法及影响腹膜透析开展的因素。结果 所有参加调查的医院都开展了血液透析，68．6％的医院开展了腹膜透析，54．9％开展肾移植治疗。5．9％的被调查者认为腹膜透析比血液透析优越，29．4％认为腹膜透析不如血液透析优越，而多数(64．7％)则表示一种透析方式的优缺点需视患者而异。有70．6％表示对腹膜透析有信心，88％调查对象都对腹膜透析表现出兴趣。90．2％的被调查者表示将会开展腹膜透析(包括已开展者)。对于腹膜透析在透析总人数中应占的百分比，大多数(52．9％)被调查者认为是30％-50％，但事实上在多数地区(58．8％)腹膜透析在透析中所占的比例小于10％，有21．6％的地区腹膜透析所占比例为10％-20％。关于影响腹膜透析开展的原因，从高到低排列为：经济因素(51％)，医患双方认识不足(27．5％)，腹膜炎(21．7％)，腹膜透析效果不好(15．7％)，患者不接受(7．8％)，宣教随访困难(3．9％)，营养不良、腹膜透析没进公费医疗、需要满足血液透析患者数和没有人员(各占2．O％)。结论 腹膜透析治疗在我国的开展严重不足，医患双方认识不足及腹膜透析目前的价格结构是影响目前我国腹膜透析发展的主要因素。     

Physician use among the old-old. Factors affecting variability

A random sample of 189 noninstitutionalized adults aged 75 and older was used to examine the influence of personal and social characteristics of the old-old on physician use. A path analysis traced direct and indirect effects of predisposing, enabling, and need variables within Andersen's health-behavior model. Income and perceived severity of symptoms were the only two variables with direct causal effects, whereas education, gender, race, living arrangements, and number of symptoms influenced physician use indirectly. Implications of the heterogeneity of the old-old for future research in health behavior are discussed.     

Factors affecting peritoneal dialysis selection in Taiwanese patients with chronic kidney disease

LIANG C.‐H., YANG C.‐Y., LU K.‐C., CHU P., CHEN C.‐H., CHANG Y.‐S., O'BRIEN A.P., BLOOMER M. & CHOU K.‐R. (2011) Factors affecting peritoneal dialysis selection in Taiwanese patients with chronic kidney disease. International Nursing Review 58 , 463–469 Background: Taiwan has the highest incidence and prevalence of end‐stage renal disease (ESRD) in the world with 55 499 ESRD patients on long‐term dialysis. Nevertheless, 90.96% of these patients are managed on maintenance haemodialysis (HD), with only 9.03% enrolled in a peritoneal dialysis (PD) programme. Aim: The study aim was to identify the factors affecting Taiwanese patient's selection of PD in preference to HD for chronic kidney disease. Methods: A cross‐sectional research design was utilized with 130 chronic renal failure (CRF) patients purposively selected from outpatient nephrology clinics at four separate Taiwan hospitals. Logistic regression was used to identify the main factors affecting the patient's choice of dialysis type. Results: Single‐factor logistic regression found significant differences in opinion related to age, education level, occupation type, disease characteristics, lifestyle modifications, self‐care ability, know‐how of dialysis modality, security considerations and findings related to the decisions made by medical personnel (P < 0.05). Moreover, multinomial logistic regression after adjustment for interfering variables found that self‐care ability and dialysis modality know‐how were the two main factors affecting the person's selection of dialysis type. Conclusions: Self‐care ability and the person's knowledge of the different types of dialysis modality and how they function were the major determinants for selection of dialysis type in Taiwan based on the results from this study. The results indicate that the education of CRF patients about the types of dialysis available is essential to enable them to understand the benefits or limitations of both types of dialysis.     

Oral protein-energy supplements in peritoneal dialysis: a multicenter study.

BACKGROUND: Protein-energy malnutrition is prevalent in peritoneal dialysis (PD) patients and is associated with increased morbidity and mortality. OBJECTIVE: To evaluate the impact of prophylactic treatment with an oral protein-energy supplement (Protenplus; Fresenius AG, Bad Homburg, Germany) on nutritional parameters in patients starting PD. DESIGN: Prospective, multicenter, randomized study of group A patients (Protenplus, n = 35) and group B (controls, n = 30), with evaluations at baseline and at 6 and 12 months. Statistical Methods: Efficacy of factors by linear mixed model analysis for repeated measurements, chi-square, t-test, and Mann-Whitney test. OUTCOME PARAMETERS: Patient compliance, serum albumin, and other nutritional parameters. RESULTS: No significant differences were found at baseline evaluation. During follow-up, a significant number of group A patients abandoned intake of the supplement due to non-compliance (n = 7) or side effects (n = 8) (chi2 p < 0.01). Patients with lower residual renal function were less likely to comply. The mixed model in the "intention to treat" analysis showed a significant increase related to supplement intake only in total lymphocyte count in group A. The "as treated" analysis of the 29 patients who fulfilled the study (9 in group A, 20 in group B) disclosed that belonging to group A constituted an independent factor for increased lymphocyte count (p < 0.001), body weight (p < 0.03), tricipital skinfold thickness (p < 0.01), middle-arm muscle circumference (p < 0.025), lean body mass (LBM) (p < 0.002), creatinine LBM related to body surface area (p < 0.001), and creatinine generation rate (p < 0.002). However, these data may have been biased by the high rate of noncompliance in group A. CONCLUSIONS: Protenplus proved to be unsuitable as a long term, oral protein-energy supplement in PD patients due to a high rate of noncompliance and intolerance, primarily among patients with lower residual renal function. The question of whether other products, better-tolerated as nutritional supplements, could compensate for daily protein peritoneal losses in long-term PD remains open.     

Intermediate outcomes by race and ethnicity in peritoneal dialysis patients: results from the 1997 ESRD Core Indicators Project. National ESRD Core Indicators Workgroup.

BACKGROUND: Hispanics are the fastest growing minority group in the United States, and approximately 10% of all end-stage renal disease (ESRD) patients are Hispanic. Few data are available, however, regarding dialysis adequacy and anemia management in Hispanic patients receiving peritoneal dialysis in the U.S. METHODS: Data from the Health Care Financing Administration (HCFA) ESRD Core Indicators Project were used to assess racial and ethnic differences in selected intermediate outcomes for peritoneal dialysis patients. RESULTS: Of the 1219 patients for whom data were available from the 1997 sample, 9% were Hispanic, 24% were non-Hispanic blacks, and 59% were non-Hispanic whites. Hispanics were more likely to have diabetes mellitus as a cause of ESRD compared to blacks or whites, and both Hispanics and blacks were younger than white patients (both p < 0.001). Although whites had higher weekly Kt/V and creatinine clearance values compared to blacks or Hispanics (p < 0.05), blacks had been dialyzing longer (p < 0.01) and were more likely to be anuric compared to the other two groups (p < 0.001). Blacks had significantly lower mean hematocrit values (p < 0.001) and a greater proportion of patients who had a hematocrit level less than 28% (p < 0.05) compared to Hispanics or whites, despite receiving significantly larger weekly mean epoetin alfa doses (p < 0.05) and having significantly higher mean serum ferritin concentrations (p < 0.01). Multivariate logistic regression analysis revealed significant differences by race/ethnicity for experiencing a weekly Kt/V urea < 2.0 and hypertension, but not for other intermediate outcomes examined (weekly creatinine clearance < 60 L/week/1.73 m2, Hct < 30%, and serum albumin < 3.5/3.2 g/dL). CONCLUSION: Hispanics had adequacy values similar to blacks and anemia parameters similar to whites. Additional studies are needed to determine the etiologies of the differences in intermediate outcomes by racial and ethnic groupings in peritoneal dialysis patients.     

Chronic peritoneal dialysis in the elderly: a review.

During the past few decades, the pattern of end-stage renal disease has changed significantly with the emerging predominance of elderly patients. Because this heterogeneous population is characterized by a physiological decline in function of all organs, the nephrologist must contemplate the special needs of individual patients when they develop end-stage renal disease. Before the initiation of dialysis, these patients must be given detailed information to help them select the particular mode that will maximize their quality of life. According to available data, peritoneal dialysis offers some advantages for elderly patients, such as hemodynamic stability, steady-state metabolic control, good control of hypertension, independence from hospital, and avoidance of repeated vascular access. Early referral promotes the establishment of peritoneal access and minimizes the consequences of uremia, subsequent morbidity, and frequent hospitalization. Elderly patients are compliant and highly motivated to cooperate with their treatment. They have no higher modality-related complications than younger patients and their quality of life is satisfactory. Although most have comorbid conditions that interfere with self-performance of dialysis, such as impaired vision and reduced physical and mental activity, they can perform peritoneal dialysis successfully if they have a high level of family support. Patients who do not have family support may have successful peritoneal dialysis if they have access to a network of medical and social support, that is, private home nurses, rehabilitation and chronic care dialysis units, or nursing homes.     

Factors affecting lymphatic absorption in Chinese patients on continuous ambulatory peritoneal dialysis (CAPD).

The pathways and physiology of lymph absorption (LA) from the peritoneal cavity are well documented; however, much uncertainty still exists as to the various clinical and demographic factors affecting LA. We studied LA measured by the albumin instillation method, in adult Chinese CAPD patients, and showed that it was independent of age, sex, body surface area, duration of dialysis, intrinsic renal disease, use of intraperitoneal drugs (heparin/antibiotics/deferroxamine) and frequency of past bacterial peritonitis. High lymph absorbers had a relatively higher transcapillary cumulative ultrafiltration than low lymph absorbers. An enhanced LA was associated with a high initial intraperitoneal volume. Assessment of diaphragmatic strength by the decrement in vital capacity on changing from an erect to a supine position failed to distinguish patients with high and low LA.     

Inflammation in peritoneal dialysis: a Latin-American perspective.

Peritoneal dialysis (PD) patients present an extremely high mortality rate, but the mechanisms mediating the increased risk of mortality observed in this group of patients are still largely unknown, which limits the perspective of effective therapeutic strategies. The leading hypothesis that tries to explain this high mortality risk is that PD patients are exposed to a number of traditional risk factors for cardiovascular disease (CVD) already at the onset of their chronic kidney disease (CKD), since many of these risk factors are common to both CVD and CKD. Of particular importance, chronic inflammation recently emerged as an important novel risk factor related to multiple complications of CKD. There are many stimuli of the inflammatory response in CKD patients, such as fluid overload, decreased cytokine clearance, presence of uremia-modified proteins, presence of chronic infections, metabolic disturbances (including hyperglycemia), obesity. Many of these factors are related to PD. Latin America has made some progress in economic issues; however, a large portion of the population is still living in poverty, in poor sanitary conditions, and with many health-related issues, such as an increasing elderly population, low birth weights, and increasingly high energy intake in the adult population, which, in combination with changes in lifestyle, has provoked an increase in the prevalence of obesity, diabetes, and CVD. Therefore, in Latin America, there seems to be a peculiar situation combining high prevalence of low education level, poor sanitary conditions, and poverty with increases in obesity, diabetes, and sedentary lifestyle. Since inflammation and mortality risk are intimately related to both sides of those health issues, in this review we aim to analyze the peculiarities of inflammation and mortality risk in the Latin-American PD population.     

Sevelamer hydrochloride in peritoneal dialysis patients: results of a multicenter cross-sectional study.

BACKGROUND: Sevelamer hydrochloride is a phosphate binder widely employed in hemodialysis patients. Until now, information about its efficacy and safety in peritoneal dialysis patients has been scarce. PATIENTS AND METHODS: In September 2005 a cross-sectional study of demographic, biochemical, and therapeutic data of patients from 10 peritoneal dialysis units in Catalonia and the Balearic Islands, Spain, was conducted. RESULTS: We analyzed data from 228 patients. At the time of the study, 128 patients (56%) were receiving sevelamer. Patients receiving sevelamer were younger (p < 0.01), showed a longer period of time on dialysis (p < 0.01), and had a lower Charlson Comorbidity Index (p < 0.01). Serum calcium and intact parathyroid hormone levels were not different between the two groups, while phosphate levels <5.5 mg/dL were observed more frequently in patients not receiving sevelamer (79% vs 61%, p < 0.01). Serum total cholesterol (167 +/- 41 vs 189 +/- 42 mg/dL, p < 0.01) and low density lipoprotein (LDL) cholesterol (90 +/- 34 vs 109 +/- 34 mg/dL, p < 0.01), but not high density lipoprotein cholesterol or triglycerides, were lower in sevelamer-treated patients. Moreover, sevelamer-treated patients displayed a higher serum albumin (38 +/- 5 vs 36 +/- 4 g/L, p < 0.01) and a lower C-reactive protein (4.9 +/- 12.8 vs 8.8 +/- 15.7 mg/L, p < 0.01). Blood bicarbonate levels <22 mmol/L were observed more frequently in patients receiving sevelamer (22% vs 5%, p < 0.01). Logistic regression analysis adjusting by confounding variables confirmed that sevelamer therapy was associated with serum total cholesterol <200 mg/dL [relative risk (RR): 2.77, 95% confidence interval (CI): 1.44 - 5.26, p = 0.002] and blood bicarbonate <22 mmol/L (RR: 8.5, 95% CI: 2.6 - 27.0, p < 0.001), but not with serum phosphate >5.5 mg/dL, calcium-phosphate product >55 mg(2)/dL(2), serum albumin <35 g/L, or C-reactive protein >5 mg/L. CONCLUSIONS: This uncontrolled cross-sectional study in peritoneal dialysis patients showed that sevelamer hydrochloride treatment allows an adequate serum phosphate level in about 60% of patients and significantly reduces total and LDL-cholesterol levels. Since this treatment is associated with metabolic acidosis in 22% of patients, we recommend close monitoring of bicarbonate levels in this group of patients until the clinical significance of this result is clarified.     

Physiological properties of the peritoneum in an adult peritoneal dialysis population over a three-year period.

OBJECTIVES: To describe the physiological properties of the peritoneal membrane in adult patients treated with peritoneal dialysis (PD) and to analyze the effects of patient characteristics and time. DESIGN: Observational study. SETTING: Department of Nephrology at the Sahlgrenska University Hospital. METHOD: Peritoneal function was analyzed by the Personal Dialysis Capacity (PDC) test, based on the three-pore theory of capillary transport. The functional PDC variables are absorption, large-pore flow, and the area parameter (A0/deltax), which determines the diffusion of small solutes. The ultra-filtration (UF) coefficient is determined mainly by A0/deltax. PATIENTS: All patients (n = 280) who had at least one PDC test done between September 1990 and August 1999. RESULTS: In 249 patients examined soon after start of PD, area was 19000 (SD 7100) cm2/cm/1.73 m2, large-pore flow 0.112 (SD 0.052) mL/min/1.73 m2, and the UF coefficient 0.071 (SD 0.032) mL/minute/mmHg/1.73 m2. Absorption was 1.54 (SD +2.64, -0.97) mL/min/1.73 m2. Large-pore flow was greater in patients with severe comorbidity than in patients with fewercomorbid conditions. Elderly patients had a lower UF coefficient than did younger patients (p < 0.05). Repeated PDC tests were performed in 208 patients during a mean observation time of 18.4 months. There was a slight increase in the slope of the area-versus-time curve of 54 cm2/cm/1.73 m2 per month (approximately 10% after 3 years, p < 0.01); all other parameters remained constant. CONCLUSION: Patient characteristics have an impact on peritoneal performance already at the start of dialysis. Peritoneal function can remain essentially stable during medium long-term PD.     

High prevalence of hyperparathyroidism among peritoneal dialysis patients: a review of 176 patients.

OBJECTIVES: Parathyroid dysfunction continues to produce significant morbidity in dialysis patients. Since the introduction of low calcium dialysate for peritoneal dialysis (PD), no large studies have been done to determine the prevalence of parathyroid dysfunction in these patients. This study was done to assess the prevalence of parathyroid disease in the PD population and to determine the risk factors associated with this dysfunction. DESIGN: We analyzed data on 176 patients who received PD at a single center between August 1998 and February 1999. Clinical data, laboratory variables related to parathyroid function, and data pertaining to dialysis treatment and weekly drug dosing were obtained for each patient on two different occasions, approximately 3 months apart. Variables predictive of the development of parathyroid dysfunction were calculated by univariate and multivariate logistic regression analysis. RESULTS: Two-thirds of the patients surveyed had an abnormal intact parathyroid hormone (iPTH) level: 47% had an iPTH level more than three times normal, the mean was 54.6+/-35.4 pmol/L; 23% had an iPTH value below the upper limit of normal, here the mean was 3.6+/-1.8 pmol/L. Diabetic patients had lower iPTH levels (22.2+/-28.4 pmol/L) than nondiabetics (33.9+/-34.8 pmol/L) (p = 0.02). On multivariate regression analysis, we found that age, duration of dialysis, Kt/V, serum bicarbonate, and serum ionized calcium levels did not significantly affect parathyroid function. Hyperphosphatemia was the only factor that was associated with the development of secondary hyperparathyroidism in this study population (p = 0.029). CONCLUSION: There is a high prevalence of hyperparathyroidism in the current PD population. Phosphate control is suboptimal and hyperphosphatemia is an independent risk factor for the development of hyperparathyroidism.