Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 40
Filter
1.
Hepatogastroenterology ; 56(90): 403-6, 2009.
Article in English | MEDLINE | ID: mdl-19579608

ABSTRACT

BACKGROUND/AIMS: The results of laparoscopic Nissen's fundoplication (LNF) were compared in patients having typical and atypical symptoms of Gastroesophageal reflux disease (GERD). Atypical symptoms include asthma, chronic cough, non-cardiac chest pain, and ear, nose, and throat symptoms. The effectiveness of antireflux surgery in relief of these symptoms is uncertain. METHODOLOGY: 100 patients with GERD underwent laparoscopic Nissen's fundoplication in El-Mansoura Gastro-enterology center between January, 2002 and March, 2004. Patients were classified according to preoperative symptoms into 3 groups; group 1 (71 cases with severe typical and minimal atypical symptoms), group 2 (18 cases with severe typical and severe atypical symptoms) and group 3 (11 cases with minimal typical and severe atypical symptoms). Patients were reassessed within a mean period of 24 +/- 12 months after surgery. RESULTS: Duration of illness was nearly similar in the three groups (3.2 +/- 2.7:3.3 +/- 2.9:3.7 +/- 3.2 years). In group 1, typical symptoms improved in 66 (92.9%) cases and resolved in 63 (88.7%). In group 2, typical symptoms improved in 17 (94.4%) and resolved in 16 (88.9%), whereas atypical symptoms improved in 15 (83.3%) and resolved in 10 (55.6%). In group 3, atypical symptoms improved in 9 (81.8%) and resolved in 5 (45.5%). Endoscopic, radiologic, esophageal motility and pH metry studies were nearly similar in the 3 groups. CONCLUSIONS: Antireflux surgery improves atypical symptoms of GERD, but symptom resolution occurs in less than half of cases.


Subject(s)
Fundoplication/methods , Gastroesophageal Reflux/surgery , Adolescent , Adult , Barium Sulfate , Esophageal pH Monitoring , Esophagoscopy , Female , Gastroesophageal Reflux/classification , Humans , Male , Manometry , Middle Aged , Prospective Studies , Treatment Outcome
3.
Am J Transplant ; 7(6): 1506-14, 2007 Jun.
Article in English | MEDLINE | ID: mdl-17359512

ABSTRACT

DIRECT (Diabetes Incidence after Renal Transplantation: Neoral C(2) Monitoring Versus Tacrolimus) was a 6-month, open-label, randomized, multicenter study which used American Diabetes Association/World Health Organization criteria to define glucose abnormalities. De novo renal transplant patients were randomized to cyclosporine microemulsion (CsA-ME, using C(2) monitoring) or tacrolimus, with mycophenolic acid, steroids and basiliximab. The intent-to-treat population comprised 682 patients (336 CsA-ME, 346 tacrolimus): 567 were nondiabetic at baseline. Demographics, diabetes risk factors and steroid doses were similar between treatment groups. The primary safety endpoint, new-onset diabetes after transplant (NODAT) or impaired fasting glucose (IFG) at 6 months, occurred in 73 CsA-ME patients (26.0%) and 96 tacrolimus patients (33.6%, p = 0.046). The primary efficacy endpoint, biopsy-proven acute rejection, graft loss or death at 6 months, occurred in 43 CsA-ME patients (12.8%) and 34 tacrolimus patients (9.8%, p = 0.211). Mean glomerular filtration rate (Cockcroft-Gault) was 63.6 +/- 20.7 mL/min/1.73 m(2) in the CsA-ME cohort and 65.9 +/- 23.1 mL/min/1.73 m(2) with tacrolimus (p = 0.285); mean serum creatinine was 139 +/- 58 and 133 +/- 57 mumol/L, respectively (p = 0.005). Blood pressure was similar between treatment groups at month 6, but total cholesterol, LDL-cholesterol and triglyceride levels were significantly higher with CsA than with tacrolimus (total cholesterol:HDL remained unchanged). The profile and incidence of adverse events were similar between treatments. The incidence of NODAT or IFG at 6 months post-transplant is significantly lower with CsA-ME than with tacrolimus without a significant difference in short-term outcome.


Subject(s)
Cyclosporine/therapeutic use , Glucose/metabolism , Kidney Transplantation/immunology , Metabolic Diseases/immunology , Tacrolimus/therapeutic use , Adolescent , Adult , Aged , Cyclosporine/adverse effects , Diabetes Mellitus/epidemiology , Diabetes Mellitus/immunology , Drug Therapy, Combination , Humans , Immunosuppressive Agents/adverse effects , Immunosuppressive Agents/therapeutic use , Metabolic Diseases/epidemiology , Middle Aged , Tacrolimus/adverse effects , Treatment Outcome
4.
Water Sci Technol ; 53(9): 229-37, 2006.
Article in English | MEDLINE | ID: mdl-16841747

ABSTRACT

Egypt produces approximately 2.4 million m3 of secondary treated wastewater (TWW) annually, used for irrigation directly or indirectly by blending with agricultural drainage water (BDW). The annual re-use of (BDW) is approximately 4 million m3. The safe and efficient use of marginal water (BDW and TWW) is a core objective of this study which has been operating from 1997 to date. After six growing seasons the main results can be summarized as follows: MAXIMIZING CROP PRODUCTION: TWW can be used for high production of oil crops (canola, soybean sunflower or maize) compared to fresh water, while BDW can be used for high production of tolerant crops (cotton and sugar beet). CROP QUALITY: using marginal water increases the concentration of elements (Pb, B, Ni, Co) in all crops but these elements were under critical levels (there were no toxicity hazards). It is better to use alternative irrigation with fresh water under a drip irrigation system to maximise crop production and minimise the adverse effects of such water in field crops quality. SOIL POLLUTION AND SALINITY BUILD UP: A drip irrigation system under alternative irrigation by fresh with TWW or BDW reduces salinity build up risks and the levels of elements (Pb, B, Ni, Co) in soil compared to re-use marginal water. SOIL PATHOGENS: Using marginal water slightly contaminated the soil with total faecal coliform (TFC), mites, shigella and salmonella. PLANT ANATOMY: No great changes in anatomical disturbance where induced in different structures of plants which were reduced at maturity stage. PRIMARY GUIDELINES FOR RE-USING MARGINAL WATER: From obtained results it can be recommended to use marginal water with salinity content ranged between 1.1 to 3.64dS/m, and elemental contents (Pb 3.0-3.51 ppm), (B 0.05-1.67 ppm), (Co 0.04-0.07 ppm), (Ni 0.08-0.15 ppm) for safe (field, vegetable and medicinal) crops production. REUSE BIO SOLIDS FOR CROP PRODUCTION: Sewage sludge produced from treated wastewater can be safely used by mixing with rice straw (1:1 w/w) for economic crop production and saving mineral fertilisers. GENERAL CONCLUSION: In the North Nile Delta, marginal water (especially BDW) can be safely used without significant negative impact on the environment, but there is a need for multi-disciplinary, long-term research to investigate irrigation with marginal water in terms of the environment, public health and agricultural productivity.


Subject(s)
Agriculture , Conservation of Natural Resources , Environmental Monitoring , Water Pollutants, Chemical , Water Purification , Crops, Agricultural/growth & development , Crops, Agricultural/standards , Egypt , Soil Pollutants/analysis , Soil Pollutants/standards , Water Pollutants, Chemical/analysis , Water Pollutants, Chemical/standards , Water Purification/methods , Water Purification/standards
5.
Ultrasonics ; 44 Suppl 1: e1439-45, 2006 Dec 22.
Article in English | MEDLINE | ID: mdl-16842835

ABSTRACT

The compatibility of solid blends: PS/SBR, PS/SBR filled with glass fiber and PS/SBR filled with talc were studied using ultrasonic pulse echo technique. Measurements were carried out at room temperature (298 K) and a frequency of 3 MHz. The ultrasonic velocity for the compressional wave and that for shear wave have been measured to obtain the elastic moduli data by knowing of density. The variation of ultrasonic wave velocities and elastic moduli with weight percent of the blend was found to be linear in PS/SBR blend, indicating some degree of compatibility but the drawback of elastic moduli indicate incompatibility of the system blend, while it deviates from linearity in blends of PS/SBR filled with glass fiber and talc but the increase in elastic moduli indicates that there is an increase in degree of compatibility between PS and SBR due to adding of glass fiber or talc. The ultrasonic absorptions for longitudinal wave in the temperature range from 298 to 423 K in the studied system were measured using ultrasonic pulse echo technique. Typical results showing the temperature dependence of the ultrasonic absorption at frequencies of 1, 2, 3 and 5 MHz are illustrated for all samples of the different compositions. The study of compositional and temperature dependence of the ultrasonic absorption in the present studied blends reveals the same behavior of the compatibility degree of the blends. Density data of the blends confirmed the ultrasonic results. Also the correlation between hardness and elastic moduli for the present blend systems has been studied.

6.
Transplant Proc ; 37(2): 712-3, 2005 Mar.
Article in English | MEDLINE | ID: mdl-15848510

ABSTRACT

The UNOS donor population was examined from 1999 to 2002, and approximately 25% of the over 23,000 donors were biopsied (Bx). There was a significant trend (P < .001) of older donors, cardiovascular accident, and hypertension in the Bx group versus the non-Bx group. The percent GS was directly correlated (P < .001) to graft survival, delayed graft function, and primary nonfunction. Cox regression showed significant relative risk (RR) for >10% GS, hypertension, donors over the age of 50, and African American recipients. RR in donors with >10% GS could be ameliorated (P < .001) by choosing donors with <5 HLA-A, -B, or -DR mismatches (MM), or recipients who were nonsensitized, and/or first transplant. Risk should be managed in donors by choosing appropriate recipients and high-risk immunosuppresion protocols.


Subject(s)
Glomerulosclerosis, Focal Segmental/pathology , Kidney Transplantation/physiology , Kidney/pathology , Tissue Donors , Adult , Creatinine/blood , Female , Humans , Kidney Transplantation/pathology , Male , Middle Aged , Patient Selection , Regression Analysis , Retrospective Studies , Treatment Outcome
7.
Adv Perit Dial ; 17: 29-36, 2001.
Article in English | MEDLINE | ID: mdl-11510292

ABSTRACT

Studies in the uremic rat indicate that insulin resistance and glucose intolerance leading to dyslipidemia are associated with a hyperparathyroid-induced increase in cytosolic calcium ([Ca++i]). These alterations are reversed with verapamil, but recur after discontinuation of the drug, suggesting that increased [Ca++i] is responsible for the metabolic derangement. To our knowledge, no similar studies have been conducted in humans. We retrospectively examined, over 12-year period, the effects of factors that lower [Ca++i] on total serum cholesterol and triglycerides in 176 peritoneal dialysis (PD) patients. Because the study was retrospective, detailed lipid profiles were not available. We therefore relied on the morbidity and mortality outcome related to atherosclerotic vascular disease. Diabetic patients were excluded from the study, because their dyslipidemia and vascular disease are mediated via a different mechanism. The patients were classified into four groups. Group I [high parathyroid hormone (PTH) in the absence of calcium channel blockers (CCBs), n = 56] represented the highest [Ca++i]. Group II (high PTH in the presence of CCBs, n = 43) and group III (lower PTH in the absence of CCBs, n = 37) represented intermediate [Ca++i]. Group IV (lower PTH in the presence of CCBs, n = 40) represented the lowest [Ca++i]. High PTH was defined as > or = 3.0 times normal; lower PTH, as < 3.0 times normal. Lower [Ca++i] was achieved through the use of CCBs, or through lower PTH, or both. Lower PTH was achieved by parathyroidectomy or calcitriol administration. The four groups showed no differences in age, sex, race, weight, dialysis duration, or primary disease. Group I showed a mean serum cholesterol of 358 +/- 27 mg/dL and serum triglycerides of 469 +/- 41 mg/dL. Group II showed mean serum cholesterol of 198 +/- 21 mg/dL and serum triglycerides of 147 +/- 17 mg/dL. Group III showed a mean serum cholesterol of 205 +/- 20 mg/dL and serum triglycerides of 174 +/- 16 mg/dL. Group IV showed mean serum cholesterol of 184 +/- 10 mg/dL (p = 0.008) and serum triglycerides of 103 +/- 8 mg/dL (p = 0.005). The cardiovascular morbidity and mortality incidences were: group I, 64%; group II, 27%; group III, 31%; and group IV, 20% (p = 0.002). We conclude that, in non diabetic PD patients, dyslipidemia is related to a hyperparathyroid-induced increase in cytosolic calcium [Ca++i]. Lowering [Ca++i] by decreasing the parathormone level (via parathyroidectomy or calcitriol administration), or by blocking calcium entry into cells (via CCBs), or both, is associated with less dyslipidemia and improved long-term morbidity and mortality related to atherosclerotic vascular disease.


Subject(s)
Calcium/metabolism , Cardiovascular Diseases/etiology , Cholesterol/blood , Cytosol/metabolism , Parathyroid Hormone/blood , Peritoneal Dialysis , Triglycerides/blood , Arteriosclerosis/etiology , Arteriosclerosis/metabolism , Calcium/blood , Calcium Channel Blockers/therapeutic use , Cardiovascular Diseases/metabolism , Cardiovascular Diseases/mortality , Female , Humans , Hyperlipidemias/etiology , Hyperparathyroidism/etiology , Hyperparathyroidism/metabolism , Kidney Failure, Chronic/complications , Kidney Failure, Chronic/metabolism , Kidney Failure, Chronic/therapy , Male , Middle Aged , Peritoneal Dialysis/adverse effects , Phosphorus/blood , Retrospective Studies , Risk Factors
8.
Pediatrics ; 107(6): E102, 2001 Jun.
Article in English | MEDLINE | ID: mdl-11389300

ABSTRACT

BACKGROUND: There is an increase in the incidence of type 2 diabetes in children and adolescents. Absence of known diabetes autoimmune markers is sometimes required to confirm the diagnosis. OBJECTIVE: To identify clinical and autoimmune characteristics of type 2 diabetes in a pediatric population. METHOD: We report an analysis of 48 children and adolescents with type 2 diabetes, compared with 39 randomly selected children with type 1 diabetes, diagnosed and followed at the Loma Linda University Pediatric Diabetes Center. Ethnic, familial, seasonal, and autoimmune marker characteristics are outlined. To determine the reliability of antibody testing in confirming the type of diabetes at diagnosis, we studied the incidence of positive islet cell antibodies (ICAs), glutamic acid decarboxylase antibodies (GADs), and insulin autoantibodies (IAAs) at diagnosis in both groups. ICA512, GADs, and IAAs were measured by radioimmunoassay. RESULTS: The cohort with type 2 diabetes had a similar gender distribution as the group with type 1 diabetes but a significantly higher age at diagnosis. Ethnic background was significantly different between the 2 groups, predominantly Hispanic in type 2 and white in type 1. Body mass index was significantly higher in type 2 diabetes (mean = 31.24 kg/m(2)). Among the patients with type 2 diabetes, 33% presented in diabetic ketoacidosis, random blood glucose at diagnosis ranged from 11.4 to 22.25 mmol/L (228-445 mg/dL), fasting C-peptide levels ranged from 0.89 to 2.7 nmol/L (2.7-8.2 ng/mL; normal: <1.36 nmol/L), and hemoglobin A(1C) was 10.8 +/- 3.5% (normal: <6.6%). None of these parameters was significantly different from the type 1 diabetes group. Although the incidence of diabetes antibody markers was significantly lower in type 2 versus type 1 diabetes, 8.1% of patients with type 2 diabetes had positive ICAs, 30.3% had positive GADs, and 34.8% had positive IAAs without ever being treated with insulin. In the type 2 diabetes group, none of the Hispanic patients had ICAs. However, there was no significant correlation between any of the diabetes antibodies and obesity, presence of acanthosis nigricans, or family history of diabetes. The frequency of thyroid antibodies was not significantly different from the group with type 1 diabetes. Daily insulin requirements 1 year after diagnosis were significantly lower in type 2 diabetes, ranging from 0 to 1.2 U/kg with a mean of 0.33. CONCLUSION: Absence of diabetes autoimmune markers is not a prerequisite for the diagnosis of type 2 diabetes in children and adolescents.


Subject(s)
Autoantibodies , Autoimmunity/immunology , Biomarkers/analysis , Diabetes Mellitus, Type 2/diagnosis , Diabetes Mellitus, Type 2/immunology , Adolescent , Autoantibodies/analysis , Child , Child, Preschool , Cohort Studies , Diabetes Mellitus, Type 1/classification , Diabetes Mellitus, Type 1/diagnosis , Diabetes Mellitus, Type 1/immunology , Diabetes Mellitus, Type 2/classification , Diagnosis, Differential , Female , Glutamate Decarboxylase/immunology , Humans , Insulin/immunology , Islets of Langerhans/immunology , Male , Radioimmunoassay , Reproducibility of Results , Research Design/standards , Risk Factors , Sampling Studies
9.
Int Urol Nephrol ; 32(2): 185-91, 2000.
Article in English | MEDLINE | ID: mdl-11229631

ABSTRACT

The outcome of patients with acute renal failure (ARF) due to acute tubular necrosis (ATN) was evaluated in this study. Two hundred and twenty-two patients with a mean age of 55.1+/-17.7 years (range 19-97 years; male 153, female 69) who developed ATN in the period from July 1991 through January 1997 were studied. Patients were divided into four groups according to their APACHE II scores at the time of the diagnosis of ATN. Group I included patients with an APACHE II score of 14 or less (n = 70), Group II with a score of 15-18 (n = 52), Group III with a score of 19-23 (n = 58), and group IV with a score of 24 or above (n = 42). The mean APACHE II score for each of the four study groups was 11+/-0.4, 16+/-0.2, 20+/-0.2, and 29+/-0.7, respectively. Patient survival was evaluated by the Kaplan-Meier analysis with censorship at 12 months. Survival rates at 180 days were 67%, 47%, 39%, and zero%, for group I through IV respectively, chi2 = 27.99, p < 0.0001, with a median survival of >365, 120, 31, and 11 days, for groups I through IV, respectively. For patients with oliguria (n = 88) survival at 180 days was 23% vs. 58% for patients without oliguria (n = 134), p < 0.0001, median survival 13 vs. 364 d. Six months survival of those who required dialysis (n = 79) was 25% vs. 58% for those whom dialysis was not needed (n = 143), p = 0.001, median survival 15 vs. 364 d, respectively. In patients with sepsis (n = 58), 6 months survival was 35% vs. 50% for those without sepsis (n = 164), p = 0.013, median survival 14 vs. 169 d. In patients who required mechanical ventilation (n = 72), 6 months survival was 17% vs. 62% for those who did not need respiratory support (n = 150), p = 0.0001, median survival 13 vs. > 365 d, respectively. Finally, 6 months survival in patients with one (kidney only), two, three, and four organ failure was 76, 30, 11, and zero percent, respectively, p = 0.0001, median survival >365, 16, 11, and 12 days, respectively. We conclude that the use of the APACHE II score for the stratification of the severity of illness could be of clinical utility in predicting mortality in patients with ATN. Other predictors of poor prognosis include the need for dialysis, the presence of oliguria, the need for mechanical ventilation, the presence of sepsis, and the number of failed organs.


Subject(s)
Kidney Tubular Necrosis, Acute/therapy , APACHE , Acute Disease , Adult , Aged , Aged, 80 and over , Female , Humans , Kidney Tubular Necrosis, Acute/mortality , Male , Middle Aged , Necrosis , Severity of Illness Index , Survival Rate , Treatment Outcome
10.
Pediatr Diabetes ; 1(3): 131-4, 2000 Sep.
Article in English | MEDLINE | ID: mdl-15016223

ABSTRACT

The incidence of type 1 diabetes is increasing most rapidly in children under 5 yrs of age, a group where the disease appears to be more accelerated than traditional type 1 diabetes. Little is known about demographics, and markers of diabetes autoimmunity, in infants and pre-schoolers with type 1 diabetes. We report an analysis of 47 children diagnosed with type 1 diabetes prior to 5 yrs of age compared with a representative cohort (n=49) diagnosed after 5 yrs of age, and all were followed at Loma Linda University (LLU) Children's Hospital. Ethnic, familial, seasonal, and autoimmune marker characteristics are outlined. To determine the prevalence of diabetes autoimmune markers, ICA512, GAD65 and insulin autoantibodies (IAA) antibodies were measured. Children with early-onset diabetes had a significantly higher incidence of viral illness symptoms (p=0.005) and diabetic ketoacidosis (DKA; p=0.017) at the time of diagnosis. However, hemoglobin A1C (HbA1c) levels at diagnosis were significantly higher in the later-onset group (p=0.001). A honeymoon period was reported in 14.8% of children diagnosed before 5 yrs of age compared with 42.1% in those diagnosed over 5 yrs of age (p=0.038). Islet-cell antibodies (ICAs) and glutamic acid decarboxylase (GAD) antibody titers were significantly different between early- and later-onset groups. ICA titers were positive in 35.29%, and GAD in 41.38% of the early-onset group versus 70.83 and 71.74% in children with later-onset disease, (p=0.001 and 0.009, respectively). IAA titers, drawn after instituting insulin therapy, were not significantly different between the two groups. GAD and ICA512 antibody results suggest a relative lack of diabetes immune markers in infants and toddlers with new-onset diabetes. This finding, and the apparent shorter pre-clinical phase reflected in the lower HbA1c values, may indicate age-related differences in type 1 diabetes autoimmunity or the existence of non-autoimmune diabetogenic mechanisms in younger children.

11.
Am J Kidney Dis ; 33(1): 118-22, 1999 Jan.
Article in English | MEDLINE | ID: mdl-9915276

ABSTRACT

The most commonly used technique for insertion of peritoneal dialysis (PD) catheters is open surgical approach by minilaparotomy. Percutaneous implantation via the peritoneoscopic technique is expanding. Studies have suggested that PD catheters placed peritoneoscopically have longer survival rate than surgically placed ones. However, these studies were not randomized, where the surgical group had more patients who were obese or had prior abdominal surgery, and therefore, the selection of patients may have biased the results. We conducted a prospective randomized study in which patients underwent PD catheter placement by either the surgical or the peritoneoscopic technique. In the period from October 1992 through October 1995, 148 double-cuff, curled-end, swan-neck PD catheters were placed in 148 patients. The outcome of the 76 patients in whom the PD catheters were placed peritoneoscopically was compared with that of the 72 patients in whom the catheters were placed surgically. Early peritonitis episodes (within 2 weeks of catheter placement) occurred in 9 of 72 patients (12.5%) in the surgical group, versus 2 of 76 patients (2.6%) in the peritoneoscopy group (P = 0.02). This higher rate of infection was most likely related to a higher exit site leak in the surgical group (11.1%) as compared with the peritoneoscopy group (1.3%). Moreover, peritoneoscopically placed catheters were found to have better survival (77.5% at 12 months, 63% at 24 months, and 51.3% at 36 months) than those placed surgically (62.5% at 12 months, 41.5% at 24 months, and 36% at 36 months) with P = 0.02, 0.01, and 0.04, respectively. We conclude that peritoneoscopically placed PD catheters have a longer survival rate than surgically placed ones. Furthermore, the rate of exit site leak and early infection is lower in the peritoneoscopic method.


Subject(s)
Laparoscopy/methods , Laparotomy/methods , Peritoneal Dialysis/methods , Adolescent , Adult , Aged , Aged, 80 and over , Catheterization/instrumentation , Catheterization/methods , Catheterization/statistics & numerical data , Chi-Square Distribution , Female , Humans , Laparoscopy/adverse effects , Laparoscopy/statistics & numerical data , Laparotomy/adverse effects , Laparotomy/statistics & numerical data , Male , Middle Aged , Peritoneal Dialysis/instrumentation , Peritoneal Dialysis/statistics & numerical data , Prospective Studies , Statistics, Nonparametric , Treatment Outcome
12.
Am J Nephrol ; 18(5): 452-5, 1998.
Article in English | MEDLINE | ID: mdl-9730575

ABSTRACT

Despite significant progress to decrease its incidence, peritonitis remains the main source of morbidity and treatment failure in patients on continuous ambulatory peritoneal dialysis (CAPD). The majority of cases of peritonitis result from infection with aerobic gram-positive (Staphylococcus epidermidis and Staphylococcus aureus), or gram-negative organisms. Less common organisms that are also reported include anaerobic bacteria, fungi, and mycobacteria, which collectively account for less than 10% of isolates cultured. We report a case of peritoneal dialysis-associated peritonitis, and review the literature on peritonitis caused by Alcaligenes species. Alcaligenes xylosoxidans is a nonfermenting gram-negative rod and opportunistic pathogen that is motile with peritrichous flagella. The clinical features and microbiological data of our case, as well as the other previously reported cases of peritonitis caused by Alcaligenes species show no particular pattern of peritoneal dialysate cell count. However, the rate of recurrence of peritonitis is characteristically high. The cause of such a high rate of recurrence of peritonitis is probably a reflection of the predilection of Alcaligenes species to cause infection in the 'sicker' patients, and the almost universal resistance of this species to most antimicrobial agents. We, therefore, recommend that catheter removal be undertaken as early as the identification of the organism is made. Whether patients should be allowed to return to CAPD after recovery is a more difficult question. We suggest that a reevaluation of the patient's overall status be undertaken, including personal hygiene, exchange technique, presence of diabetes mellitus, malnutrition, and/or other factors that may render the patient more prone to infection with opportunistic pathogens.


Subject(s)
Alcaligenes , Gram-Negative Bacterial Infections/etiology , Peritoneal Dialysis/adverse effects , Peritonitis/etiology , Female , Gram-Negative Bacterial Infections/diagnosis , Gram-Negative Bacterial Infections/drug therapy , Humans , Middle Aged , Peritoneal Dialysis, Continuous Ambulatory/adverse effects , Peritonitis/diagnosis , Peritonitis/drug therapy
13.
Am J Nephrol ; 17(6): 511-7, 1997.
Article in English | MEDLINE | ID: mdl-9426847

ABSTRACT

Many primary renal diseases are associated with marked proteinuria resistant to immunosuppressive therapy. Short-term treatment with angiotensin converting enzyme (ACE) inhibitors may decrease proteinuria in these patients, but the long-term effect of these agents on urinary protein excretion is not known. We conducted a double-blind, parallel-design, placebo-controlled study of 1 year duration to evaluate the efficacy of the new ACE inhibitor, perindopril, in reducing proteinuria in patients with nephrotic syndrome due to histologically proven membranous and membranoproliferative glomerulonephritis and focal segmental glomerulosclerosis. Half of the patients treated with perindopril displayed a decrease in urinary protein excretion from 6.1 +/- 1.0 to 1.2 +/- 0.5 g/24 h, and a rise in serum albumin levels. In the placebo group, protein excretion increased modestly and serum albumin level did not change. There was no difference between the responders and nonresponders to perindopril in age, blood pressure, level of creatinine clearance or urinary sodium excretion. However, the degree of proteinuria before treatment with perindopril was significantly (p < 0.01) higher in the nonresponders. In 3 patients in whom the treatment with perindopril was extended for 18-24 months, urinary protein excretion remained below 1 g/24 h. The data show that perindopril: (1) is an effective agent in the treatment of proteinuria of primary renal diseases; (2) the effect is sustained for up to 2 years if the administration of the drugs is maintained, and (3) this action of perindopril does not depend on the level of sodium intake.


Subject(s)
Angiotensin-Converting Enzyme Inhibitors/therapeutic use , Indoles/therapeutic use , Kidney Diseases/complications , Proteinuria/drug therapy , Adult , Blood Pressure , Double-Blind Method , Female , Humans , Indoles/administration & dosage , Male , Middle Aged , Perindopril , Proteinuria/complications , Proteinuria/urine , Serum Albumin/analysis , Sodium/urine , Treatment Outcome
15.
Am J Nephrol ; 16(5): 446-50, 1996.
Article in English | MEDLINE | ID: mdl-8886184

ABSTRACT

Thrombotic microangiopathy (TMA) is more common in HIV-infected individuals than in the normal population. In idiopathic TMA, plasmapheresis with or without prednisone decreases the mortality rate from almost 100 to 10%. Patients with HIV-associated TMA, who do not have AIDS, have a similar favorable outcome when treated with plasmapheresis. However, all 12 patients previously reported with AIDS-associated TMA have died. We report another patient with AIDS-associated TMA, who had a fulminant hospital course and died despite plasmapheresis. None of the reported AIDS-associated TMA patients had evidence of opportunistic infections, sepsis or disseminated malignancies at the time of their death. Since many infections and malignancies can be associated with TMA, it is possible that TMA can be an association of the terminal illness rather than an independent cause of death in AIDS patients. To examine this possibility, we reviewed the charts of all the patients who were hospitalized and died of AIDS at our medical centers from 1987 to 1994. Of the 214 patients reviewed, 15 patients (7%) had evidence of TMA at the time of their death. Seven of the 15 patients (47%) had no direct cause of death other than TMA. The remaining 8 patients had evidence of sepsis and other overwhelming infections. In conclusion, TMA is common in AIDS patients. While HIV-associated TMA has a good prognosis similar to that of idiopathic TMA, AIDS-associated TMA has a grave prognosis. The etiology of the higher mortality in AIDS-associated TMA as compared to HIV-associated TMA remains unclear.


Subject(s)
Acquired Immunodeficiency Syndrome/complications , HIV Infections/complications , Purpura, Thrombotic Thrombocytopenic/complications , Acquired Immunodeficiency Syndrome/diagnosis , Adult , Female , HIV , HIV Infections/diagnosis , Humans , Male , Middle Aged , Multiple Organ Failure/diagnosis , Multiple Organ Failure/etiology , Multiple Organ Failure/mortality , Prognosis , Purpura, Thrombotic Thrombocytopenic/diagnosis , Purpura, Thrombotic Thrombocytopenic/mortality , Survival Rate
16.
Nephron ; 72(4): 679-82, 1996.
Article in English | MEDLINE | ID: mdl-8730442

ABSTRACT

A renal transplant recipient who developed severe acne 6 months after transplantation is described. Maintenance immunosuppression consisted of cyclosporine A (CsA), azathioprine and prednisone. Tapering the prednisone dose to as low as 5 mg/day, in addition to topical tetracycline, Retin-A cream, and systemic antimicrobial therapy failed to control the progression of the skin lesions. Despite therapy with isotretinoin (Accutane), the lesions continued to progress with nodulocystic transformation (acne conglobata) and isotretinoin was discontinued after 4 months. However, the condition continued to worsen with the development of a systemic illness with daily fever, diaphoresis, and depression. High fever (103 degrees F) with shaking chills prompted hospitalization. Withdrawal of CsA resulted in rapid and continuous improvement of the skin lesions. After 12 months of follow-up, the lesions significantly resolved except for residual areas of scarring. No episodes of acute allograft rejection occurred. In conclusion, we suggest that CsA therapy may be associated with the development of acne. Nodulocystic transformation (acne conglobata) may occur despite the use of isotretinoin. Finally, withdrawal of CsA may lead to resolution of the skin disease and should, therefore, be considered as a therapeutic option for severe and treatment-resistant cases.


Subject(s)
Acne Vulgaris/chemically induced , Cyclosporine/adverse effects , Immunosuppressive Agents/adverse effects , Acne Vulgaris/drug therapy , Acne Vulgaris/pathology , Adult , Humans , Isotretinoin/therapeutic use , Keratolytic Agents/therapeutic use , Kidney Transplantation , Male , Skin/pathology
18.
Am J Nephrol ; 15(2): 123-8, 1995.
Article in English | MEDLINE | ID: mdl-7733148

ABSTRACT

The outcome of renal transplantation in 64 patients with end-stage renal disease (ESRD) secondary to lupus nephritis is the subject of this report. The patients were transplanted over a 150-month (12.5-year) period (between July 5, 1979, and January 30, 1992). The study population is predominantly made up of young females (mean age, 34.7 +/- 9 years, n = 54, 81.3%). Fifty-one transplants (79.7%) are cadaveric, and 13 (20.3%) are from living-related donors. Fifty-eight patients (90.6%) had primary (first) allografts, and 6 (9.4%) received a second allograft. Posttransplantation immunosuppression consisted of azathioprine and prednisone (AZA group, n = 22, 34.3%) or AZA, prednisone and cyclosporine (CsA group, n = 42, 65.6%). For all 64 patients combined, the 1-year graft and patient survival rates are 68.8 and 86.5%, respectively, whereas 5-year graft and patient survival rates are 60.9 and 85.9%, respectively. Patients whose immunosuppressive regimen was CsA-based had a 1-year graft survival of 71.5 versus 63.6% in the AZA group. However, this 7.9% difference did not reach statistical significance (p = 0.95). The 5-year graft survival of the CsA-based group was 69.1 versus 45.5% for the AZA group, p < 0.05. One-year patient survival was 77.3% for the AZA group and 92.9% for the CsA group, p < 0.05). The data show that patients with ESRD secondary to lupus nephritis can undergo renal transplantation with satisfactory outcome. Immunosuppression based upon CsA improves first-year patient and allograft survival by 15.6 and 7.9%. respectively.(ABSTRACT TRUNCATED AT 250 WORDS)


Subject(s)
Kidney Failure, Chronic/surgery , Kidney Transplantation , Lupus Nephritis/surgery , Adult , Azathioprine/therapeutic use , Cadaver , Cyclosporine/therapeutic use , Female , Graft Survival , Humans , Immunosuppression Therapy , Kidney Failure, Chronic/etiology , Kidney Failure, Chronic/mortality , Kidney Transplantation/mortality , Lupus Nephritis/mortality , Male , Prednisone/therapeutic use , Survival Rate , Time Factors , Tissue Donors , Treatment Outcome
19.
Am J Nephrol ; 15(4): 332-6, 1995.
Article in English | MEDLINE | ID: mdl-7573193

ABSTRACT

The internal jugular vein is increasingly being used as a temporary route for dual-lumen hemodialysis catheter placement. It is thought to be safer than the subclavian or femoral vein sites. It is important, however, to point out that this route can also be associated with serious complications. Herein we describe a case of right common carotid artery fistula as a complication of the insertion of a polyurethane double-lumen hemodialysis catheter into the right internal jugular vein. A review of the literature on traumatic complications associated with central venous cannulation is also presented.


Subject(s)
Arteriovenous Fistula/etiology , Carotid Artery Diseases/etiology , Catheterization, Central Venous/adverse effects , Jugular Veins , Renal Dialysis/adverse effects , Acute Kidney Injury/therapy , Adult , Arteriovenous Fistula/diagnosis , Catheterization, Central Venous/instrumentation , Humans , Male , Renal Dialysis/instrumentation
20.
Am J Nephrol ; 15(4): 348-52, 1995.
Article in English | MEDLINE | ID: mdl-7573196

ABSTRACT

Fungi classified in the genera Bipolaris are an uncommon source of infection in human diseases. It is also a rare source of peritonitis in peritoneal dialysis (PD) patients. All cases of Bipolaris peritonitis reported in the United States have occurred in the southern states. This form of peritonitis appears to have a good prognosis, with cure achieved only after removal of the peritoneal dialysis catheter and antifungal therapy. Systemic or intraperitoneal amphotericin-B with or without oral ketoconazole has been used in all previously reported cases. However, the role of antifungal therapy is unclear. We report a case of Bipolaris hawaiiensis peritonitis in a 73-year-old female on continuous cyclic peritoneal dialysis (CCPD) for 10 months who presented with a nonfunctioning peritoneal catheter. The catheter had characteristic dark gray particles, each composing a fungal ball within the lumen of the catheter. Microscopic examination confirmed the organism attached to the inner wall of the catheter. The patient achieved cure without using either amphotericin-B or ketoconazole. She was treated with removal of the catheter and a 2-week course of oral itraconazole 100 mg twice daily. A new catheter was placed after 1 month and the patient continued to do well on CCPD 12 months later with no evidence of recurrent infection. We conclude that (1) itraconazole can effect cure following removal of the catheter without using amphotericin-B or ketoconazole; (2) peritoneal dialysis can be safely reinstituted after itraconazole therapy for this uncommon fungal infection, and (3) itraconazole therapy allows for out-patient treatment of B. hawaiiensis peritonitis in peritoneal dialysis patients.


Subject(s)
Antifungal Agents/therapeutic use , Itraconazole/therapeutic use , Mycoses/drug therapy , Peritoneal Dialysis , Peritonitis/drug therapy , Administration, Oral , Aged , Catheterization , Female , Humans , Peritonitis/microbiology
SELECTION OF CITATIONS
SEARCH DETAIL
...