Comparison of functional and morphological changes of transplanted kidneys from marginal and ideal donors

2012 ◽  
Vol 153 (45) ◽  
pp. 1793-1796
Author(s):  
Bernadett Borda

Introduction: Despite an increased number of cadaver donors and organ transplantations, there is a marked increase in the number of patients included in the transplantation waiting list. Aim and method: The aim of the study was to evaluate functional and morphologic changes of kidney allografts obtained from marginal (n = 63) and “ideal” donors (n = 186). In patients with kidneys from marginal donors, the impact of donor age and the presence of hypertension in donors on kidney function were also studied. Results: One year after kidney transplantation, kidney function was similar in patients transplanted with kidneys from marginal and “ideal” donors, although significant morphologic differences were observed between the two groups. However, five years after transplantation serum creatinine (p = 0.0001) and eGFR (p = 0.003) were significantly different between patients transplanted with kidneys from marginal and “ideal” donors. There was also a significant difference in serum creatinine level of patients who received kidneys from donors older than 55 years of age compared to patients whose kidney allografts were obtained form donor who has hypertension (p = 0.0003). Acute rejection episodes (p = 0.0004) and interstitial fibrosis/tubular atrophy (p = 0.002) occurred more frequently in patients with kidneys from marginal compared to those from “ideal” donors. Conclusion: One year after kidney transplantation renal function is similar in patients transplanted with kidneys from marginal and „ideal” donors, but patients with kidneys from marginal donors have significantly more impaired renal function five years after kidney transplantation. Orv. Hetil., 2012, 153, 1793–1796.

Blood ◽  
2010 ◽  
Vol 116 (21) ◽  
pp. 2970-2970 ◽  
Author(s):  
Shaji Kumar ◽  
Angela Dispenzieri ◽  
Martha Lacy ◽  
Suzanne R. Hayman ◽  
Francis Buadi ◽  
...  

Abstract Abstract 2970 Background: Over a quarter of patients (pts) with symptomatic multiple myeloma (MM) have some degree of renal insufficiency at the time of diagnosis. Multiple studies show that presence of renal failure is strong predictor of inferior overall survival in MM. With effective therapy, renal function improves in a considerable number of patients. It is not clear if the return of renal function to normal levels will improve their outcome to that expected for patients without renal dysfunction. Methods: We evaluated 1478 patients with newly diagnosed myeloma seen at Mayo Clinic within 90 days of diagnosis, between January 1999 and January 2009. We examined these patients for improvement in renal function and identified the lowest serum creatinine obtained during the disease course. The outcomes were analyzed with respect to the renal function improvements. Results: The median age at diagnosis was 64 years (range; 22–93) and 50% were male. The median estimated follow up for the entire cohort was 53 months, with 781 patients alive at the time of analysis with a median follow of 3 years. The serum creatinine was over 1.5 mg/dL at diagnosis in 333 (22.5%) pts and over 2.5 mg/dL in 148 (10%) pts. The median overall survival for the 333 patients was 37 mos (95% CI; 28, 40) compared to 56 mos (95% CI; 51, 63) for those < 1.5 mg/dL; P < 0.001. Among the 333 pts with baseline Cr > 1.5 mg/dl, any improvement in Cr was seen in 263 (79%) including an improvement of at least 0.5 mg/dL in 208 (62%) pts. Among the 263 pts with any improvement, the median time to lowest Cr was 4 months (range; 1–13). The median survival of the group of patients with Cr <= 1.5 mg/dl, over 1.5 mg/dL at diagnosis but improved to <= 1.5 mg/dL, or remained >1.5 mg/dL were 56., 40 and 27 mos respectively; P < 0.001, Figure). We then examined the impact of renal function improvement in the group of patients where the baseline Cr was >2.5 mg/dL. The median OS for the 42 (out of 148 pts with Cr > 2.5 at diagnosis) who had improved to <=1.5 mg/dL was 40 mos compared to 56 mos for those with a Cr <= 1.5 mg/dL at diagnosis and 27.4 mos for the 106 pts whose Cr did not decrease to <= 1.5 mg/dL; P < 0.001. Conclusion: The results of this study point toward improved outcome among patients with renal dysfunction in whom renal function improves. However, it shows that this improvement in renal function does not necessarily improve survival to that observed for the patients with a comparable level of serum creatinine at diagnosis. While early treatment of asymptomatic myeloma has been shown to have little impact on overall survival, a strategy of waiting for serious features of target organ damage to appear before initiation of treatment may have a negative impact on survival in some patients, especially patients with high light chain production who have a higher predilection for renal insufficiency. Disclosures: Kumar: Celgene: Consultancy, Research Funding; Millennium: Research Funding; Merck: Consultancy, Research Funding; Novartis: Research Funding; Genzyme: Consultancy, Research Funding; Cephalon: Research Funding. Off Label Use: Lenalidomide for treatment of newly diagnosed myeloma. Dispenzieri:Celgene: Honoraria, Research Funding; Binding Site: Honoraria. Lacy:Celgene: Research Funding.


2019 ◽  
Vol 8 (5) ◽  
pp. 713 ◽  
Author(s):  
Ji-Yeon Bang ◽  
Sae-Gyeol Kim ◽  
Jimi Oh ◽  
Seon-Ok Kim ◽  
Yon-Ji Go ◽  
...  

Although remote ischemic preconditioning (RIPC) has been shown to have renoprotective effects, few studies have assessed the effects of RIPC on renal function in living kidney donors. This study investigated whether RIPC performed in living kidney donors could improve residual renal function in donors and outcomes in recipients following kidney transplantation. The donors were randomized into a control group (n = 85) and a RIPC group (n = 85). The recipients were included according to the matched donors. Serum creatinine (sCr) concentrations and estimated glomerular filtration rate (eGFR) were compared between control and RIPC groups in donors and recipients. Delayed graft function, acute rejection, and graft failure within one year after transplantation were evaluated in recipients. sCr was significantly increased in the control group (mean, 1.13; 95% confidence interval (CI), 1.07–1.18) than the RIPC group (1.01; 95% CI, 0.95–1.07) (p = 0.003) at discharge. Donors with serum creatinine >1.4 mg/dL at discharge had higher prevalence of chronic kidney disease (n = 6, 26.1%) than donors with a normal serum creatinine level (n = 8, 5.4%) (p = 0.003) after one year. sCr concentrations and eGFR were similar in the RIPC and control groups of recipients over the one-year follow-up period. Among recipients, no outcome variables differed significantly in the RIPC and control groups. RIPC was effective in improving early renal function in kidney donors but did not improve renal function in recipients.


Author(s):  
Luana Bojko ◽  
Gustavo de Paula Ripka ◽  
Laura Mattana Dionísio ◽  
Celso Luiz Borges ◽  
Danielle Cristyane Kalva Borato ◽  
...  

The estimated glomerular filtration rate is a rather important measurement for patients under intensive care, since they often receive several drugs, and impaired renal function may result in misleading dosing. The estimated glomerular filtration is derived from mathematical models using serum creatinine, a measurement that suffers interference of some drugs, such as metamizole. The study intented to evaluate the impact on patient stratification for dose adjustment of two antimicrobials (meropenem and vancomycin) caused by metamizole interference in creatinine measurement by dry chemistry. A cross-sectional study was conducted with a group of 108 hospitalized patients under metamizole prescriptions at fixed intervals. Serum creatinine levels were determined by enzymatic dry chemistry and Jaffé assays and the estimated glomerular filtration rate was calculated through the CKD-EPI equation. Patients were stratified in groups according to their estimated glomerular filtration rate for drug dosing of vancomycin and meropenem. As expected, creatinine values were significantly lower in measurements performed by the dry chemistry method in comparison to Jaffé assay (p<0.0001) when patients are under metamizole treatment. A significant bias (-40.3%) was observed between those two methods, leading to a significant difference (p<0.0001) in patient classification according to renal function using the CKD-EPI equation for dosing adjustment. Thus, during the validity of metamizole treatment, the stratification for drug dosing by the estimated glomerular filtration rate is not reliable if the creatinine measurement is done through dry chemistry. Clinical and laboratory staff must be aware of these limitations and cooperate to optimize pharmacotherapy.


Author(s):  
Shahlaa Kh. Chabuk

Background: Bronchial asthma can cause many morbidities such as heart disease, diabetes mellitus, and hypertension, but the impact of asthma on renal function is not yet verified. This study aims to clarify the association between bronchial asthma and the risk of developing renal dysfunction. Methods: The study was conducted in Merjan Medical City in the period from April 2015 to August 2016, it included 75 patients with asthma and 70 control healthy subjects who completed medical questionnaires, pulmonary function tests, measurement of blood urea, serum creatinine, and creatinine clearance in addition to measurement of oxygen saturation (SPO2) by oximeter. Hypoxic patient has level of SPO2 less than 95%. Statistical analysis was done, P values ≤0.05 were considered to be clinically significant. Results: There was no significant difference in mean age and gender between both groups. There was significant difference in the mean values of blood urea (Bur), serum creatinine (Scr) and creatinine clearance (Ccr) before and after treatment for all patients, Bur increased and Scr decreased significantly in hypoxic group in comparison with non-hypoxic group (P ˂ 0.05). In addition, the study showed a significant correlation between blood urea and creatinine clearance (Ccr) with SPO2 (before treatment) (p less than 0.05), while non-significant negative correlation between serum creatinine and SPO2 (before treatment) (r = 0.1, P > 0.05). The results revealed that while Ccr decreased while the Bur and Scr increased significantly in male group in comparison to female group (P˂0.05). Also there was no significant correlation between blood urea, creatinine clearance (Ccr) and serum creatinine with forced expiratory volume in first second (FEV1) (before treatment) (P > 0.05). Conclusions: The study showed high percentage of asthmatic patients admitting in the hospital wards had abnormalities of renal function tests at the first days of admission to hospital, but most patients return to normal state gradually after getting treatment. The mechanisms and clinical implications of kidney dysfunction in patients with asthma need further investigation in addition to follow up for those patients to determine who of them will get chronic renal failure at future.


2020 ◽  
Vol 9 (3) ◽  
pp. 263-270 ◽  
Author(s):  
José de Oliveira Vilar Neto ◽  
Carlos Alberto da Silva ◽  
Gdayllon Cavalcante Meneses ◽  
Daniel Vieira Pinto ◽  
Luciana Catunda Brito ◽  
...  

Abstract The aim of this study was to evaluate the impact of creatine supplementation (CS) on renal function in young, healthy, and active subjects. We used a randomized, double-blind, placebo-controlled clinical trial as the study design. Thirty-six healthy male university students were recruited and divided into three groups: group placebo, group G3 (3 g/day of CS), and group G5 (5 g/day of CS). To assess renal function, new kidney biomarkers, kidney injury molecule-1 (KIM-1) and monocyte chemoattractant protein-1 (MCP-1), were quantified. Serum albumin, serum creatinine, serum urea, estimated glomerular filtration rate (eGFR), proteinuria, and albuminuria were also measured. All groups were evaluated at two times: prior CS or placebo (pre) and after 35 days on CS or placebo (post). After 35 days of intervention, all characteristics were maintained without significant difference (P &gt; 0.05) between the groups, including serum creatinine, eGFR, and more sensitive kidney biomarker concentrations (KIM-1 and MCP-1). The paired analysis showed that the supplemented groups (G3 and 5G) had increased serum creatinine and decreased eGFR levels (P &lt; 0.05). However, the values were still within the normal reference range. In conclusion, the results of renal function evaluation did not show any difference between the evaluated groups. Increased serum creatinine and decreased eGFR levels in CS groups can be explained by increased creatine stores and metabolism, since creatinine is a by-product of creatine metabolism. These findings indicate that the use of CS at doses of 3 g and 5 g/day for a short period (35 days) is safe and did not impair the kidneys or renal function in young healthy subjects.


2021 ◽  
Vol 32 (1) ◽  
pp. 39-42
Author(s):  
Mohammad Mehfuz E Khoda ◽  
Muhammad Abdur Rahim ◽  
Ishrat Jahan Shimu ◽  
Rafi Nazrul Islam ◽  
Md Golzar Hossain ◽  
...  

Background: Renal transplantation remains the treatment of choice for end-stage renal disease, as the procedure not only improves quality of life, but also markedly increases patients’ survival rates. Organ and patient survival rates are important issues of interest post-transplantation.The aims of this study were to analyze the data for immediate post-procedure outcome and one-year graft survival after live related kidney transplantation. Methods:A retrospective study was conducted in Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic Disorders (BIRDEM) General Hospital, Dhaka, Bangladesh between November 2004 and September 2019. Data for a total of 132 live related kidney transplant recipients were collected in pre-formed questionnaire from the hospital records. Results:Total patients were 132 including 97 (73.5%) males. Mean age of recipients was 36.8±10.4 years. Mean post-transplantation hospital stay was 13.6±3.4 (range 9 to 30) days. During postoperative hospital stay, 6 (4.6%) patients required haemodialysis due to delayed graft function and high levels of serum creatinine. During discharge, 117 (88.6%) recipients had normal renal function (mean serum creatinine level 1.15±0.21 mg/dl) and 15 (11.4%) patients showed improvement in serum creatinine levels but did not reach normal value (mean serum creatinine levels 3.25±2.35 mg/ dl). All patients were regularly followed-up in post-transplant clinic (3 patients did not complete 1 year) after transplantation. After the first year of kidney transplantation, patient and graft survival rates were 90.7% (117/129) and 82.9% (107/129) respectively. Conclusions: Eighty-eightpercent live related kidney transplant recipients had normal renal function immediate post-surgery and one-year graft survival rate was over eighty percent in this study. Bangladesh J Medicine January 2021; 32(1) : 39-42


2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S144-S144
Author(s):  
Azza Elamin ◽  
Faisal Khan ◽  
Ali Abunayla ◽  
Rajasekhar Jagarlamudi ◽  
aditee Dash

Abstract Background As opposed to Staphylococcus. aureus bacteremia, there are no guidelines to recommend repeating blood cultures in Gram-negative bacilli bacteremia (GNB). Several studies have questioned the utility of follow-up blood cultures (FUBCs) in GNB, but the impact of this practice on clinical outcomes is not fully understood. Our aim was to study the practice of obtaining FUBCs in GNB at our institution and to assess it’s impact on clinical outcomes. Methods We conducted a retrospective, single-center study of adult patients, ≥ 18 years of age admitted with GNB between January 2017 and December 2018. We aimed to compare clinical outcomes in those with and without FUBCs. Data collected included demographics, comorbidities, presumed source of bacteremia and need for intensive care unit (ICU) admission. Presence of fever, hypotension /shock and white blood cell (WBC) count on the day of FUBC was recorded. The primary objective was to compare 30-day mortality between the two groups. Secondary objectives were to compare differences in 30-day readmission rate, hospital length of stay (LOS) and duration of antibiotic treatment. Mean and standard deviation were used for continuous variables, frequency and proportion were used for categorical variables. P-value &lt; 0.05 was defined as statistically significant. Results 482 patients were included, and of these, 321 (67%) had FUBCs. 96% of FUBCs were negative and 2.8% had persistent bacteremia. There was no significant difference in 30-day mortality between those with and without FUBCs (2.9% and 2.7% respectively), or in 30-day readmission rate (21.4% and 23.4% respectively). In patients with FUBCs compared to those without FUBCs, hospital LOS was longer (7 days vs 5 days, P &lt; 0.001), and mean duration of antibiotic treatment was longer (14 days vs 11 days, P &lt; 0.001). A higher number of patients with FUBCs needed ICU care compared to those without FUBCs (41.4% and 25.5% respectively, P &lt; 0.001) Microbiology of index blood culture in those with and without FUBCs Outcomes in those with and without FUBCs FUBCs characteristics Conclusion Obtaining FUBCs in GNB had no impact on 30-day mortality or 30-day readmission rate. It was associated with longer LOS and antibiotic duration. Our findings suggest that FUBCs in GNB are low yield and may not be recommended in all patients. Prospective studies are needed to further examine the utility of this practice in GNB. Disclosures All Authors: No reported disclosures


2021 ◽  
Vol 10 (5) ◽  
pp. 1113
Author(s):  
Kinga Musiał ◽  
Krzysztof Kałwak ◽  
Danuta Zwolińska

Background: Knowledge about the impact of allogeneic hematopoietic stem cell transplantation (alloHSCT) on renal function in children is still limited. Objectives: The aim of the study was to evaluate kidney function in children undergoing alloHSCT, with special focus on differences between patients transplanted due to oncological and non-oncological indications. Materials and Methods: The data of 135 children undergoing alloHSCT were analyzed retrospectively. The serum creatinine and estimated glomerular filtration rate (eGFR) values were estimated before transplantation at 24 h; 1, 2, 3, 4 and 8 weeks; and 3 and 6 months after alloHSCT. Then, acute kidney injury (AKI) incidence was assessed. Results: Oncological children presented with higher eGFR values and more frequent hyperfiltration rates than non-oncological children before alloHSCT and until the 4th week after transplantation. The eGFR levels rose significantly after alloHSCT, returned to pre-transplant records after 2–3 weeks, and decreased gradually until the 6th month. AKI incidence was comparable in oncological and non-oncological patients. Conclusions: Children undergoing alloHSCT due to oncological and non-oncological reasons demonstrate the same risk of AKI, but oncological patients may be more prone to sustained renal injury. Serum creatinine and eGFR seem to be insufficient tools to assess kidney function in the early post-alloHSCT period, when hyperfiltration prevails, yet they reveal significant differences in long-term observation.


2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
R King ◽  
D Giedrimiene

Abstract Funding Acknowledgements Type of funding sources: None. Background The management of patients with multiple comorbidities represents a significant burden on healthcare each year. Despite requiring regular medical care to treat chronic conditions, a large number of these patients may not receive proper care. Significant disparities have been identified in patients with multiple comorbidities and those who experience acute coronary syndrome or acute myocardial infarction (AMI). Only limited data exists to identify the impact of comorbidities and utilization of primary care physician (PCP) services on the development of adverse outcomes, such as AMI. Purpose The primary objective was to analyze how PCP services utilization can be associated with comorbidities in patients who experienced an AMI. Methods This study was based on retrospective data analysis which included 250 patients admitted to the Hartford Hospital Emergency Department (ED) for an AMI. Out of these, 27 patients were excluded due to missing documentation. Collected data included age, gender, medications and recorded comorbidities, such as hypertension, hyperlipidemia, diabetes mellitus (DM), chronic kidney disease (CKD) and previous arrhythmia. Each patient was assessed regarding utilization of PCP services. Statistical analysis was performed in order to identify differences between patients with documented PCP services and those without by using the Chi-square test. Results The records allowed for identification of documented PCP services for 172 out of 223 (77.1%) patients. The most common comorbidities were hypertension and hyperlipidemia: in 165 (74.0%) and 157 (70.4%) cases respectively. The most frequent comorbidity was hypertension: 137 out of 172 (79.7%) in pts with PCP vs 28 out of 51 (54.9%) without PCP, and significantly more often in patients with PCP, p&lt; 0.001. Hyperlipidemia was the second most frequent comorbidity: in 130 out of 172 (75.6%) vs 27 out of 51 (52.9%) accordingly, and also significantly more often (p&lt; 0.002) in patients with PCP services. The number of comorbidities ranged from 0-5, including 32 (14.3%) patients without comorbidities: 16 (9.3%) with a PCP and 16 (31.4%) without PCP services. The majority of patients - 108 (48.5% of 223), had 2-3 documented comorbidities: 89 (51.8%) had two and 19 (34.6%) had three. The remaining 40 (17.9%) patients had 4-5 comorbidities: 37 (21.5%) of them with a PCP and 3 (10.3%) without, with a significant difference (p &lt; 0.001) found for patients with a higher number of comorbidities who utilized PCP services. Conclusions Our study shows that the majority of patients who presented with an AMI had one or more comorbidities. Furthermore, patients who did not utilize PCP services had fewer identified comorbidities. This suggests that there may be a significant number of patients who experienced AMI with undiagnosed comorbidities due to not having access to PCP services.


Author(s):  
Emre Sarıkaya ◽  
Dilek Çiçek ◽  
Ebru Gök ◽  
Leyla Kara ◽  
Uğur Berber ◽  
...  

Abstract Objectives Coronavirus disease 2019 has caused a major epidemic worldwide, and lockdowns became necessary in all countries to prevent its spread. This study aimed to evaluate the effects of staying-at-home practices on the metabolic control of children and adolescents with type 1 diabetes during the pandemic period. Materials and Methods Eighty-nine patients younger than 18 years old who were diagnosed with type 1 diabetes at least one year before the declaration of the pandemic were included in the study. The last visit data of the patients before and after the declaration of the pandemic, and the frequency of presentation of diabetes-related emergencies from one year after diagnosis of type 1 diabetes to the declaration of the pandemic, and from the declaration of the pandemic to the last visit after the pandemic declaration were compared. Results The total number of patients was 89, and 48 (53.9%) were boys. The mean (± standard deviation [SD]) age at diagnosis was 8.4 ± 3.7 years (boys 7.9 ± 3.6 years; girls 8.9 ± 3.9 years). There was no statistically significant difference when the SD values of the anthropometric measurements, and the glycosylated hemoglobin (HbA1c) and lipid profile tests were compared. However, the frequency of admission to the emergency service related to diabetes was significantly different. Conclusions Although the pandemic did not significantly affect the metabolic and glycemic controls of the children with type 1 diabetes included in this study, an increase in the frequency of diabetes-related emergency admissions was noted.


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