scholarly journals Exploration for the Effect of Renal Function and Renal Replacement Therapy on Pharmacokinetics of Remdesivir and GS‐441524 in Patients with COVID‐19: A Limited Case Series

Author(s):  
Pyoeng Gyun Choe ◽  
Sae Im Jeong ◽  
Chang Kyung Kang ◽  
Liju Yang ◽  
SeungHwan Lee ◽  
...  
Nephron ◽  
2021 ◽  
pp. 1-8
Author(s):  
Shaoshan Liang ◽  
Lijuan Li ◽  
Dacheng Chen ◽  
Dandan Liang ◽  
Feng Xu ◽  
...  

<b><i>Introduction:</i></b> Secondary oxalate nephropathy (OxN) is associated with a variety of causes and has not been well characterized in Chinese population. To investigate the etiology, clinicopathological features, and outcomes of secondary OxN, we report a case series from a single center in China. <b><i>Methods:</i></b> A retrospective analysis of 68 patients diagnosed with secondary OxN by renal biopsy from January 2013 to February 2019 in Jinling Hospital was performed. <b><i>Results:</i></b> Secondary OxN accounted for 0.23% of the renal biopsies and 2.31% of patients who received renal biopsies due to acute kidney injury (AKI). A total of 49 men and 19 women with an average age of 51.6 ± 11.8 years were enrolled. The most common cause was iatrogenic medication, followed by oxalate-rich diet and industry exposure. Stage 1, 2, and 3 AKI and AKI on chronic kidney disease (ACKD) were found in 4.4, 8.8, 69.1, and 17.6% of the patients, respectively. The peak serum creatinine during hospitalization was 8.62 ± 4.67 mg/dL. The median urinary oxalate excretion was 51.5 (23.2–147.1) mg/24 h. Kidney biopsy showed extensive calcium oxalate crystal deposits with acute tubulointerstitial nephritis. Thirty-four patients (50.0%) required renal replacement therapy. At the end of a follow-up that lasted 8.7 (0.1–72.1) months, 81.0% of patients achieved renal function recovery in 50 (14–432) days. Patients with renal function recovery had a lower rate of ACKD, a higher level of hemoglobin, a lower level of urine lysozyme, and a lower degree of interstitial fibrosis/tubular atrophy, interstitial inflammation, and global glomerulosclerosis than those in the nonrecovery group. <b><i>Conclusions:</i></b> In this case series of secondary OxN, the most common cause was iatrogenic medication, and it presented with AKI or ACKD. Half of the patients required renal replacement therapy, and in most of them, the renal function was reversible. Renal biopsy played an important role in diagnosis and prognosis evaluation.


2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Maria Rosa Melero Martin ◽  
Alejandra Muñoz de Morales ◽  
Alberto Tejedor Jorge ◽  
Rodriguez benitez Patrocinio ◽  
Arturo Bascuñana ◽  
...  

Abstract Background and Aims Although metformin-associated lactic acidosis (MALA) is a very rare event, is frequently seen in patients on metformin with risk factors for developing acute kidney injury (AKI). The long-term prognosis in patients with metformin-associated lactic acidosis (MALA) and renal failure remains unknown. To describe the characteristics and prognosis of AKI in patients with MALA and investigate whether prescription of RRT and previous renal function are associated with long-term outcomes. Method A retrospective single-centre case series. One hundred and nine patients affected with MALA and AKI admitted between Marx 2007 and February 2019 were included. We analysed comorbidities, laboratory tests, clinical parameters and prescription pattern of RRT at admission. After discharging, renal outcomes (doubling serum creatinine or starting dialysis) and mortality were assessed in the long-term. Results We included 109 patients (59 males and 50 females), mean age of 74.2±8.6 years and mean Charlson comorbidity index of 8.0±2.4. 54 out of 109 patients had previous chronic kidney disease (eGFR &lt; 60 ml/min/1.72 m2). Precipitating causes of AKI associated MALA included; acute dehydration (84.4%), exposure to iodinated contrast (7.3%) and non-specified causes (8.3%). During the admission, renal replacement therapy (RRT) was performed in 72 patients (continuous renal replacement therapy in 47 and dialysis in 25). RRT requirements was significantly associated with lactate, acidosis and serum creatinine levels, but not was associated with higher mortality rate during admission. The patients were followed a median time of 33 (10-65) months after discharging. 33 patients had a renal event and 55 patients died. The patients with CKD before admission had higher number of renal events (log Rank 6.346, p=0.012) and higher mortality (log Rank 12.943, p&lt;0.001). In a model adjusted by age and RRT at admission, women were less likely to develop (HR 0.315(0.136-0.730, p=0.007) long-term renal events and previous CKD increased this probability (HR 2,532 (1.190-5.385), p=0.016). Previous CKD and RRT during admission increased mortality in a model adjusted by age, gender and comorbidity (HR 2.315(1.177-4.553), p=0.015 and HR 1.895(1.003-3.580), p=0.049, respectively). Conclusion The renal function prior to the episode of AKI associated to MALA and the RRT at admission are the main factors related to renal outcomes and mortality in the long-term.


Nephron ◽  
2013 ◽  
Vol 121 (3-4) ◽  
pp. c159-c164 ◽  
Author(s):  
Nils Heyne ◽  
Martina Guthoff ◽  
Julia Krieger ◽  
Michael Haap ◽  
Hans-Ulrich Häring

2021 ◽  
Author(s):  
Anna Buckenmayer ◽  
Lotte Dahmen ◽  
Joachim Hoyer ◽  
Sahana Kamalanabhaiah ◽  
Christian S. Haas

Abstract Background: The erythrocyte sedimentation rate (ESR) is a simple laboratory diagnostic tool for estimating systemic inflammation. It remains unclear, if renal function affects ESR, thereby compromising its validity. This pilot study aims to compare prevalence and extent of ESR elevations in hospitalized patients with or without kidney disease. In addition, the impact of renal replacement therapy (RRT) modality on ESR was determined.Methods: In this single-center, retrospective study, patients were screened for ESR values. ESR was compared in patients with and without renal disease and/or RRT. In addition, ESR was correlated with other inflammatory markers, the extent of renal insufficiency and clinical characteristics.Results: A total of 203 patients was identified, showing an overall elevated ESR in the study population (mean 51.7±34.6 mm/h). ESR was significantly increased in all patients with severe infection, active vasculitis or cancer, respectively, independent from renal function. Interestingly, there was no difference in ESR between patients with and without kidney disease or those having received a prior renal transplant or being on hemodialysis. However, ESRD patients treated with peritoneal dialysis presented with a significantly higher ESR (78.3±33.1 mm/h, p<0.001), while correlation with other inflammatory markers was not persuasive.Conclusions: We showed that ESR: (1) does not differ between various stages of renal insufficiency; (2) may be helpful as a screening tool also in patients with renal insufficiency; and (3) is significantly increased in ESRD patients on peritoneal dialysis per se, while it seems not to be affected by hemodialysis or renal transplantation (see graphical abstract as supplementary material).


2018 ◽  
Vol 17 (1) ◽  
pp. 25-30
Author(s):  
Arun Sharma ◽  
Binod Karki ◽  
Ajay Rajbhandari

INTRODUCTION: Acute kidney injury (AKI) is the sudden loss of renal function with accumulation of nitrogenous waste compounds. In developing countries, community acquired AKI is common than AKI in hospitalized septic patients. With conservative management many patients recover renal function however few require renal support with intermittent Hemodialysis (HD). We conducted a study to find out the etiology and outcome of the patients presenting with AKI who required dialysis.METHODS: This is a descriptive follow up study of the patients who needed renal replacement therapy in the form of HD presenting to our Nephrology unit of the hospital over a period of two years. Patients were followed up for three months post discharge. Data were tabulated and analyzed using SPSS software.RESULTS: Total 50 patients were included in study with 67% male. The commonest etiologies were urinary tract infection (30%) and  acute gastroenteritis (24%).The mean creatinine at the time of nephrology consultation, maximum level and at the time of discharge were 6.5(SD± 2.62), 7.3(SD ±2.13) and 2.2(SD ±1.75) respectively. Uremia with anuria was the most common reason for the initiation of HD in 54% cases. The mean number of intermittent HD used was 3.36. Complete recovery was seen in 68%, death in 26% and CKD in 6%.CONCLUSION: UTI followed by acute gastroenteritis are the leading cause of AKI in our tertiary level hospital. Timely initiated renal replacement therapy in the form of intermittent HD could lead to substantial renal recovery in almost three fourth of patients.


Author(s):  
Aron Chakera ◽  
William G. Herrington ◽  
Christopher A. O’Callaghan

The kidney is a vital organ with multiple functions. Without kidney function, death will occur in a matter of days. Fortunately, several forms of effective renal replacement therapy are available. This chapter gives a concise introduction to basic urinary tract structure, kidney/glomerulus/tubular function and assessment of kidney function.


Author(s):  
Philipp Schädle ◽  
Otto Tschritter ◽  
Monika Kellerer

Abstract Aims The aim of this case report is to specify the frequency and mortality of Metformin-Associated Lactic Acidosis (MALA) in emergency medicine, as the diagnosis seems to occur more often than estimated. Methods To identify the subjects, we developed screening criteria for MALA. We measured the serum metformin concentration to confirm the diagnosis in all patients fulfilling these criteria. Retrospectively the patients were grouped according to individual risk (according to a defined risk score) and the application of renal replacement therapy. Results From 2013 until 2018 we were able to identify 11 MALA patients revealing a frequency of 1:4,000 emergency patients. Six patients survived and five died in the follow-up. All three patients in the high-risk group died although all of them received renal replacement therapy. In the low-risk group (three patients, one with renal replacement therapy), all patients survived, while in the intermediate-risk group (five patients, one with renal replacement therapy) three patients survived and two died. Additional severe comorbidities also contributed to mortality. Conclusions Every patient matching the screening criteria of acute renal failure, lactic acidosis and continued intake of metformin can be considered a potential MALA case. A risk score assessment which includes severe comorbidities may help to identify high-risk individuals and should be evaluated in larger studies.To prevent MALA, patients should be trained to immediately interrupt their own metformin use when showing signs of volume depletion. Physicians should be aware of the additional risk factors such as co-medication with diuretics, ACE (angiotensin converting enzyme) ACE inhibitors and NSAIDs (non steroidal anti inflammatory drugs).


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