scholarly journals Chronic kidney disease predicts poor outcomes of COVID-19 patients

Author(s):  
Mahmut Gok ◽  
Hakki Cetinkaya ◽  
Tugba Kandemir ◽  
Erdem Karahan ◽  
İzzet Burak Tuncer ◽  
...  

Abstract Purpose The recent outbreak of COVID-19 rapidly spread worldwide. Comorbid diseases are determinants of the severity of COVID-19 infection and mortality. The aim of this study was to explore the potential association between chronic kidney disease (CKD) and the severity of COVID-19 infection. Methods The study included 609 consecutive adult patients (male: 54.52%, mean age: 59.23 ± 15.55 years) hospitalized with the diagnosis of COVID-19 in a tertiary level hospital. Data were collected from the electronic health records of the hospital. The patients were separated into two groups: Group I included COVID-19-positive patients with CKD stage 1–2, and Group II included COVID-19-positive with CKD stage 3–5. The relationships were examined between CKD stage, laboratory parameters and mortality. Results Significant differences were determined between the groups in respect of the inflammation parameters and the parameters used in prognosis. In Group II, statistically significantly higher rates were determined of comorbid diseases [hypertension (p < 0.001) and diabetes mellitus (p < 0.001), acute kidney injury (AKI), which was found to be associated with mortality (p < 0.001), and mortality (p < 0.001)]. In multivariate regression analysis, CKD stage 3–5, AKI, male gender, hypertension, DM and malignancy were found to be significant independent variables increasing mortality. Conclusion The prevelance of CKD stage 3–5 on admission is associated with a high risk of in-hospital mortality in patients with COVID-19. Close follow-up can be recommended for patients with a reduced glomerular filtration rate (GFR).

Author(s):  
Hussein A. ◽  
El–Hadidy A. ◽  
Gomaa N. ◽  
Amin Y. ◽  
El-Shabouny T.

Sleep apnea is an important comorbidity in patients with chronic kidney disease (CKD). Although the increased prevalence of sleep apnea in patients with CKD is well established, few studies have examined the full spectrum of kidney function. We sought to determine the prevalence of sleep apnea and associated nocturnal hypoxia in patients with CKD. We hypothesized that the prevalence of sleep apnea would increase progressively as kidney function declines. 45 patients were recruited from outpatient nephrology clinics, nephrology department, and hemodialysis units. All patients completed an overnight inpatient polysomnograhy test to determine the prevalence of sleep apnea (AHI ≥ 5 events /h) and nocturnal hypoxia (oxygen saturation (SaO2) below 90% for ≥12% of the nocturnal monitoring time). Patients were stratified according to their estimated glomerular filtration rate (eGFR) at the time of the study visit into three groups as follows: CKD stage 2 (eGFR 60 to 89 mL/min/1.73 m2) (control group), CKD stages 3 and 4 (eGFR 15 to 59 mL/min/1.73 m2), and CKD stage 5 (eGFR less than 15 mL/min/1.73 m2). eGFR was calculated using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation. Out of the 45 patients included in our study with the full spectrum of kidney function, ranging from those with eGFR 60 to 89 ml/min./1.73m2 to patients with eGFR less than 15 ml/min./1.73m2, 15 (33.3%) had sleep apnea (Mean AHI; 8.71±5.86). Our study found that prevalence of sleep apnea increased as kidney function declined (Group (I), 20%; Group (II), 36.4%; Group (III), 37.5%). Furthermore, severity of sleep apnea increased as kidney function declined (Group (I), mean AHI: 5.75±0.35; Group (II), mean AHI: 6±1.38; Group (III), mean AHI: 10.6±7.04). We also found that prevalence of nocturnal hypoxia which is characteristically associated with sleep apnea was greater among groups (II) and (III) (27.3% and 16.7%, respectively) than in group (I) (10%). Severity of nocturnal hypoxia increased as kidney function declined (Group (I), 13%; Group (II), 13.6±1.22%; Group (III), 16.75±3.30%). Overall, 8 out of the 45 studied CKD patients (17.8%) had nocturnal hypoxia (Mean SaO2 below 90% for ≥12% of the nocturnal monitoring time; 15.1±2.87%). Our study revealed that as kidney function declined, Apnea/Hypopnea (AHI) indices increased, oxygen desaturation indices increased, minimal peripheral capillary oxygen saturation values decreased, peripheral capillary oxygen saturation time less than 90% increased, and snore indices increased. Also, respiratory distress index (RDI) was higher among groups (II) and (III) than in group (I). However, only differences between groups as regards respiratory distress events, respiratory distress indices, snore events, and snore indices were statistically significant. These results show that as kidney function declines, several respiratory parameters deteriorate during sleep. In addition, wake events and indices, and sleep stage 1 (%) increased as kidney function deteriorated. Sleep efficiency (%) was highest among group (I) patients and lower among groups (II) and (III), Light sleep (%) was lowest among group (I) patients and higher among groups (II) and (III), and deep sleep (%) was highest among group (I) patients and lower among groups (II) and (III). It is clear from the above results that as kidney function declines, sleep efficiency deteriorates, wake indices increase, light sleep (%) increases, and deep sleep (%) decreases. We concluded that prevalence and severity of sleep apnea in patients with CKD increase as kidney function declines. Almost 18% of patients with CKD experience nocturnal hypoxia, which may contribute to loss of kidney function.


2021 ◽  
Vol 9 (3) ◽  
pp. 52-61
Author(s):  
R. V. Royuk ◽  
S. K. Yarovoy

Introduction. Chronic kidney disease (CKD) is commonly diagnosed in patients with cardiovascular diseases (CVDs) and also manifests itself in most patients with urolithiasis. Numerous studies have shown that renal dysfunction is not only directly related to the high risk of developing various CVDs and chronic heart failure (CHF) as one of the most common complications but also the mortality rate in comorbid patients. CKD and CHF have similar pathogenetic mechanisms and common target organs; co-existing, both pathological conditions accelerate the progression of major diseases and significantly aggravate their course. In patients with recurrent nephrolithiasis combined with CVDs, all the causes leading to the formation of CKD (recurrent obstructive pyelonephritis, nephroangiosclerosis, etc.) are present to some extent.Purpose of the study. To evaluate the incidence and characteristics of CKD in patients suffering from recurrent urolithiasis associated with CVDs.Materials and methods. The prospective study included 406 patients who were treated for recurrent nephrolithiasis and concomitant CVDs from 2007 to 2020 (Urology Division, Burdenko Principal Military Clinical Hospital). From long-term follow-up respondents who lived at least 10 years after inclusion in the study (n = 52), three groups were formed: group I (n = 18) included patients with a combination of essential hypertension (EH) and ischemic heart disease (IHD), complicated by CHF; group II (n = 15) consisted of patients with uncomplicated CVDs (EH – 7 patients, IHD – 8 patients). The control group III (n = 19) included respondents suffering from nephrolithiasis without CVDs. The glomerular filtration rate (GFR) was determined by the CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration) following the Russian National Guidelines for «Chronic Kidney Disease». The analysis of the obtained data was carried out using Statistica 8.0; the Fisher and Wilcoxon criteria were calculated; the differences were considered significant at p < 0.05.Results. All patients included in the study were repeatedly hospitalized urgently and as planned and underwent at least one non-invasive manipulation or surgery. The average age of the patients was 58.9 ± 2.95 years; men predominated (~ 75 – 78%). A GFR decrease was recorded in 41.1% of patients included in the study, in 40.5% of patients with a combination of nephrolithiasis and uncomplicated CVDs, Also, its decrease was found in 60 (58.8%) of patients with chronic heart failure (CHF) in 41.1% of cases from the general sample and 40.5% of patients without CHF. CKD stage II occurred in 44 (43.1%) cases of CHF; CKD stages III Ca and Cb were detected in 10 (9.8%) and 4 (1%) cases, respectively; CKD stage IV developed in 1 (0.25%) patient with one of the re-hospitalizations. Of the 52 patients included in the second study part, the ratio of men and women was 41/11 (78.8 and 21.2%, respectively). All three groups were also dominated by men. The initial values of GFR in group I patients significantly differed from those in the control group; in group II, statistically significant differences appeared 4 years after the s the study initiation, and in group I – after 2 years. A sharp (1.5-fold) significant decrease in renal filtration function was registered in group I by the 6th research year, in group II (1.3-fold) – by the 8th research year, and in group III (1.28-fold) – only by the 10th research year. The GFR level in group I and group II decreased during the 1st follow-up year by 2.36 and 1.65 times, respectively.Conclusion. CKD in patients suffering from recurrent nephrolithiasis in combination with IHD and EH is generally benign. The progression rate of filtration deficiency is relatively low and is (at least in the early stages) about 4.5 ml/min per year. The addition of CHF increases the rate of decline in renal filtration function by up to 25% (from 4 ml/min per year to 5 ml/min per year). The main negative effect of concomitant CVDs (especially complicated CHF) is not an ultrahigh decrease in GFR but a reduction in kidney functioning stable period up to complete cessation.


2021 ◽  
Vol 25 (6) ◽  
pp. 87-92
Author(s):  
A. M. Mambetova ◽  
D. V. Bizheva ◽  
I. K. Thabisimova

BACKGROUND. Natriuretic peptides have cardio- and renoprotective effects, inhibiting inflammatory and proliferative processes. The role of natriuretic peptides in the early diagnosis and characterization of chronic kidney disease (CKD) and cardiovascular complications as the disease development and progresses has not been studied.TNEAIM: to study the level of natriuretic peptides in children depending on the stage of CKD development and to assess the significance of this indicator.PATIENTS AND METHODS. The study involved 93 children with congenital diseases of the urinary system at the age from 3 to 18 years. Three groups were identified: group I - 54 patients with CKD stage I , group II - 29 patients with CKD stage II; Group III - 10 children with CKD stages IV-V (patients with CKD stages IV and V were combined due to their small amount). Control group - 10 clinically healthy children of the corresponding age. The N-terminal propeptide of natriuretic hormone (NT-proBNP) was determined in the blood by the enzyme-linked immunosorbent assay.RESULTS. An increase in the level of NT-proBNP by 28.7% takes place already in the early stages of CKD. With the progression of CKD, an increase in the level of NT-proBNP was noted from 57.4 % in children in the group of patients with stage I CKD to 80 % in children in group III patients. The maximum concentrations of NT-proBNP, many times higher than those in CKD stages I and II, were observed in children with CKD stages IV-V. The degree of increase in the level of NT-proBNP correlated with the severity of CKD.CONCLUSION. In the diagnosis and characterization of CKD and cardiorenal syndrome in children, the determination of the level of natriuretic peptides is of great importance. A high level of natriuretic peptides characterizes the presence of cardiorenal relationships and can be used as an additional criterion for assessing the severity of CKD, including at the early stages of its development.


2020 ◽  
Vol 28 (3) ◽  
pp. 230949902091612
Author(s):  
Allyson N DiMagno ◽  
Inaya Hajj-Hussein ◽  
Amjad El Othmani ◽  
Jordan Stasch ◽  
Zain Sayeed ◽  
...  

Introduction: In the United States, chronic kidney disease (CKD) affects roughly 11% of the population or 19.2 million people. As the prevalence of CKD and demand for total joint arthroplasty (TJA) continue to rise, it is critical to assess the impact of CKD on postoperative clinical and economic outcomes. Methods: Discharge data from 2006 to 2011 National Inpatient Sample were used for this study. A total of 851,150 TJA patients were divided into three cohorts: group 1 included no CKD, CKD stage I, and CKD stage II; group 2 included CKD stage III and stage IV; group 3 included CKD stage V. Inverse probability of treatment weighting/propensity score weighting was used to predict outcome variables as a function of age, sex, and Elixhauser comorbidities. Patients were compared against group I for in-hospital postoperative outcomes. Results: Stage III/IV CKD patients undergoing primary TJA had higher odds of any complication (odds ratio (OR), 2.63; p < 0.0001), longer length of stay (LOS), and higher total charge (LOS, 4.34 vs. 3.48 days; total charge, US$56,003 vs. US$46,115; p < 0.0001) when compared to patients with no CKD/stage I or II. Similarly, stage V CKD patients undergoing primary TJA had higher odds of any complication (OR, 1.64; p < 0.0001), longer LOS, and higher total charges (LOS, 5.81 vs. 3.48 days; total charge, US$59,869 vs. US$46,115) than their counterparts with no CKD/stage I or II CKD. Discussion: Our results indicate that stage III, IV, or V CKD, compared with those with no CKD, stage I or II patients are at a greater risk for postoperative complications and consume more resources following TJA.


2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Malgorzata Kepska ◽  
Inga Chomicka ◽  
Ewa Karakulska-Prystypiuk ◽  
Agnieszka Tomaszewska ◽  
Grzegorz Basak ◽  
...  

Abstract Background and Aims Chronic kidney disease (CKD) and acute kidney injury (AKI) are common complications of hematopoietic stem cell transplantation (HSCT) associated with increased morbidity and mortality. On the other hand, presence of CKD is often used as an exclusion criterion when selecting patients who undergo HSCT, especially when fludarabine in conditioning or GVHD prophylaxis with a calcineurin inhibitor is contemplated. There is also no threshold (CKD stage, level of serum creatinine etc) below which patients should not undergo allogeneic HSCT. Kidney function in patients undergoing HSCT is frequently worsened by previous chemotherapy and exposure to a variety of nephrotoxic drugs. Several biomarkers were widely investigated for early diagnosis of acute kidney injury, including neutrophil gelatinase associated lipocalin (NGAL), urinary liver-type fatty acid-binding protein (uL-FABP) and others, however, in patients undergoing HSCT, the published literature is exceptionally scarce. A few studies with inconclusive results stress the knowledge gap and need for further research. The aim of the study was to assess biomarkers of kidney injury in patients at least 3 months after HSCT (to avoid the effect of calcineurin inhibitors) under ambulatory care of Hematology, Oncology and Internal Medicine Department, University Teaching Hospital. Method We studied 80 prevalent patients after allogeneic HSCT and 32 healthy volunteers to obtained normal ranges for biomarkers. In this cross-sectional study following biomarkers of kidney injury in urine were evaluated: IGFBP-7/TIMP2 (insulin growth factor binding protein-7/, tissue inhibitor of metalloproteinases-2), netrin-1, semaphorin A2 using commercially available assays. Results All the biomarkers studied were significantly higher in patients after HSCT when compared to healthy volunteers (all p&lt;0.001). When we divided patients according to kidney function (below and over 60 ml./min/1.72m2), we found that only concentration of IGFBP-7 was significantly higher in 23 patients with CKD stage 3 (i.e. eGFR below 60ml.min/1.72m2) relative to patients with eGFR over 60 ml.min.1.72m2. All biomarkers in both subgroups of patients with eGFR below and over 60 ml./min/1.72m2 were significantly higher relative to healthy volunteers. In univariate correlations sempahorinA2 was related to netrin 1 (r=0.47, p&lt;0.001), IGFBP7 (r=0.35, p&lt;0.01), TIMP2 (r=0.32, p&lt;0.01), whereas IGFBP7 was positively related to serum creatinine (r=0.38, p&lt;0.001) and inversely to eGFR (r=-0.36, p&lt;0.001). Conclusion Concluding, patients after allogeneic HSCT despite normal or near normal kidney function show evidence of kidney injury, which might be due to comorbidities, previous chemotherapy, conditioning regimen,complement activation, calcineurin therapy after HSCT, other possible nephrotoxic drugs etc. Nephroprotective strategies are to be considered as chronic kidney disease is a risk factor for increased morbidity and mortality in this vulnerable population.


2021 ◽  
Vol 10 (8) ◽  
pp. 1556
Author(s):  
Suk Hyung Choe ◽  
Hyeyeon Cho ◽  
Jinyoung Bae ◽  
Sang-Hwan Ji ◽  
Hyun-Kyu Yoon ◽  
...  

We aimed to evaluate whether the duration and stage of acute kidney injury (AKI) are associated with the occurrence of chronic kidney disease (CKD) in patients undergoing cardiac or thoracic aortic surgery. A total of 2009 cases were reviewed. The patients with postoperative AKI stage 1 and higher stage were divided into transient (serum creatinine elevation ≤48 h) or persistent (>48 h) AKI, respectively. Estimated glomerular filtration rate (eGFR) values during three years after surgery were collected. Occurrence of new-onset CKD stage 3 or higher or all-cause mortality was determined as the primary outcome. Multivariable Cox regression and Kaplan–Meier survival analysis were performed. The Median follow-up of renal function after surgery was 32 months. The cumulative incidences of our primary outcome at one, two, and three years after surgery were 19.8, 23.7, and 26.1%. There was a graded significant association of AKI with new-onset CKD during three years after surgery, except for transient stage 1 AKI (persistent stage 1: HR 3.11, 95% CI 2.62–4.91; transient higher stage: HR 4.07, 95% CI 2.98–6.11; persistent higher stage: HR 13.36, 95% CI 8.22–18.72). There was a significant difference in survival between transient and persistent AKI at the same stage. During three years after cardiac surgery, there was a significant and graded association between AKI stages and the development of new-onset CKD, except for transient stage 1 AKI. This association was stronger when AKI lasted more than 48 h at the same stage. Both duration and severity of AKI provide prognostic value to predict the development of CKD.


2021 ◽  
Vol 156 (Supplement_1) ◽  
pp. S154-S154
Author(s):  
A S Boraik ◽  
M Abdelmonem ◽  
M Shedid ◽  
H M Abd Elaal ◽  
A Elhusseny ◽  
...  

Abstract Introduction/Objective Chronic kidney disease (CKD) is affecting about 14% of the general population. CKD is associated with a decrease in calcium level in the body. In the early stages of (CKD), dialysis may not be needed. The late stages of CKD will require dialysis or a kidney transplant to save a life. Secondary hyperparathyroidism is a crucial disorder in CKD patients. It explains why the illness causes a significant change in bone and mineral metabolism. This study aims to study renal hyperparathyroidism (rHPT) in dialysis patients with late-stage of chronic kidney disease (CKD). Methods/Case Report A total of 55 subjects were enrolled in this study for late-stage dialysis patients from Egypt. Serum creatinine and PTH levels were measured. Among the 55 subjects; 41 subjects (74.5%) were males, 14 subjects (25.5%) were females with a mean age of 52.7 and 34.3 years for males and females, respectively. Subjects were divided into two groups; Study group I consists of 33 dialysis patients; three patients were females (9%) while 30 patients were males (91%), and control group II consists of 22 healthy individuals, 11 subjects were females (50%), and 11 subjects were males (50%). Results (if a Case Study enter NA) In our study, in comparison between two groups as regards blood investigations. The means of creatinine and PTH in the study group I were 8.93 mg/dl and 316.8, while in the control group II were 0.9, and 38.4 respectively. Comparing the two groups shows that mean of Creatinine and PTH in the study group was statistically significantly higher than the control group (p-value less than 0.001). Conclusion In patients with CKD, accurate measurement of (PTH) is critical for treatment decision-making to reduce the risk of bone and cardiovascular diseases. We recommend that patients with diabetes and high blood pressure be aware that they must take their medications consistently to avoid kidney problems.


Author(s):  
Gulsah Sasak ◽  
Banu Isbilen Basok ◽  
Semih Basci ◽  
Abdulkadir Kocanoglu ◽  
Ali Bakan ◽  
...  

The incidence and prevalence of obesity are increasing rapidly throughout the world. Various methods have been developed to evaluate obesity. A body shape index (aBSI) is based on waist circumference adjusted for height and weight. High BSI values have been found to be associated with early mortality. It is known that obesity is associated with inflammation and cardiovascular diseases. In this study, we examined the relationship between aBSI, inflammatory markers such as C-reactive protein and interleukin-6 and cardiovascular disease in patients with stage 3-4 chronic kidney disease. Methods. One hundred twenty patients were enrolled in this cross-sectional observational study. The mean aBSI value was 0.0870. Patients were divided into 2 groups according to the mean value of aBSI as there is no currently defined cut-off value for BSI. Those with aBSI ≤ 0.087 were allocated to group I, and those with aBSI> 0.0870 to group II. Results. Patients in group II had more cardiovascular disease than in group I. In partial Spearman correlation analysis, the presence of cardiovascular disease was correlated with aBSI (r = 0.36, p = 0.0001). aBSI higher than 0.0986 predicted cardiovascular disease in our cohort: the area under the curve (CI 95%) for aBSI was 0.715 (0.602-0.829). Conclusions. The relationship between aBSI and inflammation could not be shown. But we found that high aBSI is associated with increased cardiovascular disease. Further studies are needed to recommend the routine clinical use of aBSI as a cardiovascular disease marker.


2020 ◽  
Vol 7 (2) ◽  
pp. 45-52
Author(s):  
Dineshowri Shrestha ◽  
Anil Baral ◽  
Kashyap Dahal ◽  
Juju Raj Shrestha ◽  
Rajani Hada

Introduction: Hyperuricemia is a cause and effect of chronic kidney disease (CKD), accelerates its progression and predisposes to acute kidney injury. Present study aimed to find out the outcome of Febuxostat treatment in hyperuricemic pre-dialysis CKD patients. Method: This was a cross sectional study conducted in Nephrology department, Bir hospital, Nepal, during from February 2019 to January 2020, among pre-dialysis CKD stage 3-5 non dialysis (ND) patients with serum uric acid (SUA) >7 mg/d L who were treated with Febuxostat 40 mg once a day and followed up at one, two and three months. The baseline SUA, creatinine, estimated glomerular filtration rate (eGFR) calculated by the modification of diet in renal disease (MDRD) equation compared with values at follow up and according to CKD stages. The adverse effects and liver enzymes were recorded. Result: There were total 50 patients, mean age 54.2±16.5 years, male 31 (62%).There were significant reductions of SUA from baseline of 8.9±1.4to 7.1±1.2 vs 5.9±0.9 vs 4.7±1.0) at one, two and three month respectively, p=0.000 and increment of eGFR (ml/min/1.73m2) from 29.6±15.0 to 31.6±16.0, 33.6±16.6, 34.1±17.1, p=0.000.And 41 (82%) patients achieved uric acid < 6 mg/dl at three month. Significant reduction of uric acid in all CKD stages and increment of eGFR in CKD stage 3 and 4 were observed. Adverse effects were epigastralgia in 5 (10%) and joint pain in 13 (26%). Conclusion: Febuxostat is an effective serum uric acid lowering drug in pre-dialysis chronic kidney disease patients with improvement of kidney function.


2020 ◽  
Vol 14 (3) ◽  
pp. 155798832091725
Author(s):  
Jeong Kyun Yeo ◽  
Ho Seok Koo ◽  
Jihyeong Yu ◽  
Min Gu Park

Testosterone deficiency (TD) is common and impairs quality of life (QoL) in patients with chronic kidney disease (CKD). However, there are no studies about whether testosterone replacement therapy (TRT) can improve QoL in patients with CKD. Therefore, we investigated the effect of TRT on the QoL of patients with CKD and confirmed the safety of TRT. Twenty-five male patients with stages III–IV CKD whose serum testosterone levels were <350 ng/dl (TD) were enrolled and treated with testosterone gel for 3 months (group II). Age-matched controls with stages III–IV CKD and TD (group I) were recommended to exercise for the same period. Before and after the treatment, the BMI and handgrip strength were checked, serological tests were performed, and questionnaires were administered in both groups. Compared to baseline, there was no significant difference in serum testosterone levels, scores of the 36-Item Short Form Health Survey (SF-36), Aging Males’ Symptoms Scale (AMS), and International Prostate Symptom Score (IPSS), and grip strength in group I after 3 months. In group II, a significant increase in testosterone, hemoglobin (Hb), and hematocrit (Hct) was observed, and grip strength significantly increased after TRT. Significant improvement in scores of SF-36, AMS, and IPSS was also confirmed after TRT in group II. There was a significant difference in testosterone, Hb, Hct, grip strength, and scores of SF-36, AMS, and IPSS between the two groups after 3 months. The patients in group II showed positive results and continued with TRT. Therefore, we conclude that TRT safely improves the QoL and TD symptoms in patients with moderate-to-severe CKD.


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