scholarly journals Acute Kidney Injury Post-Percutaneous Nephrolithotomy (PNL): Prospective Outcomes from a University Teaching Hospital

2021 ◽  
Vol 10 (7) ◽  
pp. 1373
Author(s):  
Sunil Pillai ◽  
Akshay Kriplani ◽  
Arun Chawla ◽  
Bhaskar Somani ◽  
Akhilesh Pandey ◽  
...  

Acute Kidney Injury (AKI) after percutaneous nephrolithotomy (PNL) is a significant complication, but evidence on its incidence is bereft in the literature. The objective of this prospective observational study was to analyze the incidence of post-PNL AKI and the potential risk factors and outcomes. Demographic data collected included age, gender, body mass index (BMI), comorbidities (hypertension, diabetes mellitus), and drug history—particularly angiotensin converting enzyme inhibitors (ACE inhibitors), angiotensin II receptor blockers and beta blockers. Laboratory data included serial serum creatinine measured pre- and postoperation (12, 24, and 48 h), hemoglobin (Hb), total leucocyte count (TLC), Prothrombin time (PT), serum uric acid and urine culture. Stone factors were assessed by noncontrast computerized tomography of kidneys, ureter and bladder (NCCT KUB) and included stone burden, location and Hounsfield values. Intraoperative factors assessed were puncture site, tract size, tract number, operative time, the need for blood transfusion and stone clearance. Postoperative complications were documented using the modified Clavien–Dindo grading system and patients with postoperative AKI were followed up with serial creatinine measurements up to 1 year. Among the 509 patients analyzed, 47 (9.23%) developed postoperative AKI. Older patients, with associated hypertension and diabetes mellitus, those receiving ACE inhibitors and with lower preoperative hemoglobin and higher serum uric acid, had higher incidence of AKI. Higher stone volume and density, staghorn stones, multiple punctures and longer operative time were significantly associated with postoperative AKI. Patients with AKI had an increased length of hospital stay and 17% patients progressed to chronic kidney disease (CKD). Cut-off values for patient age (39.5 years), serum uric acid (4.05 mg/dL) and stone volume (673.06 mm3) were assessed by receiver operating characteristic (ROC) curve analysis. Highlighting the strong predictors of post-PNL AKI allows early identification, proper counseling and postoperative planning and management in an attempt to avoid further insult to the kidney.

2012 ◽  
Vol 78 (6) ◽  
pp. 796-799 ◽  
Author(s):  
A. Ahsan Ejaz ◽  
Bhagwan Dass ◽  
Ganesh Kambhampati ◽  
Noel I. Ejaz ◽  
Natallia Maroz ◽  
...  

2017 ◽  
Vol 8 (5) ◽  
pp. 529-536 ◽  
Author(s):  
Kai Hahn ◽  
Mehmet Kanbay ◽  
Miguel A. Lanaspa ◽  
Richard J. Johnson ◽  
A. Ahsan Ejaz

2012 ◽  
Vol 25 (4) ◽  
pp. 497-505 ◽  
Author(s):  
A. Ahsan Ejaz ◽  
Ganesh Kambhampati ◽  
Noel I. Ejaz ◽  
Bhagwan Dass ◽  
Vijay Lapsia ◽  
...  

2020 ◽  
Vol 7 ◽  
pp. 205435812097738
Author(s):  
Jean Maxime Côté ◽  
Arline-Aude Bérubé ◽  
Guillaume Bollée

Background: Urate nephropathy is a rare cause of acute kidney injury. Although most risk factors are associated with chemotherapy, tumor lysis syndrome or rhabdomyolysis, occurrence following severe seizure has also been reported. Uric acid measurement following convulsion is rarely performed and, therefore, the incidence of hyperuricemia in this context is unknown. Objective: The objective is to present a case of urate nephropathy following generalized tonic-clonic seizure (GTCS) and to investigate the kinetics of serum uric acid and creatinine levels in a series of patients admitted for severe seizures. Design: Retrospective case report and prospective case series. Setting: Emergency room department and neurology unit of a tertiary care hospital. Patients: The study included 13 hospitalized patients for severe GTCS. Measurements: Type, timing, and duration of seizure episodes were documented. Demographic data, weight, hypouricemic therapy, and baseline serum creatinine were recorded. Blood samples (uric acid, creatinine, blood gas, lactate, and creatinine kinase) and urine samples (uric acid, creatinine, and dipstick) were prospectively collected at Day 0, 1, 2, and 3 following the GTCS episode. Methods: We identified and described one rare case of urate nephropathy following GTCS. Then, we presented the kinetic of uric acid and creatinine levels and the acute kidney injury incidence over the follow-up period. All analyses were using descriptive statistics. Results: During the study period, 13 patients with a median tonic-clonic seizure duration of 5.0 minutes (interquartile range [IQR], 2.0–12.5) were included. From day 0 to day 3, the median serum uric acid level decreased from 346.0 µmol/L (IQR, 155.0–377.5) to 178.0 µmol/L (IQR, 140.0–297.5) and median serum creatinine from 73.0 µmol/L (IQR, 51.0–80.0) to 57.0 µmol/L (IQR, 44.0–70.0). Acute kidney injury occurred in four patients. Limitations: This is a single-center observational study with small sample size, which does not allow us to demonstrate causality between the increase of uric acid levels observed and the occurrence of acute kidney injury. A delay between the first sampling and seizure episodes was observed and could explain the limited increase of uric acid levels captured. Conclusions: There is a signal for an acute increase of uric acid levels following a severe seizure before returning to baseline within 3 days. During that period, there might be an increased risk of acute kidney injury, although these changes seem to be usually mild and reversible. Our findings suggest that routine serum uric acid measurement in patients presenting with GTCS could help to identify those patients at risk of developing acute kidney injury as a result of acute hyperuricemia. Further larger studies are required to confirm the effectiveness of such screening in acute kidney injury prevention. Trial Registration: As an observational noninterventional study, no registration was required.


2019 ◽  
Vol 8 (4) ◽  
pp. 468 ◽  
Author(s):  
Na Young Kim ◽  
Jung Hwa Hong ◽  
Dong Hoon Koh ◽  
Jongsoo Lee ◽  
Hoon Jae Nam ◽  
...  

Postoperative acute kidney injury (AKI) is still a concern in partial nephrectomy (PN), even with the development of minimally invasive technique. We aimed to compare AKI incidence between patients with and without diabetes mellitus (DM) and to determine the predictive factors for postoperative AKI. This case-matched retrospective study included 884 patients with preoperative creatinine levels ≤1.4 mg/dL who underwent laparoscopic or robot-assisted laparoscopic PN between December 2005 and May 2018. Propensity score matching was employed to match patients with and without DM in a 1:3 ratio (101 and 303 patients, respectively). Of 884 patients, 20.4% had postoperative AKI. After propensity score matching, the incidence of postoperative AKI in DM and non-DM patients was 30.7% and 14.9%, respectively (P < 0.001). In multivariate analysis, male sex and warm ischemia time (WIT) >25 min were significantly associated with postoperative AKI in patients with and without DM. In patients with DM, hemoglobin A1c (HbA1c) >7% was a predictive factor for AKI, odds ratio (OR) = 4.59 (95% CI, 1.47–14.36). In conclusion, DM increased the risk of AKI after minimally invasive PN; male sex, longer WIT, and elevated HbA1c were independent risk factors for AKI in patients with DM.


2016 ◽  
Vol 2016 ◽  
pp. 1-3 ◽  
Author(s):  
Can Huzmeli ◽  
Eylem Eliacik ◽  
Mustafa Saglam ◽  
Baris Doner ◽  
Ferhan Candan

The tumor lysis syndrome (TLS) is a collection of metabolic abnormalities that occur in consequence of the release of intracellular contents following lysis of tumor cells. TLS occurs spontaneously or after chemotherapy. Spontaneous TLS is uncommon occurrence in multiple myeloma (MM). We define a case of a 70-year-old woman patient who was found to have MM with spontaneous TLS, following a compression fracture of the T-12 vertebrae. While serum uric acid and phosphorous levels were high, low calcium levels were identified. There were also acute kidney injury and metabolic acidosis. Upon the diagnosis of TLS, she was treated with hydration, allopurinol, sodium bicarbonate, and calcium gluconate. The improvement of her laboratory data was observed. We submitted this case in order to draw attention to the presentation of MM with spontaneous TLS.


2021 ◽  
Vol 59 (1) ◽  
pp. 103-107
Author(s):  
L. N. Yeliseyeva ◽  
V. P. Kurinnaya ◽  
O. N. Ponkina ◽  
I. V. Semizarova ◽  
Z. A. Baste

The article presents a description of two own observations of the development of acute urate nephropathy in women with asymptomatic hyperuricemia. Clinical data and the results of additional laboratory and instrumental studies are presented; in one of the observations, the morphological picture of intravital biopsy material against the background of prolonged use of diuretics is described. The second case characterizes tophus kidney damage (according to the pathological examination data) without characteristic clinical manifestations of gout in vivo. The authors draw attention to the need to study serum uric acid levels in all cases of acute kidney injury.


2021 ◽  
Vol 33 (1) ◽  
Author(s):  
Mir Nadeem ◽  
Bilal Ahmad Mir ◽  
Mir Waseem ◽  
Tabinda Ayub Shah ◽  
Rameez Raja

Abstract Background Early management of sepsis in the emergency department improves patient outcomes. The identification of at-risk patients for aggressive management by an easily available biomarker could go a long way in the triage of patients in the emergency department. It is postulated that during sepsis, the majority of patients undergo ischaemic reperfusion injury or inflammation, and uric acid with its oxidant and antioxidant properties may be playing some role and, hence, the measurement of uric acid could possibly predict the hospital course in patients with sepsis. We were prompted to undertake this study as serum uric acid estimation is readily available and economical compared to newly evolving biomarkers in sepsis. Estimation of serum uric acid levels on arrival to the emergency department may prove a useful predictor of hospital outcome in patients with sepsis especially in regions with limited resources. Results Of 102 patients, 55 (53.9%) were males. The mean age of the study cohort was 63.2 ± 10.48. Patients with higher qSOFA scores had higher uric acid levels on admission. While 12 (11.8%) patients had a septicaemic shock, acute kidney injury was recorded in 48 (47.1%) patients and 11 (10.8%) patients required dialysis. Thirty-four (33.3%) patients had respiratory failure, and of these, 21 (20.6%) patients required mechanical ventilation. The overall median stay in the medical intensive care (MICU) was 3days (range 2–7 days). The patients with higher uric acid levels had higher rates of respiratory failure but did not reach significant levels. In 15 (14.7%) patients, 7 males expired (mortality rate of 14.7%). There was a significant association between SOFA score and mortality. Patients who succumbed to sepsis had higher serum uric acid levels on arrival. Conclusions Patients with higher qSOFA scores had higher uric acid levels on admission. Hyperuricaemia predicted acute kidney injury, a requirement of mechanical ventilation and mean hospital stay in patients with sepsis. Further studies may be required to confirm the association.


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