scholarly journals Predictors of Postoperative Acute Renal Failure after Noncardiac Surgery in Patients with Previously Normal Renal Function

2007 ◽  
Vol 107 (6) ◽  
pp. 892-902 ◽  
Author(s):  
Sachin Kheterpal ◽  
Kevin K. Tremper ◽  
Michael J. Englesbe ◽  
Michael O’Reilly ◽  
Amy M. Shanks ◽  
...  

Background The authors investigated the incidence and risk factors for postoperative acute renal failure after major noncardiac surgery among patients with previously normal renal function. Methods Adult patients undergoing major noncardiac surgery with a preoperative calculated creatinine clearance of 80 ml/min or greater were included in a prospective, observational study at a single tertiary care university hospital. Patients were followed for the development of acute renal failure (defined as a calculated creatinine clearance of 50 ml/min or less) within the first 7 postoperative days. Patient preoperative characteristics and intraoperative anesthetic management were evaluated for associations with acute renal failure. Thirty-day, 60-day, and 1-yr all-cause mortality was also evaluated. Results A total of 65,043 cases between 2003 and 2006 were reviewed. Of these, 15,102 patients met the inclusion criteria; 121 patients developed acute renal failure (0.8%), and 14 required renal replacement therapy (0.1%). Seven independent preoperative predictors were identified (P < 0.05): age, emergent surgery, liver disease, body mass index, high-risk surgery, peripheral vascular occlusive disease, and chronic obstructive pulmonary disease necessitating chronic bronchodilator therapy. Several intraoperative management variables were independent predictors of acute renal failure: total vasopressor dose administered, use of a vasopressor infusion, and diuretic administration. Acute renal failure was associated with increased 30-day, 60-day, and 1-yr all-cause mortality. Conclusions Several preoperative predictors previously reported to be associated with acute renal failure after cardiac surgery were also found to be associated with acute renal failure after noncardiac surgery. The use of vasopressor and diuretics is also associated with acute renal failure.

2000 ◽  
Vol 84 (10) ◽  
pp. 565-570 ◽  
Author(s):  
Laura Zingaro ◽  
Cristiana Catena ◽  
Sergio De Marchi ◽  
Leonardo Sechi

SummaryIncreased plasma fibrinogen levels and hemostatic abnormalities suggestive of a prothrombotic state are present in patients with endstage renal failure and could contribute to increased cardiovascular morbidity in these patients. We investigated the relationship between abnormalities of the hemostatic system and the degree of renal failure and whether these abnormalities are associated with increased prevalence of cardiovascular events in patients with arteriolar nephrosclerosis. In 425 patients recruited at a hypertension clinic we assessed the renal function by creatinine clearance, urinary protein excretion, and microalbuminuria, the prevalence of atherosclerotic disease, and measured prothrombin time, activated partial thromboplastin time, fibrinogen, prothrombin fragment 1+2 (F1+2), D-dimer, and antithrombin. Early impairment of renal function (creatinine clearance, 30 to 89 ml/min per 1.73 m2 of body surface area) caused by arteriolar nephrosclerosis was found in 172 patients. Patients with early renal failure were significanly older and had significantly greater values of blood pressure, plasma fibrinogen, F1+2, and D-dimer than patients with normal renal function. Elevated D-dimer and fibrinogen levels were independently associated with the presence of decreased creatinine clearance. Log fibrinogen, log F1+2, and log D-dimer were inversely correlated with creatinine clearance. The prevalence of coronary artery, cerebrovascular, and peripheral vascular disease was significantly greater in patients with mild renal failure than in those with normal renal function. Elevated levels of fibrinogen and D-dimer were associated with the presence of atherosclerotic disease independent of renal function and other risk factors. In conclusion, changes in hemostatic parameters occur early in the course of renal failure in patients with arteriolar nephrosclerosis, suggesting a prothrombotic state that may contribute to the risk for atherosclerotic disease at all levels of renal function.


2014 ◽  
Vol 2014 ◽  
pp. 1-3
Author(s):  
Ian Holmes ◽  
Nathaniel Berman ◽  
Vinicius Domingues

Phenazopyridine is a commonly used urinary analgesic available throughout the United States. Ingestion of large quantities can lead to methemoglobinemia, hemolytic anemia, jaundice, and acute renal failure. We report a case of a 78-year-old male with previously normal renal function who developed acute renal failure and jaundice without methemoglobinemia or hyperbilirubinemia after taking nearly 8 g of phenazopyridine over the course of 4 days. Initially presenting with oliguria, the urine output began to increase by day 2 of his admission, and the creatinine peaked 11 days after he began taking phenazopyridine, and he was discharged safely soon after. To our knowledge, this is the first such case of renal failure and jaundice without methemoglobinemia or hemolytic anemia in an adult patient with normal renal function.


2017 ◽  
Vol 102 (5-6) ◽  
pp. 227-232
Author(s):  
Annette Rebel ◽  
Laura C. Duling ◽  
Erin C. Maynard ◽  
Tyler A. Crisp ◽  
Zaki-Udin Hassan

Renal dysfunction before and after orthotopic liver transplantation (OLT) has significant implications for morbidity and mortality of these patients. We describe the management of a 72-year-old male patient with history of alcoholic liver cirrhosis (MELD 38) undergoing OLT. The patient presented with declining renal function prior to OLT (baseline GFR <25 mL/min) due to diuretic therapy for refractory ascites, hypovolemia postgastrointestinal bleed, and possible hepatorenal syndrome. The intraoperative management was complicated by preexisting anemia (hematocrit, 22%), unusual RBC antibody (anti-JKa) and significant surgical blood loss. To achieve surgical hemostasis, temporary clamping of the inferior vena cava (IVC) caudal to the transplanted liver was necessary. Postoperatively, the patient remained anuric despite appropriate fluid resuscitation. Renal replacement therapy was initiated to balance volume and acid-base status. A venogram on postoperative day (POD) 5 indicated a complete IVC occlusion and caval thrombectomy was performed on POD 6. After restoration of venous renal drainage, renal function improved and renal replacement therapy was weaned. Renal function indicators normalized in 8 weeks, and remained unimpaired up to 3 months post-OLT. Unintended complete obstruction of the suprarenal IVC may occur during OLT to control surgical bleeding, and should be considered as a cause for acute renal failure after liver transplant. Despite the preexisting renal dysfunction, renal function quickly improved after restoration of blood flow drainage and normalized in less than 8 weeks post obstruction.


Blood ◽  
2005 ◽  
Vol 106 (11) ◽  
pp. 4450-4450
Author(s):  
Marc A. Phillips ◽  
Tim R. Auton ◽  
Suzanne B. Ward ◽  
William B. Smith ◽  
Guhan Balan

Abstract Methotrexate (MTX) is used in high doses in the treatment of cancers such as NHLs, leukemias and osteosarcoma. In some patients it produces renal damage which delays its elimination from the body. Prolonged exposure to high concentrations of MTX results in serious toxic effects. Glucarpidase (Voraxaze™, formerly carboxypeptidase G2) contains a recombinant enzyme which rapidly and predictably breaks down MTX in the blood within 15 minutes of administration. Multiple studies to date have evaluated glucarpidase as an intervention for patients at risk or experiencing toxicities related to MTX overexposure. Continuing studies seek to evaluate the use of glucarpidase in a planned way to circumvent toxicity and prevent prolonged hospitalization. The current study examined the pharmacokinetics of glucarpidase in subjects who had both normal and severely impaired renal function, similar to that of the intended patient population. Methods: Twelve male and female subjects participated in this study; 8 with normal renal function (calculated creatinine clearance >80 mL/min) and 4 with severely impaired renal function (calculated creatinine clearance <30 mL/min). Each subject received a single intravenous dose of glucarpidase 50 units/kg (equivalent to 114.5 μg/kg), infused over 5 min. Serum glucarpidase profiles were evaluated for all subjects using 7 mL blood samples collected at the following time points: pre-dose (prior to start of glucarpidase IV dose), end of 5-minute infusion, and 0.25, 0.5, 1, 2, 4, 6, 8, 12, 18, 24, 48, 72, and 96 hours following the start of the infusion. The study protocol was approved by the Crescent City Institutional Review Board IRB (New Orleans, LA) and all subjects gave their written informed consent prior to inclusion in the study. Results: The mean (SD) Cmax for glucarpidase in renally impaired subjects was 2.9 μg/mL (0.83), the mean half-life was 10.0 (2.1) h and mean AUC0-∞ was 24.5(9.4) μg.h/mL. Similar values were found in subjects with normal renal function (mean Cmax 3.1 μg/mL, mean t1/2 9.0 h and mean AUC0-∞ 23.4 μg.h/mL). No adverse events were recorded in the study. Conclusions: The results indicated little effect of renal impairment on the serum pharmacokinetics of glucarpidase. Evaluations of adverse events, clinical laboratory assessments, vital signs, ECGs, and physical examinations indicated that a single 50 unit/kg dose of glucarpidase was safe and well-tolerated when administered to subjects with normal renal function and subjects with severe renal impairment. PK parameters found in this study may be relevant to cancer patients treated with 50 units/kg glucarpidase, including those with MTX-induced renal toxicity.


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