Altered lung physiology in two cohorts after COVID-19 infection as assessed by computed cardiopulmonography.

The longer-term effects of COVID-19 on lung physiology remain poorly understood. Here, a new technique, computed cardiopulmonography (CCP), was used to study two COVID-19 cohorts (MCOVID and C-MORE-LP) at both ∼6 and ∼12 mo after infection. CCP is comprised of two components.

Patient knowledge and adherence to maintenance hemodialysis: an International comparison study.

Background: Non-adherence to hemodialysis (HD) is associated with increased morbidity and mortality. In this cross-sectional study, we compared correlates and rates of non-adherence between the US and Japan to determine if differences in patient knowledge about HD might account for international variation in adherence.

Methods: We evaluated 100 US and 116 Japanese patients on maintenance HD.

Antineutrophil cytoplasmic antibody-positive pauci-immune glomerulonephritis associated with mantle cell lymphoma.

Renal involvement in non-Hodgkin lymphoma, especially mantle cell lymphoma (MCL) is rare. A 77-year-old man presented with acute kidney injury (AKI), which rapidly progressed to dialysis dependence. Kidney biopsy revealed patchy B-cell lymphocytic aggregates in the interstitium, which were positive for cyclin D1, consistent with atypical CD5-negative MCL as confirmed by the detection of translocation t(11;14) by FISH.

Saliva Urea Nitrogen Continuously Reflects Blood Urea Nitrogen after Acute Kidney Injury Diagnosis and Management: Longitudinal Observational Data from a Collaborative, International, Prospective, Multicenter Study.

Background: Acute kidney injury (AKI) is a growing global concern and often reversible. Saliva urea nitrogen (SUN) measured by a dipstick may allow rapid diagnosis. We studied longitudinal agreement between SUN and blood urea nitrogen (BUN) and the diagnostic performance of both.

Delirium in critically ill military patients following trauma: A cohort analysis.

Critically ill military trauma patients have been found to have a high incidence of psychological morbidity following their Intensive Care Unit (ICU) experience, including recall of significant auditory and visual hallucinations. It follows that this may be attributable to delirium, which has not been previously described in a young, previously fit population following trauma. The case-notes of 85 male patients (mean age 26 years), admitted to a single UK ICU following military trauma, were retrospectively assessed for delirium using DSM-IV criteria.

Disaster Preparedness and Awareness of Patients on Hemodialysis after Hurricane Sandy.

Background And Objectives: Patients with ESRD on dialysis live in a complex sociomedical situation and are dependent on technology and infrastructure, such as transportation, electricity, and water, to sustain their lives. Interruptions of this infrastructure by natural disasters can result in devastating outcomes.

Design, Setting, Participants, & Measurements: Between November of 2013 and April of 2014, a cross-sectional survey was conducted of patients who received maintenance hemodialysis before and after the landfall of Hurricane Sandy on October 29, 2012 in lower Manhattan, New York.

Successfully treated calcific uremic arteriolopathy: two cases of a high anion gap metabolic acidosis with intravenous sodium thiosulfate.

Calcific uremic arteriolopathy (CUA) is a rare and potentially fatal disorder of calcification involving subcutaneous small vessels and fat in patients with renal insufficiency. We describe the successful use of intravenous sodium thiosulfate (STS) for the treatment of CUA in two patients. The first case was complicated by the development of a severe anion gap metabolic acidosis, which was accompanied by a seizure.

Recommendations for the role of extracorporeal treatments in the management of acute methanol poisoning: a systematic review and consensus statement.

Objective: Methanol poisoning can induce death and disability. Treatment includes the administration of antidotes (ethanol or fomepizole and folic/folinic acid) and consideration of extracorporeal treatment for correction of acidemia and/or enhanced elimination. The Extracorporeal Treatments in Poisoning workgroup aimed to develop evidence-based consensus recommendations for extracorporeal treatment in methanol poisoning.

Hepatorenal syndrome treated for eight months with continuous-flow peritoneal dialysis.

The case documented here represents the longest course of continuous-flow peritoneal dialysis (PD) reported in the literature. A 61-year-old man with hepatorenal syndrome type 1 and ascites presented with hypotension and bright red blood per rectum and was found to be in acute renal failure with severe anemia. Continuous-flow PD was initiated, and the patient improved clinically.

Hemodialysis for the treatment of pulmonary hemorrhage from dabigatran overdose.

Dabigatran is an oral direct thrombin inhibitor indicated for thromboembolism prophylaxis in patients with nonvalvular atrial fibrillation. Since its approval in the United States in 2010, dabigatran-associated hemorrhages have garnered much attention because bleeding rates were higher than initially expected. Additionally, reversing anticoagulation remains challenging.

Extracorporeal treatment for thallium poisoning: recommendations from the EXTRIP Workgroup.

Background: The EXtracorporeal TReatments In Poisoning (EXTRIP) workgroup was formed to provide recommendations on the use of extracorporeal treatment (ECTR) in poisoning. To test and validate its methods, the workgroup reviewed data for thallium (Tl).

Methods: After an extensive search, the co-chairs reviewed the articles, extracted the data, summarized findings, and proposed structured voting statements following a predetermined format.

Continuous flow peritoneal dialysis: update 2012.

Continuous flow peritoneal dialysis (CFPD) is a technique of renal replacement therapy (RRT) dating back to the 1950s. Its essential features are a fixed intraperitoneal volume and rapid, continuous movement of dialysis solution into and out of the peritoneal cavity. Inlet and outlet catheters and a means of generating a large volume of sterile dialysate are required.

The EXTRIP (EXtracorporeal TReatments In Poisoning) workgroup: guideline methodology.

Extracorporeal treatments (ECTRs), such as hemodialysis and hemoperfusion, are used in poisoning despite a lack of controlled human trials demonstrating efficacy. To provide uniform recommendations, the EXTRIP group was formed as an international collaboration among recognized experts from nephrology, clinical toxicology, critical care, or pharmacology and supported by over 30 professional societies. For every poison, the clinical benefit of ECTR is weighed against associated complications, alternative therapies, and costs.

Uric acid levels and all-cause and cardiovascular mortality in the hemodialysis population.

Background And Objectives: Hyperuricemia is associated with hypertension, coronary artery disease, and chronic kidney disease. However, there are no specific data on the relationship of uric acid to cardiovascular disease in the chronic hemodialysis setting.

Design, Setting, Participants, & Measurements: Data from 5827 patients on chronic hemodialysis from six countries affiliated with the Dialysis Outcomes and Practice Patterns Study (DOPPS) were analyzed.

Intoxications amenable to extracorporeal removal.

Extracorporeal removal of drugs was first attempted in 1913, by John Jacob Abel. Previously known to be a rarity, dialysis and to a lesser extent hemoperfusion have now become obvious tools for nephrologists in treating life-threatening cases of poisoning. Moreover, for dialysis patients, dialysis along with chelation therapy for removal of aluminum, once known to be common in the United States, is resurging in some countries.

Nephrolithiasis: evaluation and management.

Nephrolithiasis is a major cause of morbidity involving the urinary tract. The prevalence of this disease in the United States has increased from 3.8% in the 1970s to 5.

The impact of residual renal function on hospitalization and mortality in incident hemodialysis patients.

Background/aims: Few data are available on the impact of residual renal function (RRF) on mortality and hospitalization in hemodialysis (HD) patients. The objective of our study was to compare clinical outcomes for HD patients with and without RRF.

Methods: In a cohort of 118 incident HD patients with RRF (n = 51) and without RRF (n = 67) who started dialysis in a single center, we recorded demographics, laboratory data, medication, hospitalizations and mortality.

Arteriovenous fistula toxicity.

The arteriovenous fistula (AVF) has been a mainstay of hemodialysis treatments and the preferred access route since its inception in the 1960s, due to its longevity and resistance to infection. However, the AVF is not benign. There is significant primary failure, as well as cardiac, vascular, and other, less well recognized, complications.

A quick and simple estimate of creatinine clearance.

Introduction: The 2 common estimates of renal function, the Cockcroft-Gault (C-G) and MDRD study equations, calculate glomerular filtration rate (GFR) as a function of serum creatinine. However, these equations require complex calculations and several parameters. We derived an equation to estimate creatinine clearance (eCCr) rapidly.

Clinical benefit of preserving residual renal function in dialysis patients: an update for clinicians.

Residual renal function (RRF) remains important even after beginning of dialysis. RRF contributes significantly to the overall health and well-being of patients on dialysis. It plays an important role in maintaining fluid balance, phosphorus control, nutrition, and removal of middle molecular uremic toxins and shows inverse relationships with valvular calcification and cardiac hypertrophy in patients on dialysis.

Relationship between proteinuria and venous thromboembolism.

Nephrotic syndrome is known to cause venous thromboembolism (VTE) due to urine loss of antithrombin III and activation of the coagulation system. We hypothesized that the degree of proteinuria may predict the development of VTE. This was a retrospective case-controlled study of in-patients urban academic teaching hospital from April, 2007 to March, 2009 and who had undergone an imaging study for VTE.

Decreased pulse pressure during hemodialysis is associated with improved 6-month outcomes.

Pulse pressure is a well established marker of vascular stiffness and is associated with increased mortality in hemodialysis patients. Here we sought to determine if a decrease in pulse pressure during hemodialysis was associated with improved outcomes using data from 438 hemodialysis patients enrolled in the 6-month Crit-Line Intradialytic Monitoring Benefit Study. The relationship between changes in pulse pressure during dialysis (2-week average) and the primary end point of non-access-related hospitalization and death were adjusted for demographics, comorbidities, medications, and laboratory variables.