Biomarkers in acute kidney injury
Published on: 20th July, 2020
OCLC Number/Unique Identifier: 8635214937
Acute kidney injury is a common condition associated with high morbidity and short-term mortality. Its pathophysiology varies according to the numerous conditions associated with its genesis. Biomarkers allow detecting changes at the level of kidney function; therefore, they play an important role in the prevention, early diagnosis, therapeutic response and prognosis of acute kidney injury. The search for biomarkers for acute kidney injury began over 15 years ago; initially, only serum creatinine was available for diagnosis. However, throughout history, great advances have been made in research, which have allowed the finding of new biomarkers in order to improve the health and quality of life of patients. A narrative review of the literature is carried out on the basis of available scientific evidence to clarify the role and importance of biomarkers in the context of acute renal injury.
Specific meningoencephalitis in patients with transplanted kidney
Published on: 17th June, 2020
OCLC Number/Unique Identifier: 8628628844
We described a case of specific (tuberculous) encephalitis in a patient after kidney transplantation. Immunosuppressive therapy, continuously required in post-tranplant period, may cause various complications, such as infections. Specific meningoencephalitis is an infection that is rarely diagnosed and more common in immunocompromised patients.
Case report: A 30-year-old man had kidney transplantation (kidney donor was his father). He previously was two years on chronic hemodialysis treatment because of end-stagerenal disease based on diabetic nephropathy. He has diabetes type 1. The early post-transplant period duly passed with satisfactory clinical and laboratory parameters of renal function. Two months after transplantation, he presented with febrile condition, signs of septicemia and dehydration with significant neurological deficit and expressed meningeal signs. In cerebrospinal fluid we found lymphocytosis, elevated proteins and positive micobacterium tuberculosis antibodies (Hexagon method) and we suspected to specific etiology of meningitis. Performed computed tomography (CT) scan of the brain with contrast confirmed the expected finding.
Due to the poor prognosis of infections of the central nervous system (CNS) in immunocompromised patients, only prompt diagnosis can improve survival in this group of patients. The therapeutic protocol after kidney transplantation include the prophylactic use of antituberculous drug (Isoniazid 300 mg) during the 9 months.
How does urine pH effect the tooth decay?
Published on: 5th June, 2020
OCLC Number/Unique Identifier: 8614540735
The basic aim of the present study was to relate tooth decay with the pH of the urine. pH is very important aspect which affects and depends upon the urine specificity. The glomerulus is a necessary part in the structure of kidney. The glomerulus is involved in the filtration of blood, which is involved in acidification with the help of kidneys. A cavity or hole is formed within the tooth and it can leads towards tooth decay. Cavity in its structure is so small when it is at its starting point but with the passage of time cavity becomes large in between of the teeth and it can be a main reason to the complex diseases. A total of 100 students get participated in this study from Bahauddin Zakariya University Multan, Pakistan. In this subjects went into the lab with their urine samples taking in the urine collection bag. In this a strip is used to find the values pH. Strip is placed in the urine collection bag for a minute. Then we noted the different values of different subjects. We designed a research project based upon the results that depend upon either there was any relation among tooth decay and pH. The aim of the project was either there is any relation among the tooth decay and urine pH. It was concluded that there was no any kind of relation among urine pH and tooth decay.
Is beta 2 urinary microglobulin a biomarker of topographical discrimination between high and low urinary tract infection?
Published on: 28th April, 2020
OCLC Number/Unique Identifier: 8588737014
Urinary tract infections are common affection in the general population.
Diagnosis is often easy in the presence of evocative clinical signs.
The diagnosis of urinary tract infection is evoked in the presence of an uropathogenic germ in the urine in sufficient quantity associated with urinary signs. The presence of lower back pain, chills, fever higher than 39° is suggestive of a high urinary tract infection localized in the kidney, the absence of fever associated with dysuria is suggestive of low urinary tract infection localized in the bladder.
Persistent hydronephrosis after pyeloplasty: Is it a true obstruction? The role of endourology
Published on: 13th April, 2020
OCLC Number/Unique Identifier: 8582316817
Introduction: Anderson-Hynes pyeloplasty remains the gold standard in the treatment of ureteropelvic junction obstruction. The diagnostic criteria for defining the failure of pyeloplasty are not well-defined or even arbitrary. Likewise, the ideal treatment of persistent hydronephrosis after pyeloplasty is not well established. We tested an innovative endourological procedure, which simultaneously allows a diagnostic definition of failure and treatment when necessary.
Materials and methods: The endourological procedure was applied prospectively to 13 cases from 2006 to 2015. The mean hydronephrosis was 3 cm and all the patients showed an obstructive pattern at scintigraphie. Of these, only 2 patients had symptoms. The procedure consisted in the endoscopic calibration of the pyeloureteral junction. In case of confirmed persistent stenosis, the procedure continued with the high pressure dilation of the junction. The calibration/dilation procedure was carried out with a balloon catheter, previously used for high pressure dilation in the obstructive megaureter. In all patients, a ureteral stent was positioned for 6 - 8 weeks.
The patients were then followed up using ultrasound and renoscintigraphie.
Results: According to the endoscopic balloon procedure, anastomosic stenosis was confirmed in 3 cases, treated with high pressure dilation during the same procedure. In 10 cases no stenosis was found and we followed-up these patients with periodic ultrasound and scintigraphie.
Conclusion: The calibration/dilation of the pyeloureteral junction represents in our opinion a useful diagnostic and therapeutic tool that allows to limit the repetition of open surgery only to symptomatic cases and those non-responders to endoscopic treatment.
Meanings of microalbuminuria in idiopathic nephrotic syndrome in children
Published on: 13th April, 2020
OCLC Number/Unique Identifier: 8582370066
We investigated the existence of microalbuminuria in children with corticosteroid-sensitive idiopathic nephrotic syndrome in complete remission. In the study of a series of 18 cases, we noted a clearly different evolution depending on the existence or absence of pathological micro albuminuria.
Microalbuminuria appears to be a prognostic discrimination parameter in idiopathic nephrotic syndrome.
A remote cause of anuria in a child
Published on: 26th February, 2020
OCLC Number/Unique Identifier: 8582359236
Acute renal injury is a rare complication of idiopathic nephrotic syndrome with mesPGN. Here we present a 2-year-old male patient with 4 days history of anuria, generalized edema and hypervolemia. Any evidence other than proteinuria and renal failure could not be identified with laboratory tests and doppler ultrasonography. Anuric presentation was thought to be related with rapidly progressive glomerulonephritis, diffuse mesangial sclerosis or acute tubular necrosis. However, renal biopsy revealed mesangial proliferative glomerulonephritis (mesPGN). Prednisolone 2 mg/kg/day was prescribed. Diuresis was started gradually and on the 10th day of disease, anuria was resolved and acute renal injury recovered without any sequel. This case is presented because of the incompatibility between clinical findings and histopathologic diagnosis. It is concluded that although rare, anuria and acute renal injury could be the presenting symptom of idiopathic nephrotic syndrome in childhood.
Granulomatosis with polyangiitis (GPA) in a 76-year old woman presenting with pulmonary nodule and accelerating acute kidney injury
Published on: 20th January, 2020
OCLC Number/Unique Identifier: 8516756417
Granulomatosis with polyangiitis (GPA), a form of ANCA-associated vasculitis (AAV), is a rare disease with an often-occult presentation. It is more common in 4th and 5th decades of life but can be seen in all ages.
This case report details a 76-year-old female presenting with abdominal pain, generalized weakness, and malaise, who was found to have pulmonary nodules on chest imaging. Biopsy of the lung nodule showed organizing pneumonia. Initially, antibiotics were used to treat the patient. However, she developed acute renal failure a few days after presentation and found to have positive serum C-ANCA as well as elevated ANCA-PR3 serologies. A subsequent kidney biopsy demonstrated pauci-immune necrotizing and crescentic glomerulonephritis that was consistent with GPA and the patient was started immediately on combination immunosuppressive therapy, plasmapheresis, and hemodialysis.
GPA’s clinical and radiological presentation can mimic other common conditions such as pneumonia, malignancy, bacterial sinusitis, pulmonary tuberculosis, sarcoidosis, and urinary tract infection. Because of this, a high level of suspicion is required for early diagnosis and treatment to alter the high mortality rate in this disease entity. All forms of ANCA-associated vasculitis (AAV) should be in the differential diagnosis for all patients presenting with multiorgan system involvement particularly in individuals with pulmonary and renal manifesations.
Cytomegalovirus infection in native kidney biopsy
Published on: 17th December, 2019
OCLC Number/Unique Identifier: 9272394400
A 61-year-old Brazilian black woman consulted with a nephrologist due to proteinuria identified on a routine urine test. She has a personal history of thymoma resection five years ago, followed by multiple episodes of pulmonary infections including mycobacteriosis, recurrent mucocutaneous candidiasis, and paraneoplastic pemphigus. Physical examination showed no edema or hypertension and laboratory tests identified proteinuria of 2.43 g/day without hematuria, serum creatinine of 0.69 mg/dl, urea 34 mg/dl, serum albumin of 2.4 g/dl, hemoglobin 10.9 g/dl, platelets 292,000/mm3, leukocytes 4950/mm3, lymphocytes 594/mm3 and neutrophils 3910/mm3. The hemolysis tests were negative and serum iron was low. Analysis of glicemia and serum lipids levels were normal as well as serum complement and imunoglobulins, except for an IgM level of 283 mg/dl (normal values 40 to 230 mg/dl) and undetectable IgE. Serologies for Syphilis, HIV, hepatitis B, C and antibodies for autoimmune diseases were negative.
A pilot study on treatment of infantile cystinosis with mesenchymal stem cells
Published on: 9th December, 2019
OCLC Number/Unique Identifier: 9272394663
Infantile cystinosis is a lysosomal storage disease leading to end stage kidney disease at early ages. There is no effective treatment and patients require long term dialysis or kidney transplant for survival. We present our experience on three affected children who received HLA matched allogeneic stem cell transplant. The protocol used was novel and designed to promote engraftment. The primary endpoint was safety for treatment related mortality or morbidity; All three children survived without serious adverse effects during extended follow up for over 4 years. Although we could not prove engraftment, all three children met secondary end point of sustained target functions over a 6 month follow-up. Further studies are warranted to further evaluate safety and efficacy of MSC treatment for infantile cystinosis.
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