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Query: UMLS:C0034186 (pyelonephritis)
 6,144 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Chronic renal infection (Chronic bacterial pyelonephritis) is a cause of tubulo-interstitial nephropathy (nephritis); TIN. The disorder causes end-stage renal failure in about 2% of the patients who are treated by dialysis. However, Chronic bacterial pyelonephritis is a relatively benign condition that seldom leads to renal function loss. The affected kidney shows non-specific histological pictures similar to that seen with other diseases producing TIN. Clinical symptoms are of ten vague. Obstructive uropathy (eg, stones, benign prostatic hyperplasia) is frequently present. The affected kidney, which is almost unilateral, shows atrophy and scarring of variable degree. Significant pyuria and bacteriuria may or may not be found. Depending on the stage of the disease, the serum creatinine and blood urea nitrogen may be normal or elevated. Contributing obstructive uropathy should be corrected. The patients must be followed closely, urinary tract infection must be controlled and complications (eg, hypertension, azotemia) must be identified promptly and treated adequately.
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PMID:[Interstitial nephropathy due to chronic bacterial pyelonephritis]. 756 35

During the past decade, experimental and clinical evidence has indicated an important role for the renin-angiotensin system in the progressive destruction of nephrons in a wide variety of chronic renal diseases. Studies have indicated that in the subtotally nephrectomized rat model of progressive glomerulosclerosis, in experimental diabetes mellitus, in the chronic phase of puromycin aminonucleoside-induced nephrotic syndrome and in Heymann's nephritis, angiotensin-converting enzyme (ACE) inhibitors dramatically preserve both nephron structure and function. Clinical studies have similarly noted that chronic administration of ACE inhibitors inhibits progression of renal failure in type I diabetes and type II diabetes as well as primary glomerulopathies, sickle cell nephropathy, systemic lupus erythematosis, chronic pyelonephritis and adult polycystic kidney disease. Current evidence suggests that the beneficial effect of ACE inhibitors is primarily due to inhibition of angiotensin II production, and there is strong suggestive evidence for increases in local intrarenal activation of the renin-angiotensin system in these conditions. In obstructive uropathy, activation of the renin-angiotensin system has also been shown to be an important aspect of the early functional changes and may be of importance in the subsequent generation of interstitial fibrosis. In the obstructed kidney, renin and angiotensinogen production increase and type I angiotensin receptors decrease. Inhibitors of angiotensin II production and angiotensin II action partially reverse the vasoconstriction and the reduced renal blood flow, and abolish the changes in expression of AT1 MRNA induced by obstruction. Studies suggest that the angiotensin-mediated increases in tubulointerstitial fibrosis may be mediated by increased production of transforming growth factor-beta.
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PMID:Angiotensin II-mediated renal injury. 756 81

The results of surgical treatment of pyodestructive pyelonephritis in 105 (4.2%) pregnant women and puerperae out of 2506 ones treated in the urology department from 1986 to 1994 are analyzed. Uni- and bilateral apostematous nephritis, carbuncle and abscess of the kidney were diagnosed in 89 and 16 patients, respectively. Nephrostomy was the principal method of treatment of focal suppurative forms of acute pyelonephritis. Bilateral nephrostomy was carried out in 12 pregnant patients, in 3 of them secondary nephrectomy was performed. Nephrectomy is indicated in total destruction of the kidneys, it was made in 37 (35.2%) pregnant women and puerperae. Introduction of radical surgery into practical treatment of neglected forms of pyodestructive pyelonephritis led to almost total liquidation of postoperative mortality in pregnant women. The efficacy of treatment of pregnant women is provided by varying in extension surgical interventions on the kidneys. Organ-sparing and radical operations in grave purulent pyelonephritis were effective in 97.2% of pregnant patients.
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PMID:[Organ-preserving surgeries and nephrectomy in pregnant women with severe forms of acute suppurative destructive pyelonephritis]. 776 49

A 16-year-old female received a kidney transplantation from her mother 13 months before she suddenly noticed gross hematuria and painful micturition, and developed high fever with chills. The serum creatinine (S-Cr) level rose from 1.5 to 2.6 mg/dl, but there was no clinical sign of acute rejection. Despite the treatment with antibiotics and gamma-globulin, the the high fever and hematuria did not improve. The adenovirus antibody titer elevated from x8 to x1,024, while adenovirus was not isolated from the urine. On the 15th day of the disease, hematuria disappeared spontaneously and on the 19th day she became afebrile. The S-Cr level also was normalized spontaneously. Histological examination of the graft biopsy on the 14th day, showed severe tubulointerstitial nephritis localized in the renal medulla and full type intranuclear inclusions were revealed in tubular epithelial cells. From these findings, we diagnosed this case as adenovirus-induced kidney graft pyelonephritis associated with acute hemorrhagic cystitis.
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PMID:[Adenovirus-induced kidney graft pyelonephritis following renal transplantation]. 783 71

The paper is concerned with ecological aspects of uronephrology. The epidemiological survey entering 1249 rural citizens revealed that the frequency of infectious inflammatory lesions of the kidneys is higher in subjects exposed to pesticides (7.9-13.4% against 1.5% in the controls). The experiments on 82 rabbits confirmed the relation of the renal infectious inflammation severity and incidence to exposure to chemicals used in agriculture. Basing on the analysis of 301 cases of acute renal infection, the authors came to distinguish 4 forms of the disease: pyelitis, pyelonephritis, nephropyelitis and purulent nephritis. The authors emphasize the urgent need in the regions of active pesticide application of taking prophylactic measures to reduce the contact with the toxic compounds, to actively detect and treat urinary infection including antidotes.
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PMID:[The characteristics of acute infectious-inflammatory kidney diseases in pesticide exposure]. 801 96

The role of antibodies to Tamm-Horsfall protein in the diagnosis of acute pyelonephritis was studied. Antibodies to Tamm-Horsfall protein were also determined in a group of normal subjects. Patients with acute pyelonephritis were divided into subgroups according to the concurrent presence of vesicoureteral reflux or nephrolithiasis. No statistically significant differences (p > 0.05) were observed for any class of antibodies (IgG, IgA and IgM) between the groups of healthy subjects and patients with acute pyelonephritis, regardless of the presence or absence of vesicoureteral reflux or nephrolithiasis. Values for different antibody classes showed that IgM antibodies were the most abundant in all the groups examined. A difference in the values of IgM relative to IgA and IgG antibodies was found to be statistically significant in the patient group only (p < 0.05). In patients with vesicoureteral reflux, there was no statistically significant difference (p > 0.05) between the values of IgM and of other antibody classes. In these patients, however, the highest values of all the three antibody classes were obtained, although these differences were also not statistically significant (p > 0.05). The results pointed to the need of further studies of the role of antibodies to Tamm-Horsfall protein in the diagnosis and pathogenesis of tubulointerstitial nephritis.
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PMID:Antibodies to Tamm-Horsfall protein in patients with acute pyelonephritis. 808 15

The analysis of clinical, diagnostic and treatment efficacy data has been made for 160 diabetes mellitus patients (50 cases of insulin-dependent and 110 of noninsulin-dependent) with acute purulent pyelonephritis (APP). A diffuse form of the disease was detected in 100 patients (62.5%), purulent-destructive one in 60 patients (37.5%). Intoxication, resistant to insulin decompensation of diabetes mellitus, sepsis may be resultant from latent APP. Nondestructive forms of APP were responsive to antibacterial and detoxication therapy combined with catheterization of the urinary tracts. On demand, conservative therapy was reinforced with renal drainage by nephrostomy. Primary nephrectomy was recommended in purulent-destructive forms and purulent para-nephritis. Radical surgery in intensive and advanced purulent-destructive pyelonephritis produced a decrease in postoperative lethality by 26.8%. Adequate therapeutic policy provided positive results in 80% of the patients. Lethal outcomes (20%) were due to grave diabetes mellitus and APP.
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PMID:[The treatment of acute suppurative pyelonephritis in diabetes mellitus patients]. 829 30

Acute lobar nephronia (acute focal bacterial nephritis) has recently been recognized as an infectious process of the kidney. It is a radiologic diagnosis characterized as a nonliquifiable inflammatory renal mass associated with signs and symptoms of bacterial pyelonephritis. We present the successful management of a renal allograft recipient who had radiologic evidence of acute lobar nephronia within the graft six weeks after placement of an internalized ureteral stent.
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PMID:Acute lobar nephronia of renal transplant allograft. 844 16

We describe an unusual complication of acute pyelonephritis in a 45-year-old diabetic female. She was admitted to our hospital due to fever and flank pain which had developed 10 days earlier. Urinalysis showed many WBC and urine culture revealed Escherichia coli. After adequate antibiotic treatment, clinical symptoms abated but renal failure and leukocyturia persisted. Abdominal CT showed bilateral focal bacterial nephritis and renal biopsy disclosed chronic granulomatous interstitial nephritis. On the 80th hospital day she was discharged with a serum creatinine of 299 mumol/l. In the outpatient clinic, renal dysfunction and leukocyturia persisted up to 1 year. In conclusion, this case raises the possibility of a chronic interstitial process of acute pyelonephritis.
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PMID:Chronic granulomatous interstitial nephritis: unusual complication of acute pyelonephritis. 868 45

The present study establishes the size of the kidneys in adult males and females according to three age groups, under 30, 30 to 60, and over 60, in our community. To this end, morphologically normal kidneys were studied, considering four diameters: longitudinal (L), antero-posterior (AP), transverse (T) and cortical (D). We found that renal size, in all diameters, was larger in males and females, and the left one larger than the right one. The study include 522 kidneys, from a total of 247 subjects. Apart from renal biometry, the incidence of disease was also recorded. Ten different possibilities were included in the picture: 1) Normal (N); 2) Cysts (C); 3) Lithiasis (L); 4) Tumour (T); 5) Pyelonephritis (PN); 6) Acute Focal Nephritis (AFN); 7) Hydronephrosis (HN): 8) Double Excretory System (DES): 9) Abscesses (A); and 10) ther (O). The incidence of disease is maximal in subjects over 60, with predominance of women and left kidney; most frequent changes were cysts and pyelonephritis. Of the three age groups, those under 30 had a mean age of 22.36 years, 85% being between 18 and 30 years; in the intermediate group, 30 to 60 years, mean age was 48.40 with 65% between 45 and 60; in the over 60 group, mean age was 68.67 with 70% between 61 and 70 years of age.
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PMID:[Renal study protocol with ultrasonography: biometry and incidence of disease]. 880 83


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