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

The role of nephron-sparing surgery for renal cell carcinoma is well established in patients with an anatomical or functional solitary kidney (imperative indication) in which a radical nephrectomy would render the patient anephric with subsequent need for hemodialysis. This also encompasses patients with a unilateral renal cell carcinoma and a functioning contralateral kidney when the opposite renal unit is affected by a disease that might threaten its future function, such as renal artery stenosis, chronic pyelonephritis, stone disease or systemic conditions such as diabetes. A functioning renal remant of at least 20% of normal renal parenchyma seems to be necessary to avoid end-stage renal failure in these patients [16]. There have been several reports in the literature of excellent 5-year cancer-specific survival rates of over 80% in such circumstances [12, 15]. These results were confirmed in our institution, with a 5-year cancer-specific survival rate of 83% in over 70 patients with an imperative indication for nephron-sparing surgery. Thereby the prognosis was significantly influenced by the local tumor stage and the grade of malignancy. These data support the efficacy of nephron-sparing surgery in this clinical situation.
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PMID:Current controversies in nephron-sparing surgery for renal-cell carcinoma. 755 Mar 88

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

Resistive index (RI) calculation on Doppler tracing of intrarenal arterial blood flow is a sensitive method for the early diagnosis of obstructive uropathy. However, the RI is not specific and can increase in a number of other conditions, e.g., old age, circulating endogenic factors or drugs, other nephropathies. The authors investigated RI usefulness and accuracy by measuring it both before and after the radiologic treatment of acute urinary obstruction in 21 patients, 9 of whom had chronic renal failure due to other causes, i.e., hypertension, diabetes and chronic pyelonephritis. The clinical conditions of the patients limited the feasibility of RI measurements before and after nephrostomy to 66%. In 22 kidneys in 17 patients examined before nephrostomy, the RI ranged 0.63 to 0.93 (mean: 0.80); when the obstruction was unilateral, the RI was always higher than in the contralateral kidney. In 25 kidneys in 18 patients examined after nephrostomy, the mean RI value was 0.68 (15% lower than before). Taking 0.7 as the cut-off value, RI sensitivity in detecting acute urinary obstruction was high (about 90%), while its specificity was low (about 50%); specificity increased (to about 80%) when other concomitant causes of increased intrarenal arterial resistance, e.g., other vascular or parenchymal nephropathies, were not considered. In some cases, the method was also useful in excluding the presence of recurrent obstruction after ureteral stent removal. In conclusion, Doppler US values of intrarenal arterial perfusion are indicative of acute urinary obstruction when they can be compared with those from the contralateral healthy kidney or when they can be measured, in the same patient, before and after decompressive nephrostomy. In other cases, other nephropathies and some technical limitations must be considered.
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PMID:[Doppler ultrasonography of the intrarenal arteries before and after radiologic treatment in obstructive uropathy]. 756 99

Bacterial UTIs are a common problem in patients with diabetes mellitus. Bacteriuria is more common in diabetic women than in non-diabetics owing to a combination of host and local risk factors. Upper tract disease is also more common in this group. Diabetics are at higher risk for intrarenal abscess, with a spectrum of disease ranging from acute focal bacterial pyelonephritis to renal corticomedullary abscess to the renal carbuncle. A number of uncommon complicated UTIs, such as emphysematous pyelonephritis and emphysematous pyelitis, occur more frequently in diabetics. Because of the frequency and severity of UTI in diabetics, prompt diagnosis and early therapy is warranted.
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PMID:Bacterial urinary tract infections in diabetes. 776 19

The purpose of this study was to investigate the perinatal morbidity and mortality in all the diabetic pregnancies seen at the HGO-"LCA" from January 1992 to December 1993. In that period 186 women (mean age 31 yr) were diagnosed as having diabetes during pregnancy: 54% of them had DMG, 40% DM-II and 6% DM-I, with serum glucose concentration of 133 +/- 41 mg/dL. Neonatal morbidity was given by macrosomia (17%), prematurity (14%), hyperbilirubinemia (11%), hypoglycemia (8%), congenital malformation (6%) and hypocalcemia (4%). Perinatal mortality was 5.3%. The principal causes of maternal morbidity were preeclampsia (17%), polyhydramnios (16%), pyelonephritis (4%) and ketoacidosis (0.05%). Cesarean section was performed in 62% of all diabetic patients. There was not any maternal death. This results showed a high perinatal morbidity-mortality in pregnancies complicated by diabetes mellitus which reclaim a better metabolic control during gestation period.
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PMID:[Perinatal morbidity and mortality in pregnant women with diabetes mellitus]. 778 45

A 32-year-old woman was hospitalized with the chief complaints of high fever and right flank pain. The patient had received treatment for diabetes mellitus and liver cirrhosis. The patient's laboratory data indicated pyuria, renal dysfunction and hyperglycemia. E. coli was detected in the blood, urine and pus. Plain abdominal X-ray revealed gas shadows at the right renal region. Abdominal CT scanning also showed gas shadows in the renal parenchyma of both sides. A diagnosis of bilateral emphysematous pyelonephritis was made. Chemotherapy and retroperitoneal drainage was performed. After therapy, the patient's laboratory data was improved and the abnormal gas shadows disappeared. We reviewed 77 cases of emphysematous pyelonephritis, including our case, from the Japanese literature.
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PMID:[A case of bilateral emphysematous pyelonephritis associated with diabetes mellitus and liver cirrhosis]. 808 61

Renal parenchymal malacoplakia is uncommon, and coexistence of extensive invasion into the liver and duodenum is extremely rare. Typically, there is an associated long-term urinary tract infection. We report on a 53-year-old woman with a history of diabetes and recurring pyelonephritis, who presented with a renal tumor and upper gastrointestinal bleeding. Surgical intervention included radical nephrectomy, lymphadenectomy, segmental hepatectomy, cholecystostomy, duodenorrhaphy, jejunostomy and appendectomy. There was no surgical morbidity. A pathologist confirmed the diagnosis of malacoplakia. All of the diagnostic criteria, including hematoxylin and eosin stain, iron stain, calcium stain and electron microscopy of Michaelis-Gutmann bodies, were classic. The literature is reviewed.
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PMID:Renal malacoplakia with secondary hepato-duodenal involvement. 812 44

From 1986 to 1992 the authors treated 160 patients with acute purulent pyelonephritis (APP) associated with diabetes mellitus (DM). 100 patients were diagnosed to have diffuse-purulent pyelonephritis (DPP), 60 patients (37.5%) had purulent-destructive pyelonephritis (PDP). The authors carried on two different surgical policies: in 1986-1988 a conservative approach was followed (7 out of 21 patients underwent nephrectomy, 14 underwent nephrostomy and other organ-sparing operations), in 1989-1992 a radical approach was used. After the nephrostomy there were 7 lethal outcomes (53.8%) and 6 cures. Histological examination of the kidneys from the latter patients revealed DPP with major renal pelvic involvement. Lethal outcomes were caused by intoxication resultant from progressive purulent destruction in the operated on kidney in the presence of uncorrectable hyperglycemia with ketoacidosis. In view of mutual aggravation observed in APP and DM and ineffectiveness of nephrostomy in PDP, indications to radical removal of the inflammation focus (nephrectomy) are of vital character. This explains why the conservative approach was changed for the radical one according to which nephrectomy was conducted in 37 (94.8%) of the surgical patients. Lethal outcomes of nephrectomy under the radical approach reached 27%. The employment of active radical policy reduced postoperative lethality by 26.8%. It is inferred that in DPP conservative methods including nephrostomy are valid. IN PDP primary nephrectomy in justified. Overall positive results were achieved in 80% of the patients. A 20% lethality was due to severe DM, APP form and imperfect therapeutic policy.
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PMID:[The characteristics of the treatment procedure in acute suppurative pyelonephritis in diabetic patients]. 816 Mar 11

Various treatment strategies are currently used in the management of acute pyelonephritis, with some patients being treated as inpatients and others as outpatients. To better describe the clinical course of patients with this condition and the management strategies of physicians treating these patients, a retrospective cohort study of febrile nonpregnant women presenting to the emergency department with clinical evidence of acute pyelonephritis was conducted. Acute pyelonephritis was defined as infected urine (> or = 7 white blood cells/high-power field and/or urine culture with > or = 10(4) colony-forming units [CFU]/mL) and fewer (> or = 37.8 degrees C) without other source. Between October 1990 and September 1991, 28 hospitalized and 83 nonhospitalized patients satisfied these criteria. Data were abstracted from hospital charts, and clinical outcomes were determined from chart reviews and telephone or mailed questionnaires. The hospitalized patients were significantly older (odds ratio [OR] = 1.07), had higher temperatures (OR = 6.12), and were more likely to have diabetes (OR = 10.57), genitourinary tract abnormalities (OR = 10.53), and vomiting (OR = 12.17) than the nonhospitalized patients. Sixty-six (80%) of the nonhospitalized patients were treated with a single dose of parenteral antibiotic (usually gentamicin or ceftriaxone) before discharge on oral antibiotics. Seventy-one (86%) were treated with oral trimethoprim-sulfamethoxazole. Follow-up was obtained for 75 (90%) of the nonhospitalized patients. Nine (12%) of the 75 returned because of symptoms of acute pyelonephritis, with 8 returning within 1 day of the initial visit. Seven of those returning were admitted. All responded to additional antibiotic therapy.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:ED management of acute pyelonephritis in women: a cohort study. 817 29

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


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