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

In acute "primary" pyelonephritis (APP), kidney infection occurs despite normal urinary tract morphology. Typical features of APP are spiking fever and chills, loin pain, pyuria, bacteriuria, isolation of uropathogenic strains of E. coli, and specific renal CT scan images. APP may be atypical when lacking pain, or fever, or when urine cultures are negative, or when urinary bacteria do not exhibit characters of uropathogenicity, or when CT scan examination is negative. Such atypical features entail loss of time in diagnosis, and thereby delayed treatment and increased risk of cortical scar formation. However, they are virtually never observed simultaneously in a given patient.
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PMID:[Atypical forms of primary acute pyelonephritis]. 235 34

Placement of internal ureteral stents before extracorporeal shock wave lithotripsy of large stone burdens has decreased the incidence of post-extracorporeal shock wave lithotripsy colic, secondary endoscopic procedures and prolonged hospital stays. However, indwelling stents have an associated patient morbidity and intolerance. A telephone survey of 50 patients (average stone burden 28 mm.) who were discharged from the hospital after treatment with an indwelling internal polymer stent was performed with a standard questionnaire. Symptoms reported with in situ internal ureteral stents included gross hematuria (42 per cent), fever or chills (20 per cent), and persistent discomfort or pain in the bladder and/or flank (26 to 38 per cent). Of the patients 44 per cent reported moderate to intolerable discomfort that was relieved by removal of the stent. The degree of symptoms was not associated with stent composition, style or length, or the presence of a transurethral string. Five patients had premature migration or dislodgment of the internal stent and 4 reported episodes of obstructive pyelonephritis requiring removal of an impacted stent or endourological intervention. Internal ureteral stents placed before extracorporeal shock wave lithotripsy have an identifiable patient morbidity while indwelling and, therefore, they should be used judiciously according to the stone burden, renal anatomy and body habitus.
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PMID:Morbidity associated with indwelling internal ureteral stents after shock wave lithotripsy. 291 84

There is controversy regarding the role of radiological imaging for urinary tract infection (UTI). The "gold standard" has been the intravenous pyelogram (IVP). Yet, the IVP has a very limited value with only about 25% of children with pyelonephritis demonstrating abnormalities. Ultrasound (US) has recently been advocated as a replacement for the poorly sensitive and poorly specific IVP. However, comparative studies between US and IVP indicate only an equivalent sensitivity and specificity. Cortical scintigraphy with Technetium-99m glucoheptonate (99mTc GH) or 99mTc dimercaptosuccinic acid (99mTc DMSA) has also been advocated as a means of differentiating parenchymal (pyelonephritis) from nonparenchymal (lower UTI) involvement in UTI. The clinical presentation may be misleading especially in the infant and child in whom an elevated temperature, flank pain, shaking chills, or an elevated sedimentation rate are often lacking. The clinician attempts to localize the site of infection for it has a direct bearing upon the therapy. A collecting system infection can often be eradicated with a single oral dose of an appropriate antibiotic, whereas renal parenchymal involvement requires IV therapy for an extended interval. Cortical scintigraphy can localize the site of infection with a high degree of accuracy. Recent studies report a sensitivity of 86% and specificity of 81% of pyelonephritis. This is in contrast to the IVP with a sensitivity of only 24% and US with a sensitivity of only 42%. The scintigraphic appearance of parenchymal infection of the kidney is a spectrum of minimal to gross defects reflecting the degree of histologic involvement that spans from a mild infection to frank abscess. Cortical scintigraphy can be used to monitor the evolution of scarring following infection. Cortical scintigraphy with 99mTc DMSA or 99mTc GH is the method of choice for the initial evaluation of UTI. Not only does it have a very high sensitivity and specificity for differentiating parenchymal from collecting system disease, but it also provides an accurate quantitative measurement of function and in combination with radioiodinated orthoiodohippurate renography and Lasix (furosemide; Abbott Laboratories, North Chicago) diuresis will also differentiate significant obstruction from stasis. The use of radionuclide techniques opens new vistas for the investigation of UTI. Cortical scintigraphy should become the gold standard by which other technologies, therapy, and theoretical considerations of pyelonephritis are measured.
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PMID:The role of scintigraphy in urinary tract infection. 306 83

A case of emphysematous pyelonephritis is presented. A 54-year-old woman with diabetes mellitus was admitted because of bilateral ureteral stones. Five days after bilateral ureterolithotomy, she developed left flank pain, chills and fever. Plain x-rays of the abdomen (KUB) showed an enlarged left kidney with a giant gas shadow on the left renal area and no evidence of stone shadow. Drip infusion pyelogram revealed a decrease in the left renal function and the presence of the gas in the pyelocalyceal system. Contrast-enhanced computerized tomograms confirmed the presence of the gas in the parenchyma and pyelocalyceal system. The patient was treated conservatively with intensive antibiotic therapy, intravenous fluids and control of diabetes mellitus. After 3 weeks of therapy, the gas shadow disappeared, and a good recovery of renal architecture and function was achieved.
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PMID:[Emphysematous pyelonephritis: report of a case]. 401 46

During a 4.5-year period, over 2% of 24,000 obstetric patients at Parkland Memorial Hospital were admitted for acute pyelonephritis. Chills accompanying back pain was the most common presenting complaint in the se 656 women; lower urinary tract symptoms and nausea and vomiting were also common. All women had fever and, with few exceptions, costovertebral angle tenderness. In most cases, the clinical impression was confirmed by bacteriuria. Significant transient renal dysfunction was demonstrated in 60 (21%) of 282 women tested. Of 501 of the 656 women with antepartum pyelonephritis who delivered at Parkland Hospital, 23% developed recurrent pyelonephritis; in half of these patients, this recurrence was antepartum. Of 393 and of the 501 women tested, 20% had asymptomatic bacteriuria at delivery. An 8- to 13-year follow-up study was done on 208 of the 501 women following the index pregnancy; 42% were treated for 1 or more episodes of symptomatic urinary infection when not pregnant. In 140 of the 501 women, a subsequent pregnancy was cared for at Parkland Hospital. Thirty-eight percent of these patients had at least 1 urinary infection during 1 of these pregnancies: 29% had pyelonephritis, and 9% had either asymptomatic bacteriuria or cystitis.
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PMID:Acute pyelonephritis in pregnancy: an anterospective study. 724 84

Patterns of fever, shock, and chills in 100 episodes of febrile, Gram-negative bacillemia were retrospectively analyzed to determine features predictive of the site of infection, organism, and prognosis. Pneumonias most often produced morning temperature rises, whereas infections in other sites were usually associated with an afternoon or evening peak. Peritonitis (usually due to Bacteroides fragilis) tended to cause an indolent temperature rise (over a day or more), whereas pyelonephritis and cholangitis typically produced an abrupt "spike." Relatively low fevers characterized Enterobacter pneumonias while very high fevers were noted in Pseudomonas aeruginosa infections in patients with leukemia. Chills occurred with unusually high frequency in cholangitis and in Klebsiella bacteremia. Patients going into shock had higher fevers than those who did not. More importantly, the development of shock was shown to be related to severity of underlying disease. Shock never developed if the disease was not serious, unless the bacteremia was caused by instrumentation, but occurred in 73% of patients with leukemia or lymphoma. The clinical setting, pattern of fever, and presence or absence of a chill can in many cases usefully guide diagnosis and therapy in patients with Gram-negative bacillemia.
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PMID:Fever, shock and chills in gram-negative bacillemia: clinical correlations in 100 cases. 731 Dec 56

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

A total of 21 patients (20 women and one man) with emphysematous pyelonephritis (EPN), treated in the Kaohsiung Veterans General Hospital during the period from 1991 through 1999 were included in this study. All of the patients were diabetic. The most common symptoms or signs were fever/chills (80%) and costovertebral angle knocking pain (71%). Diagnosis was confirmed by the presence of gas in the parenchyma or paranephric space on plain X-ray of the abdomen or computed tomography. The left kidney (11 cases, 52%) was more frequently affected than the right one (nine cases, 43%), and both kidneys were involved in one case. Obstruction of the corresponding renoureteral unit was found in 19% of the patients, and renal or ureteral stone was found in 23% of the patients. One third of the patients had type I EPN, and two-thirds had type II EPN. Escherichia coli was the most commonly isolated organism, accounting for 61%, 76%, and 47% of isolates from blood, urine, and aspirated pus culture respectively. Prompt control of blood sugar was begun and intravenous antibiotics were given. Drainage was performed in 71% of the patients, and two persons required nephrectomy because of poor control of the infection or complications. Overall survival was 72%. Emphysematous pyelonephritis is a rare, life-threatening, suppurative infection of the renal parenchyma and perirenaL tissues. For successful management of EPN, appropriate medical treatment should be initiated, and immediate nephrectomy or drainage should not be delayed.
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PMID:Clinical characteristics of emphysematous pyelonephritis. 1145 58

The treatment of urinary tract infections (UTIs) and prostatitis has to be tailored on the clinical features of patients. UTIs should be differentiated in uncomplicated UTIs, acute pyelonephritis, complicated UTIs and UTIs in men, and asymptomatic UTIs. Prostatic inflammatory disease can be divided in 5 categories. Uncomplicated UTIs should be treated with a 3-day course of oral antibiotics, pyelonephritis and complicated UTIs with a 14-day course of oral antibiotics. In the case of high fever with chills intensive treatment with an appropriate antibiotic administered intravenously is needed until subsidence of the acute symptoms. This should be followed by oral antibiotic for two weeks. The treatment of asymptomatic UTIs should be considered for children and pregnant women. Antibiotics should be administered for 14-42 days in category I to IIIA of inflammatory prostatic disease. In the last decade acquired resistance of uropathogens to aminopenicillins and trimethoprim-sulfamethoxazole appears to have been increasing in the United States and Europe, while the susceptibility to systemic fluoroquinolones has remained unchanged at 98-99%. Particularly levofloxacin showed activity against Gram-positive bacteria without loss of Gram-negative spectrum. In normal adults levofloxacin reached urinary, bladder and prostate concentrations after a 250 mg oral dose above the MIC90 for all typical uropathogens. Multicenter clinical studies on clinical and microbiological efficacy of levofloxacin were carried out in the treatment of genitourinary tract infections. Levofloxacin 250 mg once daily for three days was highly effective in the treatment of uncomplicated UTIs. Levofloxacin 250 mg once daily for 7-10 days was clinically and microbiologically effective also for the treatment of acute pyelonephritis and complicated UTIs. In patients with nonchlamydial chronic prostatitis the bacteriological response was 85.4%. Finally levofloxacin showed a superior tolerability profile than other fluoroquinolones.
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PMID:[Role of levofloxacin in the treatment of urinary tract infections]. 1175 33

Diminutive kidney, hypoplasia or atrophic pyelonephritis, may be the cause of hypertension, lumbar or abdominal pain, obscure gastrointestinal symptoms or chronic urinary infection accompanied by chills and fever. A hypoplastic kidney is prone to infection and stone formation.Diagnosis includes meticulous x-ray examination and renal function studies employing the more accurate quantitative phenolsulfonphthalein test of each kidney. Nephrectomy is the treatment for unilateral disease causing symptoms; localized atrophic pyelonephritis is amenable to partial resection. Since urinary stasis invites infection, obstructing ureteral strictures should be dilated. Pyelectasis, secondary to ptosis, and ureteropelvic obstruction should be corrected by nephropexy or plastic repair. These conservative measures may prevent renal destruction.SIXTEEN PATIENTS WERE SUBJECTED TO NEPHRECTOMY: Six because of persistent pain and chronic infection and ten because of hypertension. The six with pain and chronic urinary infection were relieved. In six of the ten with hypertension, the disease recurred within six months to seven years.
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PMID:The diminutive kidney; congenital hypoplasia and atrophic pyelonephritis. 1328 42


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