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

Ultrasound examinations were analysed in 24 patients with acute renal infections (pyelonephritis, focal pyelonephritis, renal abscess, pyonephrosis). Ultrasound examination is normal in mild inflammatory involvement of parenchyma, diffuse enlargement of parenchyma with echo-poor structure is found in severe involvement of parenchyma, localized echo-poor swelling of parenchyma is seen in focal pyelonephritis. Fever and flank pain are common to acute ureteral obstruction and acute pyelonephritis and ultrasound can differentiate between these diseases. Among mass lesions ultrasound can distinguish between focal pyelonephritis and abscess but cannot differentiate between tumor and focal pyelonephritis.
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PMID:[Ultrasound in acute renal infections (author's transl)]. 621 78

The evaluation and management of patients with severe persistent urinary tract infection after appropriate antibiotic therapy can be difficult. The first radiologic examination is usually excretory urography, but the findings often are nonspecific. A group of 40 patients was studied to assess the contribution of cross-sectional imaging and included patients with diffuse and focal pyelonephritis, renal abscess, pyonephrosis, and pararenal abscess. Indications for cross-sectional imaging include persistent symptoms despite antibiotics, predisposing "risk factors," suspicion of flank mass on other imaging methods, and no excretion on urography. Percutaneous aspiration and/or drainage for diagnosis and/or treatment can be guided by the cross-sectional imaging methods.
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PMID:Imaging in inflammatory disease of the kidney. 661 Mar 8

The authors report 17 personal cases of lithiasis of the upper urinary tract discovered in the course of pregnancy. They discuss the diagnostic and therapeutic problems, taking into account the double risk of mother and foetus. The essential diagnostic sign is renal colic, with or without fever. Spontaneous excretion of these calculi is possible, but in 8 of the 17 cases, a ureteric catheter had to be passed or an operation was required. Neither the delivery nor the health of the infants delivered seemed to be harmed by this renal calculi disease. The authors recall that the most common cause of non-obstetrical abdominal pain in the course of pregnancy is in fact urinary calculi. The incidence is about 1 cases of lithiasis per 1,000 pregnancies. It appear that a physiological hyperparathyroidism of pregnancy is responsible for a hypercalciuria which could be a factor favouring the development of lithiasis during pregnancy. The important point is to know how to distinguish those forms of pyelonephritis of pregnancy which are due to a stone obstructing the upper urinary tract, as any purulent retention in the upper tract can lead to a pyonephrosis, a bacteraemia or even a septicaemia. The presence of the foetus makes interpretation of a plain abdominal film difficult. In any case, its indication is questionable, whenever the urine is septic, particularly with Proteus.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Lithiasis of the upper urinary tract and pregnancy]. 663 Oct 37

Ultrasound examinations were analysed in 38 patients with acute renal infections (pyelonephritis, focal pyelonephritis, renal abscess, pyonephrosis). Ultrasound examination is normal in mild inflammatory involvement of parenchyma. In severe involvement diffuse enlargement of parenchyma with low density of echoes structure is found, while in focal pyelonephritis localized low density of echoes swelling of parenchyma is seen. Fever and flank pain are common to acute ureteral obstruction and acute pyelonephritis and ultrasound can distinguish between these diseases. Among mass lesions ultrasound can distinguish between focal pyelonephritis and abscess, but cannot differentiate between tumour and focal pyelonephritis.
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PMID:Ultrasound in acute renal inflammatory lesions. 665 72

In urology wound infections are of particular importance, since they occur in more than 8 of 100 patients. Of all surgical disciplines, urology in fact, is the one with the highest incidence of secondary wound healing. Thus, defective wound healing is seen in about 20% of unselected nephrectomy cases while adenomectomies associated with pyuria and prostatic abscesses show delayed healing in about 40%. In the presence of pyonephrosis or pyelonephritis surgical wounds are infected in 50% of cases. Prolonged preoperative hospitalization increases the chances of skin contamination and, as a result, the risk of wound infection. In addition, it is associated with a higher incidence of hospital infections, which constitutes another endogenous factor underlying defective wound healing. The rate of postoperative wound infections can only be kept within reasonable limits, if close attention is paid to the many factors which contribute to wound healing (e. g. hygiene and preoperative preparation, removal of hair, skin degerming, draping, preoperative disinfection of hands, prophylactic antibiotics etc.) and if strict aseptic and antiseptic precautions are taken.
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PMID:[Wound healing disorders in urology]. 668 26

Newer techniques have supplanted the urogram as the preferred procedure for evaluation of several renal infections. When imaging is indicated in acute pyelonephritis, sonography should be performed first. In focal pyelonephritis, sonography and/or computed tomography are preferred. These techniques are also generally required for elucidation of renal abscess and pyonephrosis.
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PMID:Imaging techniques and renal infections. 673 Dec 48

Adhesive and invasive strains of Escherichia coli induced chronic pyelonephritis in mice following the acute phase. The pathological features of the induced chronic pyelonephritis were different between the groups of mice infected with these strains. In piliated adhesive strain (E77156)-infection, the kidneys with viable bacilli showed pyonephrosis with incomplete obstruction or atrophy with coarse scar. Mice with these renal lesions showed high serum antibody levels, but histologically recurrent infection was frequent. On the other hand, in non-piliated invasive strain (633-65)-infection, sterile pyelonephritis developed. This chronic lesion was characterized by the migration of antigen-bearing macrophages and lymphocytes and by a negative serum antibody response. In infections with either strain the predominant lymphocytes in the renal lesions were smooth-surfaced T-lymphocytes.
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PMID:Experimental pyelonephritis in mice following ascending infection with E. coli. Chronic phase. 702 Mar 32

There were 95 patients (105 kidneys) with staghorn calculi evaluated clinically and 84 kidneys were studied on a pathologic basis. Only 1 percent of the patients could be defined as having a silent stone calculus. Clinical complications occurred in 53 per cent of the patients. Of 84 kidneys submitted for a pathoanatomic study (surgical evaluation and/or histopathology) pyonephrosis was found in 20 per cent, xanthogranulomatous pyelonephritis in 8 per cent, end stage pyelonephritic kidney in 6 per cent, end state hydronephrotic kidney in 7 per cent, severe pyelonephritic changes in 7 per cent and a perinephric abscess in 5 per cent. The kidney was considered to be relatively undamaged in 51 per cent of the cases. Complete removal of the calculus and appropriate medical adjunctive therapy should be done early in the course of the disease in an attempt to prevent complications and renal deterioration. The results of treatment are discussed and compared to those obtained in a group of patients who initially were managed conservatively.
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PMID:Staghorn calculis: its clinical presentation, complications and management. 708 84

A young man presented with a history of uncorrected ureteropelvic junction obstruction 18 months in duration and clinical acute pyelonephritis. Retrograde pyelography showed unilateral pyonephrosis and cultures of purulent drainage proximal to the ureteropelvic junction revealed predominantly anaerobic bacteria and no aerobic gram-negative bacilli. Subsequent nephrectomy established a diagnosis of xanthogranulomatous pyelonephritis. Nephrectomy in combination with intensive antimicrobial therapy resulted in recovery. The contribution of anaerobic bacteria in the pathogenesis of xanthogranulomatous pyelonephritis is unknown. Anaerobic culture of urine and excised tissue in these patients may be indicated.
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PMID:Anaerobic bacterial infection and xanthogranulomatous pyelonephritis: a case report. 712 May 66

In acute obstructive pyelonephritis, obstruction is the most dangerous factor. This danger is for the kidney where pyelocanalicular reflux is responsible for interstitial nephritis and pyonephrosis. A danger also for the life of the patient, since pyelo-venous and pyelo-lymphatic reflux are responsible for septicaemia. During a short period of two years, the authors have been able, thanks to cooperation of all physicians working in their teaching hospital group, to collect 89 cases of acute obstructive pyelonephritis, 29 of them with concomitant septicaemia. By virtue of their resolutely aggressive attitude, relief of urinary tract obstruction was obtained on average only 15 hours after hospitalisation of the patients. Fifty nine of these patients had lithiasis. Despite such rapid care, it should be emphasised that 11 patients died. This reflects the gravity of such retention of infected urine proximal to the upper excretory tract. This gravity is considerably multiplied by the onset of septicaemia. Among the 11 deaths, 9 were in the group of 29 patients with septicaemia, whilst there were only 2 deaths amongst the group of 60 patients with no clinical evidence of septicaemia. In the opinion of the authors, treatment should, whenever possible, include elimination of the obstruction and thorough urinary drainage. In the presence of any apparently isolated septicaemia, it is essential to seek a renal cause. The rapidity of the elimination of obstruction of the urinary tract is the essential step in treatment, antibiotics being only an adjuvant.
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PMID:[Intra-renal purulent retention. Review of two years' experience (author's transl)]. 727 1


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