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This article reviews the state of knowledge and the algorithms for the diagnosis, classification, and treatment of nocturia. The state of the art in diagnosis, classification, and treatment of nocturia is presented. Nocturia has been poorly classified and poorly understood. Multiple factors may result in nocturia, among which are pathologic conditions such as cardiovascular disease, diabetes mellitus, lower urinary tract obstruction, anxiety or primary sleep disorders, and behavioral and environmental factors. Nocturia may be attributed to nocturnal polyuria (nocturnal urine overproduction), diminished nocturnal bladder capacity, or a combination of the two. Distinction between these conditions is made by a simple arithmetic analysis of the 24-hour voiding diary. Nocturia has been poorly studied and, only recently, has been classified according to its etiology and pathogenesis. Based on a review of the current state of knowledge, this article presents a scheme for the classification and treatment of patients suffering from loss of sleep resulting from nocturnal micturition.
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PMID:Nocturia. 1449 58

Emphysematous (Gas-forming) pyelonephritis (EPN) is a rare and life-threatening infection of the renal parenchyma with or without involvement of the peri-renal tissues. Diagnosis of this condition is usually made on clinical and radiological grounds. Risk factors for this condition include diabetes mellitus, urinary tract obstruction, renal anomalies such as polycystic kidneys, stones, old age and others. Review of the literature did not reveal any reports of (EPN) in the pediatric age group especially in transplanted patients. We report the first case of EPN in a child, a 12-yr-old boy with a renal transplant, and discuss the various diagnostic and management issues of this particular case and EPN in general.
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PMID:An unusual case of pyelonephritis in a pediatric renal transplant recipient. 1578 4

Emphysematous pyelonephritis is characterized by infection and gas formation in the renal parenchyma. This rare disorder tends to occur more frequently in patients with diabetes mellitus and urinary tract obstruction. In this case report, we describe a nondiabetic patient with Hinman syndrome who developed recurrent emphysematous pyelonephritis that was successfully treated with antibiotics on both occasions.
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PMID:Successful medical management of recurrent emphysematous pyelonephritis. 1650 62

Storage symptoms such as urgency, frequency, and nocturia, with or without urge incontinence, are characterized as overactive bladder (OAB). OAB can lead to urge incontinence. Disturbances in nerves, smooth muscle, and urothelium can cause this condition. In some respects the division between peripheral and central causes of OAB is artificial, but it remains a useful paradigm for appreciating the interactions between different tissues. Models have been developed to mimic the OAB associated with bladder instability, lower urinary tract obstruction, neuropathic disorders, diabetes, and interstitial cystitis. These models share the common features of increased connectivity and excitability of both detrusor smooth muscle and nerves. Increased excitability and connectivity of nerves involved in micturition rely on growth factors that orchestrate neural plasticity. Neurotransmitters, prostaglandins, and growth factors, such as nerve growth factor, provide mechanisms for bidirectional communication between muscle or urothelium and nerve, leading to OAB with or without urge incontinence.
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PMID:Pathophysiology of overactive bladder and urge urinary incontinence. 1698 23

Thomas Jefferson, the third President of the USA, was often the victim of a panoply of disorders including episodic headaches, dysentery, rheumatism, multiple bone fractures, malaria, possibly tuberculosis, dental problems, diabetes and urinary tract obstruction. Intermittently he experienced anxiety, depression and insomnia; he was an anxious, striving perfectionist, a compulsively controlled man.
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PMID:The medical history of Thomas Jefferson (1743-1826). 1846 85

Emphysematous pyelonephritis (EPN) is a rare condition that typically occurs in patients with diabetes mellitus, urinary tract obstruction, or immunosuppression such as solid organ transplant recipients. It has high mortality and frequently requires nephrectomy to achieve cure, although percutaneous drainage has been reported to be successful in some patients. We report a renal transplant recipient with underlying diabetes mellitus who developed iatrogenic EPN. The patient initially presented with dyspnea and was admitted for cardiac evaluation. There was no evidence of urinary tract infection at the time of admission. The patient developed high-grade fever 3 days after admission. Despite intravenous (IV) antibiotic therapy, the patient developed acute renal failure requiring hemodialysis. Studies revealed Klebsiella bacteremia and EPN. We believe that urinary tract infection was precipitated by urinary bladder catheterization performed on the day of admission. Despite 2 weeks of IV antibiotic therapy, infection persisted with progressive extension of gas into the perinephric space on repeat imaging. The patient underwent a transplant nephrectomy with subsequent clinical recovery. This case illustrates that antibiotics alone are often inadequate to cure and preserve renal function in EPN despite immediate therapy. Furthermore, this patient underscores the risk of serious infection precipitated by urinary bladder catheterization in immunocompromised patients.
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PMID:Iatrogenic emphysematous pyelonephritis in a renal transplant patient. 1850 51

Nocturia, one of the most bothersome urologic symptoms, has been poorly classified and understood. Multiple factors may cause nocturia, such as behavioral or environmental factors and pathologic conditions, including cardiovascular disease, diabetes mellitus, lower urinary tract obstruction, anxiety or primary sleep disorders, and sleep apnea. Nocturia caused by any combination of these and other conditions may be attributed to nocturnal polyuria, diminished nocturnal or global bladder capacity, global 24-hour polyuria, or a combination of these factors. Distinction among these classes of nocturia is made by a simple arithmetic analysis of the 24-hour voiding diary. Nocturia has been poorly studied and only recently classified according to its etiology and pathogenesis. After reviewing the current state of knowledge, we present a scheme for rational diagnosis of patients suffering from loss of sleep due to nocturnal micturition. This article reviews the current state of knowledge and presents algorithms for the diagnosis and classification of nocturia.
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PMID:New aspects of the classification of nocturia. 1870 19

Peripartum acute renal failure is an important complication related to pregnancy leading to significant morbidity and mortality. Emphysematous pyelonephritis (EPN) is a severe necrotizing infection of the renal parenchyma, with formation of gas within the collecting system, renal parenchyma, or perirenal tissues. EPN is common in persons with diabetes or urinary tract obstruction. Herein we report a case of bilateral emphysematous pyelonephritis in a postpartum lady who had no evidence of diabetes or urinary tract obstruction. Management of this condition has traditionally been aggressive, and surgery has been considered mandatory. Our patient was managed successfully with antibiotics and supportive measures alone.
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PMID:An uncommon cause of postpartum renal failure--bilateral emphysematous pyelonephritis. 1921 18

Nocturia, one of the most bothersome of all urological symptoms, has previously been both poorly classified and understood. Multiple factors may result in nocturia, among which are pathological conditions such as cardiovascular disease, diabetes mellitus, lower urinary tract obstruction, anxiety or primary sleep disorders, and behavioral and environmental factors. Nocturia may be attributed to nocturnal polyuria (nocturnal urine overproduction), diminished nocturnal bladder capacity, polyuria or a combination of the three. These conditions can be distinguished by a simple arithmetic analysis of the patients 24-h voiding diary. After reviewing the current state of knowledge, a scheme for rational diagnosis and care of patients suffering from loss of sleep due to nocturnal micturition is presented in this article.
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PMID:Nocturia in women. 1980 72

Emphysematous pyelonephritis (EPN) is an acute necrotizing infection with gas presence in the kidney, perinephric space, and/or urinary collecting system that carries a bad prognosis. Some clinical conditions predispose to this entity, such as diabetes mellitus, urinary tract obstruction, and immune-incompetence. Immediate resuscitation, broad-spectrum antibiotics, percutaneous and surgical drainage, and emergent and delayed nephrectomy are therapeutic options that should be applied in a timely fashion. We report our experience of four patients with EPN. Two of the patients were kidney transplant recipients, one patient had bilateral urolithiasis, and one patient was an elderly patient with debilitated general condition and an abdominal mass that could not be defined. Late transplant nephrectomy was performed in one patient, and three patients were treated conservatively. Three patients died, including the patient who had transplant nephrectomy. One patient who presented with lithiasis showed a remarkable recovery with conservative management. The bacteria involved were E. Coli and a resistant Klebsiella. We conclude that EPN is a life-threatening condition that carries a bad prognosis. Early diagnosis is essential for a positive outcome. Therapeutic measures should be applied immediately after diagnosis. An aggressive approach including nephrectomy may be emergently required.
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PMID:Emphysematous pyelonephritis: a case report series of four patients with review of literature. 1983 58


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