Tibet Erdodru, Omer Aker, Tansel Kaplancan, Eren Erodlu
PURPOSE: We assessed the role of non-contrast spiral computerized tomography (CT) for prediction of a favorable clinical outcome in patients with ureterolithiasis, presenting with acute flank pain. MATERIALS AND METHODS: Consecutive 185 patients having acute flank pain were prospectively evaluated with physical examination, urinalysis and hemogram, and non-contrast spiral CT. Size (greatest width in mm), location, perinephric fat stranding, the degree of hydronephrosis, tissue rim sign and perinephric fluid were assessed with spontaneously passed and unpassed stones...
November 2002: International Braz J Urol: Official Journal of the Brazilian Society of Urology
D M Snyder, M A Steffey, S J Mehler, K J Drobatz, L R Aronson
AIMS: To examine the clinical signs, laboratory and radiographic findings, surgical technique, ureterolith composition, and post-operative outcomes in dogs managed surgically for ureterolithiasis to determine whether surgical removal of ureteroliths in dogs resulted in a positive clinical outcome. METHODS: The medical record database of a university veterinary hospital in Pennsylvania, USA, was searched for dogs that underwent surgery to remove obstructive ureteral calculi between 1990 and 2003...
February 2005: New Zealand Veterinary Journal
Yoshiyuki Kato, Kanji Sato, Akira Sata, Kazue Omori, Kishiko Nakajima, Kotaro Tokinaga, Takao Obara, Kazue Takano
A 31-year-old woman had ureterolithiasis related to hypercalcemia, and when she was admitted to our hospital ultrasonography and technetium-99 m sestamibi scintigraphy did not detect parathyroid abnormalities. Serum concentrations of calcium and intact parathyroid hormone were 9.7 mg/dl and 153 pg/ml, respectively, but subsequently increased to 13.5 mg/dl and decreased to 10 pg/ml, respectively. Diagnostic interview revealed that she had been taking excessive calcium supplements of 3,000 5,000 mg/day because she was worried about developing osteoporosis...
December 2004: Endocrine Journal
K Seitz
Since the middle to the end of the 80 s, the sonographic detection of diverticulitis has been increasingly improved. In a paper including a larger number of patients published in 1992, W. B. Schwerk demonstrated a high sensitivity and specificity. The detection of diverticulitis was the final entry into the chapter of acute abdominal sonography, after the diagnosis of gastrointestinal perforation, acute appendicitis and ureterolithiasis had been achieved with high reliability. Until then, diverticulitis was a classic surgical disease and a contrast enema with water-soluble contrast medium the diagnostic method of choice...
September 2004: Ultraschall in der Medizin
G Ege, H Akman, K Kuzucu, S Yildiz
PURPOSE: To determine the sensitivity of computed tomography (CT) scout view in detecting ureteral stones and whether CT scout radiography can replace plain film in the evaluation of patients with acute urinary tract colic. MATERIAL AND METHODS: Between January 2000 and 2002, 110 patients with ureterolithiasis were prospectively evaluated for the detection of ureteral stones on CT scout radiographs. The findings were compared with those of plain films. All patients were examined with plain film, CT scout radiography, and unenhanced helical CT...
July 2004: Acta Radiologica
Muhammad Zafar Rafique, Muhammad Uzair Usman, Tanveer-ul-Haq, Kashif Ashraf, Waseem Ahmed Memon
No abstract text is available yet for this article.
August 2004: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
Kuldeep K Vaswani, Adam El-Dieb, Kenneth M Vitellas, William F Bennett, James G Bova
Evaluation of patients with acute flank pain using helical computed tomography (CT) is a well-accepted, rapid, and safe procedure in the emergency setting. Various primary and secondary signs are described in the literature for evaluation of these patients. Our purpose is to demonstrate both the classical findings associated with ureteral calculi on unenhanced helical CT and atypical findings and potential pitfalls. We also provide readers with a systematic approach to interpreting unenhanced helical CT scans performed for acute flank pain...
March 2002: Emergency Radiology
Orlando Catalano, Antonio Nunziata, Fabio Sandomenico, Alfredo Siani
Several conditions can clinically mimic renal colic. We assessed the accuracy of non-contrast-enhanced helical CT and of ultrasonography (US) in offering an alternative explanation for flank pain. In a 3-year period, 181 patients with acute flank pain underwent US and non-contrast-enhanced helical CT in a blinded sequence. Their efficacy in detecting both alternative causes of pain and additional findings unrelated to the pain was assessed in 160 cases with a confirmed diagnosis. An alternative cause was found in 23 cases (14%)...
September 2002: Emergency Radiology
Nihat Satar, Sinan Zeren, Yidirim Bayazit, I Atilla Aridoğan, Bülent Soyupak, Zühtü Tansuğ
PURPOSE: We assess the safety and efficacy of rigid ureteroscopy for the treatment of pediatric ureterolithiasis. MATERIALS AND METHODS: The records of 33 children with an average age of 7.4 years (range 9 months to 15 years) treated with rigid ureteroscopy between May 1995 and July 2003 were reviewed. In 35 ureteral units use of a rigid 6.9 to 10Fr ureteroscope was planned for treating stones at various levels of the ureter. Stones were located in the upper ureter in 6 cases, middle ureter in 3 and lower ureter in 26...
July 2004: Journal of Urology
Suzan M Goldman, Salomão Faintuch, Sergio A Ajzen, Dejaldo M J Christofalo, Marcelo P Araújo, Valdemar Ortiz, Miguel Srougi, Philip J Kenney, Jacob Szejnfeld
OBJECTIVE: The objective of this study was to assess the diagnostic value of attenuation measurements of the kidney on unenhanced helical CT in patients with obstructive ureterolithiasis. MATERIALS AND METHODS: Consecutive unenhanced helical CT scans of patients referred for acute unilateral renal colic were retrospectively reviewed. Patients with CT evidence of other urinary system diseases were excluded. Included scans (n = 145) were assessed for ureteral stone and secondary signs of obstruction such as unilateral collecting system or ureteral dilatation, perinephric stranding, and periureteral edema...
May 2004: AJR. American Journal of Roentgenology
Sonal Chaudhary, Miranda Lee, Henry O Andrews, Noor N P Buchholz
BACKGROUND: In the past decades, the widespread use of cross-trigonal ureteral reimplants for the treatment of children with vesicoureteral reflux has resulted in a large population of patients with transversely lying ureters. As this population gets older they will consequently be entering an age group at higher risk for stone and urothelial cancer formation. If ureteroscopy becomes necessary, the transverse position of the ureter makes ureteric access often impossible. CASE PRESENTATION: We present the case of a young man who not only suffered from urolithiasis due to hyperparathyroidism, but also further jeopardized his treatment by omitting the fact that as a child he underwent Cohen reimplantation of the right ureter...
March 10, 2004: BMC Urology
J Yaqoob, M U Usman, V Bari, K Munir, F Mosharaf
OBJECTIVE: To determine the incidence of secondary signs of obstruction in patients with ureteral stones on unenhanced helical CT scans. MATERIAL AND METHODS: Three hundred consecutive patients with suspected renal colic referred by the emergency department for an unenhanced helical CT scan were evaluated. One hundred and thirty two patients with ureteric calculi were viewed prospectively for the secondary signs of obstruction, which include hydronephrosis, hydroureter, perinephric stranding, nephromegaly, periureteral edema and difference in attenuation between acutely obstructed kidney and unobstructed kidney...
January 2004: JPMA. the Journal of the Pakistan Medical Association
Natalie Zelenko, Deidre Coll, Arthur T Rosenfeld, Robert C Smith
OBJECTIVE: Unenhanced helical CT is the imaging method of choice when evaluating patients with acute flank pain and suspected ureterolithiasis. In addition to directly identifying stones in the lumen of the ureter, CT secondary signs of obstruction such as ureteral dilatation are frequently present and can be helpful in establishing a diagnosis. The purposes of this study were to define ureteral dilatation on unenhanced helical CT and determine the range of normal ureter size. MATERIALS AND METHODS: We retrospectively reviewed the unenhanced helical CT studies of 212 consecutive patients with acute flank pain whose CT scans showed acute ureterolithiasis...
April 2004: AJR. American Journal of Roentgenology
E Knöpfle, M Hamm, S Wartenberg, K Bohndorf
PURPOSE: To evaluate a low-dose, nonenhanced helical CT protocol for the diagnosis of renal colic using an effective dose equivalent of radiation not higher than that of intravenous urography. MATERIALS AND METHODS: A new low-dose helical-CT protocol (120 kV; 70 mA; rotation time 0.75 s; collimation 5 mm, pitch = 2) was used to examine 209 consecutive patients with symptoms of renal colic. The initial CT reports were compared with retrograde ureterography, ureteral endoscopy, stone retrieval, surgical or clinical findings...
December 2003: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
G Ege, H Akman, K Kuzucu, S Yildiz
AIM: The purpose of this study was to determine the incidence of secondary signs associated with ureteral stones on unenhanced helical computed tomography (CT) of patients with acute renal colic, and to correlate these with patient management and outcome. MATERIALS AND METHODS: One hundred and ten patients with ureterolithiasis were evaluated prospectively for the secondary signs of obstruction on unenhanced helical CT. Our attention was focused primarily on the presence or absence of seven secondary signs on unenhanced helical CT, including hydronephrosis, unilateral renal enlargement, perinephric oedema, unilateral absence of the white pyramid, hydroureter, periureteral oedema and lateroconal fascial thickening...
December 2003: Clinical Radiology
Joan P Heneghan, Keith A McGuire, Richard A Leder, David M DeLong, Terry Yoshizumi, Rendon C Nelson
PURPOSE: To determine the accuracy of unenhanced helical computed tomography (CT) performed at reduced milliampere-second, and therefore at a reduced patient radiation dose, by using conventional unenhanced helical CT as the standard. MATERIALS AND METHODS: Fifty patients with acute flank pain who weighed less than 200 lb (90 kg) were prospectively recruited for this study. Conventional helical CT scans were obtained with patients in the prone position by using 5-mm-thick sections, 140 kVp, 135-208 mAs (mean, 160 mAs), and a pitch of 1...
November 2003: Radiology
Takashi Kobayashi, Koji Nishizawa, Kenji Mitsumori, Keiji Ogura
PURPOSE: Hematuria is absent in a significant proportion of patients with acute ureterolithiasis. We determined whether time from pain onset has any impact on the sensitivity of hematuria tests in the diagnosis of ureterolithiasis. MATERIALS AND METHODS: We retrospectively reviewed the records of 537 patients with suspected acute unilateral renal colic during a 29-month period with regard to the interval between pain onset and urinalysis, including the dipstick test and microscopic red blood cell count as well as other clinical findings...
October 2003: Journal of Urology
No abstract text is available yet for this article.
July 1964: Revista Mexicana de Urología
No abstract text is available yet for this article.
March 1964: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
No abstract text is available yet for this article.
December 20, 1962: Nordisk Medicin
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