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Chronic urinary obstruction

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https://www.readbyqxmd.com/read/28194441/deletion-of-neuropilin-2-enhances-detrusor-contractility-following-bladder-outlet-obstruction
#1
Evalynn Vasquez, Vivian Cristofaro, Stefan Lukianov, Fiona C Burkhard, Ali Hashemi Gheinani, Katia Monastyrskaya, Diane R Bielenberg, Maryrose P Sullivan, Rosalyn M Adam
Chronic urethral obstruction and the ensuing bladder wall remodeling can lead to diminished bladder smooth muscle (BSM) contractility and debilitating lower urinary tract symptoms. No effective pharmacotherapy exists to restore BSM contractile function. Neuropilin 2 (Nrp2) is a transmembrane protein that is highly expressed in BSM. Nrp2 deletion in mice leads to increased BSM contraction. We determined whether genetic ablation of Nrp2 could restore BSM contractility following obstruction. Partial bladder outlet obstruction (pBOO) was created by urethral occlusion in mice with either constitutive and ubiquitous, or inducible smooth muscle-specific deletion of Nrp2, and Nrp2-intact littermates...
February 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28139223/urinary-11-dehydro-thromboxane-b2-and-mortality-in-patients-with-stable-coronary-artery-disease
#2
Peter A McCullough, Anupama Vasudevan, Mohanakrishnan Sathyamoorthy, Jeffrey M Schussler, Carlos E Velasco, Luis R Lopez, Caren Swift, Margarita Peterson, Jenna Bennett-Firmin, Raphael Schiffmann, Teodoro Bottiglieri
Antiplatelet therapy with aspirin has been shown to reduce adverse outcomes in patients with coronary artery disease (CAD). Aspirin irreversibly inhibits platelet cyclooxygenase-1 and attenuates thromboxane A2 (TXA2)-mediated platelet aggregation, but there is variable suppression of cyclooxygenase-1. From a cohort of patients with stable CAD, we performed blinded, detailed chart abstraction, and measured urinary 11-dehydro-thromboxane B2 (11dhTxB2), an inactive metabolite of TxA2 from frozen samples. There were 327 men (73%) and 122 women (27%) with a mean age (±SD) of 67 ± 10 and 65 ± 10 years, respectively...
January 5, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28137498/evaluation-of-urinary-desmosines-as-a-noninvasive-diagnostic-biomarker-in-patients-with-idiopathic-pleuroparenchymal-fibroelastosis-ppfe
#3
Yoshiyuki Oyama, Noriyuki Enomoto, Yuzo Suzuki, Masato Kono, Tomoyuki Fujisawa, Naoki Inui, Yutaro Nakamura, Shigeki Kuroishi, Koshi Yokomura, Mikio Toyoshima, Shiro Imokawa, Keiji Oishi, Satoshi Watanabe, Kazuo Kasahara, Tomohisa Baba, Takashi Ogura, Hiroshi Ishii, Kentaro Watanabe, Yasuhiko Nishioka, Takafumi Suda
BACKGROUND: Pleuroparenchymal fibroelastosis (PPFE) is a rare interstitial pneumonia with upper lobe predominance and fibroelastosis. Although definite diagnosis requires surgical lung biopsy (SLB), SLB is often difficult because of its complications such as refractory pneumothorax. OBJECTIVE: To evaluate urinary desmosines (degradation product of mature elastin) as a novel biomarker in patients with PPFE. METHODS: Biopsy-proven patients with PPFE (n = 14) were prospectively enrolled...
February 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28133935/post-transplant-immune-complex-nephritis-in-a-patient-with-systemic-lupus-erythematosus-associated-with-anca-vasculitis
#4
Carlos Sanchez, Alejandra Rebolledo, Junior Gahona, Mauricio Rojas, Raquel Jiménez, Aurora Bojórquez
Nearly 20% of SLE corresponds to the pediatric population, and 75% of them have kidney involvement representing an important etiology of chronic kidney disease. A correlation between SLE and ANCA-associated vasculitis has been identified as an overlapping syndrome. Kidney allograft recurrence is rare in SLE when disease control is achieved and with nowadays immunosuppression treatment. Histologic transformation is unusual, especially when there are negative serologic markers and no immune complex deposition reported in native kidneys...
January 29, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28124532/the-burden-of-chronic-ureteral-stenting-in-cervical-cancer-survivors
#5
Robert A Goldfarb, Yunhua Fan, Stephanie Jarosek, Sean P Elliott
PURPOSE: Ureteral obstruction in cervical cancer occurs in up to 11% of patients, many of whom undergo ureteral stenting. Our aim was to describe the patient burden of chronic ureteral stenting in a population-based cohort by detailing two objectives: (1) the frequency of repeat procedures for ureteral obstruction; and, (2) the frequency of urinary adverse effects (UAEs) (e.g., lower urinary tract symptoms, flank pain). MATERIALS AND METHODS: From SEER-Medicare, we identified 202 women who underwent ureteral stent placement prior to or following cervical cancer treatment...
January 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28114931/procalcitonin-guided-diagnosis-and-antibiotic-stewardship-revisited
#6
REVIEW
Ramon Sager, Alexander Kutz, Beat Mueller, Philipp Schuetz
Several controlled clinical studies have evaluated the potential of the infection biomarker procalcitonin (PCT) to improve the diagnostic work-up of patients with bacterial infections and its influence on decisions regarding antibiotic therapy. Most research has focused on lower respiratory tract infections and critically ill sepsis patients. A clinical utility for PCT has also been found for patients with urinary tract infections, postoperative infections, meningitis, and patients with acute heart failure with possible superinfection (i...
January 24, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28075040/n-acetyl-seryl-aspartyl-lysyl-proline-mediates-the-anti-fibrotic-properties-of-captopril-in-unilateral-ureteric-obstructed-balb-c-mice
#7
Gary Cw Chan, Hao Jia Wu, Kam Wa Chan, Stella Yiu, Ailis Zou, Xiao Ru Huang, Hui Yao Lan, Kar Neng Lai, Sydney Cw Tang
BACKGROUND: Angiotensin-converting enzyme inhibitors (ACEi) are widely employed to deter the progression of chronic kidney disease (CKD). Besides controlling hypertension and reduction of intra-glomerular pressure, ACEi appear to have anti-fibrotic effects in the renal cortex. N-acetyl-seryl-aspartyl-lysyl-proline (Ac-SDKP), an endogenous tetrapeptide that is degraded by ACE, has also been shown to ameliorate the pro-fibrotic phenotype displayed in CKD in our recent study. Whether the anti-fibrotic properties of ACEi are mediated by Ac-SDKP has not been fully investigated...
January 11, 2017: Nephrology
https://www.readbyqxmd.com/read/28005240/complicated-pregnancies-in-inherited-distal-renal-tubular-acidosis-importance-of-acid-base-balance
#8
Harald Seeger, Peter Salfeld, Rüdiger Eisel, Carsten A Wagner, Nilufar Mohebbi
Inherited distal renal tubular acidosis (dRTA) is caused by impaired urinary acid excretion resulting in hyperchloremic metabolic acidosis. Although the glomerular filtration rate (GFR) is usually preserved, and hypertension and overt proteinuria are absent, it has to be considered that patients with dRTA also suffer from chronic kidney disease (CKD) with an increased risk for adverse pregnancy-related outcomes. Typical complications of dRTA include severe hypokalemia leading to cardiac arrhythmias and paralysis, nephrolithiasis and nephrocalcinosis...
December 22, 2016: Journal of Nephrology
https://www.readbyqxmd.com/read/28001292/predictors-for-unplanned-hospitalization-of-new-home-care-clients
#9
Jukka K Rönneikkö, Matti Mäkelä, Esa R Jämsen, Heini Huhtala, Harriet Finne-Soveri, Anja Noro, Jaakko N Valvanne
OBJECTIVES: To identify factors predicting unplanned hospitalization of new home care clients using the Resident Assessment Instrument for Home Care (RAI-HC). DESIGN: A register-based study based on RAI-HC assessments and nationwide hospital discharge records. SETTING: Municipal home care services in Finland. PARTICIPANTS: New Finnish home care clients aged 63 and older (N = 15,700). MEASUREMENTS: Information from home care clients' first RAI-HC assessment was connected to information regarding their first hospitalization over 1 year of follow-up...
December 21, 2016: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/27999595/seborrheic-keratoses-as-the-first-sign-of-bladder-carcinoma-case-report-of-leser-tr%C3%A3-lat-sign-in-a-rare-association-with-urinary-tract-cancer
#10
Aline Stollmeier, Bernardo Augusto Rosario, Bruna Loise Mayer, Gibran Avelino Frandoloso, Francisco Luiz Gomide Mafra Magalhães, Gustavo Lenci Marques
Introduction. Skin disorders can be the first manifestation of occult diseases. The recognition of typical paraneoplastic dermatoses may anticipate the cancer diagnosis and improve its prognosis. Although rarely observed, the sudden appearance and/or rapid increase in number and size of seborrheic keratoses can be associated with malignant neoplasms, known as the sign of Leser-Trélat. The aim of this report is to unveil a case of a patient whose recently erupted seborrheic keratoses led to investigation and consequent diagnosis of bladder cancer...
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27993290/increased-levels-of-prostaglandin-e-major-urinary-metabolite-pge-mum-in-chronic-fibrosing-interstitial-pneumonia
#11
Tsugumi Horikiri, Hiromichi Hara, Nayuta Saito, Jun Araya, Naoki Takasaka, Hirofumi Utsumi, Haruhiko Yanagisawa, Mitsuo Hashimoto, Yutaka Yoshii, Hiroshi Wakui, Shunsuke Minagawa, Takeo Ishikawa, Kenichiro Shimizu, Takanori Numata, Seiji Arihiro, Yumi Kaneko, Katsutoshi Nakayama, Tomokazu Matsuura, Masaaki Matsuura, Mutsunori Fujiwara, Isao Okayasu, Satoru Ito, Kazuyoshi Kuwano
BACKGROUND: Dysregulation of the prostaglandin E2 (PGE2) signaling pathway has been implicated in interstitial pneumonia (IP) pathogenesis. Due to the unstable nature of PGE2, available detection methods may not precisely reflect PGE2 levels. We explored the clinical usefulness of measuring stable prostaglandin E-major urinary metabolite (PGE-MUM) with respect to pathogenesis and extent of chronic fibrosing IP (CFIP), including idiopathic pulmonary fibrosis (IPF), as PGE-MUM is reflective of systemic PGE2 production...
January 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/27965420/microalbuminuria-in-subjects-with-copd-relationship-to-the-new-version-of-global-initiative-for-chronic-obstructive-lung-disease-staging
#12
Fulsen Bozkus, Nursel Dikmen, Anil Samur
BACKGROUND: Microalbuminuria, used as a marker of endothelial dysfunction, is a predictor of mortality for any reason and of cardiovascular events. Recent research on the management of COPD has focused more on comorbidities, including cardiovascular events. The objective of this study was to investigate the incidence of microalbuminuria and whether it is associated with physiological and clinical features in a subject group that was classified in line with the new version of the Global Initiative for Chronic Obstructive Lung Disease stages...
December 13, 2016: Respiratory Care
https://www.readbyqxmd.com/read/27929243/epididymitis-an-overview
#13
John R McConaghy, Bethany Panchal
Inflammation of the epididymis, or epididymitis, is commonly seen in the outpatient setting. Etiology and treatment are based on patient age and the likely causative organisms. Epididymitis presents as the gradual onset of posterior scrotal pain that may be accompanied by urinary symptoms such as dysuria and urinary frequency. Physical findings include a swollen and tender epididymis with the testis in an anatomically normal position. Although the etiology is largely unknown, reflux of urine into the ejaculatory ducts is considered the most common cause of epididymitis in children younger than 14 years...
November 1, 2016: American Family Physician
https://www.readbyqxmd.com/read/27924790/can-the-lower-urinary-tract-storage-symptoms-be-completely-resolved-after-plasmakinetic-enucleation-of-the-prostate
#14
Bing-Kun Li, Bin-Shen Chen, Yu-Hong Xin, Chun-Xiao Liu, Shao-Bo Zheng, Ya-Wen Xu, Hu-Lin Li, Yong Zou, Li-Ping Li
The aim of this study was to determine whether the lower urinary tract storage symptoms of benign prostatic obstruction (BPO) could be completely resolved after plasmakinetic enucleation of the prostate (PKEP) and the possible predictors of persistent symptoms. Two hundred and sixty-seven cases of BPO performed PKEP from July 2008 to June 2009 were retrospectively analyzed. Five-year postoperative data were collected and compared with the preoperative data. According to the urodynamic results, the patients were divided into involuntary detrusor contraction (IDC) group (n = 95) and no IDC group (n = 172) preoperatively; the patients with IDC were divided into IDC-persistent group (n = 33) and IDC-resolved group (n = 62) after PKEP...
December 2, 2016: Asian Journal of Andrology
https://www.readbyqxmd.com/read/27920972/potentially-preventable-hospitalizations-for-acute-and-chronic-conditions-in-alaska-2010-2012
#15
Prabhu P Gounder, Sara M Seeman, Robert C Holman, Alice Rarig, Mary K McEwen, Claudia A Steiner, Michael L Bartholomew, Thomas W Hennessy
OBJECTIVE: The U.S. Agency for Healthcare Research and Quality's Prevention Quality Indicators comprise acute and chronic conditions for which hospitalization can be potentially prevented by high-quality ambulatory care. The Healthy Alaska 2020 initiative (HA2020) targeted reducing potentially preventable hospitalizations (PPH) for acute and chronic conditions among its health indicators. We estimated the PPH rate for adults aged ≥ 18 years in Alaska during 2010-2012. METHODS: We conducted a cross-sectional analysis of state-wide hospital discharge data obtained from the Healthcare Cost and Utilization Project and the Indian Health Service...
December 2016: Preventive Medicine Reports
https://www.readbyqxmd.com/read/27915241/xanthogranulomatous-pyelonephritis-presenting-as-proteus-preperitoneal-abscess
#16
Yuyi Yeow, Yew-Lam Chong
Xanthogranulomatous pyelonephritis (XGPN) is a rare form of chronic pyelonephritis with progressive loss of renal function. Commonly, obstructing urinary calculi are seen. It is difficult to differentiate between XGPN and malignancy in many cases, and the diagnosis is usually only confirmed post-operatively upon histopathological examination of the specimen. Surgical treatment is often the main treatment modality due to suspicion for malignancy. Here, we present a case of XGPN that presented with abdominal distension, which was eventually discovered to be due to a preperitoneal abscess...
December 2, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/27876076/bladder-outlet-obstruction-a-rare-complication-of-the-neglected-schistosome-schistosoma-haematobium-two-case-reports-and-public-health-challenges
#17
Valirie Ndip Agbor, Tsi Njim, Franklin Ngu Mbolingong
BACKGROUND: Schistosomiasis is a severe parasitic infestation with debilitating complications and is the third most devastating tropical disease in the world. It is one of the neglected tropical diseases (NTDs) with a high disease-burden. We present two rare cases of bladder outlet obstruction: one which led to a chronic kidney disease and ultimately death and a second which recovered after treatment with praziquantel. CASE PRESENTATIONS: A 72 year old male presented with lower urinary tract symptoms which culminated in an episode of acute urinary retention...
November 22, 2016: BMC Research Notes
https://www.readbyqxmd.com/read/27854510/variation-in-postsepsis-readmission-patterns-a-cohort-study-of-veterans-affairs-beneficiaries
#18
Hallie C Prescott
RATIONALE: Rehospitalization is common after sepsis, but little is known about the variation in readmission patterns across patient groups and care locations. OBJECTIVES: To examine the variation in postsepsis readmission rates and diagnoses by patient age, nursing facility use, admission year, and hospital among U.S. Veterans Affairs (VA) beneficiaries. METHODS: Observational cohort study of VA beneficiaries who survived a sepsis hospitalization (2009-2011) at 114 VA hospitals, stratified by age (<65 vs...
February 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27842627/polyarteritis-nodosa-presenting-as-a-bladder-outlet-obstruction
#19
M Borkum, H Y Abdelrahman, R Roberts, A A Kalla, I G Okpechi
Polyarteritis nodosa (PAN) of the urinary tract is rare. An unusual case of systemic PAN involving the bladder neck is described. A 27-year-old man, with known diastolic hypertension diagnosed 2 years earlier, was admitted with chronic urinary obstruction complicated by hydronephrosis. He had symptoms of myalgia and weight loss, was afebrile but had an elevated erythrocyte sedimentation rate and acute-on-chronic renal impairment. All virological and serological tests including hepatitis B and anti-neutrophil cytoplasmic antibody were negative...
November 2, 2016: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/27832323/deep-pelvic-endometriosis-a-radiologist-s-guide-to-key-imaging-features-with-clinical-and-histopathologic-review
#20
REVIEW
Ayeh Darvishzadeh, Wendaline McEachern, Thomas K Lee, Priya Bhosale, Ali Shirkhoda, Christine Menias, Chandana Lall
While endometriosis typically affects the ovaries, deep infiltrating endometriosis can affect the gastrointestinal tract, urinary tract, and deep pelvis, awareness of which is important for radiologists. Symptoms are nonspecific and can range from chronic abdominal and deep pelvic pain to nausea, vomiting, diarrhea, constipation, hematuria, and rectal bleeding. Ultrasound and computed tomography may show nonspecific soft-tissue density masses causing bowel obstruction and hydronephrosis. This constellation of presenting symptoms and imaging evidence is easily mistaken for other pathologies including infectious gastroenteritis, diverticulitis, appendicitis, and malignancy, which may lead to unnecessary surgery or mismanagement...
December 2016: Abdominal Radiology
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