We evaluated the diagnostic utility of urinary alpha1-microglobulin, alpha2-macroglobulin and albumin in the diagnosis of acute prostatitis. We studied 133 men (43 +/- 17 years) with, and a reference population (n=36, 41 +/- 16 years) without, urinary tract infection. Prostatectomy samples were used to study the potential interference between prostatic proteins and protein analysis. Urinary alpha2-macroglobulin/albumin ratio was significantly lower in prostatitis compared to the reference population, cystitis or acute pyelonephritis (p < 0.0001). Low alpha2-macroglobulin concentrations in prostatitis are due to inhibition (p = 0.0001) of the immune reaction between alpha2-macroglobulin in presence of polyclonal rabbit antibodies (used for immunonephelometry) by soluble prostatic proteins (+/- 60 kDa) which appear in urine in acute prostatitis. The urinary alpha1-microglobulin/creatinine ratio diagnoses acute pyelonephritis (sensitivity 100% and specificity 87%) and the urinary alpha2-macroglobulin/albumin ratio diagnoses acute prostatitis (sensitivity 100% and specificity of 90%). Stepwise multinomial logistic regression analysis reveals that urinary alpha1-microglobulin, alpha2-macroglobulin, albumin and creatinine provide optimal differentiation between acute pyelonephritis and acute prostatitis (pseudo R2=0.83; Loglikelihood -30.55, p < 0.000001). In conclusion, the combination of hematuria and absence of urinary alpha-2-macroglobulin is diagnostic for acute prostatitis. Even without hematuria, alpha2-macroglobulin remains lower compared to patients without prostatitis.
Comparing the mechanisms underlying nocturnal urine production between patients with spinal cord injury and controls revealed important differences. Spinal cord injured patients showed absent circadian rhythms in the renal clearance of creatinine (glomerular filtration), free water (water diuresis) and solutes such as sodium and urea (solute diuresis). Future research must be done to evaluate the role of patient stratification to find the most effective and safe treatment or combination of treatments for spinal cord injured patients with complaints or complications related to nocturnal polyuria.
Intractable aspiration is a serious, often life-threatening condition due to its potential impact on pulmonary function. Aspiration requires therapeutic measures, starting with conservative management but often necessitating surgical treatment. The basic surgical principle is to separate the alimentary and respiratory tracts through a variety of procedures which, unfortunately, nearly all result in the loss of phonation, with the exception of total laryngectomy (TL) which includes the placement of an indwelling voice prosthesis. In this study, we present a modified laryngotracheal separation (LTS) technique that, we believe, offers multiple advantages compared to standard TL. After reviewing the medical records of 35 patients with intractable aspiration who have undergone LTS, we describe the surgical technique and present the postoperative result. In a second surgical procedure about two months following LTS, we aimed to achieve voice restoration by placement of an indwelling voice prosthesis. Intractable aspiration was successfully treated in all patients. Placement of an indwelling voice prosthesis during a second operation was successful in 15 patients, representing the largest reported cohort thus far. LTS is a reliable surgical technique to treat intractable aspiration, with restoration of oral intake, thereby improving the general condition and quality of life of these unfortunate patients. Furthermore, voice restoration can be achieved in selected patients, by placement of a voice prosthesis.
Background: Intermittent self-catheterization (ISC) is by far the most appealing therapy to achieve a complete bladder emptying in patients with neurogenic lower urinary tract dysfunction (NLUTD). Four questionnaires have been developed in French in order to assess patient’s satisfaction, difficulties and acceptance of this technique. Objectives: The aim of this study was to translate, culturally adapt and validate Dutch versions of the Intermittent Catheterization Satisfaction Questionnaire (InCaSaQ), the Intermittent Catheterization Acceptance Test (ICAT), the Intermittent Self Catheterization Questionnaire (ISCQ) and the Intermittent Catheterization Difficulty Questionnaire (ICDQ). Methods: (1) Translation and cross-cultural adaptation of the questionnaires were performed according to the standardized guidelines. (2) The test of the pre-final version was performed by a group of bilingual lay people by comparing the original version of the questionnaires and the back translated one, assessing the comparability of language and comparability of interpretation. (3) Problematic issues were reviewed for correction. (4) Reliability was examined by intra-class correlation coefficients (ICC) statistics and Cronbach alpha analysis. Results: Pre-test by 45 raters who are fluent in the source language led to an adapted and improved version of the translated questionnaires. Fifty native Dutch-speaking patients performing ISC (>6 months) due to an NLUTD were prospectively included. InCaSaQ, ICAT, ISCQ and ICDQ showed good internal consistency (α respectively (test and re-test): 0.79–0.88, 0.88–0.92, 0.85–0.88, and 0.88–0.86) and reproducibility (ICC respectively 0.77, 0.84, 0.84, and 0.87). Conclusion: The translated versions of InCaSaQ, ICAT, ISCQ and ICDQ are reliable and valid, allowing self-reported assessment of satisfaction, acceptance, difficulties and quality of life related to ISC in Dutch-speaking patients with NLUTD.
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