RESUMEN
OBJECTIVES: To determine the diagnostic accuracy of urinary cytology to diagnose bladder cancer and upper tract urothelial cancer (UTUC) as well as the outcome of patients with a positive urine cytology and normal haematuria investigations in patients in a multicentre prospective observational study of patients investigated for haematuria. PATIENT AND METHODS: The DETECT I study (clinicaltrials.gov NCT02676180) recruited patients presenting with haematuria following referral to secondary case at 40 hospitals. All patients had a cystoscopy and upper tract imaging (renal bladder ultrasound [RBUS] and/ or CT urogram [CTU]). Patients, where urine cytology were performed, were sub-analysed. The reference standard for the diagnosis of bladder cancer and UTUC was histological confirmation of cancer. A positive urine cytology was defined as a urine cytology suspicious for neoplastic cells or atypical cells. RESULTS: Of the 3 556 patients recruited, urine cytology was performed in 567 (15.9%) patients from nine hospitals. Median time between positive urine cytology and endoscopic tumour resection was 27 (IQR: 21.3-33.8) days. Bladder cancer was diagnosed in 39 (6.9%) patients and UTUC in 8 (1.4%) patients. The accuracy of urinary cytology for the diagnosis of bladder cancer and UTUC was: sensitivity 43.5%, specificity 95.7%, positive predictive value (PPV) 47.6% and negative predictive value (NPV) 94.9%. A total of 21 bladder cancers and 5 UTUC were missed. Bladder cancers missed according to grade and stage were as follows: 4 (19%) were ≥ pT2, 2 (9.5%) were G3 pT1, 10 (47.6%) were G3/2 pTa and 5 (23.8%) were G1 pTa. High-risk cancer was confirmed in 8 (38%) patients. There was a marginal improvement in sensitivity (57.7%) for high-risk cancers. When urine cytology was combined with imaging, the diagnostic performance improved with CTU (sensitivity 90.2%, specificity 94.9%) superior to RBUS (sensitivity 66.7%, specificity 96.7%). False positive cytology results were confirmed in 22 patients, of which 12 (54.5%) had further invasive tests and 5 (22.7%) had a repeat cytology. No cancer was identified in these patients during follow-up. CONCLUSIONS: Urine cytology will miss a significant number of muscle-invasive bladder cancer and high-risk disease. Our results suggest that urine cytology should not be routinely performed as part of haematuria investigations. The role of urine cytology in select cases should be considered in the context of the impact of a false positive result leading to further potentially invasive tests conducted under general anaesthesia.
Asunto(s)
Carcinoma de Células Transicionales/diagnóstico , Hematuria/patología , Hematuria/orina , Neoplasias Renales/diagnóstico , Neoplasias Ureterales/diagnóstico , Neoplasias de la Vejiga Urinaria/diagnóstico , Anciano , Carcinoma de Células Transicionales/complicaciones , Carcinoma de Células Transicionales/patología , Carcinoma de Células Transicionales/orina , Reacciones Falso Negativas , Reacciones Falso Positivas , Femenino , Hematuria/etiología , Humanos , Neoplasias Renales/complicaciones , Neoplasias Renales/patología , Neoplasias Renales/orina , Masculino , Persona de Mediana Edad , Clasificación del Tumor , Estadificación de Neoplasias , Valor Predictivo de las Pruebas , Estudios Prospectivos , Tomografía Computarizada por Rayos X , Ultrasonografía , Neoplasias Ureterales/complicaciones , Neoplasias Ureterales/patología , Neoplasias Ureterales/orina , Neoplasias de la Vejiga Urinaria/complicaciones , Neoplasias de la Vejiga Urinaria/patología , Neoplasias de la Vejiga Urinaria/orina , Orina/citología , UrografíaRESUMEN
PURPOSE: Computerized tomography urogram is recommended when investigating patients with hematuria. We determined the incidence of urinary tract cancer and compared the diagnostic accuracy of computerized tomography urogram to that of renal and bladder ultrasound for identifying urinary tract cancer. MATERIALS AND METHODS: The DETECT (Detecting Bladder Cancer Using the UroMark Test) I study is a prospective observational study recruiting patients 18 years old or older following presentation with macroscopic or microscopic hematuria at a total of 40 hospitals. All patients underwent cystoscopy and upper tract imaging comprising computerized tomography urogram and/or renal and bladder ultrasound. RESULTS: A total of 3,556 patients with a median age of 68 years were recruited in this study, of whom 2,166 underwent renal and bladder ultrasound, and 1,692 underwent computerized tomography urogram in addition to cystoscopy. The incidence of bladder, renal and upper tract urothelial cancer was 11.0%, 1.4% and 0.8%, respectively, in macroscopic hematuria cases. Patients with microscopic hematuria had a 2.7%, 0.4% and 0% incidence of bladder, renal and upper tract urothelial cancer, respectively. The sensitivity and negative predictive value of renal and bladder ultrasound to detect renal cancer were 85.7% and 99.9% but they were 14.3% and 99.7%, respectively, to detect upper tract urothelial cancer. Renal and bladder ultrasound was poor at identifying renal calculi. Renal and bladder ultrasound sensitivity was lower than that of computerized tomography urogram to detect bladder cancer (each less than 85%). Cystoscopy had 98.3% specificity and 83.9% positive predictive value. CONCLUSIONS: Computerized tomography urogram can be safely replaced by renal and bladder ultrasound in patients who have microscopic hematuria. The incidence of upper tract urothelial cancer is 0.8% in patients with macroscopic hematuria and computerized tomography urogram is recommended. Patients with suspected renal calculi require noncontrast renal tract computerized tomography. Imaging cannot replace cystoscopy to diagnose bladder cancer.
Asunto(s)
Hematuria/diagnóstico por imagen , Neoplasias Renales/diagnóstico por imagen , Seguridad del Paciente , Tomografía Computarizada por Rayos X/métodos , Ultrasonografía Doppler/métodos , Neoplasias de la Vejiga Urinaria/diagnóstico por imagen , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Cistoscopía/métodos , Femenino , Hematuria/patología , Humanos , Neoplasias Renales/patología , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Medición de Riesgo , Sensibilidad y Especificidad , Índice de Severidad de la Enfermedad , Neoplasias de la Vejiga Urinaria/patología , Urografía/métodosRESUMEN
PURPOSE: Informed by prior research and influenced by concerns that the COVID-19 pandemic heightened social isolation, this project examined the impact of a 12-month long letter writing project on levels of loneliness. METHOD: Through partnerships with local anti-poverty agencies, pen pals were paired between MSW students and community members who utilize services at these organizations. Participants completed the UCLA Loneliness Scale before and after the intervention. RESULTS: We found a mean decrease in loneliness at the end of the intervention. DISCUSSION: Letter writing was a successful way to attend to loneliness due to its accessibility to the participants. Our letter writing intervention is different in many ways from e-mail and texting. Participants noted that the waiting process between letter gave them time to think more deeply about their response as well as event to look forward to (e.g. getting mail). We found that the low-tech aspects of the project might have been helpful to some participants. CONCLUSION: Letter writing is an easily replicable, low-cost, low-tech activity for use by practitioners, which may be useful in a variety of social work settings to reduce loneliness.
Asunto(s)
COVID-19 , Soledad , Humanos , Pandemias , Aislamiento Social , EscrituraRESUMEN
Self-care is a great concept and telehealth can give any patient with a long term condition the confidence to understand and manage their health better. Patients are usually surprised at how small the equipment is and how easy it is to use. Giving patients control provides peace of mind and enables nurses to work more efficiently and effectively.
Asunto(s)
Enfermería en Salud Comunitaria/organización & administración , Servicios de Salud Comunitaria/organización & administración , Autocuidado , Telemedicina , Humanos , Reino UnidoRESUMEN
There remains a lack of consensus among guideline relating to which patients require investigation for haematuria. We determined the incidence of urinary tract cancer in a prospective observational study of 3556 patients referred for investigation of haematuria across 40 hospitals between March 2016 and June 2017 (DETECT 1; ClinicalTrials.gov: NCT02676180) and the appropriateness of age at presentation in cases with visible (VH) and nonvisible (NVH) haematuria. The overall incidence of urinary tract cancer was 10.0% (bladder cancer 8.0%, renal parenchymal cancer 1.0%, upper tract transitional cell carcinoma 0.7%, and prostate cancer 0.3%). Patients with VH were more likely to have a diagnosis of urinary tract cancer compared with NVH patients (13.8% vs 3.1%). Older patients, male gender, and smoking history were independently associated with urinary tract cancer diagnosis. Of bladder cancers diagnosed following NVH, 59.4% were high-risk cancers, with 31.3% being muscle invasive. The incidence of cancer in VH patients <45 yr of age was 3.5% (n=7) and 1.0% (n=4) in NVH patients <60 yr old. Our results suggest that patients with VH should be investigated regardless of age. Although the risk of urinary tract cancer in NVH patients is low, clinically significant cancers are detected below the age threshold for referral for investigation. PATIENT SUMMARY: This study highlights the requirement to investigate all patients with visible blood in the urine and an age threshold of ≥60 yr, as recommended in some guidelines, as the investigation of nonvisible blood in the urine will miss a significant number of urinary tract cancers. Patient preference is important, and evidence that patients are willing to submit to investigation should be considered in reaching a consensus recommendation for the investigation of haematuria. International consensus to guide that patients will benefit from investigation should be developed.
Asunto(s)
Hematuria/diagnóstico , Hematuria/etiología , Neoplasias Urológicas/diagnóstico , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Medición de Riesgo , Neoplasias Urológicas/complicaciones , Adulto JovenRESUMEN
A background electrolyte (BGE) containing a 100 mM concentration of an alkylammonium cation with ethyl, propyl or butyl groups provides an excellent medium for separation of anions by capillary electrophoresis (CE). Two major effects were noted. Use of one of a series of alkylammonium cations in the BGE at a selected pH provides a simple and effective way to vary and control electroosmotic flow (EOF) over a broad range. It is believed that the alkylammonium cations are coated onto the capillary surface through a reversible dynamic equilibrium. Secondly, alkylammonium cations modify the electrophoretic migration of sample anions and the electroosmotic migration of neutral organic analytes by association interaction. This selective interaction results in improved anion separations and permits the simultaneous separation of neutral analytes. The degree of association interaction varies with the bulk and hydrophobicity of the alkylammonium cations. Incorporation of an aliphatic amine salt of moderate molecular weight in the running electrolyte provides a valuable new way to vary the migration times of sample anions and to optimize their resolution. The interactions between alkylammonium cations and sample anions or neutral organics appear to take place entirely within the liquid phase and do not require a polymeric or micellar pseudo phase.
Asunto(s)
Aniones/análisis , Electroforesis Capilar/métodos , Compuestos de Amonio Cuaternario/química , Cationes/química , Electrólitos/química , Electroforesis Capilar/instrumentación , Concentración de Iones de Hidrógeno , Reproducibilidad de los ResultadosRESUMEN
BACKGROUND: The presence of macroenzymes can cause significant diagnostic confusion and their detection can involve relatively cumbersome analytical procedures. METHODS: Using a simplified polyethylene glycol precipitation technique and isoenzyme electrophoresis, this report describes the construction of reference ranges of precipitable activity for each of seven commonly measured enzymes in plasma. RESULTS: The proposed reference ranges are reported. Since introducing the protocol, 12 cases of macroenzymaemia have been encountered. Three typical case histories are described in some detail. CONCLUSIONS: The polyethylene glycol precipitation method has thus far proved to be a simple and effective additional test for the detection of macroenzymes when the plasma enzyme activity is elevated.
Asunto(s)
Análisis Químico de la Sangre/métodos , Enzimas/sangre , Polietilenglicoles/química , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Precipitación Química , Niño , Errores Diagnósticos , Femenino , Humanos , Isoenzimas/sangre , Masculino , Persona de Mediana Edad , Valores de ReferenciaRESUMEN
INTRODUCTION: This study sought to identify how psychosocial topics related to women's health are taught and assessed in the obstetrics/gynecology program of American medical schools, and what issues may prevent or promote their instruction. METHODS: A questionnaire was distributed to the ob/gyn clerkship director of every US medical school. Directors were asked whether each of four recommended topics were covered in their curricula. They were also asked about barriers to instructing topics not taught, and the importance of these topics. RESULTS: Out of 136 US medical schools, 57 questionnaires were returned (response rate = 40.4%). In all, 27 schools (48%) include formal training in pregnancy-related mood disorders, 33 (58%) include pre-menstrual syndrome/pre-menstrual dysphoric disorder, 29 (51%) include female sexual dysfunction and 45 (79%) include violence against women. Six schools (12%) listed none of these topics as taught. All but three of the clerkship directors agreed that psychosocial topics are important. The most common reason given for lack of instruction was insufficient time allotted. CONCLUSIONS: Despite agreement on their importance, many US medical schools do not teach psychosocial aspects of women's health. Addressing the barriers to teaching these topics would help provide medical students with more opportunities to learn about these issues.