A Decision Analysis Evaluating Screening for Kidney Cancer Using Focused Renal Ultrasound

Background Screening for renal cell carcinoma (RCC) has been identified as a key research priority; however, no randomised control trials have been performed. Value of information analysis can determine whether further research on this topic is of value. Objective To determine (1) whether current evidence suggests that screening is potentially cost effective and, if so, (2) in which age/sex groups, (3) identify evidence gaps, and (4) estimate the value of further research to close those gaps. Design, setting, and participants A decision model was developed evaluating screening in asymptomatic individuals in the UK. A National Health Service perspective was adopted. Intervention A single focused renal ultrasound scan compared with standard of care (no screening). Outcome measurements and statistical analysis Expected lifetime costs, quality-adjusted life years (QALYs), and incremental cost-effectiveness ratio (ICER), discounted at 3.5% per annum. Results and limitations Given a prevalence of RCC of 0.34% (0.18–0.54%), screening 60-yr-old men resulted in an ICER of £18 092/QALY (€22 843/QALY). Given a prevalence of RCC of 0.16% (0.08–0.25%), screening 60-yr-old women resulted in an ICER of £37 327/QALY (€47 129/QALY). In the one-way sensitivity analysis, the ICER was <£30 000/QALY as long as the prevalence of RCC was ≥0.25% for men and ≥0.2% for women at age 60 yr. Given the willingness to pay a threshold of £30 000/QALY (€37 878/QALY), the population-expected values of perfect information were £194 million (€244 million) and £97 million (€123 million) for 60-yr-old men and women, respectively. The expected value of perfect parameter information suggests that the prevalence of RCC and stage shift associated with screening are key research priorities. Conclusions Current evidence suggests that one-off screening of 60-yr-old men is potentially cost effective and that further research into this topic would be of value to society. Patient summary Economic modelling suggests that screening 60-yr-old men for kidney cancer using ultrasound may be a good use of resources and that further research on this topic should be performed

Renal cell carcinoma with a tumor thrombus in the ureter: a case report

<p>Abstract</p> <p>Background</p> <p>Renal cell carcinoma (RCCs) is the most common malignancy of the kidney. When RCC progresses, it is known to form tumor thrombus in the renal vein and/or inferior vena cava. However, RCC does not normally form tumor thrombus in the ureter or renal pelvis.</p> <p>Case presentation</p> <p>A 43-year-old man presented to our department for the treatment of a renal tumor with asymptomatic gross hematuria. In a dynamic CT study, contrast enhancement revealed a tumor suspected to be RCC, but atypical finding as a tumor thrombus that filled the renal pelvis and the whole ureter was also observed. Nephroureterectomy was performed, and the tumor was diagnosed histopathologically as RCC.</p> <p>Conclusion</p> <p>We report here a very rare case of RCC with a tumor thrombus in the whole ureter.</p

Low CAIX expression and absence of VHL gene mutation are associated with tumor aggressiveness and poor survival of clear cell renal cell carcinoma.

International audienceWe attempted to describe, in a series of clear cell renal cell carcinoma (RCC), the relationship between CAIX expression, VHL gene mutations, tumor characteristics and outcome. Radical nephrectomy was performed in 100 patients. Genomic DNA was extracted from frozen tumor samples. Four amplimers covering the whole coding sequence of the VHL gene were synthesized by PCR and sequenced. The monoclonal antibody M75 was used to evaluate CAIX protein expression immunohistochemically. VHL mutations were identified in 58 patients (58%) and high CAIX expression (>85%) was observed in 78 (78%). Tumors with VHL mutation showed higher CAIX expression than those without (p = 0.02). Low CAIX expression and absence of VHL mutation were associated with a more advanced tumors e.g., higher T stages and presence of metastases. VHL mutation and high CAIX expression predicted longer progression-free survival (p = 0.037) and disease-specific survival (p = 0.001), respectively. In combination, they defined three prognostic groups (p = 0.002): (i) good prognosis, defined as VHL mutation and high CAIX (2-year survival: 86%), (ii) intermediate prognosis with either VHL mutation or high CAIX (69%), and (iii) poor prognosis with no VHL mutation and low CAIX (45%, median survival 18 months). CAIX expression, but not VHL mutational status, was an independent prognostic factor in multivariate analysis. Taken together, CAIX expression and VHL mutational status are able to stratify patients with clear cell RCC into distinct groups with regards to clinicopathological variables and prognosis, with low CAIX expression and absence of VHL mutation being associated with a poor clinicopathological phenotype and diminished survival

Collaboration: How does it work according to therapists and parents of young children? A systematic review

BACKGROUND: Collaboration between therapists and parents of children with developmental disabilities is a key element of family-centred care. In practice, collaboration appears to be challenging for both parents and therapists. This systematic review aims to make explicit how therapists can optimise their collaboration with parents of young children with developmental disabilities, according to the perspectives of parents and therapists. METHODS: A systematic review was conducted using the following databases: Medline (PubMed), CINAHL (OVID) and PsychINFO (OVID). Those papers were selected, which focused on collaboration using a two-way interaction between therapists and parents, exploring the perspectives of therapists and/or parents of children between 2 and 6 years. Papers needed to be published in English or Dutch between 1998 and July 2021. Included papers were synthesised using a qualitative analysis approach by two researchers independently. Results sections were analysed line-by-line, and codes were formulated and discussed by all authors. Codes were aggregated, resulting in a synthesis of specific collaboration strategies in combined strategy clusters. RESULTS: The search generated 3439 records. In total, 24 papers were selected. Data synthesis resulted in an overview of specific strategies organised into five clusters: (1) continuously invest time in your collaboration with parents, (2) be aware of your important role in the collaboration with parents, (3) tailor your approach, (4) get to know the family and (5) empower parents to become a collaborative partner. CONCLUSIONS: This systematic review resulted in an overview of concrete strategies for therapists to use in their collaboration with parents of children with developmental disabilities. The strategies formulated enable therapists to consciously decide how to optimise their collaboration with each individual parent. Making these strategies explicit facilitates change of practice from therapist-led and child-centred towards family-centred care

Proton pump inhibitor-induced nephrotoxicity

Proton pump inhibitors are widely used, and generally considered safe. In this clinical lesson two cases are presented with a strong suspicion of proton pump inhibitor induced decline of kidney function. This adverse event has only recently been identified in epidemiological studies. Our cases illustrate that chronic proton pump inhibitor nephrotoxicity can manifest subtle and may therefore be difficult to recognize. We discuss the current epidemiological evidence to support these observations, and the pathophysiology and clinical manifestations of proton pump inhibitor nephrotoxicity. In case a subject using a proton pump inhibitor shows kidney function decline, without a clear cause, withdrawal of this medication is advised. Although for an individual patient the risk may not be high, the large number of proton pump users makes that this adverse event is important on a population level.</p

Collaboration: How does it work according to therapists and parents of young children? A systematic review

BACKGROUND: Collaboration between therapists and parents of children with developmental disabilities is a key element of family-centred care. In practice, collaboration appears to be challenging for both parents and therapists. This systematic review aims to make explicit how therapists can optimise their collaboration with parents of young children with developmental disabilities, according to the perspectives of parents and therapists. METHODS: A systematic review was conducted using the following databases: Medline (PubMed), CINAHL (OVID) and PsychINFO (OVID). Those papers were selected, which focused on collaboration using a two-way interaction between therapists and parents, exploring the perspectives of therapists and/or parents of children between 2 and 6 years. Papers needed to be published in English or Dutch between 1998 and July 2021. Included papers were synthesised using a qualitative analysis approach by two researchers independently. Results sections were analysed line-by-line, and codes were formulated and discussed by all authors. Codes were aggregated, resulting in a synthesis of specific collaboration strategies in combined strategy clusters. RESULTS: The search generated 3439 records. In total, 24 papers were selected. Data synthesis resulted in an overview of specific strategies organised into five clusters: (1) continuously invest time in your collaboration with parents, (2) be aware of your important role in the collaboration with parents, (3) tailor your approach, (4) get to know the family and (5) empower parents to become a collaborative partner. CONCLUSIONS: This systematic review resulted in an overview of concrete strategies for therapists to use in their collaboration with parents of children with developmental disabilities. The strategies formulated enable therapists to consciously decide how to optimise their collaboration with each individual parent. Making these strategies explicit facilitates change of practice from therapist-led and child-centred towards family-centred care