Repeated stereotactic body radiotherapy for oligometastatic prostate cancer recurrence

Purpose: To assess the outcome of prostate cancer (PCa) patients diagnosed with oligometastatic disease at recurrence and treated with stereotactic body radiotherapy (SBRT). Methods: Non-castrate patients with up to 3 synchronous metastases (bone and/or lymph nodes) diagnosed on positron emission tomography - computed tomography, following biochemical recurrence after local curative treatment, were treated with (repeated) SBRT to a dose of 50 Gy in 10 fractions or 30 Gy in 3 fractions. Androgen deprivation therapy-free survival (ADT-FS) defined as the time interval between the first day of SBRT and the initiation of ADT was the primary endpoint. ADT was initiated if more than 3 metastases were detected during follow-up even when patients were still asymptomatic. Secondary endpoints were local control, progression free survival (PFS) and toxicity. Toxicity was scored using the Common Terminology Criteria for Adverse Events. Results: With a median follow-up from time of SBRT of 2 years, we treated 50 patients with 70 metastatic lesions with a local control rate of 100%. The primary involved metastatic sites were lymph nodes (54%), bone (44%), and viscera (2%). The median PFS was 19 mo (95% CI: 13-25 mo) with 75% of recurring patients having <= 3 metastases. A 2nd and 3rd course of SBRT was delivered in 19 and 6 patients respectively. This results in a median ADT-FS of 25 months (20-30 mo). On univariate analysis, only a short PSA doubling time was a significant predictor for both PFS (HR: 0.90, 95% CI: 0.82 - 0.99) and ADT-FS (HR: 0.83; 95% CI: 0.71 - 0.97). Ten patients (20%) developed toxicity following treatment, which was classified as grade I in 7 and grade II in 3 patients. Conclusion: Repeated SBRT for oligometastatic prostate cancer postpones palliative androgen deprivation therapy with 2 years without grade III toxicity

Ultrasonographic presentation of nodular cystic fat necrosis after a low-velocity trauma : a case report

Objective: Morel-Lavallée lesion is a well-known entity after a high-energy, shearing trauma. Another form of lesion in the subcutaneous tissue is fat necrosis, presenting as a palpable mass. The most common presentation of fat necrosis is oil cysts, which occur mainly in the breast. However, in the lower extremities fat necrosis appears as nodular cystic fat necrosis. We report here a case of a patient with multiple injuries after a low-velocity trauma, who developed fat necrosis.Results: Six months after the traumatic event the patient reported multiple subcutaneous lumps on the right knee. On ultrasonography, the probable diagnosis of post-traumatic fat necrosis with consequent development of nodular cystic fat necrosis was seen. The diagnosis was confirmed based on magnetic resonance imaging (MRI).Discussion: Fat necrosis should be included in the differential diagnosis in cases of tissue injuries after a trauma. Fat necrosis can present months or years after the initial injury. It is a benign entity and is the result of an organized haemorrhage, swelling and oedema that progresses with fibrosis. There is no absolute need for surgical treatment. LAY ABSTRACTNodular cystic fat necrosis presents as palpable lumps, most commonly on the lower extremities after a trauma. Patients may report these cystic structures many months after the trauma. This case report illustrates the ultrasonographic appearance of nodular cystic fat necrosis. This is a benign finding that does not require treatment or removal if no pain or aesthetic discomfort is present

Alcohol-related emergency department admissions in an elderly population

Objective: Alcohol abuse remains a major health concern. This study aimed to describe the characteristics of alcohol-related emergency department (ED) admissions in an elderly population. Methods: Between 1 September 2013 and 31 August 2014, we retrospectively analyzed patient charts of patients admitted with a blood alcohol concentration (BAC) of at least 0.5 g/L to the EDs of all five hospitals in two distinct areas. We focused on the population >= 65 years, divided in three subgroups (65-74, 75-84 and >= 85, respectively) and compared them to the 55-64 year group. Results: Of the 3918 included patients 645 (16.5%) were between 55 and 64, and 406 (10.4%) were >= 65 years (65-74: 267, 6.8%; 75-84: 128, 3.3%; >= 85: 11, 0.3%). The male-to-female ratio ranged between 2.1:1 and 2.7:1. BACs decreased with increasing age. In all age groups the majority of patients (71.0-77.8%) were transported by emergency medical services. The chief presenting complaint was trauma and its relative importance increased with age. Contextual factors consisted mostly of chronic abuse (43.1-57.8%). Most frequently patients could be discharged within 24 h, although hospital admission rates increased with age. Conclusion: Our study shows that alcohol-related ED admissions in the elderly are common, but less frequent than in younger age groups. More (preferentially prospective) studies are needed to give more insight in the living environment, prescription medication, socioeconomic cost, etc. Nonetheless, it is clear that a national action plan should be developed to tackle the alcohol abuse problem in all age groups

Alcohol-related emergency department admissions among adolescents in the Ghent and Sint-Niklaas areas

Alcohol abuse is a major health concern. The aim of this retrospective study was to analyse the alcohol-related emergency department (ED) admissions among adolescents in all hospitals of distinct areas during a 1-year period. In each hospital, all ED patients with a blood alcohol concentration (BAC) of at least 0.5 g/l were surveyed in a standardised way. Of the 3918 included patients, only 146 (3.7%) were <18 years. The male-to-female ratio was 1.5:1. There was a strong preponderance of weekend and night time admissions. Most of the patients were transported by ambulance (77% of 138 patients with information on this item). The main reason for ED admittance was depressed level of consciousness (64%), trauma (12%), vomiting and/or abdominal pain (12%), agitation or aggression (4%), syncope (4%) and psychological problems (4%). The context of the alcohol intoxication was related to some kind of festivity in 85%, mental problems in 14% and chronic abuse in 1%. Median BAC values (and range) were 2.08 g/l (0.73-3.70 g/l) for boys and 1.51 g/l (0.73-2.90 g/l) for girls. Most patients (87%) could be discharged home within 24 hours. Our study confirms that problematic alcohol use leading to ED admissions starts in adolescence. Although the numbers of cases below 18 years are low when compared to adults, the phenomenon is alarming as it is associated with substantial health problems. Therefore, Belgium urgently needs a global national alcohol plan, with youngsters being one of the target groups

The role of alanine glyoxylate transaminase-2 (agxt2) in β-alanine and carnosine metabolism of healthy mice and humans

Purpose: Chronic β-alanine supplementation leads to increased levels of muscle histidine-containing dipeptides. However, the majority of ingested β-alanine is, most likely, degraded by two transaminases: GABA-T and AGXT2. In contrast to GABA-T, the in vivo role of AGXT2 with respect to β-alanine metabolism is unknown. The purpose of the present work is to investigate if AGXT2 is functionally involved in β-alanine homeostasis. Methods: Muscle histidine-containing dipeptides levels were determined in AGXT2 overexpressing or knock-out mice and in human subjects with different rs37369 genotypes which is known to affect AGXT2 activity. Further, plasma β-alanine kinetic was measured and urine was obtained from subjects with different rs37369 genotypes following ingestion of 1400 mg β-alanine. Result: Overexpression of AGXT2 decreased circulating and muscle histidine-containing dipeptides (> 70% decrease; p  0.05). In humans, the results support the evidence that decreased AGXT2 activity is not associated with altered histidine-containing dipeptides levels (p > 0.05). Additionally, following an acute dose of β-alanine, no differences in pharmacokinetic response were measured between subjects with different rs37369 genotypes (p > 0.05). Interestingly, urinary β-alanine excretion was 103% higher in subjects associated with lower AGXT2 activity, compared to subjects associated with normal AGXT2 activity (p < 0.05). Conclusion: The data suggest that in vivo, β-alanine is a substrate of AGXT2; however, its importance in the metabolism of β-alanine and histidine-containing dipeptides seems small