De metapodia als voorspellers van formaat en gewicht bij runderen = The metapodia as predictors of size and weight in cattle

Verslag van een onderzoek naar het verband tussen de grootte van deze botten (homoloog met onze middenvoetbeentjes) als maat voor de grootte en het levend gewicht van runderen, op grond van waarnemingen bij stiertjes (Nederlands zwartbont en roodbont en Jersey). Deze botten zijn vaak de enige botten die bij archeologische vondsten intakt worden aangetroffen. Kennis van een dergelijk verband is daarom met name van belang om een voorstelling te kunnen maken van de praehistorische landbouwkundige situati

Het donkenlandschap in prehistorische tijd.

European Prehistor

Improvement of Cardiac Function After Roux-en-Y Gastric Bypass in Morbidly Obese Patients Without Cardiac History Measured by Cardiac MRI

Purpose: Metabolic syndrome in patients with morbid obesity causes a higher cardiovascular morbidity, eventually leading to left ventricular hypertrophy and decreased left ventricular ejection fraction (LVEF). Roux-en-Y gastric bypass (RYGB) is considered the gold standard modality for treatment of morbid obesity and might even lead to improved cardiac function. Our objective is to investigate whether cardiac function in patients with morbid obesity improves after RYGB. Materials and Methods: In this single center pilot study, 15 patients with an uneventful cardiac history who underwent RYGB were included from May 2015 to March 2016. Cardiac function was measured by cardiac magnetic resonance imaging (CMRI), performed preoperatively and 3, 6, and 12 months postoperative. LVEF and myocardial mass and cardiac output were measured. Results: A total of 13 patients without decreased LVEF preoperative completed follow-up (mean age 37, 48.0 ± 8.8). There was a significant decrease of cardiac output 12 months postoperative (8.3 ± 1.8 preoperative vs. 6.8 ± 1.8 after 12 months, P = 0.001). Average myocardial mass declined by 15.2% (P < 0.001). After correction for body surface area (BSA), this appeared to be non-significant (P = 0.36). There was a significant improvement of LVEF/BSA at 6 and 12 months postoperative (26.2 ± 4.1 preoperative vs. 28.4 ± 3.4 and 29.2 ± 3.6 respectively, both P = 0.002). Additionally, there was a significant improvement of stroke volume/BSA 12 months after surgery (45.8 ± 8.0 vs. 51.9 ± 10.7, P = 0.033). Conclusion: RYGB in patients with morbid obesity with uneventful history of cardiac disease leads to improvement of cardiac function

Clinical and Immunological Changes After Laparoscopic Roux-en-Y Gastric Bypass for Morbid Obesity

Clinical and immunological changes after a laparoscopic Roux-en-Y gastric bypass for morbid obesity are described in this thesis. Additionally, long term complications after bariatric surgery were assessed