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Algorithms for the maximum flow problem can be grouped into two categories: augmenting path algorithms [9], and preflow push algorithms [11]. Preflow push algorithms are characterized by a drawback known as ping pong effect. In this paper we present a technique that allows to avoid such an effect and can be considered as an approach combining the augmenting(More)
OBJECTIVE To compare the effect of sleeve gastrectomy vs medical therapy on type 2 diabetes mellitus and other obesity-related comorbidities (obstructive sleep apnea syndrome, hypertension, and dyslipidemia) in prospectively enrolled and matched obese patients with type 2 diabetes. DESIGN A prospective cohort study. Morbidly obese patients with type 2(More)
BACKGROUND Totally implantable venous access devices can be implanted both by percutaneous approaches and by surgical approaches with cephalic vein or external jugular vein cut-down techniques that are related to low intraoperative complication rates. The authors report a prospective evaluation of 83 consecutive external jugular vein cut-down approaches for(More)
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