Impact of drainless neck dissection on surgical outcome: a matched case-control study.

Purpose: The safety of drainless lateral neck dissection (ND) remains to be proven. Hereby, we describe outcomes of drainless ND using fibrin sealant (FS).

Methods: A retrospective, single academic institute, matched cased control.

H2 excretion after ingestion of complex carbohydrates.

Malabsorption of fermentable material in a variety of foods was assessed by measurement of breath H2 excretion. Breath H2 increased well above that observed in fasting subjects after ingestion of 100 g of carbohydrate in oats, whole wheat, potatoes, corn, and baked beans. Rice caused only a minimal increase in H2 excretion and hamburger was associated with no increase.

Contrast injection bradycardia during coronary angiography: effects in the denervated human heart.

To assess the contribution of cardiac innervation toward understanding the mechanisms of bradycardia during contrast coronary angiography, heart rate (HR) responses in eight patients after heart transplantation were compared with 10 normal patients (control), 10 patients with coronary artery disease (CAD) and normal ventricular function, and 10 patients with congestive cardiomyopathy and normal coronary arteries. The longest P-P interval was measured beat to beat before (HR 1) and after (HR 2) coronary angiography. The coronary vessel perfusing the sinus node did not influence HR 2 responses within each group.

Angiotensin delays platelet aggregation after injury of cerebral arterioles.

Endothelium of cerebral surface vessels (pial arterioles and venules) was injured with a light/dye technique in anesthetized mice. This induced platelet aggregation at the site of injury. The onset of aggregation was monitored through a microscope in mice given angiotensin II acetate, 4 micrograms i.