Pulmonary artery compression by hematoma, a rare but life-threatening complication of Stanford type A aortic dissection.

Hemorrhagic extension along the pulmonary arteries should be recognized as a complication of Stanford type A aortic dissection. Radiologists and other physicians with an interest in cardiothoracic imaging should be aware of this rare but life-threatening pathology. The anatomical concept of the pathology is outlined in this text, through high-quality electrocardiogram-gated computerized tomography images.

Differential impact of lactose/lactase phenotype on colonic microflora.

Background: The ability to digest lactose divides the world's population into two phenotypes that may be risk variability markers for several diseases. Prebiotic effects likely favour lactose maldigesters who experience lactose spilling into their colon.

Objective: To evaluate the effects of fixed-dose lactose solutions on fecal bifidobacteria and lactobacilli in digesters and maldigesters, and to determine whether the concept of a difference in ability to digest lactose is supported.

Lack of effect of lactose digestion status on baseline fecal micoflora.

Background: The genetics of intestinal lactase divide the world's population into two phenotypes: the ability (a dominant trait) or inability (a recessive trait) to digest lactose. A prebiotic effect of lactose may impact the colonic flora of these phenotypes differently.

Objective: To detect and evaluate the effects of lactose on subjects divided according to their ability to digest lactose.

Isometric force parameters and trunk muscle recruitment strategies in a population with low back pain.

Objective: This study correlates changes in trunk isometric force parameters and trunk muscle recruitment strategies in subjects with low back pain (LBP) and healthy participants.

Methods: A control group study with repeated measures was performed. Study participants included 15 control subjects and 14 patients with LBP.