Meanings of underwent placement in English

Methods: Yorkshire pigs underwent placement of a left circumflex artery ameroid occluder.

Due to persistent hypoxemia, the neonate underwent placement of a 4-mm modified Blalock-Taussig shunt.

For animal studies of ODNs toxicity and uptake, eight rats underwent placement of cisternal catheters, under general anesthesia.

Study design: Sheep underwent placement of myometrial electromyogram electrodes while they were under general anesthesia at 117 days' gestation.

Materials and methods: Eight swine underwent placement of a percutaneously implantable arterial port-catheter system using a translumbar aortic approach for catheter placement.

Methods and results: Sixteen male Yorkshire swine underwent placement of an ameroid constrictor into the left circumflex artery to induce chronic myocardial ischemia.

A 44-year-old man underwent placement of a hemodialysis catheter via the left internal jugular vein, and the first leukapheresis procedure was performed without complications.

Patient sample: A total of 46 consecutive patients who underwent placement of anterior BAK cages from 1997 to 1999 were the study group.

Between January 2007 and July 2010, 93 patients with malignant dysphagia because of esophageal carcinoma underwent placement of self-expandable metallic stents in our hospital.