Vascular transection using endovascular stapling in hepatic resection

In anatomical resection of the liver, transection of the hepatic vein or Glisson\u27s pedicle is necessary. We examined the surgical records and outcome of 25 patients who underwent hepatectomy. An endovascular stapler with 36 and 60 mm staples was used for transection of the hepatic vein or Glisson\u27s pedicle, and hepatic parenchyma including vessels. Surgery included also left lateral sectorectomy in 6 patients, right lateral sectorectomy in one, right hepatectomy in 12, left hepatectomy in two and trisegraenteetomy in 4. Endovascular stapling was used for transection of hepatic veins (n=25) in all patients and Glisson\u27s pedicle (n=8). No failure of firing occurred during cutting. Injury of an aberrant bile duct occurred in one patient, but none suffered bleeding or bile leakage from the transected parts. Vascular transection using vascular stapler could be performed safely and rapidly during anatomical hepatic resection

Active Antennas for Cubesat Applications

An active antenna known as a grid oscillator is presented for use onboard the University of Hawaii’s CubeSat. It operates at high frequencies that will be able to facilitate future, more data-intensive missions. The device uses an efficient power-combining scheme packaged in a compact, low-profile structure that can be mounted on the side of a cube. The active antenna consists of an array of transistors directly embedded into a planar radiating structure. An infinitearray approximation is used to simulate the grid design in CAD programs. Various mounting schematics are presented for the grid oscillator that is currently being fabricated with a desired oscillation frequency of 5.85 GHz

Survival of geriatric patients after percutaneous endoscopic gastrostomy in Japan

AIM: To examine the long term survival of geriatric patients treated with percutaneous endoscopic gastrostomy (PEG) in Japan