Diamond shaped optical fiber delivery system.

Background: Optical fibers are generally used with a flat cut end. The adaptation of a coaxial exit of a refrigerated gas near the distal tip of the optical fiber cools the tissue where the laser beam is applied and reduces the injury of thermal effects on biological tissue.

Materials And Methods: We have changed the flat end geometry of the fiber's end to a pyramidal end shape (named: Diamond tip).

Tomato lycopene extract supplementation decreases insulin-like growth factor-I levels in colon cancer patients.

Epidemiological studies have shown that high serum levels of insulin-like growth factor-I are associated with an increased risk of colon and other types of cancer. The aim of this study was to determine whether short intervention with dietary tomato lycopene extract will affect serum levels of the insulin-like growth factor system components in colon cancer patients. The study had a double-blind, randomized, placebo-controlled design.

Removal of giant vernal papillae by CO2 laser.

Background: We report our experience in removing giant papillae in cases with severe vernal keratoconjunctivitis using CO2 laser.

Methods: Five cases with conjunctival giant papillae due to severe vernal keratoconjunctivitis were treated with CO2 laser. All cases were resistant to conventional treatment.

Diamond-shaped optical fiber delivery system.

Objective: Physicians who use laser systems are looking for new fiberoptic delivery systems with better performance. We searched for a delivery system with high power and with a tip of high durability that may be reused many times.

Summary Background Data: The delivery systems currently found on the market can burn and break easily.