Nonsurgical delay of dorsal rat cutaneous flap using a long-pulsed 1064-nm Nd:YAG laser with a contact cooling device.

Background: This study evaluated the efficiency of a long-pulsed neodymium:yttrium-aluminum-garnet laser, operating at 1064 nm and equipped with a contact cooling device, in the delay of a caudally based dorsal rat skin flap (10 x 3 cm). This laser has deeper tissue penetration and has not been used for this purpose before.

Methods: Twelve male Sprague-Dawley rats were used in each of six groups.

Evaluation of flashlamp-pumped pulsed-dye laser (585 nm) in nonsurgical delay of dorsal rat cutaneous flaps.

Background: This study evaluated the efficiency of a flashlamp-pumped pulsed-dye laser operating at 585 nm in the delay of a caudally based, 10 x 3-cm dorsal rat skin flap. Two different laser treatment patterns (only longitudinal borders and the entire surface of the proposed flap) for two different fluences (6 J/cm and 8 J/cm) were compared with an acute untreated control flap as well as two surgical delay methods (incision of longitudinal borders and incision of longitudinal borders plus flap undermining).

Methods: Twelve male Sprague-Dawley rats were used in each of seven groups.

A useful algorithm for determining fluence and pulse width for vascular targets using 1,064 nm Nd:YAG laser in an animal model.

Background And Objectives: Many current parameters to ablate vascular beds using 1,064 nm lasers are based on high-energy settings and often fail to consider vessel diameter and/or pulse width. This study attempts to define the minimal effective dosage (MED) of energy and pulse width for specific vessel diameters in an animal model.

Study Design/materials And Methods: 1,064 nm Nd: YAG was used in 15 Sprague-Dawley rats.