Laser Surgery Common Procedures

Procedure: Canine Castration

ANESTHESIA: Local anesthesia at the surgical site
EQUIPMENT: Diowave™ Laser set at 7.5 W Continuous Mode
TECHNIQUE: Patient was immobilized, shaved and prepped. The laser was set at 1 watt, and several slow passes over the intended incision site were made, producing collagen contraction with vascular constriction and effective hemostasis. The laser was then set at 7 watts and used as a scalpel with very light surface contact to create a full-thickness skin incision. Several passes were made to penetrate the layers of tissue and membranes. The first testicle was removed and then the laser was used to surgically access the second testicle. Testicle removal was completed per standard protocol.
TIME: 1 hr. 12 minutes

Procedure: Skin Tumor Removal

ANESTHESIA: Local anesthesia at the surgical site
EQUIPMENT: Diowave™ Laser set at 7W Pulse Mode
TECHNIQUE: The laser was used to ablate, vaporize, and excise the tumors and excise the tumor. The laser tip was held 2 mm distance from the tumor, painting the entire area very slowly until the tumor vaporizes leaving a small divot around the margin of the tumor. An additional tumor was excised using the laser tip with no bleeding. The residual remnant of the tumor tissue around the margin was ablated. The laser was used post-op on the larger excision at .5” distance to contract the tissue to about ½ of the size before applying Solviden© Cream and a patch. No suture was required.
TIME: 55 minutes

Procedure: Injection Site Abscess Repair

ANESTHESIA: General anesthesia with morphine, ketamine-valium and isoflurane
EQUIPMENT: Diowave™ Diode Laser
TECHNIQUE: Routine surgical repairs, Penrose drain placement, laser decontamination and biostimulation at 4.0 Watts. Three passes of the laser at approximately 5 cm distance over the caudal half of incision only, once daily for four days (Figure 1) Rx: Clavamox, meloxicam, buprenorphine.
CLOSURE: 3-0 nylon, horizontal mattress and simple interrupted patterns.
COMMENTS: Initial surgical debridement and treatment with a systemic cephalosporin was deemed inadequate to resolve the infection when the site dehisced. E. coli was cultured, indicating fecal contamination of the site following the initial repair. Additionally, abscess cavitation had increased
by the time of the second surgery. The second surgical repair included both drain placement, and laser decontamination/biostimulation, followed by an antibiotic change. It is apparent in only three days that the treated half of the incision has better epithelialization and less scabbing following laser therapy with the
Diowave™ Laser than the untreated half (Figure 2).The Penrose drain was pulled on day four. At thistime, laser therapy with the Diowave™ Laser was applied to the entire affected area, including
subcutaneously via the drain sites. At 15 days post-op, the entire wound was nicely healed (Figure 3) with an atypically large amount of new hair growth. The difference in healing suggests that laser therapy with the Diowave™ Laser is beneficial for all surgical procedures.

Procedure: Foreign Body Tract (Foxtail) Removal

EQUIPMENT: Diowave™ Laser, laser set at 2.0 Watts and avg. 7 cm for nerve desensitization. Light manual restraint was utilized.
TECHNIQUE: Laser set at 2.0 watts at approximately 7 cm for pre-operative nerve desensitization. Tract opened and probed with sterile mosquito forceps, negative findings, flushed with dilute chlorhexidine solution. Laser set 4.0 watts at an average 5 cm distance, three passes once daily for three days was used for decontamination and biostimulation of the wound.
TIME: 3 hrs. 35 min. cumulative
COMMENTS: Foreign body (i.e. foxtail/grass awn) tracts are commonly found on dogs, especially in the feet. This particular dog’s abscess was surgically probed under heavy sedation and local anesthesia three days prior and she was put on systemic non-steroidal anti-inflammatory and antibiotic medications at that time. A presumptive exit-wound was identified on the plantar surface of the inter-digital webbing. After treatment the tract was dry and swelling was significantly reduced within 24 hrs. By day four, the tract was approximately 50% smaller and remained dry. No bandaging or other treatment changes were made. The tract was resolved with residual scar tissue ten days after the onset of laser treatment.

Procedure: Entropian Mass

Patient was presented with entropion condition on the medical canthus of the left eye. The condition had developed a corneal ulcer with significant discomfort (Figure 1)
ANESTHESIA: Standard General Anesthesia – A Sharpie® marker was used to artificially pigment the skin to aid in laser absorption
EQUIPMENT: Diowave Diode Laserset at 4Watts, Continuous Mode
TECHNIQUE: The Diowave™ Laser was used to create a series of three surface incisions in the shape of ‘X’ of aobut 1 cm in length, criss-crossing across the medial aspect of the lower eye lid. This caused the eye lid to contract and pull the canthus back into the original position. When the canthus and eye lashes retracted, the corneal ulcer was abel to heal (Figure 2).
COMMENTS: The patient was examined 5 days post-op; The canthus had retracted into proper position and the corneal ulcer had healed. No further treatment was needed.

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