2014年1月10日星期五

Poland - SALMED 2014


Welcome to visit Gigaa Medical Laser at SALMED 2014.
SALMED 2014|10-12.02.2014
25th edition of SALMED 2014, will be held in Poznan, Poland.
We are looking forward to meet you during SALMED 2014, please visit our booth at Hall 8-NR.67

2014年1月8日星期三

Gigaa Hemorrhoids Diode Laser


A new method for hemorrhoid surgery: intrahemorrhoidal diode laser, does it work?

OBJECTIVE:

This study aimed to describe the clinical results of intrahemorrhoidal application of a diode laser.

BACKGROUND DATA:

Hemorrhoids are a common source of pain, and no surgical technique achieves a painless outcome. Endovascular laser therapy for varicose veins as described in an experimental study is a method that could be used in the treatment of hemorrhoids, but there are few clinical trials described in the literature.

MATERIALS AND METHODS:

Fifteen patients with second and third degree hemorrhoids underwent intrahemorrhoidal laser therapy. After the piles were identified, a fiber was introduced into each and it was irradiated with laser energy (810 nm, 5 W, frequency of 5 Hz, energy density of 19 J/cm(2), total energy of 4-10 J).

RESULTS:

The piles were immediately partially reduced, and clinical examination 7, 14, 21, and 28 d after surgery showed complete healing in nine patients (60.4%) and partial resolution in five patients (33%). In one patient (6.6%) the treatment failed. Mean pain intensity throughout the study period, measured by a visual analog scale (0-10), was 0.84 +/- 1.13 (mean +/- SD). Major complications were burn lesions (n = 4) and residual plicoma (skin tag) (n = 5). Ten control patients underwent an open "cold scalpel" hemorrhoidectomy. Their pain intensity was 1.78 +/- 0.68 (mean +/- SD). There was a significant statistical difference (p = 0.018) between groups.

CONCLUSION:

The diode laser energy delivered into small to median hemorrhoidal piles caused little pain and led to a partial to complete resolution within a short time compared to open hemorrhoidectomy. Some adjustments must be made to prevent burning lesions and residual plicoma. Although it is not a good method for big piles, this technique opens new possibilities for surgical treatment of hemorrhoidal disease.

donna@gigaalaser.com


2014年1月6日星期一

Histologic Evaluation of Laser Lipolysis Pulsed 1064-nmNd YAG Laser vs CW980nm Diode Laser

Keywords:Laser Lipolysis Pulsed 1064-nmNd YAG Laser,CW980nm Diode Laser

Background: The use of the laser as an auxiliary tool has refined the. traditional technique for lipoplasty. During laser lipolysis, the interaction between the lasers and the fat produced direct cellular destruction before the suction, reduced bleeding, and promoted skin tightening

Objective: This study sought to perform  a comparative bistologic evaluation of laser lipolysis with the pulsed 1064-nm NA:YAC laser versus a continuour 980-nm diode laser.

Methods: A pulsed 1064-nm Nd:YAG and a CW 980-nm diode laser were evaluated at different energy settings for lipolysis on the thights of a fresh acdaver.The laser were coupled to 600-um optical fiber inserted in‘1-mm diameter cnnula. Biopsy specimens were taken on irradiated and non-irradiated areas.Hematoxylin-erythrosin-safran staining and immunostaining (anti-PS100 polyclonal antibody) were performed to identify fat tissue damage.

Results: In the absence of laser exposures (control specimens), cavitirs created by cannulation were seen; adipocytes were round in appearance and not deflated.At low energy settings, tumescent adipocytes were observed. At higher energy settings,cytoplasmic retraction,disruption of mermbranes, and heat-coagulated collagen fibers were noted; coagulated blood cells were also present. For the highest energy settings, carbonization of fat tissue involving fibers and membranes was clearly seen. for equivalent energy settings,  1064-nm and 980-nm  wavelengths gave smiler histologic  results.


Condusiora: Laser lipolysis is relatively new technique that is still under development. Our histologic findings suggest several positive benefits of the Iaser, including skin retraction and n reduction in intraoperative bleeding. The interaction of the laser with the tissue is similar at 980 nm and 1064 nm with the some energy settings. Because higher volumes of fat are removed with higher total energy,a high-power 980-nm diode laser could offer an interesting alternative to the 1064-nm Nd:YAG laser. 

2014年1月5日星期日

Velas Laser System For Percutaneous Laser Disc Decompression (PLDD)

The principle of the laser in the treatment of PLDD

Percutaneous laser disc decompression is the use of laser thermal effect and prominent vertebral Vaporization of disc nucleus and form part of the space, reducing the pressure inside the disc, from the Reduce or eliminates the oppression of the nerve, which achieve the purpose of treatment. The therapeutic method of the laser treatment for PLDD .

The therapeutic method of the laser treatment for PLDD

  • Local anesthesia, X-ray machine needle puncture guided positioning
  • From the core needle, into optical fiber, optical fiber needle tip beyond the top 3mm of the appropriate
  • Fixed optical fiber on the Y-valve, lasing, vaporization nucleoplasty
  • Fiber and needle withdrawal, elastic waist-bandage
  • It can be use for several treatments for PLDD

The advantages of laser treatment of PLDD

  • Local anesthesia, minimally invasive surgery, non-bleeding, Mini-invasive
  • Operation time is short, safe, effective
  • Rapid recovery, fewer complications
  • It can be use for several treatments for PLDD at same time

The composition of VELAS laser system for PLDD

  • VELAS medical diode laser therapeutic apparatus
  • Laser protective goggle
  • Optical fiber 400um/600um for medical use
  • 18G needle
  • Y-valve
  • Elastic waist
donna@gigaalaser.com

2014年1月2日星期四

The hemorrhoid laser procedure technique vs rubber band ligation

A randomized trial comparing 2 mini-invasive treatments for second- and third-degree hemorrhoids.


BACKGROUND:

Hemorrhoid laser procedure is a new laser procedure for outpatient treatment of hemorrhoids in which hemorrhoidal arterial flow feeding the hemorrhoidal plexus is stopped by means of Doppler-guided laser coagulation.

OBJECTIVE:

Our aim was to compare the hemorrhoid laser procedure with rubber band ligation for outpatient treatment of symptomatic hemorrhoids with moderate mucosal prolapse.

DESIGN:

This was a randomized controlled trial with balanced allocation to hemorrhoid laser procedure or rubber band ligation, with stratification by study center.

SETTING:

This study was conducted at 2 teaching hospitals in Italy.

PATIENTS:

Patients with symptomatic grade II or grade III hemorrhoids with minimal mucosal prolapse were eligible for the study.

INTERVENTIONS:

In the hemorrhoid laser procedure operation, a Doppler probe was inserted into the anal canal through a dedicated disposable proctoscope to identify the terminal branches of superior hemorrhoidal arteries approximately 3 cm above the dentate line. Five pulsed laser shots were delivered to each identified artery through the proctoscope to close the terminal branches. The procedure was repeated for each artery through clockwise rotation of the proctoscope. Absence of a Doppler signal after treatment confirmed arterial coagulation. Rubber band ligation was performed by positioning rubber bands at the base of left lateral, right anterior, and right posterior piles. No anesthesia was given for either technique.

MAIN OUTCOME MEASURES:

Operative time, complications, postoperative pain (visual analog scale), postoperative downgrading of hemorrhoids, resolution of symptoms, and quality of life were evaluated.

RESULTS:

A total of 60 patients (35 women, 25 men; mean age, 46 years) entered the trial and were analyzed. No significant differences between rubber band ligation and hemorrhoid laser procedure were observed in operative time or intraoperative morbidity. The median postoperative pain score was 2.9 (range, 1-5) with rubber band ligation vs 1.1 (range, 0-2) for hemorrhoid laser procedure (P < .001). At 6 months, resolution of symptoms was observed in 16 patients (53%) with ligation vs 27 (90%) with hemorrhoid laser procedure (P < .001), and reduction of hemorrhoids by at least 1 grade was observed in 12 patients (40%) with ligation vs 24 (80%) with hemorrhoid laser procedure (P < .001). Significantly higher quality of life was seen in the hemorrhoid laser procedure group (P = .002).

LIMITATIONS:

Follow-up was not longer than 1 year (median, 6 mo).

CONCLUSIONS:

Despite higher cost, the hemorrhoid laser procedure technique was more effective than rubber band ligation in reducing postoperative pain, resolving symptoms, and improving quality of life in patients with grade II or III hemorrhoids with incomplete mucosal prolapse.

donna@gigaalaser.com

What Are Hemorrhoids?

Alternative Names
Rectal Lump
Piles
Lump in the Rectum

Definition:
Dilated or enlarged veins in the lower portion of the rectum or anus.


Two Types:
Internal- Under the skin
External- Around the anus

Grades:
I- Hemorrhoids only bleed
II- Prolapse and reduce spontaneously
III- Require replacement
IV- Permanently Prolapsed
...

donna@gigaalaser.com