Carbon Dioxide Laser Vaporization of Brain Tumors

Neurosurgery ◽  
1983 ◽  
Vol 12 (1) ◽  
pp. 123-126 ◽  
Author(s):  
Chen Gongbai ◽  
Xu Qiwu
Keyword(s):  
Carbon Dioxide ◽  
Survival Rate ◽  
Co2 Laser ◽  
Carbon Dioxide Laser ◽  
Animal Studies ◽  
Laser Vaporization ◽  
Cerebral Tissue ◽  
Bipolar Coagulation ◽  
Factors Affecting

Abstract Since 1977, we have used a 170-W CO2 laser manufactured in Shanghai. In animal studies we found less temperature increase in neighboring cerebral tissue after laser vaporization (0.8°C) than after bipolar coagulation (1.4°C) or monopolar coagulation (8°C). Some factors affecting the reaction of cerebral tissue to CO2 laser irradiation are discussed. This laser was also used in 30 craniotomies: 20 for gliomas, 5 for meningiomas, 4 for metastases, and 1 for a vascular malformation. No obvious cerebral or systemic adverse effects were seen, but the length of follow-up is insufficient to demonstrate an increased survival rate.

Evaluation of a Technique Using the Carbon Dioxide Laser for the Treatment of Aural Hematomas

2002 ◽  
Vol 38 (4) ◽  
pp. 385-390 ◽  
Author(s):  
Teresa L. Dye ◽  
H. Douglas Teague ◽  
Donald A. Ostwald ◽  
Steven D. Ferreira
Keyword(s):  
Carbon Dioxide ◽  
Co2 Laser ◽  
Percutaneous Drainage ◽  
Laser Surgery ◽  
Carbon Dioxide Laser ◽  
The Other ◽  
Fluid Accumulation ◽  
A New Technique ◽  
Carbon Dioxide Co2

A new technique using the carbon dioxide (CO2) laser for the treatment of aural hematomas is described. The laser is used to make an incision into the hematoma to allow for evacuation of the blood, and then multiple, small incisions are made over the surface of the hematoma to stimulate adhesions between the tissue layers. The CO2 laser was used in this fashion to treat 10 aural hematomas in eight dogs. Follow-up ranged from 1 to 23 months. Owners evaluated the cosmetic results following CO2 laser surgery as excellent in three ears, good in five ears, and fair in two ears. Hematomas were resolved in all 10 cases, although two cases developed serosanguineous fluid accumulation that required percutaneous drainage in one case and a second laser procedure in the other case.

scholarly journals Fractional Carbon Dioxide Laser for Keratosis Pilaris: A Single-Blind, Randomized, Comparative Study

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Vasanop Vachiramon ◽  
Pattarin Anusaksathien ◽  
Silada Kanokrungsee ◽  
Kumutnart Chanprapaph
Keyword(s):  
Carbon Dioxide ◽  
Comparative Study ◽  
Laser Treatment ◽  
Carbon Dioxide Laser ◽  
Contralateral Side ◽  
Single Session ◽  
Fractional Carbon Dioxide Laser ◽  
Good Improvement ◽  
Type V

Objective. Keratosis pilaris (KP) is a common condition which can frequently be cosmetically disturbing. Topical treatments can be used with limited efficacy. The objective of this study is to evaluate the effectiveness and safety of fractional carbon dioxide (CO2) laser for the treatment of KP.Patients and Methods. A prospective, randomized, single-blinded, intraindividual comparative study was conducted on adult patients with KP. A single session of fractional CO2laser was performed to one side of arm whereas the contralateral side served as control. Patients were scheduled for follow-up at 4 and 12 weeks after treatment. Clinical improvement was graded subjectively by blinded dermatologists. Patients rated treatment satisfaction at the end of the study.Results. Twenty patients completed the study. All patients stated that the laser treatment improved KP lesions. At 12-week follow-up, 30% of lesions on the laser-treated side had moderate to good improvement according to physicians’ global assessment (p=0.02). Keratotic papules and hyperpigmentation appeared to respond better than the erythematous component. Four patients with Fitzpatrick skin type V developed transient pigmentary alteration.Conclusions. Fractional CO2laser treatment may be offered to patients with KP. Dark-skinned patients should be treated with special caution.

Onychoplasty with Carbon Dioxide Laser Matrixectomy for Treatment of Ingrown Toenails

2005 ◽  
Vol 95 (2) ◽  
pp. 175-179 ◽  
Author(s):  
Tara Farley-Sakevich ◽  
John F. Grady ◽  
Emil Zager ◽  
Timothy M. Axe
Keyword(s):  
Carbon Dioxide ◽  
Co2 Laser ◽  
Carbon Dioxide Laser ◽  
Surgical Approaches ◽  
A New Technique ◽  
Good Cosmesis ◽  
Ingrown Toenails ◽  
Methods Of Treatment ◽  
Co2 Laser Ablation ◽  
Return To Activity

Ingrown toenails are one of the most common pathologic conditions encountered in podiatric medical practice. Many methods of treatment for ingrown toenails have been used and studied, including chemical matrixectomies, surgical approaches, and CO2 laser ablation. This study is a retrospective review of a new technique that consists of resection of the involved nail matrix using a No. 15 blade and controlled cauterization using a CO2 laser. The technique was performed on 381 painful ingrown toenails, and all of the patients were followed up postoperatively for an average of 34 months. The results showed minimal pain, a low recurrence rate, rapid return to activity, and good cosmesis. (J Am Podiatr Med Assoc 95(2): 175–179, 2005)

Split face comparative study of microneedling with platelet rich plasma versus Fractional carbon dioxide laser with platelet rich plasma in treatment of atrophic post acne scars

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Mohamed Abd Elnaeem Sallam ◽  
Khaled El Zawahry ◽  
Abdul Rahman Muhammed Ali Mustafa
Keyword(s):  
Carbon Dioxide ◽  
Co2 Laser ◽  
Carbon Dioxide Laser ◽  
Platelet Rich Plasma ◽  
Fractional Co2 Laser ◽  
Acne Scars ◽  
Significant Difference ◽  
Before And After ◽  
The Face ◽  
Fractional Carbon Dioxide Laser

Abstract Background Acne scars, is a challenge for dermatologists, despite having multiple treatment modalities like microneedling, dermabrasion, Fractional CO2 Laser, dermal fillers, etc. However, monotherapy has been hardly satisfactory because of the polymorphism seen with the scars. Objective Comparison between microneedling with platelet rich plasma versus Fractional carbon dioxide laser with platelet rich plasma in treatment of atrophic post acne scars. Patients and methods This study was carried out in department of dermatology, venereology and andrology, in Kobry El-Kobba Military complex during the period (from September 2018 to July 2020 ) on 20 patients of both sexes aged from 20 to 60 years old presenting with Goodman and Baron Grade II, III, IV acne scars . Results The study revealed a statistically significant difference (p = 0.017) between Goodman and Baron scar grades on the right side of the face before and after treatment indicating that microneedling with platelet rich plasma was effective in improving acne scars. Also, there is a statistically significant difference (p = 0.010) between Goodman and Baron scar grades on the left side of the face before and after treatment, indicating that fractional CO2 laser with platelet rich plasma was effective in improving acne scars. Conclusion and recommendation Further controlled and randomized studies are needed to validate our findings in a larger cohort of patients and longer follow up. Also, number of sessions might be more than 3 sessions.

Carbon Dioxide Laser Microsurgery for Early Supraglottic Carcinoma

1998 ◽  
Vol 107 (8) ◽  
pp. 680-688 ◽  
Author(s):  
Petra Ambrosch ◽  
Martina Kron ◽  
Wolfgang Steiner
Keyword(s):  
Carbon Dioxide ◽  
Overall Survival ◽  
Survival Rate ◽  
Local Control ◽  
Carbon Dioxide Laser ◽  
Local Control Rate ◽  
Overall Survival Rate ◽  
Laser Microsurgery ◽  
Supraglottic Carcinoma ◽  
Free Rate

Forty-eight untreated patients with early supraglottic carcinoma (12 patients stage I and 36 patients stage II) had primary carbon dioxide laser microsurgery between 1979 and 1994 with the intent of complete tumor removal with preservation of functionally important structures of the larynx. Ninety-six percent of the patients were treated exclusively by surgery; 4% had laser microsurgery and postoperative radiotherapy. With a median follow-up of 55 months, the 5-year local control rate with the first treatment was 100% for pT1 cases and 89% for pT2 cases. The ultimate local control rate with voice preservation, including patients successfully salvaged after a local recurrence, was 97% for pT2 carcinomas. Five (10%) patients died of tumor (TNM)–related deaths. The 3-year recurrence-free rate and 3-year overall survival rate (Kaplan-Meier) were 87% and 85%; the 5-year recurrence-free rate and 5-year overall survival rate were 83% and 76%, respectively. The results achieved with transoral laser microsurgery in early supraglottic carcinoma are comparable to those of open supraglottic laryngectomy with respect to local control and survival. The functional results are superior, since clinically relevant aspiration did not occur.

Erythroplasia of Queyrat with Urethral Involvement: Treatment with Carbon Dioxide Laser Vaporization

2005 ◽  
Vol 31 (11) ◽  
pp. 1454-1457 ◽  
Author(s):  
Jesús del Pozo Losada ◽  
Asunción Ferré ◽  
Begoña San Román ◽  
Vanessa Vieira ◽  
Eduardo Fonseca
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Laser ◽  
Laser Vaporization ◽  
Erythroplasia Of Queyrat

scholarly journals Teratoma of larynx: case report

2021 ◽  
Vol 7 (10) ◽  
pp. 1700
Author(s):  
Rakesh Srivastava ◽  
Vini Tandon
Keyword(s):  
Carbon Dioxide ◽  
Case Report ◽  
Germ Cells ◽  
Carbon Dioxide Laser ◽  
Rare Case ◽  
Histopathological Examination ◽  
Flexible Laryngoscopy ◽  
First Case ◽  
Congenital Teratoma

<p class="abstract">Teratomas are embryonal neoplasm arises from totipotent germ cells. They are having tissues from all the three blastodermic layers. There are various locations of congenital teratoma. Naso-oropharyngeal site teratoma are either sessile or pedunculated. We describe a rare case of laryngeal teratoma in a five years old patient presented with change in voice and breathing difficulty. On flexible laryngoscopy, it appeared like supraglottic cyst but on CT scan it was confirmed as teratoma. Pre-operative tracheostomy and transoral carbon dioxide laser assisted excision done. Histopathological examination showed osteoid trabeculae, chondroid tissue with loose myxoid islands and adipose tissue. No recurrence of tumor on 18 months follow-up. This is the first case report of pediatric larynx teratoma reported in present century.</p>

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