MyMedR

Fulltext Laser versus dissection technique of tonsillectomy

Wan Ishlah L, Fahmi AM, Srinovianti N

Med J Malaysia, 2005 Mar;60(1):76-80.

Tonsillectomy is the single most common operation performed in Ear Nose and Throat Department. Various methods of tonsillectomy have been practiced over the century aimed at reducing or eliminating intraoperative and postoperative morbidity. Due to various blood supplies received, intraoperative bleeding is the most difficult problem and securing it is time-consuming. The time taken to control the bleeding would invariably determine the length of operation. Common postoperative complications are bleeding and pain. This study evaluated the operative time, intraoperative blood loss, postoperative pain and other postoperative complications of tonsillectomy performed by laser as compared to conventional dissection technique. This is a prospective randomized study whereby sixty patients were divided into two groups of equal number. In one group, the tonsillectomy performed by laser and in the other group the tonsillectomy performed by conventional dissection technique. Operative time and amount of blood loss is significantly reduced in the laser group. Total postoperative pain and post operative complications were not significantly different between the two groups. Tonsillectomy by using laser have shown less intraoperative bleeding and shortened the operative time. In the hospital where laser machine and expertise are available, it is justifiable to use this technique as effective method of performing tonsillectomy.

Matched MeSH terms: Laser Therapy*

Late closure of argon laser iridotomies following regrowth of iris pigment epithelium

Teoh LO, Ishikawa H, Liebmann JM, Ritch R

Arch. Ophthalmol., 2000 Jul;118(7):989-90.

PMID: 10900117

Matched MeSH terms: Laser Therapy*

Delayed diagnosis of cutaneous Rosai-Dorfman disease with distinctive histologic features in a Malayan man

Choon SE, Moktar Z, Ghani GA

Arch Dermatol, 2008 Jan;144(1):120-1.

PMID: 18209186 DOI: 10.1001/archdermatol.2007.19

Matched MeSH terms: Laser Therapy/methods

Effect of photodynamic therapy and laser alone as adjunct to scaling and root planing on gingival crevicular fluid inflammatory proteins in periodontal disease: A systematic review

Akram Z, Abduljabbar T, Sauro S, Daood U

Photodiagnosis Photodyn Ther, 2016 Dec;16:142-153.

PMID: 27619532 DOI: 10.1016/j.pdpdt.2016.09.004

BACKGROUND: To assess the efficacy of antimicrobial photodynamic therapy (aPDT) or laser therapy (LT) alone as an adjunct to scaling and root planing (SRP) on the gingival crevicular fluid (GCF) inflammatory proteins in periodontal disease.

METHODS: Databases (MEDLINE via PubMed; EMBASE; Cochrane Central Register of Controlled Trials and Cochrane Oral Health Group Trials Register databases) were searched from 1980 up to and including July 2016. The addressed PICO question was: "What effect does aPDT and/or LT as an adjunct to SRP have on the GCF inflammatory proteins in periodontal disease patients?"

RESULTS: Eight studies used aPDT while 10 studies used laser alone. Eight cytokines including tumor necrosis factor alpha (TNF-α), interleukin (IL)-1β, IL-6, IL-8, IL-10, interferon gamma (IFN-γ), matrix metalloproteinase (MMP)-8 and granulocyte colony-stimulating factor (GM-CSF) were eligible for qualitative analysis for aPDT and LT studies. Four aPDT studies showed significant reduction in IL-1β while one study showed significant reduction in TNF-α levels after aPDT application at follow-up. One study showed significant reduction of IFN-γ, IL-8 and GM-CSF levels after aPDT at follow-up. IL-1β significantly reduced in 4 LT studies, while one study showed significant decrease for IL-6 and TIMP-1 levels. MMP-8 and TNF-α showed significant reduction in three and one study respectively.

CONCLUSION: It remains debatable whether adjunctive aPDT or LT is effective in the reduction of GCF inflammatory proteins in periodontal disease due to non-standard laser parameters and short follow up period. These findings should be considered preliminary and further studies with long-term follow up and standardized laser parameters are recommended.

Matched MeSH terms: Laser Therapy/methods*

Valsalva haemorrhagic retinopathy after push-ups

Hassan M, Tajunisah I

Lancet, 2011 Feb 5;377(9764):504.

PMID: 21255827 DOI: 10.1016/S0140-6736(10)60677-0

Matched MeSH terms: Laser Therapy

Lip adhesion: unusual complication of Stevens-Johnson syndrome

Royan SJ

J Oral Maxillofac Surg, 2010 Apr;68(4):901-3.

PMID: 19926381 DOI: 10.1016/j.joms.2009.02.011

Matched MeSH terms: Laser Therapy

Recurrent respiratory papillomatosis

Long YT, Sani A

Asian J Surg, 2003 Apr;26(2):112-6.

PMID: 12732496

A 6-year-review of patients who presented with recurrent respiratory papillomatosis (RRP) to our hospital from January 1996 to December 2001 was carried out. Ten cases were identified, of which six were juvenile-onset RRP. Hoarseness was the most common symptom, noted in nine (90%) patients. Other clinical presentations included cough, stridor and aphonia. All patients had glottic papillomas; two had multiple sites of involvement. One patient underwent a tracheostomy that revealed papillomas over the trachea, bronchus and lung parenchyma. Half of the patients were Chinese. Of the six cases of juvenile-onset RRP, three patients were Malay, two Chinese and one Indian. Three Chinese and one German patient had adult-onset RRP. Among the juvenile-onset RRP cases, the mean age at presentation was 2 years, while for adult-onset RRP, it was 42 years. Juvenile-onset RRP was more common in females. There were more papillomas over more sites in patients with juvenile-onset RRP than with adult-onset disease. Subglottic involvement was noted in the juvenile-onset RRP cases. All patients were treated with CO2 laser therapy, but there was complete remission of the papillomas in only two cases.

Matched MeSH terms: Laser Therapy

Postural behaviour of intraocular pressure following trabeculoplasty

Singh M, Kaur B

Int Ophthalmol, 1992 May;16(3):163-6.

PMID: 1452420

Postural behaviour of intraocular pressure (IOP) was studied in 29 glaucomatous eyes before and after argon laser trabeculoplasty (ALT) and compared with that of 60 normal eyes. Although argon laser trabeculoplasty was successful in lowering the IOP below 21 mm Hg, it produced little effect on the postural behaviour of the IOP. No significant change was observed in the amplitude of postural rise of IOP in ALT treated eyes.

Matched MeSH terms: Laser Therapy

Implantation and diabetes: analysis of 525 cases

Lim AS, Ang BC, Heng LK, Hart PM, Ngui MS, Chew P, et al.

Ann Acad Med Singap, 1989 Mar;18(2):174-7.

PMID: 2751233

This is a retrospective study of 525 posterior chamber implants in diabetics performed by A S M Lim and B C Ang of Singapore. The patients were reviewed by visiting ophthalmologists--J E Kennedy (Sydney), M Ngui (East Malaysia) and P M Hart (Belfast). This study did not show any significant difference in the complication of post-operative visual acuity between diabetics and non-diabetics. 95% obtained 6/12 vision or better when pre-existing disease was excluded. It also showed that posterior chamber implants can be inserted in eyes with maculopathy or proliferative retinopathy if laser treatment was effectively done before or after surgery.

Matched MeSH terms: Laser Therapy

Fulltext Amlodipine-induced gingival overgrowth: a case report

Taib, H., Ali, T.B.T., Kamin, S.

Archives of Orofacial Sciences, 2007;2(1):61-64.

MyJurnal

Gingival overgrowth is frequently observed in patients taking certain drugs such as calcium channel blockers, anticonvulsants and immunosuppressant. This can have a significant effect on the quality of life as well as increasing the oral bacterial load by generating plaque retention sites. Amlodipine, a third generation calcium channel blockers has been shown to promote gingival overgrowth although in very limited cases reported. The management of gingival overgrowth seems to be directed at controlling gingival inflammation through a good oral hygiene regimen. However in severe cases, surgical excision is the most preferred method of treatment, followed by rigorous oral hygiene procedures. This case report describes the management of gingival overgrowth in a hypertensive patient taking amlodipine. Combination of surgical gingivectomy and CO2 laser treatment was used to remove the gingival overgrowth. CO2 laser surgery produced good hemostasis and less pain during the procedure and post operatively. This case report has also shown that periodontal treatment alone without a change in associated drug can yield satisfactory clinical response.

Matched MeSH terms: Laser Therapy

Retinopathy of prematurity in extremely low birth weight infants in Malaysia

Choo MM, Martin FJ, Theam LC, U-Teng C

J AAPOS, 2009 Oct;13(5):446-9.

PMID: 19840721 DOI: 10.1016/j.jaapos.2009.06.008

To identify differences in incidence, risk factors, and outcomes of retinopathy of prematurity (ROP) between 2 birth weight categories within a cohort of extremely low birth weight (ELBW) infants in Malaysia.

Matched MeSH terms: Laser Therapy

Chemoreduction for intraocular retinoblastoma in Malaysia

Menon BS, Juraida E, Alagaratnam J, Mohammad M, Ibrahim H, George TM, et al.

J Pediatr Hematol Oncol, 2007 Jan;29(1):2-4.

PMID: 17230058

In the last decade, chemotherapy in combination with focal therapy (chemoreduction) has been increasingly used in intraocular retinoblastoma to avoid enucleation and radiotherapy. The aim of this study was to assess the feasibility and outcome of chemoreduction in Malaysian children with retinoblastoma. This was a prospective study from August 2001 to January 2006. Twenty children (25 eyes) were given 4 cycles of chemoreduction, after which the response was assessed. Fourteen eyes showed a complete response, 10 eyes showed a partial response, and 1 eye had progressive disease. Twelve eyes developed progressive disease later, 9 after an initial complete response and 3 after a partial response. Overall, progressive disease occurred in 52%. There were 2 treatment failures, in Reese-Elsworth groups 3 and 4. Both eyes required enucleation. One eye in group 5 required second line chemotherapy to achieve a complete response. No eyes were irradiated. Five children (25%) defaulted follow-up, one of whom returned with disseminated disease. In conclusion, 4 cycles of chemoreduction achieved a durable complete response in only 12% of eyes. Chemoreduction is feasible in Malaysia but requires good patient compliance and close follow-up.

Matched MeSH terms: Laser Therapy

Recurrent gigantic pyogenic granuloma disturbing speech and mastication: a case report and literature review

Ong MA, Chai WL, Ngeow WC

Ann Acad Med Singap, 1998 Mar;27(2):258-61.

PMID: 9663321

A case of gigantic pyogenic granuloma with three recurrences in the lower anterior gingiva is presented. Surgical wide excision of the lesion is the treatment of choice. The tumour must be excised down to the periosteum and the irritants around it removed to avoid recurrence. A contributing factor to the gigantic lesion is hormonal changes during pregnancy. Long-term review for 18 months after the third surgery showed no evidence of recurrence at the surgical site.

Matched MeSH terms: Laser Therapy

Fulltext Synthesis and characterizations iron oxide carbon nanotubes nanocomposite by laser ablation for anti-microbial applications

Al-Salih M, Samsudin S, Arshad SS

J Genet Eng Biotechnol, 2021 May 18;19(1):76.

PMID: 34003402 DOI: 10.1186/s43141-021-00161-y

BACKGROUND: Environmental contamination by microbes is a major public health concern. A damp environment is one of the potential sources for microbe proliferation. Smart synthesis nanocatalytic coatings on surfaces, food, and material from different pathogen bacteria can inhibit using the Fe3O4/CNTs as anti-microbial growth can effectively curb this growing threat. In this present work, the anti-microbial efficacy of synthesis of a compound nanoparticle-containing iron oxide-multi-walled carbon nanotube was combined by laser ablation PLAL and explored the anti-bacterial action of colloidal solution of Fe3O4/CNTs NPs that was evaluated against bacteria which is classified as gram-negative (Escherichia coli (E. coli), Klebsiella pneumonia (K. pneumonia), and also that is identified as gram-positive (Streptococcus pyogenes (S .pyogenes) and Staphylococcus aureus (S. aureus) under visible light irradiation.

RESULTS: Doping of a minute fraction of iron(III) salt (0.5 mol%) in a volatile solvent (ethanol) was carried out via the sol-gel technique. Fe3O4 was further calcined at various temperatures (in the range of 500-700 °C) to evaluate the thermal stability of the Fe3O4 nanoporous oxidizer nanoparticles. The physicochemical properties of the samples were characterized through X-ray diffraction (XRD), atomic force microscopy (AFM), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), and UV-Visible spectroscopy techniques. XRD results revealed that the nanoparticles framework of Fe3O4 was maintained well up to 650 °C by the Fe dopant. UV-Vis results suggested that absorption property of combination Fe3O4/CNTs nanopowder by PLAL was enhanced and the band gap is reduced into 2.0 eV.

CONCLUSIONS: Density functional theory (DFT) studies emphasize the introduction of Fe+ and Fe2+ ions by replacing other ions in the CNT lattice, therefore creating oxygen vacancies. These further promoted anti-microbial efficiency. A significantly high bacterial inactivation that indicates results was evaluated and that the mean estimations of restraint were determined from triple assessment in every appraisal at 400 ml which represent the best anti-bacterial action against gram-positive and gram-negative microbes.

Matched MeSH terms: Laser Therapy

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