Hasil Pencarian  ::  Simpan CSV :: Kembali

"Nyeri dan kualitas hidup terkait kesehatan setelah intervensi bedah jaringan lunak mulut: keuntungan penggunaan laser Nd:YAG. Teknologi laser neodymium-doped yttrium aluminum garnet (Nd:YAG) telah banyak digunakan untuk bedah jaringan lunak mulut. Penelitian terdahulu memperlihatkan bahwa bedah laser menurunkan angka morbiditas dan komplikasi. Tujuan: Penelitian ini bertujuan membandingkan penggunaan laser Nd:YAG dan pisau bedah untuk tatalaksana bedah lesi jaringan lunak mulut. Metode: Studi ini memeriksa 118 lesi yang dilakukan bedah. Grup 1 (G1) terdiri dari 77 kasus yang ditatalaksana dengan laser Nd:YAG; Grup 2 (G2) terdiri dari 41 kasus yang ditatalaksana bedah dengan pisau bedah. Nyeri akut paska operasi dievaluasi dengan visual analogue scale (VAS), numeric rating scale (NRS) dan verbal rating scale-6 (VRS-6) pada hari operasi dan 1, 3 dan 7 hari setelah operasi. HRQoL dievaluasi pada hari ke-10 menggunakan kuesioner dengan skor 0-45. Data dianalisis dengan STATA 12 (StataCorp LP, College Station, Texas, USA). Hasil: Tidak ada perbedaan bermakna antara skor VAS dan NRS pada kedua grup. Namun, terdapar perbedaan bermakna pada skor nyeri dengan VRS-6 di hari ke-1 (47,14% vs 13,16%) dan hari ke-3 (62,86% vs 21,05%) kedua grup. Penelitian ini memperlihatkan bahwa HRQoL pada G1 lebih baik daripada G2. Simpulan: HRQoL yang lebih baik dan nyeri paska operasi yang lebih rendah terlihat pada pasien yang dilakukan bedah laser Nd:YAG. Hasil ini kemungkinan berkaitan dengan efek bio-modulasi dari laser.

---

The new technology such as the neodymium-doped yttrium aluminum garnet (Nd:YAG) laser has been used for oral soft tissue surgery. Previous study shown that laser surgery resulted in lower morbidity and complication rates. Objective: This study aims to evaluate the differences in the post-operative course associated to the use of Nd:YAG laser and to cold blade after oral soft tissue surgery. Methods: One-hundred and eighteen comparable surgical interventions were evaluated. Group 1 (G1) included 77 interventions performed with Nd:YAG laser; group 2 (G2) 41 with cold blade. Acute post-operative pain was evaluated with visual analogue scale (VAS), numeric ratingscale (NRS) and verbal rating scale-6 (VRS-6) on the same day of surgery, and at 1, 3 and 7 days after surgery.The HRQoL was evaluated on day 7 using a 0-45 score range questionnaire. Data were analyzed using the software STATA 12 (StataCorp LP, College Station, Texas, USA). Results: No statistically significant differences could be highlighted in VAS and NRS scores. The VRS-6 scores resulted statistically significant at days 1 and 3. At day 1, 47.14% of patients in G1 and 13.16% in G2 had no pain; at day 3, 62.86% in G1 and 21.05% in G2 had no pain. The HRQoL in G1 was statistically higher than G2. Conclusion: The better HRQoL and the lower post-operative pain observed in laser-treated patients may be associated to the possible bio-modulating effect of the laser."

"ABSTRACTFor the purpose of optically cooling, trapping, detecting and accelerating Cesium atoms in a "fountain clock", semiconductor lasers with external resonator have been designed, built and tested in their spectral characteristic and their long-term frequency drift. Multiple Quantum Well lasers with AR coating on one end face and a high reflection coating on the other end face have been used which produce 50 mW at 852 nm ( single end output ). With an external grating resonator the line width was reduced to 150 KHz. Doppler emitted and saturated absorption spectra of the two Cs fine structure transitions were recorded. The saturated absorption lines (Lamb dips) were utilized as optical discriminators in order to stabilize the laser frequencies off line center as is required for optical cooling. Beat frequency measurements between two external resonator laser diodes permitted to measure the 150 KHz line width, and to observe the quality of the long-term frequency stabilization. "