The immediate and long-term results of excising squamous cell carcinoma of the oral cavity or lip by CO2 laser are analysed in 51 consecutive subjects treated as out-patients. From January 1982 to December 1989, 39 cases of T1 and 12 cases of small (less than 2.5 cm) non-infiltrating recurrences of squamous cell carcinoma were treated at the Istituto Nazionale Tumori in Milan. Complete removal was obtained in 44 instances, while in 7 cases cancerous margins were observed on the specimen; 5 of these underwent another wider treatment and 2 refused further therapy. Two of 39 T1 patients developed local relapses and 6/12 recurrent cancers relapsed again. Long term results are complicated by second primary cancers in 19 instances. Out-patient laser therapy is well accepted by patients and its use involves lowered direct and indirect health organisation and social costs.
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http://dx.doi.org/10.1177/030089169107700311 | DOI Listing |
To facilitate the development of compact multi-wavelengths lasers, we reported the experimental demonstration of dual seed sources master oscillator power amplifier (MOPA) QCLs. The devices were based on a sandwich configuration consisting of dual seed sources and a central power amplifier. Emission spectrum of devices was modulated by switching seed sources.
View Article and Find Full Text PDFCureus
December 2024
Emergency Department, Bayhealth Hospital, Dover, USA.
Subglottic stenosis (SGS) presents a rare, yet challenging condition characterized by airway obstruction below the glottis, with diverse etiologies ranging from congenital to acquired factors like intubation or autoimmune diseases. Diagnosis and management of SGS during pregnancy are particularly complex due to limited literature and diagnostic consensus. This article presents a case of a 26-year-old pregnant woman presenting with escalating dyspnea and stridor attributed to SGS, most likely secondary to idiopathic etiology.
View Article and Find Full Text PDFNeurophotonics
January 2025
University of Kentucky, Department of Biomedical Engineering, Lexington, Kentucky, United States.
Significance: Cerebral blood flow (CBF) imaging is crucial for diagnosing cerebrovascular diseases. However, existing large neuroimaging techniques with high cost, low sampling rate, and poor mobility make them unsuitable for continuous and longitudinal CBF monitoring at the bedside.
Aim: We aimed to develop a low-cost, portable, programmable scanning diffuse speckle contrast imaging (PS-DSCI) technology for fast, high-density, and depth-sensitive imaging of CBF in rodents.
Lasers Med Sci
January 2025
College of Dentistry, Ajman University, Ajman, United Arab Emirates.
Recurrent aphthous stomatitis (RAS) is one of mankind's most common diseases with a nonspecific etiology. Lasers are gaining traction in dentistry due to their remarkable effects on pain reduction. Their convenience and lack of side effects have made them an attractive alternative to conventional interventions.
View Article and Find Full Text PDFAdv Wound Care (New Rochelle)
January 2025
Department of Dermatology, The Second Affiliated Hospital of Wannan Medic-al College, Wuhu, Anhui, China.
The aim of this study was to compare the long-term effects of fractional carbon dioxide (CO) laser treatment with traditional therapy on surgical scars by analyzing and comparing observational indicators. A randomized controlled trial was conducted on 116 patients who received scar treatment in our hospital, of which 58 patients received fractional CO laser treatment, and 58 patients received injection treatment. The outcome measures comprised the Vancouver Scar Scale (VSS) and the Patient and Observer Scar Assessment Scale (POSAS).
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