scholarly journals 1512 A Service Evaluation of Transoral Laser Resection Procedures for Oral Cancer and Dysplasia

2021 ◽  
Vol 108 (Supplement_6) ◽  
Author(s):  
A Amin ◽  
J Twigg ◽  
C Bowe ◽  
M Ho
Keyword(s):  
Postoperative Complications ◽  
Oral Cancer ◽  
Diode Laser ◽  
Surgical Excision ◽  
Service Evaluation ◽  
Resection Margins ◽  
Limited Information ◽  
Superficial Infection ◽  
Laser Resection ◽  
Laser Excision

Abstract Aim The use of the diode laser is a frequently employed treatment modality in primary surgical excision, especially for early oral cancer. This is due to advantages offered in precision of excision, and potential reduced post-operative pain compared to other excision methods. Additionally, haemostasis can often be obtained simultaneous to excision. Despite frequent use of laser excision for oral cancer/dysplasia, there is limited information on the incidence of postoperative complications. Method Data was collected retrospectively by review of electronic healthcare records for a 5-year period (Jan 2015-Jan 2020) for patients who underwent transoral laser excision of oral dysplasia in a major UK teaching hospital. The number of short (<30 days) and longer-term complications was evaluated and categorised using the Clavien-Dindo classification. Results A total 260 patients received diode laser resection for oral cancer/dysplasia in this period. Approximately one third of patients had the diagnosis of SCC and 52% of patients were treated on a day case basis. Approximately one third of patients experienced postoperative complications.; including positive or close resection margins (16%), bleeding (8%), superficial infection (6%) and significant postoperative pain (2%). A total of 16% of patients required further treatment in theatre (Clavien-Dindo IIIb). Conclusions The use of lasers for excision of oral tumours and dysplastic lesions is a frequently employed modality, offering advantages to the operating surgeon (improved haemostasis, excellent manoeuvrability) and patients (reduced pain and scarring). Complications are largely predictable in nature, but the surgical team should be aware of potential issues to ensure safe, effective patient care.

scholarly journals TREATMENT OF DOGS WITH ORAL MELANOMA RECURRENCE BY DIODE LASER EXCISION

2016 ◽  
Vol 73 (2) ◽  
pp. 265 ◽  
Author(s):  
Cornel Igna ◽  
Daniel Bumb ◽  
Bogdan Sicoe ◽  
Roxana Dascalu ◽  
Larisa Schuszler
Keyword(s):  
Diode Laser ◽  
Laser Surgery ◽  
Surgical Excision ◽  
Stage I ◽  
Palliative Procedure ◽  
Oral Melanoma ◽  
Oral Malignant Melanoma ◽  
Laser Excision ◽  
Electric Scalpel

Introduction: Treatment of oral melanomas utilizes the surgical excision-resection (Culp et al., 2013) and/or radiation therapy (Proulx et al., 2003), chemotherapy with carboplatin (Brockley et al., 2013), immunotherapy (Ottnod et al., 2013). Treatment based on surgical excision is usually palliative (Freeman et al., 2003). Aims: In the literature even though there are data concerning the prognosis of oral melanomas in dogs after surgery, are missing data after laser excision. Taking into account these findings we wished to present our experience regarding three cases of oral melanoma recurrence and immediate and long term laser surgery results. Materials and Methods: The casuistry consisted of three dogs with recurrent oral malignant melanomas, subjected to surgical reintervention. The initial diagnosis was melanotic melanoma in stage I or II. The animals were brought back at different time intervals from originally excision with electric scalpel. Before reintervention, dogs were subjected to clinical, paraclinical exam and biopsy. Excision of the tumor mass was made with an optical fiber hawing a diameter of 400µm, at a power of 10W and a wavelength of 940 nm with a diode laser. At 1, 2, 3, 6 and 12 months after laser reintervention the dogs were reexamined. Results: Average time in which appeared canine oral melanoma relapse was 58.6 days. After reexamination all cases where reinstatement in stage I. Operators times were held in conditions of comfort with wide access, minimum bleeding, effective hemostasis. After surgery at 24 hours on the intervention place a slight local redness, without swelling and bleeding was observed. Palpation revealed initially also a slight local sensitivity which completely disappeared in 48 hours. There were no grasping and chewing disturbances. Macroscopic healing occurred in 7-9 days. At last recheck performed at 12 months there were no evidences of tumour recurrence or metastasis. Conclusion: Diode laser excision of oral malignant melanoma in dogs can be an alternative palliative procedure to invasive surgical resection procedures. The average of free recurrence and metastasis time after laser surgery has exceeded 360 days in these three cases.

Personalized cloud service review analysis based on modularized ontology

2020 ◽  
Vol 44 (5) ◽  
pp. 953-975
Author(s):  
Emna Ben-Abdallah ◽  
Khouloud Boukadi ◽  
Mohamed Hammami ◽  
Mohamed Hedi Karray
Keyword(s):  
Knowledge Base ◽  
Positive Impact ◽  
Cloud Service ◽  
Service Evaluation ◽  
End Users ◽  
Cloud Services ◽  
Limited Information ◽  
Content Type ◽  
Ontology Language ◽  
Modular Ontology

PurposeThe purpose of this paper is to analyze cloud reviews according to the end-user context and requirements.Design/methodology/approachpropose a comprehensive knowledge base composed of interconnected Web Ontology Language, namely, modular ontology for cloud service opinion analysis (SOPA). The SOPA knowledge base will be the basis of context-aware cloud service analysis using consumers' reviews. Moreover, the authors provide a framework to evaluate cloud services based on consumers' reviews opinions.FindingsThe findings show that there is a positive impact of personalizing the cloud service analysis by considering the reviewers' contexts in the performance of the framework. The authors also proved that the SOPA-based framework outperforms the available cloud review sites in term of precision, recall and F-measure.Research limitations/implicationsLimited information has been provided in the semantic web literature about the relationships between the different domains and the details on how that can be used to evaluate cloud service through consumer reviews and latent opinions. Furthermore, existing approaches are lacking lightweight and modular mechanisms which can be utilized to effectively exploit information existing in social media.Practical implicationsThe SOPA-based framework facilitates the opinion based service evaluation through a large number of consumer's reviews and assists the end-users in analyzing services as per their requirements and their own context.Originality/valueThe SOPA ontology is capable of representing the content of a product/service as well as its related opinions, which are extracted from the customer's reviews written in a specific context. Furthermore, the SOPA-based framework facilitates the opinion based service evaluation through a large number of consumer's reviews and assists the end-users in analyzing services as per their requirements and their own context.

scholarly journals Hepatic Cryotherapy for Cancer: A Reviewand Critique

HPB Surgery ◽  
1996 ◽  
Vol 9 (2) ◽  
pp. 118-120 ◽  
Author(s):  
D. L. Morris
Keyword(s):  
Postoperative Complications ◽  
Hepatic Resection ◽  
Study Design ◽  
Hepatic Failure ◽  
Resection Margin ◽  
Early Experience ◽  
Resection Margins ◽  
Tumor Clearance

Background: Wedge or other nonanatomic hepatic resections, performed in an attempt to spare functional parenchyma, often are not accomplished with clear resection margins and may be complicated by hemorrhage from the depth of the resection.Study Design: The current study describes a technique of cryoassisted hepatic resection that allows for controlled resection with well-defined margins. The early experience in managing 16 tumors in 13 patients is reported.Results: A cryoprobe is inserted into the tumor and freezing performed to a predetermined resection margin using ultrasound control. The ice ball, so formed, is then maintained and excised. The management of these 13 patients was associated with one intraoperative and two postoperative complications, including a death of a patient with cirrhosis who had infected ascites and died as a result of hepatic failure.Conclusions: Cryoassisted hepatic resection seems to be safe and allows resection with good tumor clearance and maximal preservation of functional parenchyma.

scholarly journals Chondrosarcoma of the Nasal Septum—A Rare Subsite: Case Report with Review of Literature

2021 ◽  
Vol 42 (05) ◽  
pp. 506-509
Author(s):  
Nidhi Gupta ◽  
Awadhesh Kumar Pandey ◽  
Kislay Dimri ◽  
Surinder K Singhal ◽  
Neeraj Rathee ◽  
...  
Keyword(s):  
Nasal Septum ◽  
Malignant Tumors ◽  
Surgical Excision ◽  
Metastatic Potential ◽  
Young Female ◽  
Resection Margins ◽  
Diagnostic Dilemma ◽  
Complete Surgical Excision ◽  
Grade Ii ◽  
Common Primary Malignant Bone

AbstractChondrosarcomas are the second most common primary malignant bone tumors. Head and neck chondrosarcomas constitute less than 10% of these tumors, rarely arising from the nasal septum. These are locally aggressive malignant tumors arising from the cartilaginous framework of the nasal septum. Rarity of the tumor coupled with nonspecific symptoms makes it a diagnostic dilemma. Diagnosis requires endoscopy, radiology, and final histopathology for confirmation. Treatment is mainly surgical, requiring complete surgical excision with clear margins. Radiation has a role in unresectable tumors or for tumors with positive margins after surgery. Survival depends on the grade of tumor that predicts the metastatic potential of the tumor. We present a rare case of chondrosarcoma arising from the nasal septum in a 29-year-old young female presenting with complaints of nasal obstruction. Computed tomography was suggestive of a calcified cartilaginous tumor arising from the nasal septum. Endoscopic excision was done and postoperative histopathology showed grade II chondrosarcoma with clear margins. No adjuvant treatment was given to our patient and 2 years post-excision patient is disease free.To conclude, chondrosarcoma of the nasal septum is a rare tumor, with nonspecific symptoms. Surgery with clear margins remains the treatment of choice. Prognosis depends on the extent of tumor at presentation, resection margins, and grade of tumor.

scholarly journals Surgical excision of a large gingival pyogenic granuloma using diode laser: A case report

2020 ◽  
pp. 164-167
Keyword(s):  
Carbon Dioxide ◽  
Case Report ◽  
Diode Laser ◽  
Yttrium Aluminum Garnet ◽  
Surgical Excision ◽  
Pyogenic Granuloma ◽  
Oral Lesions ◽  
Radiographic Findings ◽  
Erbium Doped ◽  
Yttrium Aluminum

Pyogenic granuloma (PG) is a common tumor-like growth observed in response to local irritation, trauma, or hormonal disturbances. It is among the frequently encountered oral lesions occurring at the gingiva. Surgical excision and removal of the underlying cause is the preferred method of treatment. Scalpel, cryosurgery, and laser are used in order to remove this lesion. Currently, different lasers are used for the surgery of PG, which include Carbon dioxide; Neodymium-doped yttrium aluminum garnet; Diode; Erbium-doped yttrium aluminum garnet; and Erbium, chromium-doped yttrium, scandium, gallium and garnet. This case report aims to briefly review clinical and radiographic findings of PG along with a detailed discussion on its management through a 980-nm diode laser.

scholarly journals Two-stage open reduction and internal fixation versus limited internal fixation combined with external fixation: a meta-analysis of postoperative complications in patients with severe Pilon fractures

2018 ◽  
Vol 46 (7) ◽  
pp. 2525-2536 ◽  
Author(s):  
Xueliang Cui ◽  
Hui Chen ◽  
Yunfeng Rui ◽  
Yang Niu ◽  
He Li
Keyword(s):  
Postoperative Complications ◽  
Internal Fixation ◽  
Bone Healing ◽  
Open Reduction ◽  
Lower Risk ◽  
Meta Analysis ◽  
Two Stage ◽  
Superficial Infection ◽  
Tibial Pilon ◽  
Pilon Fractures

Objectives Two-stage open reduction and internal fixation (ORIF) and limited internal fixation combined with external fixation (LIFEF) are two widely used methods to treat Pilon injury. However, which method is superior to the other remains controversial. This meta-analysis was performed to quantitatively compare two-stage ORIF and LIFEF and clarify which method is better with respect to postoperative complications in the treatment of tibial Pilon fractures. Methods We conducted a meta-analysis to quantitatively compare the postoperative complications between two-stage ORIF and LIFEF. Eight studies involving 360 fractures in 359 patients were included in the meta-analysis. Results The two-stage ORIF group had a significantly lower risk of superficial infection, nonunion, and bone healing problems than the LIFEF group. However, no significant differences in deep infection, delayed union, malunion, arthritis symptoms, or chronic osteomyelitis were found between the two groups. Conclusion Two-stage ORIF was associated with a lower risk of postoperative complications with respect to superficial infection, nonunion, and bone healing problems than LIFEF for tibial Pilon fractures. Level of evidence 2.

Solitary Fibrous Tumors Arising from Bilateral Ovaries: A Case Report and Review of the literature

2021 ◽  
Vol 17 ◽  
Author(s):  
Tongtong Tian ◽  
Jing Ye ◽  
Jun Sun
Keyword(s):  
Wide Spectrum ◽  
Surgical Excision ◽  
Integrated Approach ◽  
Late Relapse ◽  
Limited Information ◽  
Mesenchymal Neoplasm ◽  
Fibrous Tumor ◽  
Long Term Behavior

Background: A solitary fibrous tumor (SFT) is a distinct mesenchymal neoplasm. It was originally described as a tumor localized to the pleura but was later reported in several other anatomic sites and exhibited a wide spectrum of histological features. Owing to its rarity, the diagnosis of extrapleural SFT is challenging and requires an integrated approach comprising specific clinical, imaging, histological, and immunohistochemical findings. Case presentation: Herein, we report the imaging findings of a rare case of SFT arising from bilateral ovaries confirmed by surgical excision and histological examination. No adjuvant radiotherapy or chemotherapy was given to the patient, and she was disease-free with no evidence of recurrence or metastasis at the 96-month postoperative follow-up. Although it mostly follows a favorable course, SFT is notoriously difficult for prognostication because of its propensity for late relapse or even metastases in 10–39% of cases. Conclusion: Close follow-up is recommended because of the limited information on its long-term behavior.

scholarly journals diode laser for excisional biopsy of pyogenic granuloma: a case series

2017 ◽  
Vol 5 (2) ◽  
pp. 112
Author(s):  
Gaurav Mahajan ◽  
Aditi Gautam
Keyword(s):  
Diode Laser ◽  
Traumatic Injury ◽  
Case Series ◽  
Surgical Excision ◽  
Excisional Biopsy ◽  
Pyogenic Granuloma ◽  
Low Grade ◽  
Giant Cell Granuloma ◽  
Hormonal Factors ◽  
Peripheral Giant Cell Granuloma

Pyogenic granuloma is one of the inflammatory hyperplasias seen in the oral cavity. This term is a misnomer because the lesion is unrelated to infection and in reality arises in response to various stimuli such as low- grade local irritation, traumatic injury or hormonal factors. The clinical diagnosis of such lesion can be quite challenging because of its close resemblance to certain malignancies like peripheral giant cell granuloma, kaposi’s sarcoma, non hodgkin’s lymphoma etc. for excisional biopsy, options available are conventional surgical excision, electrocautery or lasers. In this report, we seek to highlight the therapeutic advantages achieved with a soft tissue diode laser in the treatment of pyogenic granuloma.

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