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

Author(s):  
Cornel Igna ◽  
Daniel Bumb ◽  
Bogdan Sicoe ◽  
Roxana Dascalu ◽  
Larisa Schuszler

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.

2021 ◽  
Vol 108 (Supplement_6) ◽  
Author(s):  
A Amin ◽  
J Twigg ◽  
C Bowe ◽  
M Ho

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.


Healthcare ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 267
Author(s):  
Maria Vittoria Viani ◽  
Luigi Corcione ◽  
Chiara Di Blasio ◽  
Ronell Bologna-Molina ◽  
Paolo Vescovi ◽  
...  

Oral granular cell tumor (GCT) is a relatively rare, benign lesion that can easily be misdiagnosed. Particularly, the presence of pseudoepitheliomatous hyperplasia might, in some cases, lead to the hypothesis of squamous cell carcinoma. Surgical excision is the treatment of choice. Recurrence has been reported in up to 15% of cases treated with conventional surgery. Here, we reported a case of GCT of the tongue in a young female patient, which was successfully treated through 445 nm diode laser excision. Laser surgery might reduce bleeding and postoperative pain and may be associated with more rapid healing. Particularly, the vaporization effect on remnant tissues could eliminate GCT cells on the surgical bed, thus hypothetically leading to a lower rate of recurrence. In the present case, complete healing occurred in 1 week, and no recurrence was observed after 6 months. Laser surgery also allows the possibility to obtain second intention healing. Possible laser-induced histopathological artifacts should be carefully considered.


2019 ◽  
Author(s):  
Matías Nicolás Tellado ◽  
Felipe Horacio Maglietti ◽  
Sebastián Diego Michinski ◽  
Guillermo Ricardo Marshall ◽  
Emanuela Signori

ABSTRACTElectrochemotherapy is a treatment modality which has been increasingly used in veterinary and human medicine for treating cutaneous and subcutaneous tumors. In this prospective work we evaluated the outcome of using electrochemotherapy as a first-line treatment for canine oral melanoma in different stages, with the aim of determining predictive factors of response to the treatment. Mucosal melanoma is the most common cause of oral cancer in dogs. Canine oral malignant melanoma is very similar to human oral melanoma in many aspects, being a very good translational model for studying response to this treatment. Sixty-seven canine patients were treated. Intravenous bleomycin was the preferred drug, and the standard operating procedures for electrochemotherapy were followed. The patients were followed-up for two years. According to WHO criteria, the objective response per stage was: stage I 100%, stage II 89.5%, stage III 57.7% and, stage IV 36.4%. The overall median survival was 7.5 months (2-30 months, mean 9.1 months). Median overall survival of patients in stage I was 16.5 months, in stage II was 9 months, in stage III 7.5 months, and in stage IV 4.5 months. The average number of electrochemotherapy sessions was 1.5 for every stage. The incidence of new metastases among treated patients was 28.4%. Patients in advanced stages, with bone involvement, and caudal location of the tumor had poorer response rates and shorter overall survival times. The treatment greatly improved the quality of life of the patients. Electrochemotherapy is an important technique in the oncological armamentarium against melanoma, and these results can be used to predict human response to this therapy in each stage.


2005 ◽  
Vol 173 (4S) ◽  
pp. 116-117
Author(s):  
Hannes Steiner ◽  
Reinhard Peschel ◽  
Tilko Müller ◽  
Christian Gozzi ◽  
Georg C. Bartsch ◽  
...  

Author(s):  
Roman Kartavykh ◽  
Igor Borshchenko ◽  
Gennadiy Chmutin ◽  
Andrey Baskov ◽  
Vladimir Baskov

Purpose: a comparative analysis of long-term clinical and radiological outcomes of bilateral microsurgical decompression from unilateral approach and open fusion surgery in the treatment of patients with stable stage I lumbar degenerative spondylolisthesis complicated by spinal stenosis. Materials and methods: this study included 83 patients with degenerative stage I lumbar spondylolisthesis, combined with spinal stenosis at one/several levels. Bilateral microsurgical decompression from unilateral approach was performed in group A (n = 41), in group B (n = 42) we used transforaminal lumbar interbody fusion. Results: intraoperative blood loss and operation time significantly prevailed in group B (P < 0,05). Pain in the legs (VAS), Oswestry disability index significantly decreased in both groups in the long-term postoperative period. No statistical difference in these was found in groups A and B (P = 0,59; P = 0,10). Lower back pain in both groups at the follow-up period had a significant difference: in fusion group there was a significantly higher intensity, than in group А (P < 0,001). Assessment of radiological outcomes in group A at the level of spondylolisthesis showed a slight decrease in segment stability: an increase in anteroposterior displacement of the vertebrae by an average of 0,44 mm, the angular difference by 0,77°, an increase in displacement of the vertebral body by 1,30 % (P < 0,05). Conclusion: minimally bilateral microsurgical decompression from unilateral approach is an effective method for treatment of stable stage I degenerative lumbar spondylolisthesis, combined with spinal stenosis, allowing to achieve significant regression of leg pain and disability in the long-term postoperative period. And this method admits to significantly decrease of low back pain, then in fusion surgery, as well as a low risk of postoperative instability and reoperation with instrumentation.


1998 ◽  
Vol 16 (2) ◽  
pp. 733-734 ◽  
Author(s):  
H W Herr ◽  
N Bar-Chama ◽  
M O'Sullivan ◽  
P C Sogani

PURPOSE We report long-term paternity in men with stage I testis tumors who were managed initially by surveillance. PATIENTS AND METHODS One hundred five patients with clinical stage I nonseminomatous germ cell tumors of the testis were entered on a surveillance protocol and followed up for more than 10 years. Actual fertility potential was assessed by pregnancy. RESULTS Of the 105 patients, 41 (39%) have fathered children, which includes 36 of 78 (46%) patients while on active surveillance and five of 27 (19%) patients after treatment for relapse. Of 63 couples who attempted a pregnancy on surveillance or were presumed capable of impregnation (whether they tried or not), 41 (65%) were successful. CONCLUSION These results show that the majority of men with stage I testis tumor who are on surveillance after orchiectomy, have a suitable partner, and attempt impregnation achieve a successful pregnancy. Pregnancy rates appear to be less than reported in men who have a nerve-sparing retroperitoneal lymph node dissection (RPLND) because more patients on surveillance require treatment for relapse, which reduces their chances for pregnancy.


Cancers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 2942
Author(s):  
Tamara Mc Erlain ◽  
Aileen Burke ◽  
Cristina M. Branco

To prevent cancer cells replacing and outnumbering their functional somatic counterparts, the most effective solution is their removal. Classical treatments rely on surgical excision, chemical or physical damage to the cancer cells by conventional interventions such as chemo- and radiotherapy, to eliminate or reduce tumour burden. Cancer treatment has in the last two decades seen the advent of increasingly sophisticated therapeutic regimens aimed at selectively targeting cancer cells whilst sparing the remaining cells from severe loss of viability or function. These include small molecule inhibitors, monoclonal antibodies and a myriad of compounds that affect metabolism, angiogenesis or immunotherapy. Our increased knowledge of specific cancer types, stratified diagnoses, genetic and molecular profiling, and more refined treatment practices have improved overall survival in a significant number of patients. Increased survival, however, has also increased the incidence of associated challenges of chemotherapy-induced morbidity, with some pathologies developing several years after termination of treatment. Long-term care of cancer survivors must therefore become a focus in itself, such that along with prolonging life expectancy, treatments allow for improved quality of life.


2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Chang-Ming Huang ◽  
Jian-Xian Lin ◽  
Chao-Hui Zheng ◽  
Ping Li ◽  
Jian-Wei Xie ◽  
...  

Objectives. To investigate the prognostic impact of the number of dissected lymph nodes (LNs) in gastric cancer after curative distal gastrectomy.Methods. The survival of 634 patients who underwent curative distal gastrectomy from 1995 to 2004 was retrieved. Long-term surgical outcomes and associations between the number of dissected LNs and the 5-year survival rate were investigated.Results. The number of dissected LNs was one of the most important prognostic indicators. Among patients with comparable T category, the larger the number of dissected LNs was, the better the survival would be (). The linear regression showed that a significant survival improvement based on increasing retrieved LNs for stage II, III and IV (). A cut-point analysis yields the greatest variance of survival rate difference at the levels of 15 LNs (stage I), 25 LNs (stage II) and 30 LNs (stage III).Conclusion. The number of dissected LNs is an independent prognostic factor for gastric cancer. To improve the long-term survival of patients with gastric cancer, removing at least 15 LNs for stage I, 25 LNs for stage II, and 30 LNs for stage III patients during curative distal gastrectomy is recommended.


2001 ◽  
Vol 124 (4) ◽  
pp. 459-463 ◽  
Author(s):  
David B. Wexler ◽  
Gilead Berger ◽  
Ari Derowe ◽  
Dov Ophir

OBJECTIVE: In this study we sought to define the histologic changes produced by laser treatment of inferior turbinates. STUDY DESIGN: Eight inferior turbinates with prior laser treatment (mean, 26.8 months) were analyzed by light microscopy after turbinectomy for relief of refractory nasal obstruction. Histologic findings were compared with those of a group of 8 hypertrophic inferior turbinates that had no previous laser surgery. RESULTS: Laser-treated areas of the inferior turbinates demonstrated a histologically bland appearance, with marked diminution of seromucinous glands and relative preponderance of connective tissue matrix. Prominence of venous sinusoids was also significantly reduced in the laser-treated areas. Surface epithelium including goblet cells was reconstituted over the areas of laser application. CONCLUSION: Clinical laser surgery of the inferior turbinate produces striking long-term histologic changes. SIGNIFICANCE: The data suggest a differential response of turbinate histologic components to application of laser energy, with the glandular component being particularly sensitive. Further correlative study is needed to clarify the clinical significance of laser-induced histologic changes in inferior turbinates.


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