ABSTRACT
Muscle sampling via percutaneous biopsy has been shown to be safe and effective using a Bergström needle; however, the use of a single-operator, self-contained, vacuum-assisted biopsy technique has not been explored. We performed a retrospective chart review of muscle biopsy samples obtained using the Vacora® self-contained vacuum-assisted biopsy system between 2013 and 2016, at the Toronto General Hospital. During this period, 102 single-operator muscle biopsies were performed using the Vacora® system. 54/102 showed normal or non-specific findings, while 39/102 were suggestive or diagnostic of a neuromuscular condition. 8 samples did not provide sufficient muscle tissue for diagnosis, and complications (intramuscular hematoma) occurred in 3/102 cases. Mean sample weight was 0.19 grams, which exceeded reported mean sample weights using the suction-modified Bergström technique (0.125 grams). We therefore conclude that the Vacora® vacuum-assisted biopsy system provides a safe and effective method to obtain diagnostic muscle biopsy samples; although complication rates are slightly higher than reported using the Bergström technique, possibly related to more vigorous suction or a sharp needle tip.
Subject(s)
Biopsy, Needle/methods , Muscle, Skeletal/pathology , Muscular Diseases/pathology , Biopsy, Needle/adverse effects , Humans , Retrospective StudiesABSTRACT
OBJETIVO: A biópsia vácuo-assistida é a forma percutânea de biópsia de microcalcificações que obtém a menor taxa de subestimação, porém, seu custo é alto, havendo interesse em se conseguir formas mais baratas de biópsia vácuo-assistida. O objetivo deste trabalho foi testar um dispositivo portátil de biópsia vácuo-assistida que apresenta custo menor. MATERIAIS E MÉTODOS: Foram biopsiadas 35 pacientes que apresentavam agrupamentos de microcalcificações BI-RADS® 4 ou 5. Foram testados a representatividade dos fragmentos colhidos, as dificuldades na reintrodução da cânula e o número de ciclos de colheita. RESULTADOS: Houve obtenção de calcificações representativas em todas as pacientes. Não houve discordância anatomorradiológica, dificuldade na reintrodução da cânula ou complicações graves. CONCLUSÃO: Os dados permitem concluir que o sistema apresenta boa eficácia na obtenção das amostras e com relação de custo-benefício favorável em relação a outros sistemas para a biópsia de microcalcificações, achados em concordância com outras publicações da literatura.
OBJECTIVE: Vacuum-assisted biopsy is the percutaneous technique of breast biopsy with the lowest underestimation rate. However, the cost of such procedure is high and currently there is a considerable interest in developing less expensive techniques. The present study was aimed at testing a less expensive device for vacuum-assisted biopsy of breast microcalcifications. MATERIALS AND METHODS: Thirty-five patients with clustered microcalcifications classified as BI-RADS® 4 or 5 were submitted to biopsy. Collected specimen appropriateness, difficulties in the reinsertion of the cannula and number of biopsy passes were evaluated. RESULTS: Successful specimens collection was achieved in all of the patients. Histo-radiological disagreement, difficulties in the cannula reinsertion or severe complications were not observed. CONCLUSION: The authors conclude that the method is effective in terms of specimens appropriateness and cost-benefit ratio as compared with of biopsy techniques for breast microcalcifications. Such findings are compatible with data reported in the literature.
Subject(s)
Humans , Female , Middle Aged , Calcinosis/pathology , Equipment and Supplies , Breast/pathology , Biopsy , Histological Techniques , Mammography , VacuumABSTRACT
Objective To study the clinical value of VACORA vacuum-assisted rotation system in the treatment of benign breast lesions. Methods Under the screening of dynamic ultrasound,122 beast lesions in 93 patients diagnosed as benign lesions from ultrasound were treated with VACORA vacuum-assisted rotation system,and all the patients were examined for follow-up. Results All the lesions were totally rotated and 119 lesions demonstrated to be benign and 3 lesions were atypical hyperplasia from pathologic examination. In the benign lesions, 72 cases were demonstrated to be fibroadenoma, 39 cases were demonstrated to be fibrosis adenosis,4 cases were intraductal papilloma,2 cases were duct inflammation, 1 case was epithelial hyperplasia of the duct and 1 case was lymphode. In 8 cases,bleeding was seen along the needle tract,which was stopped after compression. Small hematoma was formed in 10 patients in the second day of follow-up, which was disappeared in the 3 to 6 months of the follow-up. And all patients had no remnant lesions in the local area and the incisions were not clear in the skin 3 to 6 months of the follow-up. Hypoechoic focuses were detected out at the original location in the 3 benign cases, which were possibly residual focuses. Conclusions Benign breast lesions could be clearly resected with VACORA rotation system under the screening of ultrasound, which is safe, minimal invasive, prosthetic, and has little complications.
