Incidência de seroma em abdominoplastia com e sem uso de drenos e pontos de adesão: revisão sistemática e metanálise / Incidence of seroma in abdominoplasty with versus without the use of drains and quilting sutures: a systematic review and meta-analysis

Introdução: A abdominoplastia é um procedimento para a melhoria do contorno corporal e a técnica tem sido aprimorada pela associação da dissecção limitada do retalho cutâneo e pontos de adesão no mesmo ato operatório, evitando-se a formação de seroma pós-abdominoplastia, complicação que incomoda tanto o paciente quanto o cirurgião. Portanto, o objetivo é avaliar se o uso de pontos de adesão está associado a menor incidência de seroma após abdominoplastia quando comparado ao uso de drenos. Métodos: Revisão sistemática da literatura com metanálise, envolvendo as seguintes bases de dados: Science Direct, Scielo, Pubmed, Lilacs, CINAHL e Scopus. Para analisar os dados foi utilizado o programa Stata 12.0 e a estatística I² proposta por Higgins, com intervalo de confiança de 95% para o risco relativo para seroma, segundo o tipo de intervenção (dreno, ponto de adesão, dreno com ponto de adesão). Sendo registrado no PROSPERO sob o número CRD42019120399. Resultados: Cinco estudos preencheram os critérios de inclusão e foram incluídos na metanálise. Ao comparar o uso de dreno de sucção com pontos de adesão, os pontos de adesão mostraram um fator de proteção na prevenção do seroma (RR: 0,13; IC 95%: 0,02-0,66). Conclusão: Os achados sugerem que o uso de pontos de adesão em abdominoplastia em detrimento do uso de drenos pode ser uma técnica eficaz para prevenção da formação de seromas.

Introduction: Abdominoplasty, which aims to improve body contour, has been upgraded by its association with limited dissection of the cutaneous flap and quilting sutures in the same surgery to avoid the formation of postabdominoplasty seroma, a complication that troubles both patient and surgeon. Therefore, this study aimed to assess whether the use of quilting sutures is associated with a lower incidence of seroma after abdominoplasty than the use of drains. Methods: A systematic review of the literature and a meta-analysis were performed of the Science Direct, Scielo, Pubmed, Lilacs, CINAHL, and Scopus databases. The data analysis was performed using the Stata 12.0 program and the I² statistic proposed by Higgins, with a 95% confidence interval for the relative risk for seroma by intervention type (drain, quilting sutures, drain with quilting sutures). The study was registered in PROSPERO (CRD42019120399). Results: Five studies met the inclusion criteria and were included in the meta-analysis. Quilting sutures showed a protective effect (versus use of drain with quilting sutures) in the prevention of seroma (relative risk, 0.13; 95% confidence interval, 0.02­0.66). Conclusion: These findings suggest that the use of quilting sutures instead of drains in abdominoplasty can effectively prevent seroma formation.

Evaluation of the effectiveness of platelet-rich plasma in the bone consolidation of patients submitted to lumbar arthrodesis / Avaliação da eficácia do plasma rico em plaquetas na consolidação óssea de pacientes submetidos a artrodese lombar

ABSTRACT OBJECTIVE: To determine whether the use of autograft associated with platelet-rich plasma (PRP) increases bone healing in patients undergoing lumbar fusion. METHOD: This was a prospective, descriptive, and comparative study, which included 40 patients undergoing lumbar fusion, who were divided into two groups: group I, autograft only, and group II, autograft associated with PRP. After surgery, patients were followed-up on the first, third, and sixth month. The Molinari radiographic classification and Glassman tomographic classification were used as criteria to analyze the bone consolidation. RESULT: Comparing the group I with group II, according to the criteria of Molinari, bilateral fusion was observed in 27.5% of the patients in group I in the first month after surgery. In group II, the rate of bilateral fusion was 25.0% and 20% in the third and sixth months, respectively. The results of computed tomography scans performed at six months after surgery indicated, according to the criteria of Glassman, a rate of bilateral solid fusion of 15.0% and 10.0% in groups I and II, respectively. CONCLUSION: The use of PRP showed no significant difference in bone healing in cases of lumbar arthrodesis.

RESUMO OBJETIVO: Analisar se o uso de enxerto autólogo associado a plasma rico em plaqueta (PRP) aumenta a consolidação óssea em pacientes submetidos à artrodese lombar. MÉTODO: Estudo prospectivo, de caráter descritivo e comparativo, com 40 pacientes submetidos à artrodese lombar, que foram divididos em dois grupos: grupo I, somente enxerto autólogo, e grupo II, enxerto autólogo associado a PRP. Após o procedimento cirúrgico, o acompanhamento foi feito no primeiro, terceiro e sexto mês. Os critérios de classificação radiográfica de Molinari e tomográfica de Glassman foram usados como padrão para analisar a consolidação. RESULTADO: Na comparação do grupo I com o grupo II no primeiro mês de pós-operatório, de acordo com os critérios de Molinari, 27,5% dos pacientes apresentaram fusão bilateral no grupo I. No terceiro e sexto mês, observou-se uma taxa de fusão bilateral de 25% e 20% para o grupo II. O resultado das tomografias feitas no sexto mês de pós-operatório indicou, de acordo com os critérios de Glassman, uma taxa de fusão sólida bilateral de 15% e 10% nos grupos I e II, respectivamente. CONCLUSÃO: Observou-se que o uso do PRP não apresentou diferença significativa na consolidação óssea nas artrodeses lombares.

Phagocytic function of lower spleen pole and autogenous splenic implants in rats

PURPOSE: To investigate whether there are differences between the phagocytic function of the remaining lower spleen pole after subtotal splenectomy and autogenous splenic implants. METHODS: Thirty-six male Wistar rats, weighting 364 ± 60g were used. They were subjected to subtotal splenectomy preserving the lower spleen pole and to autogenous splenic implant in the greater omentum. Its viability was assessed microscopically. Phagocytic function was assessed by splenic uptake of the radioisotope-labeled colloid and by macrophages counting. RESULTS: The viability of the autogenous splenic implant and of the lower spleen pole was found in 33 animals, with no difference between them. The weight of the implants was higher than the lower pole of animals from groups G1, G7, G30, G60 and G120. The implants phagocytic function by radioisotope uptake was higher than the lower pole in G7 and G120 groups and it did not differ from the other groups. The number of macrophages was higher in G1, G60, G90 and G120 and did not differ from the other groups. CONCLUSION: Until the 16th week, the phagocytic function was more pronounced in autogenous splenic implants when compared with the lower spleen pole, but it became similar thereafter. .