Complications of the nasal dorsum reconstruction using autologous or alloplastic grafts: evidence from systematic review and meta-analysis / Complicações da reconstrução do dorso nasal com enxerto autólogo ou aloplástico: evidências de uma revisão sistemática e metanálise

Abstract Introduction Augmentation rhinoplasty depends mainly on intact stable bony and cartilaginous parts. Many trials have used different materials as a graft to perform the operation and support the nose. Debate exists whether alloplastic or autogenic grafts are more appropriate. Common available alloplastic grafts include silicone, medpor, and gore-tex. Autogenic grafts are usually derived from costal cartilages. Warping, infection, and hypertrophic scars are the main complications of the procedure. Yet no subgroup analysis has been performed to investigate the effect of different risk factors. Objective To investigate the effect of different types of grafts and the association of the income level of the country on surgery complications. Methods A comprehensive literature search of articles was conducted in PubMed, Cochrane Library, Web of Science, and SCOPUS databases through October 2019. We included articles that used autologous or alloplastic grafts in nasal dorsum reconstruction surgery. We performed subgroup analysis according to the type of graft used, region, and income level of the country. A meta-regression analysis model was carried out from the period of 1999-2018, to study the incidence of these complications over time. Results The overall complication rate was 7.1%, which was higher in the alloplastic group (7.8%) than the autogenic group (6.9%). The most common complications were secondary surgery for re-correction (4.1%), infection (2.1%), warping (1.6%), and hypertrophic scars (1.6%). All outcomes were homogeneous (I2 < 50%). Conclusion Patients with autogenic grafts are less liable to develop complications than their peers reconstructed with alloplastic grafts. Moreover, Asian patients are less susceptible to overall rhinoplasty complications. Attention should be noted for low-income countries in which surgical complications are more prone to occur.

Resumo Introdução A feitura de uma rinoplastia de aumento depende principalmente das partes ósseas e cartilaginosas intactas. Muitos estudos usaram enxertos de diferentes materiais para a feitura da cirurgia e como apoio da estrutura nasal. Ainda existem controvérsias em estudos prévios sobre quais tipos de enxertos, se materiais aloplásticos ou autogênicos, seriam os mais adequados. Os enxertos aloplásticos comuns incluem silicone, medpor e gore-tex. Os enxertos autogênicos são geralmente derivados de cartilagens costais. Deformações, infecção e cicatrizes hipertróficas são as principais complicações do procedimento. No entanto, nenhuma análise de subgrupo foi feita para investigar o efeito de diferentes fatores de risco. Objetivo Investigar o efeito de diferentes tipos de enxertos e o nível de renda do país nas complicações cirúrgicas Método Uma pesquisa abrangente de artigos na literatura foi feita nas bases de dados PubMed, Cochrane Library, Web of Science e SCOPUS até outubro de 2019. Foram incluídos artigos que usaram enxertos autólogos ou aloplásticos em cirurgias de reconstrução do dorso nasal. Foi feita uma análise de subgrupos de acordo com o tipo de enxerto usado, região e nível de renda do país. Um modelo de análise de metarregressão foi feito de 1999 a 2018, para estudar a incidência dessas complicações ao longo do tempo. Resultados A taxa global de complicações foi de 7,1%, a qual foi maior no grupo aloplástico (7,8%) do que no grupo autogênico (6,9%). As complicações mais comuns foram cirurgia secundária para recorreção (4,1%), infecção (2,1%), deformidade (1,6%) e cicatrizes hipertróficas (1,6%). Todos os resultados foram homogêneos (I2 < 50%). Conclusão Os pacientes com enxertos autogênicos são menos propensos a desenvolver complicações, em comparação com seus pares com enxertos aloplásticos. Além disso, pacientes asiáticos são menos suscetíveis a complicações gerais da rinoplastia. Merece atenção o fato de que em países de baixa renda as complicações cirúrgicas são mais propensas a ocorrer.

Adaptability and Stability of Safflower Genotypes for Oil Production.

The study aimed to analyze the agronomic performance of 11 safflower genotypes using adaptability and stability methods, while identifying safflower genotypes with stable behavior and a high grain yield in different environments of the Brazilian Cerrado. Ten lines and a cultivar of safflower were evaluated in four environments in the Brazilian conditions. Our results revealed the genotypes P30, P35, P9, P11, and P31 to be superior for grain yield and P43, P7, P11, and P31 to be superior for oil content. The lowest Wricke index, an indication of genotype stability, was observed for P9 (0.41%), which is considered the most stable genotype, followed by P35 (1.29%) and P31 (1.98%). For the predictability of the behavior of genotypes in the environments, P7 (80.85%), P35 (86.10%), P31 (85.90%), and P9 (97.42%) were considered predictable genotypes. The genotypes P11 (1045.6 kg ha-1 and 19.7%) and P21 (952.7 kg ha-1 and 20.6%) are recommended for cultivation in this region, considering both their grain yield and oil content. Safflower is viable to use out of season in the Brazilian Cerrado. The crop can generate profits for farmers and be used for oil production in periods of uncertain corn production.

A meta-analysis of pre-and postoperative corticosteroids for reducing the complications following facial reconstructive and aesthetic surgery / Uma meta-nálise sobre o uso de corticosteroides pré e pós-operatórios para reduzir as complicações após cirurgia estética e reconstrutiva facial

Abstract Introduction Edema and ecchymosis after facial plastic surgery are a troublesome concern for both patients and surgeons. Corticosteroid administration is thought to shorten the recovery period and reduce these sequelae. Data regarding the efficacy of corticosteroid administration remains controversial among surgeons. Objective We conducted this systematic review and meta-analysis to determine the effect of preand postoperative corticosteroids on postoperative complications in patients undergoing facial reconstructive surgery supported with different subgroup analysis. Methods A comprehensive literature search of articles was conducted in PubMed, Cochrane Central, SCOPUS, and EBSCO through October 2019. We included all clinical trials in which patients underwent any type of facial plastic surgery to study the effect of corticosteroids on postoperative complications. We performed subgroup analysis according to the types and doses of corticosteroid preparation, in addition to a subgroup analysis of preor postoperative corticosteroid usage. All statistical analysis was performed using the RevMan software. Results Nineteen studies were included in this systematic review, but only 10 of them were eligible for meta-analysis. The periorbital edema and ecchymosis scores were significantly reduced in the corticosteroids group compared to placebo −0.82, 95% CI (−1.37, −0.26), and -0.95, 95% CI (−1.32, −0.57), respectively. However, these significant differences were not maintained at day 3 and 7. Smaller doses of corticosteroid (8 mg and 10 mg) were associated with smaller differences in the mean score of upper and lower eyelid edema and ecchymosis, while the higher doses were associated with greater differences. Furthermore, preoperative corticosteroid usage significantly reduced the intraoperative bleeding when compared to placebo for higher doses > 50 mg per day (p < 0.0001), but not for 8 mg corticosteroid (p = 0.06). Adding postoperative steroid dose to the preoperative one was associated with less edema and ecchymosis than preoperative administration alone. Conclusion This comprehensive meta-analysis confirms a statistically significant benefit of preoperative corticosteroids. Furthermore, continuing the steroids postoperatively is associated with long-term reduction of complications. Higher doses of corticosteroids are associated with a more significant reduction in edema and ecchymosis, but further studies are recommended to determine the postoperative side effects, including surgical site infection and delayed healing.

Resumo Introdução O edema e a equimose no pós-operatório da cirurgia plástica facial constituem um problema preocupante para pacientes e cirurgiões. Considera-se que a administração de corticosteroides diminua o período de recuperação e reduza essas complicações. Os dados sobre a eficácia da administração de corticosteroides permanecem controversos entre os cirurgiões. Objetivo Fizemos essa revisão sistemática e metanálise para determinar o efeito da administração de corticosteroides nos períodos pré- e pós-operatório sobre as complicações pós-operatórias em pacientes submetidos à cirurgia reconstrutiva facial apoiada em diferentes análises de subgrupos. Método Foi feita uma busca abrangente de artigos nos bancos de dados PubMed, Cochrane Central, Scopus e Ebsco até outubro de 2019. Incluímos todos os ensaios clínicos cujos pacientes foram submetidos a qualquer tipo de cirurgia plástica facial para estudar o efeito dos corticosteroides nas complicações pós-operatórias. Fizemos a análise de subgrupos de acordo com os tipos e as doses de preparação de corticosteroides, além de uma análise de subgrupos de uso de corticosteroides pré ou pós-operatório. Todas as análises estatísticas foram feitas no software RevMan. Resultados Dezenove estudos foram incluídos nesta revisão sistemática, mas apenas 10 deles foram elegíveis para a metanálise. Os escores de edema periorbital e equimoses reduziram significantemente no grupo de corticosteroides em comparação com o placebo: -0,82, IC95% (-1,37, -0,26) e -0,95, IC95% (-1,32, -0,57), respectivamente. Essas diferenças significantes não se mantiveram nos dias 3 e 7. Doses menores de corticosteroides (8 mg e 10 mg) foram associadas a menores diferenças no escore médio de edema e equimoses palpebrais superiores e inferiores, enquanto as doses mais altas foram associadas a diferenças maiores. Além disso, o corticosteroide pré-operatório reduziu significantemente o sangramento intraoperatório quando comparado ao placebo para doses maiores > 50 mg por dia (p < 0,0001), mas não para 8 mg de corticosteroide (p = 0,06). O uso de corticosteroides no pós- e pré-operatório foi associado a uma diminuição maior de edema e equimoses do que no pré-operatório isoladamente. Conclusão Esta metanálise abrangente confirma um benefício estatisticamente significante do uso de corticosteroides no pré-operatório. Além disso, a manutenção dos esteroides no pós-operatório está associada à redução das complicações em longo prazo. Doses mais altas de corticosteroides estão associadas a uma redução mais significativa no edema e nas equimoses, mas estudos adicionais são recomendados para determinar os efeitos colaterais pós-operatórios como infecção do sítio cirúrgico e atraso na cicatrização.

Complications of the nasal dorsum reconstruction using autologous or alloplastic grafts: evidence from systematic review and meta-analysis.

INTRODUCTION: Augmentation rhinoplasty depends mainly on intact stable bony and cartilaginous parts. Many trials have used different materials as a graft to perform the operation and support the nose. Debate exists whether alloplastic or autogenic grafts are more appropriate. Common available alloplastic grafts include silicone, medpor, and gore-tex. Autogenic grafts are usually derived from costal cartilages. Warping, infection, and hypertrophic scars are the main complications of the procedure. Yet no subgroup analysis has been performed to investigate the effect of different risk factors. OBJECTIVE: To investigate the effect of different types of grafts and the association of the income level of the country on surgery complications. METHODS: A comprehensive literature search of articles was conducted in PubMed, Cochrane Library, Web of Science, and SCOPUS databases through October 2019. We included articles that used autologous or alloplastic grafts in nasal dorsum reconstruction surgery. We performed subgroup analysis according to the type of graft used, region, and income level of the country. A meta-regression analysis model was carried out from the period of 1999-2018, to study the incidence of these complications over time. RESULTS: The overall complication rate was 7.1%, which was higher in the alloplastic group (7.8%) than the autogenic group (6.9%). The most common complications were secondary surgery for re-correction (4.1%), infection (2.1%), warping (1.6%), and hypertrophic scars (1.6%). All outcomes were homogeneous (I2 < 50%). CONCLUSION: Patients with autogenic grafts are less liable to develop complications than their peers reconstructed with alloplastic grafts. Moreover, Asian patients are less susceptible to overall rhinoplasty complications. Attention should be noted for low-income countries in which surgical complications are more prone to occur.

A meta-analysis of pre- and postoperative corticosteroids for reducing the complications following facial reconstructive and aesthetic surgery.

INTRODUCTION: Edema and ecchymosis after facial plastic surgery are a troublesome concern for both patients and surgeons. Corticosteroid administration is thought to shorten the recovery period and reduce these sequelae. Data regarding the efficacy of corticosteroid administration remains controversial among surgeons. OBJECTIVE: We conducted this systematic review and meta-analysis to determine the effect of pre- and postoperative corticosteroids on postoperative complications in patients undergoing facial reconstructive surgery supported with different subgroup analysis. METHODS: A comprehensive literature search of articles was conducted in PubMed, Cochrane Central, SCOPUS, and EBSCO through October 2019. We included all clinical trials in which patients underwent any type of facial plastic surgery to study the effect of corticosteroids on postoperative complications. We performed subgroup analysis according to the types and doses of corticosteroid preparation, in addition to a subgroup analysis of pre- or postoperative corticosteroid usage. All statistical analysis was performed using the RevMan software. RESULTS: Nineteen studies were included in this systematic review, but only 10 of them were eligible for meta-analysis. The periorbital edema and ecchymosis scores were significantly reduced in the corticosteroids group compared to placebo -0.82, 95% CI (-1.37, -0.26), and -0.95, 95% CI (-1.32, -0.57), respectively. However, these significant differences were not maintained at day 3 and 7. Smaller doses of corticosteroid (8 mg and 10 mg) were associated with smaller differences in the mean score of upper and lower eyelid edema and ecchymosis, while the higher doses were associated with greater differences. Furthermore, preoperative corticosteroid usage significantly reduced the intraoperative bleeding when compared to placebo for higher doses > 50 mg per day (p < 0.0001), but not for 8 mg corticosteroid (p = 0.06). Adding postoperative steroid dose to the preoperative one was associated with less edema and ecchymosis than preoperative administration alone. CONCLUSION: This comprehensive meta-analysis confirms a statistically significant benefit of preoperative corticosteroids. Furthermore, continuing the steroids postoperatively is associated with long-term reduction of complications. Higher doses of corticosteroids are associated with a more significant reduction in edema and ecchymosis, but further studies are recommended to determine the postoperative side effects, including surgical site infection and delayed healing.

Resistance exercise training ameliorates chronic kidney disease outcomes in a 5/6 nephrectomy model.

Chronic kidney disease (CKD) is defined by decreased glomerular filtration rate (GFR) or increased albumin excretion leading to renal injury. However, exercise training is an important non-pharmacological intervention that ameliorates and protects against Diabetes Mellitus, cardiovascular disease, and CKD. AIM: Our aim was to evaluate the capability of resistance exercise training (RET) to improve CKD outcomes and the contribution of the renal and muscular Akt/mTOR signaling pathway for RET beneficial effects on a CKD model. MAIN METHODS: Male Wistar rats were subjected to RET, followed for 10 weeks, and randomly divided into 5 groups: Sham: Sham-operated; sedentary and nephrectomy (5/6Nx) (SNS); exercising post-5/6Nx (SNE); exercising pre-5/6Nx (ENS); exercising pre- and post-5/6Nx (ENE). The systolic blood pressure (BP) was measured. Creatinine, proteinuria, and blood urea nitrogen (BUN) were evaluated. After euthanasia Renal and muscular Akt/mTOR signaling pathways were analyzed. KEY FINDING: Our study showed that the SNS presented renal injury, hypertension, weight and muscular mass loss and a higher mortality rate. SNS group also decreased renal IL-10 and increased TNF-alfa and TGF-Beta. Renal AKT, mTOR, and rpS6 pathway were increased, PTEN was decreased on SNS. And muscular Akt and mTOR were decreased on SNS. SIGNIFICANCE: The RET before and after the 5/6Nx ameliorates all these parameters mentioned above, suggesting that RET is a good non-pharmacological approach to diminish complications frequently found in CKD. We also suggest that the AKT-m-TOR pathway can play an important role in these beneficial outcomes of RET on the CKD animal model.

First in human evaluation of a novel Sirolimus-eluting ultra-high molecular weight bioresorbable scaffold: 9-, 24-and 36-months imaging and clinical results from the multi-center RENASCENT study.

BACKGROUND: RENASCENT is a prospective, multi-center first-in-human clinical study to evaluate the clinical performance of the novel sirolimus-eluting 150-µm strut thickness FORTITUDE® BRS for percutaneous coronary intervention of single de novo coronary lesions. METHODS: FORTITUDE® BRS was tested in a prospective study in Italy and Colombia. Study objectives were in-scaffold angiographic late lumen loss (LLL) measured by quantitative coronary angiography and target vessel failure (TVF) defined as the composite rate of cardiac death, target vessel myocardial infarction or ischemia driven target lesion revascularization (TLR) at 9- and 24-months with clinical results up to 36-months. RESULTS: A total of 63 patients were enrolled. All patients underwent lesion pre-dilatation and 22 patients (34.9%) underwent post-dilatation. Clinical device and procedural success was 98.4% (62/63 patients) and 96.8% (61/63 patients) respectively. At 9-months, TVF occurred in 3/61 (4.9%) of the patients including 2 peri-procedural MI and one ischemia-driven TLR. Between 9- to 24-months, ischemia-driven TLR occurred in 3 additional patients (4.9%) including 1 patient who presented with very late ST after stopping all medications. There were no further TVF between 24- and 36-months. CONCLUSIONS: In this multi-center prospective study, the FORTITUDE® BRS was shown to be safe and effective in the treatment of single coronary lesions with low levels of TVF and LLL at 9- and 24-months. It was shown to be clinically safe upto 36-months follow-up.