Comparación de desenlaces a corto plazo de gastrectomía laparoscópica mínimamente invasiva en adultos mayores con cáncer gástrico localmente avanzado / Comparison of short-term outcomes of minimally invasive laparoscopic gastrectomy in older adults with locally advanced gastric cancer

Introducción. El objetivo de este estudio fue comparar los desenlaces a corto plazo de la gastrectomía laparoscópica en adultos vs. adultos mayores con cáncer gástrico localmente avanzado en una cohorte de un país occidental. Métodos. Estudio de cohorte prospectivo en pacientes sometidos a gastrectomía laparoscópica por cáncer gástrico localmente avanzado, en el Hospital Universitario Erasmo Meoz, de Cúcuta, Colombia, entre noviembre de 2014 y diciembre de 2018. Se realizó análisis descriptivo, de comparación de grupos y bivariado. Resultados. De un total de 116 pacientes, 51 pacientes (44 %) tenían 65 años o más y 63 pacientes (54 %) eran hombres. No se encontró diferencia estadísticamente significativa al comparar los pacientes menores de 65 años con los de 65 años o más. La mediana del tiempo operatorio fue de 240 minutos en ambos grupos (p>0,05), la mediana de los márgenes de resección macroscópica fue 6 cm vs. 5 cm (p>0,05), la mediana de los ganglios linfáticos disecados fue 25 vs. 19 (p>0,05), la mediana de ganglios linfáticos positivos fue 4 vs. 3 (p>0,05), la mediana de estancia fue de 7 días en ambos grupos (p>0,05). La tasa general de complicaciones posoperatorias no difirió significativamente entre adultos (7%) y adultos mayores (11 %) (p>0,05) y no se observaron diferencias significativas en las tasas de complicaciones menores (Clavien-Dindo grado II; 3-5 % vs. 6-12 %; p>0,05) y graves (Clavien-Dindo ≥ IIIa; 3-5 % vs. 4-8 %; p>0,05). Conclusiones. No se encontraron diferencias estadísticamente significativas en los resultados a corto plazo entre los pacientes adultos y adultos mayores con cáncer gástrico localmente avanzado tratados con gastrectomía laparoscópica. Esta técnica es segura en ancianos.

Introduction. The objective of this study was to compare the short-term outcomes of laparoscopic gastrectomy in adults vs. older patients with locally advanced gastric cancer from a Western country cohort. Methods. Prospective cohort study in patients undergoing laparoscopic gastrectomy for locally advanced gastric cancer at the Hospital Universitario Erasmo Meoz, de Cúcuta, Colombia, between November 2014 and December 2018. Descriptive, group comparison and bivariate analysis was performed. Results. Of a total of 116 patients, 51 patients (44%) were 65 years or older and 63 patients (54%) were men. No statistically significant difference was found when comparing patients under 65 years of age with those 65 years of age or older. The median operating time was 240 minutes in both groups (p>0.05), the median macroscopic resection margins were 6 cm vs. 5 cm (p>0.05), the median number of lymph nodes dissected was 25 vs. 19 (p>0.05), the median number of positive lymph nodes was 4 vs. 3 (p>0.05), the median stay was 7 days in both groups (p>0.05). The overall rate of postoperative complications did not differ significantly between adults (7%) and older adults (11%) (p>0.05) and no significant differences were observed in the rates of minor (Clavien-Dindo grade II; 3-5% vs. 6-12%; p>0.05) and severe complications (Clavien-Dindo ≥ IIIa; 3-5% vs. 4-8%; p>0.05). Conclusions. No statistically differences were found in short-term outcomes between adult and older patients with locally advanced gastric cancer treated with laparoscopic gastrectomy. This technique is safe in the elderly.

Caracterización de los desenlaces quirúrgicos a corto plazo en gastrectomía por laparoscopia en un centro de alto volumen: 10 años de experiencia / Short-term surgical outcomes of laparoscopic gastrectomy in a high-volume center: 10-year experience

Introducción. El cáncer gástrico en Colombia es la segunda neoplasia más común en hombres y la cuarta en mujeres. En los últimos años se han descrito ampliamente los beneficios del abordaje laparoscópico en el cáncer gástrico frente a sangrado, recuperación postoperatoria y complicaciones, sin afectar los resultados oncológicos. Métodos. Estudio observacional retrospectivo de pacientes llevados a gastrectomía laparoscópica en la Clínica Universitaria Colombia durante un período de diez años, entre 2013 y 2023. Se describieron los resultados perioperatorios en cuanto a estancia hospitalaria, sangrado operatorio, duración del procedimiento, complicaciones, causas de reintervención y mortalidad en los primeros 30 días. Resultados. Se incluyeron 418 pacientes, 58,9 % hombres, con una edad promedio de 60,8 años. Se documentó un tiempo quirúrgico promedio de 228,7 minutos, con un sangrado de 150 ml. La media de ganglios linfáticos resecados fue de 26,1 ± 11,4. La estancia hospitalaria en promedio fue de 4 ± 4 días, y se registraron complicaciones en 104 sujetos, con una tasa promedio de 24 %, de las cuales 29 (27,4 %) obtuvieron una clasificación Clavien-Dindo IIIB. Conclusiones. La gastrectomía por laparoscopia en un centro de alto volumen y con cirujanos experimentados en Colombia, tiene resultados perioperatorios similares a lo reportado en la literatura mundial. Aún se requiere de estudios de mayor fuerza de asociación para establecer recomendaciones sobre el uso rutinario de este abordaje en patología maligna avanzada.

Introduction. Gastric cancer in Colombia is the second most common neoplasm in men and the fourth in women. In recent years, the benefits of the laparoscopic approach in gastric cancer against bleeding, postoperative recovery com and complications have been widely described, without affecting oncological results. Methods. Retrospective observational study of patients undergoing laparoscopic gastrectomy at the Clínica Universitaria Colombia over a period of ten years, between 2013 and 2023. Perioperative results were described in terms of hospital stay, operative bleeding, duration of the procedure, complications, causes of reintervention, and mortality in the first 30 days. Results. 418 patients were included, 58.9% men, with an average age of 60.88 years. An average surgical time of 228.7 minutes was documented, with a blood loss of 150 ml. The mean number of lymph nodes resected was 26.1 ± 11.4. The average hospital stay was 4 ± 4 days, and complications were recorded in 104 subjects, with an average rate of 24%, of which 29 (27.4%) obtained a Clavien-Dindo IIIB classification. Conclusions. Laparoscopic gastrectomy in a high-volume center and with experienced surgeons in Colombia has perioperative results similar to those reported in the world literature. Studies with greater strength of association are still required to establish recommendations on the routine use of this approach in advanced malignant pathology.

Protocolo de recuperación mejorada después de cirugía (ERAS) atenúa el estrés y acelera la recuperación en pacientes después de resección radical por cáncer colorrectal: Experiencia en la Clínica Universitaria Colombia / Enhanced Recovery After Surgery (ERAS) protocol attenuates stress and accelerates recovery in patients after radical resection for colorectal cancer: Experience at Clínica Universitaria Colombia

Introducción. El conjunto de estrategias de recuperación mejorada después de la cirugía (ERAS, por sus siglas en inglés) constituye un enfoque de atención multimodal y multidisciplinario, cuyo propósito es reducir el estrés perioperatorio de la cirugía, disminuir la morbilidad y acortar la estancia hospitalaria. Este estudio tuvo como objetivo describir los resultados clínicos de pacientes sometidos a cirugía por cáncer colorrectal, identificando las complicaciones principales y los factores perioperatorios relacionados con el alta temprana. Métodos. Se analizaron los pacientes consecutivos sometidos a cirugía colorrectal entre los años 2020 y 2023, todos los cuales siguieron el protocolo ERAS institucional. Se evaluaron las características clínicas, los factores perioperatorios, los desenlaces postoperatorios y la tasa global de adherencia al protocolo. Resultados. Un total de 456 pacientes fueron sometidos a cirugía colorrectal, 51% de sexo masculino, con edad media de 60 años. La mayoría de las intervenciones se realizaron por laparoscopia (78 %), con una tasa de conversión del 14,5 %. Las complicaciones postoperatorias incluyeron fuga anastomótica (4,6 %), sangrado, infección intraabdominal y obstrucción intestinal. La estancia hospitalaria promedio fue de 4 días y la mortalidad del 2,8 %. La tasa global de adherencia al protocolo ERAS fue del 84,7 %. Conclusiones. El enfoque combinado de cirugía laparoscópica y protocolo ERAS es factible, seguro y se asocia con una estancia hospitalaria más corta. La implementación y adherencia al protocolo ERAS no solo mejora los resultados postoperatorios, sino que también resalta la importancia de acceder a datos sólidos, permitiendo mejorar la atención perioperatoria local.

Introduction. The Enhanced Recovery After Surgery (ERAS) protocol is a multimodal, multidisciplinary approach to care, the purpose of which is to reduce the perioperative stress of surgery, decrease morbidity, and shorten hospital stay. This study aimed to describe the clinical outcomes of patients undergoing surgery for colorectal cancer, identifying the main complications and perioperative factors related to early discharge. Methods. Consecutive patients undergoing colorectal surgery between 2020 and 2023 were analyzed, who followed the institutional ERAS protocol. Clinical characteristics, perioperative factors, postoperative outcomes, and overall protocol adherence rate were evaluated. Results. A total of 456 patients underwent colorectal surgery, 51% male, with a mean age of 60 years. Most interventions were performed laparoscopically (78%), with a conversion rate of 14.5%. Postoperative complications included anastomotic leak (4.6%), followed by bleeding, intra-abdominal infection, and intestinal obstruction. The average hospital stay was 4 days and mortality was 2.8%. The overall adherence rate to the ERAS protocol was 84.7%. Conclusions. The combined approach of laparoscopic surgery and ERAS protocol is feasible, safe, and associated with a shorter hospital stay. Implementation and adherence to the ERAS protocol not only improves postoperative outcomes, but also highlights the importance of accessing solid data, allowing for improved local perioperative care.

Outcomes of Minimally Invasive Aortic Valve Replacement in Obese Patients: A Propensity-Matched Study

ABSTRACT Introduction: Obese patients are at risk of complications after cardiac surgery. The aim of this study is to investigate safety and efficacy of a minimally invasive approach via upper sternotomy in this setting. Methods: We retrospectively reviewed 203 obese patients who underwent isolated, elective aortic valve replacement between January 2014 and January 2023 - 106 with minimally invasive aortic valve replacement (MIAVR) and 97 with conventional aortic valve replacement (CAVR). To account for baseline differences, a propensity-matching analysis was performed obtaining two balanced groups of 91 patients each. Results: The 30-day mortality rate was comparable between groups (1.1% MIAVR vs. 0% CAVR, P=0.99). MIAVR patients had faster extubation than CAVR patients (6 ± 2 vs. 9 ± 2 hours, P<0.01). Continuous positive airway pressure therapy was less common in the MIAVR than in the CAVR group (3.3% vs. 13.2%, P=0.03). Other postoperative complications did not differ significantly. Intensive care unit stay (1.8 ± 1.2 vs. 3.2 ± 1.4 days, P<0.01), but not hospital stay (6.7 ± 2.1 vs. 7.2 ± 1.9 days, P=0.09), was shorter for MIAVR than for CAVR patients. Follow-up survival was comparable (logrank P-value = 0.58). Conclusion: MIAVR via upper sternotomy has been shown to be a safe and effective option for obese patients. Respiratory outcome was promising with shorter mechanical ventilation time and reduced need for post-extubation support. The length of stay in the intensive care unit was reduced. These advantages might be important for the obese patient to whom minimally invasive surgery should not be denied.

"Single-Surgeon" versus "Dual-Surgeon" Robot-Assisted Radical Prostatectomy and Pelvic Lymph-nodes Dissection: Comparative Analysis of Perioperative Outcomes

ABSTRACT Purpose: To compare the perioperative outcomes of robot-assisted radical prostatectomy (RARP) with pelvic lymph-nodes dissection (PLND) when the same surgeon performs RARP and PLND versus one surgeon performs RARP and another surgeon performs PLND. Materials and Methods: From January 2022 to March 2023, data of consecutive patients who underwent RARP with PLND were prospectively collected. The surgeries were performed by two "young" surgeons with detailed profile. Specifically for the study purpose, one surgeon performed RARP, and the other surgeon performed PLND. A set of surgeries performed according to the standard setup (i.e., the same surgeon performing both RARP and PLND) was retrieved from the institutional database and used as comparator arm. To test the study hypothesis, patients were divided into two groups: "dual-surgeon" versus "single-surgeon". Results: Fifty patients underwent RARP and PLND performed according to dual-surgeon setup and were compared to the last 50 procedures performed according to the standard single-surgeon setup. Patients in the groups had comparable baseline characteristics. Dual-surgeon interventions had significantly shorter median total operative (194 [IQR 178-215] versus 174 [IQR 146-195] minutes, p<0.001) and console time (173 [IQR 158-194] versus 154 [IQR 129-170] minutes, p<0.001). No significant differences were found in terms of blood loss, intraoperative complications, postoperative outcomes, and final pathology results. Conclusions: The present analysis found that when RARP and PLND are split onto two surgeons, the operative time is shorter by 20 minutes compared to when a single surgeon performs RARP and PLND. This is an interesting finding that could sponsor further studies.

Lumbar safety triangle: comparative study of coronal and coronal oblique planes in 3.0-T magnetic resonance imaging / Triângulo de segurança lombar: estudo comparativo dos planos coronal e coronal oblíquo em ressonância magnética 3.0-T

Abstract Objective: To compare the measurements of the lumbar safety triangle (Kambin's triangle) and the invasion of the dorsal root ganglion in the triangle in coronal and coronal oblique planes. Materials and Methods: A cross-sectional study, in which 210 3.0-T magnetic resonance images of L2-L5 were analyzed in coronal and coronal oblique planes. Exams with lumbar spine anomalies were excluded. Demographic (sex and age) and radiological variables were recorded by a single evaluator. Results: Most sample was female (57.1%), mean age 45.5 ± 13.3 (18-98 years). The measurements average, as well as the areas, gradually increased from L2 to L5. The dorsal root ganglion invaded the triangle in all images. The safety triangle average area was smaller in the coronal oblique plane than in the coronal plane. Of the seven dimensions of safety triangle obtained for each level of the lumbar spine, six were significantly smaller in the coronal oblique plane than in the coronal plane. The only dimension that showed no difference was the smallest ganglion dimension. Conclusion: The dimensions and areas investigated were smaller in coronal oblique plane, especially the area (difference > 1 mm). The analysis of the triangular zone in this plane becomes important in the preoperative assessment of minimally invasive procedures.

Resumo Objetivo: Comparar as medidas do triângulo de segurança lombar (triângulo de Kambin) e invasão do gânglio da raiz dorsal no triângulo nas incidências coronal e coronal oblíqua. Materiais e Métodos: Estudo transversal, em que foram analisadas 210 imagens de ressonância magnética 3.0-T de L2-L5 nos planos coronal e coronal oblíquo. Foram excluídos exames com anomalias da coluna lombar. Variáveis demográficas (sexo e idade) e radiológicas foram registradas por um único avaliador. Resultados: A maioria da amostra era do sexo feminino (57,1%), com idade média de 45,5 ± 13,3 (18-98 anos). A média das medidas, assim como as áreas, aumentaram gradativamente de L2 a L5. O gânglio da raiz dorsal invadiu o triângulo em todas as imagens. A área média do triângulo de segurança foi menor na incidência coronal oblíqua do que na incidência coronal. Das sete dimensões do triângulo de segurança obtidas para cada nível da coluna lombar, seis foram significativamente menores no plano coronal oblíquo do que no plano coronal. Única dimensão que não apresentou diferença foi a menor dimensão do gânglio. Conclusão: As dimensões e áreas investigadas foram menores na incidência coronal oblíqua, especialmente a área (diferença > 1 mm). A análise da zona triangular nesta incidência torna-se importante na avaliação pré-operatória de procedimentos minimamente invasivos.

Long-term oncological and surgical outcomes after Video Endoscopic Inguinal Lymphadenectomy (VEIL) in patients with penile cancer

ABSTRACT Objective: To report outcomes from the largest multicenter series of penile cancer patients undergoing video endoscopic inguinal lymphadenectomy (VEIL). Materials and Methods: Retrospective multicenter analysis. Authors of 21 centers from the Penile Cancer Collaborative Coalition-Latin America (PeC-LA) were included. All centers performed the procedure following the same previously described standardized technique. Inclusion criteria included penile cancer patients with no palpable lymph nodes and intermediate/high-risk disease and those with non-fixed palpable lymph nodes less than 4 cm in diameter. Categorical variables are shown as percentages and frequencies whereas continuous variables as mean and range. Results: From 2006 to 2020, 210 VEIL procedures were performed in 105 patients. Mean age was 58 (45-68) years old. Mean operative time was 90 minutes (60-120). Mean lymph node yield was 10 nodes (6-16). Complication rate was 15.7%, including severe complications in 1.9% of procedures. Lymphatic and skin complications were noted in 8.6 and 4.8% of patients, respectively. Histopathological analysis revealed lymph node involvement in 26.7% of patients with non-palpable nodes. Inguinal recurrence was observed in 2.8% of patients. 10y- overall survival was 74.2% and 10-y cancer specific survival was 84.8%. CSS for pN0, pN1, pN2 and pN3 were 100%, 82.4%, 72.7% and 9.1%, respectively. Conclusion: VEIL seems to offer appropriate long term oncological control with minimal morbidity. In the absence of non-invasive stratification measures such as dynamic sentinel node biopsy, VEIL emerged as the alternative for the management of non-bulky lymph nodes in penile cancer.

Novel minimally invasive treatments for lower urinary tract symptoms: a systematic review and network meta-analysis

ABSTRACT Purpose: To review and compare the effectivity of novel minimally invasive treatments (MITs) to transurethral resection of the prostate (TURP) for the treatment of lower urinary tract symptoms (LUTS) in men. Methods: Medline, Embase, and Cochrane databases were searched from January 2010 to December 2022 for randomized controlled trials (RCTs) evaluating MITs, compared to TURP or sham, in men with LUTS. Studies were assessed by risk of bias tool, and evidence by GRADE. Functional outcomes by means of uroflowmetry and IPSS were the primary outcomes, safety and sexual function were secondary outcomes. As part of this review, a network meta-analysis (NMA) was conducted. MITs were ranked based on functional outcome improvement probability. Results: In total, 10 RCTs were included, evaluating aquablation, prostatic urethral lift, prostatic artery embolization (PAE), convective water vapor thermal treatment or temporary implantable nitinol device. All MITs showed a better safety profile compared to TURP. Functional outcome improvement following aquablation were comparable to TURP. In the NMA, aquablation was ranked highest, PAE followed with the second highest probability to improve functional outcomes. Other novel MITs resulted in worse functional outcomes compared to TURP. Level of evidence was low to very low. Conclusions: Five MITs for treatment of LUTS were identified. Aquablation is likely to result in functional outcomes most comparable to TURP. Second in ranking was PAE, a technique that does not require general or spinal anesthesia. MITs have a better safety profile compared to TURP. However, due to high study heterogeneity, results should be interpreted with caution.

Rotura aguda del tendón de Aquiles tratadas quirúrgicamente con Técnica de Mínimo Abordaje. Resultados clínicos y funcionales a un año de seguimiento / Acute rupture of the Achilles tendon surgically treated with the Minimal Approach Technique. Clinical and functional results at one year of follow-up

Se deben tener consideraciones especiales cuando se realizan reparaciones quirúrgicas del tendón de Aquiles. Su anatomía e irrigación particular plantean desafíos únicos para el manejo, y tener comprensión profunda de estas características es crucial para escoger el tratamiento adecuado y lograr resultados exitosos. El objetivo de este trabajo es analizar la eficiencia de la reparación quirúrgica de la rotura aguda del tendón de Aquiles con técnica de Dresden, entre el 2015 y el 2021. Se realizó un estudio de tipo analítico, observacional, longitudinal y prospectiva. El análisis del aspecto estadístico fue a través de estadística descriptiva y asociación de las variables. Se incluyeron 34 pacientes con un promedio de 42 años, la mayoría de sexo masculino. Al aplicar las escalas VISA-A se obtuvo un promedio de 12 puntos, 67,5 puntos a los 6 meses y 80,5 puntos a los 12 meses. En la encuesta SF-12 a los 6 meses se obtuvo un promedio de 68,5 puntos y 80 puntos a los 12 meses; un paciente presentó rechazo de la sutura y 6 afirmaron algún grado de edema residual aun al año de la cirugía. La reparación quirúrgica con técnica de Dresden mejora la funcionabilidad del tendón de malos resultados a regulares y buenos resultados al año de seguimiento. El 68% de la población estudiada afirmó que se encuentran satisfechos con la cirugía(AU)

Special considerations must be made when performing surgical repairs of the Achilles tendon. Its particular anatomy and blood supply pose unique management challenges, and a thorough understanding of these characteristics is crucial to choosing the right treatment and achieving successful results. The objective of this work is to analyze the efficiency of the surgical repair of the acute rupture of the Achilles tendon with the Dresden technique, between 2015 and 2021. An analytical, observational, longitudinal and prospective study was carried out. The analysis of the statistical aspect was through descriptive statistics and association of the variables. 34 patients with an average age of 42 years were included, most of them male. When applying the VISA-A scales, an average of 12 points was obtained, 67,5 points at 6 months and 80,5 points at 12 months. In the SF-12 survey at 6 months an average of 68,5 points and 80 points at 12 months were obtained; One patient presented rejection of the suture and 6 reported some degree of residual edema even one year after surgery. Surgical repair with the Dresden technique improves the functionality of the tendon from poor to regular results and good results after a year of follow-up. 68% of the population studied stated that they are satisfied with the surgery(AU)

Vacuum-assisted excision of breast lesions in surgical de-escalation: where are we? / Excisão assistida a vácuo de lesões mamárias no descalonamento cirúrgico: onde estamos?

Abstract Vacuum-assisted excision of breast lesions has come to be widely used in clinical practice. Increased acceptance and availability of the procedure, together with the use of larger needles, has allowed the removal of a greater amount of sample, substantially reducing the surgical upgrade rate and thus increasing the reliability of the results of the procedure. These characteristics result in the potential for surgical de-escalation in selected cases and gain strength in a scenario in which the aim is to reduce costs, as well as the rates of underestimation and overtreatment, without compromising the quality of patient care. The objective of this article is to review the technical parameters and current clinical indications for performing vacuum-assisted excision of breast lesions.

Resumo A excisão assistida a vácuo de lesões mamárias tem sido cada vez mais utilizada na prática clínica. A sua maior aceitação e disponibilidade, em associação ao uso de agulhas mais calibrosas, permitiu a retirada de quantidade maior de amostra, reduzindo substancialmente a taxa de subestimação diagnóstica e aumentando, assim, a confiabilidade final dos resultados do procedimento. Essas características resultam em potencial descalonamento cirúrgico, em casos selecionados, e ganham força em um cenário em que se visa a redução de custos, taxa de subestimação e tratamento excessivo, porém, sem comprometer a qualidade no cuidado com o paciente. O objetivo deste trabalho é revisar os parâmetros técnicos e as indicações clínicas atuais para realização de excisão assistida a vácuo em lesões mamárias.

Endoscopic Release of the Ulnar Nerve at the Elbow: Technique Description and Case Series / Liberação endoscópica do nervo ulnar no cotovelo: Descrição da técnica e série de casos

Abstract Objective The endoscopic release of the ulnar nerve reproduces a simple (in situ) procedure with smaller incisions, less soft tissue damage, and higher preservation of nerve vascularization. Endoscopy allows the clear visualization of the entire path of the nerve and surrounding noble structures. Moreover, it reveals any signs of compression and allows a safe release of 10cm distally or proximally to the medial epicondyle. Methods A retrospective survey revealed that 15 subjects (1 with a bilateral injury) underwent an ulnar nerve compression release at the elbow using the endoscopic technique with Agee (Micro-Aire Sugical Instruments, Charlottesville, VA, EUA) equipment from January 2016 to January 2020. Results Symptoms of ulnar nerve compression improved in all patients; on average, they resumed their work activities in 26.5 days. There was no recurrence or need for another procedure. In addition, there were no severe procedure-related complications, such as infection and nerve or vascular injury. One patient had transient paresthesia of the sensory branches to the forearm, with complete functional recovery in 8 weeks. Conclusion Our study shows that the endoscopic release of the ulnar nerve at the elbow with the Agee equipment is a safe, reliable technique with good outcomes.

Resumo Objetivo A liberação endoscópica do nervo ulnar permite reproduzir uma liberação simples (in situ), mas através de incisões menores e com menor lesão de partes moles e uma maior preservação da vascularização do nervo. A visualização clara através da endoscopia permite observar todo o trajeto do nervo e das estruturas nobres circundantes, mostrando os sinais de compressão, possibilitando realizar a liberação de forma segura em um trajeto de 10 cm nos sentidos distal e proximal ao epicôndilo medial. Método Foram encontrados, de forma retrospectiva, no período entre janeiro de 2016 e janeiro de 2020, 15 pacientes (sendo 1 com lesão bilateral) submetidos a liberação da compressão do nervo ulnar no cotovelo pela técnica endoscópica com equipamento de Agee (Micro-Aire Sugical Instruments, Charlottesville, VA, EUA). Resultados Todos os pacientes tiveram melhora dos sintomas de compressão do nervo ulnar e o período de retorno ao trabalho foi de em média 26,5 dias. Não houve recidivas e não houve a necessidade de outro procedimento. Também não houve complicações graves decorrentes do procedimento, como infecção, lesão nervosa ou vascular. Em um paciente, houve parestesia transitória dos ramos sensitivos para o antebraço, com retorno completo da função em 8 semanas. Conclusão Os resultados mostram que a liberação endoscópica do nervo ulnar no cotovelo comoequipamentodeAgeeéuma técnica segura, confiável e com bons resultados.

A study comparing dusting to basketing for renal stones ≤ 2 cm during flexible ureteroscopy

ABSTRACT Objectives To compare the dusting efficiency and safety with basketing for treating renal stones ≤ 2 cm during flexible ureteroscopy (fURS). Materials and methods This study included 218 patients with renal stones ≤ 2 cm treated with fURS. Among them, 106 patients underwent dusting, and 112 patients underwent fragmentation with basket extraction. All patients were followed up for 3 months postoperatively. The operating time, lasing time, stone-free rate (SFR) and complication rate were compared. Results The mean stone size in the dusting group was 1.3 cm, whereas 1.4 cm in the basketing group. The mean operative time was significantly lower in the dusting group than in the basketing group (43.1±11.7 minutes VS 60.5±13.4 minutes, P <0.05), but the lasing time was significantly longer for the dusting group than for the basketing group (17.7±3.9 minutes VS 14.1±3.6 minutes, P <0.05). SFR was significantly higher in the basketing group immediately after the operation and follow-up after 1 month (76.8% vs 55.7%, P= 0.001 and 88.4% vs 78.3%, P = 0.045). However, the SFR was similar for both groups (88.8% in the dusting group vs. 90.2% in the basketing group) after 3 months postoperatively. There was no statistical difference in the complication rates between the two groups. Conclusions Dusting has advantages in shortening the operation time and reducing the operation cost, but the lasing time was longer compared with the basketing. Although there is no difference in long-term effect, basketing is superior to dusting in terms of short-term SFR. Moreover, dusting should be avoided in some special cases and basketing a better choice. Both techniques are effective for the treatment of renal stones ≤ 2 cm and choice depends on patient demographic and stone characteristics.

Effect of flapless piezopuncture on maxillary canine distalization. A preliminary randomized controlled trial

Several methods have been described to shorten orthodontic treatments, but the main disadvantage is their invasiveness. Animal studies have shown that piezopuncture can accelerate the rate of tooth movement without causing collateral damage. Objective: To evaluate the clinical outcome, in terms of safety and efficacy, of a flapless piezopuncture on maxillary canine distalization. Methods: A split-mouth randomized clinical trial was carried out on five patients. Piezopuncture was performed on a random side of the maxillary arch to assess the rate of canine movement on the stimulated side, compared to the non-stimulated control side after 15 (T1), 30 (T2), and 60 (T3) days. Also, immediate side effects and changes in buccal bone thickness after one year were assessed. Results: Distalization on the intervention versus control side at T1 was 1.24±0.21mm versus 0.64±0.33mm (p=0.005); at T2 it was 2.00±0.28mm versus 1.36±0.49mm (p=0.046); and at T3 it was 4.28±0.66mm versus 3.65±0.88mm (p=0.102). No adverse effects related to the surgical procedure were observed or reported by patients. The thickness of the buccal bone plate showed no significant changes. Conclusions: Flapless piezopuncture accelerates the rate of tooth movement in orthodontic patients over the first 15 days and its effect declines over the next 45 days.

Tratamiento mínimamente invasivo del catéter doble J calcificado

Introducción: La calcificación del catéter doble J puede encontrarse en el 13 % de los colocados y aumenta proporcionalmente al tiempo que permanezca en contacto con la orina. Los investigadores coinciden en que el catéter doble J calcificado es una complicación compleja de resolver. Se realizó una revisión bibliográfica, de 2011 a 2021. Se utilizaron las bases de datos SciELO, EBSCO, Elsevier y PubMed, con los descriptores: litiasis, catéteres, procedimientos quirúrgicos mínimamente invasivos y complicaciones intraoperatorias y posoperatorias. Objetivo: Describir el papel de la cirugía mínimamente invasiva para el tratamiento del catéter doble J calcificado. Desarrollo: Los factores de riesgo relacionados a catéter doble J calcificados son clínico-terapéuticos y sociodemográficos, como la infección urinaria, antecedentes de litiasis, embarazo, enfermedad renal crónica, anomalías metabólicas o congénitas. Los de poliuretano presentan mayores tasas de calcificación. La litotricia extracorpórea por ondas de choque puede emplearse hasta en 70,7 % de los pacientes. Métodos multimodales como ureteroscopía, previa cistolitotricia transuretral, se han aplicado entre 6 % y 17,9 %, la nefrolitotomía percutánea y ureteroscopía, previa cistolitotricia o no, en el 7,7 % al 20 %. Las complicaciones más frecuentes se informan durante el posoperatorio (20 %): fiebre, dolor, vómitos, hematuria, pielonefritis, sepsis, urinoma, migración espontánea del nuevo catéter colocado y daño renal agudo, entre otras. Conclusiones: La cirugía mínimamente invasiva en la actualidad es el pilar fundamental, del tratamiento de los pacientes con catéter doble J calcificado.

Introduction: The calcification of the double J catheter can be found in 13% of those placed and increases proportionally to the time it remains in contact with urine. The researchers agree that the calcified double J catheter is a complex complication to resolve. A bibliographic review was carried out, from 2011 to 2021. The resources of the SciELO, EBSCO, Elsevier and PubMed databases were used in relation to the descriptors lithiasis, catheters, minimally invasive surgical procedures and intraoperative and postoperative complications. Objective: To describe the role of minimally invasive surgery for the treatment of calcified double J catheter. Development: The risk factors related to calcified double J are clinical-therapeutic and sociodemographic, such as urinary tract infection, history of lithiasis, pregnancy, chronic kidney disease, metabolic or congenital anomalies. Those made of polyurethane have higher rates of calcification. Extracorporeal shock wave lithotripsy can be used in up to 70.7% of patients. Multimodal methods such as ureteroscopy prior to transurethral cystolithotripsy have been applied between 6-17.9%, percutaneous nephrolithotomy and ureteroscopy prior cystolithotripsy or not in 7.7%-20%. The most frequent complications are reported during the postoperative period (20%): fever, pain, vomiting, hematuria, pyelonephritis, sepsis, urinoma, spontaneous migration of the newly placed catheter, and acute kidney injury, among others. Conclusions: Minimally invasive surgery is currently the cornerstone of treatment for patients with calcified double-J catheters.

Cardiac Surgery Training in Brazil - What Are We Discussing in Our Journal?

ABSTRACT Introduction: Cardiovascular surgery has undergone numerous changes over the last decades. Transcatheter technologies, endovascular procedures, hybrids, and minimally invasive surgery have undoubtedly advanced as a therapy for patients. Thus, the discussion about the training of residents in the face of new technologies in the specialty is in check. In this article, it is proposed a review to discuss the challenges in this scenario as well as the current training in cardiovascular surgery in Brazil. Methods: A comprehensive review was performed in the Brazilian Journal of Cardiovascular Surgery. All editions from 1986 to 2022 were included. The research was carried out using the search engine on the journal's website (https://www.bjcvs.org) and an individual analysis of the titles and abstracts of each article published. Results: All the studies are summarized in the appropriate table with a discussion along this review. Conclusion: Most articles that discuss training in cardiovascular surgery in the national context are editorials and expert points of view with no observational studies evaluating the residency programs.

Early postoperative outcomes of the esophagectomy minimally invasive in esophageal cancer / Resultados pós-operatórios precoces da esofagectomia minimamente invasiva no câncer do esôfago

ABSTRACT BACKGROUND: The incidence of esophageal cancer is high in some regions and the surgical treatment requires reference centers, with high volume, to make surgery feasible. AIMS: To evaluate patients undergoing minimally invasive esophagectomy by thoracoscopy in prone position for the treatment of esophageal cancer and to recognize the experience acquired over time in our service after the introduction of this technique. METHODS: From January 2012 to August 2021, all patients who underwent the minimally invasive esophagectomy for esophageal cancer were retrospectively analyzed. In order to assess the factors associated with the predefined outcomes as fistula, pneumonia, and intrahospital death, we performed univariate and multivariate logistic regression analyses, accounting for age as an important factor. RESULTS: Sixty-six patients were studied, with mean age of 59.5 years. The main histological type was squamous cell carcinoma (81.8%). The incidence of postoperative pneumonia and fistula was 38% and 33.3%, respectively. Eight patients died during this period. The patient's age, T and N stages, the year the procedure was performed, and postoperative pneumonia development were factors that influenced postoperative death. There was a 24% reduction in the chance of mortality each year, associated with the learning curve of our service. CONCLUSIONS: The present study presented the importance of the team's experience and the concentration of the treatment of patients with esophageal cancer in reference centers, allowing to significantly improve the postoperative outcomes.

RESUMO RACIONAL: A incidência do câncer de esôfago é elevada em algumas regiões e o tratamento cirúrgico requer centros de referência com alto volume para viabilizar a cirurgia. OBJETIVOS: Avaliar os pacientes submetidos à esofagectomia minimamente invasiva, por toracoscopia na posição prona, para o tratamento do câncer de esôfago e conhecer a experiência adquirida ao longo do tempo em nosso serviço após a introdução desta técnica. MÉTODOS: De janeiro de 2012 a agosto de 2021, foram analisados retrospectivamente todos os pacientes submetidos à esofagectomia minimamente invasiva para câncer de esôfago. Para avaliar os fatores associados aos desfechos predefinidos de fístula, pneumonia e óbito intra-hospitalar, realizamos análises de regressão logística univariada e multivariada considerando a idade como fator importante. RESULTADOS: Foram estudados 66 pacientes, com idade média de 59,5 anos. O tipo histológico mais frequente foi carcinoma espinocelular (81,8%). A incidência de pneumonia pós-operatória e fístula foi de 38% e 33,3%, respectivamente. Oito pacientes morreram durante este período. A idade do paciente, os estágios T e N, o ano da realização do procedimento e o desenvolvimento de pneumonia pós-operatória foram fatores que influenciaram o óbito. Houve uma redução de 24% na chance de mortalidade, ano a ano, associada à curva de aprendizado do nosso serviço. CONCLUSÕES: O presente estudo mostrou a importância da experiência da equipe e da concentração do tratamento de pacientes com câncer de esôfago em centros de referência, possibilitando melhorar significativamente o resultado pós-operatório.

Thoracic-lumbar arthrodesis via extreme lateral approach: a retrospective study / Artrodese com abordagem extremo lateral da coluna toracolombar: um estudo retrospectivo / Artrodesis por abordaje lateral extremo de la columna torácico-lumbar: un estudio retrospectivo

ABSTRACT: Objective: To evaluate the epidemiological, clinical, and radiological data of patients treated with XLIF, including the impact on quality of life, pain parameters, and improvement of lumbar lordosis. Methods: Retrospective longitudinal study, in which medical records of patients who underwent XLIF between 2017 and 2020 at Hospital do Trabalhador/UFPR were reviewed. Demographic characteristics and radiological aspects, such as the Cobb angle, were recorded. Clinical characteristics using parameters such as pain by VAS and the disability index by ODI were evaluated before surgery and 12 months after. Results: Female patients predominated (66.7%), with a mean age of 59.1 years (35-82 years). The length of stay, in the median, was three days, and the time to return to daily activities was three months. Only four patients (8.9%) had complications. The questionnaire analysis showed a significant difference between all scales' pre and postoperative scores. The ODI showed an average reduction of 39.2%, and the median score of VAS in the postoperative period was half the preoperative period (reduction of 50%; p <0.001). The lordosis angle increased by 26.3% in the postoperative period (p <0.001). Conclusion: XLIF presents low complication rates, improves lumbar lordosis, and allows recovery from daily activities in a short period, in addition to performing a statistically significant improvement in quality of life and pain according to the VAS and ODI scales, being, therefore, a viable and effective treatment technique. Level of Evidence II; Retrospective Study.

RESUMO: Objetivo: Avaliar o perfil epidemiológico dos pacientes tratados com a XLIF, dados clínicos e radiológicos, incluindo o impacto na qualidade de vida, parâmetros de dor e melhora da lordose lombar. Métodos: Estudo longitudinal retrospectivo, em que foram revisados prontuários de pacientes submetidos à XLIF entre 2017 e 2020 no Hospital do Trabalhador/UFPR. Foram registrados os aspectos demográficos, características clínicas através de parâmetros como dor pela EVA e o índice de incapacidade pelo ODI, aspectos radiológicos incluindo o ângulo de Cobb antes da cirurgia e 12 meses após. Resultados: Predominou o sexo feminino (66,7%), com média de idade de 59,1 anos (35-82 anos). O tempo de internação, em mediana, foi de 3 dias e o tempo de retorno às atividades diárias foi de 3 meses. Apenas quatro pacientes (8,9%) apresentaram complicações. A análise através de questionários demonstrou diferença significativa entre as pontuações pré e pós-operatórias em todas as escalas. No ODI, houve redução média na pontuação de 39,2% e na EVA, a pontuação mediana no pós operatório foi a metade da pontuação no pré-operatório (redução de 50%; p<0,001). O ângulo da lordose teve aumento de 26,3% no pós-operatório em relação ao valor basal (p<0,001). Conclusão: A XLIF apresenta baixos índices de complicação, melhora da lordose lombar e permite a recuperação às atividades diárias em curto período de tempo, além de desempenhar melhora estatisticamente significativa na qualidade de vida e no quadro álgico segundo as escalas EVA e ODI, sendo, portanto, uma técnica viável e eficaz de tratamento. Nível de Evidência II; Estudo Retrospectivo.

RESUMEN: Objetivo: Evaluar los datos epidemiológicos, clínicos y radiológicos de los pacientes tratados con XLIF, incluyendo el impacto en la calidad de vida, los parámetros de dolor y la mejoría de la lordosis lumbar. Métodos: Estudio longitudinal retrospectivo, revisando las historias clínicas de los pacientes que se sometieron a XLIF entre 2017 y 2020 en el Hospital do Trabalhador/UFPR. Se registraron características demográficas y radiológicas, como el ángulo de Cobb. Se evaluaron las características clínicas mediante parámetros como el dolor por EVA y el índice de discapacidad por ODI antes de la cirugía y 12 meses después. Resultados: Predominó el sexo femenino (66,7%), con una edad media de 59,1 años (35-82 años). La duración de la estancia, en promedio, fue de 3 días y el tiempo para volver a las actividades diarias fue de 3 meses. Solo cuatro pacientes (8,9%) presentaron complicaciones. Los cuestionarios mostraron una diferencia significativa entre las puntuaciones pre y postoperatorias. El ODI mostró una reducción media del 39,2% y la puntuación media de la EVA en el postoperatorio fue la mitad de la puntuación en el preoperatorio (p <0,001). El ángulo de lordosis aumentó un 26,3% en el postoperatorio (p <0,001). Conclusiones: XLIF presenta bajas tasas de complicaciones, mejora la lordosis lumbar y permite la recuperación de las actividades diarias en un corto período de tiempo, con una mejora estadísticamente significativa en la calidad de vida y el dolor según EVA y ODI, siendo una técnica de tratamiento viable y eficaz. Nivel de evidencia IV; Estudio Retrospectivo.

Distal femur hemiepiphysiodesis in knee recurvatum: a new surgical technique / Hemiepifisiodese do fêmur distal no joelho recurvato: nova proposta cirúrgica

ABSTRACT Introduction: The genu recurvatum is characterized by a hyperextension deformity of the knee in the sagittal plane. Among its causes are conditions such as arthrogryposis, cerebral palsy, poliomyelitis, sequelae of tibial tuberosity fracture and some syndromes with generalized joint hypermobility. Treatment of this deformity can be challenging and, to date, aggressive methods such as femur or tibial osteotomies are the most used for its correction. Objective: This study aimed to describe a new surgical technique for correcting genu recurvatum. Methods: This is a prospective clinical study of children who underwent posterior hemiepiphysiodesis of the distal femur with transphyseal screws. Results: The approach proved to be safe and useful for genu recurvatum deformities, with femoral or articular apex. Conclusion: This approach shows great potential for correcting genu recurvatum in the developing skeleton, being an excellent alternative to the more aggressive methods currently used to treat this deformity. Level of evidence IV, Case Series.

RESUMO Introdução: O joelho recurvato é caracterizado por uma deformidade em hiperextensão do joelho no plano sagital. Entre suas causas, estão condições como artrogripose, paralisia cerebral, poliomielite, sequelas de fratura da tuberosidade da tíbia e algumas síndromes com hipermobilidade articular generalizada. O tratamento dessa deformidade pode ser desafiador e, até o momento, métodos agressivos como osteotomias do fêmur ou da tíbia são os mais utilizados para sua correção. Objetivo: Descrever uma nova técnica cirúrgica de correção do genu recurvatum. Métodos: Estudo clínico prospectivo de crianças submetidas à hemiepifisiodese posterior do fêmur distal com parafusos transfisários. Resultados: A técnica se mostrou segura e útil para as deformidades em recurvato do joelho, com ápice femoral ou articular. Conclusão: Essa técnica apresenta grande potencial de correção do joelho recurvato no esqueleto imaturo, sendo uma excelente alternativa aos métodos mais agressivos atualmente utilizados para o tratamento dessa deformidade. Nível de Evidência IV, Série de Casos

Can the percutaneous chevron and akin (peca) technique correct the pronation of the first metatarsal in hallux valgus? / A técnica percutânea de chevron e akin (peca) pode corrigir a pronação do primeiro metatarso em halux valgo?

ABSTRACT Objective Pronation of the first metatarsal in hallux valgus has recently been discussed among foot and ankle surgeons. This study aimed to evaluate the potential radiographic correction of moderate and severe hallux valgus using the percutaneous Chevron and Akin (PECA) technique. Methods We evaluated 45 feet in 38 patients (mean age 65.3 years old [36 - 83]; 4 men; 34 women; 7 bilateral) who underwent surgical correction using the PECA technique. The radiographic images evaluated were anteroposterior radiographs obtained pre- and postoperatively at least 6 months after surgery, including the metatarsophalangeal angle, the intermetatarsal angle, pronation of the first metatarsal, displacement of the distal fragment, medial sesamoid position and bone union. Results All parameters evaluated showed significant postoperative improvement, including correction of pronation of the first metatarsal (p < .05) and position of the sesamoid (p < .05). There was a union of osteotomies in all feet. No complications were observed, such as screw loosening or necrosis of the first metatarsal head. Conclusion The PECA technique can correct pronation of the first metatarsal in moderate and severe hallux valgus, and other deformity-associated parameters. Level of Evidence IV; Case Series.

RESUMO Objetivo A pronação do primeiro metatarso no hálux valgo tem sido um tema de discussão recente entre os cirurgiões de pé e tornozelo. O objetivo deste estudo foi avaliar o potencial de correção radiográfica do hálux valgo moderado e grave utilizando a técnica percutânea de Chevron e Akin (PECA). Métodos Avaliamos 45 pés em 38 pacientes (média de idade 65,3 anos [36 - 83]; 4 homens; 34 mulheres; 7 bilaterais) submetidos à correção cirúrgica pela técnica PECA. As imagens radiográficas avaliadas foram radiografias anteroposteriores obtidas no pré e pós-operatório com no mínimo 6 meses após a cirurgia, incluindo ângulo metatarsofalângico, ângulo intermetatarsal, pronação do primeiro metatarso, deslocamento do fragmento distal, posição do sesamoide medial e união óssea. Resultados Todos os parâmetros avaliados apresentaram melhora significativa no pós-operatório, incluindo correção da pronação do primeiro metatarso (p < 0,05) e posição do sesamoide (p < 0,05). Houve união de osteotomias em todos os pés. Não foram observadas complicações, como soltura do parafuso ou necrose da cabeça do primeiro metatarso. Conclusão A técnica PECA pode corrigir a pronação do primeiro metatarso no hálux valgo moderado e grave, bem como outros parâmetros associados à deformidade. Nível de Evidência IV; Série De Casos.

Percutaneous pedicle screw fixation combined expandable tubular retractor in the treatment of spinal metastases / 北京大学学报(医学版)

OBJECTIVE@#To investigate the effectiveness of percutaneous pedicle screw fixation combined expandable tubular retractor in the treatment of patients with spinal metastases.@*METHODS@#In the study, 12 patients of spinal metastases treated with percutaneous pedicle screw fixation combined expandable tubular retractor in our hospital were retrospectively reviewed between June 2017 and October 2019. Among the 12 patients, 9 were males and 3 were females; the median age was 62.5 years [(65.1±2.9) years]. The decompression segment of 7 patients was located at the lower thoracic spine (including 1 patient with incomplete paraplegia) and the decompression segment of 5 patients was located at the lumbar spine; Tomita score was 6.0±0.6. Perioperative data of the patients were reviewed. Visual analog scale (VAS score), Karnofsky score, and Eastern Cooperative Oncology Group (ECOG) score were compared before and after surgery. The patient's survival, adjuvant treatment, and internal fixation failure were observed in the follow-up period.@*RESULTS@#All the 12 patients had a successful operation with percuta-neous pedicle screw fixation combined expandable tubular retractor. The average operative time, blood loss, and blood transfused of the patients were (247.0±14.6) min, (804.2±222.3) mL and (500.0±100.0) mL, respectively. The average amount of drainage was (240.8±79.3) mL. Drainage tubes were pulled out early postoperative [(3.2±0.3) d], allowing early mobilization. The patients discharged (7.8±0.8) d postoperative. All the patients were followed up for 6-30 months, and the average overall survival time was (13.6±2.4) months. During the follow-up period, 2 patients experienced screw displacement, the internal fixation was stable after conservative treatment and no revision surgery was performed. The VAS of the patients was 7.1±0.2 before surgery, which decreased to 2.3±0.1 and 2.8±0.4 at 3 and 6 months after surgery (P < 0.05). The Karnofsky score of the patients was 59.2±1.9 before surgery, which increased to 75.0±1.9 and 74.2±3.1 at 3 and 6 months after surgery (P < 0.05). The ECOG of the patients was 2.3±0.2 before surgery, which decreased to 1.7±0.1 and 1.7±0.2 at 3 and 6 months after surgery (P < 0.05).@*CONCLUSION@#For selected patients with spinal metastases, minimally invasive surgical treatment of spinal metastases (percutaneous pedicle screw internal fixation combined with expandable tubular retractor) can effectively relieve the clinical symptoms and improve the quality of life, with satisfactory clinical outcome.