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.

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.

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.

Manejo clínico quirúrgico de la necrosis pancreática infectada en adultos: experiencia en un hospital especializado, Paraguay / Surgical clinical management of necrotizing pancreatitis in adults: experience in a specialized hospital, Paraguay

Introducción: la necrosis pancreática se presenta entre 10 y 20 % de los pacientes con pancreatitis aguda, tiene una mortalidad de 10 a 25 % y si se agrega infección a la necrosis entre 40 y 70 %. Objetivo: describir el manejo clínico quirúrgico de la necrosis pancreática infectada en el Servicio de Cirugía General del Hospital Nacional entre el periodo 2021-2022. Metodología: estudio observacional descriptivo de corte temporal transversal. En pacientes internados en el Servicio de Cirugía General del Hospital Nacional por pancreatitis aguda grave con necrosis pancreática infectada. Resultados: se analizaron un total de 30 pacientes. La media de edad fue de 39 años. Predominó en nuestra población pacientes de sexo masculino en el 56.67 %. En cuanto a las comorbilidades asociadas un 33.3 % los pacientes presentaron principalmente Diabetes mellitus tipo 2 e Hipertensión arterial; en menor medida Obesidad en un 23.3 %. De la población en estudio 76.6 % recibieron tratamiento quirúrgico y 23.33% tratamiento médico principalmente antibiótico terapia. De los pacientes sometidos a tratamiento quirúrgico 9 fueron a necrosectomia abierta, 7 a drenaje percutáneo, y en menor medida drenaje biliar y endoscópico. En cuanto a la mortalidad por necrosis pancreática infectada encontramos un 10 % de mortalidad. Discusión: la mayor parte de los pacientes con pancreatitis aguda grave sufren de necrosis pancreática; la necrosis pancreática infectada se asocia con mayor riesgo de mortalidad y en su mayoría requieren tratamientos invasivos. Conclusión: el manejo mínimamente invasivo en el tratamiento inicial de la necrosis pancreática infectada podría resolver la mayoría de los casos sin necesidad de realizar necrosectomia; reservando esta última solo a los que fracasan en el tratamiento inicial.

Introduction: pancreatic necrosis occurs between 10 and 20 % of patients with pancreatitis, has a mortality of 10 to 25 % and if infection is added to the necrosis between 40 and 70 %. Objective: to describe the surgical and clinical management of infected necrotizing pancreatitis in patients admitted to the General Surgery Service of the Hospital Nacional between the period 2021-2022. Methodology: this was an observational, descriptive and cross-section study with a temporal cut. We included patients admitted to the general surgery service of the National Hospital with severe acute pancreatitis with infected necrotizing pancreatitis. Results: a total of 30 patients were included. The mean age was 39 years. Male patients prevailed in our population in 56.67 %. Regarding the associated comorbidities, 33.3 % of the patients presented mainly type 2 diabetes mellitus and arterial hypertension; to a lesser extent Obesity in 23.3 %. In the study population, 76.6 % received surgical treatment and 23.33 % medical treatment, mainly antibiotic therapy. Of the patients who underwent surgical treatment, 9 were open necrosectomy, 7 had percutaneous drainage, and to a lesser extent biliary and endoscopic drainage. Regarding mortality due to infected necrotizing pancreatitis, we found a 10% mortality. Discussion: most of the patients with severe acute pancreatitis suffer from necrotizing pancreatitis; infected necrotizing pancreatitis is associated with increased risk of mortality and most require invasive treatment. Conclusion: minimally invasive management in the initial treatment of infected necrotizing pancreatitis, which could resolve most cases without the need to perform necrosectomy; the latter should be reserved for those who fail the initial treatment.

Clinical study of rhegmatogenous retinal detachment treatment with minimally invasive foldable capsular buckle scleral buckling / 国际眼科杂志(Guoji Yanke Zazhi)

AIM:To investigate the clinical efficacy of minimally invasive foldable capsular buckle(FCB)scleral buckling in treating rhegmatogenous retinal detachment(RRD).METHOD: This retrospective study enrolled 11 patients(11 eyes)with RRD treated with minimally invasive FCB scleral buckling at the Hainan Traditional Chinese Medicine Hospital from May to July 2023. The surgeries were performed without subconjunctival anesthesia, extraocular muscle pulling, intraocular positioning, retinal cryotherapy or drainage of subretinal fluid, or FCB suture fixation. Furthermore, the best corrected visual acuity(BCVA), intraocular pressure and complications were observed.RESULTS: Minimally invasive FCB scleral buckling was performed on 11 eyes, with successful retinal reattachment in 10 eyes(91%), and the remaining 1 eye(9%)had postoperative retinal re-detachment and underwent vitrectomy with silicone oil filling for multiple retinal tears. One-time successful surgery was in 4 eyes(40%), gas injection in vitreous body after the surgery was performed in 1 eye(10%), FCB position adjustment after the surgery was performed in 3 eyes(30%), gas injection in vitreous body and FCB position adjustment after the surgery were performed in 2 eyes(20%); and FCB was removed 4-12 wk after the surgery in 5 eyes(50%), without retinal redetachment. The average BCVA(LogMAR)of the 10 eyes improved from 1.30±1.10 before surgery to 0.37±0.39 at 4 wk after surgery(P<0.01); the average preoperative intraocular pressure was 11.51±3.37 mmHg and 13.72±2.57 mmHg at 4wk after surgery(P>0.05). No serious complications occurred.CONCLUSION:Minimally invasive FCB scleral buckling effectively treats RRD with minimal injury, simple operation, time-saving, and fewer complications.

Clinical application of lithium disilicate glass ceramic cantilever resin-bonded fixed partial denture in the restoration of single anterior tooth loss / 口腔疾病防治

Objective@#To investigate the clinical effect of lithium disilicate glass ceramic cantilever resin-bonded fixed partial dentures (CRBFPDs) on single anterior tooth loss to provide a reference for the selection of restoration methods for single anterior tooth loss.@*Methods@#This study was reviewed and approved by the Ethics Committee, and informed consent was obtained from the patients. Forty-two patients with less than two anterior teeth with monomaxillary loss were included in this study. After 6 months, 1 year, 2 years, and 3 years, the aesthetic and functional effects of the restorations and the periodontal health status were evaluated, and the visual analog scale (VAS) was used to assess patient satisfaction.@*Results@#During the observation period, the connector fractured in one case within 3 months. One case had debonded within 2 years. The aesthetic restoration effect of all lithium disilicate glass ceramic CRBFPDs was categorized as Class A. The periodontal health was good, there was no clinical absorption in the soft and hard tissues of the abutment or subbridge, periodontal status according to the evaluation indices was classified as class A, and the total satisfaction rate of the patient was 100%.@*Conclusion@#For single anterior tooth loss patients, lithium disilicate glass ceramic cantilever resin-bonded fixed partial denture can achieve the restoration effect of less invasion, better adhesion, aesthetics, comfort and good biocompatibility. With high patient satisfaction, it can be considered an ideal restoration method for replacing a single anterior tooth.

Two-year follow-up of the outcomes of endoscope-assisted minimally invasive nonsurgical periodontal therapy for deep intrabony defects / 口腔疾病防治

Objective@#To explore the clinical efficacy and imaging changes of minimally invasive nonsurgical periodontal therapy (MINST) assisted by endoscopy for deep intrabony defects and to compare its effectiveness with that of traditional scaling and root planning (SRP) to therefore provide a reference for clinical periodontal treatment.@*Methods@#Patients with deep intrabony defects ≥ 4 mm in size were selected and divided into two groups: the MINST (MINST, 20 cases, 81 sites) group and the classic scaling and root planing (SRP, 20 cases, 80 sites) group. Before treatment and 12 and 24 months after treatment, probing depth (PD) and clinical attachment loss (CAL) were examined. Moreover, changes in the depth and angle of the intrabony defects were analyzed. Follow-up examination and maintenance treatment should be conducted every 3 months for 12 months after the initial treatment and every 6 months thereafter until 24 months.@*Results@#The PD and CAL of patients in both groups continued to decrease (P<0.001), and imaging examinations revealed a decrease in defect depth and an increase in intrabony defect angle (P<0.001). The changes in the first 12 months were significantly greater than those in the last 12 months in both groups (P<0.001). The decreases in PD, CAL, and depth of intrabony defects and increase in angle in the MINST group were significantly greater than those in the SRP group (P<0.001). At 12 and 24 months after treatment, the PD and CAL in the MINST group were lower than those in the SRP group (P<0.001). The defect height of the MINST group decreased more than that of the SRP group (P<0.001), and the defect angle of the MINST group increased more than that of the SRP group (P<0.001).@*Conclusion@#Minimally invasive nonsurgical periodontal therapy can significantly promote the healing of deep intrabony defects and the regeneration of alveolar bone. Imaging reflects that alveolar bone healing is rapid at first and then slows. Compared with traditional SRP, endoscopically assisted MINST can yield better clinical indicators and imaging changes in intrabony defects.

Learning Curve for Using Endoscopic Saphenous Vein Harvesting in Coronary Artery Bypass Grafting / 中山大学学报(医学科学版)

ObjectiveTo investigate the application of endoscopy in obtaining the great saphenous vein （GSV） during coronary artery bypass grafting （CABG） and explore the learning curve， with a particular focus on common challenges encountered during the learning process and their impact on early clinical outcomes. MethodsA retrospective analysis was conducted on clinical data from 83 patients who underwent off-pump CABG with endoscopic GSV harvesting at the First Affiliated Hospital of Zhengzhou University from July 2013 to April 2014. Patients were categorized into four groups based on the chronological order of their hospitalization： Group A （novice group， n=20）， Group B （proficient group， n=20）， Group C （progressive group， n=20）， and Group D （mature group， n=23）. Differences in perioperative and midterm follow-up outcomes among the groups were analyzed to determine the learning curve period. ResultsThe study population had a mean age of （60.22±8.06） years and a mean body weight of （69.77±11.66） kg. Comorbidities included hypertension （24 cases）， diabetes （26 cases）， and subacute cerebral infarction （14 cases）. The novice group exhibited significantly shorter GSV length-to-harvest time ratio relative to the other three groups （P<0.001） and a significantly higher incidence of main vein damage （P=0.006）. However， there was no statistically significant difference in graft patency at the 1-year follow-up. ConclusionThorough and reliable technical training in endoscopic GSV harvesting is essential to minimize vascular injury caused by novice operators. Approximately 20 cases of hands-on experience and a careful self-analysis of procedural challenges are likely required to achieve proficiency in GSV harvesting.

Comparison of the Recent Efficacy of Robot-assisted and Thoracic Laparoscopic Minimally Invasive Mckeown Radical Resection of Esophageal Cancer based on Propensity Score Matching / 中山大学学报(医学科学版)

ObjectiveTo explore the safety and efficacy of robot-assisted minimally invasive esophagectomy （robot-assisted minimally invasive esophagectomy， RAMIE） and thoracic laparoscopy combined with minimally invasive esophageal resection （minimal invasive esophagectomy， MIE）. MethodsThe data of 188 patients treated with Da Vinci robot assisted minimally invasive esophageal resection （RAMIE） from April 2021 to December 2022 were analyzed. In the RAMIE group， 69 patients， 49 males and 20 female， age （67.2 ± 7.2）； 119 in the MIME group， respectively， 89 males and 30 female， age （69.1 ± 7.0）. At 1 ∶ 1， including 58 patients in the RAMIE group and 58 patients in the MIE group. The t-test， Wilcoxon rank-sum test， χ2 test， and so on. ResultsAfter PSM treatment， the clinical data between the two groups. There was no significant difference in operation time， postoperative tube days， and total number of lymph node dissection between the RAMIE and MIE groups （P <0.05）； the RAMIE group was better in terms of intraoperative bleeding and the MIE group， statistically significant （P <0.05）； the MIE group was better in drainage flow and lymph node dissection for three days （P <0.05）. In terms of postoperative complications， there was no statistical difference between RAMIE and MIE groups （P>0.05）. ConclusionThe recent efficacy of robot-assisted minimally invasive esophagectomy is comparable to that of thoracic laparoscopy and minimally invasive Mckeown esophagectomy； robotic-assisted minimally invasive esophagectomy can reduce intraoperative bleeding and have more advantages in left recurrent laryngeal nerve lymph node dissection.

Research report of living donor kidney harvesting in Bama miniature pigs with six gene modified / 器官移植

Objective To summarize the experience and practical value of living donor kidney harvesting in Bama miniature pigs with six gene modified. Methods The left kidney of Bama miniature pigs with six gene modified was obtained by living donor kidney harvesting technique. First, the ureter was occluded, and then the inferior vena cava and abdominal aorta were freed. During the harvesting process, the ureter, renal vein and renal artery were exposed and freed in sequence. The vascular forceps were used at the abdominal aorta and inferior vena cava, and the renal artery and vein were immediately perfused with 4℃ renal preservation solution, and stored in ice normal saline for subsequent transplantation. Simultaneously, the donor abdominal aorta and inferior vena cava gap were sutured. The operation time, blood loss, warm and cold ischemia time, postoperative complications and the survival of donors and recipients were recorded. Results The left kidney of the genetically modified pig was successfully harvested. Intraoperative bleeding was 5 mL, warm ischemia time was 45 s, and cold ischemia time was 2.5 h. Neither donor nor recipient pig received blood transfusion, and urinary function of the kidney transplanted into the recipient was recovered. The donor survived for more than 8 months after the left kidney was resected. Conclusions Living donor kidney harvesting is safe and reliable in genetically modified pigs. Branch blood vessels could be processed during kidney harvesting, which shortens the process of kidney repair and the time of cold ischemia. Living donor kidney harvesting contributes to subsequent survival of donors and other scientific researches.

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.

Comparative study of orthopaedic robot-assisted minimally invasive surgery and open surgery for limb osteoid osteoma / 中国修复重建外科杂志

OBJECTIVE@#To compare the accuracy and effectiveness of orthopaedic robot-assisted minimally invasive surgery versus open surgery for limb osteoid osteoma.@*METHODS@#A clinical data of 36 patients with limb osteoid osteomas admitted between June 2016 and June 2023 was retrospectively analyzed. Among them, 16 patients underwent orthopaedic robot-assisted minimally invasive surgery (robot-assisted surgery group), and 20 patients underwent tumor resection after lotcated by C-arm X-ray fluoroscopy (open surgery group). There was no significant difference between the two groups in the gender, age, lesion site, tumor nidus diameter, and preoperative pain visual analogue scale (VAS) scores ( P>0.05). The operation time, lesion resection time, intraoperative blood loss, intraoperative fluoroscopy frequency, lesion resection accuracy, and postoperative analgesic use frequency were recorded and compared between the two groups. The VAS scores for pain severity were compared preoperatively and at 3 days and 3 months postoperatively.@*RESULTS@#Compared with the open surgery group, the robot-assisted surgery group had a longer operation time, less intraoperative blood loss, less fluoroscopy frequency, less postoperative analgesic use frequency, and higher lesion resection accuracy ( P<0.05). There was no significant difference in lesion resection time ( P>0.05). All patients were followed up after surgery, with a follow-up period of 3-24 months (median, 12 months) in the two groups. No postoperative complication such as wound infection or fracture occurred in either group during follow-up. No tumor recurrence was observed during follow-up. The VAS scores significantly improved in both groups at 3 days and 3 months after surgery when compared with preoperative value ( P<0.05). The VAS score at 3 days after surgery was significantly lower in robot-assisted surgery group than that in open surgery group ( P<0.05). However, there was no significant difference in VAS scores at 3 months between the two groups ( P>0.05).@*CONCLUSION@#Compared with open surgery, robot-assisted resection of limb osteoid osteomas has longer operation time, but the accuracy of lesion resection improve, intraoperative blood loss reduce, and early postoperative pain is lighter. It has the advantages of precision and minimally invasive surgery.

Single Kocher-Langenbeck approach combined with anterograde channel screw technique in treatment of acetabular transverse and posterior wall fractures / 中国修复重建外科杂志

OBJECTIVE@#To assess the effectiveness of the single Kocher-Langenbeck approach combined with anterograde channel screw technique for the treatment of acetabular transverse and posterior wall fractures.@*METHODS@#Between March 2020 and October 2022, 17 cases of acetabular transverse and posterior wall fractures were treated with the single Kocher-Langenbeck approach combined with anterograde channel screw technique. There were 11 males and 6 females, with an average age of 53.6 years (range, 42-64 years). Causes of injury included traffic accident in 12 cases, and falling from height in 5 cases. The time from injury to operation ranged from 4 to 16 days with an average of 8.8 days. The operation time, intraoperative blood loss, and fluoroscopy frequency were recorded; X-ray films were reviewed regularly after operation to observe the fracture healing, and postoperative complications were recorded. At last follow-up, Matta score was used to evaluate the reduction of fracture, Harris score and modified Merle D'Aubigné-Postel scores system were used to evaluate the hip joint function.@*RESULTS@#The operation time was 150-230 minutes (mean, 185.9 minutes), the intraoperative blood loss was 385-520 mL (mean, 446.2 mL), and the fluoroscopy frequency was 18-34 times (mean, 27.5 times). Postoperative fat liquefaction occurred in 1 case and the other incisions healed by first intention; 3 cases had limb numbness after operation, and the symptoms disappeared after active symptomatic treatment; no urogenital system and intestinal injury occurred. All patients were followed up 12-28 months (mean, 19.9 months). Bone union was achieved in all cases with an average healing time of 10.8 weeks (range, 8-14 weeks). There was no complication such as loosening and breakage of internal fixators. At last follow-up, according to Matta score, 12 cases achieved anatomic reduction, 3 satisfactory reduction, and 2 fair reduction, the satisfactory rate was 88.2%; according to Harris hip function score, 12 cases were excellent, 3 good, and 2 fair, the excellent and good rate was 88.2%; according to the modified Merle D'Aubign Aubigné-Postel scoring system, the results were excellent in 11 cases, good in 3 cases, and fair in 3 cases, with an excellent and good rate of 82.4%.@*CONCLUSION@#The single Kocher-Langenbeck approach combined with anterograde channel screw technique is a minimally invasive method for the treatment of acetabular transverse and posterior wall fractures with less complications, simple operation, and satisfactory effectiveness.

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.

"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.

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.

La escisión total del mesorrecto transanal en el tratamiento del cáncer del recto como nueva técnica en Cuba / Total Excision of the Transanal Mesorectum as a New Technique for Treating Rectal Cancer in Cuba

Introducción: Las indicaciones de la Microcirugía Transanal Endoscópica han evolucionado desde la cirugía de tumoraciones rectales hasta otras enfermedades pélvicas. La asociación de esta y la escisión total del mesorrecto transanal ofrece una serie de ventajas. Objetivo: Determinar las indicaciones, describir la técnica quirúrgica y mostrar los resultados a largo plazo obtenidos en la realización de la escisión total del mesorrecto transanal en el tratamiento del cáncer del recto medio y bajo. Métodos: Se realizó un estudio observacional descriptivo y prospectivo de los pacientes con cáncer del recto medio y bajo sometidos a esta técnica quirúrgica en el período comprendido entre febrero de 2017 y febrero de 2022 en el Centro Nacional de Cirugía de Mínimo Acceso. Resultados: Se operaron 13 pacientes, 9 con cáncer del recto bajo y 4 con cáncer del recto medio y un promedio de edad de 56,2 años (rango 28-76). El promedio de tiempo quirúrgico fue de 183 minutos (rango 120-270) y las pérdidas hemáticas estimadas de 68 mililitros. La incidencia de morbilidad mayor fue de 15,4 por ciento y la media de estadía hospitalaria de 5,4 días. La media del período de seguimiento fue de 35 (rango 9-69) meses con una recidiva local de 7,7 por ciento y una supervivencia global a los 5 años de 100 por ciento. Conclusiones: La escisión total del mesorrecto transanal combinado con cirugía laparoscópica es una técnica factible y segura. La introducción de la variante técnica utilizando el instrumental de la Microcirugía Transanal Endoscópica es más ergonómica y disminuye los costos(AU)

Introduction: The indications for transanal endoscopic microsurgery have evolved from surgery of rectal tumors to other pelvic diseases. The association between this and total excision of the transanal mesorectum offers a series of advantages. Objective: To determine the indications, to describe the surgical technique and to show the long-term outcomes obtained in the performance of total excision of the transanal mesorectum for treating cancer of the middle and lower rectum. Methods: A descriptive and prospective observational study was carried out of patients with cancer of the middle and lower rectum who underwent this surgical technique in the period from February 2017 to February 2022 at Centro Nacional de Cirugía de Mínimo Acceso. Results: Thirteen patients were operated on, 9 with cancer of the lower rectum and 4 with cancer of the middle rectum, as well as an average age of 56.2 years (range 28-76). The average surgical time was 183 minutes (range 120-270) and estimated blood loss was 68 milliliters. The incidence of highest morbidity was 15.4 percent and mean hospital stay was 5.4 days. The median follow-up period was 35 (range 9-69) months, with a local recurrence of 7.7 percent and an overall 5-year survival of 100 percent . Conclusions: Total excision of the transanal mesorectum combined with laparoscopic surgery is a feasible and safe technique. The introduction of the variant technique using the instruments of endoscopic transanal microsurgery is more ergonomic and reduces costs(AU)

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.

¿Cómo Intervenir el Proceso de Caries en Personas Mayores? Adaptación del Consenso de ORCA/EFCD/DGZ

Los cambios demográficos y epidemiológicos actuales determinarán un aumento en la prevalencia e incidencia de caries, específicamente lesiones de caries radicular (RCLs, por sus siglas en inglés) en personas mayores, por lo que la necesidad de tratamiento de mayor cobertura y efectividad será también cada vez mayor. Este artículo resume en español la evidencia actual disponible acerca de las recomendaciones clínicas para las intervenciones preventivas, no invasivas, micro o mínimamente invasivas e invasivas para el manejo de la caries dental en personas mayores, con especial énfasis en RCLs. La presente publicación se basa en un taller de consenso, seguido de un proceso de consenso e-Delphi, realizado por un panel de expertos nominados por la Organización Europea para la Investigación en Caries (ORCA), la Federación Europea de Odontología Conservadora (EFCD) y la Federación Alemana de Odontología Conservadora (DGZ). El propósito de este artículo es presentar las principales conclusiones alcanzadas en el consenso de ORCA/EFCD/DGZ para permitir una mejor difusión del conocimiento y la aplicación de estos conceptos en la práctica clínica, orientando la correcta toma de decisiones en el manejo de la enfermedad y RCLs en las personas mayores.

Current demographic and epidemiological changes will condition increased caries prevalence and incidence, specifically root caries lesions (RCLs) in the elderly. There will be a need, therefore, for therapeutic approaches with greater coverage and effectiveness. This article summarizes, in Spanish, the current available evidence leading to clinical recommendations for preventive, non-invasive, micro or minimally invasive and invasive interventions for the management of dental caries in older people, with special emphasis on RCLs. This publication is based on a consensus workshop, followed by an e-Delphi consensus process, conducted by a panel of experts nominated by the European Organization for Caries Research (ORCA), the European Federation of Conservative Dentistry (EFCD) and the German Federation of Conservative Dentistry (DGZ). The purpose of this article is to present the main conclusions reached in the ORCA/EFCD/DGZ consensus to allow a better dissemination of knowledge and the application of these concepts in clinical practice, guiding the correct decision-making for the disease management and the RCLs in the elderly.

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)