ABSTRACT
Objective:To compare the short- and long-term efficacy and safety of endoscopic submucosal dissection (ESD) and transanal endoscopic microsurgery (TEM) in the treatment of rectal neuroendocrine tumor (NET) with maximum diameter ≤20 mm.Methods:From January 1, 2014 to June 30, 2022, the clinical data of 111 patients with rectal NET with maximum diameter ≤20 mm treated by ESD or TEM at Peking University People′s Hospital were retrospectively analyzed. According to the treatment of ESD or TEM, 111 patients with rectal NET were divided into ESD group (76 cases) and TEM group (35 cases). The clinicopathological characteristics (age, distance from anal margin, depth of invasion, etc.) were compared between patients with tumor maximum diameter<10 mm and 10 to 20 mm, and between ESD group patients and TEM group patients. The clinical efficacy and prognosis were also compared between ESD group and TEM group. The follow-up time was 41 months (16 months, 76 months). The propensity score matching (PSM) method was used to balance the differences of clinical characteristics between ESD and TEM groups. Independent sample t test, Wilcoxon rank-sum and chi-square test were used for statistical analysis. The risk factors of lymph node or distant metastasis were analyzed by univariate and multivariate binary logistic regression. Results:The maximum tumor diameter of 111 patients with rectal NET was (6.6±0.3) mm (ranged from 2 to 20 mm). The maximum tumor diameter of 85 cases (76.6%) was <10 mm and that of 26 cases (23.4%) was between 10 mm and 20 mm. There were statistically significant differences in age, distance from the anal margin and incidence of submucosal infiltration between patients with tumor maximum diameter<10 mm and patients with tumor maximum diameter 10 to 20 mm ((49.8±11.6 ) years old vs. (56.8±13.8) years old; 5.0 cm (4.0 cm, 8.0 cm) vs. 8.0 cm (5.0 cm, 8.0 cm); 69.4%, 59/85 vs. 96.2%, 25/26; t=2.58, Z=-2.23, χ2=6.35, P=0.011, 0.026 and 0.012). The en block resection rate of rectal NET treated with ESD or TEM was 100.0%(111/111), the complete resection rate was 93.7% (104/111), and the postoperative bleeding rate was 2.7% (3/111). There were no postoperative perforation or other major complications. During the follow-up period, there was no local recurrence. The metachronous recurrent rate was 0.9% (1/111), 3.6% (4/111) patients had lymph node or distant metastasis, and there was no death. Compared with patients with tumor maximum diameter<10 mm, more patients with tumor maximum diameter of 10 to 20 mm selected TEM (57.7%, 15/26 vs. 23.5%, 20/85), and the difference was statistically significant ( χ2=10.76, P=0.001). Before PSM, a total of 7 patients in the ESD group had positive vertical margins, and during the follow-up of 21 months (15 months, 48 months), 2 patients had lymph node or distant metastasis and received surgery. The proportion of patients with tumor maximum diameter of 10 to 20 mm and submucosal invasion in TEM group were both higher than those in ESD group (42.9%, 15/35 vs. 14.5%, 11/76; 88.6%, 31/35 vs. 69.7%, 53/76), and the differences were statistically significant( χ2=10.76 and 3.65, P=0.001 and 0.032). After PSM, there were no statistically significant differences in the complete resection rate, postoperative bleeding rate, metachronous recurrence rate, lymph node or distant metastasis rate between ESD group and TEM group (89.3%, 25/28 vs.100.0%, 28/28; 3.6%, 1/28 vs. 0, 0/28; 3.6%, 1/28 vs. 0, 0/28; 0, 0/28 vs.3.6%, 1/28; all P>0.05). However, the operation time and hospital stay of the ESD group were both shorter than those of the TEM group (27.0 min (25.0 min, 30.0 min) vs. 39.0 min (32.0 min, 45.0 min); 5.0 d (4.0 d, 5.0 d) vs. 6.0 d (3.0 d, 9.0 d)), and the differences were statistically significant ( Z=-3.38 and -2.23, P=0.001 and 0.021). Conclusion:The efficacy of ESD and TEM in rectal NET with maximum diameter ≤ 20 mm is equal, however, ESD has the advantage of shorter procedure time and hospital stay.
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Objective To observe the clinical effect of different surgical methods in the treatment of mediastinal tumors.Methods A total of 74 cases of August 2011 -2015 years 7 months in our hospital admissions of patients with mediastinal tumor were divided into observation group (minimally invasive medi-astinal surgery)and control group (conventional thoracotomy),37 cases,compared to two groups of clini-cal curative effect.Results The total efficiency of treatment in the observation group was 89.19%,signifi-cantly higher than that of the control group and observation group complications rate is relatively lower,sig-nificant differences (χ2 =5.33,6.79,P <0.05);observation group the operative time,amount of bleeding and hospitalization time were (15.69 ±3.21)min,(3.541 ±56.29)ml,(597 ±3.11)d were significantly lower than control group,the difference between two groups was significant (t =12.54,11.49,13.54,P<0.05).Conclusions Phase,compared with the traditional surgical treatment for open and minimally in-vasive surgery can achieve a better therapeutic effect,reduce a patient's risk of complications,alleviate the injury of surgery.For patients with postoperative rehabilitation has a positive meaning.
ABSTRACT
Introducción: las complicaciones en la cirugía de tórax (pulmón, mediastino, esófago) se han asociado con un incremento en la morbilidad y la mortalidad. No se conoce cuál es la influencia de estas en la evolución de estos pacientes. Objetivo: determinar la influencia de las complicaciones mayores posoperatorias en la evolución a corto plazo de los pacientes sometidos a cirugía tóraco-mediastinal-esofágica. Métodos: se realizó un estudio de cohorte retrospectivo. De las bases de datos de la Unidad de Cuidados Intensivos y hospitalaria, entre marzo y octubre del 2013, se estudiaron a los enfermos sometidos a cirugía tóraco-mediastinal-esofágica, se identificó la ocurrencia de complicaciones mayores posoperatorias durante la estadía hospitalaria. Se precisó el tipo de complicación y su influencia en la evolución de los enfermos. Resultados: de 50 pacientes analizados, con una mediana de edad de 58,50 años (RIQ 48-65 años), a 30 (60 por ciento) se les realizó resección pulmonar, a 11 (22 por ciento) cirugía torácica sin resección pulmonar (mediastino y otras) y la cirugía esofágica se le practicó a 9 sujetos (18 por ciento). En 10 pacientes (20 por ciento) se presentó alguna complicación mayor posoperatoria, con 13 complicaciones en total, 7 de carácter médico (53,85 por ciento) y 6 quirúrgicas (46,15 por ciento). Las complicaciones más frecuentes fueron la hemorragia posoperatoria (40 por ciento), la neumonía nosocomial (20 por ciento) y las arritmias cardiacas (20 por ciento). Murieron 4 pacientes, fundamentalmente por complicaciones médicas. Las complicaciones mayores posoperatorias disminuyeron las probabilidades de alta hospitalaria (HR de 0,376 [95 por ciento IC: 0,173-0,815]; p= 0,013). Conclusiones: la frecuencia de las complicaciones mayores posoperatorias en la cirugía tóraco-mediastinal-esofágica fue relativamente alta en esta serie. La mortalidad fue más frecuente en los pacientes con complicaciones médicas. Las complicaciones mayores incrementaron significativamente la estadía en cuidados críticos y hospitalarios(AU)