Objective To investigate the related factors affecting the metastases to left gastric artery lymph nodes in patients of esophageal cancer, and evaluate the clinical significance of resection of left gastric artery. Methods One hundred and eighty-six patients with esophageal cancer undergone esophagectomy and esophagogastrostomy were involved in these case-control study. The left gastric artery, lymph nodes and fat tissue around it were removed in these patients. Patients were divided into 2 groups according to the occurrence of metastases to para left gastric artery lymph nodes. Chi-square test, rank sum test, t-test and the logistic regression were adopted to analyze the correlations between these related factors and the metastases to para left gastric artery lymph nodes. Results Thirty-three patients had para left gastric artery lymph nodes metastases （17. 74%）. Related factors that affect the metastases to para left gastric artery lymph nodes were showed by monovariate analysis as follows： TNM staging of tumor, the metastases to paraesophageal nodes, paracardial nodes and subcarinal nodes （P〈0.001, P=0.025, 0.047,0.038）. Multivariate analysis showed that location of tumor was the only independent factor that influences the metastases of para left gastric artery lymph nodes（P= 0. 002）. Skip metastasis was a distinct feature of esophageal cancer, with a frequency of 78.79%（26/33）. Conclusions This study suggests that the major correlative factor of para left gastric artery lymph node metastasis is location of tumor. Resection of left gastric artery as a routine procedure in radical operation of esophageal cancer should be considered.
Objective To evaluate the effect of perioperative fluid management on postoperative pulmonary complications (PPCs) of esophagectomy, and to find out the optimal scheme for perioperative fluid administration. Methods This retrospective cohort study enrolled 75 patients with esophageal squamous cell cancer who have received esophagectomy in West China Hospital from June to December 2014. We used the Kroenke's postoperative pulmonary complications classification system to define the PPCs. Patients with PPCs of grade Ⅱ-Ⅳ were considered as PPCs group (n=13, 12 males, 1 female, age of 64.62±8.64 years), and others were considered as non-complication group (n=62, 50 males, 12 females, age of 60.55±8.73 years). Intraoperative and postoperative fluid inputs and outputs as well as clinical characteristics between groups were compared. Results Between two groups, there was a great difference in postoperative albumin infusion, intraoperative fluid administration [net input, total input, net input/kg, total input/kg, net input/(kg·h) and total input/(kg·h)] and fluid input on the first postoerative 1–3 days (total input and total input/kg). The cutoff value for total input/(kg·h) in operation and total input on the first 1–3 postoerative days was 12.07 ml/(kg·h) and 178.57 ml/kg, respectively. Conclusion The speed of fluid infusion in operation and total input on postoperative 1-3 days are most important influence factors of PPCs. The speed in operation should not exceed 12.07 ml/(kg·h) and the total input on postoperative 1-3 days should not exceed 178.57 ml/kg. Within this range, an appropriate increase in fluid volume can make patients feel better.
The complication rate and mortality rate of traditional emergency surgery for acute obstructive colorectal cancer are very high. Self-expanding metal stent (SEMS) as a bridge to surgery can rapidly decompress the intestinal tract and radical surgery can be performed after the patients’ general condition improve. This technology has been widely developed, but its safety is still controversial, mainly related to the risk of SEMS implantation and its impact on the long-term survival of patients. This article will introduce the rationale, pathophysiology, short-term safety and long-term oncology safety of SEMS implantation, in order to provide basis for clinicians to choose treatment methods.
Objective To investigate the clinical feasibility and effectiveness of the modified grafted tubularized incised plate urethroplasty (G-TIP), namely “glans G-TIP (GG-TIP) ”, in treatment of hypospadias. Methods A clinical data of 137 children with hypospadias qualified by the selection criteria between January 2021 and June 2023 was retrospectively analyzed. Among them, 75 children were treated with GG-TIP (GG-TIP group) and 62 with G-TIP (G-TIP group). There was no significant difference (P>0.05) between the two groups in terms of age, hypospadias type, penile length, penile head width, penile head height, penile curvature, meatus-apex distance, urethral plate width, and distance from the distal endpoint of navicular groove to the dorsal or ventral midline point of the glans corona, and the difference between the two. The operation time, reconstructed urethral length, distance from meatus to ventral glans corona, postoperative complications, maximum urinary flow rate at 2 weeks after operation, and the hypospadias objective scoring evaluation (HOSE) score at 6 months after operation in the two groups were recorded and analyzed. Results The operation time was significantly shorter in GG-TIP group than in G-TIP group (P<0.05); but there was no significant difference (P>0.05) between the two groups in terms of reconstructed urethral length and distance from meatus to ventral glans corona. All urinary meatus located at the tip of glans with vertical fissure shape. All children in the two groups were followed up 6-35 months (median, 26 months). During follow-up, there were 3 cases of urethral fistula, 2 cases of urethral stricture, and 1 case of glans separation in GG-TIP group, and 3, 3, and 1 cases in the G-TIP group, respectively. There was no significant difference in the incidence of complications between the two groups (P>0.05). The maximum urinary flow rate at 2 weeks and the HOSE score at 6 months after operation were significantly higher in GG-TIP group than in G-TIP group (P<0.05). Conclusion GG-TIP is safe and effective for repairing hypospadias in children. Compared with G-TIP, it has the advantages of relatively simple operation, shortened operation time, significant improvement in urinary flow rate, and better cosmetic results.
Objective To assess the impact of earthquake magnitude scale on injury characteristics of patients admitted to an earthquake rescue hospital，and provide references for rescue strategy formulation and medical resourceallocation. Methods We retrospectively analyzed clinical data of patients injured in 2008 “5 • 12” Wenchuan earthquakeand 2013 “4 • 20” Lushan earthquake who were admitted to West China Hospital of Sichuan University. Patient gender，age，time of admission，mechanisms，types and severity of injury and their prognosis were compared between the 2 groups.Results A total of 1 856 patients who were injured in Wenchuan earthquake，including 974 male and 882 female patients with their age of 45.8±22.7 years，and 316 patients who were injured in Lushan earthquake，including 174 male and 142 female patients with their age of 43.0±23.1 years，were enrolled in our study. No significant difference was found in genderor age between these 2 groups （P＞0.05）. Peak time of admission of Wenchuan earthquake patients was significantlylater than that of Lushan earthquake patients，and transfer duration of Wenchuan earthquake patients was significantly longerthan that of Lushan earthquake patients. The percentage of patients with crash injury of heavy objects or buried trauma ofWenchuan earthquake patients was significantly higher than that of Lushan earthquake patients. Injury severity and in-hospitalmortality of Wenchuan earthquake patients were significantly higher than those of Lushan earthquake patients. The proportionof patients with chest or cerebral injury of Lushan earthquake patients was significantly higher than that of Wenchuanearthquake patients. Conclusions Earthquake magnitude scale has a significant influence on mechanisms，types andseverity of injury of patients injured in earthquakes，as well as their timely transfer，management and prognosis. In earthquakeswith a comparatively lower magnitude scale，more thoracic surgeons and neurosurgeons are needed to ensure timelymanagement for patients with chest or cerebral injury.
ObjectiveTo analyze the effect and prognosis of laparoscopic patch repair of esophageal hiatal hernia.MethodsFrom October 2014 to January 2019, 100 patients with gastroesophageal reflux disease undergoing laparoscopic esophageal hiatus hernia repair were randomly divided into the patch group and the non-patch group. All patients underwent laparoscopic repair of esophageal hiatal hernia plus fundoplication (Nissen’s method). On that basis, the patients in the patch group used special mesh for esophageal hiatal hernia repair, while the ones in the non-patch group did not. All the patients were followed up for a long time. The operative effect, postoperative complication rate, recurrence rate, and satisfaction rate of the patients between the two groups were compared.ResultsA total of 98 patients were successfully followed up for more than one year, including 68 in the patch group and 30 in the non-patch group. One year after surgery, the differences between the patch group and the non-patch group in the improvements of reflux attack, heartburn, dysphagia, and food intake were statistically significant (P<0.05); there was no significant difference between the patch group and the non-patch group in satisfaction rate (82.4% vs. 73.3%, P>0.05); the differences in recurrence rate (2.9% vs. 26.7%) and incidence of dysphagia (47.0% vs. 6.7%) between the patch group and the non-patch group were statistically significant (P<0.05).ConclusionFor the patients with gastroesophageal reflux disease caused by esophageal hiatal hernia, the laparoscopic repair of esophageal hiatal hernia + Nissen fundoplication on the basis of reasonable selection of special mesh for esophageal hiatal hernia can obtain satisfactory clinical effect.
ObjectiveTo investigate the effectiveness of penile up transfer method in the treatment of penoscrotal transposition (PST) in children. Methods A clinical data of 46 children with PST admitted between January 2015 and March 2021 and met selective criteria was retrospectively analyzed. The M-shaped scrotal flap method was adopted in 21 cases (group A), and the penile up transfer method was adopted in 25 cases (group B). There was no significant difference in age and PST typing between the two groups (t=0.491, P=0.626; χ2=0.710, P=0.790). The operation time and postoperative complications of the two groups were recorded and compared, and the correction effect of PST was evaluated. Results All operations were successfully completed, and no urethral injury occurred during operation. The operation time was significantly less in group B than in group A [(70.36±9.76) minutes vs. (96.62±13.18) minutes; t=7.553, P=0.000]. All children were followed up 6-33 months (mean, 13.2 months). There were 5 cases (23.8%) of skin necrosis and 6 cases (28.6%) of scar hyperplasia in group A, and 1 case (4.0%) of skin necrosis and 1 case (4.0%) of scar hyperplasia in group B. The incidence of complication was significantly lower in group B than in group A (χ2=3.949, P=0.047; χ2=5.341, P=0.021). In the evaluation of PST correction at 6 months after operation, there were 15 cases of complete correction and 6 cases of incomplete correction in group A, 24 cases of complete correction and 1 case of incomplete correction in group B, and the difference was significant (χ2=5.341, P=0.021). Conclusion The penis up transfer method is not only easy to correct PST, but also can correct scrotal separation at the same time, with fewer postoperative complications and satisfactory correction effect of penile scrotal appearance.
Objective To investigate the safety of thoracic surgery for high-altitude patients in local medical center. MethodsWe retrospectively collected 258 high-altitude patients who received thoracic surgery in West China Hospital, Sichuan University (plain medical center, 54 patients) and People's Hospital of Ganzi Tibetan Autonomous Prefecture (high-altitude medical center, 204 patients) from January 2013 to July 2019. There were 175 males and 83 females with an average age of 43.0±16.8 years. Perioperative indicators, postoperative complications and related risk factors of patients were analyzed. ResultsThe rate of minimally invasive surgery in the high-altitude medical center was statistically lower than that in the plain medical center (11.8% vs. 55.6%, P<0.001). The surgical proportions of tuberculous empyema (41.2% vs. 1.9%, P<0.001) and pulmonary hydatid (15.2% vs. 0.0%, P=0.002) in the high-altitude medical center were statistically higher than those in the plain medical center. There was no statistical difference in perioperative mortality (0.5% vs. 1.9%, P=0.379) or complication rate within 30 days after operation (7.4% vs. 11.1%, P=0.402) between the high-altitude center and the plain medical center. Univariate and multivariate analyses showed that body mass index≥25 kg/m2 (OR=8.647, P<0.001) and esophageal rupture/perforation were independent risk factors for the occurrence of postoperative complications (OR=15.720, P<0.001). ConclusionThoracic surgery in the high-altitude medical center is safe and feasible.
ObjectiveTo present the initial clinical experience of robot-assisted thoracoscopic esophagectomy for patients with esophageal cancer and to analyze the short-term outcomes of these patients.MethodsBetween February 2016 and December 2017, 148 patients with esophageal carcinoma underwent robotic esophagectomy and two-fields lymph node dissection. There were 126 males and 22 females at average age of 62.0±8.0 years. Demographic data, intraoperative characteristics and short-term surgical outcomes were collected and analyzed.Results106 patients underwent McKeown esophagectomy and 42 patients underwent Ivor-Lewis esophagectomy. The mean operation time was 336.0±76.0 min, the mean intraoperative blood loss was 130.0±89.0 ml, the mean number of lymph nodes removed was 21.0±8.0 and the mean length of postoperative hospital-stay was 12.0±7.2 days. Postoperative complications included anastomotic fistula (n=8, 5.4%), pulmonary infection (n=13, 8.7%), hoarseness (n=23, 15.5%), tracheoesophageal fistula (n=1, 0.7%), chylothorax (n=4, 2.7%) and incision infection (n=2, 1.4%). There was no intra-operational massive hemorrhage or in-hospital mortality.ConclusionBoth robot-assisted McKeown and Ivor-Lewis esophagectomy are safe and feasible with good early outcomes.
Objective Anthropometric variants in prepubertal boys with hypospadias were assigned and assessed to illustrate anatomical malformation. Methods A total of 516 prepubertal (Tanner grade Ⅰ) boys with hypospadias who were admitted to three medical centers between March 2021 and December 2021 and met the selection criteria for primary surgery were selected. The age of the boys ranged from 10 to 111 months, with an average of 32.6 months. Hypospadias were classified according to the location of the urethral defect, 47 cases (9.11%) of the distal type (the urethral defect is in the coronal groove or beyond), 208 cases (40.31%) of the middle type (the urethral defect is in the penis body), and 261 cases (50.58%) of the proximal type (the urethral defect is at the junction or proximal side of the penis and scrotum). The following indexes were measured: penis length before and immediately after operation, reconstructed urethral length, and total urethral length. Morphological indicators of the glans area, including preoperative height and width of glans, AB, BC, AE, AD, effective AD, CC, BB, the urethral plate width of the coronal sulcus, and postoperative height and width of glans, AB, BE, and AD. In which point A is the distal endpoint of navicular groove, point B is the protuberance lateral to the navicular groove, point C is the ventrolateral protuberance of the glans corona, point D is the dorsal midline point of the glans corona, and point E is the ventral midline point of the coronal sulcus. The foreskin morphological indicators, including the foreskin width, inner foreskin length, and outer foreskin length. The scrotal morphological indicators, including the left, right, and front penile to scrotum distance. The anogenital distances, including anoscrotal distance 1 (ASD1), ASD2, anogenital distance 1 (AGD1), and AGD2. ResultsThe penis length of the distal, middle, and proximal types decreased successively before operation, the reconstructed urethral length increased successively and the total urethral length decreased successively, these differences were all significant (P<0.05). The height and width of the glans of the distal, middle, and proximal types significantly decreased successively (P<0.05), but the height/width of the glans was generally close; AB value, AD value, and effective AD value significantly decreased successively (P<0.05); there was no significant difference in BB value, urethral plate width of the coronary sulcus, and (AB+BC)/AD value between the groups (P>0.05). There was no significant difference in the width of glans between the groups after operation (P>0.05); AB value and AB/BE value increased successively, and AD value decreased successively, these differences were all significant (P<0.05). The inner foreskin length in the 3 groups significantly decreased successively (P<0.05), while the outer foreskin length had no significant difference (P>0.05). The left penile to scrotum distance of middle, distal, and proximal types significantly increased successively (P<0.05). ASD1, AGD1, and AGD2 significantly decreased from distal type to proximal type successively (P<0.05). The other indicators’ differences were significant only between some groups (P<0.05).Conclusion The anatomic abnormalities of hypospadias can be described by anthropometric indicators, which can be used as the basis for further standardized surgical guidance.