Efficacy and Safety of Multiband Mucosectomy Versus Cap-assisted Endoscopic Resection For Early Esophageal Cancer and Precancerous Lesions: A Systematic Review and Meta-Analysis Background: The effectiveness of multiband mucosectomy (MBM) for early esophageal cancer and precancerous lesions is still in uncertainty. We aimed to evaluate the efficacy and safety of this procedure and to compare it with cap-assisted endoscopic resection (EMR-cap). Methods: A systematic search of both English and Chinese databases was performed from inception to April 30, 2019. Complete resection rate, local recurrence rate, and procedure time were considered the primary outcome measures. Prevalence of complications was considered the secondary outcome measure. All data analyses were performed using Review Manager Software. Results: Two randomized controlled trials (RCTs) and 3 non-RCTs were included in the final meta-analysis. When compared with the EMR-cap technique, MBM had a similar complete resection rate [odds ratio (OR)=2.09, 95% confidence interval (CI): 0.78-5.60, P=0.14], a similar local recurrence rate (OR=0.50, 95% CI: 0.09-2.67, P=0.42), a shorter resection time (mean difference: −9.08, 95% CI: −13.86 to −4.30, P=0.0002), a shorter procedure time (mean difference: −13.36, 95% CI: −17.85 to −8.86, P<0.00001), a lower bleeding rate (OR=0.45, 95% CI: 0.24-0.83, P=0.01), a similar perforation rate (OR=0.55, 95% CI: 0.15-2.06, P=0.37), and a similar stricture rate (OR=0.77, 95% CI: 0.10-5.84, P=0.80). The results of non-RCTs were consistent with those of RCTs. Conclusions: MBM is similar to EMR-cap in terms of efficacy and safety for endoscopic resection of early cancer and precancerous lesions of the esophagus. However, MBM is less time-consuming. |
Retrieval of Gallbladder Via Umbilical Versus Epigastric Port Site During Laparoscopic Cholecystectomy: A Systematic Review and Meta-Analysis Objective: The objective of this study was to evaluate the comparative efficacy of gallbladder retrieval via the epigastric and umbilical port during laparoscopic cholecystectomy. Methods: We systematically searched MEDLINE, EMBASE, CINAHL, CENTRAL, the World Health Organization International Clinical Trials Registry, ClinicalTrials.gov, ISRCTN Register, and bibliographic reference lists. Postoperative pain intensity, port-site infection, hernia, bleeding, and retrieval time were outcome parameters. Combined overall effect sizes were calculated using fixed-effect or random-effects models. Results: We identified 5 randomized controlled trials and 1 prospective cohort study reporting a total of 2394 patients who underwent laparoscopic cholecystectomy with retrieval of the gallbladder via the umbilical port (n=1194) or epigastric port (n=1200). Our initial analysis demonstrated that gallbladder retrieval via the umbilical port was associated with a nonsignificant reduction in pain assessed by visual analogue scale at 24 hours [mean difference (MD): −0.49, 95% confidence interval (CI): −1.06 to 0.08, P=0.09] compared with the epigastric port. However, after sensitivity analysis and eliminating the source of heterogeneity, it reached statistical significance (MD: −0.66, 95% CI: −0.85 to −0.48, P<0.00001). Moreover, gallbladder retrieval via the umbilical port was associated with significantly shorter retrieval time (MD: −1.83, 95% CI: −3.18 to −0.49, P=0.008) but similar risk of port-site infection (odds ratio: 1.99, 95% CI: 0.53-7.44, P=0.31) and hernia (odds ratio: 0.33, 95% CI: 0.03-3.20, P=0.34). Conclusions: Our analysis demonstrated that retrieval of the gallbladder via the umbilical port may be associated with less postoperative pain in patients undergoing laparoscopic cholecystectomy compared with epigastric port retrieval. It may also be associated with shorter gallbladder retrieval time. However, the available evidence is limited. |
Postcolonoscopy Appendicitis: A Review of 57 Cases The purpose of this study is to review the cases of postcolonoscopy appendicitis (PCA) reported in the literature. A comprehensive search using PubMed, EMBASE, Scopus, and Google Scholar identified 57 cases. The median age at presentations of PCA was 55 years. PCAs typically occurred during the first 24 hours after colonoscopy, and the majority developed after diagnostic colonoscopy. Clinical presentations were similar to those with common acute appendicitis, though with a high perforation rate. Most patients were correctly diagnosed using ultrasound or computed tomography scan. Treatment included open appendicectomy, laparoscopic appendicectomy or cecotomy, radiologic drainage of the abscess, nonoperative treatment with antibiotics. In addition to barotrauma, fecalith impaction into the appendiceal lumen, direct trauma to the appendiceal orifice, and underlying ulcerative colitis, a pre-existing subclinical disease of the appendix seems to play an important role in the pathogenesis. For PCA, timely diagnosis and management are crucial to attain a satisfactory outcome. |
Prospective Randomized Control Study on the Efficiency and Safety of a Novel Port-site Closure Device, the EZ-close Port-site Closure System Aim: The efficiency and safety of EZ-close Port-Site Closure System were investigated in comparison with those of the Carter-Thomason CloseSure System (CT) device. Methods: This was a prospective randomized control study. The primary outcome was the time taken to complete the closure of the port site using either the EZ or CT. The suture time (mean±SD) for the EZ group was significantly less than that of the CT group (36.8±10.1 s for the EZ group vs. 48.9±21.5 s for the CT group, P=0.004). There was no need for additional instruments in the EZ group, but in 84.6% of the patients in the CT group, a grasper was required to hold the tie (P<0.05). There was no difference in the complication rates between the 2 groups. Conclusions: The EZ device showed an improved efficiency and similar safety compared with that of the CT device. Its main advantage lied in enabling the surgeon to be totally self-sufficient for the whole port-site closing procedure. |
Effects of a Preoperative Transdermal Fentanyl Patch on Proinflammatory Cytokine and Pain Levels During the Postoperative Period: A Randomized Controlled Trial Objective: The main objectives of this article were to assess the effect of preoperative transdermal fentanyl patch (TFP) on interleukin (IL)-6 and IL-8 levels and pain after laparoscopic cholecystectomy. Materials and Methods: Patients received a TFP (25 μg/h) (patch group, n=30) or a placebo patch (control group, n=30) applied 14 hours before operation. After surgery, control group received intravenous continuous fentanyl (25 μg/h) with loading dose (25 μg). IL-6 and IL-8 levels were measured at admission and 1, 6, 12, 24, and 48 hours postoperatively. Pain score and consumption of rescue analgesic were evaluated too. Results: At 24 hours postoperatively, IL-6 and IL-8 reached a peak and then decreased. The peak IL-6 levels were 21.92(±6.22) and 24.91(±6.81) pg/mL in the patch and control group. The significant differences of IL-6 between groups were shown at 6 and 12 hours postoperatively (P=0.032, 0.0001). There were no significant differences in IL-8 levels and pain score. Conclusions: Preoperative TFP attenuated the increase in IL-6 levels after surgery and provided similar analgesia to continuous fentanyl infusion. Preemptive TFP may have influence on proinflammatory reactions and pain control after surgery. |
Can Surgeons Identify Appendicitis Macroscopically? Results From a Multicentre Prospective Study Purpose: The primary outcome was to investigate the accuracy of intraoperative macroscopic diagnosis by the operating surgeon with the results of the subsequent histopathologic examination. The secondary outcome was to identify the predictors of discrepancies between these 2 groups. Materials and Methods: A multicentre, prospective, observational study was conducted over a period of 2 months with a 30-day follow-up period. Patients who underwent surgery with the intention of appendicectomy were recruited in the study. Results: A total of 1169 patients were recruited. False negatives (FNs) were defined as a normal macroscopic diagnosis but histopathologically appendicitis, whereas false positive otherwise. Overall, FN rates were 22.4%, whereas false positive rates were 8.2%. The seniority of the operating surgeons did not affect the ability to accurately diagnose appendicitis macroscopically (P=0.069). However, consultant surgeons had the lowest FN rate of 15.6%. Females and preoperative ultrasound scan increased odds of FN, whereas preoperative computed tomography decreased the odds of FN appendicectomy. Conclusion: Macroscopic identification intraoperatively is inaccurate with a FN rate of 22%. |
Laparoscopic-endoscopic Rendezvous Procedures for Upper Gastrointestinal Tumors Guided by Laser-supported Reverse Diaphanoscopy: A Modified Technique Introduction: Precisely locating benign upper gastrointestinal tumors during laparoscopic-endoscopic surgery remains difficult and inaccurate. We describe reverse laser-supported diaphanoscopy (RLSD) for locating gastrointestinal tumors during laparoscopic surgery and present prospective evaluation results of the first cases. Materials and Methods: We studied 13 patients [women:men=7:6; mean age, 67 (range, 41 to 83) y] who underwent gastroscopic-laparoscopic rendezvous procedures during 2015 to 2018. Surgery duration, marking duration, and specimen resection size were recorded. The largest and smallest specimen resection margins were measured. Results: After locating tumors using RLSD, patients underwent successful resections. Histopathologic examination confirmed 5 cases of gastrointestinal stromal tumor; 3, neuroendocrine tumors; 2, heterotopic pancreatic tissue; 1, leiomyoma; 1, adenoma; 1, hyperplastic polyp. We employed 4 to 6 marks, depending on tumor location and size. The average marking duration was 14 minute (1 to 21 min); the average surgery duration, 73 minute (37 to 143 min). The smallest resection median margin was 2.0 mm (1.0 to 5.0 mm); the largest, 7.0 mm (2.0 to 12.0 mm). Conclusions: RLSD precisely locates gastric benign tumors during laparoscopic-endoscopic rendezvous procedures. |
Standardized Laparoscopic Sphincter-preserving Total Mesorectal Excision For Rectal Cancer: Median of 10 Years’ Long-term Oncologic Outcome in 217 Unselected Consecutive Patients This study was designed to evaluate the impact of a standardized laparoscopic total mesorectal excision (TME) on the long-term oncologic outcome. Unselected consecutive patients with rectal cancer underwent a standardized laparoscopic TME with medial to lateral approach encompassing 9 sequential steps. From 2005 to June 2012, laparoscopic sphincter-preserving TME was attempted in 217 patients. Mean follow-up of all patients was a median of 91 months (range, 3 to 164 mo). The local recurrence rate was 6.5%, and the distant recurrence rate was 19.8%. The 10-year disease-free survival (DFS) rates were 76.4% and overall survival (OS) was 67.1%. In the converted group, DFS and OS were 50% and 46.7%, respectively. In the laparoscopic group, DFS and OS were 78.3% and 68.5%, respectively. A standardized laparoscopic sphincter-preserving TME resulted in a favorable long-term oncologic outcome in unselected patients with rectal cancer. Conversion to open surgery has impaired OS and DFS. |
Impact of the Myotomy Extent on Gastric Side on Surgical Outcome After Heller’s Cardiomotomy for Achalasia Background: Laparoscopic Heller cardiomyotomy (LHM) with Dor fundoplication represents the most commonly accepted surgical management for achalasia. The ideal extent of myotomy on the gastric side remains a matter of continuous debate. The aim of this study was to compare the impact of the extent of myotomy on the gastric side on the outcome of LHM. Patients and Methods: Patients with achalasia who underwent LHM included in the study. The patients were classified according to the length of the gastric myotomy into 3 groups (group I: <1.5 cm, group II: 1.5 to 2.5 cm, and group III: >2.5 cm). Results: In total, 212 patients (94 males and 118 females) with achalasia treated by LHM and Dor fundoplication included in the study. No statistically significant differences were found among the 3 groups as regards preoperative data, intraoperative mucosal perforation, operative time, blood loss, and hospital stay. The incidence of persistent dysphagia was significantly higher in the group I. Postoperative GERD symptoms were significantly higher in group III (23.3%, P<0.0001). Recurrent achalasia was significantly higher in group I with 11 patients (15.9%), 8 patients in group II (7.1%), and nil in group III (P<0.02). Conclusions: Longer myotomy on the gastric side (>2.5 cm) ensures complete division of the LES with better outcomes in term of resolution of dysphagia but may be associated with higher postoperative GERD. Therefore, a myotomy length of 1.5 to 2.5 cm on the gastric side provides a balance between relieve of dysphagia and development of postoperative GERD. |
Clinical Outcome of Single-port Surgery in Patients With Pathologic T4 Colon Cancer Purpose: The aim of this study was to evaluate the clinical outcomes of single-port surgery (SPS), compared with those of multiport surgery (MPS) in patients with pathologic T4 colon cancer. Materials and Methods: A total of 188 patients with proven pathologic T4 colon cancer who underwent laparoscopic surgery from January 2008 to December 2014 were enrolled in this study. These patients were divided into the SPS group (n=94) and the MPS group (n=94). The clinical outcomes were compared between groups. Results: The median operative time was significantly shorter in the SPS group than in the MPS group (P=0.045). Postoperative complications did not differ between the groups. The length of postoperative hospital stay was significantly shorter in the SPS group than in the MPS group (P<0.001). Oncological resection rates were similar between groups. The 3-year relapse-free survival rates, the 3-year local recurrence-free survival rates, and the 5-year overall survival rates were similar between groups. Conclusions: SPS is safe and feasible in patients with pathologic T4 colon cancer. |
Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,
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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,
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00302841026182,
00306932607174,
alsfakia@gmail.com,
Anapafseos 5 Agios Nikolaos 72100 Crete Greece,
Medicine by Alexandros G. Sfakianakis
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