Optimal time to initiate early oral feeding in postoperative patients with upper gastrointestinal malignancy: A network meta-analysis

BACKGROUND

With the development of enhanced recovery after surgery, early oral feeding is likely to become the preferred mode of nutrition after surgery for upper gastrointestinal tract malignancies. However, the optimal time to initiate early oral feeding remains unknown.

OBJECTIVE

We aimed to compare the effects of different introduction times of early oral feeding in patients with upper gastrointestinal malignancies in terms of safety, tolerance, and effectiveness and to identify the optimal time for early oral feeding after surgery.

METHODS

A random-effects meta-analysis was performed to identify evidence from relevant randomized controlled trials. Ten electronic databases were searched for randomized controlled trials from their earliest records to May 2023. Data were analyzed using the Stata 16.0 software.

RESULTS

A total of 22 randomized controlled trials including 2510 patients and seven time points for oral feeding after surgery were considered. Regarding safety, oral feeding initiated on postoperative day 3 may be the safest (high-quality evidence) compared with other times. Regarding tolerance, oral feeding initiated on postoperative day 5 may be the most well-tolerated (moderate-quality evidence) compared with other times. Regarding effectiveness, oral feeding initiated on postoperative day 3 may be the most effective (moderate-quality evidence) compared with other times.

CONCLUSIONS

Early oral feeding is safe, tolerable, and effective in postoperative patients with upper gastrointestinal malignancies. The optimal time to initiate early oral feeding after surgery was most likely postoperative day 3. The results of this meta-analysis provide evidence-based guidelines for clinical decision-making.

Endoscopic Vacuum Therapy for Upper Gastrointestinal Leaks and Perforations: Analysis From a Multicenter Spanish Registry

INTRODUCTION

Endoscopic vacuum therapy (EVT) is a novel technique for closing upper gastrointestinal (UGI) defects. Available literature includes single-center retrospective cohort studies with small sample sizes. Furthermore, evidence about factors associated with EVT failure is scarce. We aimed to assess the efficacy and safety of EVT for the resolution of UGI defects in a multicenter study and to investigate the factors associated with EVT failure and in-hospital mortality.

METHODS

This is a prospective cohort study in which consecutive EVT procedures for the treatment of UGI defects from 19 Spanish hospitals were recorded in the national registry between November 2018 and March 2022.

RESULTS

We included 102 patients: 89 with anastomotic leaks and 13 with perforations. Closure of the defect was achieved in 84 cases (82%). A total of 6 patients (5.9%) had adverse events related to the EVT. The in-hospital mortality rate was 12.7%. A total of 6 patients (5.9%) died because of EVT failure and 1 case (0.9%) due to a fatal adverse event. Time from diagnosis of the defect to initiation of EVT was the only independent predictor for EVT failure (odds ratio [OR] 1.03, 95% confidence interval [CI] 1.01-1.05, P = 0.005). EVT failure (OR 24.5, 95% CI 4.5-133, P = 0.001) and development of pneumonia after EVT (OR 246.97, 95% CI 11.15-5,472.58, P = 0.0001) were independent predictors of in-hospital mortality.

DISCUSSION

EVT is safe and effective in cases of anastomotic leak and perforations of the upper digestive tract. The early use of EVT improves the efficacy of this technique.

[Anastomotic techniques in minimally invasive esophageal and gastric surgery]

In specialized centers minimally invasive surgery has become established as the standard of care for esophageal and gastric surgery. Offering equal oncological outcome, patients benefit with respect to lower postoperative pain and complication rates. The creation of the anastomosis during minimally invasive surgery remains a critical step and the complications are decisive for the immediate postoperative course. So far no clear consensus exists in the literature regarding the recommended techniques for placement of an anastomosis after resections in the upper gastrointestinal tract. This article summarizes and compares the various established anastomotic techniques used in minimally invasive esophageal and gastric surgery.

Endoscopic full-thickness resection for upper gastrointestinal tract lesions: a systematic review and meta-analysis

INTRODUCTION

Endoscopic full-thickness resection (EFTR) is used to resect difficult superficial mucosal lesions and sub-epithelial lesions (SELs). We conducted a systematic review and meta-analysis to evaluate the efficacy and safety of EFTR for upper gastrointestinal tract (GIT) lesions.

METHODS

We conducted a comprehensive literature search of MEDLINE, EMBASE, Cochrane, ClinicalTrials.gov, and Scopus databases for studies published in the English language that addressed outcomes of EFTR for upper GIT lesions through November 2021. The weighted pooled rates with the 95% confidence interval (CI) were calculated. Cochran Q test and I statistics were used to calculate heterogeneity.

RESULTS

We identify 740 articles on the initial search and six studies met the inclusion criteria. 140 patients (45.7% females) with 142 lesions were analyzed. Four studies used the full-thickness resection device (FTRD®). EFTR was performed for 26 adenomas, 97 SELs, six adenocarcinomas, and ten full-thickness biopsies. The overall technical success rate was 86.9% (CI 79.8-94%, I 2 = 38.9%), R0 resection was 80% (CI 67.6-92.3%, I 2 = 75.6%), and the overall adverse events rate was 18.6% (9.8-27.2%, I 2 = 49.4%). Major adverse events included six episodes of major bleeding, three micro-perforations, one large duodenal perforation, and one case of mucosal damage from FTRD®. At 3-6 months follow-up, there were only two cases of recurrence (R0 was not achieved in both).

CONCLUSION

EFTR has a high technical and clinical success rate in managing upper GIT lesions with an acceptable safety profile. Large prospective studies comparing EFTR with conventional endoscopic resection techniques are needed.

Endoscopic vacuum therapy in the upper gastrointestinal tract: when and how to use it

BACKGROUND

Endoscopic vacuum therapy (EVT) has emerged as a novel treatment option for upper gastrointestinal wall defects. The basic principle of action of EVT entails evacuation of secretions, removal of wound debris, and containment of the defect. Furthermore, there is increasing evidence that EVT reduces interstitial edema, increases oxygen saturation, and promotes tissue granulation and microcirculation. Various devices, such as macroporous polyurethane sponge systems or open-pore film drains, have been developed for specific indications. Depending on the individual situation, EVT devices can be placed in- or outside the intestinal lumen, as a stand-alone procedure, or in combination with surgical, radiological, and other endoscopic interventions.

PURPOSE

The aim of this narrative review is to describe the current spectrum of EVT in the upper gastrointestinal tract and to assess and summarize the related scientific literature.

CONCLUSIONS

There is growing evidence that the efficacy of EVT for upper GI leakages exceeds that of other interventional treatment modalities such as self-expanding metal stents, clips, or simple drainages. Owing to the promising results and the excellent risk profile, EVT has become the therapy of choice for perforations and anastomotic leakages of the upper gastrointestinal tract in many centers of expertise. In addition, recent clinical research suggests that preemptive use of EVT after high-risk upper gastrointestinal resections may play an important role in reducing postoperative morbidity.

Evolution of endoscopic vacuum therapy for upper gastrointestinal leakage over a 10-year period: a quality improvement study

BACKGROUND

Endoscopic vacuum therapy (EVT) is an effective treatment option for leakage of the upper gastrointestinal (UGI) tract. The aim of this study was to evaluate the clinical impact of quality improvements in EVT management on patients' outcome.

METHODS

All patients treated by EVT at our center during 2012-2021 were divided into two consecutive and equal-sized cohorts (period 1 vs. period 2). Over time several quality improvement strategies were implemented including the earlier diagnosis and EVT treatment and technical optimization of endoscopy. The primary endpoint was defined as the composite score MTL30 (mortality, transfer, length-of-stay > 30 days). Secondary endpoints included EVT efficacy, complications, in-hospital mortality, length-of-stay (LOS) and nutrition status at discharge.

RESULTS

A total of 156 patients were analyzed. During the latter period the primary endpoint MTL30 decreased from 60.8 to 39.0% (P = .006). EVT efficacy increased from 80 to 91% (P = .049). Further, the need for additional procedures for leakage management decreased from 49.9 to 29.9% (P = .013) and reoperations became less frequent (38.0% vs.15.6%; P = .001). The duration of leakage therapy and LOS were shortened from 25 to 14 days (P = .003) and 38 days to 25 days (P = .006), respectively. Morbidity (as determined by the comprehensive complication index) decreased from 54.6 to 46.5 (P = .034). More patients could be discharged on oral nutrition (70.9% vs. 84.4%, P = .043).

CONCLUSIONS

Our experience confirms the efficacy of EVT for the successful management of UGI leakage. Our quality improvement analysis demonstrates significant changes in EVT management resulting in accelerated recovery, fewer complications and improved functional outcome.

[Diagnostic and treatment of foreign bodies of the upper digestive tract]

OBJECTIVE

To evaluate the results of diagnosis and treatment of foreign bodies of the upper gastrointestinal tract.

MATERIAL AND METHODS

There were 1187 patients aged 15-99 years with suspected foreign body of the upper gastrointestinal tract. In 536 patients (266 men, 270 women), foreign bodies were detected. Ingestion of a foreign body was more common in patients aged 46-65 years. In 516 patients, foreign bodies were detected in the esophagus (pharyngo-esophageal junction - 25, upper third of the esophagus - 426, middle third of the esophagus - 34, lower third of the esophagus - 21, esophageal-gastric junction - 10). Four patients admitted with esophageal wall perforation. In 3 cases, foreign bodies were localized in the throat, 15 patients - in the stomach, 2 patients - in the duodenum.

RESULTS

In most cases, foreign bodies were organic (n=506). Removal was successful in 530 cases. In 4 patients with esophageal wall perforation and mediastinitis, removal was performed intraoperatively. Flexible endoscope was used in 500 cases. In 86 patients, foreign bode was displaced in the stomach using flexible endoscopy. Foreign body removing wasn't successful in 4 cases. In 2 patients, extraction was followed by esophageal wall damage. In 4 patients, esophagotomy was applied to extract foreign body. Suturing the esophageal wall defect was carried out in 2 cases. Abrasion and erosive esophagitis were the most common injuries of esophageal mucosa. Esophageal diseases were detected in 75 cases after foreign body removal (67 cases - benign esophageal diseases). One patient died from bedsore of innominate artery complicated by acute hemorrhage.

CONCLUSION

Foreign bodies of the upper gastrointestinal tract are observed in 45% of patients at admission. Neck and chest X-ray examination is obligatory before endoscopy. Flexible endoscopy is a gold standard for diagnosis and extraction of foreign bodies. Repeated endoscopy after foreign body extraction should be mandatory. It is necessary to visualize complications associated with foreign body and identify esophageal diseases.

Endoscopic negative pressure therapy of the upper gastrointestinal tract

Endoscopic negative pressure therapy (ENPT) has been adapted for upper gastrointestinal tract applications. More than 400 patients have already been treated with ENPT due to transmural defects in the upper gastrointestinal tract, with a success rate of 87%. The greatest experience exists for the treatment of anastomotic leakages and perforations of the esophagus. The ENPT is also used in the duodenum, pancreas and for complications after bariatric surgery. There are new indications that go beyond treatment in complication management. Innovative drainage types and endoscopic techniques have been developed that broaden the spectrum of applications. The aim of this article is to give an overview of the current status of ENPT in the upper gastrointestinal tract.

The impact of fast track protocols in upper gastrointestinal surgery: A meta-analysis of observational studies

BACKGROUND

Fast track surgery has been implemented in colorectal procedures during the last decade and is accompanied by significant improvement in patient outcomes during the early postoperative period. However, to date, its adoption in upper gastrointestinal surgery remains a matter of debate. In this context, we aimed to summarize the existing evidence in the international literature.

MATERIALS AND METHODS

We searched Medline, Scopus, ClinicalTrials.gov and Cochrane Central Register databases for published randomized controlled trials. The meta-analysis was performed with the RevMan 5.3.5 software.

MAIN FINDINGS

Thirty studies were finally included in the present meta-analysis. The post-operative morbidity was not influenced by the implementation of fast track surgery (FTS) (OR 0.84, 95% CI 0.64-1.09). However, in cases treated with laparoscopic surgery fast track surgery seemed to reduce morbidity by 50% (p = .006). The overall mortality of patients was low in the majority of included studies and was not influenced by fast track surgery (OR 1.12, 95% CI 0.50-2.52). The duration of postoperative hospitalization was significantly reduced with the adoption of FTS (MD -2.24, 95% CI -2.63 to -1.85 days). Concurrently, the overall cost was significantly reduced in cases treated with FTS (MD -982.30, 95% CI -1367.68 to -596.91 U.S dollars).

CONCLUSION

According to the findings of our meta-analysis suggest that FTS seems to be safe in patients undergoing upper gastrointestinal surgery and reduce both the days of postoperative hospitalization and the overall cost. This observation should be taken into account in future recommendations to enhance the implementation of FTS protocols in current clinical practice.

Comparison of sedation between the endoscopy room and operation room during endoscopic submucosal dissection for neoplasms in the upper gastrointestinal tract

BACKGROUND

The present study was performed to compare the safety of sedation during endoscopic submucosal dissection (ESD) in the endoscopy room versus operation room.

METHODS

In total, 297 patients with gastrointestinal tumors who underwent ESD from January 2011 to December 2016 were retrospectively reviewed. The patients were divided into two groups: those who underwent ESD in the endoscopy room without propofol (Group E) versus operation room with propofol (Group O). The patient, tumor, and procedure characteristics; adverse events; and treatment outcomes were compared between the two groups.

RESULTS

The patient and tumor characteristics, including age (73.6 ± 8.2 vs. 72.5 ± 9.1 years), comorbidities, and tumor size and histology, were not different between Groups E and O. The ESD procedure time was comparable between Groups E and O (105.4 ± 70.4 vs. 106.5 ± 64.4 min), and the anesthesia time was equivalent (138.3 ± 78.1 vs. 148.4 ± 68.8 min). There were no significant differences in adverse events between the two groups. During the ESD procedure, desaturation occurred significantly more often in Group E than O (12.9% vs. 4.0%, P = 0.021, odds ratio: 3.53, 95% CI: 1.17-14.4). The recovery time after ESD was significantly longer in Group E than O (180 (100-360) vs. 90 (0-180) min, P < 0.001).

CONCLUSIONS

A decreased desaturation rate and shorter recovery time after ESD were the advantages of sedation in the operation room with propofol compared with sedation in the endoscopy room. These findings warrant further exploration of the advantages of safe and effective ESD for upper gastrointestinal neoplasms in the operation room.

Minimally invasive substernal colonic transposition for corrosive strictures of the upper aerodigestive tract

Corrosive upper aerodigestive tract strictures are conventionally treated by open surgery. Surgical advancements permit these strictures to be addressed with minimal invasion. Corrosive strictures treated minimally invasively over a 2-year period (2014-2015) were audited. Colonic mobilization and retrosternal tunneling were performed laparoscopically. The left colic vessel-based isoperistaltic colonic/ileocolonic segment was transposed substernally into the neck, aided by miniceliotomy. Proximal anastomosis was side-to-side esophagocolic in all patients except those who underwent pharyngolaryngectomy or partial laryngectomy, where pharyngocolic/pyriform fossa-ileal anastomosis was employed. Distal anastomoses were colo-jejunal and colocolic/ileocolic in all the patients. Enteral nutrition and ambulation were commenced on the first postoperative day. Oral nutrition was commenced following a normal contrast swallow on the seventh postoperative day. Patients were followed up on an outpatient basis. Ten adults, aged between 19 and 40 years, were treated for acid-induced strictures. Esophagus and stomach were multiply strictured in all patients. Additionally, duodenum was involved in two patients while pharynx and larynx were strictured in three patients. Two patients underwent pharyngolaryngectomy. One patient underwent partial laryngectomy. The average operative time was 240 minutes (range: 210-300 minutes). The mean blood loss was 150 mL (range: 100-200 mL). One patient (10%) had cervical anastomotic leak on the ninth postoperative day, which was resolved spontaneously. One patient (10%) had proximal anastomotic stricture, requiring dilatation thrice. One patient (10%) had the transient left recurrent laryngeal nerve paresis, which was resolved spontaneously. All the patients are on oral solid diet. The followup ranged from 5 months to 2 years. Minimal access substernal colonic transposition is feasible and efficacious in restoring alimentary continuity in corrosive strictures.

Non-variceal upper gastrointestinal bleeding: Rescue treatment with a modified cyanoacrylate

AIM

To evaluate the safety and efficacy of a modified cyanoacrylate [N-butyl-2-cyanoacrylate associated with methacryloxysulfolane (NBCA + MS)] to treat non-variceal upper gastrointestinal bleeding (NV-UGIB).

METHODS

In our retrospective study we took into account 579 out of 1177 patients receiving endoscopic treatment for NV-UGIB admitted to our institution from 2008 to 2015; the remaining 598 patients were treated with other treatments. Initial hemostasis was not achieved in 45 of 579 patients; early rebleeding occurred in 12 of 579 patients. Thirty-three patients were treated with modified cyanoacrylate: 27 patients had duodenal, gastric or anastomotic ulcers, 3 had post-mucosectomy bleeding, 2 had Dieulafoy’s lesions, and 1 had duodenal diverticular bleeding.

RESULTS

Of the 45 patients treated endoscopically without initial hemostasis or with early rebleeding, 33 (76.7%) were treated with modified cyanoacrylate glue, 16 (37.2%) underwent surgery, and 3 (7.0%) were treated with selective transarterial embolization. The mean age of patients treated with NBCA + MS (23 males and 10 females) was 74.5 years. Modified cyanoacrylate was used in 24 patients during the first endoscopy and in 9 patients experiencing rebleeding. Overall, hemostasis was achieved in 26 of 33 patients (78.8%): 19 out of 24 (79.2%) during the first endoscopy and in 7 out of 9 (77.8%) among early rebleeders. Two patients (22.2%) not responding to cyanoacrylate treatment were treated with surgery or transarterial embolization. One patient had early rebleeding after treatment with cyanoacrylate. No late rebleeding during the follow-up or complications related to the glue injection were recorded.

CONCLUSION

Modified cyanoacrylate solved definitively NV-UGIB after failure of conventional treatment. Some reported life-threatening adverse events with other formulations, advise to use it as last option.

[Study on the association of gastric conduit width and postoperative early delayed gastric emptying in middle-lower esophageal cancer patients undergoing Ivor-Lewis procedure]

OBJECTIVE

To examine the relationship between gastric conduit width and postoperative early delayed gastric emptying (DGE) in patients with middle-lower esophageal carcinoma who underwent Ivor-Lewis operation.

METHODS

Clinical data of 282 consecutive patients with middle-lower esophageal cancer who underwent the Ivor-Lewis operation by same surgical team in our department from January 2013 to June 2015 were retrospectively analyzed. Patients were divided into three groups according to the width of gastric conduit: width > 5.0 cm as broad group (n=93); width 3.0-5.0 cm as moderate group (n=70); width < 3.0 cm as narrow group (n=119). The gastric conduits of patients in narrow group were completely positioned the esophageal bed and fixed to the pericardium posterior wall. None of patients received pyloroplasty or pylorotomy. Perioperative data, operation-associated complications, and postoperative upper gastrointestinal radiographic results(1 week and 4 weeks after operation) were compared among groups.

RESULTS

The baseline data among these groups were comparable in terms of age, gender, tumor TNM staging, pathological types, serum albumin level, and the rate of receiving neoadjuvant therapy(all P>0.05). There were no significant differences in operative time, blood loss, and postoperative hospital stay among groups(all P>0.05). No patients died during perioperative peried. Anastomotic leakage occurred in 2 cases, one from broad group and another from narrow group. The incidences of arrhythmia and postoperative pulmonary complications, including infection, atelectasis, pneumothorax, and pleural effusion were similar among groups (all P>0.05). The average amount of gastric juice drainage in narrow group was (98±57) ml/day, which was markedly lower than that in broad group [(157±62) ml/day, P=0.000] and in moderate group [(123±68) ml/day, P=0.008]. One week after operation, the overall incidence of DGE was 10.6%(30/282), the incidence of DGE in broad, moderate, narrow groups was 17.2%(16/93), 14.3%(10/70), and 3.4%(4/119) respectively, and broad and moderate groups had higher incidence as compared to narrow group (P=0.001 and P=0.006).

CONCLUSION

During the Ivor-Lewis operation, application of a narrow gastric conduit (width < 3.0 cm), which completely position the esophageal bed with fixation to the pericardium posterior wall, can significantly reduce the incidence of postoperative early DGE.

Patient Tolerance of In-Office Pulsed Dye Laser Treatments to the Upper Aerodigestive Tract

INTRODUCTION: Recent advances in technology have facilitated a movement toward unsedated in-office treatment of laryngeal, tracheal, and esophageal lesions. The objective of this study was to determine patient tolerance of inoffice pulsed-dye laser (PDL) treatment of upper aerodigestive tract pathoses via the transnasal esophagoscope.

METHODS: Three hundred twenty-eight unsedated in-office PDL cases were performed at a university-based tertiary referral center in 131 patients. These procedures were performed for various upper aerodigestive pathoses, including recurrent respiratory papillomatosis, chronic granulomas, and recurrent leukoplakia. Eighty-nine subjects completed a phone survey concerning their discomfort level after the PDL procedure. They were also asked specific questions about recovery time, pain medication, and preference of operating room versus inoffice procedures.

RESULTS: The average comfort score was 7.4 (10 being minimal discomfort). Eighty-four percent did not use any pain medication; 87% stated that, if possible, they would prefer to undergo unsedated inoffice procedures rather than surgeries under general anesthesia for further treatment of their upper aerodigestive tract pathosis.

CONCLUSIONS: Unsedated transnasal treatment of upper aerodigestive tract pathoses is readily accepted and well-tolerated by otolaryngology patients. Patients overwhelmingly prefer the inoffice PDL over surgeries under general anesthesia.

Is Follow-Up Endoscopy Necessary in Upper Gastrointestinal Cytomegalovirus Disease?

Gastrointestinal (GI) cytomegalovirus (CMV) disease is a major cause of morbidity and mortality in immunocompromised patients. Diagnosis of GI CMV disease mostly relies on endoscopy examination and histopathologic findings. There are limited data on the need for follow-up endoscopy with histopathologic examination in patients with upper gastrointestinal (UGI) CMV disease. All adult patients with confirmed and probable UGI CMV disease at a tertiary hospital over a 16-year period whose follow-up endoscopy was available were enrolled. The patients were classified as endoscopic responders if they showed complete or partial improvement on follow-up endoscopy, and as endoscopic nonresponders if there was no improvement or worsening. CMV tissue clearance was defined as absence of any visible CMV inclusion bodies, negative CMV immunohistochemistry and negative CMV polymerase chain reaction in follow-up biopsy tissues. During the study period, 77 patients with UGI CMV disease were analyzed. The median time to follow-up endoscopy was 19 days (interquartile range, 14-27). Of these 77 patients, 52 (68%) were classified as responders, and the remaining 25 (32%) as nonresponders. GI bleeding was more common in the nonresponders than the responders (36% vs 12%, respectively; P = 0.02). There was no significant difference in CMV tissue clearance between the responders and nonresponders (56% vs 69%, respectively; P = 0.38), median durations of treatment (20 days vs 21 days, respectively; P = 0.48), and relapse rates (10% vs 8%, respectively; P > 0.99). Multivariate analysis showed that the only independent predictive factor for relapse of CMV antigenemia or CMV GI disease was multiorgan CMV disease (odds ratio = 12.4, 95% confidence interval 1.6-97.9; P = 0.02). Endoscopic responses were obtained in about two-thirds of patients with UGI CMV disease 2 or 3 weeks after antiviral therapy. However, these follow-up endoscopic findings neither reflected CMV tissue clearance nor predicted disease relapse. These findings suggest that the routine follow-up endoscopy may not be warranted in patients with UGI CMV disease.

Neutrophil to lymphocyte ratio as predictor of surgical mortality and survival in complex surgery of the upper gastrointestinal tract

BACKGROUND

Neutrophil-lymphocyte ratio (NLR) has been proposed as a marker of inflammatory response and as a prognostic tool in surgical procedures.

OBJECTIVE

To evaluate the role of high preoperative NLR (> 4.5) as predictor of morbidity and mortality in patients with upper gastrointestinal tract resection, and survival in cancer patients.

METHODS

Retrospective study of patients undergoing upper gastrointestinal tract surgery from 2007 to 2012. Variables associated with morbidity, mortality, and survival were analyzed. Univariate and multivariate analyses were performed. Significance was considered at p < 0.05.

RESULTS

548 patients were included. The most common surgical procedures were Whipple (44.3%) and gastrectomy (30.7%). Surgical morbidity was 40.5% and mortality 6.4%. Factors associated with significant surgical complications were: low body mass index, AJCC stage ≥ III and ASA ≥ III. Factors associated with mortality were older patient age, high NLR, AJCC stage ≥ III, ASA ≥ III, blood transfusion and Charlson > 4. On multivariate analysis, only high NLR and Charlson > 4 remained significant. High NLR was significantly associated with reduced survival in patients with malignant neoplasms (three-year survival 76.1 vs. 65.7%; p = 0.04).

CONCLUSION

High preoperative NLR appears to be a biomarker to predict surgical mortality and survival in patients undergoing complex surgery of the upper gastrointestinal tract.

[Results of the upper digestive tract stenting with self-expanding stents]

The work is based on the analysis of the palliative treatment of 66 patients with malignant upper digestive tract obstruction who underwent implantation of 75 self-expanding metallic stents in the period of 2003-2012 yy. Early postoperative complications developed in 10 (15.2%) cases. Procedure-related complications were observed in 8 (12.1%) patients, non-specific complications occurred in 2 (3.0%) patients. In-hospital lethality was 4.5% (3 patients). 51 patients were followed until death. Symptomatic relapse of obstruction was observed in 4 cases. Median survival was 97 days. Stenting with self-expanding metal stents was concluded to be an effective and safe method of palliation of malignant upper digestive tract stenosis.

Endoscopic video manifolds for targeted optical biopsy

Gastro-intestinal (GI) endoscopy is a widely used clinical procedure for screening and surveillance of digestive tract diseases ranging from Barrett's Oesophagus to oesophageal cancer. Current surveillance protocol consists of periodic endoscopic examinations performed in 3-4 month intervals including expert's visual assessment and biopsies taken from suspicious tissue regions. Recent development of a new imaging technology, called probe-based confocal laser endomicroscopy (pCLE), enabled the acquisition of in vivo optical biopsies without removing any tissue sample. Besides its several advantages, i.e., noninvasiveness, real-time and in vivo feedback, optical biopsies involve a new challenge for the endoscopic expert. Due to their noninvasive nature, optical biopsies do not leave any scar on the tissue and therefore recognition of the previous optical biopsy sites in surveillance endoscopy becomes very challenging. In this work, we introduce a clustering and classification framework to facilitate retargeting previous optical biopsy sites in surveillance upper GI-endoscopies. A new representation of endoscopic videos based on manifold learning, "endoscopic video manifolds" (EVMs), is proposed. The low dimensional EVM representation is adapted to facilitate two different clustering tasks; i.e., clustering of informative frames and patient specific endoscopic segments, only by changing the similarity measure. Each step of the proposed framework is validated on three in vivo patient datasets containing 1834, 3445, and 1546 frames, corresponding to endoscopic videos of 73.36, 137.80, and 61.84 s, respectively. Improvements achieved by the introduced EVM representation are demonstrated by quantitative analysis in comparison to the original image representation and principal component analysis. Final experiments evaluating the complete framework demonstrate the feasibility of the proposed method as a promising step for assisting the endoscopic expert in retargeting the optical biopsy sites.

Management of corrosive injuries of the upper gastrointestinal tract. Our experience in 58 patients

BACKGROUND

The ingestion of caustic substances is one of the most difficult conditions to be treated in Emergency Department.

PATIENTS AND METHODS

The medical records of patients with caustic ingestion and hospitalized from 2003 to 2008 at the Division of General Emergency Surgery with Polyspecialistic Observation of AORN "A. Cardarelli "in Naples, have been revalued.

RESULTS

From 2003 to 2008, 58 patients with caustic ingestion were admitted to our Division. Ten of these patients (17.24%) underwent surgery. Six patients underwent oesophageal and gastric resection with cervical esophagostomy and alimentary digiunostomy in emergency; two underwent exploratory laparotomy, two had gastroenteroanastomosis for antropyloric stenosis. One patient underwent new operation for a complication. In total, three reconstructions of oesophagus with colon were performed . Of the six patients undergoing esofagogastrectomy, two died in the first postoperative day, but four have passed the acute phase.

CONCLUSIONS

There is no universally accepted diagnostic and therapeutic procedure for the management of these patients, who are often left - as it appears in literature - to the personal experience of the surgeon who is dealing with this situation.

Percutaneous management of postoperative bile leaks after upper gastrointestinal surgery

PURPOSE

This study was designed to investigate the benefit of percutaneous interventional management of patients with postoperative bile leak on clinical outcome. Primary study endpoints were closure of the bile leak and duration of percutaneous transhepatic biliary drainage (PTBD) treatment. Secondary study endpoints were necessity of additional CT-guided drainage catheter placement, course of serum CRP level as parameter for inflammation, and patients' survival.

METHODS

Between January 2004 and April 2008, all patients who underwent PTBD placement after upper gastrointestinal surgery were analyzed regarding site of bile leak and previous attempt of operative bile leak repair, interval between initial surgery and PTBD placement, procedural interventional management, course of inflammation parameters, duration of PTBD therapy, PTBD-related complications, and patients' survival.

RESULTS

Thirty patients underwent PTBD placement for treatment of postoperative bile leaks. In 12 patients (40%), PTBD was performed secondary to a surgical attempt of bile leak repair. Additional percutaneous drainage of bilomas was performed in 14 patients (47%). CRP serum level decreased from 138.1 ± 73.4 mg/l before PTBD placement to 43.5 ± 33.4 mg/l 30 days after PTBD placement. The mean duration of PTBD treatment was 55.2 ± 32.5 days in the surviving patients. In one patient, a delayed stenosis of the bile duct required balloon dilation. Two PTBD-related complications (portobiliary fistula, hepatic artery aneurysm) occurred, which were successfully treated by embolization. Overall survival was 73% (22 patients).

CONCLUSIONS

PTBD treatment is an effective therapy. PTBD treatment and additional CT-guided drainage of bilomas helped to reduce intraabdominal inflammation, as shown by reduction of inflammation parameters.

[Endoscopic diagnostics and treatment of submucous tumors of the upper gastrointestinal tract]

The endoscopic ultrasonography (EUS) is considered to be the leading method of diagnostic of the submucous gastrointestinal tumors. Results of diagnostics and treatment of submucous tumors of the upper gastrointestinal tract in 38 patients were analyzed. EUS was performed in 37 (97,4%) of patients, which allowed to detect the origin, size and localization of the tumor. The differential diagnostic algorithm was suggested together with certain indications for various surgical treatment modalities. Thereby, endoscopic ablation is reasonable when the tumor invades not deeper than muscle plate of mucosa or the submucose layer. Laparoscopic full-layer resection of the organ wall is necessary when the tumor invades the muscle layer. Larger tumors or those of any size, but with preoperative signs of high malignancy must be eradicated through laparotomy, meeting all principles of oncology.

[Risk factors associated with failure from endoscopic therapy in acute non-variceal upper gastrointestinal bleeding]

OBJECTIVE

To determine risk factors associated with failure of endoscopic therapy in acute non-variceal upper gastrointestinal bleeding (ANVUGIB ).

METHODS

This was a retrospective cohort study of 223 patients admitted to Peking University Third Hospital between 1 January 2005 and 31 December 2009, with acute non-variceal upper gastrointestinal bleeding. Data on clinical presentation, laboratory test, endoscopic findings, and treatment outcomes were collected. Risk factors for treatment failure were identified using multivariable Logistic regression with backward selection.

RESULTS

Therapeutic failure rate was 19.3%(43/223). In univariate analysis, the two groups had significant difference in age, history of gastrointestinal bleeding, ASA, shock, haemoglobin level, Hct, PLT, time of endoscopic treatment, gastric ulcer, duodenal ulcer, lesion size and active spurting of blood. Multivariate Logistic regression analysis revealed that shock [odds ratio (OR) 3.058, 95% confidence interval (CI) 1.295-7.221], history of gastrointestinal bleeding (OR 2.809, 95% CI 1.207-6.539), PLT>100×10⁹/L (OR 0.067, 95% CI 0.009-0.497), active spurting of blood (OR 10.390, 95% CI 2.835-38.080) and lesion size≥2.0 cm (OR 7.111, 95% CI 1.628-31.069) were risk factors associated with failure of endoscopic therapy. The number of comorbidities>1 (OR 9.580,95%CI 1.383-66.390) and active spurting of blood (OR 9.971, 95% CI 1.820-54.621) were factors related with need for surgical intervention or death.

CONCLUSION

Patients with shock, history of gastrointestinal bleeding, PLT<100×10⁹/L, active spurting of blood and large lesion size, have high risks for continued bleeding or rebleeding after endoscopic treatment. These patients may be more likely to benefit from aggressive post-hemostasis care.

Stenting of the upper gastrointestinal tract: current status

Minimally invasive image-guided insertion of self-expanding metal stents in the upper gastrointestinal tract is the current treatment of choice for palliation of malignant esophageal or gastroduodenal outlet obstructions. A concise review is presented of contemporary stenting practice of the upper gastrointestinal tract, and the procedures in terms of appropriate patient evaluation, indications, and contraindications for treatment are analyzed, along with available stent designs, procedural steps, clinical outcomes, inadvertent complications, and future technology. Latest developments include biodegradable polymeric stents for benign disease and radioactive or drug-eluting stents for malignant obstructions.

Retrospective review of surgical management of foreign body ingestion

Endoscopic examination and removal of foreign body under general anaesthesia are recommended for persistent symptomatic patient with or without significant findings on radiological examination. This report evaluates the management outcome of surgical removal of foreign body ingestion in upper gastrointestinal tract. A total of 70 cases with full documentation were reviewed retrospectively from June 1998 until December 2007. There were 32 male and 38 female with age range from 6 months to 87 years old (mean: 36.9 years). Sixty five patients (93%) were adults and 15 (7%) were below 13 years. Fish bones were the most common foreign body found (44.3%). Radiologically, foreign bodies were highly suspicious in 51 cases (76.1%). Intraoperatively, thirty six cases (70.6%) were positive. From 16 cases (23.9%) with normal radiograph, 10 cases (62.5%) were found to have foreign bodies. Therefore the plain radiograph is helpful, but clinical presentation is more reliable to determine surgical removal under general anaesthesia.

Role of nitrites in the genesis of adenocarcinoma associated with Barrett's esophagus

BACKGROUND

Barrett's esophagus (BE) is one of the complications of gastroesophageal reflux disease (GERD) and a premalignant condition. It consists of a process of replacement of the squamous epithelium of the esophagus by intestinal columnar epithelium containing goblet cells, known as specialized intestinal metaplasia with goblet cells, and several factors have been related to its pathogenesis. The objective of this study was to evaluate an experimental model of duodenogastroesophageal reflux and the effect of ingestion of sodium nitrite solution on the genesis of adenocarcinoma associated with Barrett's esophagus.

MATERIALS AND METHODS

Sixty male Wistar rats were divided into four groups. Twenty were not submitted to surgery and served as controls (10 animals ingesting only water and 10 ingesting water plus a solution of sodium nitrite), while the remaining 40 animals were submitted to side-to-side duodenogastroesophageal anastomosis (20 animals ingesting only water and 20 ingesting water plus the sodium nitrite solution). The Vienna classification for dysplasia and adenocarcinoma was used in the analysis of results.

RESULTS

After 42 weeks of observation, Barrett's esophagus was found in 26.3% (5/19) of the animals submitted to surgery that had not ingested nitrites compared to 72.3% (13/18) of the animals in the group submitted to surgery and given nitrites. Six cases of adenocarcinoma (33.3%) were also found in this latter group. Barrett's esophagus was not found in any of the animals that were not submitted to surgery. Categories 2, 3 and 5 of the Vienna classification were only found in the animals submitted to surgery that also received sodium nitrite (66.7%).

CONCLUSION

The ingestion of sodium nitrite associated with duodenogastroesophageal reflux plays an important role in the genesis of adenocarcinoma associated with Barrett's esophagus.

[Isoperistaltic endoluminal drainage (IED) in the surgical treatment of upper digestive tract dehiscence]

Dehiscence of upper gastrointestinal sutures still remains a severe clinical problem and often requires complex surgical repair. Despite its multifactorial aetiopathogenesis, endoluminal pressure seems to play an important role in the onset and maintenance of this complication. The efficacy of isoperistaltic endoluminal drainage (IED) in the operative treatment or prevention of upper gastrointestinal surgical dehiscence was assessed in a retrospective study. The IED procedure is obtained by means of a two-way nasogastric tube inserted in the proximal jejunum through the abdominal and advanced to the site of the leak in order to achieve low endovisceral pressure, normal intestinal free flow downstream of the lesion and monitoring of the healing process. Over the past decade 31 patients (mean age 62 years; 52.9% male) with postoperative dehiscences of the thoraco-abdominal oesophagus, stomach or duodenum underwent reintervention. During the surgical repair an IED was inserted in 17, while no IED was inserted in 14 (NOIED): the two groups were well matched for age, gender, primary pathology, site and type of leak. The overall operative mortality (30 days) was 16% (12.5% IED vs. 20% NOIED), and morbidity was 45% (37.5% IED vs. 53.3% NOIED). The rate of leak relapse was significantly different: 6% IED vs. 20% NOIED. In the last 5 years the IED procedure has also been used preventively with promising outcomes in another 16 other high-risk upper gastrointestinal suture patients. The results of this retrospective study appear to support the use of the IED procedure to minimize the risk of failure of the suture/anastomosis in upper gastrointestinal surgery. Other studies are needed to validate the efficacy of this supplementation of surgical treatment.

Endoscopic management of foreign body in the upper gastrointestinal tract: a tertiary care center experience

BACKGROUND

Foreign body (FB) in the upper gastrointestinal tract (UGIT) is a common clinical problem in endoscopic practice. At present, many physicians recommend endoscopy for both diagnosis and treatment. To date, few have report endoscopic findings and management of FB in UGIT.

OBJECTIVE

To report the authors' experience and outcome of the endoscopic management of foreign body ingestion at Siriraj Hospital.

MATERIAL AND METHOD

Medical records of patients with FB ingestion in the UGIT, who underwent endoscopic management between January 2004 and January 2008 at Siriraj Hospital, were reviewed.

RESULTS

The analysis included 34 patients of which 58.82% were men. The mean age of the group was 18.26 years (range 10 months - 86 years). 58.82% of patients were younger than 5 years. Esophagogastroduodenoscopy (EGD) was performed in 100% of cases, under general anesthesia (GA) in 85.29%, and under transintravenous anesthesia (TIVA) in 14.71%. Endoscopic management was successful in all cases. The extractions were done with rat-tooth forceps, polypectomy snare, dormia basket, or tripods. There were no procedure related complications.

CONCLUSION

The ingested FB varied widely according to the underlying medical condition and age. In a tertiary care center endoscopic removal of FB in UGIT could be safely performed with a very good result.

Emergency pancreatoduodenectomy (whipple procedure) for massive upper gastrointestinal bleeding caused by a diffuse B-cell lymphoma of the duodenum: report of a case

We herein report a rare case of a massive upper gastrointestinal (GI) bleeding, caused by high-grade diffuse B-cell lymphoma of the duodenum, secondary to immunoproliferative small intestinal disease (IPSID) and treated with an emergency partial pancreatoduodenectomy. A 42-year-old man was admitted to our hospital because of hematemesis. Upper GI endoscopy was unrevealing because of the copious bleeding. Initially, the patient underwent conservative treatment, thus resulting in the temporary cessation of the bleeding. Later, the hemorrhage massively relapsed. An urgent abdominal ultrasound raised the suspicion of a large, possibly bleeding, neoplasm of the duodenum, which was finally confirmed by abdominal computed tomography. The patient underwent an emergency laparotomy, during which a partial pancreatoduodenectomy was performed (Whipple procedure). Histologically, the tumor was a high-grade B-cell lymphoma of the duodenum. The nearby small intestinal mucosa was suggestive of IPSID. A massive upper GI hemorrhage from a high-grade B-cell non-Hodgkin lymphoma of the duodenum, which develops secondary to IPSID, is a very rare clinical demonstration of this disease. Our case is one of the few reports in the English literature, for which the Whipple procedure has been performed as a curative treatment.

ENDOSCOPIC MANAGEMENT OF NON-VARICEAL UPPER GASTROINTESTINAL HAEMORRHAGE

Endoscopy plays a central role in the diagnosis and treatment of non-variceal upper gastrointestinal haemorrhage. Advances in endoscopic techniques, supported by an increasing body of high quality data, have rendered endoscopy the first-line diagnostic and therapeutic intervention for the patient presenting with an upper gastrointestinal haemorrhage. However, endoscopic intervention must be considered in the context of the overall management of the bleeding patient, often with significant comorbidities. Although parameters such as hospitalization duration, transfusion requirements and surgery rates have improved with advances in endoscopic therapy, mortality rates remain relatively static. This review addresses the current status of endoscopic intervention for non-variceal upper gastrointestinal haemorrhage. Additionally, an overview of important periprocedural management issues is presented.

Management of acute upper gastrointestinal bleeding in a district hospital

BACKGROUND

This study was conducted to assess the management of acute upper gastrointestinal bleeding in a district hospital and to compare these results with national guidelines and the published literature.

MATERIALS AND METHODS

This prospective and retrospective study included 112 patients, mean age 66 years, who presented with acute upper gastrointestinal bleeding between July 2004 and February 2005. All patients were assigned a Rockall risk assessment score.

RESULTS

The surgical on-call teams managed all the patients according to an agreed protocol. Forty-nine patients had a Rockall score > or =4. Endoscopy was performed in all patients, with 60% accomplished within the first 24 hours. The most common cause found was peptic ulcer (30%). Therapeutic endoscopy was undertaken in 10 patients (9%) with a success rate of 70%. Open surgery was performed in 3 patients. One patient died after having surgery and the Rockall score was >5. Of the patients admitted with acute upper gastrointestinal bleeding, 90.2% were discharged without complication. Eleven patients died (9.8%) and all of them from the high risk group with Rockall scores > or =5. Their mean hospital stay was 17.8 days (range, 2-43 days).

CONCLUSION

High-standard results in acute upper gastrointestinal bleeding can be achieved in a district hospital. The management, including the use of the operating theater facilities with operative and anesthetic support, was safe and efficient. A 24-hour-a-day endoscopy service is important to achieve early diagnosis and to plan management. A protocol and early endoscopy improve clinical outcome and reduce mortality, which occurred mostly among elderly patients with high risk scores. It is advisable to introduce the Rockall scoring system in practice.

The importance of process issues as predictors of time to endoscopy in patients with acute upper-GI bleeding using the RUGBE data

BACKGROUND

Early endoscopy has been shown to improve outcomes and optimize cost-effectiveness in nonvariceal upper-GI bleeding (NVUGIB). However, there is little information regarding clinical and process determinants that affect the time from onset of bleeding to performance of the endoscopy.

OBJECTIVE

The aim of this study was to identify factors that predict time to endoscopy in patients with new onset NVUGIB.

DESIGN

Linear regression models were constructed with time between triage (outpatients) or onset of bleeding (inpatients) and the performance of endoscopy.

SETTING

The RUGBE is a nationwide, multicenter database collected for the purpose of obtaining descriptive data on patients with NVUGIB.

PATIENTS

The study population consisted of 1500 patients (89.6%) who underwent gastroscopy within 48 hours.

RESULTS

Median time to endoscopy was 12 hours (95% CI 11.0, 13.0). Endoscopy after working hours (regression coefficient [beta] -3.52; 95% CI -5.47, -1.58), availability of an endoscopy nurse on-call for the procedure (beta -2.48; 95% CI -3.83, -1.14), and admission to a hospital unit were associated with a shorter interval to endoscopy. In contrast, the presence of chest pain (beta 3.65; 95% CI 1.64, 5.67) or dyspnea (beta 2.79; 95% CI 1.10, 4.48), absence of gross blood on rectal examination (beta 2.20; 95% CI 0.69, 3.71), and inpatient status at onset of bleeding (beta 14.6; 95% CI 8.70, 20.4) were independent predictors of a delayed endoscopy. Subgroup analysis showed that actual time intervals as well as independent predictors of time until endoscopy differed between inpatients and outpatients.

LIMITATIONS

Retrospective analysis.

CONCLUSIONS

The timing of endoscopy in patients with NVUGIB is dependent on both clinical and process parameters, which differ between inpatient and outpatient settings. They bear implications with regards to shaping practice and deciding on resource allocation in order to facilitate an early endoscopy, which is currently recommended for improved patient outcomes.

Corrosive injury to upper gastrointestinal tract: Still a major surgical dilemma

In the developed and developing countries, corrosive injury to the gastrointestinal system as a consequence of either accidental ingestion or as a result of self-harm has become a less common phenomenon compared to decades ago. This could partly be attributed to the tighter legislation imposed by the government in these countries on detergents and other corrosive products and general public awareness. Most busy upper gastrointestinal surgical units in these countries, especially in the developed countries will only encounter a small number of cases per year. Up to date knowledge on the best management approach is lacking. In this article, we present our experience of two contrasting cases of corrosive injury to the upper gastrointestinal tract in our thoracic unit in the last 2 years and an up-to-date Medline literature search has been carried out to highlight the areas of controversies in the management of corrosive injuries of the upper gastrointestinal tract. We concluded that the main principle in managing such patients requires a good understanding of the pathophysiology of corrosive injury in order to plan both acute and future management. Each patient must be evaluated individually as the clinical picture varies widely. Signs and symptoms alone are an unreliable guide to injury.

Laser therapy and surgical treatment in transfusion-dependent patients with upper-gastrointestinal vascular ectasia

We report the results of endoscopic laser therapy on 59 patients with upper gastrointestinal vascular ectasia. After 300 sessions, complications were two nonbleeding and three bleeding ulcers, treated successfully with endoscopic therapy. After treatment, blood transfusions were abolished in 61% and reduced in 22% of the patients, whereas 17% of the patients were nonresponders and 5% died for bleeding. Treatment outcome correlated with endoscopic healing, number of yearly transfusions, and lesions' localization. Patients, who did not respond to laser therapy by the sixth session, showed no improvement afterwards. Four patients with persistence of bleeding despite laser therapy underwent surgery and in three of them, a long-term control of bleeding was obtained. In conclusion, laser therapy was safe and effective; nonetheless, surgical treatment should be considered, after adequate staging, for those patients receiving more than 10 blood units per year or who have undergone more than six laser sessions without improvement.

Safety and efficacy of a new high power argon plasma coagulation system (hp-APC) in lesions of the upper gastrointestinal tract

BACKGROUND

The aim of this study was to analyze safety and efficacy of a new high power argon plasma coagulation system in the upper gastrointestinal tract.

METHODS

Data of 215 patients treated with a high power argon plasma coagulation system in the upper gastrointestinal tract 04/2003-01/2004, using a VIO APC device (VIO 300 D with APC 2; Erbe Elektromedizin, Tübingen, Germany; pulsed argon plasma coagulation, 20-120 W), were reviewed and analyzed. Indications were as follows: additive ablation therapy in curative treatment of early Barrett's cancer (122 patients); palliative treatment of oesophageal cancer (n=27); gastric adenoma/carcinoma (n=19); Zenker's diverticulum (n=8); and other. In 190/215 patients (149 males; mean age 67 years), the data were completely analyzable. Minor and major complications were evaluated.

RESULTS

Minor complications (odynophagia, pain, fever) occurred in 24/277 sessions (8.7%); major complications (stenosis) in 3/277 sessions (1.1%) using at least 50 W. No perforation or bleeding occurred. The mean number of treatment sessions required was 1.46 (1-7); in the palliative treatment of oesophageal cancer, it was 2.5 (1-5).

CONCLUSIONS

The high power argon plasma coagulation system was effective and safe in various gastrointestinal conditions. Due to it's high effectiveness and a low number of sessions required in tumour debulking, this high power argon plasma coagulation system might be used as an alternative to Nd:YAG laser.

Upper gastrointestinal tract obstruction due to congenital duodenal diaphragm

The presence of incomplete upper gastrointestinal obstruction in childhood is a rare condition and usually indicates congenital anomaly. We reported a case of incomplete duodenal obstruction in a 16-year-old girl due to a congenital duodenal diaphragm. A duodenal diaphragm with an eccentric aperture was found by upper gastrointestinal series and endoscopic examination in the second part of the duodenum. The patient made an uncomplicated recovery with relief of the symptoms after duodenotomy and excision of the diaphragm. This case underlines that congenital duodenal diaphragm should be kept in mind as a possibility whenever chronic obstruction of the duodenum in childhood is diagnosed. The prognosis of congenital duodenal diaphragm is usually good after excision of the diaphragm, when not associated with other congenital anomalies.

[Acute upper gastrointestinal tract haemorrhage: tactics and treatment]

Haemorrhage due to upper digestive tract diseases is one of the major complications and is relatively common. The cause for haemorrhage depend on the main disease and in many cases has complicated mechanism. The frequency is 100 cases over 100 000 people. There is no proven alternative to the surgical treatment. The issue with second time haemorrhage is controversial. The goal of every surgeon, when dealing with haemorrhage from upper digestive tract, especially with patient with bleeding ulcer, is surgical treatment, when conservative and endoscope treatment have failed. Every patient with bleeding stomach or duodenal ulcer should undergo FGS for Forrest haemorrhage demonstration, endoscope haemostasis and HP examination. Eradication should be applied to every HP positive patient for haemorrhage prevention.

Percutaneous gastrostomy in patients with complete obstruction of the upper digestive tract

Gastrostomy for nutritional support can be performed radiologically when endoscopic technique is not possible. In patients with complete obstruction of the upper digestive tract, the radiological technique in its conventional method may not be possible, as insertion of naso-gastric tube for gastric insufflation is not always successful. We reviewed our experience of gastrostomy insertion in nine such patients after failure of the conventional method. In seven of the nine patients, initial gastric puncture was achieved with a 22G needle under direct ultrasound visualisation. In the remaining two patients, initial puncture was made into locules of gas in the stomach with fluoroscopy. The stomach was then distended with air and a gastrostomy tube inserted by conventional technique. We conclude that percutaneous gastrostomy can be undertaken safely even in the presence of complete obstruction of the upper digestive tract and recommend this technique in this selective group of patients.

Low Utility of Endoscopy for Suspected Upper Gastrointestinal Bleeding Occurring in Hospitalized Patients

OBJECTIVES

To determine the clinical utility of upper endoscopy in patients who have upper gastrointestinal bleeding after hospitalization.

METHODS

Patients were studied who underwent upper endoscopy for an indication of suspected upper gastrointestinal bleeding that developed more than 48 hours after hospitalization. Demographic, clinical, and endoscopic data were extracted by chart review. Bleeding was characterized as clinically important (defined as overt bleeding in association with hemodynamic compromise or the need for blood transfusion) or non-clinically important.

RESULTS

Eighty-six patients met inclusion criteria. Clinically important bleeding occurred in 17%. Peptic ulcer disease and gastritis were the most common sources of bleeding in the clinically important and non-clinically important groups, respectively. The bleeding source was not found in 24% of patients. Endoscopic therapy was required in 11% (all of whom had clinically important bleeding). Upper endoscopy prompted no treatment changes in the non-clinically important bleeding group.

CONCLUSIONS

Endoscopic therapy was needed only in the few patients with clinically important bleeding. Nonendoscopic treatment can be recommended for upper gastrointestinal bleeding developing in hospitalized patients who do not meet established criteria for a clinically important bleed.

Efficacy of argon plasma coagulation in nonvariceal upper gastrointestinal bleeding

BACKGROUND AND STUDY AIMS

Various methods of endoscopic hemostasis have been described. However, few reports have investigated the efficacy of argon plasma coagulation (APC) in the treatment of upper gastrointestinal bleeding. The aim of this study was to evaluate the efficacy of APC in various types of upper gastrointestinal bleeding.

PATIENTS AND METHODS

The present study was designed as a prospective and observational study. A total of 254 consecutive patients with upper gastrointestinal bleeding (excluding variceal bleeding) were primarily treated using APC. If it was difficult to achieve complete hemostasis with APC alone, injection of a hypertonic saline-epinephrine solution and clipping were carried out. The initial hemostasis rate, rate of recurrent bleeding after APC, permanent hemostasis rate, and mean procedure time were evaluated.

RESULTS

Initial hemostasis with APC alone was achieved in 193 of the 254 patients (75.9 %). With the assistance of other methods as well, initial hemostasis was achieved in 253 patients (99.6 %). Among the 193 patients treated with APC alone, recurrent bleeding was observed in 11 cases (11 of 193, 5.7 %). With one exception, these cases of recurrent bleeding were controlled with APC alone again; permanent hemostasis was thus ultimately achieved with APC alone in 192 of the 254 patients (75.5 %). The mean procedure time was 8 min. No complications (such as perforation) were observed with the APC treatment.

CONCLUSIONS

These data indicate that APC is a safe, quick, and effective method of treating various types of nonvariceal upper gastrointestinal bleeding and that it can be a powerful tool for endoscopic hemostasis.

[Endoscopy of the upper gastrointestinal tract]

Esophagogastroduodenoscopy (EGD) has replaced X-ray diagnosis as the standard method for assessment of the upper gastrointestinal tract. It also offers an array of minimally invasive treatment options. This contribution presents the requisite medical, technical, and human resources needed for EGD. The indication for this invasive procedure should always be carefully reviewed and contraindications excluded. EGD should be performed according to standardized procedures and well documented by noting distinctive features of peristalsis and describing alterations of mucosal size and surface texture. The endoscopic techniques of biopsy, chromoendoscopy, and percutaneous endoscopic gastrostomy should always be available in routine endoscopy.

Use of a newly designed multifunctional coil catheter for stent placement in the upper gastrointestinal tract

PURPOSE

To evaluate the usefulness of a newly designed multifunctional coil catheter for stent placement in patients with upper gastrointestinal tract strictures.

MATERIALS AND METHODS

Constructed in our research laboratory, the coil catheter was used in 202 consecutive patients with malignant (n = 191) or corrosive (n = 11) upper gastrointestinal tract strictures. The coil catheter was made of a stainless-steel coil (1.3-mm inner diameter, 1.8-mm outer diameter), a 0.4-mm nitinol wire, a polyolefin tube, and a hemostasis valve. Usefulness of the coil catheter was evaluated based on whether the coil catheter could pass the stricture over a guide wire and whether measurement of the stricture length was possible while the guide wire was in place.

RESULTS

The passage of the coil catheter over a guide wire beyond the stricture was technically successful and well tolerated in 199 of 202 patients (99%). Negotiation of a guide wire or a coil catheter through the stricture of the stomach (n = 2) or duodenum (n = 1) under fluoroscopic guidance failed in three patients. In two of these three patients, it was possible to negotiate a guide wire and a coil catheter under combined endoscopic and fluoroscopic guidance; it was not possible in the third. There were no procedure-related complications.

CONCLUSION

The newly designed multifunctional coil catheter is useful in stent placement in patients with upper gastrointestinal tract strictures.

Laparoscopic gastrectomy with regional lymph node dissection for upper gastric cancer

Recently, a minimally invasive operation for gastric malignancies has been developed, and this laparoscopic operation is seen as a technique that will raise quality of life for patients. Previously, we reported this technique, as well as the results of a distal gastrectomy with regional lymph node dissection using hand-assisted laparoscopic surgery (HALS) for gastric cancer located in the middle or lower third of the stomach. This paper describes total or proximal gastrectomy with regional lymph node dissection by HALS on 28 cases of gastric cancer located in the upper portion of the stomach. After the mobilization of stomach and lymph node dissection via HALS, an anastomosis of the esophagus was performed intracorporeally with a conventional circular stapling device (PCEEA), whereas jejunojejunostomy and jejunogastrostomy were carried out extracorporeally with a conventional hand-sewn procedure through a HALS wound. The operation time and the amount of blood loss in all the patients were considered to be satisfactory, and the average number of dissected lymph nodes per patient was similar to that in open surgery. The patients had minimal morbidity and quick recovery after their operation. This technique was thought to be not only less invasive, but also similarly curative compared with open gastrectomy.

Complications of endoscopy of the upper gastrointestinal tract: a single-center experience

OBJECTIVE

To evaluate prospectively the complications that occurred during consecutive endoscopies of the upper gastrointestinal tract.

PATIENTS AND METHODS

We evaluated all endoscopies of the upper gastrointestinal tract (except endoscopic retrograde cholangiopancreatography and endosonography) performed at the Ambulatory Surgical Center at the Mayo Clinic in Jacksonville, Fla, between January 1999 and June 2002. A staff gastroenterologist with or without a trainee performed these procedures. Therapeutic procedures included esophageal band ligation, injection sclerotherapy, botulinum toxin injection, extended upper endoscopy, pneumatic balloon dilation, endoscopic mucosal resection, and endoscopic ablation using thermal laser, argon beam coagulator, or photodynamic therapy. All complications were tabulated prospectively as per mandatory state licensure reporting.

RESULTS

Complications after diagnostic endoscopy of the upper gastrointestinal tract were related to anesthesia in 2 of the 12,841 patients. Perforations in 5 patients were associated with esophageal dilation (2), resection of duodenal lesions (2), or passage of a side-viewing instrument into the duodenum (1). No deaths occurred.

CONCLUSIONS

Diagnostic endoscopy of the upper gastrointestinal tract is safe, with a complication rate of less than 1 per 5000 cases. Therapeutic endoscopy increases the risk of complications. Compared with complication rates published previously, our results from a single center indicate a favorable reduction in complications related to endoscopy of the upper gastrointestinal tract.

Routine second look endoscopy: ineffective, costly and potentially misleading

Despite the best medical and endoscopic efforts, some patients with nonvariceal upper gastrointestinal bleeding suffer recurrences. Because high risk stigmata (visible vessels, active bleeders and adherent clots) often persist despite apparently successful initial hemostasis and have a variable natural history, it would seem reasonable to at least consider a routine second look endoscopy. However, a review of the literature revealed six randomized trials that, in aggregate, do not support such a strategy. In fact, a second look does not appear to be effective and is associated with an increased number of procedures, treatment sessions and possibly retreatment-related complications. In addition, the cointerventions in these trials are already out of date and the potential absolute risk reductions are low when a second look is used with intravenous proton pump inhibitors and/or the application of endoscopic hemoclips or combination endoscopic therapy. Finally, the Forrest classification may provide dangerously misleading estimates of prognosis because it is being used out of context. This review critically analyzes routine second look endoscopy.