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At least 361 records · Page 20Linked to original sources

Endoscopic Doppler ultrasound versus endoscopic stigmata-directed management of acute peptic ulcer hemorrhage: a multimodel cost analysis.

Recurrent bleeding from acute peptic ulcer hemorrhage is problematic. Studies have shown that Doppler ultrasound (DOP-US) is useful in decreasing rebleeding. We analyzed associated costs and outcomes to better define the role of DOP-US versus Conventional (Forrest classification endoscopic stigmata) in the management of acute peptic ulcer bleeding. Two separate decision analyses were constructed. Recurrent bleeding, failed esophagogastroduodenoscopy (EGD) hemostasis, complications, and surgery rates were derived from medical literature. Costs were based on Medicare data. DOP-US is preferred over Conventional in acute peptic ulcer bleeding with average cost savings per patient ranging from 853 dollars (decision-tree modeling) to 1,160 dollars (Monte Carlo simulation). High-dose intravenous proton-pump inhibitors lowered rates of recurrent bleeding for both Conventional and DOP-US, resulting in a lower but still persistent average cost savings per patient for DOP-US (decision-tree modeling = 328 dollars, Monte Carlo simulation = 560 dollars). This decision analyses identified DOP-US as the preferred cost-minimizing strategy in acute peptic ulcer hemorrhage. Results of cost analyses were most dependent on hospitalization costs and recurrent bleeding rates.

Acute Disease↗

Endoscopic ultrasonography classification of gastric varices in patients with cirrhosis. Comparison with endoscopic findings.

Endoscopic ultrasonography was performed in 80 cirrhotic patients and 50 control subjects. The aim of the study was to describe and classify the vascular abnormalities of the gastric wall as observed on echoendoscopy in cirrhotic patients and to compare the data with endoscopy. The size of gastric varices was classified into 3 grades: grade 0 (none), grade 1 (small or non-confluent varices < 5 mm), grade 2 (large or confluent varices > or = 5 mm). The abnormalities of the gastric wall were classified into 3 grades: 0 (none), grade 1 (thickening and brilliance of the third hyperechogenic layer with or without fine internal anechogenic structures), grade 2 (visible vessels in the third layer which deform the entire wall, with penetrating varices). Endoscopy provides better visualization of esophageal varices than echoendoscopy but does not detect gastric varices and the first signs of portal hypertension as well. In conclusion echoendoscopy should be a routine examination for screening portal hypertension in cirrhotic patients and could be used in therapeutic follow-up.

Digestive System↗

Does endoscopic laser ablation of the prostate stand the test of time? Five-year results from a multicentre randomized controlled trial of endoscopic laser ablation against transurethral resection of the prostate.

OBJECTIVE: To determine the long-term objective and subjective outcome of patients with benign prostatic enlargement (BPE) treated by endoscopic laser ablation of the prostate (ELAP), as part of a multicentre randomized controlled trial of ELAP against TURP. PATIENTS AND METHODS: Initially, 151 patients with BPE were randomized to undergo either ELAP or TURP, starting in March 1992. ELAP was performed using the Urolasetrade mark fibre (Bard, Covington, GA, USA) in conjunction with a Nd:YAG laser source. All patients who had originally participated in the study were approached 5 years later to obtain a urological history, American Urological Association (AUA) symptom score and two measurements of urinary flow rate, with an ultrasonographic assessment of the postvoid residual urine volume (PVR). RESULTS: The mean duration of follow-up was 61 months; 109 patients were traced, comprising 69 who were alive and well, and had undergone no further bladder outlet surgery, 26 who had required revision surgery, 12 who were dead or terminally ill and three who had dementia. Both ELAP and TURP produced sustained improvements in mean AUA score, maximum flow rate and PVR, with respective values at 5 years of 6.3, 17.8 mL/s and 76 mL, and 6.5, 20.0 mL/s and 55 mL. Eighteen of 47 ELAP patients (38%) and eight of 51 (16%) TURP patients underwent revision surgery within the follow-up. CONCLUSION: ELAP and TURP produced similar subjective and objective outcomes at 5 years. The re-operation rate after ELAP was more than double that after TURP and suggests that ELAP should not be used routinely in the management of men with BPE.

Endoscopy↗

Endoscopic sclerosis versus cyanoacrylate endoscopic injection for the first episode of variceal bleeding: a prospective, controlled, and randomized study in Child-Pugh class C patients.

BACKGROUND AND STUDY AIMS: Despite the recognized efficacy of sclerotherapy and elastic band ligation in controlling variceal hemorrhage, the results of endoscopic treatment in Child-Pugh class C patients remain poor. The aim of this prospective, controlled, and randomized study was to compare conventional sclerotherapy with injection of the tissue adhesive N-butyl-2-cyanoacrylate in controlling the first episode of rupturing of esophageal varices. PATIENTS AND METHODS: From January 1994 to June 1997, 36 consecutive Child-Pugh class C cirrhotic patients were admitted with an initial episode of esophageal variceal bleeding. They were randomly assigned to receive sclerotherapy with a 3% ethanolamine oleate solution (group 1, 18 patients) or injection of tissue adhesive (group 2, 18 patients). Episodes of recurrent bleeding were managed after the randomization procedure. After bleeding had been controlled, patients in both groups received weekly sessions of conventional sclerotherapy to eradicate any remaining esophageal veins. RESULTS: The patients in the two treatment groups had similar characteristics on entry into the study. More than 80% of the patients were admitted with moderate or severe hemorrhage. Approximately half of them presented with active bleeding during the index endoscopy. Early recurrent bleeding was observed in ten of the 18 patients in group 1 (55.6%) and in two of the 18 in group 2 (11.1%; P = 0.01). The hospital mortality rates were 72.2% in group I and 33.3% in group II (P = 0.04). CONCLUSION: These findings support the view that cyanoacrylate injection is superior to conventional sclerosis for controlling esophageal variceal bleeding in Child-Pugh class C patients. It is also highly probable that the better bleeding control achieved using the cyanoacrylate tissue adhesive treatment led to a lower hospital mortality rate.

Adult↗

Use of endoscopic ultrasound-guided injection in endoscopic resection of solid submucosal tumors.

AIMS: Submucosal tumor (SMT) is a common disease. We used endoscopic ultrasound (EUS)-guided puncture to inject saline before resection of SMTs, and evaluated the usefulness of this method. PATIENTS AND METHODS: We selected 16 symptomatic patients with solid SMTs in the upper gastrointestinal tract, confirmed by endoscopy and EUS. We first used EUS-guided puncture to inject saline to separate the submucosal lesions from the deeper normal tissues. Lesions in the muscularis mucosa and submucosa were then removed directly by snare cauterization. Lesions in the muscularis propria were treated by means of a two-step approach: first, we incised the superficial tissue of the tumors using an electrosurgical needle, and second, we enucleated SMTs as much as possible by tightening the snare around them and creating pseudo-stalks. After snare excision of SMTs, the cleavages of the superficial tissues were closed using metal clips. RESULTS: Among the 16 patients, one lesion was in the muscularis mucosa, six were in the submucosa, and nine were in muscularis propria. All the lesions were resected thoroughly. No perforation occurred nor had any recurrences been observed at follow-up of 12 - 17 months. CONCLUSIONS: EUS-guided puncture to inject saline before resection is a safe and accurate procedure in the treatment of submucosal tumors.

Adult↗

[The clinical picture of endoscopically treated extrauterine pregnancy. Postoperative follow-up of 677 endoscopically operated extrauterine pregnancies 1983-1993].

677 ectopic pregnancies were treated by laparoscopy from 1983-1993. Complications in 26 cases led to a second laparoscopic intervention; these complications are analysed to access the advantages and risks of this new procedure. The postoperative HCG blood levels were observed and salpingectomy vs. organ-preserving techniques compared. 30 cases of postoperative HCG-increases and 19 cases with operative treatment of residual trophoblast are also analysed. Endoscopic salpingectomy of tubal pregnancies is a safe procedure with a very low complication rate. Organ-preserving treatment of tubal pregnancies via laparoscopy has a critical complication range of 7-9%. This should be considered for the choice of the operating procedure and the patient should be informed of the risks and their frequency.

Adult↗

Intragastric endoscopic mucosal resection through a temporary gastrostomy for early gastric cancer: usefulness of Buess-type endoscope.

OBJECTIVE: To assess the feasibility of cure of early gastric cancer by the endoscopic procedure done through a temporary gastrostomy and to use it to treat patients with various severe complications. DESIGN: Prospective study. SETTING: University hospital, Japan. SUBJECTS: Four patients who required gastric mucosal resection for early gastric cancer. MAIN OUTCOME MEASURES: Ease of the procedure, cure rate, safety under epidural anaesthesia, and outcome. RESULTS: All patients had the procedure under epidural anaesthesia without pain or complaints during operation. Mean operation time was 120 minutes (60-200). Histological examination showed that the surgical margin was free of tumour in 3 of the cases. One patient who had microscopic invasion of lymph nodes subsequently underwent second-look conventional gastrectomy with lymphadenectomy. Postoperative recovery was rapid, and all patients were discharged from the hospital uneventfully. CONCLUSION: This organ-preserving procedure enables good visualisation of the tumour and is useful even for high-risk patients.

Adult↗

Percutaneous endoscopic gastrostomy. Initial placement by single endoscopic technique and long-term follow-up.

Of 598 patients, 595 underwent placement of a percutaneous endoscopic gastrostomy (PEG) tube using a single endoscopy technique and a polyurethane gastrostomy tube. Primary indications were altered mental status and dysphagia. All procedures were performed in the operating room, with 74 patients receiving general anesthesia and 524 intravenous sedatives with or without topical anesthesia. Average operating room time was 34 minutes. Of 208 patients with prior intra-abdominal surgery, 207 underwent successful placement. The overall complication rate was 4.9%, with a major complication rate of 1.3%. One death occurred from presumed leakage at the gastrostomy site with peritonitis. One hundred twenty patients subsequently died of causes unrelated to the gastrostomy tube after 75 +/- 164 days (range, 1 to 972). One hundred fifty-four patients recovered an adequate oral diet and had the PEG removed after 169 +/- 244 days (range, 6 to 1337). The remaining 319 patients continued to use their gastrostomy tube for 1532 +/- 411 days (range, 134 to 2251). The polyurethane gastrostomy tube has been very durable; none has required replacement because of deterioration.

Enteral Nutrition↗

Long-term outcome analysis of functional endoscopic sinus surgery: correlation of symptoms with endoscopic examination findings and potential prognostic variables.

One hundred eighty-two patients were evaluated after functional endoscopic sinus surgery. The goal was to establish whether any anatomical finding correlated with symptoms and to find any historical predictors of symptomatic failure. Of all physical findings reviewed, only scarring of middle meatal antrostomy and scarring of the ethmoids approached significance in predicting poor outcome. Surprisingly, of the historical factors reviewed, only gastroesophageal reflux disease was statistically significant as a predictor of poor symptomatic outcome.

Adult↗

Dwell time and functional failure in percutaneous endoscopic gastrostomy tubes: a prospective randomized-controlled comparison between silicon polymer and polyurethane percutaneous endoscopic gastrostomy tubes.

BACKGROUND: Silicone percutaneous endoscopic gastros-tomy (PEG) tubes are associated with more short-term complications and possibly fail sooner than those made of polyurethane. Understanding the deterioration and long-term complications leading to tube failure has important clinical and cost implications. AIM: To compare dwell time and patterns of failure ofsilicone polymer and polyurethane PEG tubes. METHODS: Participants randomized to receive a siliconepolymer (n = 76) or polyurethane (n = 62) PEG werevisited monthly for 540 days, until death or tube removal. Tube and exit site characteristics and reasons for removal were recorded. RESULTS: Tube failure occurred in 25% of silicone PEGs and 12.9% of polyurethane PEGs. Mean tube survival for silicone PEGs was 377.2 days (CI: 326-428) and for polyurethane 436.8 days (CI: 383-490; P = 0.13). A greater proportion of silicone PEGs developed intralumenal colonization and altered tube integrity than polyurethane (P < 0.001). Silicone PEGs blocked more frequently (P < 0.005) and were removed because of irreversible blockage more often than polyurethane PEGs (P < 0.05). Silicone PEGs with reversible blockage and tube integrity changes had a significantly greater probability of failure than silicone tubes without these changes (P < 0.005 and P < 0.05, respectively). CONCLUSIONS: Observations over time indicate that sili-cone PEGs are more susceptible than polyurethane PEGs to tube deterioration, resulting in substantially increased management demands to sustain patients' feeding and medication schedules.

Adult↗

Endoscopic variceal ligation plus propranolol versus endoscopic variceal ligation alone in primary prophylaxis of variceal bleeding.

BACKGROUND AND AIMS: The role of propranolol in addition to EVL in the prevention of first variceal bleed has not been evaluated. This prospective randomized controlled trial compared endoscopic variceal ligation (EVL) with propranolol and EVL alone in the prevention of first variceal bleed among patients with high-risk varices. PATIENTS AND METHODS: One hundred and forty-four consecutive patients with high-risk varices were randomly allocated to EVL plus propranolol (Gr I, n = 72) or EVL alone (Gr II, n = 72). EVL was done at 2-wk interval till obliteration of varices. In Gr I, incremental dosage of propranolol (sufficient to reduce heart rate to 55 beats/min or 25% reduction from baseline) was administered and continued after obliteration of varices. The endpoints of the study were bleeding and death. RESULTS: The two groups of patients had comparable baseline characteristics; follow-up (Gr I: 13.1 +/- 11.5 months, Gr II: 11.2 +/- 9.9 months), number of cirrhotic and noncirrhotic portal hypertension patients [Gr I 64 (88.6%) and 8 (11.4%), Gr II 63 (87.5%) and 9 (12.5%)], and frequency of Child's A (15 vs 18), B (38 vs 35), and C (19 vs 19). The mean daily propranolol dose achieved in Gr I was 95.6 +/- 38.6 mg. Eleven patients had bleeds, 5 in Gr I and 6 in Gr II. All patients bled before the obliteration of varices, the actuarial probability of first bleed at 20 months was 7% in Gr I and 11% in Gr II (p= 0.72). Six patients died in the combination and 8 in EVL group. All deaths in Gr I were due to nonbleed-related causes, while in Gr II, 2 deaths were bleed related, the actuarial probability of death at 20 months was 8% and 15%, respectively (p= 0.37). The probability of bleed-related death was comparable (p= 0.15). At the end of follow-up, 4 patients in Gr I and 11 in Gr II had recurrence of varices (p= 0.03). Side effects on propranolol were seen in 22% patients, in 8% it had to be stopped. There were no serious complications of EVL. CONCLUSIONS: Both EVL plus propranolol and EVL alone are effective in primary prophylaxis of bleed from high-risk varices. Addition of propranolol does not decrease the probability of first bleed or death in patients on EVL. However, the recurrence of varices is lower if propranolol is added to EVL.

Adrenergic beta-Antagonists↗

Display modes for CT colonography. Part II. Blinded comparison of axial CT and virtual endoscopic and panoramic endoscopic volume-rendered studies.

PURPOSE: To determine the sensitivity of radiologist observers for detecting colonic polyps by using three different data review (display) modes for computed tomographic (CT) colonography, or "virtual colonoscopy." MATERIALS AND METHODS: CT colonographic data in a patient with a normal colon were used as base data for insertion of digitally synthesized polyps. Forty such polyps (3.5, 5, 7, and 10 mm in diameter) were randomly inserted in four copies of the base data. Axial CT studies, volume-rendered virtual endoscopic movies, and studies from a three-dimensional mode termed "panoramic endoscopy" were reviewed blindly and independently by two radiologists. RESULTS: Detection improved with increasing polyp size. Trends in sensitivity were dependent on whether all inserted lesions or only visible lesions were considered, because modes differed in how completely the colonic surface was depicted. For both reviewers and all polyps 7 mm or larger, panoramic endoscopy resulted in significantly greater sensitivity (90%) than did virtual endoscopy (68%, P = .014). For visible lesions only, the sensitivities were 85%, 81%, and 60% for one reader and 65%, 62%, and 28% for the other for virtual endoscopy, panoramic endoscopy, and axial CT, respectively. Three-dimensional displays were more sensitive than two-dimensional displays (P < .05). CONCLUSION: The sensitivity of panoramic endoscopy is higher than that of virtual endoscopy, because the former displays more of the colonic surface. Higher sensitivities for three-dimensional displays may justify the additional computation and review time.

Colonic Polyps↗

Endoscopic transesophageal and endoscopic transbronchial real-time ultrasound-guided biopsy.

The goal of preoperative staging of non-small-cell lung cancer is to identify patients who will benefit from surgical resection. Various imaging and less invasive modalities are now available to improve therapy decision-making, and with the introduction of multimodality treatment of lung cancer, proper staging of this disease is becoming more and more important. This staging process is therefore not only a question of determining the prognosis, but it is also necessary information for institution of the right treatment. Proper staging and restaging of lung cancer should also be a must in the evaluation of the different treatments of lung cancer in controlled clinical trials. In lung cancer, endoscopic ultrasound scanning (EUS) is emerging as an accurate, nonsurgical alternative to staging the mediastinum through EUS-fine-needle aspiration (EUS-FNA). The author presents publications on evaluating EUS in diagnosing lymph node involvement in lung cancer and tumor ingrowths in the mediastinum. With EUS it is possible to guide FNA with direct visualization of the needle path into the lymph nodes in real time. Although this method is only able to visualize the posterior path and the inferior parts of the mediastinum, it makes it possible to visualize the aortopulmonary window. The limitation of EUS is a sensitivity of about 90%; nonetheless, this method is more precise than other staging procedures except for mediastinoscopy, which is limited to only the anterior parts of the mediastinum.

Biopsy, Fine-Needle↗

Safety and factors related to survival after percutaneous endoscopic gastrostomy in ALS. ALS Percutaneous Endoscopic Gastrostomy Study Group.

Percutaneous endoscopic gastrostomy (PEG) has been proposed as symptomatic treatment of dysphagia in patients with ALS. Safety and factors related to survival after PEG were analyzed in 50 consecutive ALS patients. No major acute or long-term complications were observed. Stabilization or increase in weight were observed after PEG. Median survival after PEG was 185 days, with a worse outcome in patients with weight loss > or =10% healthy body weight and forced vital capacity <65%. PEG may be a useful option in the symptomatic treatment of dysphagia in ALS.

Adult↗

[Endoscopic and X-ray endoscopic technologies in urology].

Present-day urology in the Russian Federation combines achievements of classic surgery with innovations of the last two decades which radically changed approaches to treatment of many urological diseases. Wide introduction in clinical practice of low invasive endoscopic and roentgenoendoscopic (endourologic) techniques is a standard for urology progress worldwide. N. A. Lopatkin, academician of Russian Academy of Medical Sciences, contributed much to advances of domestic urology. He has organized endourological service as a basis of further technological progress, introduction of low-invasive methods alternative to traumatic open surgical interventions.

Endoscopy↗

Transanal Endoscopic Microsurgery (TEM): the first endoluminal endoscopic surgery.

The typical concept of endoscopic surgery is the performance of surgical procedures in the two major body cavities, the abdomen and thorax. To perform this, small incisions for the ports are needed to introduce optics and instruments. Typically, the optic and the instruments are introduced from different angles. The access itself is associated with a reduced trauma.

Journal Article↗