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At least 1,405 records · Page 78Linked to original sources
PubMed2000

Laparoscopic Roux-en-Y gastric bypass for morbid obesity: technique and preliminary results of our first 400 patients.

HYPOTHESIS: A technique of the laparoscopic Roux-en-Y gastric bypass can be developed that is safe, effective, and practical in the community setting. DESIGN: A case series of 400 morbidly obese and superobese individuals who underwent the laparoscopic Roux-en-Y gastric bypass over a 22-month period. SETTING: Community private practice in Fresno, Calif. PATIENTS: A consecutive sample of 400 patients (70 males and 330 females) who met National Institutes of Health criteria for recommendation of a bariatric procedure. Only patients who had a previous gastric or bariatric procedure were excluded from this sample. INTERVENTION: Laparoscopic Roux-en-Y gastric bypass with a hand-sewn gastrojejunal anastomosis. MAIN OUTCOME MEASURES: Weight loss, complications, length of hospital stay, successful completion of the operation, and operative times were measured. RESULTS: Open conversion was required in 12 patients (6 males and 6 females) and a secondary operation for incomplete division of the stomach was required in 2 patients early in the case series. Alternative exposure and fixation techniques greatly reduced these occurrences. There were 6 staple-line failures owing to a change in the manufacture of the instrument. There were no leaks at the gastrojejunal anastomosis, but 21 patients required endoscopic balloon dilation for significant stenosis. The average hospital stay was 1.6 days for the patients who underwent laparoscopy and 2.7 days for patients requiring open conversion. Average excessive weight loss was 69% at 12 months. Operative times are between 60 and 90 minutes. Other complications are described. CONCLUSION: The Roux-en-Y gastric bypass can be safely and effectively performed in the community setting using advanced laparoscopic techniques.

Adolescent↗
PubMed1987

Endoscopy in patients undergoing gastroplasty for morbid obesity.

Fifty patients underwent gastroplasty for morbid obesity. The follow-up regimen included both nutritional and weight assessment and gastroscopy. Weight loss was satisfactory in patients with gastric stomas less than 9 mm in diameter. Stomal obstruction was endoscopically diagnosed in 5 patients. Endoscopic dilatation was successful in 4 patients. Gastroscopy should thus be a routine postoperative procedure in patients undergoing gastric partitioning for morbid obesity.

Female↗
PubMed1999

Self-expanding metallic stents in the management of pyloric dysfunction after gastric pull-up operations.

The purpose of this paper is to report the use and benefits of self-expanding metallic stents employed in pyloric dysfunction. Four patients treated with oesophagectomy and gastric pull-up for oesophageal carcinoma failed to respond to balloon dilatation for pyloric dysfunction. Three of the patients were thought to have residual tumour at sites remote from the pylorus prior to stenting, but the fourth, who had undergone surgery 8 years previously, was thought to be cured. All were treated with self-expanding metallic stents. All four patients responded well with resolution of their symptoms. Over a mean follow-up of 6 months there has been no recurrence of symptoms. Stent insertion represents a potentially valuable method of treatment in patients with post-surgical pyloric dysfunction in whom simple balloon dilatation has failed.

Aged↗
PubMed1991

Endoscopy-guided balloon dilatation of esophageal strictures and anastomotic strictures after esophageal replacement in children.

This study evaluates the safety, efficacy, and technical problems of the new technique of endoscopy-guided balloon dilation (EGBD) in the treatment of strictures of the esophagus and its replacement. Between 1986 and 1990, the authors treated 33 children (aged 3 weeks to 20 years) with EGBD; 18 had esophageal strictures (primary esophageal atresia repair, 13; reflux esophagitis, 5), 13 had anastomotic strictures after esophageal replacement (colon, 12; stomach, 1), and 2 had caustic strictures. The majority (23 of 33) had previously failed to respond to conventional bouginage (mean, 11.2 sessions; range, 1 to 32 sessions). EGBD was performed using flexible endoscopy and flouroscopic screening under general anesthesia. Endoscopy identified and resolved the errors or uncertainties of preoperative contrast studies in 7 patients, 5 of whom had colon interposition. EGBD was achieved in all 31 patients with esophageal or replacement strictures; the mean number of EGDB procedures per patient was 2.1 (range 1 to 7). Symptomatic relief was excellent in 24 and moderate in 7 patients. Both patients with caustic strictures had esophageal perforation from EGBD (excessive inflation, 1; false passage of guide wire, 1). Patients who had experienced both conventional bouginage and EGBD noticed less pain with EGBD and resumed eating sooner. The authors conclude that EGBD is safe and effective for treating esophageal and replacement strictures but not caustic strictures.

Adolescent↗
PubMed1997

One-stage esophagectomy and in situ colon interposition for esophageal replacement in children.

PURPOSE: Esophageal replacement has been achieved using stomach, gastric tube, small intestine, and colon in various positions and in single or multiple stages. Long-term functional results are of prime importance in children with benign disease. The aim of this study is to present the immediate and long-term results of one-stage esophagectomy and in situ colon interposition esophageal replacement in children. METHODS: Seven children have undergone one-stage esophagectomy and in situ colon interposition esophageal replacement for stricture secondary to caustic ingestion (n = 4), battery ingestion (n = 2), and epidermolysis bullosa (n = 1). TECHNIQUE: Via thoracoabdominal and cervical incisions, the transverse colon, isolated on the left colic artery, is pulled through the esophageal hiatus and normal esophageal bed into the neck at the time of simultaneous esophagectomy. The stomach is partially wrapped around the colon as an antireflux procedure and a pyloroplasty are performed. RESULTS: There was no immediate postoperative morbidity or mortality. All patients were discharged taking a soft diet by mouth. There were no anastomotic leaks or strictures, and functional swallowing is excellent. Contrast studies show no dilation of the colon in the chest. Growth and development have been normal up to 7 years postoperatively. CONCLUSION: The one-stage esophagectomy and in situ colon interposition is an excellent technique for esophageal replacement in children. Continued evaluation of this technique will be necessary to confirm these preliminary results.

Child, Preschool↗
PubMed1998

Gastrointestinal manifestations of Chagas' disease.

Chagas' disease is an infectious disease that affects millions of people in Latin America and is increasingly seen outside endemic areas. A substantial number of patients develop gastrointestinal disorders secondary to lesions of the enteric nervous system. The purpose of this article is to review the current knowledge about gastrointestinal manifestations of Chagas' disease, including disorders other than the well-known gross dilations of esophagus and colon.

Bile Duct Diseases↗
PubMed1988

Ciliated metaplasia in a gastric adenoma in a Swedish patient.

The second European case of ciliated gastric metaplasia is presented, this time in a Swedish patient. Cilia were found in cystically dilated glands underneath a gastric adenoma. The possibility that cilia represent adaptative metaplasia aimed at expelling the retained mucus within the cysts is discussed.

Adenoma↗
PubMed1987

Two cases of equine primary gastric impaction.

The clinical details of two cases of equine primary gastric impaction are described and the syndromes of gastric impaction and dilatation are discussed. Both cases of gastric impaction were successfully treated by gastrotomy and evacuation of the gastric contents.

Animals↗
PubMedDate not supplied

Chronic intestinal pseudo-obstruction.

Chronic intestinal pseudo-obstruction denotes the clinical picture that results due to the failure of intestinal peristalsis to overcome the normal resistance to flow and is characterized by recurrent episodes of signs and symptoms of intestinal obstruction in the absence of any mechanical compromise of the intestinal lumen. The region(s) of the gut affected may be isolated or diffuse. It is not uncommon to find evidence of autonomic neuropathy and smooth muscle dysfunction with extraintestinal manifestations such as urinary symptoms from abnormal ureter or bladder function. Intestinal pseudo-obstruction can be caused by a variety of diseases, and for simplicity, certain authors have divided it into myopathic and neuropathic categories. Intestinal pseudo-obstruction may present at any age with a variable amount of abdominal pain, distension, nausea, diarrhea, or constipation and with laboratory abnormalities usually reflecting the degree of malabsorption and malnutrition present. The radiologic findings are varied but commonly include paralytic ileus or signs of apparent clinical obstruction with dilated loops of bowel. The number of pseudo-obstruction cases is dependent on how one defines the condition. It appears prudent to require radiographic abnormalities consistent with obstruction on a plain film of the abdomen for the diagnosis. More recently, studies have focused on the gastrointestinal manometric abnormalities of the stomach and small intestine in chronic intestinal pseudo-obstruction during fasting and fed states; however, sensitivity and specificity of these abnormalities are not well defined. Treatment is aimed at limiting symptoms and maintaining adequate nutrition. Prokinetic agents should be tried in an attempt to restore normal intestinal propulsion. However, their overall efficacy appears to be variable. It is still too premature to consider intestinal pacing or small bowel transplantation in this condition. Surgical approaches to chronic intestinal pseudo-obstruction should be limited to patients refractory to medical therapy, and even then, an approach focused on the patient's primary presenting symptoms should be considered.

Chronic Disease↗
PubMed1987

[The regression of medial smooth muscle in host arteries supplying human cancers and its functional significance].

The hemodynamics prevailing in cancer tissue are known to be quite abnormal, at least in some cases, in that the tumor vessels are inert to vasoactive stimuli, a feature that has been exploited in the development of pharmacoangiography or induced hypertension chemotherapy. However, not only has this feature yet to be correlated with the structural changes occurring in the vascular wall, but also the remarkable differences existing among cancer patients in its manifestation await future elucidation. In a series of human cancers, we have been aware of peculiar degenerative changes differently involving the medial smooth muscle of tumor-supplying host arteries, which we have assumed act together with the muscular, newly formed "tumor vessels" in creating the abnormal reactivity of cancer blood flow, at the same time accounting for its wide variability. From this viewpoint, cancer-supplying host arteries were submitted to morphometry of their medial smooth muscle in 30 surgical specimens of carcinoma of the stomach or colon, and in 30 autopsied livers with hepatocellular carcinoma. In GI cancers it was disclosed that the percentage volume of smooth muscular cells in the medial layer, as high as 80% in segments of unaffected artery located at a distance from a cancer, rapidly fell to 30% or less as it reached and penetrated into a tumor, and that at the tumor center, a host artery was often transformed into a dilated sac with a purely collagenous wall. Morphometry of hepatocellular carcinoma also demonstrated unambiguous atrophy of the medial muscular layer of host hepatic arteries, which was shown to be significantly thinner than in control specimens even at a distance from the cancer. This too, was interpreted to be a contributory factor in the cancer circulation typically devoid of regulatory activity. We stress that the functional significance of these features of tumor-supplying host arteries should be taken into consideration when studying the behavior of individual cancers in arteriography, pharmacoangiography or induced hypertension chemotherapy.

Arteries↗
PubMed1993

[Long-term results in surgical treatment of chronic pancreatitis].

The work analyses 141 patients who were operated on for primary chronic pancreatitis which was caused by alcohol abuse in 84.4% of cases. The patients were divided into 2 subgroups according to the damage to the pancreas: 1--with dilatation of the pancreatic duct (49.6%), 2--without dilatation of the pancreatic duct (50.4%). Internal drainage of the duct system and their associated cysts was the main method of management of patients of the first group (52 patients). Patients of the second group were subjected to various resections of the pancreas (24) and occlusion of the ducts with a polymeric composition (19). In 38 cases the operation on the pancreas was complemented by operations on the biliary tract, stomach, and duodenum. Various postoperative complications were encountered in 27 (19.1%) patients, mortality was 5.7%. The results were most favorable after operations for internal drainage, resection of the organ, and external drainage of the cysts. Irrespective of the type of the operation, progressive fibrous degenerative changes of the gland with a statistically significant (p < 0.05) reduction of its size was noted in the late-term period. The method of occlusion of the duct system was marked by the greatest number of poor results. Strict argumentation of the indications for the use of each type of operation makes it possible to obtain good and satisfactory late-term results in 85.6% of cases.

Adult↗
PubMed2004

An endoscopic study of upper-GI mucosal changes in patients with congestive heart failure.

BACKGROUND: Congestive heart failure results in an increase in systemic venous pressure that is transmitted to the inferior vena cava and to the hepatic veins. This can cause GI vascular and mucosal congestion. The aim of this study was to define upper-GI mucosal changes in patients with congestive heart failure. METHODS: A total of 57 patients with congestive heart failure presenting with GI symptoms underwent upper endoscopy. Echocardiography was performed in all patients to determine the ejection fraction and the degree of tricuspid regurgitation. Transabdominal US was performed to measure the diameters of the hepatic veins, the inferior vena cava, and the portal vein. The presence and the severity of gastropathy and duodenopathy were compared with the parameters relating to severity of cardiac failure. RESULTS: Of the 57 patients studied, gastric mucosal changes were observed in 50 (88%), duodenal mucosal changes in 31 (54%), and esophageal mucosal changes in none. Gastric mucosal changes were the following: mosaic-like pattern (n = 50), punctate spots (n = 34), thickened folds (n = 5), watermelon stomach (n = 3), and telangiectasia (n = 10). Duodenal mucosal changes were the following: mosaic-like pattern (n = 29), thickened folds (n = 8), and telangiectasia (n = 2). Upper-GI symptoms were associated with gastropathy ( p = 0.027) and duodenopathy ( p = 0.003). The presence and the severity of duodenopathy showed a high degree of positive correlation with the presence and the severity of gastropathy (gamma value 0.690; p value <0.001). Patients with gastropathy and duodenopathy had higher mean inferior vena cava and hepatic vein diameters than those without gastropathy and duodenopathy. The severity of duodenopathy but not that of gastropathy was significantly associated with increasing severity of tricuspid regurgitation ( p = 0.001), larger portal vein diameter ( p = 0.02), and lower ejection fraction ( p = 0.008). CONCLUSIONS: Among patients with congestive cardiac failure with GI symptoms, changes of congestive gastropathy are evident in 88% and duodenopathy in 54%. The presence and the severity of duodenopathy was significantly associated with increasing severity of features of congestive heart failure.

Adolescent↗
PubMed2001

Fatal gastrointestinal infection with 'Flexispira rappini'-like organisms in a cat.

A 4-month-old male British Blue cat with catarrhal to haemorrhagic enteritis showed massive colonization of the stomach, small intestine and caecum with spiral-shaped bacilli. In the stomach, organisms were located in foveolae and gland lumina and within unaltered and degenerate epithelial cells. Inflammatory infiltration was moderate and T cell dominated. In the intestine, bacilli were found in the gut lumen, berween villi, in crypt lumina and within epithelial cells. Degeneration of crypt epithelial cells as well as crypt dilation and moderate to massive macrophage-dominated infiltration of the mucosa and submucosa were observed. Immunohistochemically, bacilli were positive with an antibody against Helicobacter. Ultrastructurally, the organisms strongly resembled 'Flexispira rappini', a spiral-shaped Helicobacter species known as a normal intestinal colonizer in dogs and mice.

Animals↗
PubMed2006

Prevention of pouch dilatation after laparoscopic adjustable gastric banding.

BACKGROUND: The major long-term complication of laparoscopic adjustable gastric banding (LAGB) is dilatation of the gastric pouch, that is reported with a frequency ranging from 1 to 25%, and often requires removal of the band. In addition to the usual recommendations of bariatric surgery centers and dietetic advice to prevent this complication, over the last 4 years we introduced a technical modification of the procedure. METHODS: From Nov 1993 to Dec 2004, 684 morbidly obese patients underwent adjustable gastric banding, 83 patients by open surgery and 601 patients by laparoscopy. The first 323 patients (group A) were operated by the perigastric approach, and 57 patients (group B) were operated by the pars flaccida approach. Since Dec 2000, 304 patients (group C) were operated with a modified pars flaccida technique, which consisted in suturing the gastric lesser curvature below the band with one or two stitches to the right phrenic crus to secure the band in place. RESULTS: In group A, the most important late complication was irreversible dilatation of the gastric pouch, which occurred in 35 patients (10.8%), and required removal of the band in 30 cases and replacement in 5. In group B, there were 3 pouch dilatations (5.2%). In group C, only 4 dilatations occurred (1.31%), which required 3 band removals and 1 band replacement. CONCLUSION: Dilatation of the gastric pouch appears to be dramatically reduced by our minor technical modification of band placement.

Adolescent↗
PubMed1999

Complications after vertical gastroplasty with artificial pseudopylorus in the treatment of morbid obesity: a 7-year experience.

BACKGROUND: Vertical gastroplasty with artificial pseudopylorus (VGAP) was designed to reduce the complication rate of other forms of gastroplasty. The purpose of this study was to analyze the complications of this approach for 7 years of surgical practice. METHODS: A total of 156 morbidly obese patients (BMI 41-81 kg/m2) who underwent VGAP were analyzed retrospectively in terms of early and late complications and gastroplasty failure. RESULTS: The early complication rate, operative and systemic, was 6.40% (10 patients) and the late complication rate was 12.16% (19 patients). Early complications: We observed two gastric leaks and subphrenic abscess formation with one gastrocutaneous fistula, one severe intraabdominal hemorrhage, one evisceration, two serious wound hematomas, one lobar pneumonia, one massive pulmonary embolism and two nodular erythemas. Late complications: There were two prepyloric ulcers, one pseudopyloric ulcer with stoma stenosis, seven wound hernias, four pseudopyloric dilatations with suture rejection and gastroplasty failure, and five staple-line dehiscences with endostomach channel formation and gastroplasty failure. One patient (0.64%) died from massive pulmonary embolism. CONCLUSIONS: The early and late complication rate was acceptable in this series. The applied technique of VGAP is simple, safe, and helps avoid many complications caused by the other forms of gastroplasty.

Abdomen↗
PubMedDate not supplied

Endoscopic laser therapy in the curative and palliative treatment of upper gastrointestinal cancer.

Endoscopic laser treatment was initially applied for gastrointestinal bleeding, but has been actively extended, especially in Japan, to the curative treatment of early upper gastrointestinal cancers. We have treated 10 cases of early gastric cancer and 1 case of early esophageal cancer by Nd-YAG laser radiation, and 2 cases of early gastric cancer by photochemical therapy (PCT) with argon laser + hematoporphyrin derivative. Also, 62 cases of advanced cancer were treated, 10 of the esophagus and 52 of the stomach, for bleeding (18 cases) or stenosis (34 cases). The cases were nonresectable or they were patients who refused surgery. Satisfactory results were obtained by treatment with YAG laser, but have not yet been obtained with PCT. In order to find indications for the possible extension of endoscopic laser therapy to operable cases of early gastric cancer, we studied lymph node metastases in 200 cases of early gastric cancer surgically treated by us. It was found that early gastric cancers (both mucosal and submucosal) measuring less than 2 cm in diameter, of type I, IIa, and IIc (without ulcer scar), had no lymph node metastases and such cases can be treated by local therapy--such as endoscopic laser therapy. In palliative endoscopic laser therapy for complications of advanced gastrointestinal cancers, there are no major problems with active performance. We obtained a high (90%) hemostatic rate in bleeding cases of upper gastrointestinal cancer and a satisfactory (65%) rate of dilating effect in cases of cancerous stenosis at the esophagus and cardia.(ABSTRACT TRUNCATED AT 250 WORDS)

Aged↗