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 124,988 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

To analyze problems with inserting, maintaining and removing a laryngeal mask in children, as well as to assess the possible involvement of certain factors (experience with the laryngeal mask, type of anesthesia, duration of surgery, type of surgery, obesity, etc.) in favoring the development of complications. One hundred eighty-nine children undergoing a variety of surgical procedures under general anesthesia were studied; patients with full stomachs and/or a history of hiatus hernia were excluded. The agent used for anesthetic induction and the method of ventilation were chosen by the anesthesiologist responsible for each case. Variables monitored in all patients were continuous ECG, heart rate, systolic and diastolic arterial pressure, capnography, pulse oximetry, airways pressure and respiratory rate. Values were recorded at five times: before induction (T1), immediately after induction (T2), after placement of the laryngeal mask (T3), before removing the laryngeal mask (T4) and after removing the laryngeal mask (T5). Correct insertion was achieved on the first try in 85%. The remaining 15% required 2 or more tries. There were no cases in which a tracheal tube or face mask were required. We found no correlation between type or duration of surgery and the occurrence of complications. Complications were more frequent when the laryngeal mask was placed by inexperienced personnel, when inhalational anesthetics were used for induction and maintenance, and when a No. 1 laryngeal mask was used. Adequate ventilation was provided for the patients who required it with an airways pressure between 8 and 18 cmH2O, arterial oxygen saturation over 98% and end-expiratory CO2 pressure under 35 mmHg. Cardiovascular repercussions were slight and hemodynamic stability was good.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Application of the laryngeal mask in pediatric anesthesiology]. 856 55

An understanding of changes in pulmonology disease patterns observed at a general hospital before and after implantation of a population-based model of health care not only provides useful insight into the diseases treated but also aids adjustment of health care service organization. The aim of this study was to compare data collected after 1992 (when the new system was established) with records kept by the same pulmonology group in earlier years (1974-1986). Data after 1992 described patients attended in Health District 11 by the newly organized pneumologists. For the two periods the most common pneumological diagnoses were chronic air flow obstruction and chronic hypersecretory bronchitis. The most common non pneumological diagnoses were systemic arterial hypertension, obesity, diabetes, liver disease and hiatus hernia/gastroesophageal reflux. The prospective study covered a larger population and was closer to primary care, including as it did patients at clinics unattached to hospitals. In the earlier hospital-based experience the most common diagnoses were acute respiratory infection, chronic air flow obstruction and asthma, apart from those patients referred in whom no respiratory disease was found. With the organizational integration of hospital and health district pulmonology service, contact between patients and specialists has increased. Record systems have been established for a well-defined population to permit better forecasting at less cost and facilitate contact with primary care givers and epidemiological studies.
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PMID:[Diseases diagnosed at a pneumology unit integrated with its health area. Comparison with historical controls]. 894 84

A series of 98 laparoscopic fundoplications, included 7 cases (7.1%) of recurrent gastro-oesophageal reflux. Six of these cases occurred within 12 months of surgery. Four were successfully treated by a second laparoscopic procedure. The mean interval between the initial and corrective operations was 10 months. Factors related to failure were: technical errors, operative inexperience, obesity and the size of the hiatus hernia (when crural closure was not performed). Laparoscopic re-operation to was relatively easy and without mortality but had an increased risk of pleural effusions. The mean length of hospital stay for re-operations was identical to that of initial operations (4 days). No further recurrences were noted after a mean follow-up of one year (280-475 days). We conclude that early failures following laparoscopic fundoplication can be effectively dealt with laparoscopic surgery.
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PMID:[Laparoscopic correction of recurrent gastro-esophageal reflux following laparoscopic fundoplication (4 cases)]. 940 61

A 78-year-old individual, who had a previous transthoracic Nissen fundoplication 20 years earlier, presented to our institution with hemoptysis. Initial workup included chest roentgenogram, upper gastrointestinal series, and upper endoscopy, all of which were nondiagnostic. A repeat upper endoscopy diagnosed a gastrobronchial fistula by revealing a large gastric ulcer that penetrated into the lung parenchyma. The patient underwent surgery for takedown of the fistula. One of the most common symptoms associated with gastrobronchial fistula is hemoptysis, although insidious cough, recurrent pneumonia, or gastrointestinal bleeding are also observed. The most useful diagnostic study is an upper gastrointestinal series, which must be read with a high index of suspicion. Gastrobronchial fistula is most commonly a long-term complication from hiatal hernia repair. The most frequently used procedure for repair of this disorder is the Nissen fundoplication. This can be done from either an abdominal or transthoracic approach. When the procedure is done such that the gastric wrap is left above the diaphragm, serious complications can occur. These include gastric ulceration, gastric herniation with gastric outlet obstruction, slippage or perforation of the wrap, and gastrobronchial fistula. Because of these serious complications, the Nissen fundoplication with the wrap left above the diaphragm should only be used in certain situations, such as obesity and shortened esophagus.
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PMID:Unusual presentation of hemoptysis in a 78-year-old with previous Nissen fundoplication. 984 51

The authors studied the relationship of endoscopic esophagitis and gastroesophageal flap valve (GEFV) in patients with symptomatic gastroesophageal reflux (GER). On endoscopy, the GEFV was graded as I to IV in 138 patients with acid regurgitation and heartburn relieved by antacids, and in 54 control subjects without symptoms suggestive of GER. Grade of GEFV was correlated with the grade of esophagitis, response to medical treatment, duration of symptoms, obesity, smoking, sex, and age of the patient. Abnormal GEFV (grades III and IV) was more frequent in patients with symptomatic GER, both with and without esophagitis, compared with control subjects (p = 0.000001. p = 0.03). Abnormal GEFV was significantly more common in patients with GER with esophagitis compared with those without (p < 0.00001). There was no significant difference in the distribution of normal and abnormal GEFV in patients with grade I esophagitis. However, grade 2 and grade 3 esophagitis were associated more commonly with an abnormal GEFV (p < 0.00001, p < 0.02 respectively). Hiatal hernia is always associated with an abnormal GEFV. Abnormal GEFV correlated significantly with age (more frequent when older than 40 years). Sex, duration of symptoms (>3 years), response to medical therapy, smoking, and obesity (body mass index > 30 kg/m2) did not correlate significantly with abnormal GEFV. We conclude that endoscopic esophagitis is usually associated with abnormal GEFV. It is more frequent in grades 2 and 3 but not grade 1 esophagitis. It is also encountered more commonly after the age of 40 years.
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PMID:Endoscopic esophagitis and gastroesophageal flap valve. 1019 2

Hiatus hernia is usually attributed to conditions that cause a chronic increase in intra-abdominal pressure such as multiple pregnancies and obesity. A 30-year-old man, a weightlifter, had a massive hiatus hernia causing both high and low gastrointestinal obstruction but no involvement of the gastroesophageal junction or fundus. The onset of the obstruction is attributed to an extreme increase in intra-abdominal pressure caused by the action of lifting weights.
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PMID:Simultaneous pyloric and colonic obstruction associated with hiatus hernia in a weightlifter: a case report. 1037 20

Increased esophageal acid exposure in gastroesophageal reflux disease has several potential causes, some related primarily to physiological dysfunction of the LES and others related to anatomic distortion of the gastroesophageal junction as occurs with hiatus hernia. One attractive feature of implicating hiatal hernias in the pathogenesis of reflux disease is that, like reflux disease, axial hernias become more common with age and obesity. However, the importance of hiatus hernia is obscured by imprecise definition and an all-or-none conceptualization that has led to wide variation in estimates of prevalence among normal or diseased populations. There are at least three potentially significant radiographic features of a hiatus hernia: axial length during distention, axial length at rest, and competence of the diaphragmatic hiatus. Although any or all of these features may be abnormal in a particular instance of hiatus hernia, each is of different functional significance. Grouping all abnormalities of the gastroesophageal junction as "hiatus hernia" without detailing the specifics of each case defies logic. Mechanistically, the gastroesophageal junction must protect against reflux both in static and dynamic conditions. During abrupt increases in intra-abdominal pressure, the crural diaphragm normally serves as a "second sphincter," and this mechanism is substantially impaired in individuals with a gaping hiatus. Large, non-reducing hernias also impair the process of esophageal emptying, thereby prolonging acid clearance time following a reflux event (especially while in the supine posture). These anatomically-determined functional impairments of the gastroesophageal junction lead to increased esophageal acid exposure. Thus, although hiatus hernia may or may not be an initiating factor at the inception of reflux disease, it clearly can act as a sustaining factor accounting for the frequently observed chronicity of the disease.
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PMID:The role of hiatus hernia in GERD. 1078 May 71

A 40-year-old woman with type 2 diabetes mellitus, hypertension, central obesity (body mass index: 40 kg/m2) and mixed hyperlipidaemia was treated with oral hypoglycaemic, antihypertensive and hypolipidaemic drugs as well as with intramuscular insulin. She kept gaining weight and developed hiatus hernia with regurgitation. Treatment was changed to a very low caloric diet during 9 months. She lost 18 kg of body weight and all drugs could be discontinued, as she became normoglycaemic, normotensive and normolipidaemic. Obesity is a risk factor for insulin resistance and type 2 diabetes mellitus. To reach euglycaemia in overweight type 2 diabetics is a difficult task. Oral hypoglycaemic agents and insulin are often used in combination with dietary intervention without adequate results. Losing body weight should be first-line treatment. However, compliance with weight-reducing methods is often low. The pathophysiologic importance of significant weight loss in the treatment of (morbid) obesity in type 2 diabetic patients is great.
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PMID:[Very-low-calorie diet in treatment of morbidly obese patient with diabetes mellitus type 2]. 1087 1

There are few long-term follow-up reports of the Angelchik prosthesis (AP). We report the longest follow-up series (66-192 months, average 145 months) to date. Between October 1983 and January 1994, 65 patients (45 men and 20 women) aged between 29 and 84 years (mean 52 years) had an AP inserted for gastro-oesophageal reflux (GOR) with or without hiatus hernia (HH). Clinical, radiological, endoscopy, and operative details were reviewed. Postoperative complications, investigations, and follow-up details were critically analyzed. All living patients (n = 53) with an AP in situ were interviewed and symptomatic assessment was carried out using a modified Visick system (I-IV). The average duration of the GOR symptoms before the operation was 5.7 years (range 10 months to 20 years). The average hospital stay was 8 days (range 5-15 days). Postoperatively, five patients developed chest infection/atelectasis, four had superficial wound infection, two had deep vein thrombosis (one with pulmonary embolism), one had urinary retention, and four developed an incisional hernia. Six patients (three with an AP in situ) died of other medical conditions. Ten (15%) patients had removal of the prosthesis. Eight (12%) and 11 (17%) had transient and persistent dysphagia, respectively. Thirteen (20%) and five (8%) patients had distal slippage and proximal migration of the prosthesis, respectively. One patient had erosion of the AP into the stomach, while in another patient, the straps of the prosthesis ruptured. Of the 53 living patients with an AP in situ, 28 (53%) were Visick I, 11 (20%) were Visick II, 11 (20%) were Visick III, and 3 (7%) were Visick IV. We conclude that the AP has poor long-term results, with only 66% attaining Visick I and II, and a prosthesis removal rate of 15% (10/65). Patients with preoperative dysphagia, hypothyroidism, and diabetes tend to do worse with an AP. Obese patients and those with failed previous fundoplication seemed to fare well with an AP. In view of poor long-term results and high incidence of complications as compared to other conventional operations for GOR, we cannot recommend the continued use of the AP.
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PMID:Angelchik prosthesis revisited. 1189 46

Gastro-oesophageal reflux disease (GERD) is common in obese patients. Apart from the physical discomfort and the economic burden, GERD may increase morbidity and mortality through its association with oesophageal carcinoma. The pathophysiology of GERD differs between obese and lean subjects. First, obese subjects are more sensitive to the presence of acid in the oesophagus. Second, hiatal hernia, capable of promoting GERD by several mechanisms, is more prevalent among the obese. Third, obese subjects have increased intra-abdominal pressure that displaces the lower oesophageal sphincter and increases the gastro-oesophageal gradient. Finally, vagal abnormalities associated with obesity may cause a higher output of bile and pancreatic enzymes, which makes the refluxate more toxic to the oesophageal mucosa. The altered body composition associated with obesity affects the pharmacokinetics of drugs. There are no data regarding the efficacy of any of the drugs used for GERD treatment. The dosages of cimetidine and ranitidine should be calculated according to the patient's ideal body weight, not their actual weight. Of the operative procedures used for weight loss, Roux-en-Y gastric bypass was found to be most effective for GERD, while gastric banding was associated with a high prevalence of reflux. This review outlines the pathophysiology and the treatment of GERD in obesity with emphasis on the therapeutic considerations in this population of patients.
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PMID:Gastro-oesophageal reflux disease in obesity: pathophysiological and therapeutic considerations. 1211 61


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