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Biomedical subjects

L Lundell

Publications and source records attributed to L Lundell.

At least 73 records · Page 4Linked to original sources
PubMed1998

Comprehensive 1-year cost analysis of open antireflux surgery in Nordic countries. Nordic GORD Study Group. Gastro-oesophageal reflux disease.

BACKGROUND: Antireflux surgery is a highly effective treatment option in patients with severe gastro-oesophageal reflux disease. However, because of the increasing pressure of cost containment within health care, cost aspects must also be added to the decision-making process. METHODS: The aim of this analysis was to assess the total cost of open antireflux surgery during the first year after operation in 178 patients with chronic reflux, who were recruited into a controlled, prospective clinical trial. The study was carried out in 17 hospitals in the Nordic countries. RESULTS: The cost of the operation represented more than 90 per cent of the direct medical costs which amounted to approximately US $5700. For a patient in the work force the indirect cost, i.e. loss of production, represented 47 per cent of the total cost, which was about US $10800. CONCLUSION: The total cost profile of open antireflux surgery has now been established prospectively and can form a basis for future comparisons.

Adolescent↗
PubMed1998

The usefulness of a structured questionnaire in the assessment of symptomatic gastroesophageal reflux disease.

BACKGROUND: The diagnosis of gastroesophageal reflux disease (GERD) rests primarily on recognition of symptom patterns that are classical for reflux disease, but little attention has been paid to the use of a formal questionnaire for identifying such symptom patterns. METHODS: A self-administered questionnaire was developed which has seven items that focus on the nature of the symptoms and the precipitating, exacerbating, and relieving factors. The diagnostic validity of the questionnaire was tested against endoscopy and 24-h pH monitoring. A further evaluation was undertaken in patients with symptoms suggestive of GERD and in patients with non-ulcer dyspepsia, to identify factors that might predict symptom relief during treatment with omeprazole. RESULTS: When endoscopic esophageal mucosal breaks and 24-h pH data were used as criteria for the diagnosis of GERD, the questionnaire had a sensitivity of 92% but a very low specificity of 19%. Symptom relief during treatment with omeprazole was predicted by the presence of heartburn, described as 'a burning feeling rising from the stomach or lower chest up towards the neck' (P = 0.004), and 'relief from antacids' (P = 0.02). In non-ulcer dyspepsia a positive response to omeprazole was confined to the subgroup of patients who identified their main discomfort as heartburn as described above. CONCLUSION: The present questionnaire using descriptive language usefully identified heartburn in patients presenting with upper abdominal symptoms, and this symptom predicted symptom resolution during treatment with omeprazole.

Anti-Ulcer Agents↗
PubMed1998

Outcome of open antireflux surgery as assessed in a Nordic multicentre prospective clinical trial. Nordic GORD-Study Group.

OBJECTIVE: To evaluate the outcome of antireflux surgery in various hospitals in Scandinavian countries. DESIGN: Partly randomised controlled study, and partly open study. SETTING: Hospitals throughout Norway, Sweden, Denmark and Finland. SUBJECTS: 310 patients with chronic reflux disease and oesophagitis who were initially entered into a randomised controlled study of omeprazole and antireflux surgery. INTERVENTIONS: Total fundic wrap, partial fundoplication, or omeprazole. MAIN OUTCOME MEASURES: Control of symptoms at one year. RESULTS: 154 patients who had their symptoms of reflux completely controlled with omeprazole were initially randomised to have an open operation but 10 refused, leaving 144 for analysis. 34 patients who had only a partial response were also offered operation; 120/178 (68%) had a total fundic wrap, and 53 (30%) partial fundoplication. 6 patients had postoperative complications that required reoperation and 123 made a completely uneventful recovery. Reflux was controlled in most patients, and only 10 (6%) required further treatment with omeprazole. The outcome in those patients who only responded partially to omeprazole was similar to that in patients who had a complete response. CONCLUSION: The outcome of antireflux surgery throughout Norway, Sweden, Denmark, and Finland is good.

Adolescent↗
PubMed1998

Short and long term course of elderly patients with peptic ulcer bleeding--analysis of factors influencing fatal outcome.

OBJECTIVE: To study long and short term survival in patients aged 60 years or over admitted with a peptic ulcer bleeding and find out which factors influence outcome. DESIGN: Cohort study with matched controls. SETTING: Two emergency hospitals, Sweden PATIENTS: 676 of the 687 patients aged 60 years or over admitted to the two emergency hospitals serving Gothenburg, Sweden during 1989-1993 who fulfilled the diagnostic criteria and whose case notes were available for study. MAIN OUTCOME MEASURES: Seven year survival rates and odds ratios for risk factors based on multiple logistic regression analyses. RESULTS: 37 patients died and the timing was evenly distributed within the first 30 days of admission with a cumulated case-fatality rate of 5.5% at day 30. Mortality was increased among the patients compared with the control group during the subsequent years. Factors that influenced day 30 mortality were age and Forrest class. CONCLUSION: Mortality is increased among patients with peptic ulcer bleeding even long after the event. Old age and signs of recent haemorrhage increase the risk.

Age Factors↗
PubMed1998

Risk factors for rebleeding and fatal outcome in elderly patients with acute peptic ulcer bleeding.

OBJECTIVE: Mortality after peptic ulcer bleeding (PUB) is high in elderly patients despite therapeutic advances. Little is known about what actually determines rebleeding and mortality. The objective of this study was to investigate which factors may have an independent influence upon rebleeding and mortality in patients with PUB. DESIGN: Prospective cohort study. PARTICIPANTS: Patients, above 60 years of age, hospitalized due to an endoscopically verified acute PUB were included in the study (n = 508). INTERVENTIONS: The occurrence of rebleeding within 3 days and mortality within 30 days was registered for all patients. A predefined set of variables with a potential to influence rebleeding and mortality was analysed in a multiple logistic regression model. MAIN OUTCOME MEASURES: Odds ratios (with confidence intervals) for all predefined variables with respect to influence upon rebleeding and mortality, respectively. RESULTS: The risk of rebleeding was significantly increased with greater age and if the patient was suffering from shock, while omeprazole infusion, acetylsalicylic acid (ASA)/non-steroidal anti-inflammatory drug (NSAID) intake before admission and gastric ulcer localization were associated with a lower risk. Mortality was significantly increased with greater age, heart disease and blood pressure < 100 mmHg at admission. Previous ulcer history and the presence of a Forrest class IIa ulcer significantly reduced this risk. CONCLUSIONS: Elderly patients in shock admitted due to their first peptic ulcer bleeding run the greatest risk of an unfavourable outcome.

Acute Disease↗
PubMed1997

Changes in body composition after gastrectomy: results of a controlled, prospective clinical trial.

To elucidate mechanisms involved in weight development after gastrectomy we have prospectively determined changes in body composition during the first year after similar operations. A total of 75 patients were enrolled who had a "curative operation" for gastric carcinoma; 42 were randomized to have a total gastrectomy, 23 total gastrectomy with a gastric substitute, and 10 subtotal gastrectomy. All reconstructions were done with a Roux-en-Y loop of the jejunum. Body composition was assessed preoperatively and at 6 and 12 months after gastrectomy by determining total body potassium and total body water. From these estimates, body cell mass, extracellular water, fat-free extracellular solids, and body fat were calculated with knowledge of the actual body weight and length. Triceps skinfold, arm muscle circumference, and grip strength were also measured. Weight loss (10% of preoperative weight) occurred early after the operations, after which body weight stabilized. Body cell mass remained essentially unchanged over the entire study period in contrast to body fat, which decreased by 40% during the first 6 months after gastrectomy. In accordance with the selective loss of body fat, we recorded a significant decrease in triceps skinfold figures and only a minor decrease of arm muscle circumference without obvious deterioration in hand grip strength. Weight loss after gastrectomy seems to be characterized by selective loss of body fat in contrast to other known clinical situations associated with impaired nutritional intake. Our observations form a basis for future clinical research aimed at preventing weight loss after these operations.

Aged↗
PubMed1997

Quality of life after gastrectomy for gastric carcinoma: controlled study of reconstructive procedures.

The choice of reconstruction after gastrectomy and the significance of remaining reservoir function is a matter of controversy. To broaden the criteria for choice of treatment, we conducted a prospective randomized clinical trial to determine the impact of various gastrectomy procedures on quality of life. Consecutive patients (n = 64) eligible for curative gastric cancer surgery were randomized to have either a total (n = 31) or subtotal (n = 13) gastrectomy or a jejunal S-shaped pouch (n = 20) implanted as a gastric substitute. The quality-of-life evaluation was based on a battery of questionnaires covering both general and specific aspects of life. The patients were rated by one of two psychiatrists who were blinded to the patients' group affiliation. Assessments were made on three occasions: during the week prior to surgery and 3 and 12 months after the surgical intervention. The postoperative complication and mortality rates were similar in all treatment groups, with few serious complications recorded. Irrespective of type of treatment, the patients suffered from alimentary symptoms and functional limitations in everyday life, whereas their mental well-being improved after surgery. Patients who underwent subtotal gastrectomy had the best outcome, especially with respect to complaints of diarrhea. Patients given a gastric substitute after gastrectomy showed no difference from those who had only a total gastrectomy. We conclude that despite significant unfavorable consequences that follow gastrectomy, patients recover with an improved mental status. A pouch reconstruction after total gastrectomy does not improve quality of life, but a subtotal gastrectomy has advantages that must be considered when the procedure is clinically feasible.

Adult↗
PubMed1997

Prognostic factors influencing relapse of oesophagitis during maintenance therapy with antisecretory drugs: a meta-analysis of long-term omeprazole trials.

BACKGROUND: This meta-analysis investigated factors that may affect the risk of relapse of oesophagitis, and evaluated the predictive value of symptoms for the presence of relapse during long-term treatment. METHODS: Individual data from 1154 patients included in five independently conducted, randomized, long-term clinical trials of the efficacy of different dosage regimens of omeprazole, standard ranitidine treatment and placebo for the prevention of relapse of oesophagitis were pooled for this meta-analysis. The therapeutic regimens studied were omeprazole 20 mg o.m. (OME20) in 366 patients, omeprazole 10 mg o.m. (OME10) in 225 patients, omeprazole 20 mg weekends (OMEW) in 235 patients, ranitidine 150 mg b.d. (RAN) in 179 patients, or placebo (PLA) in 149 patients. RESULTS: OME20 maintained 82.4% (95% CI: 78.2-86.6%) of patients in endoscopic remission over the 6-month period compared to 71.9% (95% CI: 65.5-78.3%) for OME10, 52.3% (95% CI: 44.4-60.1%) for RAN, 42.7% (95% CI: 35.8-49.5%) for OMEW, and 10.6% (95% CI: 5.0-16.3%) for PLA. A Cox's regression analysis of time to recurrence of oesophagitis showed that four factors were associated with a higher relapse rate during placebo and active maintenance therapy: (a) pre-treatment severity of oesophagitis (P < 0.0001), (b) young age (P = 0.01), (c) non-smoking (P = 0.02) and (d) moderate/severe regurgitation before entry into the trials (P = 0.03). Asymptomatic relapse of oesophagitis was uncommon, being found in only 8.6% of the patients. CONCLUSIONS: Maintenance treatment with omeprazole 10 and 20 mg daily is superior to all other regimens tested, and is only marginally influenced by the pretreatment severity of oesophagitis. Age contributes to the factors that influence the outcome during long-term treatment with omeprazole. Symptom relief is highly predictive for the maintenance of healing.

Adolescent↗
PubMed1997

Does oesophageal motor function improve with time after successful antireflux surgery? Results of a prospective, randomised clinical study.

MAIN OBJECTIVE: There is a continuing debate whether motor abnormalities associated with gastro-oesophageal reflux disease (GORD) are primary phenomena or occur as a consequence of repeated injury caused by inflammation. To get new insights into mechanisms involved, patients were studied before and three years after effective and durable reflux control induced by two types of fundoplications. PATIENTS AND METHODS: Thirty three consecutive patients with chronic GORD entered the trial. All patients had a clinical history of GORD assessed symptomatically, endoscopically, and by use of 24 hour pH-metry. Eighteen were randomised to a 180 degrees semifundoplication (Toupet) and 15 to a total fundic wrap (Nissen-Rossetti). Manometry was done preoperatively, six months, and three years after the operation assessing motor function in defined areas of the tubular oesophagus and lower oesophageal sphincter. RESULTS: All patients had a proper control of GORD both when objectively and clinically assessed. Postoperatively, the resting tone of the lower oesophageal sphincter was significantly higher in the Nissen-Rossetti group (p < 0.05), and the intra-abdominal portion of the lower oesophageal sphincter was of identical length in the two groups. A significant increase in peristaltic amplitude in the middle and distal third of the oesophagus was recorded at long term follow up compared with the preoperative findings (p < 0.05), but there was no corresponding effect on propagation speed and duration of contraction. However, an increase in peristaltic amplitude and, as a tentative consequence, a significant decrease (p < 0.05) in the frequency of primary peristalsis was found only in patients operated on with a total fundic wrap. CONCLUSION: Despite adequate and durable reflux control after fundoplication in patients with chronic GORD, no change was found in oesophageal motor function with time. The higher contraction amplitude and decreased frequency of failed primary peristalsis seen in patients having a total fundic wrap were thus most likely due to a mechanical outflow obstruction in the gastro-oesophageal junction. These results could therefore be interpreted in favour of the hypothesis that GORD is pathogenetically linked to a primary defect in oesophageal motor function.

Esophagus↗
PubMed1997

Osteoporosis after total gastrectomy. Results of a prospective, clinical study.

BACKGROUND: Osteopenia and enhanced risk of fractures have been reported after partial gastrectomy, but the significance of total gastrectomy is still unknown. METHODS: Twenty-six patients were followed up for at least 3 years after total gastrectomy. The intake and S-levels of vitamin D, phosphate, magnesium, and calcium were prospectively studied, and a whole-body dual-energy X-ray absorptiometry scan was performed at a mean of 5 years after gastrectomy. RESULTS: At this time point we found normal blood levels of vitamin D, calcium, and phosphate. Food intakes of phosphate, calcium, magnesium, and vitamin D reached the recommended daily allowances. Bone mineral density was similar to that of a control population, and increasing values were seen concomitant with an increase in body weight with the time after gastrectomy. CONCLUSIONS: Calcium homeostasis and bone mineral densities seem not to be affected by total gastrectomy, at least when studied over a period of 5 years, an observation that hypothetically can be explained by weight recovery with time after the operation.

Adipose Tissue↗
PubMed1997

Continuous intravenous infusion of omeprazole in elderly patients with peptic ulcer bleeding. Results of a placebo-controlled multicenter study.

BACKGROUND: Does profound acid inhibition by continuous infusion of omeprazole for 72 h reduce further bleeding in elderly patients with peptic ulcer bleeding (PUB)? METHODS: Three hundred and thirty-three patients > or = 60 years old with PUB were randomized to omeprazole (80 mg + mg/h) or placebo as continuous infusion for 72 h. From day 4 to 21 all patients received 20 mg omeprazole orally once daily. RESULTS: When evaluated on day 3, the primary variable 'overall outcome' (based on an ordinal ranking scale; see Study variables) (P = 0.017) and the secondary variables, surgery (P = 0.003), degree (P = 0.004) and duration of bleeding (P = 0.003) all favored the omeprazole group. Blood transfusions, need for endoscopic treatment, and mortality were not statistically different. On follow-up, by day 21, the mortality in the group initially receiving intravenous omeprazole was 6.9%, while the intravenous placebo group showed an extremely low mortality, 0.6%. CONCLUSION: Three days' infusion of omeprazole improved overall outcome and reduced need for intervention in PUB patients.

Aged↗
PubMed1997

Heartburn without oesophagitis: efficacy of omeprazole therapy and features determining therapeutic response.

BACKGROUND: Data are limited on the value of effective antisecretory therapy in the relief of heartburn in patients without oesophagitis. METHODS: Patients with heartburn, without endoscopic signs of oesophagitis, were randomized to double-blind treatment with omeprazole, 20 or 10 mg once daily, or placebo, for 4 weeks (n = 509). Pre-treatment oesophageal acid exposure was assessed using 24-h intra-oesophageal pH monitoring. Heartburn was assessed at 2 and 4 weeks. RESULTS: At 4 weeks the proportion of patients with complete absence of heartburn was 46% (95% confidence interval, 39-53%) with 20 mg omeprazole, 31% (25-38%) with 10 mg omeprazole, and 13% (7-20%) with placebo. Satisfaction with therapy was reported by 66%, 57%, and 31% of the patients, respectively. CONCLUSION: Omeprazole, 20 and 10 mg once daily, provides rapid relief of heartburn in patients without endoscopic oesophagitis.

Anti-Ulcer Agents↗
PubMed1997

Unilateral left-sided thoracoscopic sympathectomy for visceral pain control: a pilot study.

OBJECTIVE: To examine the effect of unilateral left sided thoracoscopic denervation of the upper gastrointestinal tract for treatment of chronic pain. DESIGN: Prospective study. SETTING: University hospital, Sweden. SUBJECTS: Patients with intractable upper abdominal pain. Nine patients were treated who had the following diagnosis: pancreatic carcinoma (4), duodenal carcinoma (n = 1), chronic pancreatitis (3), and portal vein thrombosis (n = 1). INTERVENTIONS: Left-sided thoracoscopy with the patient anaesthetised using double-lumen endotracheal intubation that allowed ventilation of the right lung only. The sympathetic chain and splanchnic branches were divided from level IV to X-XI. MAIN OUTCOME MEASURES: Severity of pain assessed by a visual analogue scale and mean consumption of analgesic drugs. RESULTS: All patients reported substantial relief of pain postoperatively when they were studied during a mean follow-up period of 3 months. However, two patients (1 with pancreatic carcinoma and 1 with portal vein thrombosis) had recurrent pain after 3 months. CONCLUSION: Unilateral thoracoscopic sympathectomy induces adequate and lasting relief of pain caused by benign as well as malignant diseases originating from the pancreatic region.

Abdominal Pain↗
PubMed1997

Vertical banded gastroplasty or gastric banding for morbid obesity: effects on gastro-oesophageal reflux.

OBJECTIVE: To assess the effect of vertical banded gastroplasty and gastric banding on the development of gastro-oesophageal reflux using both subjective and objective methods. DESIGN: Prospective, randomised study. SETTING: Teaching hospital, Sweden. SUBJECTS: 50 consecutive, morbidly obese patients (mean (SD) body mass index (BMI) 42.5 (5), 27 women and 23 men; mean age 48 years, range 38-57 years). INTERVENTIONS: Vertical banded gastroplasty (n = 24) or gastric banding (n = 26). MAIN OUTCOME MEASURES: Results of evaluation by standardised questionnaire, 24-hour ambulatory pH-metry, and endoscopy. RESULTS: After six months the mean (SD) BMI had decreased to 34.4 (5.7), with no differences between the groups. Mild dysphagia was somewhat more common (13 compared with 1) but the incidence of heartburn (8 compared with 17), and acid regurgitation (12 compared with 14) were less after the operation; 3 patients developed erosive oesophagitis, two in the vertical banded group and one in the banding group. Ambulatory pH-metry readings did not change significantly from preoperatively and there were no differences between the two operations. One patient developed pathological reflux, and in three the values returned to the normal range. CONCLUSION: Gastric restriction operations including those with a narrow stoma that causes outflow obstruction do not seem to increase the incidence of reflux in patients with functioning antireflux barriers.

Adult↗
PubMed1997

Respiratory function after laparoscopic and open fundoplication.

OBJECTIVE: To compare respiratory function in the immediate postoperative period in patients undergoing open or laparoscopic fundoplication. DESIGN: Prospective non-randomised open study. SETTING: University hospital, Sweden. SUBJECTS: A consecutive series of 32 patients who underwent a conventional open fundoplication and a further 25 consecutive patients who had a similar procedure done laparoscopically. MAIN OUTCOME MEASURES: Respiratory function, oxygen saturation, body temperature, analgesic consumption, rate of mobilisation, and postoperative stay in hospital. RESULTS: In the early postoperative period the respiratory function deteriorated less in the laparoscopy group as reflected by higher oxygen saturation (mean (SEM) 95.8 (0.6)% compared with 94.0 (0.6)%) on the first postoperative day (p < 0.05) and less reduction in forced vital capacity and peak expiratory flow (2.3 (0.2) L compared with 1.8 (0.1) L and 279.8 (19.7) L/min compared with 207 (19.8) L/min respectively) (p < 0.05). Patients had significantly less fever after the laparoscopic procedure (37.5 (0.1) C degrees compared with 38.0 (0.1) C degrees) (p < 0.001) and left hospital earlier (median 2 (range 1-5) days compared with 6 (3-9) (p < 0.001). CONCLUSION: All fundoplication procedures impair respiratory function but significantly less if the procedure is done laparoscopically.

Female↗
PubMed1996

Atrophic gastritis and Helicobacter pylori infection in patients with reflux esophagitis treated with omeprazole or fundoplication.

BACKGROUND: Helicobacter pylori infection plays an important part in the development of atrophic gastritis and intestinal metaplasia, conditions that predispose patients gastric cancer. Profound suppression of gastric acid is associated with increased severity of gastritis caused by H. pylori, but it is not known whether acid suppression increases the risk of atrophic gastritis. METHODS: We studied patients from two separate cohorts who were being treated for reflux esophagitis: 72 patients treated with fundoplication in Sweden and 105 treated with omeprazole (20 to 40 mg once daily) in the Netherlands. In both cohorts, the patients were followed for an average of five years (range, three to eight). After fundoplication, the patients did not receive acid-suppressive therapy. The presence of H. pylori was assessed at the first visit by histologic evaluation in the fundoplication group and by histologic and serologic evaluation in the omeprazole group. The patients were not treated for H. pylori infection. Before treatment and during follow-up, the patients underwent repeated gastroscopy, with biopsy sampling for histologic evaluation. RESULTS: Among the patients treated with fundoplication, atrophic gastritis did not develop in any of the 31 who were infected with H. pylori at base line or the 41 who were not infected; 1 patient infected with H. pylori had atrophic gastritis before treatment that persisted after treatment. Among the patients treated with omeprazole, none of whom had atrophic gastritis at base line, atrophic gastritis developed in 18 of the 59 infected with H. pylori(P<0.001) and 2 of the 46 who were not infected (P=0.62). CONCLUSIONS: Patients with reflux esophagitis and H. pylori infection who are treated with omeprazole are at increased risk of atrophic gastritis.

Adolescent↗