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Biomedical subjects

Einar Arnbjörnsson

Publications and source records attributed to Einar Arnbjörnsson.

7 recordsLinked to original sources

Robotic fundoplication in children.

Since January 2006, robotic assistance has been used for performing minimal invasive laparoscopic fundoplications in children. These patients were compared with those operated on with either the open surgical technique or the laparoscopic procedure. The first six children operated on with a fundoplication using the operation robot, da Vinci Surgical System from Intuitive Surgical, were included prospectively. As controls, data from the latest six children operated on using the open surgical procedure and the latest six children operated on using the minimal invasive laparoscopic technique were selected retrospectively. All the patients were operated on due to gastroesophageal reflux and were comparable in the De Meester score. The main outcome measures were the operating time, the use of postoperative analgesics, the duration of the postoperative hospital stay and the short-term outcome. There was no significant difference between the three groups concerning age, body weight and preoperative 24 h pH measurement. The mean operating time for the robotic group, 213 min, was the longer one, but the operating time for the latest four patients in the robotic group was similar to that for the laparoscopic group, 189 min. The postoperative hospital stay was shorter and a reduction in the use of analgesics postoperatively was noted. The reduction in the postoperative hospital stay and in the use of analgesics had been already noted with the introduction of the minimal invasive laparoscopic technique. There was no difference in short-term clinical outcome; the gastroesophageal reflux symptoms disappeared in all the patients. Robot-assisted laparoscopic fundoplication is comparable with the standard laparoscopic surgical procedure in terms of duration of operation, postoperative hospital stay, use of postoperative analgesics and short-term clinical outcome. The robotic surgery adds qualities to the surgical work when compared with open or laparoscopic surgery. These include better visualisation for the surgeon and greater precision in the movements of the instruments used.

Esophagoscopy↗

No increase in gastroesophageal reflux after laparoscopic gastrostomy in children.

The objective of the study was to assess the influence of a laparoscopic video-assisted gastrostomy on acid gastroesophageal reflux (GER). A prospective uncontrolled study included 23 neurologically disabled children, from 10 months to 15 years of age, all with severe nutritional problems and in need of a gastrostomy. They all had a history of clinical GER problems including vomiting, choking and chest infections. A 24-h pH monitoring was used for a quantitative assessment of GER the day before surgery and 12+/-3 months (7-22 months) postoperatively. The gastrostomy was placed on the anterior wall of the stomach near the lesser curvature. The main outcome measure was the comparison of the pre- and postoperative 24-h pH monitoring and the reflux index (RI), i.e. the percentage of time with pH below 4. The results showed a non-significant reduction of RI from 6.8+/-4.5 preoperatively to 3.7+/-2.0 postoperatively. We conclude that a gastrostomy using the video-assisted technique and placing the stoma on the anterior wall of the stomach close to the lesser curvature does not cause aggravation of acid reflux.

Adolescent↗

Video-assisted gastrostomy in infants less than 1 year.

The objectives of this study were to report our experience with the laparoscopic video-assisted gastrostomy technique in infants operated during their first year of life. A total of 53 infants (35 males, 18 females) aged 6 +/- 3 months, varying from 3 weeks to 11 months, underwent video-assisted gastrostomy. They were prospectively followed up. Included are infants with neurological dysfunction, chromosomal anomalies, metabolic disorders, cardiac anomalies or respiratory insufficiency. All the infants were operated under general and local anaesthesia. Gastrostomy tube feeding began within 4 h after the operation. The infants were followed with a scheduled control at 1 and 6 months postoperatively documenting complications and weight gain. The main outcome measure was the number and type of complications as well as weight gain using the age-adjusted Z-score of weight to normalize the data relative to a reference population. The weight before and 6 months after the video-assisted gastrostomy was 5.5 +/- 1.6 and 8.5 +/- 1.6 kg, respectively. The Z-score increased significantly (P < 0.001) from -2.7+/-1.5 to -1.7 +/- 1.0. This illustrates the postoperative weight gain and catch-up. Short and long-term complications included minor local wound infection, leakage around the gastrostomy tube and granuloma, but no severe complications. Our results encourage the use of video-assisted gastrostomy as a safe technique to provide a route for long-term nutritional support even in infants less than 1 year.

Female↗

Complications of video-assisted gastrostomy in children with malignancies or neurological diseases.

AIM: To test the hypothesis whether the administration of cytostatic drugs close to surgery in children with malignancies influences the rate of postoperative complications. METHOD: Included in the study were 27 children with malignancies and a control group of 27 neurologically impaired children. All the children had nutritional problems and underwent a video-assisted gastrostomy (VAG) operation during the period 1997-2002. The children were postoperatively followed up. All complications were documented according to a protocol by a specially trained nurse and correlated to the time elapsed from completion of the last preoperative or the first postoperative cytostatic drug treatment. The complications in the two groups were compared. RESULTS: The children with malignant diseases did not have more postoperative complications of the VAG than those having neurological defects. There was no correlation to complications regarding timing of the operation and administration of cytostatic drugs. CONCLUSION: This study revealed no aggravated influence of cytostatic drug treatment on early postoperative problems of VAG. The timing of cytostatic drug administration in relation to the surgical intervention did not influence the frequency of postoperative complications.

Adolescent↗

Closure after gastrostomy button.

A gastrostomy device is removed from the gastrostoma when no longer needed. The aim of the study was to test the hypothesis of whether it is possible for the surgeon to decide which stoma has to be closed with a gastroraphy and which to leave for a spontaneous closure within a reasonable period of time. Out of a cohort of 321 patients, who had been operated with a video-assisted gastrostomy, we included all the 48 patients having had their gastrostomy button removed. These patients were carefully followed and the closure of the gastrostoma was registered. According to the institutional routine we waited at least 3 months after the removal of the gastrostomy device before suggesting to the child's guardians an operative closure of the stoma. In 26 patients the stoma closed within 3 months, whereas in 22 patients a surgical gastroraphy was performed. We found no differences between the two groups regarding the patients' diagnoses, the duration of the gastrostoma use or patient's age at the time of removal of the gastrostomy device. This study rejected the hypothesis of predictability of the gastrostoma closure. Thus, we recommend a routine expectance after the removal of a gastrostomy device for at least 1 month. If no spontaneous closure occurs, then a gastroraphy should be performed.

Abdominal Wall↗

Omentum herniation at a 2-mm trocar site.

An infant underwent laparoscopy using a 2-mm trocar for the video optic to achieve a gastrostomy. Two days postoperatively, a trocar-site herniation of the omentum was noted and measured. This suggests that the operating surgeon should consider a secure closure of the wound even after a 2-mm trocar is used in infants.

Gastrostomy↗

[Video-assisted placing of a gastrostomy button in children. Ten years of experiences show advantages of the method].

This report summarizes the experience of more than 300 gastrostomies performed during a ten-year period on children, 3 months (2.6 kg) to 15 years of age. The method used included the use of a video-assisted technique to perform a gastrostomy and placing a gastrostomy button directly in the stoma for use as soon as the child woke up after anaesthesia. The method did not cause any serious per- or postoperative complications and there were no re-does. Minor complications including granuloma, infections and leakage were common during the first two months postoperatively. Due to the child's anatomy this method should be preferred in children.

Adolescent↗