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D C van der Zee

Publications and source records attributed to D C van der Zee.

At least 19 recordsLinked to original sources

Carbon dioxide differentially affects the cytokine release of macrophage subpopulations exclusively via alteration of extracellular pH.

BACKGROUND: The improved outcome after endoscopic surgery has been attributed to less surgical trauma. However, the underlying mechanisms are not fully understood, and direct effects of CO2 used for pneumoperitoneum, cellular acidification, and/or the lack of air contamination have been postulated to additionally modulate immune functions during endoscopic surgery. We investigated the effects of CO2 incubation, extracellular acidification, and air contamination on the inflammatory response of two distinct macrophage populations. METHODS: R2 and NR 8383 rat macrophage cell lines were used. Interleukin-6 (IL-6) and nitric oxide after lipopolysaccharide (LPS) stimulation were determined in these sets of experiments: incubation in 100% CO2, 5% CO2, and room air for 2h; incubation at pH 7.4, 6.5, and 5.5 for 2 h in 5% CO2; and incubation in 100% CO2, 5% CO2 and room air in fixed pH 6.3. The extracellular pH was monitored during incubation. We determined the alteration of intracellular pH in cells subjected to extracellular acidification by fluorescence microscopy. RESULTS: Extracellular pH decreased to 6.3 during 100% CO2 incubation. IL-6 release was reduced after CO2 incubation in NR 8383 cells and increased in R2 cells (p < 0.05). It was not altered by air incubation. Decreasing the extracellular pH to 6.5 mimicked the effects of CO2 and a decrease to 5.5 suppressed IL-6 release in both cell lines. In fixed pH at 6.3, CO2 and air incubation had no effect. CO2 and pH had no impact on nitric oxide release and vitality. Intracellular pH decreased with extracellular acidification without significant difference between the two cell lines. CONCLUSIONS: A decrease in extracellular pH during incubation in CO2 differentially affects IL-6 release in macrophage subpopulations. This may explain contradictory results in the literature. Moreover, we demonstrated that air contamination does not affect macrophage cytokine release. The decrease in extracellular pH is the primary underlying mechanism of the alteration of macrophage cytokine release after CO2 incubation, and it appears that the ability to maintain intracellular pH is not determined by the effects of CO2 or extracellular acidification.

Animals↗

Surgery for necrotising enterocolitis: primary anastomosis or enterostomy?

The ideal surgical management of neonates with necrotising enterocolitis (NEC) is still a matter of debate. The purpose of this study was to compare the results of bowel resection with primary anastomosis with the results of bowel resection with enterostomy. Sixty-three neonates with NEC had a bowel resection in the acute phase of the disease in the period between February 1990 and March 2001. Thirty-four of them (54%) underwent resection of the bowel with primary anastomosis (Group A), and 29 (46%) had resection with enterostomy (Group B). Group A had a lower gestational age and lower birth weight. Mortality, complication rate, and postoperative weight gain were not significantly different between the groups. However, Group B had a significantly longer primary hospital stay (80 +/- 49 days versus 58 +/- 31 days, P < 0.04) and needed a 2nd hospital stay for restoring gastrointestinal continuity. For both reasons, it can be argued that primary anastomosis is superior to enterostomy after resection.

Anastomosis, Surgical↗

Laparoscopic pyloromyotomy for hypertrophic pyloric stenosis: impact of experience on the results in 182 cases.

BACKGROUND: There has been discussion about the value of laparoscopic pyloromyotomy (LP) for the treatment of hypertrophic pyloric stenosis (HPS). In their initial small series, the authors reported a relatively high complication rate. The current study was undertaken to investigate the influence of experience with LP on operative time, complication rate, and postoperative hospital stay for a large number of patients. METHODS: Between October 1993 and March 2002, 182 children underwent LP for HPS. These procedures involved 11 surgeons, 4 consultants, and 7 trainees. The end points of the study were operative time, complications, and postoperative hospital stay. The outcome of 146 LPs performed after July 1996 was compared with the outcome of 36 LPs performed before that period. RESULTS: There was no significant difference in the mean operative time between the two series, but the operative time per surgeon dropped with experience. Mucosal perforation was experienced by 8.3% of the patients in the initial series, as compared with 0.7% in the later series. Insufficient pyloromyotomy occurred in 8.3% of the initial series, as compared with 2.7% of the later series. Other minor complications such as wound infection were infrequent and not influenced by further experience. Major wound-related problems did not occur. The LP procedure was easily learned by novices. After about 15 pyloromyotomies, the operative time was approximately 25 min. The length of postoperative hospital stay also dropped with increasing experience. CONCLUSIONS: The value of LP for the treatment of HPS has been proved. The LP procedure is as quick as the open procedure, has a low morbidity, and is devoid of major wound-related problems. Moreover, the procedure seems to be well teachable.

Clinical Competence↗

Early feeding after laparoscopic pyloromyotomy: the pros and cons.

BACKGROUND: Early feeding after pyloromyotomy for hypertrophic pyloric stenosis (HPS) has been advocated because this would lead to earlier discharge. However, some authors remain reluctant to introduce early feeding because of concern about postoperative vomiting. This study aimed to clarify the effects of early versus later feeding after laparoscopic pyloromyotomy on postoperative vomiting, time required to reach full oral feeding, hospital stay, and follow-up evaluation. METHODS: During the period from October 1993 through March 2002, 185 infants underwent laparoscopic pyloromyotomy for HPS. Of these patients, 164 patients were included in the study. The initial feeding was within 4 h after surgery in group A and after 4 hours in group B. The outcome variables were postoperative vomiting subdivided into vomiting requiring adjustment of the feeding schedule or not, time required to reach full feeding, hospital stay, and vomiting as well as weight gain at follow-up assessment. RESULTS: In 23% of the 62 patients of group A and in 6% of the 102 patients of group B (p = 0.003), vomiting was so severe that it necessitated modification of the feeding schedule. Th time required to reach full feeding and the postoperative hospital stay were similar in the two groups. Analysis of the subgroups that required modification of the feeding schedule because of vomiting showed a significant delay in time required to reach full feedings as well as a significant delay in hospital discharge. There was an 11% incidence of ongoing vomiting after discharge irrespective of early or later feeding. Weight gain at follow-up assessment did not differ significantly between the two groups, and did not bear any relations to in-hospital vomiting. CONCLUSIONS: Feeding within 4 h postoperatively leads to more severe vomiting than later feeding. Vomiting leads to discomfort for the child, anxiety for the parents, a prolonged time required to achieve full oral feeding, and a prolonged postoperative hospital stay. However, clinical outcome after discharge is not adversely affected by early feeding. According to this study, it appears that it would be better to withhold feeding for the first 4 h after surgery.

Bottle Feeding↗

Is routine dilatation after repair of esophageal atresia with distal fistula better than dilatation when symptoms arise? Comparison of results of two European pediatric surgical centers.

BACKGROUND/PURPOSE: The aim of this study was to determine whether routine dilatation of the anastomosis after repair of an esophageal atresia with distal fistula (EADF) is superior to a wait-and-see policy with dilatation only when symptoms arise. METHODS: The records of 100 consecutive patients operated on for EADF in 2 European pediatric surgical centers (A [n = 63], B [n = 37]) were reviewed. In center A, dilatation of the anastomosis was carried out in symptomatic cases only, whereas in center B dilatation was begun 3 weeks postoperatively and repeated every 1-3 weeks until a stable diameter of 10 mm was reached. Particular attention was paid to the number of dilatations per patient, dilatation-related complications, and differences in results after 2 years. RESULTS: The patient materials of both centers did not differ with respect to the incidence of prematurity, tracheomalacia, gastroesophageal reflux (GER), and major postoperative complications. The incidence of associated anomalies was higher in center B (P < .05). In center A, 26 of 63 patients underwent dilatation; in center B, all 37 patients were dilated (P < .05). Median number of dilatations per patient was 4 in center A and 7 in center B (P < .05). In center A, 23 of 26 and in center B, 20 of 37 of the patients received medical treatment for GER at the time of the dilatations. Dilatation-related complications developed in 7 of 26 patients of center A and in 3 of 37 patients in the center B (P value, not significant). The median primary hospital stay was 24 days in center A and 33 days in center B (P < .05), median secondary hospital stay for dilatation was 6 days in center A and 13 days in center B (P < .05). After 2 years of follow-up, the incidence of dysphagia, respiratory problems, or bolus obstruction did not differ significantly between the 2 centers. CONCLUSIONS: A wait-and-see policy and dilatations based on clinical indications for patients with repaired EADF is superior to routine dilatations. It appears that more than half of the patients do not require dilatations at all.

Anastomosis, Surgical↗

The laparoscopic approach to sacrococcygeal teratomas.

BACKGROUND: Sacrococcygeal teratomas (SCT) are classically approached posteriorly through an inverted chevron incision. In large, external, mainly solid SCT, prior interruption of the arterial supply is warranted because of impending heart failure and life-threatening hemorrhagic diathesis. Hitherto, this has required prior laparotomy. A laparotomy is also added when the tumor extends presacrally into the pelvis. The presacral region is, however, difficult to access. A laparoscopic-assisted approach seems to offer a solution for both problems. METHODS: A laparoscopic-assisted approach was used in five patients with SCT. In one neonate, it was used to interrupt the arterial blood supply only; in the other four patients, it was used to dissect the internal extension of the tumor. RESULTS: Laparoscopic interruption of the median sacral artery proved to be simple in the neonate with a large, external, mainly solid SCT. In three of the remaining four patients with presacral extension of the tumor, good visualization and dissection of the intrapelvic portion of the tumor was obtained. In one patient, the procedure had to be converted because of a lack of working space due to extensive intraabdominal growth of the tumor. CONCLUSION: A laparoscopic-assisted approach seems to be ideal for SCT. It provides the opportunity to interrupt the median sacral artery before the dissection. Moreover, it enables far better access to the presacral area than the conventional surgical approach when the SCT extends presacrally into the pelvis. Such a meticulous laparoscopic dissection may improve the functional results.

Abdominal Neoplasms↗

[Hypertrophic pyloric stenosis in infants: laparoscopic pyloromyotomy].

OBJECTIVE: To evaluate the results of laparoscopic pyloromyotomy in infants with hypertrophic pyloric stenosis (HPS). DESIGN: Retrospective. METHOD: Data from medical records were collected on all children who underwent laparoscopic extramucosal pyloromyotomy for hypertrophic pyloric stenosis in the period from 1 October 1993 to 31 March 2001 in the Wilhelmina Children's Hospital of the Utrecht University Medical Centre, the Netherlands. RESULTS: A total of 133 children were operated: 108 boys (81%) and 25 girls (19%). The mean age on the day of operation was 35.3 days (SD: 15.4). Of these children, 17 (13%) were ex-prematures and 8 (6%) were ex-dysmatures, and 40 (30%) had a positive family history for HPS. The mean operating time was 29 min (SD: 10); per surgeon, the first 5 operations required over 30 minutes on average and the following operations lasted an average of 26 minutes. Postoperatively, 84 patients (63%) no longer vomited. Four children required a second operation. The mean period from operation to discharge was 61.6 hours (SD: 46.0). Complications included: perforations of the mucosa (n = 4; 3%), wound infections (n = 4; 3%) and small incisional hernias (n = 5; 4%). CONCLUSION: Laparoscopic pyloromyotomy is an efficient and safe operative technique for the treatment of infants with HPS.

Female↗

Thoracoscopic repair of esophageal atresia with distal fistula.

BACKGROUND: Esophageal atresia (EA) has always been considered the hallmark of pediatric surgery. In the past decade, mortality was primarily the result of associated diseases, and operative morbidity had greatly improved. Yet the consequences of opening the thoracic cavity remained unchanged. In the era of endoscopic surgery, a thoracic approach to EA has become feasible, but is it of benefit for the patient? METHODS: Between May 2000 and June 2002, 13 neonates underwent thoracoscopic repair of EA. There were 12 boys and 1 girl. Mean gestational age was 36.9 weeks. Mean weight was 3093 g. Eleven children had associated anomalies. RESULTS: All of the procedures were performed thoracoscopically. There were no intraoperative complications, although anastomosis was difficult in one patient due to an extensive distance between the two stumps. Mean operating time was 2.6 h (range, 1.45-3.5). Five short-term postoperative complications occurred. Four of the early patients had stenosis due to a too-small incision in the proximal pouch, which needed one or more dilatations. One of these children, as well together as one other child, had anastomotic leakage, which was treated conservatively. Late complications consisted of gastroesophageal reflux ( n = 5) and tracheomalacia ( n = 1); these conditions required endoscopic correction in, respectively, two and one cases. Feeding by nasogastric tube was started after 3.5 days (mean), and total oral feeding was possible after 8.6 days (mean). Mean hospitalization was 12.2 days. Mean follow-up was 15.2 months. Scar formation was minimal, and the thoracic cage was preserved. CONCLUSION: The feasibility of thoracoscopic repair of EA has already been demonstrated. Today, its results in terms of operating time, feeding, hospital stay, and postoperative complications are equal to open procedures. Its advantages include better cosmesis and preservation of the thorax.

Esophageal Atresia↗

Laparoscopic identification and removal of focal lesions in persistent hyperinsulinemic hypoglycemia of infancy.

BACKGROUND: Persistent hyperinsulinemic hypoglycemia of infancy (PHHI) is a heterogeneous condition. A number of children have focal lesions, and removal of these lesions is curative. However, these lesions are difficult to detect, even during surgery. A laparoscopic approach is beneficial. METHODS: Two children with PHHI underwent laparoscopic pancreatic inspection at 32 and 29 days of age, respectively. RESULTS: In both children, a lesion was easily found in the head of the pancreas. The lesions looked more lobular, had a more pronounced blood supply, and appeared to have a firmer texture than the remaining pancreas. Enucleation was curative. CONCLUSION: A laparoscopic approach seems to be ideal for patients with PHHI not only because of the magnification but also because of the delicate surgery it allows and the avoidance of major abdominal wall problems.

Congenital Hyperinsulinism↗

Peritoneal, systemic, and distant organ inflammatory responses are reduced by a laparoscopic approach and carbon dioxide versus air.

BACKGROUND: Advantages of laparoscopic surgery have, among other factors, been attributed to a shorter length of abdominal incision and the use of CO2 versus air. An analysis of these factors taking pressure-induced alterations into account is lacking. The objective of the study was to determine the impact of laparoscopy and laparotomy with exposure to CO2 and room air under a similar pressure on local, systemic, and distant organ immune responses. METHODS: Twenty piglets were randomized into four groups: CO2 laparoscopy, air laparoscopy, CO2 laparotomy, and air laparotomy. Laparotomy was performed in a sterile balloon pressurized similar to laparoscopy. Peritoneal interleukin-1, interleukin-6, tumor necrosis factor-a, and counts of polymorphnuclear cells (PMNs), and macrophages (MFs) were determined in abdominal lavage fluids at 0, 2, and 48 h. Macrophages were assessed for reactive oxygen species (ROS) production. Systemic responses were gauged by white blood cell count (WBC) and cytokines. Alveolar lavage was performed at 48 h to determine cytokine levels, cell counts, and MF ROS production. Blood, lavage fluids, and mesenteric lymph nodes were tested for bacterial translocation. RESULTS: Regarding the peritoneal response, laparotomy versus laparoscopy when performed with CO2 significantly increased PMN and decreased the percentage of macrophages (%MF) up to 48 h. There was a significant increase in interleukin-6, and there was a fourfold increase in MF ROS production. Similar differences between the procedures were found with exposure to air. The use of air versus CO2 in laparoscopy, but not in laparotomy, resulted in an increase of peritoneal PMN and a decrease of the %MF up to 48 h. Air increased the local interleukin-6 release in both procedures and increased MF ROS production fourfold. Regarding the systemic response, laparotomy produced a significant increase in WBC, which was significantly more pronounced with exposure to air. No alteration of other systemic cytokines was seen. Regarding the pulmonary response, the number of MFs and MF ROS production were significantly increased after air versus CO2 laparoscopy. There were no such differences between the laparotomy groups. Regarding bacterial translocation, no bacteria were cultured from peritoneal fluids, lymph nodes, or blood. CONCLUSIONS: Inflammatory responses were reduced by a laparoscopic approach and by exposure to CO2 versus air. Peritoneal responses were affected to a larger degree than systemic parameters. Laparotomy overruled the effects of CO2 on chemotaxis and distant organ injury but not on peritoneal cytokine release.

Air↗

The role of laparoscopy in the management of childhood intussusception.

BACKGROUND: Some authors have argued that intussusception is best treated via a laparoscopic approach. As we did not have this impression, we reviewed our experience with this condition. METHODS: : We reviewed all patients with intussusception who were treated at our hospital over the past 10 years. The choice of whether to use a laparoscopic or open approach depended on the patient's clinical condition and the availability of surgeons with laparoscopic expertise. RESULTS: A total of 72 patients were identified. Based on age, two subgroups were distinguished-one comprised of patients under the age of 3 years and one of patients over the age of 3 years. Sixty-five patients were under 3 years of age. Thirty-five had surgery, and 19 required resection. Of the 10 patients who were treated with a laparoscopic approach, only three could be reduced laparoscopically. After conversion in the other seven patients, the intussusception was reduced in five whereas a resection was required in two cases. Seven patients were 3 years of age or older. All of them underwent surgery, and all but one required resection. All four children who were laparoscoped subsequently had a bowel resection at open surgery. CONCLUSIONS: Patients 3 years of age or older usually need resection and will not benefit from the laparoscopic approach. Under 3 years of age, little is to be gained from a laparoscopic approach, provided good nonsurgical reduction facilities are available. There is a place for the laparoscopic approach in cases of recurrent intussusception or doubtful reduction.

Age Factors↗

Quality of life in patients with anorectal malformation or Hirschsprung's disease: development of a disease-specific questionnaire.

PURPOSE: Hirschsprung's disease and anorectal malformation are congenital diseases of the digestive tract with sequelae into adulthood. The quality of life of patients with these diseases is largely unknown. The aim of the study was 1) to construct a self-report disease-specific instrument to assess the quality of life in these patients and 2) to evaluate its psychometric performance. METHODS: An age-specific (6 and 7 years, 8-11 years, 12-16 years, and >17 years) questionnaire called the Hirschsprung's disease/anorectal malformation quality-of-life instrument was constructed. This questionnaire consists of 39 to 42 items, grouped into 10 to 11 scales that cover physical, emotional, and social functions as well as disease-related symptoms. Generic quality-of-life data were obtained in addition. A national sample of 715 patients aged six years and older completed the questionnaire (response rate, 61.9 percent). RESULTS: Multitrait scaling analyses confirmed the hypothesized scale structure with exception of the scales related to diet for the two youngest groups. Cronbach's alpha ranged (with exception of the diet scales) from 0.62 to 0.91 for children (8-11 years), from 0.69 to 0.82 for adolescents (12-16 years) and from 0.57 to 0.91 for adults. Selective scales were able to discriminate between subgroups of adult patients known to differ in disease and disease severity. Relevant scales of the adult version showed substantial correlations (> 0.40) with comparable scales of the SF-36. In the two youngest age groups the differences between subgroups of patients were less significant, but in the expected direction. CONCLUSIONS: With the exception of the scales related to diet, the Hirschsprung's disease/anorectal malformation quality-of-life instrument is an instrument with promising reliability and validity, to measure the disease-specific quality of life of patients with anorectal malformation or Hirschsprung's disease.

Adolescent↗

Outcome after laparoscopic cholecystotomy and cholecystectomy in children with symptomatic cholecystolithiasis: a preliminary report.

Laparoscopic cholecystectomy (LCE) has become the procedure of choice for symptomatic gallstones in children. However, there is concern about the disadvantages of cholecystectomy. Numerous postoperative symptoms and a possible correlation of the procedure with a higher incidence of right-sided colon carcinoma have been described. Therefore, it has been suggested to remove the gallstones via a cholecystotomy, leaving the gallbladder in place. This is the first report on the functional and symptomatic outcome of laparoscopic cholecystotomy (LCO) versus LCE in a consecutive series of children. A follow-up study of all children who underwent surgery for symptomatic gallstone disease from 1993 to 1999 was performed. Nine underwent LCO and 8 standard LCE. The procedure was chosen according to the preference of the surgeon. Patients and parents underwent a standardized follow-up interview. The intensitiy of six gastrointestinal symptoms was graded from 0 to 3. The patients and parents scored the symptomatic outcome using a 100-point visual analogue scale. There were no intraoperative complications. Bleeding of a port site required suturing in 1 patient after LCO, and fever with a further uneventful course occurred in another after LCE. The mean duration of hospital stay was 3.0 days after LCO and 2.4 days after LCE. In 1 patient a missed gallstone was identified 4 weeks after LCO. The patient underwent LCE with a further uneventful course. At follow-up (mean 20.7 months after LCO, 28.3 months after LCE, P = n.s.) there was a tendency toward a lower incidence of symptoms after LCO. Symptoms were reported by 3 of 8 patients after LCO and 5 of 8 after LCE. The mean score of the symptomatic outcome was not statistically different. All patients with LCO were free of stones on ultrasound examination with normal contraction of the gallbladder. LCO thus represents an alternative approach. We consider LCO for children with symptomatic cholecystolithiasis before the onset of puberty. However, data on the long-term outcome from larger series are mandatory before a general recommendation can be given.

Age of Onset↗

Complications of percutaneous endoscopic gastrostomy with or without concomitant antireflux surgery in 96 children.

BACKGROUND/PURPOSE: A study was conducted of the complications of percutaneous endoscopic gastrostomy (PEG) with or without antireflux surgery (ARS). METHODS: A retrospective review was conducted of all patients, receiving a PEG in the period January 1993 through December 1997. Patients' characteristics including underlying disease, indications, results of preoperative screening, and complications were recorded. PEG placement was performed with the Seldinger technique and, in some cases, under laparoscopic control. In the event of a pathologic pH study during preoperative screening, laparoscopic antireflux surgery (ARS) was added. RESULTS: Mean age was 5 years and 10 months. The majority of the children were mentally retarded. The main indications for PEG were vomiting, food refusal, inability to swallow, and aspiration. Fifty-nine patients had PEG without ARS. Nineteen of these patients had concomitant laparoscopy. Thirty-seven patients had PEG with ARS. One patient died postoperatively of gastric leakage. PEG-related complications occurred in 31% of the patients. There was a significant higher incidence of complications in the group of patients that underwent ARS together with PEG compared with PEG placement without ARS. Roughly half of the complications were peristomal infection related to the use of T-fasteners and the other half gastroduodenal obstruction caused by the balloon of the gastrostomy catheter, both preventable complications. Preoperative vomiting without a positive pH-study disappeared in most cases after PEG placement. Although the pH study normalized in 34 of 37 patients after concomitant ARS, vomiting persisted in 7 of 17 patients. PEG improved the nutritional status in 75% of the children. CONCLUSIONS: PEG improved the nutritional status in the majority of the children. However, PEG placement can lead to a considerable amount of complications, especially when combined with ARS. ARS together with PEG is successful in treating GER but does not necessarily cure preexistent vomiting. PEG alone cures vomiting in 80% of the patients and rarely leads to vomiting. There seems no good reason for combining PEG with ARS. Only if symptoms progress after PEG, ARS should be considered. Caretakers and patients should be well informed before placement.

Adolescent↗

Laparoscopic duodenoduodenostomy for duodenal atresia.

A 3,220-g newborn baby with trisomy 21 presented with duodenal atresia. No other congenital malformations were diagnosed. Informed consent for a laparoscopic approach was obtained. The child was placed in a supine, head-up position slightly rotated to the left at the end of a shortened operating table. The surgeon stood at the bottom end with the cameraperson to his left and the scrub nurse to his right. The screen was at the right upper end. Open insertion of a cannula for a 5-mm 30 degrees telescope through the inferior umbilical fold was performed. A carbon dioxide (CO2) pneumoperitoneum with a pressure of 8 mmHg and a flow of 2l/min was established. Two 3.3-mm working cannulas were inserted; one in the left hypogastrium and one pararectally on the right at the umbilical level. Two more such cannulas were inserted; one under the xyphoid for a liver elevator and one in the right hypogastrium for a sucker. Mobilization of the dilated upper and collapsed lower duodenum was easy. After transverse enterotomy of the upper duodenum and longitudinal enterotomy of the distal duodenum, a diamond-shaped anastomosis with interrupted 5 zero Vicryl sutures were performed. The absence of air in the bowel beyond the atresia increased the working space and greatly facilitated the procedure. The technique proved to be easy, and the child did very well. Laparoscopic bowel anastomosis in newborn babies had not been described previously. Recently, a diamond-shaped duodenoduodenostomy for duodenal atresia was performed. The technique proved to be simple and is described in detail. The child did very well.

Down Syndrome↗

Laparoscopic refundoplication in children.

BACKGROUND: Gastroesophageal fundoplication currently is one of the three most common major operations performed on infants and children by pediatric surgeons in the United States. With the advent of laparoscopic surgery, the number of gastroesophageal fundoplications has virtually exploded. Morbidity always was substantial with this operation, and laparoscopy has not changed this. We describe our results with laparoscopic refundoplication in infants and children. METHODS: From December 1993 to December 1998 100 children underwent a laparoscopic 180 degrees anterior wrap using the Thal procedure. Four children had to undergo a laparoscopic refundoplication. Two of these children were mentally handicapped. All of the children had recurrent symptoms, but only two of the four had an abnormal pH study. In three of the children, the Thal procedure was changed to a Nissen (n = 2) and Toupet (n = 1) fundoplication. One child with an intrathoracic wrap and a giant hiatal hernia underwent hernia repair with a Goretex patch and a redo-Thal. RESULTS: In two of the children, the operation was relatively simple. For one child, the procedure had to be converted for anesthesiologic reasons. The procedure in the fourth child was more difficult because of a large hiatal hernia. Within a follow-up time of 2 to 4 years, all the children were free of pathologic gastroesophageal reflux symptoms and afterward displayed no recurrence. CONCLUSION: In children, laparoscopic refundoplication after a previous laparoscopic antireflux Thal procedure is feasible and does not increase morbidity.

Adolescent↗

Laparoscopic secondary antireflux procedure after PEG placement in children. Percutaneous endoscopic gastrostomy.

BACKGROUND: This study investigates the feasibility of performing a subsequent laparoscopic antireflux procedure after former placement of a percutaneous endoscopic gastrostomy (PEG). METHODS: Between 1997 and 1998, five patients with a gastrostomy in place presented with an indication for laparoscopic antireflux procedure due to persisting vomiting. RESULTS: All patients were managed laparoscopically with a four-trocar technique. CONCLUSIONS: Primary PEG placement has no adverse effects on a later secondary antireflux procedure. In some cases, four rather than five trocars can be used.

Child↗