Laparoscopic cholecystectomy in pediatric patients

Effect of two different levels of positive end-expiratory pressure (PEEP) on oxygenation and ventilation during pneumoperitoneum for laparoscopic surgery in children: A randomized controlled study

Background:

Positive end-expiratory pressure (PEEP) is used to attenuate the changes in respiratory parameters because of pneumoperitoneum during laparoscopic (LAP) surgery. As the ideal level of PEEP during LAP in children is not known, this study compared the effect of 5- and 10–cm H₂O of PEEP on oxygenation, ventilator, and hemodynamic parameters during pediatric LAP.

Method:

After obtaining approval from the Institute Ethics Committee and written informed parental consent, 30 American Society of Anesthesiologists (ASA) I and II children aged 2–10 years, undergoing LAP were randomized to receive PEEP of 5- or 10–cm H₂O during pneumoperitoneum. Baseline hemodynamic and ventilatory parameters, PaO₂, and PaCO₂ were measured 2 min after tracheal intubation, 2 min and 1 h after pneumoperitoneum, and after deflation of pneumoperitoneum. Oxygenation index, dynamic compliance, and alveolar-arterial oxygen gradient (D (A-a) O₂) were calculated at the above-mentioned time points. Data were analyzed using Student's t-test and repeated measures ANOVA with Bonferroni correction.

Results:

The oxygenation index and D(A-a)O₂ decreased in PEEP 5 Group and increased in PEEP 10 Group after pneumoperitoneum, the difference between the two groups being statistically significant (P = 0.001). The dynamic compliance decreased in PEEP 5 Group and increased or remained the same in PEEP 10 Group after pneumoperitoneum, the difference between the two groups being significant (P = 0.001). There were no significant changes in the hemodynamic parameters in the two groups.

Conclusion:

Use of 10-cm H₂O PEEP during pneumoperitoneum in children improves ventilation and oxygenation, without significant hemodynamic changes.

Laparoscopic Versus Open Cholecystectomy in Pediatric Patients: A Propensity Score-Matched Analysis

Background: As minimally invasive pediatric surgery becomes standard approach to many surgical solutions, access has become an important point for improvement. Laparoscopic cholecystectomy (LC) is the gold standard for many conditions affecting the gallbladder; however, open cholecystectomy (OC) is offered as the initial approach in a surprisingly high percentage of cases. Materials and Methods: The Kids' Inpatient Database (1997-2012) was searched for International Classification of Disease, 9th revision, Clinical Modification procedure code (51.2x). LC and OC performed in patients <20 years old were identified. Propensity score-matched analyses using 39 variables were performed to isolate the effects of race, income group, location, gender, payer status, and hospital size on the percentage of LCs and OCs offered. Cases were weighted to provide national estimates. Results: A total of 78,578 cases were identified, comprising LC (88.1%) and OC (11.9%). Girls were 1.6 (CI: 1.4, 1.7) times more likely to undergo LC versus boys. Large facilities were 1.4 (1.3, 1.7) times more likely to perform LCs than small facilities. Children in lower income quartiles were 1.2 (1.1, 1.3) times more likely to undergo LC compared with those in higher income quartiles. Rates of LC were not affected by race, hospital location, or payer status. Conclusions: Risk-adjusted analysis of a large population-based data set demonstrated evidence that confirms, but also refutes, traditional disparities to minimally invasive surgery access. Despite laparoscopic gold standard, OC remains the initial approach in a surprisingly high percentage of pediatric cases independent of demographics or socioeconomic status. Additional research is required to identify factors affecting the distribution of LC and OC within the pediatric population.

Laparoscopic cholecystectomy in children with sickle cell anemia and the role of ERCP

BACKGROUND

Patients with sickle cell anemia (SCA) have a high incidence of cholelithiasis and choledocholithiasis. This report is an analysis of our experience with laparoscopic cholecystectomy (LC) for children with SCA and the role of endoscopic retrograde cholangiopancreatography (ERCP).

PATIENTS AND METHODS

The records of children with SCA who had cholecystectomy were retrospectively reviewed for age, sex, hemoglobin level, hemoglobin electrophoresis, indication for cholecystectomy, operative time, hospital stay, and postoperative complications. They were divided into 2 groups, open cholecystectomy (OC) group and LC group, and the 2 were compared in terms of operative time, hospital stay, and postoperative complications.

RESULTS

Over a period of 15 years (January 1995 and December 2009), 94 children with SCA had cholecystectomy. Thirty-five (19 males and 16 females) had OC, 52 (28 males and 24 females) had LC, and 7 (4 males and 3 females) had LC and splenectomy. Their age ranged from 4 to 15 years (mean, 11.4 y). The indications for cholecystectomy were biliary dyspepsia and biliary colic (55), acute cholecystitis (7), obstructive jaundice (17), asymptomatic (12), and biliary pancreatitis (3). All those who had OC underwent intraoperative cholangiogram, 9 of them (25.7%) had common bile duct (CBD) exploration and 2 transduodenal sphincterotomy. Of those who had LC, 13 (25%) underwent preoperative ERCP, which was normal in 1, showed dilated CBD with no stones in 2, and dilated CBD with stones in 7. In 3, ERCP showed dilated CBD with enlarged, inflammed papilla suggestive of recent stone passage. Nine underwent endoscopic sphincterotomy and stone extraction followed by LC. There was no mortality; 1 (2.1%) required conversion to OC and another underwent postoperative exploration because of bleeding from an accessory cystic artery. In the LC group, 4 (7.7%) developed minor postoperative complications, whereas 8 (22.9%) in the OC group developed complications.

CONCLUSIONS

With proper perioperative management, LC is feasible, safe, and superior to OC in children with SCA with regard to postoperative complications, duration of hospital stay, cosmetic appearance, and postoperative recovery. LC should be the treatment of choice for both symptomatic and asymptomatic cholelithiasis in children with SCA. ERCP is a valuable diagnostic and therapeutic investigation both preoperatively and postoperatively. The sequential approach of endoscopic sphincterotomy and stone extraction followed by LC is a safe and effective approach for the management of cholelithiasis and choledocholithiasis in children with SCA.

Single-incision laparoscopic cholecystectomy in children: a feasible alternative to the standard laparoscopic approach

PURPOSE

Our aim was to evaluate the outcomes of the single-incision laparoscopic (SIL) cholecystectomy compared with the standard 4-incision laparoscopic (SL) cholecystectomy.

METHODS

A retrospective chart review of consecutive patients undergoing cholecystectomy using the SIL approach from January 2008 to September 2010 was performed. These patients were compared with a cohort who underwent an SL cholecystectomy from January 2007 to June 2009. Demographics, operative times, length of stay, blood loss, and intravenous narcotic use was obtained from the charts. A nonpaired Student's t test was used to determine statistical significance.

RESULTS

We identified 40 patients in the SIL group and 68 in the SL group. Main diagnosis was cholelithiasis followed by gallstone pancreatitis and cholecystitis. The mean operative time for SIL cholecystectomies was 79.2 minutes vs 63 minutes in the SL group (P < .006). The average length of stay was 1.9 days in the SIL group vs 2.3 days in the SL group (P < .24). The mean intravenous narcotic use was 1 dose in the SIL group vs 2.9 doses in the SL group (P < .007). There were no intraoperative complications. At 1-month postoperative follow-up, all patients had satisfactory recovery.

CONCLUSION

Single-incision laparoscopic cholecystectomy is a safe and feasible alternative to the standard laparoscopic approach in children, even in the setting of acute disease.

Role of ERCP in the era of laparoscopic cholecystectomy for the evaluation of choledocholithiasis in sickle cell anemia

AIM: To evaluate the role of endoscopic retrograde cholangiopancreatography (ERCP) for choledocholithiasis in patients with sickle cell anemia (SCA) in the era of laparoscopic cholecystectomy (LC).

METHODS: Two hundred and twenty four patients (144 male, 80 female; mean age, 22.4 years; range, 5-70 years) with SCA underwent ERCP as part of their evaluation for cholestatic jaundice (CJ). The indications for ERCP were: CJ only in 97, CJ and dilated bile ducts on ultrasound in 103, and CJ and common bile duct (CBD) stones on ultrasound in 42.

RESULTS: In total, CBD stones were found in 88 (39.3%) patients and there was evidence of recent stone passage in 16. Fifteen were post-LC patients. These had endoscopic sphincterotomy and stone extraction. The remaining 73 had endoscopic sphincterotomy and stone extraction followed by LC without an intraoperative cholangiogram.

CONCLUSION: In patients with SCA and cholelithiasis, ERCP is valuable whether preoperative or postoperative, and in none was there a need to perform intraoperative cholangiography. Sequential endoscopic sphincterotomy and stone extraction followed by LC is beneficial in these patients. Endoscopic sphincterotomy may also prove to be useful in these patients as it may prevent the future development of biliary sludge and bile duct stones.

Laparoscopic splenectomy and/or cholecystectomy for children with sickle cell disease

BACKGROUND

In 1991, Delaitre reported the first laparoscopic splenectomy (LS). Since then LS has become the procedure of choice to treat hematological diseases requiring splenectomy. The Eastern province of Saudi Arabia is known to have a high incidence of hemoglobinopathies including sickle cell disease (SCD), which is known to be associated with complications necessitating splenectomy and/or cholecystectomy. This report describes our experience with LS and/or laparoscopic cholecystectomy (LC) for children with SCD.

PATIENTS AND METHODS

The medical records of all children with SCD who had LS and/or LC were retrospectively reviewed for age, sex, indication for splenectomy, operative time, hospital stay, and post-operative complications. The results were compared to a similar group of children with SCD who had open splenectomy (OS) and/or open cholecystectomy (OC).

RESULTS

Over a period of 3.5 years (January 2005 and June 2008), a total of 45 children had LS with or without LC, 30 (66.7%) of them had SCD. Their age ranged from 2 to 12 years (mean 7 years). There were 16 males and 14 females. In all, LS was done because of recurrent splenic sequestration crisis except one who had a large spleen with multiple infarcts that was causing abdominal pain. The operative time ranged from 1.5 to 9 h (mean 2.75 h). Their hospital stay ranged from 3 to 9 days (mean 4.5 days). There was no mortality. Two patients (6.7%) required conversion to OS due to a large-sized spleen and severe adhesions in one and uncontrolled intra-operative bleeding in the other. The results were compared to a group of 120 children with SCD who had OS only (88) and OS with OC (32). From 1994 to 2006, a total of 55 children had LC only, 47 (26 M:21 F) of them (85.5%) had SCD. Their age ranged from 4 to 15 years (mean 11.4 years). The indications for cholecystectomy were: biliary dyspepsia (20), biliary colic (35), acute cholecystitis (5), obstructive jaundice (5), asymptomatic (6), and biliary pancreatitis (1). There was no mortality, but one (2.1%) required conversion to OC because of severe adhesions and another underwent postoperative exploration because of bleeding from an accessory cystic artery. The results were compared to a similar group of 27 children with SCD who underwent OC.

CONCLUSIONS

With good peri-operative management, LS is feasible and safe in children with SCD and can be done concomitantly with cholecystectomy. Currently, it requires more operative time than the open approach. This is specially so for children with SCD who are known to have a large spleen with severe adhesions. It is, however, superior to OS with regard to duration of hospital stay, cosmetic appearance, post-operative complications, and post-operative recovery. LC is also safe in children with SCD. When compared with OC, it is associated with less post-operative complications, a shorter hospital stay, better cosmetic appearance and a faster recovery.

Anaesthetic considerations for laparoscopic surgery in neonates and infants: a practical review

Minimally invasive surgery is being applied to an increasing number of neonates and infants undergoing abdominal surgeries. Knowledge of specific implications, patient's health status and pathophysiological changes induced by the surgery allow the anaesthesiologist to provide safe anaesthesia to these high-risk patients. This chapter describes the specific pathophysiological effects, peri-operative management, major complications and contraindications related to endoscopic procedures.

Current concepts in minimal access surgery for children

Since the introduction of minimal access surgery to general surgeons in the 1980s, pediatric surgeons have been employing this innovative technology to perform surgery on children. Video technology and miniaturized instruments have brought the laboratory to the operating room; in many cases several small incisions are the only access necessary to perform complicated procedures that would otherwise require a large wound. Additional benefits of minimal access surgery may include reduced postoperative analgesic requirements, shortened length of stay, and faster resumption of normal activities. Increased operative costs offset some of these gains. The pediatric surgical community has embraced minimal access techniques for some operations; others remain controversial.

Laparoscopic fundoplication in mentally normal children with gastroesophageal reflux disease

Laparoscopic antireflux surgery has been performed in neurologically impaired and scoliotic children. We aimed to assess the effectiveness of laparoscopic fundoplication in mentally normal children with gastroesophageal reflux disease that failed to respond to medical therapy. Data were prospectively collected (symptoms, medical therapy, endoscopies' findings) on 12 children (nine boys, three girls) aged 9-15 years with gastroesophageal reflux disease. Pre- and postoperative ambulatory 24-h pH and DeMeester and Johnson scores were also recorded. Effectiveness of surgery was assessed by comparison of pre- and postoperative total acid exposure time, Visick grade, need for antireflux medication and symptom scores. In total, 11 children underwent a laparoscopic Nissen fundoplication and one underwent a Toupet procedure. Median length of stay was 2 (2-3) nights. The median preoperative pH acid exposure time (AET) was 4.7 (0.8-16.4) percent compared with postoperative AET of 0.4 (0-3) percent. Early postoperative dysphagia occurred in four out of 12 patients, requiring a total of six dilatations. Postoperative Visick scores were: grade I=7 and grade II=5. Laparoscopic fundoplication can be safely performed and is effective in children with GERD who have failed to respond to medical therapy.

[Cholelithiasis in children with sickle cell disease: experience of a French pediatric hospital]

BACKGROUND

Gallstones are frequently encountered in sickle cell disease. Their complications are difficult to distinguish from vaso-occlusive abdominal pain and they can sometimes threaten the patient's life. The aim of this study was to describe our local experience with cholelithiasis in children with sickle cell disease.

PATIENTS AND METHODS

We analyzed the follow-up records and abdominal sonography results of 185 children with sickle cell anemia, aged zero to 18 years, followed up in Trousseau Children's Hospital (Paris) from 1982 to 1998.

RESULTS

Cholelithiasis was detected in 26 patients. The youngest patient was five years old. Cholelithiasis was discovered because of clinical manifestations in 12 patients. Asymptomatic cholelithiasis patients developed clinical manifestations in 28% cases in a maximum delay of two and a half years after its diagnosis. Laparoscopic cholecystectomy was performed in nine cases and open cholecystectomy in 17 cases. The mean postoperative length of stay was significantly shorter in the group of patients with laparoscopy in comparison with the group with open cholecystectomy. Histologic analysis of the gallbladders noted 85% of acute or chronic cholecystis.

CONCLUSION

We suggest that cholelithiasis should be carefully sought in the presence of abdominal manifestations in sickle cell patients. We recommend that annual abdominal sonography be performed in sickle cell patients as early as seven years of age and elective cholecystectomy be performed on patients with cholelithiasis.

Results and complications of laparoscopic cholecystectomy in childhood

BACKGROUND

The purpose of our study was to evaluate the results and complications of laparoscopic cholecystectomy in a case series of 110 infants.

METHODS

Over a 5-year period (1993-98), we performed laparoscopic cholecystectomy in 110 pediatric patients. Surgery was performed at different institutions by three different surgeons. The patient population was composed of 69 girls and 41 boys; their ages ranged from 1 to 16 years (median, 8.5). All of the 110 children had symptomatic cholelithiasis, which was confirmed at ultrasound examination. An associated pathology was present in 27 patients (sickle cell disease in 17 cases, hereditary spherocytosis in seven cases, thalassemia in three); the other 83 infants were affected by idiopathic cholelithiasis. In 107 patients, the operation was performed using four ports; in three patients, it was done using five ports. In three patients, we also performed a concomitant splenectomy.

RESULTS

Median duration of simple cholecystectomy was 45 min (range, 25-75) and hospital stay ranged from 1 to 10 days (median, 2). Only 15 children required drainage. We had 17 complications in our series (15.5%), including a gallbladder perforation during dissection in 11 patients, a fall of stones into the abdominal cavity during extraction in one patient, and a trocar orifice infection in the postoperative period in five patients. At a maximum follow-up of five years (range, 1-5), all patients were doing well.

CONCLUSION

Laparoscopic cholecystectomy in children seems to be as effective as open surgery in cases of symptomatic cholelithiasis. In pediatric patients more than in adults, an accurate and precise dissection and a sound knowledge of possible congenital biliary abnormalities are essential to avoid any kind of complication.

Elective laparoscopic cholecystectomy

BACKGROUND

Gallbladder stones are very common in patients with sickle cell disease and are the cause of recurrent abdominal pain. Their management has been highly controversial, especially for children. Nonoperated patients and those treated on an emergency basis have a very high rate of morbidity (>50%).

METHODS

We performed a retrospective review of a series of 29 homozygous SS sickle cell children who underwent laparoscopic cholecystectomy between 1991 and April 1998.

RESULTS

Only in one case a conversion was necessary (early in the series). Exploration of the common bile duct was done via intraoperative cholangiography. There were no mortalities. The morbidity rate was 17%; (however, of the five patients concerned, four suffered from hyperthermia for 2 days. All of the children were improved and enjoyed resolution of their abdominal pain.

CONCLUSIONS

We believe that elective laparoscopic cholecystectomy at the earliest time possible, along with correct perioperative management, is the treatment of choice for cholelithiasis in children with sickle cell disease.

Anesthesia for laparoscopy in the pediatric patient

Pediatric laparoscopy is a novelty that has yet to be critically assessed in large, randomized controlled trials. Just because an operation can be performed laparoscopically does not mean it must be done that way. Many procedures can now be performed more quickly and cheaply through small incisions without the added cardiorespiratory risks seen in laparoscopy. Reports of serious complications are beginning to appear in publications. It will become important to compare laparoscopic techniques with both open surgery and the minimally invasive approach for the same procedure. Many published studies suggest laparoscopy offers significant advantages for some operations and for sicker patients. Practitioners must have a thorough understanding of the physiologic changes that follow pneumoperitoneum and extremes of positioning. As enthusiasm builds, it is essential to maintain safety standards. Endoscopists must be appropriately trained and peer reviewed. The use of virtual reality models now allows surgeons to develop and perfect their laparoscopic skills. When the laparoscopic approach is difficult, surgeons must be willing to convert to open surgery rather than persevere and risk iatrogenic damage. The role of pediatric laparoscopy has yet to be defined, although current trends suggest that it will assume an important position in pediatric surgery.

Cholelithiasis and cholecystitis in children

With advances in medical technology, including intensive care, new medications, alterations in the composition of parenteral nutrition, and the institution of minimally invasive surgery, our understanding of the spectrum of diseases of the gallbladder resulting in stone formation or inflammation, and the management of these disorders has changed over the past few decades. The discussion herein focuses on our thinking about the current diagnosis and treatment for these disorders.

Cardiocirculatory changes during videolaparoscopy in children: an echocardiographic study

We examined cardiovascular changes associated with intra-abdominal insufflation in 20 children (mean age 6.1+/-4.7 years, ASA physical status I or II) undergoing laparoscopic surgery with general anaesthesia using echocardiography with a transthoracic approach. Intra-abdominal pressure never exceeded 10 mmHg. Systolic blood pressure, diastolic blood pressure, endtidal CO2, peak, and mean airway pressure increased during intra-abdominal insufflation (P < 0.001). Pneumoperitoneum was associated with increases (P<0.001) in left ventricular enddiastolic volume, left ventricular end-systolic volume and left ventricular endsystolic meridional wall stress. In addition, before, during and after intra-abdominal insufflation, left ventricular fractional shortening and left ventricular ejection fraction, underwent slight, insignificant changes. Pneumoperitoneum in children has a major impact on cardiac volumes and function, mainly through the effect on ventricular load conditions. The sharp increase in intra-abdominal pressure affects both preload and afterload, while systolic cardiac performance remains unchanged.

Laparoscopic cholecystectomy in children: lessons learned from the first 100 patients

BACKGROUND/PURPOSE

Laparoscopic cholecystectomy is a very common operation in adults but is relatively infrequently required in children. A retrospective review of 100 consecutive infants and children undergoing laparoscopic cholecystectomies from 1990 to 1998 was performed to see what lessons have been learned from this relatively large population of pediatric patients.

RESULTS

The patients ranged in age from 25 to 230 months, with a mean of 105 months. Only 19 patients had hemolytic disease as the etiology for their cholelithiasis. Two patients had biliary dyskinesia. Seventy-eight patients underwent an elective operation. Twenty-two children required urgent hospitalization because of complications from their cholelithiasis: acute cholecystitis (n = 7), jaundice and pain (n = 6), gallstone pancreatitis (n = 5), acute biliary colic (n = 4). All 6 patients who presented with jaundice underwent endoscopic retrograde cholangiopancreatography (ERCP) before their laparoscopic cholecystectomy. Two patients required laparoscopic choledochal exploration. The operating time and postoperative hospitalization were significantly longer (P = .0005) in the complicated group when compared with the elective patients. No significant complications such as the need for reoperation, injury to the choledocuhus or to other viscera, bile leak, or retained choledocholithiasis occurred.

CONCLUSIONS

Laparoscopic cholecystectomy is a safe, effective procedure in children for removal of the gallbladder. The exact role of routine cholangiography and ERCP remains unclear.

Laparoscopic surgery in children

The surgeon should be aware of the extensive applications of endoscopic surgery in the pediatric patient. The ability to provide surgical care in association with either outpatient or short-stay hospitalizations appear to be cost-effective and appropriate state-of-the-art medical care. Because the array of surgical instruments continues to evolve, new and innovative endoscopic procedures will continue to become increasingly available.

Microinvasive laparoscopic cholecystectomy in pediatric patients

Although cholelithiasis is uncommon in children, its laparoscopic treatment has progressively become more popular among pediatric surgeons. This is due in part to the fact that compared with the open technique, laparoscopic treatment is less invasive as well as more cost-effective. A review of the literature indicates that it has been customary to use at least one 10-mm port to permit application of the 10-mm endoscopic clip applier for ligation of the cystic duct and artery. We report our experience with two patients in whom a laparoscopic cholecystectomy was performed by use of a 5-mm endoscopic clip applier and a 3-mm laparoscope. The application of a 5-mm clip applier obviated the need for a 10-mm port. It also saved an additional step by eliminating the exchange from the laparoscope to the 10-mm endoscopic clip applier through the 10-mm port. Furthermore, the use of a 3-mm telescope through the smallest port (<5 mm) would achieve a better cosmetic outcome.

Laparoscopic surgery in girls and female adolescents

The realm of laparoscopic surgery has extended to include the neonate as well as the pediatric patient. The advent of new and smaller instrumentation has facilitated this goal. Previous procedures exclusively relegated to laparotomy can now be accomplished as outpatient procedures. Removal of the acute appendix, correction of torsion of an adnexa, as well as the appropriate diagnosis and initial treatment of acute pelvic inflammatory disease are now well established laparoscopic procedures. This article provides insight into the laparoscopic evaluation and management of a number of challenging clinical problems for the endoscopic surgeon, thus providing a minimally invasive approach for patients ranging from neonates to adults.

Sequential endoscopic/laparoscopic management of cholelithiasis and choledocholithiasis in children who have sickle cell disease

BACKGROUND/PURPOSE

Cholelithiasis and choledocholithiasis are common complications of sickle cell disease (SCD). With the recent advances in laparoscopic cholecystectomy (LC), which has been used successfully for the management of cholelithiasis in children who have SCD, exclusion of choledocholithiasis before LC is of great importance.

METHODS

Eighteen children who had SCD, cholelithiasis, and choledocholithiasis were treated at our hospital. Seven were treated with open cholecystectomy (OC) and common bile duct (CBD) exploration, and two were treated with transduodenal sphincteroplasty. The remaining 11 patients underwent endoscopic retrograde cholangiopancreatography (ERCP), sphincterotomy, and stone extraction followed by laparoscopic cholecystectomy (LC).

RESULTS

A dilated CBD noted on ultrasound, elevated alkaline phosphatase, elevated total bilirubin of more than 5 mg/dL, history of pancreatitis, either singly or in combination, should raise suspicion of choledocholithiasis, and these patients together with those who have choledocholithiasis detected on ultrasound should undergo ERCP to confirm and extract the stones before LC.

CONCLUSION

This sequential approach of endoscopic sphincterotomy and stone extraction followed by LC is a safe and effective approach for the management of cholelithiasis and choledocholithiasis in children who have SCD.

The management of choledocholithiasis in children in the era of laparoscopic cholecystectomy

Although laparoscopic cholecystectomy has become the procedure of choice for gallbladder removal in children, the treatment of children who have choledocholithiasis remains unclear. For adults who have suspected choledocholithiasis, preoperative endoscopic retrograde cholangiopancreatography (ERCP) is a well-described and effective approach, however, its use for common bile duct stones in children has not been defined. The authors reviewed the records of 131 consecutive children undergoing laparoscopic cholecystectomy on two surgical services to define the efficacy of ERCP followed by laparoscopic cholecystectomy in managing choledocholithiasis in children. Fourteen children were suspected of having common duct stones noted on preoperative ultrasound scan and laboratory data. At ERCP, six children had no stones visualized; eight had stones and underwent stone extraction and sphincter dilation or sphincterotomy. All 14 underwent laparoscopic cholecystectomy a mean of 3.8 days after ERCP. None of the 14 had evidence of retained stones. Only one of 117 children undergoing primary laparoscopic cholecystectomy had unsuspected common bile duct stones and was treated with laparoscopic common bile duct exploration and stone removal. A management plan incorporating ERCP followed by early laparoscopic cholecystectomy is a safe and effective strategy for children who have choledocholithiasis.

Laparoscopic cholecystectomy: The treatment of choice for cholelithiasis in infancy and childhood

Twelve consecutive laparoscopic cholecystectomies (LC) were performed between January 1994 and October 1996 at King Khalid University Hospital. In all patients the indication for cholecystectomy was symptomatic gallstones. Among the 12 children, six had sickle cell disease. The operating time ranged between 65 and 135 minutes (mean=897plusmn;21.06). There was no major morbidity or mortality. The average duration of postoperative parenteral analgesia (pethidine hydrochloride) required was 0.47+/-0.19 day (ranged between 0.3 and one day). The average postoperative stay was 1.67+/-0.44 days (ranged between 1 and 2.5 days). In conclusion, LC is safe, effective and the preferred approach for cholelithiasis in children, with the advantages of short postoperative analgesia requirement, shorter hospitalization, and therefore, an early return to normal daily activities.

Laparoscopic and thoracoscopic surgery in children and adolescents: a 3-year experience

Our initial experience over the last 3 years with laparoscopic and thoracoscopic surgery in children and adolescents is reported. Between September 1992 and August 1995, a total of 215 laparoscopic and thoracoscopic procedures were performed: 32 appendectomies for acute appendicitis, 10 cholecystectomies for symptomatic gallstones, 11 procedures for adnexal pathology, 6 laparoscopies in children with nonpalpable testes, 3 diagnostic laparoscopies, and 153 thoracoscopic sympathectomies in children suffering from primary palmar hyperhidrosis. The post-operative course was uneventful in all cases. In 2 children with acute appendicitis we converted to the open technique due to technical difficulties. We are encouraged by the results of our initial experience. There is no doubt that laparoscopic cholecystectomy, laparoscopic surgery of adnexal pathology, and thoracoscopic sympathectomy, because of their numerous benefits - shorter operative time, hospitalization, and convalescence as well as less postoperative pain and improved cosmetic results - are replacing the open techniques. We are not convinced as yet of the advantages of laparoscopic appendectomy in children; we are presently performing both laparoscopic and conventional techniques and studying the various parameters in order to reach a more definite conclusion. Various other endoscopic surgical procedures will be carefully considered in the near future.

Trends in management of gallbladder disorders in children

Gallbladder disorders have been recognized with increasing frequency in pediatric patients. This study aimed to identify recent trends in management and compare the effectiveness of laparoscopic (LC) over open cholecystectomy (OC) by a retrospective chart analysis of all cholecystectomies from 1990 through 1995. Information obtained included demographics, symptoms, predisposing conditions, associated illnesses, family history, imaging studies, type of cholecystectomy, complications, operative time, pain medication, diet recommencement, pathologic findings, and length of hospital stay. The type of cholecystectomy (OC vs. LC) was compared with the clinical variables using standard statistics. Eighty-three patients between 21 months and 18 years of age were identified; their mean age was 14.8 years. Females (76%) with classic biliary symptoms predominated;12% of the patients developed gallstone pancreatitis and 7% jaundice. Abnormal liver chemistry values, obesity, and elevated triglyceride levels comprised the most significant predisposing factors. Indications for surgery were cholelithiasis in 71 patients (86%), gallbladder dyskinesia in 10 (12%), and sludge/polyp in 2. Fifty-nine cholecystectomies (71%) were done laparoscopically and 24 (29%) open. Choledocholithiasis in 6 children (7%) was managed by open extraction with t-tube placement or endoscopic papillotomy followed by LC. No major ductal complication was identified. The predominant pathologic finding was chronic cholecystitis, including the subgroup with biliary dyskinesia. Statistical comparison showed that LC is superior to OC in regard to length of stay, diet resumption, use of pain medication, operating time, and cosmetic results. It is concluded that a contemporary diet, obesity, and abnormal liver chemistry are the main predisposing conditions of gallbladder disease in children in this decade. Females in their teenage years with typical symptoms continue to be the most commonly affected group. Persistent biliary symptoms associated with low gallbladder ejection fractions during hepatobiliary cholecystokinin-stimulated scans can be caused by dyskinesia. The method of choice to remove the diseased gallbladder in children is LC, which is safe, efficient, and superior to the conventional method. Common duct stones can be managed by simultaneous endoscopic papillotomy. The costs of LC are reduced by employing reusable equipment and selective cholangiographic indications.

Video-assisted thoracic surgery (VATS) for children with pulmonary metastases from osteosarcoma

BACKGROUND

Video-assisted thoracic surgery (VATS) may complement open thoracotomy in children with osteosarcoma requiring pulmonary metastasectomy.

METHODS

The records of children with metastatic pulmonary osteosarcoma considered for initial VATS intervention (n = 9) were reviewed.

RESULTS

Two children did not have VATS exploration: one child with multiple bilateral nodules and another child with a deep parenchymal nodule. VATS provided diagnostic biopsy material in all cases when used (n = 7). Two children had benign inflammatory lesions; four children had VATS-directed wedge resections of solitary malignant lesions; and one child had VATS biopsy of diffuse parenchymal and pleural pulmonary disease not amenable to resection. The mean operative time and hospital length of stay were 1.78 +/- 0.54 h and 3.5 +/- 1.8 days, respectively. There were two complications of VATS: bleeding in a child, requiring a transfusion, and a latent pneumothorax in a patient after removal of the chest tube.

CONCLUSION

VATS is safe, serves as an excellent diagnostic modality, complements the open thoracotomy, and may enable the surgeon to avoid more extensive procedures in selected cases.

Laparoscopic cholecystectomy in children and adolescents

During the period between August 1991 and November 1995, seven patients under age 17 were submitted to videolaparoscopic cholecystectomy (LC). Two were males and five females with ages ranging from 12 to 16 years (mean 13.8 years). The diagnosis of chronic cholecystitis with gallstones was made by the clinical history and physical and ultrasonographic examinations. There was no evidence of an association with hemolytic diseases, familial hyperlipidemia or Glucose-6-phosphate dehydrogenase (G6PD) deficiency. The surgery was performed under general anesthesia and the abdomen approached by four ports: a 10 mm umbilical incision, a 5 mm cystic, a 5 mm one at the xiphoid appendix and a 10 mm one at the left lateral margin of the left rectus abdominal muscle between the umbilical scar and the xiphoid appendix. Operative time averaged 120 minutes (105-150 min). One case required conversion to laparotomic approach because of Mirizzi's Syndrome, which was diagnosed by intraoperative cholangiography performed in all cases. There were no deaths or major postoperative complications. Hospital stays ranged from 1-3 days in the six patients submitted to LC. Thus LC in children can be considered a good method, requiring only more care regarding the use of proper equipment, complete and careful dissection of the biliary hilus, and intraoperative cholangiography. The latter is indispensable, as these children can present a higher rate of anatomic anomalies. The advantages of this techniques include a less painful postoperative period with a faster recovery, and it is especially recommended in children, who are less tolerant to physical restriction and pain than adults.

Complications of minimal-access surgery in children

Minimal-access surgery (MAS) is rapidly becoming the surgical approach of choice for a variety of surgical disorders in adults, but its use in children remains a relative novelty. Most pediatric surgeons continue to harbor justifiable concerns about the morbidity of this modality owing to the cumbersome nature of the instruments and the technical difficulty associated with two-dimensional views. The purpose of this study was to determine the complication rate and the lessons learned from the use of MAS in performing a variety of procedures in a large series of children. To determine complications, the authors reviewed the medical records of all children (n = 636; age range, 1 month to 19 years) who underwent laparoscopy (LAP) or thoracoscopy (THO) during a 5-year period (January 1, 1990 through December 31, 1994). The follow-up ranged from 1 week to 45 months. THO was performed in 62 children. Conversion to thoracotomy occurred in eight children (13%), because of inability to localize the lesion (3), unresectibility (2), inadequate tissue sample (1), unsafe access (1), hypoxemia (1), or inadvertent esophagotomy (1). Postoperatively, two ventilator-dependent children had tension pneumothorax after lung resection and required chest tubes. LAP was performed on 574 children, with conversion to laparotomy occurring in 15 (2.6%), because of technical reasons (10) or intraoperative complications (5). The complication rate of LAP was 2% (12 of 574). Early in the experience, intraoperative complications that led to laparotomy included hemorrhage during appendectomy (2), cholecystectomy (1), and splenectomy (1); and esophagotomy during a fundoplication (1). Other technical problems in the postoperative period were a malpositioned Nissen fundoplication and a gastric volvulus after gastrostomy and Nissen fundoplication owing to improper gastrostomy tube position. In addition, two children had a hernia at the umbilical trocar site that had been used for contralateral inguinal exploration, and cellulitis developed in three patients when a gastrostomy tube was brought out through a trocar site. Other complications not specific to MAS included pelvic abscess after appendectomy (5); small bowel obstruction after jejunostomy catheter placement (1) and combined cholecystectomy/appendectomy (1); enterocolitis (1) and severe hyponatremia (1) after pull-through for Hirschsprung's disease; and pneumonia after splenectomy (1). The overall complication rate of MAS was 4% (26 of 626), and there were no deaths. The initial use of MAS was associated with technical errors, which decreased with experience. Based on this study, the authors recommend (1) routine placement of a thoracostomy tube in children after THO if they require postoperative ventilator support; (2) using the open hernia sac to place a 70 degrees telescope for contralateral inguinal exploration; and (3) not using a trocar site for gastrostomy tube placement in immune-suppressed patients. With appropriate training and experience, MAS can be used safely in children, for a wide variety of diseases, with minimal morbidity and mortality.

Ectopic ureter as a cause of wetting: the role of laparoscopy in its management

A diagnosis of wetting caused by an ectopic ureter usually can be made from the history because of the characteristic pattern of wetting. Localization of the origin of the ectopic ureter is important in guiding the surgical approach. This is usually not a problem for cases of ectopic ureter arising from a duplex system. However, the single ectopic ureter arising from a small dysplastic and often ectopic kidney may defy a long search. Videolaparoscopy, with its magnifying effect, can confirm the diagnosis, localize the dysplastic kidney and allow its removal using endoscopic equipment.

Surgical technique of laparoscopic pyloromyotomy for infantile hypertrophic pyloric stenosis

We report herein a new method of performing laparoscopic pyloromyotomy for infantile hypertrophic pyloric stenosis, using refined surgical techniques. The pyloric tumor was immobilized by grasping the first portion of the duodenum and the anterior wall of the stomach, and electrocoagulation was used prior to incising the pyloric tumor to minimize bleeding during the procedure. Although this technique has been applied in only two patients so far, we present the details herein. We believe that with technical and instrumental refinements, the speed and safety of laparoscopic pyloromyotomy will improve and it will become an alternative to open surgery in pediatric patients.

Pediatric laparoscopic splenectomy

Laparoscopic surgery is becoming widely accepted as an alternative to conventional procedures. It is becoming more and more evident that laparoscopic techniques can be applied successfully to pediatric patients. Advantages of these techniques include less postoperative pain, decreased ileus, fewer pulmonary complications, and shorter hospital stays. Elective splenectomy for hematologic disease or for staging of Hodgkin's lymphoma also appears to be amenable to laparoscopic techniques. This report details 12 consecutive splenectomies successfully performed laparoscopically since July 1993. No case required conversion to laparotomy. Each case was reviewed with respect to operative time, estimated blood loss, identification of accessory spleens, time until full oral intake, analgesia requirements, and length of stay. Factors contributing to morbidity such as ileus, pulmonary complications, and would infections were evaluated. Documentation was also reviewed for late sequelae such as intestinal obstruction and incisional hernias. These patients were compared with 20 consecutively treated patients who underwent open splenectomy in the period immediately preceding the use of laparoscopic splenectomy. Laparoscopic splenectomy, in the authors' experience, is a safe alternative to open splenectomy, has few complications, is cost effective, and has been well accepted by patients and families.

Laparoscopic Nissen fundoplication in children

Laparoscopic surgery for the definitive treatment of gastroesophageal reflux (GOR) has become an accepted alternative to conventional techniques in adults. Although relatively rare, GOR in children represents an important clinical entity with symptoms including failure to thrive, nocturnal dyspnea, and vomiting. This paper details our experience in eight children who have undergone a laparoscopic Nissen fundoplication for failed medical treatment of severe GOR. Particular attention is paid to technical aspects of the procedure and the differences between adult and pediatric techniques are emphasized. The preliminary results suggest that a laparoscopic Nissen fundoplication is a safe procedure which significantly improves reflux symptoms in children and that these results are comparable to those obtained with conventional surgery.

Minimally invasive surgery in children with cancer

BACKGROUND

The safety and efficacy of minimally invasive oncologic procedures in children have not been well defined and only limited anecdotal experience has been published.

METHODS

A retrospective review of all patients undergoing either a laparoscopic or thoracoscopic procedure at Childrens Cancer Group institutions between December 1, 1991, and October 1, 1993, was performed.

RESULTS

Eighty-five children underwent 88 minimally invasive surgical procedures as part of the evaluation or treatment for cancer at 15 participating centers. In 25 patients, laparoscopy was performed and 60 patients underwent 63 thoracoscopic operations. Tissue biopsies were taken in 67 cases and diagnostic material was obtained in 99% of the biopsies. Seven complications occurred, all within the thoracoscopic group. These included conversion of six operations to an open procedure. One patient developed atelectasis postoperatively.

CONCLUSIONS

In pediatric patients with suspected cancer, laparoscopy was highly accurate with minimal morbidity; thoracoscopy was nearly as efficient with slightly higher morbidity. Both modalities are useful for assessment of resectability, for staging purposes, and for evaluation of recurrent or metastatic disease.

Laparoscopic cholecystectomy in infants and children: modifications and cost analysis

Between June 1990 and February 1993, 26 children underwent laparoscopic cholecystectomy. Their ages ranged from 25 months to 19 years (mean, 12.3 years; median, 13 years). Only six of them had hemolytic diseases associated with gallstones. Five presented with acute cholecystitis. Laparoscopic cholecystectomy was performed on these five, within 5 days of admission; the mean postoperative hospital stay was 2.5 days. The other 21 patients underwent elective cholecystectomy; their mean postoperative stay was 1 day. Several modifications have been made in our technique. Three 5-mm ports and one 10-mm umbilical port are used. In addition, direct incision of the umbilical fascia is performed with insertion of a blunt trocar and cannula rather than using the Veress needle for insufflation. The importance of positioning the epigastric cannula in the left upper quadrant in small children cannot be overemphasized. Cholangiography is now attempted in all patients and is easier with the Kumar cholangioclamp and sclerotherapy needle, under fluoroscopy. The total hospital charges for the patients who underwent elective laparoscopic cholecystectomy are compared retrospectively with those of seven children who had elective open cholecystectomy during the same period. In addition, a comparison is made between the two groups with respect to the costs of operating room equipment and postoperative pain control.

Impact of laparoscopic cholecystectomy on the management of cholelithiasis in children with sickle cell disease

Children with sickle cell disease, well known to have a high incidence of cholelithiasis, are frequently admitted to the hospital for episodes of abdominal pain. Before the advent of laparoscopy, few children with sickle cell and cholelithiasis underwent cholecystectomy unless absolutely necessary, because of the high morbidity of an open cholecystectomy (OC). We reviewed our records of all children with sickle cell disease and cholelithiasis treated from 1985 to 1992 to investigate the impact of laparoscopic cholecystectomy (LC). During that period, 32 children underwent cholecystectomy: 10 OC and 22 LC (all since December 1990). Before December 1990, all children had either classic biliary tract symptoms or abdominal pain of unknown etiology. However, of the 22 LC children, five had asymptomatic cholelithiasis. Only three of the 32 patients had choledocholithiasis, although 30 of 32 had elevated total bilirubins. Two LC children presented with choledocholithiasis and were initially treated with endoscopic sphincterotomy and stent placement. A standard intraoperative cholangiogram (IOC) through the cystic duct was performed in all OC cases. In 19 of 22 LC cases, an IOC through the gallbladder was performed before any dissection; unsuspected choledocholithiasis was not found, but the IOC did allow visualization of the course of the cystic duct, facilitating its subsequent dissection. Total operative length was comparable between the two groups, but the LC patients' postoperative length of stay was half that of the OC patients (2.1 v 4.6 days). Postoperative complications in the OC group included three children who had severe pain, atelectasis, fever, and hypoxemia (30%).

[Anesthesia for laparoscopic surgery in pediatrics]

The increasing use of laparoscopic surgery in children is associated with the enlargement of the spectrum of indications to appendicectomy, extramucosal pylorotomy and cure of oesophageal reflux. It is also linked with new problems, mainly due to physiologic modifications elicited by pneumoperitoneum and patient's posture. Although sufficient data are not yet available, the respiratory and cardiovascular modifications are probably similar to those occurring in adults, at least in children more than 4-month-old, as long as the intra-abdominal pressure remains under 15 mmHg. The use of higher intra-abdominal pressures has not been reported in children. In this case, the cardiovascular changes consist mainly in an increase in arterial pressure. In some children, non specific decreases in heart rate and in blood pressure can be observed. The latter can be elicited by a surgical complication, hypovolaemia, head-elevated position or deep anaesthesia. In the newborn and infant under 6 months, intra-abdominal pressures of 15 mmHg or more carry a risk of low cardiac output due to a decrease in contractility and compliance of the left ventricle. In this group of age it is therefore recommended to establish a pressure not higher than 6 mmHg. Moreover, in these very young children, the risk for reopening of the right-left shunts can result in heart insufficiency and systemic gas embolism. Peroperative respiratory changes include an increase in PetCO2 and more rarely a decrease in SaO2. The interpretation of the former depends on the site of gas sampling in the anaesthetic system. It is easily controlled by an increased minute ventilation. Various causes, such as bronchial intubation, inhalation of gastric contents or gas embolism, can decrease SaO2. Contra-indications for laparoscopic surgery include hypovolaemia, heart diseases, increased intracranial pressure and alveolar distension. Therefore newborns are patients at high risk in so far as their foramen ovale or their ductus arteriosus is patent, the pulmonary arterial resistances remain increased and a bronchodysplasia is existing. In some cases a special disease is often associated. As an example recurrent bronchitis or asthma is associated with an oesophageal reflux and a sickle-cell disease in patients with cholelithiasis. These patients require special pre-, per- and postoperative care for prevention of complications. Anaesthesia for laparoscopic surgery does not require a major extension of the usual security regulations. Special attention must be paid to arterial pressure. Therefore end-expiratory concentration of the halogenated anaesthetic agent should not be kept higher than 1.5 times the MAC related to the age during maintenance of anaesthesia.(ABSTRACT TRUNCATED AT 400 WORDS)

Laparoscopic gastrostomy and fundoplication

Laparoscopic gastrostomy and fundoplication are a useful alternative to open fundoplication and gastrostomy in pediatric patients. Laparoscopic fundoplication appears to decrease the length of hospital stay and allow a more rapid recovery.

Laparoscopic cholecystectomy: treatment of choice for cholelithiasis in children

Laparoscopic cholecystectomy is rapidly replacing traditional cholecystectomy as the standard treatment for cholelithiasis and cholecystitis in adults. Over a period of 16 months, 14 children with a clinical diagnosis of cholelithiasis, ranging in age from 4 to 15 years (mean 12.2), were treated. All had symptoms of abdominal pain or vomiting; one had jaundice and recurrent cholecystitis. Five children (35%) had associated metabolic or hemolytic diseases. The 14 children were operated on using the laparoscopic cholecystectomy technique. No operation was converted to open cholecystectomy, but two patients required laparotomy: one because of suspected injury to the common duct, and the other because of nonvisualization of the gallbladder during laparoscopy. The mean post-operative hospital stay for the 11 children who underwent only laparoscopic cholecystectomy (one patient also had a simple mastectomy) was 50 hours (range 48-72 hours). All children resumed their normal activities almost immediately after discharge from hospital. No long-term biliary or other complications were seen in any patient throughout an average follow-up period of 6.2 months (range 3-16 months). The benefits of this operation in children are obvious: It is safe, effective, and well tolerated.

Evolving uses of laparoscopy in children

As the technology evolves, the number of procedures that can be performed laparoscopically will continue to expand (Table 3). The impact on the field of pediatric surgery, which encompasses surgical oncology, gastrointestinal surgery, trauma, and gynecologic surgery, will be significant. There are several hurdles for the pediatric surgeon to overcome before beginning operative laparoscopy. The acquisition of the initial instrumentation is expensive, and the credentialing process may be time-consuming. And there remains a healthy suspicion on the part of many pediatric surgeons that these techniques represent a fad. We believe that operative laparoscopy has advantages and disadvantages. Some of the procedures require more time and are frequently tedious, thus trying the patience of the surgeon. It is difficult for experienced surgeons to subject themselves electively to the learning curve associated with a new procedure. While the benefits are mostly in the postoperative period, we believe exposure is vastly improved in obese patients. Patients appear to have less pain and postoperative ileus, and they may return to unrestricted activity sooner. We are still discovering which laparoscopic procedures can be done safely to the patient's advantage. Solving the dilemma of what procedures should be performed using laparoscopic techniques will require extensive experience and study, and minimally invasive surgery will be a subject of controversy and debate for many years. It is difficult to imagine that open cholecystectomy would once again become the standard. We predict that we will see a continued expansion in the types of procedures to be performed using minimal-access techniques. And in the future, we may have to justify our opening of a patient's abdomen when the procedure could have been performed laparoscopically, as is now the case for cholecystectomy in some areas of the country.

Abnormal serum IgG subclass pattern in children with Down's syndrome

Susceptibility to infections is a well known feature of Down's syndrome. The possible relation between this predisposition and the serum concentrations of the IgG subclasses was studied in 38 children with Down's syndrome aged 1-12 years. An age matched group of 50 healthy children served as controls. The serum concentrations of IgG1 and IgG3 were significantly raised among children with Down's syndrome in all three age groups studied (that is 1-2.5, 4-8, and 9-12 years). The serum concentrations of IgG2 were normal in the first two groups but significantly reduced in the third age group. In contrast, the concentrations of IgG4 among children with Down's syndrome were significantly reduced in all three age groups. Moreover, among the children with Down's syndrome aged 4-12 years 68% (15/22) had IgG4 concentrations below 2 SDs of the geometrical mean of the controls. The results may partially explain the proneness of children with Down's syndrome to infections with encapsulated bacteria. Although the underlying cause of these abnormalities is unknown, IgG subclass determination seems relevant in the clinical evaluation of children with Down's syndrome.