A warning: don't be stumped by stump appendicitis.

When an emergency medicine physician evaluates a child with abdominal pain and a history of appendectomy, appendicitis is often excluded from the differential. We present a case of a 16-year-old boy who developed stump appendicitis 3 years after laparoscopic appendectomy. Knowledge of this rare phenomenon in children can lead to timely diagnosis and avoid the significant additional morbidity associated with perforation of the stump.

Are facilities following best practices of pediatric abdominal CT scans?

BACKGROUND: Established guidelines for pediatric abdominal CT scans include reduced radiation dosage to minimize cancer risk and the use of intravenous (IV) contrast to obtain the highest-quality diagnostic images. We wish to determine if these practices are being used at nonpediatric facilities that transfer children to a pediatric facility. METHODS: Children transferred to a tertiary pediatric facility over a 16-mo period with abdominal CT scans performed for evaluation of possible appendicitis were retrospectively reviewed for demographics, diagnosis, radiation dosage, CT contrast use, and scan quality. If CT scans were repeated, the radiation dosage between facilities was compared using Student t-test. RESULTS: Ninety-one consecutive children transferred from 29 different facilities had retrievable CT scan images and clinical information. Half of CT scans from transferring institutions used IV contrast. Due to poor quality or inconclusive CT scans, 19 patients required a change in management. Children received significantly less radiation at our institution compared to the referring adult facility for the same body area scanned on the same child (9.7 mSv versus 19.9 mSv, P = 0.0079). CONCLUSION: Pediatric facilities may be using less radiation per CT scan due to a heightened awareness of radiation risks and specific pediatric CT scanning protocols. The benefits of IV contrast for the diagnostic yield of pediatric CT scans should be considered to obtain the best possible image and to prevent additional imaging. Every facility performing pediatric CT scans should minimize radiation exposure, and pediatric facilities should provide feedback and education to other facilities scanning children.

Splenic conservation: variation between pediatric and adult trauma centers.

OBJECTIVES: Nonoperative management of hemodynamically stable children and adolescents with splenic injury regardless of grade has become standard; however, numerous studies have shown a wide variation in management. We compared the treatment and outcomes of adolescent splenic injuries in our region, which includes a pediatric level I trauma center (PTC) and an adult level I trauma center (ATC). METHODS: A retrospective review of the trauma registry was performed on patients 14 to 17 y old with blunt splenic injury admitted to either the local PTC or ATC from January 1999 through December 2010. Demographics, interventions, and hospital course were recorded and compared using Fisher exact, Student t-test, and multivariate analysis. RESULTS: Eighty-six adolescent patients presenting to the PTC and 65 patients presenting to the ATC met the criteria over the 12-y period. Although the ATC received more significantly injured and slightly older patients, logistic multivariate analysis demonstrated that the location of presentation was the only independent factor associated with splenectomy (P = 0.0015). A higher injury severity score was associated with a longer length of stay (LOS), but the nonoperative approach was not associated with a longer LOS (P = 0.96). CONCLUSIONS: Our study demonstrates that the location of presentation was independently associated with splenectomy while controlling for a higher injury severity score at the ATC. With the higher percentage of nonoperative management, treatment at the PTC was not associated with an increased LOS (total or intensive care unit).

Computed tomography scanning in pediatric trauma: opportunities for performance improvement and radiation safety.

BACKGROUND: Recently, pediatric CT scanning protocols have reduced radiation exposure in children. Because evaluation with CT scan after trauma contributes to significant radiation exposure, we reviewed the CT scans in children at both initial presentation at a non-pediatric facility and subsequent transfer to a level I pediatric trauma center (PTC) to determine the number of scans, body area scanned, radiation dosage, and proportion of scans at each facility. METHODS: The trauma database was retrospectively reviewed for children aged 0 to 17 y initially evaluated for trauma at another facility and then transferred to our PTC for pediatric specialty care between January 2000 and December 2010. RESULTS: A total of 1562 patients with 1335 CT scans were reviewed over an 11-y period. The majority of CT scans occur at the referring facility compared to the PTC in a ratio of 7:3. CT of the head was the most frequent scan obtained (52%), and 17.9% of CT scans were repeated at the PTC. Less than 1% of CT scans performed at the non-pediatric centers contained radiation dosage information, precluding analysis of radiation exposure. CONCLUSIONS: The majority of CT scans for trauma occur at non-pediatric facilities, which demonstrates the need for referring facilities to perform optimal CT scans with the least amount of radiation exposure to the child. We believe this provides an opportunity for PTC performance improvement by facilitating the transfer of images and educating referring facilities about indications for CT scans, dosage amounts, and radiation reduction protocols.

A review of pathophysiology and management of fetuses and neonates with meconium ileus for the pediatric surgeon.

PURPOSE: Meconium ileus (MI) is the earliest clinical manifestation of cystic fibrosis (CF), occurring in up to 20% of patients with CF. Our aim was to review and integrate current knowledge about the diagnosis and management of fetuses and neonates with MI that may aid the pediatric surgeon in caring for these patients. METHODS: We identified areas of interest including pathophysiology, prenatal diagnosis, nonoperative and operative management, postoperative management, and prognosis. We performed a Medline search using the search term meconium ileus for English language articles published in the last 20 years. We reviewed reference lists to identify other articles of historical significance. RESULTS: Meconium ileus is primarily associated with CF transmembrane (conductance) regulator mutations F508del, G542X, W1282X, R553X, and G551D, and modifier genes have been found to explain approximately 17% of the phenotypic variability. Mouse, pig, and ferret models for CF demonstrate neonatal bowel obstruction mimicking MI. Sonographic findings of hyperechoic masses and dilated bowel in a high-risk fetus are suggestive of MI. Less than 7% of low-risk fetuses with hyperechoic bowel will have MI. Contemporary series of noninvasive management with Gastrografin enema report success rates of 36% to 39%, significantly lower than historical values. The optimal surgical technique remains controversial, although primary anastomosis results in surgical complication rates between 21% and 31%, higher than those noted with delayed anastomosis. Pulmonary function for patients with CF and MI at 15 and 25 years old is similar to those without MI, although height and weight percentiles may be lower. CONCLUSIONS: This review for pediatric surgeons presents an examination of the literature and synthesizes current information about the pathophysiology, prenatal diagnosis, nonoperative and operative management, postoperative management, and prognosis of the patient with CF and MI.

Dog attack resulting in evisceration in an infant.

Severe dog bites can result in substantial morbidity and potentially fatal injury. We present a case of an infant attacked by a Staffordshire bull terrier with resultant soft tissue injury, evisceration, and bowel injury. Rapid assessment in the emergency department included evaluation for both blunt and penetrating injuries. After initial survey and resuscitation, the patient was transported to the operating room where he underwent an exploratory laparotomy, small bowel repair, and abdominal wall closure.

Late administration of antenatal vitamin A promotes pulmonary structural maturation and improves ventilation in the lamb model of congenital diaphragmatic hernia.

PURPOSE: The lungs in congenital diaphragmatic hernia (CDH) are hypoplastic and immature making respiratory support one of the most challenging aspects of caring for these neonates. Vitamin A is essential for normal lung growth and development. It also promotes alveolarization. The aim of this study is to investigate the effects of antenatal vitamin A on lung growth and alveolarization and ventilation in the lamb model of CDH. METHODS: This study was approved by the Animal Care Committee of the State University of New York at Buffalo, and conforms to the National Institute of Health guidelines. Diaphragmatic defects were created at 79-81 days gestation. Group 1 lambs (CDH, n = 5) were untreated. In group 2 (CDH + vitamin A, n = 6) and group 3 lambs (control + vitamin A, n = 3) right jugular venous catheters were inserted at 118-120 days and retinyl palmitate (vitamin A) was administered until 135 days. The control group (n = 5) consisted of twin littermates. Lambs were delivered at 136-139 days and ventilated for 2 h according to a set protocol. The left lungs were harvested and fixed for histology. RESULTS: Lung compliance was significantly higher in CDH + vitamin A (median 0.27, range 0.1-0.48 ml/cmH(2)O/kg) versus CDH lambs (median 0.07, range 0.07-0.18 ml/cmH(2)O/kg), P < 0.05. At 1 h CDH + vitamin A lambs experienced significantly lower PaCO(2) (median 115, range 35-194 mmHg vs. median 192, range 168-234 mmHg) and higher arterial pH (median 7.0, range 6.74-7.35 vs. median 6.73, range 6.5-6.81) than CDH lambs, P < 0.05. The lung weight to body weight ratio of CDH + vitamin A lambs was significantly less than that of CDH lambs (P < 0.05). Histology showed small thick walled air-spaces and no true alveoli in CDH lambs. In contrast, true alveoli and thinning of the inter-alveolar septums were seen in CDH + vitamin A lambs. CONCLUSION: This is the first study to demonstrate an improvement in lung function and structural maturation when antenatal vitamin A is given in a surgical model of CDH.

Initial experience with laparoscopic Chait Trapdoor cecostomy catheter placement for the management of fecal incontinence in children: outcomes and lessons learned.

BACKGROUND: Antegrade enemas administered through a percutaneously placed Chait Trapdoor cecostomy catheter have resulted in a marked improvement in compliance and outcome of patients with fecal incontinence. The percutaneous technique, however, is a two-step procedure that is not performed under direct vision. This report presents the results and lessons learned from our experience with the laparoscopic approach to placement of Chait cecostomy catheters. METHODS: Retrospective review of patients who underwent laparoscopic placement of Chait cecostomy catheters from 1999 to 2008. Data collected included patient demographics, primary diagnosis, hospital stay, complications, follow-up duration and outcome. RESULTS: Seventeen patients, mean age 11.8 + or - 4.2 years (range 5-17), underwent laparoscopic Chait cecostomy catheter placement over a period of 8 years. Median follow-up was 46 + or - 21 months (range 4-67). The primary diagnosis was spina bifida in 82% of patients. There was one intraoperative complication, which consisted of tangential needle placement into the cecum, and required conversion to an open procedure. Mean hospital stay was 3.8 + or - 1.5 days (range 2-7). Emergency department visits related to Chait catheter complications were mainly due to catheter dislodgement and breakage. Long-term complications included accidental dislodgement of the catheter in seven patients (41%), mechanical failure of the catheter (breaks/leaks) in six patients (35%), hypertrophic granulation tissue in six patients (35%), wound infections at the catheter site in three patients (18%), complications related to the use of fasteners in two patients (12%) and ventirculoperitoneal (VP) shunt infection in two patients (11.8%). CONCLUSION: The laparoscopic approach to Chait cecostomy catheter placement is a simple and effective procedure. The rate of long term complications such as catheter dislodgement and mechanical failure, which are responsible for the majority of unplanned ED visits, may be decreased by routine yearly catheter exchanges. VP shunt infections are the most serious complications in this patient population consisting mostly of patients with spina bifida.

Early experience with the use of rhomboid excision and Limberg flap in 16 adolescents with pilonidal disease.

BACKGROUND: Rhomboid excision with Limberg flap (RELF) repair has been shown to be effective in the management of pilonidal disease (PD) in adults. Wide excision allows complete removal of diseased tissue, and the rotational flap allows tensionless coverage as well as helps flatten the natal crease, which is believed to contribute to the recurrence of PD. METHODS: This study is a retrospective review of all adolescents who underwent excision of pilonidal disease using RELF at a single institution for a period of 18 months. RESULTS: Sixteen adolescents with PD were treated with RELF during this period. All procedures were completed with no intraoperative complications. Mean operative time and hospital stay were 92 +/- 30 minutes and 1.8 +/- 0.29 days, respectively. Mean follow-up was 11 +/- 6.0 months. One patient had recurrence of his disease, and one needed prolonged wound care after wound breakdown. Six others had minor complications including 4 patients (25%) who had superficial wound separation that resolved promptly with dressing change. One patient had a superficial wound infection. One patient had residual pain. CONCLUSION: Rhomboid excision with Limberg flap is effective in the management of PD in adolescents. The 6% recurrence rate is similar to that reported in the adult literature. Despite the limitations of this study, the low morbidity, hospital stay, and recurrence rate noted with our initial experience are very encouraging.

Lawn mower-related projectile injury.

Lawn mower injuries are a potentially devastating, yet preventable cause of morbidity and mortality in the pediatric population. The sequelae to these injuries can become even worse if the initial presentation goes unsuspected by medical staff, leading to a delay in treatment. The authors report the case of a lawn mower-related penetrating missile injury, where the extent of injury was not appreciated by the patient until signs and symptoms of a soft-tissue infection developed, prompting the patient to seek medical attention the next day.

Laparoscopic excision of a newborn rectal duplication cyst.

Congenital rectal duplication cyst is a rare entity treated with surgical excision. Without treatment, a rectal duplication cyst may cause a variety of complications, most notably, transforming into a malignancy. We report on a 7-week-old girl who was found to have a rectal duplication cyst. The rectal duplication cyst was successfully excised laparoscopically. Rectal duplication cysts are rare alimentary tract anomalies generally discovered during childhood. Complications include symptoms arising from the cyst and the possibility of malignant degeneration. They are typically managed by surgical excision.

Of snakes and babies: intrathoracic stomach and vertebral rachischisis. A serpentine-like syndrome?

Snakes have intrathoracic stomachs and rachischisis-like spinal vertebrae. These anomalies are rare in babies and have not been previously described in combination in the English medical literature. Here we present 2 cases of total intrathoracic stomach with a foreshortened esophagus, cervical spine rachischisis, and splenic anomalies in newborns. Both had 46, XX karyotypes. The first case was initially treated with mobilization of the stomach into the abdomen. However, at 18 months the stomach was found to have retracted back into the thorax. Subsequently, the patient received a Collis gastroplasty and G-tube. Two-year follow-up is available. The second case exhibited the abovementioned anomalies along with absence of toes 3 and 4 on the right foot, and cardiac anomalies not compatible with life. The parents chose to withdraw support. The encountered abnormalities may be explained by a first trimester mesenchymal insult and share some similarities with the VACTERL association. In our experience, mobilization of the stomach into the abdomen without elongation of the esophagus will fail. If tolerated, the management of the intrathoracic stomach should include preoperative intragastric feedings to allow time for gastric enlargement followed by a Collis gastroplasty. The management of cervical rachischisis requires assessment of cervical spine stability and cervical immobilization. As other life-threatening birth defects may be present, thorough evaluation should be completed before counseling the families of the treatment options available.

Congenital bilateral absence of the vas deferens.

A 10-year-old boy with cystic fibrosis (CF) (DeltaF508/G551D mutation) underwent an uneventful elective interval laparoscopic appendectomy. During routine laparoscopic inspection of the abdomen and groins, congenital bilateral absence of the vas deferens was noted. Pictures of the patient's internal inguinal ring noted at time of laparoscopy are presented and compared with a similar-aged patient's internal ring with a normal vas deferens. The genetics of CF patients associated with congenital bilateral absence of the vas deferens is reviewed. The pediatric or general surgeon performing a herniorrhaphy should be aware of this anomaly in CF patients.

Gastrointestinal malrotation with volvulus in an adult.

Case presentation and literature review for intestinal malrotation presenting in an adult. Although the number of patients with this condition that escape infancy undiagnosed is not clear, it is clear that when the rare patient presents as an adult it can be a perplexing situation for surgeons not familiar with the presenting signs and anatomy. This confusion can lead to diagnostic and intraoperative errors.

Clinical and molecular characteristics of staphylococcal skin abscesses in children.

Forty-nine children with skin abscesses (36 methicillin-resistant Staphylococcus aureus and 13 methicillin-susceptible S. aureus) exhibited similar disease severity. Both pathogen groups were pulse field type USA300, multilocus sequence type 8, and possessed Panton-Valentine leukocidin genes. Related microbial genetic architecture may account for similarities in disease severity despite differences in antibiotic susceptibility.

Laparoscopic inversion and ligation inguinal hernia repair in girls.

Inguinal hernia repair is one on the most frequently performed operative procedures in pediatric surgery. The technique of high ligation of the hernia sac has been described for over a century and has proven to be a highly effective and durable repair. Several laparoscopic repairs have been described but, at least in boys, all of them have a slightly higher recurrence rate. This may be due to the fact that they leave an intact sac that has been sutured closed. We describe a technique in girls in which the sac is grasped, inverted, and then ligated with an endoloop. This technique is simple and can be performed quickly. Using 3-mm instruments without trocars minimizes the length of the incisions and postoperative pain is almost nonexistent. Furthermore, with the addition of the leash technique, dissection of an adherent ovary can be done without damaging the sac. We have performed this procedure in over 30 patients and have had no recurrences. We believe that this could become the laparoscopic repair of choice in females with inguinal hernias.