Publications by authors named "Douglas Jamieson"

Introduction Umbilical venous catheters (UVCs) are standardly used for central venous access in acutely sick neonates. Complications associated with UVCs include thrombosis, infection, diffuse intravascular coagulopathy, arrhythmia, tamponade, and liver injury, many of which are related to misplacement of the catheters. Therefore, this study aimed to institute a policy of obtaining lateral and frontal radiographs to improve the determination of the UVC position.

View Article and Find Full Text PDF

Arthrochalasia type Ehlers-Danlos Syndrome (EDS) is a connective tissue disease characterized by severe generalized joint hypermobility, congenital bilateral hip dislocations, and recurrent joint subluxations and dislocations. Only one study has reported bone fragility resulting in fractures. The genetic abnormality underlying this disorder is a variant in the gene causing entire or partial loss of exon 6, resulting in defective type 1 collagen synthesis.

View Article and Find Full Text PDF

Aims: Wireless capsule endoscopy (WCE) and magnetic resonance enterography (MRE) are increasingly utilized to evaluate the small bowel (SB) in Crohn's disease (CD). The primary aims were to compare the ability of WCE and MRE to detect SB inflammation in children with newly diagnosed CD, and in the terminal ileum (TI) to compare them to ileo-colonoscopy. Secondary aims were to compare diagnostic accuracy of WCE and MRE and changes in Paris classification after each study.

View Article and Find Full Text PDF

Purpose: Congenital lung abnormalities are rare malformations increasingly detected early by prenatal ultrasound. Whether management of these frequently asymptomatic lesions should be surgical or conservative is an unresolved issue. The necessary prospective studies are limited by the absence of a widely accepted practical classification system.

View Article and Find Full Text PDF

Background/purpose: Abdominoscrotal hydrocele (ASH) is an uncommon entity. Until now, the recommended treatment has been surgical. There is only one successful case of nonoperative management reported in literature.

View Article and Find Full Text PDF

Background: The manipulations, casts, and Botox(®) method for treating idiopathic clubfoot is an alternative non-surgical treatment method. Botox(®)-induced reversible muscle paralysis of the gastrocsoleus enables a physician to manipulate and cast the clubfoot in greater dorsiflexion. Ultrasound is incorporated during the early treatment stages to monitor the underlying physiology of the muscle-tendon unit following Botox(®).

View Article and Find Full Text PDF

Magnetic resonance imaging (MRI) has profoundly changed and improved the investigation of abdominal and pelvic inflammatory bowel disease (IBD) in pediatrics. Using an imaging modality without ionizing radiation is of particular advantage because the pediatric IBD population is young and often requires repeat evaluation. MRI of the pelvis has become the imaging gold standard for detecting and monitoring perianal disease while bowel-directed imaging techniques (eg, enterography, enteroclysis and colonography) can accurately evaluate bowel inflammation in IBD.

View Article and Find Full Text PDF

Background: Although blunt injury to the spleen and liver can lead to pseudoaneurysm formation, current surgical guidelines do not recommend follow-up imaging. Controversy exists regarding the clinical implications of these traumatic pseudoaneurysms as well as their management.

Methods: Retrospective review of children treated nonoperatively for isolated blunt liver and spleen trauma between 1991 and 2008 was undertaken.

View Article and Find Full Text PDF

Purpose: Langerhans cell histiocytosis is a rare idiopathic disorder, characterized by the infiltration of 1 or more organs by large mononuclear cells. It can develop at any age. Pulmonary Langerhans cell histiocytosis (PLCH) is found more frequently and is better described in adults than in children.

View Article and Find Full Text PDF

Background And Objective: The diagnosis of paediatric cancer requires multidisciplinary cooperation to achieve both a timely diagnosis and efficient resource use. The authors undertook a 12-month audit of paediatric cancer cases to assess BC's Children's Hospital's (Vancouver, British Columbia) diagnostic process from the perspective of quality (timing and accuracy of diagnosis) and procedural efficiency, with an emphasis on the impact on resource use in the departments of radiology, pathology, anesthesia and surgery.

Methods: Malignancies (excluding brain and cortical bone primary tumours, for which the preoperative diagnostic workup is often completed before admission) diagnosed between January 1 to December 31, 2003, were reviewed.

View Article and Find Full Text PDF

Scoliosis surgical constructs, using pedicle screws, provide increased fixed penetrable points for rod attachment. This allows improved curve correction and increases hardware stability. We have implemented a multidetector CT evaluation of the spine with post-process image manipulation to aid pedicle screw placement for deformity correction.

View Article and Find Full Text PDF

Os odontoideum can lead to instability of the atlantoaxial joint and places the spinal cord at significant risk for acute catastrophic events after minor trauma or chronic neurological change. We present two cases of os odontoideum in pediatric patients that were not appreciated at earlier remote imaging but were, in retrospect, detectable. One patient presented with an acute spinal cord injury.

View Article and Find Full Text PDF

Background: Knowledge of the extent of aganglionic bowel is important for preoperative planning of trans-anal surgery in patients with Hirschsprung's disease (HD).

Objective: To evaluate the accuracy of the transition zone, as identified by contrast enema study, for identifying the extent of aganglionic bowel.

Materials And Methods: A total of 32 patients with preoperative contrast enema studies and pathologic identification of aganglionic extent were reviewed.

View Article and Find Full Text PDF

Background/purpose: Localized intestinal perforation (LP) is thought to be a distinct entity when compared with perforation associated with necrotizing enterocolitis (NEC). Studies have indicated that LP is more amenable to percutaneous drainage and associated with a better outcome. We sought to determine whether LP and NEC could be distinguished based on clinical parameters alone.

View Article and Find Full Text PDF

Objective: We compared barium studies of the small bowel with multidetector CT (MDCT) in the evaluation of the small bowel during the initial presentation of inflammatory bowel disease in a pediatric population.

Subjects And Methods: This was a prospective study. Eighteen children undergoing workup for inflammatory bowel disease underwent MDCT, colonoscopy, and barium studies of the small bowel before commencement of therapy.

View Article and Find Full Text PDF

Background: Atelectasis is more frequent and more severe in children anesthetized for CT scan than it is in children sedated for CT scan.

Objective: To determine the effect of increased inspiratory pressure on atelectasis during chest CT in anesthetized children.

Materials And Methods: Atelectasis on chest CT was assessed by two observers in three groups of patients.

View Article and Find Full Text PDF