Publications by authors named "Jeffrey L Koh"

Background: Research describing the experience of youth with autism spectrum disorders in the perioperative setting is limited. This study compared youth with autism spectrum disorder to typically developing children in the perioperative setting and examined group differences in: child anxiety, parent anxiety, premedication patterns, induction compliance, and changes in behavior postprocedure.

Methods: Participants were 60 youth (32 with autism spectrum disorder, 28 typically developing) of ages 2-19 years undergoing outpatient surgery and their parents.

View Article and Find Full Text PDF

Study Objective: Prior research has indicated that children with developmental delay (DD) experience qualitative and quantitative differences in health care (Boulet et al., 2009). In the perioperative setting, there is concern that children with DD may be more likely to experience postoperative complications including agitation and nausea/vomiting than typically developing patients (TDP).

View Article and Find Full Text PDF

Opioids are often prescribed to children for pain relief related to procedures, acute injuries, and chronic conditions. Round-the-clock dosing of opioids can produce opioid dependence within 5 days. According to a 2001 Consensus Paper from the American Academy of Pain Medicine, American Pain Society, and American Society of Addiction Medicine, dependence is defined as "a state of adaptation that is manifested by a drug class specific withdrawal syndrome that can be produced by abrupt cessation, rapid dose reduction, decreasing blood level of the drug, and/or administration of an antagonist.

View Article and Find Full Text PDF

Object: Infantile and late-infantile neuronal ceroid lipofuscinoses (NCLs) are invariably fatal lysosomal storage diseases associated with defects in lysosomal enzyme palmitoyl-protein thioesterase 1 (PPT-1) or tripeptidyl peptidase 1 (TPP1) activity. Previous preclinical studies have demonstrated that human CNS stem cells (HuCNS-SCs) produce both PPT-1 and TPP1 and result in donor cell engraftment and reduced accumulation of storage material in the brain when tested in an NCL mouse model.

Methods: HuCNS-SC transplantation was tested in an open-label dose-escalation Phase I clinical trial as a potential treatment for infantile and late-infantile NCL.

View Article and Find Full Text PDF

Despite advances in antiepileptic medication therapy, a significant number of pediatric patients with epilepsy have seizures that are not well controlled. This article provides anesthesiologists with an overview of seizures in the pediatric population, including evaluation, medical treatment, surgical options, and the anesthetic implications of caring for this special population.

View Article and Find Full Text PDF

Objective: To describe the differences in intraoperative opioid dosing and associated outcomes in children with and without cerebral palsy (CP).

Background: Previous work on children with cognitive impairment has suggested that they receive less intraoperative opioid than children without cognitive impairment. This finding may be due to a common concern that impaired children are hypersensitive to the adverse effects of opioids.

View Article and Find Full Text PDF

Objective: The Comparison of Venipuncture and Venous Cannulation Pain After Fast-Onset Needle-Free Powder Lidocaine or Placebo Treatment trial was a randomized, single-dose, double-blind, phase 3 study investigating whether a needle-free powder lidocaine delivery system (a sterile, prefilled, disposable system that delivers lidocaine powder into the epidermis) produces effective local analgesia within 1 to 3 minutes for venipuncture and peripheral venous cannulation procedures in children.

Methods: Pediatric patients (3-18 years of age) were randomly assigned to treatment with the needle-free powder lidocaine delivery system (0.5 mg of lidocaine and 21 +/- 1 bar of pressure; n = 292) or a sham placebo system (n = 287) at the antecubital fossa or the back of the hand 1 to 3 minutes before venipuncture or cannulation.

View Article and Find Full Text PDF

Objectives: The purpose of this study was to compare sleep of adolescents with chronic pain and healthy adolescents using both subjective and objective sleep assessments, and to identify correlates of poor sleep.

Methods: Forty adolescents (n=20 with chronic pain and n=20 healthy adolescents), aged 12 to 17 years (72.5% female) participated.

View Article and Find Full Text PDF

Craniosynostosis, premature closures of the skull sutures, results in dysmorphic features if left untreated. Brain growth and cognitive development may also be impacted. Craniosynostosis repair is usually performed in young infants and has its perioperative challenges.

View Article and Find Full Text PDF

Background: Laser-assisted drug delivery (LAD) has the potential for facilitating topical anesthesia with reduced onset time.

Methods: In this randomized, double-blind, crossover study we compared the efficacy and adverse event profile of LAD for topical anesthesia before venipuncture using two output energies (2.0 and 3.

View Article and Find Full Text PDF

Objectives: The authors' objective was to describe the effect of recurrent pain symptoms on the health-related quality of life (HRQOL) of children and adolescents with cystic fibrosis (CF). Frequent pain, independent of disease severity, was hypothesized to be associated with broad decrements in physical, psychological, and social functioning.

Methods: Forty-six children and adolescents (mean age 12.

View Article and Find Full Text PDF

Unlabelled: We describe a 12-year-old patient with severe, protracted complex regional pain syndrome type I. His pain did not respond to gabapentin, amitriptyline, physical therapy, opioids, or nonsteroidal drugs. Sympathetic or regional block was not attempted because of persistent bacteremia and severe local sepsis.

View Article and Find Full Text PDF

Pain is important to assess and treat in children with cystic fibrosis (CF), because pain symptoms may limit children's ability to participate in their CF-related care and may reduce their overall well-being and quality of life. The aims of this study were to: 1) assess acute and chronic pain symptoms as reported by children with CF, and 2) examine the relationship between pain symptoms and disease severity as measured by percentage of forced expired volume in 1 sec (FEV1%). Forty-six children completed a self-report questionnaire assessing characteristics of chronic disease-related pain (frequency, intensity, duration, associated emotional upset, and location of pain).

View Article and Find Full Text PDF

Background: Topical anesthetics may help reduce discomfort associated with procedures involving needle-puncture, such as intravenous (i.v.) insertions, in children.

View Article and Find Full Text PDF

Both children and adults with cognitive impairment (CI) have historically been excluded from research examining pain. This is unfortunate since patients with CI may be at higher risk for experiencing pain or having their pain undertreated due to the difficulty of pain assessment and communication. There are now several published reports about the general pain experience of both adult and pediatric patients with cognitive impairment.

View Article and Find Full Text PDF