Publications by authors named "Ralph Beltran"

Pain following thoracotomy is one of the most severe forms of postoperative pain. Post-thoracotomy pain may increase the risk of post-surgical pulmonary complications, postoperative mortality, prolong hospitalization, and increase utilization of healthcare resources. To mitigate these effects, anesthesia providers commonly employ continuous epidural infusions, paravertebral blocks, and systemic opioids for pain management and improvement of pulmonary mechanics.

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Regional anesthesia is being used more frequently in pediatric anesthesia practice, including the perioperative care of neonates and infants. Adverse effects may be encountered during epidural needle placement, with catheter advancement, or subsequently during infusion of local anesthetic agents. Despite applying standard practice of care regarding placement of epidural catheter, epidural catheter-related infections may still occur.

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Features of Noonan syndrome include a distinctive facial appearance, short stature, a broad or webbed neck, congenital heart disease, bleeding problems, skeletal malformations, and developmental delay. Although pulmonary stenosis is most commonly reported, up to 20% of patients have hypertrophic cardiomyopathy (HCM). We report the use of a combined spinal-caudal epidural anesthesia technique during urologic surgery (pyeloplasty) in an 8-week-old infant with Noonan syndrome and HCM.

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Regional anesthesia is being used more frequently in pediatric anesthesia practice, including the perioperative care of neonates and infants. Adverse effects may be encountered during epidural needle placement, with catheter advancement, or subsequently during infusion of local anesthetic agents. We present the rare occurrence of a persistent cerebrospinal fluid (CSF) leak following inadvertent dural puncture (wet tap) during attempted placement of an epidural catheter in a 6-year-old child.

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Unlabelled: AAP guidelines recommend infants less than 6 months of age are monitored for at least 2 hours following surgery. This retrospective study evaluated if adherence to the 2-hour monitoring guideline decreased the risk of adverse events associated with ambulatory procedures in infants younger than 6 months.

Methods: We queried the hospital's electronic medical record to identify patients younger than 6 months of age who received anesthetic care from January 2015 to March 2020.

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Purpose: To review experience with outpatient spinal anesthesia (SA) from a single center in infants ≤6 months of age.

Methods: Retrospective review of all SAs performed in the ambulatory setting in the outpatient surgery centers in infants ≤6 months of age from 2016 to 2020, focusing on success rate, adverse events, post-anesthesia care unit (PACU) times, and emergency department (ED) or urgent care (UC) returns within 7 days of the operation.

Results: The study cohort included 175 SAs performed on 173 patients ≤6 months of age.

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Background: Various criteria exist for defining difficult intravenous access (DIVA) in infants and children. The current study evaluated the factors associated with DIVA in a prospective cohort of over 1000 infants and children presenting for anesthetic care.

Methods: This was a prospective, observational study of patients aged 0 to 18 years undergoing elective surgical or radiologic procedures under general anesthesia.

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Background: Recent data in adult patients indicate that the use of sugammadex compared to neostigmine for reversal of neuromuscular block (NMB) was associated with a significant reduction in the risk of composite postoperative pulmonary complications. Despite the clinical significance of pulmonary complications in children, studies exploring the role of NMB reversal in the risk of these complications are currently unavailable.

Method: We performed a propensity score-matched retrospective study using the Pediatric Health Information System (PHIS) dataset spanning the years 2016 and 2020.

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Background: Epidural anesthesia in infants undergoing open abdominal surgery has the potential to reduce opioid consumption, lower pain scores, and expedite tracheal extubation. We evaluated associations between use of continuous epidural chloroprocaine and improved intra- and post-operative outcomes.

Methods: This matched retrospective cohort study first identified 24 patients who between April 2018 through December 2019 were treated with a caudal catheter and epidural chloroprocaine infusion for a laparotomy at postnatal age of 6 months or less.

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Background: Anaphylactic reactions to antigens in the perioperative environment are uncommon, but they have a potential to lead to serious morbidity and/or mortality. The incidence of anaphylactic reactions is 1:37 000 pediatric anesthetics, and substantially less than the 1:10 000 to 1:20 000 incidence in the adult population. Neuromuscular blocking agents, latex, and antibiotics are the most frequently cited triggers.

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Background: Various criteria exist for defining difficult peripheral intravenous (DPIV) cannulation in infants and children. With the help of a survey tool, the characteristics perceived to increase the likelihood of DPIV cannulation amongst anesthesia providers were assessed.

Methods: An individualized survey regarding DPIV which included pediatric anesthesiology faculty and certified registered nurse anesthetists at Nationwide Children's Hospital and anesthesiology faculty members of Wake-up Safe was conducted.

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Background: Perioperative aspiration, while rare, is a serious complication of anesthetic care. Consequences of aspiration may include physical obstruction, wheezing, and pneumonia, resulting in mild to severe hypoxemia and even death.

Aim: We used a multi-institutional registry of pediatric patients to identify factors that influence the rate and resulting harm of perioperative pulmonary aspiration.

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Introduction: The use of regional anesthesia techniques continues to expand in a wide variety of surgical procedures as the benefits and safety are increasingly appreciated. Limb-lengthening procedures are often associated with significant postoperative pain and high opioid requirements which may impact patient's recovery and increase risk of chronic pain and long-term opioid use.

Methods: The current study retrospectively reviews our experience utilizing a novel peripheral nerve catheter (PNC) protocol for postoperative pain management in patients undergoing elective limb-lengthening procedures.

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There continues to be focus on the value of regional and neuraxial anesthetic techniques when combined with general anesthesia to improve postoperative analgesia. The reported advantages include decreased postoperative opioid requirements, decreased medication-related adverse effects, decreased hospital length of stay, and increased patient satisfaction. Orthopedic procedures of the hip may be amenable to such techniques as there is significant postoperative pain with the requirement for hospital admission and the administration of parenteral opioids.

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Background: Anesthesia services are frequently provided outside of the traditional operating room environment for children. It is unclear if adverse events which occur in off-site anesthetizing locations result in more severe outcomes compared to events in traditional operating rooms.

Aim: We used a multi-institutional registry of pediatric patients to compare outcomes of perioperative adverse events between location types.

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Background: There are few comparative data on the analgesic options used to manage patients undergoing minimally invasive repair of pectus excavatum (MIRPE). The Society for Pediatric Anesthesia Improvement Network was established to investigate outcomes for procedures where there is significant management variability. For our first study, we established a multicenter observational database to characterize the analgesic strategies used to manage pediatric patients undergoing MIRPE.

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Pentalogy of Cantrell is a rare syndrome consisting of midline abnormalities involving the heart, sternum, abdominal wall, and the anterior and pericardial diaphragm. This combination of defects places patients at particular perioperative risk and requires individualized management during anesthetic care. The following report documents the management of a patient with pentalogy of Cantrell, whose condition was further complicated by severe midline craniofacial abnormalities, including large anterior encephalocele, deficient mandible, tethered tongue, and cleft palate.

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Objectives: General anesthesia or sedation can facilitate the completion of diagnostic radiological studies in children. We evaluated the incidence, predictors, and causes of adverse events (AEs) when general anesthesia is provided for diagnostic radiological imaging.

Methods: Deidentified data from 24 pediatric tertiary care hospitals participating in the Wake-Up Safe registry during 2010-2015 were obtained for analysis.

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Background: The distance from the dura to spinal cord is not uniform at different vertebral levels. The dura to spinal cord distance may be a critical factor in avoiding the potential for neurological injury caused by needle trauma after a dural puncture. Typically, the greater the dura to spinal cord distance, the larger the potential safety margin.

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Background And Objectives: Perineural dexamethasone has been demonstrated to extend postsurgical analgesia after peripheral nerve blockade in adults. The mechanism of action of dexamethasone as a regional anesthetic adjuvant is unclear as intravenous dexamethasone has been shown to have similar analgesic efficacy as perineural dexamethasone. The efficacy of perineural dexamethasone has not been previously explored in the pediatric population.

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Background: Umbilical hernia repair is a common pediatric surgical procedure. While opioid analgesics are a feasible option and have long been a mainstay in the pharmacological intervention for pain, the effort to improve care and limit opioid-related adverse effects has led to the use of alternative techniques, including regional anesthesia. The current study prospectively compares the analgesic efficacy of three techniques, including caudal epidural blockade, peripheral nerve blockade, and local wound infiltration, in a double-blinded study.

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Introduction: Although the Nuss procedure provides excellent cosmetic results for the correction of pectus excavatum, the provision of analgesia following such procedures can be challenging.

Methods: The current study retrospectively reviews our experience over a 2.5 year period with thoracic epidural analgesia (TE), paravertebral blockade (PVB), and intravenous opioids delivered via patient-controlled analgesia (PCA) to provide postoperative analgesia.

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Background: Traumatic injury of the femur resulting in femoral fracture may result in significant postoperative pain. As with other causes of acute pain, regional anesthesia may offer a benefit over conventional therapy with intravenous opioids. This study prospectively assesses the effects of femoral nerve blockade with a lateral femoral cutaneous nerve block (FN-LFCN) on intraoperative anesthetic requirements, postoperative pain scores, and opioid requirements.

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Background: Femoral nerve blockade (FNB) provides effective postoperative analgesia in children undergoing arthroscopic knee surgery as evidenced by their opioid-sparing effects and decreased postoperative pain scores. Increasing the local anesthetic concentration in peripheral nerve blockade for adults undergoing orthopedic surgery has been shown to be beneficial, increasing block success rate, and providing a longer duration of analgesia. The effect of increasing the concentration of local anesthetic in extremity blocks in children remains largely unexplored.

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