Publications by authors named "Ricardo Falcon"

Background: The retention of gastric contents at surgery presentation is a risk factor for perioperative aspiration. A preoperative fasting (nil per os; NPO) interval is widely used to reduce this risk, but this approach is based on assumptions about the prevalence of typical gastric emptying rates. We assessed NPO guidelines' reliability with ultrasound (US) imaging and suction in pediatric patients presenting for single long-bone fracture repair after appropriate NPO intervals, when nearly all should have had empty stomachs.

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Premedication in anesthesia has long been used to reduce patient anxiety, increase patient compliance, and supplement the overall anesthetic. In pediatric populations, premedication also has the indirect benefits of reducing parental anxiety as well as both the incidence and severity of emergence delirium. Oral midazolam, selected for its ease of administration, short duration of action, and reliable anxiolytic and amnestic effects, has been a favorite choice in this role for decades.

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Pulmonary aspiration is a severe complication in patients receiving anesthesia for surgical procedures. The risk and severity of aspiration are significantly higher in the presence of substantial gastric contents. Bedside ultrasound imaging of the gastric antrum is emerging as a rapid and valuable method to evaluate gastric contents before surgery.

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Anesthetic management of children with a post-tonsillectomy hemorrhage can be challenging. The patients may be anemic and hypovolemic and are at increased risk of having a difficult airway due to active bleeding, vomiting, and anatomical issues. A clot may also interfere with viewing the larynx, further exacerbating the difficulty of intubation.

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In this case report, we present a critical situation during an open calvarial reconstruction involving an 11-month-old infant. The patient experienced accidental extubation, requiring immediate intervention while in the prone position. Approximately two hours post-incision, ventilation became increasingly difficult due to a significant leak detected in the system.

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Mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS) syndrome is a complex and infrequently encountered mitochondrial cytopathy. Patients with MELAS often present with multi-systemic manifestations, making their anesthetic management particularly challenging. In this case report, we describe in detail our anesthetic approach for a 19-year-old male with confirmed MELAS linked to an m.

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Sclerotherapy with bleomycin can cause cosmetic complications, including flagellate dermatitis and hyperpigmentation, induced or exacerbated by microtrauma to the skin. We report a case of a 9-year-old pediatric patient with congenital vascular malformations in which a cohesive bandage (eg, 3M Coban) was utilized to prevent bleomycin-induced hyperpigmentation. Postoperatively and on follow-up, there were no signs of hyperpigmentation or dermatitis in our patient.

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We present a case of a four-year-old male with a history of giant omphalocele who underwent ultrasound-guided Botox injection to bilateral anterior abdominal wall musculature in preparation for definitive repair. Botox administration was successfully combined with preoperative subfascial tissue expanders to achieve definitive midline closure of the anterior abdominal wall defect. Our experience suggests that Botox can be safely used as part of the treatment plan for giant omphalocele repair.

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Unlabelled: The use of video-assisted thoracic surgery (VATS) as an approach for early-stage lung cancer treatment has revealed benefits compared to open surgery by minimizing trauma to the patients. This trend has brought the evolution of VATS to less and less invasive methods, eventually leading to the development of Uniportal VATS (UniVATS) technique. This new approach has shown to be resourceful, proving its feasibility even for complex oncological procedures.

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We present a pediatric patient with postdural puncture headache after a lumbar puncture, who was successfully treated with a sphenopalatine ganglion block. An uneventful autologous epidural blood patch had been placed 2 days before, but the patient reported a recurrence of symptoms after about 5 hours. Sphenopalatine ganglion block is well described in the treatment of postdural puncture headache for the obstetric population, but examples of its use in the pediatric population are not described.

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Background: Apneic nasal oxygenation (ApOx) prolongs the time to desaturation during intubation of adult patients, but there is limited prospective evidence for apneic oxygenation in pediatric patients.

Aims: We hypothesized that ApOx during operating room intubation of pediatric patients by inexperienced learners would prolong the interval before desaturation.

Methods: This prospective observational study compared intubation data for 196 pediatric surgical patients intubated by learners under baseline practice (no nasal cannula), to 160 patients enrolled after adoption of routine apneic nasal cannula oxygenation at 5 L/min.

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We present a rare case of a 7-month-old infant who developed a pseudomeningocele 16 days after an uneventful caudal catheter placement. The patient did not exhibit neurological deficits or signs of infection, and the mass increased in size with Valsalva maneuver. Pseudomeningocele, an abnormal collection of cerebrospinal fluid around an opening in the dura mater, can be iatrogenic or traumatic.

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Background: The North American Pediatric Craniofacial Collaborative Group (PCCG) established the Pediatric Craniofacial Surgery Perioperative Registry to evaluate outcomes in infants and children undergoing craniosynostosis repair. The goal of this multicenter study was to utilize this registry to assess differences in blood utilization, intensive care unit (ICU) utilization, duration of hospitalization, and perioperative complications between endoscopic-assisted (ESC) and open repair in infants with craniosynostosis. We hypothesized that advantages of ESC from single-center studies would be validated based on combined data from a large multicenter registry.

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Background: The Pediatric Craniofacial Collaborative Group established the Pediatric Craniofacial Surgery Perioperative Registry to elucidate practices and outcomes in children with craniosynostosis undergoing complex cranial vault reconstruction and inform quality improvement efforts. The aim of this study is to determine perioperative management, outcomes, and complications in children undergoing complex cranial vault reconstruction across North America and to delineate salient features of current practices.

Methods: Thirty-one institutions contributed data from June 2012 to September 2015.

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Nitric oxide (NO) synthase (NOS) inhibition with N(omega)-nitro-L-arginine (L-NNA) produces L-NNA hypertensive rats (LHR), which exhibit increased sensitivity to voltage-dependent Ca(2+) channel-mediated vasoconstriction. We hypothesized that enhanced contractile responsiveness after NOS inhibition is mediated by depolarization of membrane potential (E(m)) through attenuated K(+) channel conductance. E(m) measurements demonstrated that LHR vascular smooth muscle cells (VSMCs) are depolarized in open, nonpressurized (-44.

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