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1.
Semin Cardiothorac Vasc Anesth ; 23(4): 387-392, 2019 Dec.
Article in English | MEDLINE | ID: mdl-31431142

ABSTRACT

Objective. Deep tracheal extubation using dexmedetomidine is safe and provides smooth recovery in children with congenital heart disease undergoing cardiac catheterization. Design. Single-institution, retrospective study of prospectively collected data. Participants. All patients aged between 1 month and 5 years who underwent general endotracheal anesthesia for diagnostic and interventional cardiac catheterizations in the cardiac catheterization suite from January 2015 (change in standard operating procedure) through October 2016 (approval of institutional review board for study). Measurement and Main Results. One hundred and eighty-nine patients (81%) of the 232 patients who underwent cardiac catheterization during the study period were noted to undergo deep tracheal extubation. Cyanotic heart disease was present in 87 patients (46%), history of prematurity in 51 (27%), and pulmonary hypertension in 26 (14%) patients. A documented smooth recovery in the postoperative care unit (PACU) requiring no additional analgesics or sedatives was observed in 91% of the patients. The majority of patients required no airway support after deep extubation (n = 140, 74%, P = .136). The presence of pulmonary hypertension (odds ratio = 4.45, P = .035) and presence of a cough on the day of the procedure (odds ratio = 7.10, P = .03) were significantly associated with the use of oxygen or use of oral airway for greater than 20 minutes in the PACU. After extubation, there were no reported events of aspiration, the use of noninvasive positive pressure ventilation, reintubation, heart block, or systemic hypotension requiring treatment or cardiac arrest. Conclusions. Deep extubation using dexmedetomidine in infants and toddlers after cardiac catheterization is feasible and enables smooth postoperative recovery with minimal adverse effects.


Subject(s)
Airway Extubation/methods , Cardiac Catheterization/methods , Dexmedetomidine/administration & dosage , Heart Defects, Congenital/surgery , Hypnotics and Sedatives/administration & dosage , Child, Preschool , Humans , Infant , Postoperative Care , Retrospective Studies
2.
Paediatr Anaesth ; 27(8): 821-826, 2017 Aug.
Article in English | MEDLINE | ID: mdl-28618193

ABSTRACT

BACKGROUND: The incidence of infiltration and extravasation when using peripheral intravenous catheters is high in pediatric patients. Due to the lack of a gold standard test to confirm intravascular location of a peripherally placed intravenous catheter, we introduce a novel method, the color-flow injection test to assess the intravascular location of these catheters. For the color-flow injection test, 1 mL of normal saline was injected within 2 seconds in the distal intravenous catheter and changes in color-flow via ultrasonography were observed at the proximal draining veins. The primary objective of the study was to demonstrate feasibility of the color-flow injection test. METHODS: A prospective study was conducted on children <18 years old undergoing general anesthesia. All peripheral intravenous catheters were subject to the color-flow injection test and standard confirmation tests. RESULTS: Out of the 100 patients enrolled, 22 patients came to the operating room with preexisting peripheral intravenous catheters. Intraoperatively, 105 attempts were made on 78 patients of which 27 catheters were considered as infiltrated during their placement. A final set of 100 catheters were considered for intraoperative usage after they had passed at least one of the standard confirmatory tests. For the color-flow injection test, the ideal sites for ultrasound evaluation of proximal draining veins were the axillary veins and femoral veins. The color-flow injection test was positive in 93 of the 100 catheters with color-flow changes noticed in the proximal veins during the saline injection. Of the 100 catheters, infiltration around seven catheter sites were observed within 2 hours of intraoperative usage and the color-flow injection test was negative in these seven catheters. The color-flow injection test was also negative in the 27 catheters that had infiltrated during their placement. The color-flow injection test was sensitive at 100% [95% confidence interval (CI)=95-100] and specific at 100% (95% CI=56-100) to indicate intravascular location. CONCLUSION: We were able to confirm intravascular location of peripheral intravenous catheters using the color-flow injection test in pediatric patients. The test can lead to early recognition of malfunctioning peripheral intravenous catheters and decrease rate of infiltration-extravasation injuries associated with their use.


Subject(s)
Catheterization, Peripheral , Catheters , Echocardiography, Doppler, Color/methods , Anesthesia, General , Feasibility Studies , Female , Humans , Infant , Infant, Newborn , Intraoperative Period , Male , Prospective Studies , Reproducibility of Results , Sensitivity and Specificity , Ultrasonography , Veins/diagnostic imaging
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