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result(s) for
"Murto, Kimmo"
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Pediatric tonsillectomy is a resource-intensive procedure: a study of Canadian health administrative data
by
van Walraven, Carl
,
McIsaac, Daniel I.
,
Katz, Sherri L.
in
Adenoidectomy - statistics & numerical data
,
Adolescent
,
Algorithms
2017
Background
The majority of pediatric surgeries are performed in a day surgery setting. The rate of adverse postoperative outcomes and the factors that influence them are poorly described in the Canadian setting. Concerns about the safety of adenotonsillectomy (AT) have been raised. The objective of this Ontario-based study was to determine the rates and risks of hospital readmission, emergency department (ED) visits, or deaths within 30 days following common pediatric surgeries, with an emphasis on AT.
Methods
Inpatient and day surgery children who were < 18 yr of age and undergoing one of the ten most common surgeries in Ontario from 2002-2013 were identified by linking four provincial health administrative databases. Risk of each outcome was determined separately for all surgeries. Cox regression was used to measure the association of demographics, clinical factors, Ontario drug benefit (ODB) status, and prescribed opioids with adverse outcomes.
Results
Among 364,629 children, AT accounted for 30.5% of all surgeries. The AT patient rates of readmission and ED visits compared with the full study cohort were 2.7%
vs
1.5% and 12.4%
vs
9.2%, respectively. The study cohort postoperative death rate was 0.27 per 10,000 children (95% confidence interval [CI], 0.18 to 0.39). For the study cohort, an increased risk of readmission was associated with previous urgent admission (hazard ratio [HR], 2.15; 95% CI, 1.75 to 2.63), length-of-stay ≥ four days (HR, 2.04; 95% CI, 1.57 to 2.65), Charlson comorbidity score ≥ 1 (HR, 1.61; 95% CI, 1.17 to 2.22), and age ≥ 14 yr (HR, 1.15; 95% CI, 1.02 to 1.19) or ≤ 3 yr (HR, 1.16; 95% CI, 1.15 to 1.17). Similar factors were associated with an increased risk of ED visits. Patients covered by ODB (11.8%), particularly those prescribed opioids, had an increased risk for readmission and ED visit.
Conclusions
Post-discharge readmissions and ED visits are relatively common after pediatric surgery, particularly for AT. Perioperative treatment algorithms that consider risk factors for hospital revisits are required in children.
Journal Article
Risk factors for respiratory adverse events after adenoidectomy and tonsillectomy in children with down syndrome: a retrospective cohort study
2022
Obstructive sleep apnea syndrome is a major cause of morbidity in the Down syndrome population and is commonly treated with adenoidectomy and/or tonsillectomy (AT). However, these children are at increased risk for perioperative respiratory adverse events (PRAEs). The objective of this study was to examine risk factors for major PRAEs requiring intervention in children with Down syndrome undergoing AT and to describe their postoperative monitoring environment. This retrospective study included all children with Down syndrome aged 0–18 years who underwent a preoperative polysomnogram followed by AT at a tertiary pediatric institution. Descriptive statistics were used to summarize baseline demographic and clinical characteristics. A multivariable model for prediction of PRAEs was constructed. A priori, it was decided that minimum oxygen saturation, apnea–hypopnea index, and average oxygen saturation asleep would be included, along with medical comorbidities associated with PRAEs at
p
< 0.2 in univariable analyses. Fifty-eight children were included in this study; twelve had a PRAE. Cardiac disease was associated with PRAEs on univariable analysis (
p
= 0.03). In multivariable analysis, average oxygen saturation asleep was associated with PRAEs (OR 1.50; 95% confidence interval 1.00, 2.41;
p
= 0.05). For all of the remaining variables,
p
> 0.15. Fifty-six children were admitted for monitoring overnight; four were admitted to the intensive care unit and fifty-two were admitted to the ward.
Conclusions
: A multivariable model found evidence that lower average oxygen saturation while asleep was associated with PRAEs requiring intervention in children with Down syndrome. This study highlights the difficulty in predicting complications in this population.
What is known:
•
Obstructive sleep apnea syndrome is a major cause of morbidity in the Down syndrome population and is commonly treated with adenoidectomy and/or tonsillectomy.
•
However, children with Down syndrome are at increased risk for perioperative respiratory adverse events (PRAEs) following adenoidectomy and/or tonsillectomy.
What is new:
•
We found that a lower average oxygen saturation asleep is associated with increased odds of PRAEs, adjusting for age, total apnea–hypopnea index, cardiac comorbidity, and minimum oxygen saturation.
•
This study highlights the difficulty in predicting complications in this population.
Journal Article
The impact of electronic consultation on a Canadian tertiary care pediatric specialty referral system: A prospective single-center observational study
2018
Champlain BASE™ (Building Access to Specialists through eConsultation) is a web-based asynchronous electronic communication service that allows primary-care- practitioners (PCPs) to submit \"elective\" clinical questions to a specialist. For adults, PCPs have reported improved access and timeliness to specialist advice, averted face-to-face specialist referrals in up to 40% of cases and high provider satisfaction.
To determine whether the expansion of eConsult to a pediatric setting would result in similar measures of improved healthcare system process and high provider acceptance reported in adults.
Prospective observational cohort study.
Single Canadian tertiary-care academic pediatric hospital (June 2014-16) servicing 1.2 million people.
1. PCPs already using eConsult. 2.Volunteer pediatric specialists provided services in addition to their regular workload. 3.Pediatric patients (< 18 years-old) referred for none-acute care conditions.
Specialty service utilization and access, impact on PCP course-of-action and referral-patterns and survey-based provider satisfaction data were collected.
1064 eConsult requests from 367 PCPs were answered by 23 pediatric specialists representing 14 specialty-services. The top three specialties represented were: General Pediatrics 393 cases (36.9%), Orthopedics 162 (15.2%) and Psychiatry 123 (11.6%). Median specialist response time was 0.9 days (range <1 hour-27 days), most consults (63.2%) required <10minutes to complete and 21/21(100%) specialist survey-respondents reported minimal workload burden. For 515/1064(48.4%) referrals, PCPs received advice for a new or additional course of action; 391/1064(36.7%) referrals resulted in an averted face-to-face specialist visit. In 9 specialties with complete data, the median wait-time was significantly less (p<0.001) for an eConsult (1 day, 95%CI:0.9-1.2) compared with a face-to-face referral (132 days; 95%CI:127-136). The majority (>93.3%) of PCPs rated eConsult as very good/excellent value for both patients and themselves. All specialist survey-respondents indicated eConsult should be a continued service.
Similar to adults, eConsult improves PCP access and timeliness to elective pediatric specialist advice and influences their care decisions, while reporting high end-user satisfaction. Further study is warranted to assess impact on resource utilization and clinical outcomes.
Journal Article
Ambulatory pediatric adenotonsillectomy
by
Murto, Kimmo
,
Lo, Calvin
in
Adenoidectomy - adverse effects
,
Adenoidectomy - methods
,
Airway management
2025
Purpose
This Continuing Professional Development module aims to help the general anesthesiologist recognize common pitfalls in ambulatory pediatric adenotonsillectomy and perform appropriate risk stratification, analgesic management, and disposition planning.
Principal findings
Pediatric adenotonsillectomy is a widely performed procedure. An updated approach to preoperative risk assessment of commonly associated comorbidities allows the practitioner to anticipate and plan for adverse events. Risks include obstructive sleep apnea, airway hyperresponsiveness, asthma, recent upper respiratory tract infections, obesity, and young age. Risk-modifying interventions consist of delaying surgery, preoperative bronchodilator therapy, recognizing the limitations of volatile agents, and referral of high-risk patients to specialized pediatric centres. Appropriate selection of intraoperative and postoperative analgesia can optimize patient comfort, avoid readmission, and limit adverse events such as postoperative hemorrhage or respiratory depression.
Conclusions
Ambulatory pediatric adenotonsillectomy is a common surgical procedure, performed both in the community as well as tertiary care pediatric centres. To optimize outcomes in this heterogenous patient population, anesthesiologists must risk stratify and anticipate perioperative respiratory adverse events.
Journal Article
Canadian tertiary care pediatric massive hemorrhage protocols: a survey and comprehensive national review
by
Akbari, Pegah
,
Arsenault, Valérie
,
Lieberman, Lani
in
Blood
,
Blood transfusions
,
Child mortality
2024
Hemorrhage is the leading cause of pediatric death in trauma and cardiac arrest during surgery. Adult studies report improved patient outcomes using massive hemorrhage protocols (MHPs). Little is known about pediatric MHP adoption in Canada.
After waived research ethics approval, we conducted a survey of Canadian pediatric tertiary care hospitals to study MHP activations. Transfusion medicine directors provided hospital/patient demographic and MHP activation data. The authors extracted pediatric-specific MHP data from requested policy/procedure documents according to seven predefined MHP domains based on the literature. We also surveyed educational and audit tools. The analysis only included MHPs with pediatric-specific content.
The survey included 18 sites (100% response rate). Only 13/18 hospitals had pediatric-specific MHP content: eight were dedicated pediatric hospitals, two were combined pediatric/obstetrical hospitals, and three were combined pediatric/adult hospitals. Trauma was the most common indication for MHP activation (54%), typically based on a specific blood volume anticipated/transfused over time (10/13 sites). Transport container content was variable. Plasma and platelets were usually not in the first container. There was little emphasis on balanced plasma/platelet to red-blood-cell ratios, and most sites (12/13) rapidly incorporated laboratory-guided goal-directed transfusion. Transfusion thresholds were consistent with recent guidelines. All protocols used tranexamic acid and eight sites used an audit tool.
Pediatric MHP content was highly variable. Activation demographics suggest underuse in nontrauma settings. Our findings highlight the need for a consensus definition for pediatric massive hemorrhage, a validated pediatric MHP activation tool, and prospective assessment of blood component ratios. A national pediatric MHP activation repository would allow for quality improvement metrics.
Journal Article
Canadian tertiary care pediatric massive hemorrhage protocols: a survey and comprehensive national review
by
Murto, Kimmo
,
Akbari, Pegah
,
Arsenault, Valérie
in
Anesthesiology
,
Cardiology
,
Critical Care Medicine
2024
Purpose
Hemorrhage is the leading cause of pediatric death in trauma and cardiac arrest during surgery. Adult studies report improved patient outcomes using massive hemorrhage protocols (MHPs). Little is known about pediatric MHP adoption in Canada.
Methods
After waived research ethics approval, we conducted a survey of Canadian pediatric tertiary care hospitals to study MHP activations. Transfusion medicine directors provided hospital/patient demographic and MHP activation data. The authors extracted pediatric-specific MHP data from requested policy/procedure documents according to seven predefined MHP domains based on the literature. We also surveyed educational and audit tools. The analysis only included MHPs with pediatric-specific content.
Results
The survey included 18 sites (100% response rate). Only 13/18 hospitals had pediatric-specific MHP content: eight were dedicated pediatric hospitals, two were combined pediatric/obstetrical hospitals, and three were combined pediatric/adult hospitals. Trauma was the most common indication for MHP activation (54%), typically based on a specific blood volume anticipated/transfused over time (10/13 sites). Transport container content was variable. Plasma and platelets were usually not in the first container. There was little emphasis on balanced plasma/platelet to red-blood-cell ratios, and most sites (12/13) rapidly incorporated laboratory-guided goal-directed transfusion. Transfusion thresholds were consistent with recent guidelines. All protocols used tranexamic acid and eight sites used an audit tool.
Discussion/Conclusion
Pediatric MHP content was highly variable. Activation demographics suggest underuse in nontrauma settings. Our findings highlight the need for a consensus definition for pediatric massive hemorrhage, a validated pediatric MHP activation tool, and prospective assessment of blood component ratios. A national pediatric MHP activation repository would allow for quality improvement metrics.
Journal Article
Predictors of postoperative respiratory complications in children undergoing adenotonsillectomy
2020
Study Objectives:
Obstructive sleep apnea (OSA) is commonly treated with adenotonsillectomy (AT), bringing risk of perioperative respiratory adverse events (PRAEs). We aimed to concurrently identify clinical and polysomnographic predictors of PRAEs in children undergoing AT.
Methods:
Retrospective study of children undergoing AT at a tertiary-care pediatric hospital, with prior in-hospital polysomnography, January 2010 to December 2016. PRAEs included those requiring oxygen, jaw thrust, positive airway pressure, or mechanical ventilation. Relationships of PRAEs to preoperative comorbidities or polysomnography results were examined with univariable logistic regression. Variables with
P
<.1 and age were included in backward stepwise multivariable logistic regression. Predictive performance (area under the curve, AUC) was validated with bootstrap resampling.
Results:
Analysis included 374 children, median age 6.1 years; 286 (76.5%) had ≥ 1 comorbidity. 344 (92.0%) had sleep-disordered breathing; 232 (62.0%) moderate-severe; 66 (17.6%) had ≥ 1 PRAE. PRAEs were more frequent in children with craniofacial, genetic, cardiac, airway anomaly, or neurological conditions, AHI ≥ 5 events/h and oxygen saturation nadir ≤ 80% on preoperative polysomnography. Prediction modeling identified cardiac comorbidity (odds ratio [OR] 2.09 [1.11, 3.89]), airway anomaly (OR 3.19 [1.33, 7.49]), and younger age (OR < 3 years:4.10 (1.79, 9.26; 3 to 6 years:2.21 [1.18, 4.15]) were associated with PRAEs (AUC 0.74; corrected AUC 0.68).
Conclusions:
Prediction modeling concurrently evaluating comorbidities and polysomnography metrics identified cardiac disease, airway anomaly, and young age as independent predictors of PRAEs. These findings suggest that medical comorbidity and age are more important factors in predicting PRAEs than PSG metrics in a medically complex population.
Citation:
Katz SL, Monsour A, Barrowman N, et al. Predictors of postoperative respiratory complications in children undergoing adenotonsillectomy.
J Clin Sleep Med
. 2020;16(1):41–48.
Journal Article
Opioid dose and postoperative respiratory adverse events after adenotonsillectomy in medically complex children
by
Chan, Theadora
,
Murto, Kimmo
,
Vaillancourt, Regis
in
Airway management
,
Analgesics
,
Cardiovascular disease
2022
Study Objectives:
Obstructive sleep-disordered breathing is commonly treated with adenotonsillectomy. Our study objective was to describe perioperative opioid dosing in children with a range of medical complexity evaluated for obstructive sleep-disordered breathing undergoing adenotonsillectomy and to investigate its association with postoperative respiratory adverse events (PRAEs).
Methods:
A retrospective chart review of children who underwent adenotonsillectomy and had preoperative polysomnography performed was conducted. PRAEs included requiring oxygen, jaw thrust, positive airway pressure, or mechanical ventilation. Multivariable logistic regression was performed to examine for associations between covariates and PRAEs.
Results:
The cohort included 374 children with obstructive sleep-disordered breathing, median (interquartile range) age 6.1 (3.9, 9.3) years; 344 (92%) had obstructive sleep apnea (apnea-hypopnea index > 1 events/h) while 30 (8%) had a normal polysomnogram (apnea-hypopnea index < 1 events/h). The median (interquartile range) postoperative morphine-equivalent dose administered was 0.17 (0.09, 0.25) mg/kg. Sixty-six (17.6%) experienced at least 1 PRAE. Multivariable modeling identified the following predictors of PRAE: younger age at surgery (odds ratio 0.90, 95% confidence interval 0.83, 0.98), presence of cardiac comorbidity (odds ratio 2.07, 95% confidence interval 1.09, 3.89), and presence of airway anomaly (odds ratio 3.48, 95% confidence interval 1.30, 8.94). Higher total apnea-hypopnea index and morphine-equivalent dose were associated with PRAE risk, and an interaction between these variables was detected (
P
= .01).
Conclusions:
This study identified opioid dose in morphine equivalents to be a strong predictor of PRAE. Additionally, severity of obstructive sleep apnea and postoperative morphine-equivalent dose contributed together and independently to the occurrence of PRAEs. Attention to opioid dosing, particularly among medically complex children with obstructive sleep-disordered breathing, is required to mitigate risk of PRAEs.
Citation:
Tsampalieros A, Murto K, Barrowman N, et al. Opioid dose and postoperative respiratory adverse events after adenotonsillectomy in medically complex children.
J Clin Sleep Med
. 2022;18(10):2405–2413.
Journal Article