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1.
Anesth Analg ; 133(5): 1215-1224, 2021 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-33560659

RESUMO

BACKGROUND: Closed-loop control of propofol-remifentanil anesthesia using the processed electroencephalography depth-of-hypnosis index provided by the NeuroSENSE monitor (WAVCNS) has been previously described. The purpose of this placebo-controlled study was to evaluate the performance (percentage time within ±10 units of the setpoint during the maintenance of anesthesia) of a closed-loop propofol-remifentanil controller during induction and maintenance of anesthesia in the presence of a low dose of ketamine. METHODS: Following ethical approval and informed consent, American Society of Anesthesiologist (ASA) physical status I-II patients aged 19-54 years, scheduled for elective orthopedic surgery requiring general anesthesia for >60 minutes duration, were enrolled in a double-blind randomized, placebo-controlled, 2-group equivalence trial. Immediately before induction of anesthesia, participants in the ketamine group received a 0.25 mg·kg-1 bolus of intravenous ketamine over 60 seconds followed by a continuous 5 µg·kg-1·min-1 infusion for up to 45 minutes. Participants in the control group received an equivalent volume of normal saline. After the initial study drug bolus, closed-loop induction of anesthesia was initiated; propofol and remifentanil remained under closed-loop control until the anesthetic was tapered and turned off at the anesthesiologist's discretion. An equivalence range of ±8.99% was assumed for comparing controller performance. RESULTS: Sixty patients participated: 41 males, 54 ASA physical status I, with a median (interquartile range [IQR]) age of 29 [23, 38] years and weight of 82 [71, 93] kg. Complete data were available from 29 cases in the ketamine group and 27 in the control group. Percentage time within ±10 units of the WAVCNS setpoint was median [IQR] 86.6% [79.7, 90.2] in the ketamine group and 86.4% [76.5, 89.8] in the control group (median difference, 1.0%; 95% confidence interval [CI] -3.6 to 5.0). Mean propofol dose during maintenance of anesthesia for the ketamine group was higher than for the control group (median difference, 24.9 µg·kg-1·min-1; 95% CI, 6.5-43.1; P = .005). CONCLUSIONS: Because the 95% CI of the difference in controller performance lies entirely within the a priori equivalence range, we infer that this analgesic dose of ketamine did not alter controller performance. Further study is required to confirm the finding that mean propofol dosing was higher in the ketamine group, and to investigate the implication that this dose of ketamine may have affected the WAVCNS.


Assuntos
Analgésicos Opioides/administração & dosagem , Anestesia com Circuito Fechado , Anestesia Geral , Anestésicos Dissociativos/administração & dosagem , Anestésicos Intravenosos/administração & dosagem , Monitorização Neurofisiológica Intraoperatória , Ketamina/administração & dosagem , Propofol/administração & dosagem , Remifentanil/administração & dosagem , Adulto , Analgésicos Opioides/efeitos adversos , Anestesia com Circuito Fechado/efeitos adversos , Anestesia Geral/efeitos adversos , Anestésicos Dissociativos/efeitos adversos , Anestésicos Intravenosos/efeitos adversos , Colúmbia Britânica , Método Duplo-Cego , Eletroencefalografia , Feminino , Humanos , Ketamina/efeitos adversos , Masculino , Pessoa de Meia-Idade , Procedimentos Ortopédicos , Complicações Pós-Operatórias/etiologia , Propofol/efeitos adversos , Remifentanil/efeitos adversos , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
2.
J Clin Monit Comput ; 35(3): 557-567, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-32307624

RESUMO

Dose-dependent effects of ketamine on processed electroencephalographic depth-of-hypnosis indices have been reported. Limited data are available for the NeuroSENSE WAVCNS index. Our aim was to establish the feasibility of closed-loop propofol-remifentanil anesthesia guided by the WAVCNS index in the presence of an analgesic dose of ketamine. Thirty ASA I-II adults, 18-54 years, requiring general anesthesia for anterior cruciate ligament surgery were randomized to receive: full-dose [ketamine, 0.5 mg kg-1 initial bolus, 10 mcg kg-1 min-1 infusion] (recommended dose for postoperative pain management); half-dose [ketamine, 0.25 mg kg-1 bolus, 5 mcg kg-1 min-1 infusion]; or control [no ketamine]. After the ketamine bolus, patients received 1.0 mcg kg-1 remifentanil over 30 s, then 1.5 mg kg-1 propofol over 30 s, followed by manually-adjusted propofol-remifentanil anesthesia. The WAVCNS was > 60 for 7/9 patients in the full-dose group at 7 min after starting the propofol infusion. This was inconsistent with clinical observations of depth-of-hypnosis and significantly higher than control (median difference [MD] 17.0, 95% confidence interval [CI] 11.4-26.8). WAVCNS was median [interquartile range] 49.3 [42.2-62.6] in the half-dose group, and not different to control (MD 5.1, 95% CI - 4.9 to 17.9). During maintenance of anesthesia, the WAVCNS was higher in the full-dose group compared to control (MD 14.7, 95% CI 10.2-19.2) and in the half-dose group compared to control (MD 11.4, 95% CI 4.7-20.4). The full-dose of ketamine recommended for postoperative pain management had a significant effect on the WAVCNS. This effect should be considered when using the WAVCNS to guide propofol-remifentanil dosing.Trial Registration ClinicalTrails.gov No. NCT02908945.


Assuntos
Ketamina , Propofol , Adulto , Anestesia Geral , Anestésicos Intravenosos , Estudos de Viabilidade , Humanos , Remifentanil
3.
Can J Anaesth ; 67(3): 324-335, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31691253

RESUMO

PURPOSE: Processed electroencephalography (EEG) monitors support depth-of-hypnosis assessment during anesthesia. This randomized-controlled trial investigated the performance of the NeuroSENSE electroencephalography (EEG) monitor to determine whether its wavelet anesthetic value for central nervous system (WAVCNS) index distinguishes consciousness from unconsciousness during induction of anesthesia (as assessed by the anesthesiologist) and emergence from anesthesia (indicated by patient responsiveness), and whether it correlates with changes in desflurane minimum alveolar concentration (MAC) during maintenance of anesthesia. METHODS: EEG was collected using a fronto-temporal bilateral montage. The WAVCNS was continuously recorded by the NeuroSENSE monitor, to which the anesthesiologist was blinded. Anesthesia was induced with propofol/remifentanil and maintained with desflurane, with randomized changes of -0.4, 0, or +0.4 MAC every 7.5 min within the 0.8-1.6 MAC range, if clinically acceptable to the anesthesiologist. During emergence from anesthesia, desflurane was stepped down by 0.2 MAC every five minutes. RESULTS: Data from 75 patients with a median [interquartile range] age of 41[35-52] yr were obtained. The WAVCNS distinguished consciousness from unconsciousness as assessed by the anesthesiologist, with area under the receiver operating characteristic curve of 99.5% (95% confidence interval [CI], 98.5 to 100.0) at loss of consciousness and 99.4% (95% CI, 98.5 to 100.0) at return of consciousness. Bilateral WAVCNS changes correlated with desflurane concentrations, with -8.0 and -8.6 WAVCNS units, respectively, per 1 MAC change in the 0.8-1.6 MAC range during maintenance of anesthesia and -10.0 and -10.5 WAVCNS units, respectively, in the 0.4-1.6 MAC range including emergence from anesthesia. CONCLUSION: The NeuroSENSE monitor can reliably discriminate between consciousness and unconsciousness, as assessed by the anesthesiologist, during induction of anesthesia and with a lower level of reliability during emergence from anesthesia. The WAVCNS correlates with desflurane concentration but plateaus at higher concentrations, similar to other EEG monitors, which suggests limited utility to titrate higher concentrations of anesthetic vapour. TRIAL REGISTRATION: clinicaltrials.gov, NCT02088671; registered 17 March, 2014.


Assuntos
Anestésicos Inalatórios , Desflurano , Hipnose , Isoflurano , Propofol , Anestésicos Inalatórios/farmacologia , Desflurano/farmacologia , Humanos , Remifentanil , Reprodutibilidade dos Testes
4.
J Clin Monit Comput ; 34(5): 1121-1129, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31696391

RESUMO

General anesthesia impairs thermoregulation and contributes to perioperative hypothermia; core body temperature monitoring is recommended during surgical procedures lasting > 30 min. Zero-heat-flux core body temperature measurement systems enable continuous non-invasive perioperative monitoring. During a previous trial evaluating the benefits of preoperative forced-air warming, intraoperative temperatures were measured with both a zero-heat-flux sensor and a standard naso-/oropharyngeal temperature probe. The aim of this secondary analysis is to evaluate their agreement. ASA I-III patients, scheduled for elective, non-cardiac surgery under general anesthesia, were enrolled. A zero-heat-flux sensor was placed on the participant's forehead preoperatively. Following induction of anesthesia, a "clinical" temperature probe was placed in the nasopharynx or oropharynx at the anesthesiologist's discretion. Temperature measurements from both sensors were recorded every 10 s. Agreement was analyzed using the Bland-Altman method, corrected for repeated measurements, and Lin's concordance correlation coefficient, and compared with existing studies. Data were collected in 194 patients with a median (interquartile range) age of 60 (49-69) years, during surgical procedures lasting 120 (89-185) min. The zero-heat-flux measurements had a mean bias of - 0.05 °C (zero-heat-flux lower) with 95% limits of agreement within - 0.68 to + 0.58 °C. Lin's concordance correlation coefficient was 0.823. The zero-heat-flux sensor demonstrated moderate agreement with the naso-/oropharyngeal temperature probe, which was not fully within the generally accepted ± 0.5 °C limit. This is consistent with previous studies. The zero-heat-flux system offers clinical utility for non-invasive and continuous core body temperature monitoring throughout the perioperative period using a single sensor.


Assuntos
Anestesia , Temperatura Alta , Idoso , Temperatura Corporal , Humanos , Pessoa de Meia-Idade , Monitorização Intraoperatória , Orofaringe , Temperatura
5.
Can J Anaesth ; 65(9): 1029-1040, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29872966

RESUMO

PURPOSE: The purpose of this study was to evaluate the effects of preoperative forced-air warming on intraoperative hypothermia. METHODS: In this randomized-controlled trial, adult patients scheduled for elective, non-cardiac surgery under general anesthesia were stratified by scheduled surgical duration (< 2.5 hr or ≥ 2.5 hr) and then randomized to a pre-warming group using a BairPaws™ forced-air warming system for at least 30 min preoperatively or to a control group with warmed blankets on request. All patients were warmed intraoperatively via convective forced-air warming blankets. Perioperative temperature was measured using the SpotOn™ temperature system consisting of a single-use disposable sensor applied to the participant's forehead. The primary outcome was the magnitude of intraoperative hypothermia calculated as the area under the time-temperature curve for core temperatures < 36°C between induction of general anesthesia and leaving the operating room. Secondary outcomes included surgical site infections, packed red blood cell requirements, and 24 hr postoperative opioid consumption. RESULTS: Two hundred participants were analyzed (101 control; 99 pre-warmed). Pre-warmed participants had a lower median [interquartile range] magnitude of hypothermia than controls (0.00 [0.00-0.12] °C·hr-1 vs 0.05 [0.00-0.36] °C·hr-1, respectively; median difference, -0.01°C·hr-1; 95% confidence interval, -0.04 to 0.00°C·hr-1; P = 0.005). There were no between-group differences in the secondary outcomes. CONCLUSION: A minimum of 30 min of preoperative forced-air convective warming decreased the overall intraoperative hypothermic exposure. While redistribution hypothermia still occurs despite pre- and intraoperative forced-air warming, their combined application results in greater preservation of intraoperative normothermia compared with intraoperative forced-air warming alone. TRIAL REGISTRATION: www.clinicaltrials.gov (NCT02177903). Registered 25 June 2014.


Assuntos
Hipotermia/prevenção & controle , Complicações Intraoperatórias/prevenção & controle , Idoso , Feminino , Temperatura Alta , Humanos , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Cuidados Pré-Operatórios
6.
Paediatr Anaesth ; 27(1): 28-36, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27779356

RESUMO

BACKGROUND: Oral morphine has been proposed as an effective and safe alternative to codeine for after-discharge pain in children following surgery but there are few data guiding an optimum safe oral dose. AIMS: The aim of this study was to characterize the absorption pharmacokinetics of enteral morphine in order to simulate time-concentration profiles in children given common oral morphine dose regimens. METHODS: Children (2-6 years, n = 34) undergoing elective surgery and requiring opioid analgesia were randomized to receive preoperative oral morphine (100 mcg·kg-1 , 200 mcg·kg-1 , 300 mcg·kg-1 ). Blood sampling for morphine assay was performed at 30, 60, 90, 120, 180, and 240 min. Morphine serum concentrations were determined by liquid chromatography-mass spectroscopy and pharmacokinetic parameters were calculated using nonlinear mixed effects models. Current data were pooled with published time-concentration profiles from children (n = 1059, age 23 weeks postmenstrual age - 3 years) administered intravenous morphine, to determine oral bioavailability (F), absorption lag time (TLAG ), and absorption half-time (TABS ). These parameter estimates were used to predict concentrations in children given oral morphine (100, 200, 300, 400, 500 mcg·kg-1 ) at different dosing intervals (3, 4, 5, 6, 8, 12 h). RESULTS: The oral morphine formulation had F 0.298 (CV 36.5%), TLAG 0.45 (CV 63.6%) h and TABS 0.71 (CV 55%) h. A single-dose morphine 100 mcg·kg-1 achieved a mean CMAX 10 mcg·l-1 . Repeat 4-hourly dosing achieved mean steady-state concentration 13-18 mcg·l-1 ; concentrations associated with good analgesia after intravenous administration. Serum concentration variability was large ranging from 5 to 55 mcg·l-1 at steady state. CONCLUSIONS: Oral morphine 200 mcg·kg-1 then 100 mcg·kg-1 4 h or 150 mcg·kg-1 6 h achieves mean concentrations associated with analgesia. There was high serum concentration variability suggesting that respiration may be compromised in some children given these doses.


Assuntos
Analgésicos Opioides/farmacocinética , Morfina/farmacocinética , Procedimentos Cirúrgicos Operatórios , Administração Oral , Analgésicos Opioides/administração & dosagem , Analgésicos Opioides/sangue , Criança , Pré-Escolar , Cromatografia Líquida , Relação Dose-Resposta a Droga , Feminino , Humanos , Masculino , Espectrometria de Massas , Morfina/administração & dosagem , Morfina/sangue
7.
J Strength Cond Res ; 28(12): 3557-66, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24942166

RESUMO

Relationship between unilateral jumping ability and asymmetry on multidirectional speed in team-sport athletes. J Strength Cond Res 28(12): 3557-3566, 2014-The influence of unilateral jump performance, and between-leg asymmetries, on multidirectional speed has not been widely researched. This study analyzed how speed was related to unilateral jumping. Multidirectional speed was measured by 20-m sprint (0-5, 0-10, 0-20-m intervals), left- and right-leg turn 505, and modified T-test performance. Unilateral jump performance, and between-leg asymmetries, was measured by vertical (VJ), standing broad (SBJ), and lateral (LJ) jumping. Thirty male team-sport athletes (age = 22.60 ± 3.86 years; height = 1.80 ± 0.07 m; mass = 79.03 ± 12.26 kilograms) were recruited. Pearson's correlations (r) determined speed and jump performance relationships; stepwise regression ascertained jump predictors of speed (p ≤ 0.05). Subjects were divided into lesser and greater asymmetry groups from each jump condition. A 1-way analysis of variance found between-group differences (p ≤ 0.05). Left-leg VJ correlated with the 0-10 and 0-20-m intervals (r = -0.437 to -0.486). Right-leg VJ correlated with all sprint intervals and the T-test (r = -0.380 to -0.512). Left-leg SBJ and LJ correlated with all tests (r = -0.370 to -0.729). Right-leg SBJ and LJ related to all except the left-leg turn 505 (r = -0.415 to -0.650). Left-leg SBJ predicted the 20-m sprint. Left-leg LJ predicted the 505 and T-test. Regardless of the asymmetry used to form groups, no differences in speed were established. Horizontal and LJ performance related to multidirectional speed. Athletes with asymmetries similar to this study (VJ = ∼10%; SBJ = ∼3%; LJ = ∼5%) should not experience speed detriments.


Assuntos
Aceleração , Atletas , Extremidade Inferior/fisiologia , Movimento/fisiologia , Força Muscular/fisiologia , Desempenho Atlético/fisiologia , Humanos , Masculino , Adulto Jovem
8.
BMJ Open ; 14(5): e085272, 2024 May 13.
Artigo em Inglês | MEDLINE | ID: mdl-38740499

RESUMO

INTRODUCTION: A significant proportion of individuals suffering from post COVID-19 condition (PCC, also known as long COVID) can present with persistent, disabling fatigue similar to myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and post-viral fatigue syndromes. There remains no clear pharmacological therapy for patients with this subtype of PCC, which can be referred to as post-COVID fatigue syndrome (PCFS). A low dose of the opioid antagonist naltrexone (ie, low-dose naltrexone (LDN)) has emerged as an off-label treatment for treating fatigue and other symptoms in PCC. However, only small, non-controlled studies have assessed LDN in PCC, so randomised trials are urgently required. METHODS AND ANALYSIS: A prospective, randomised, double-blind, parallel arm, placebo-controlled phase II trial will be performed to assess the efficacy of LDN for improving fatigue in PCFS. The trial will be decentralised and open to eligible individuals throughout the Canadian province of British Columbia (BC). Participants will be recruited through the province-wide Post-COVID-19 Interdisciplinary Clinical Care Network (PC-ICCN) and research volunteer platform (REACH BC). Eligible participants will be 19-69 years old, have had a confirmed or physician-suspected SARS-CoV-2 infection at least 3 months prior and meet clinical criteria for PCFS adapted from the Institute of Medicine ME/CFS criteria. Individuals who are taking opioid medications, have a history of ME/CFS prior to COVID-19 or history of significant liver disease will be excluded. Participants will be randomised to an LDN intervention arm (n=80) or placebo arm (n=80). Participants in each arm will be prescribed identical capsules starting at 1 mg daily and follow a prespecified schedule for up-titration to 4.5 mg daily or the maximum tolerated dose. The trial will be conducted over 16 weeks, with assessments at baseline, 6, 12 and 16 weeks. The primary outcome will be fatigue severity at 16 weeks evaluated by the Fatigue Severity Scale. Secondary outcomes will include pain Visual Analogue Scale score, overall symptom severity as measured by the Patient Phenotyping Questionnaire Short Form, 7-day step count and health-related quality of life measured by the EuroQol 5-Dimension questionnaire. ETHICS AND DISSEMINATION: The trial has been authorised by Health Canada and approved by The University of British Columbia/Children's and Women's Health Centre of British Columbia Research Ethics Board. On completion, findings will be disseminated to patients, caregivers and clinicians through engagement activities within existing PCC and ME/CFS networks. Results will be published in academic journals and presented at conferences. TRIAL REGISTRATION NUMBER: NCT05430152.


Assuntos
Naltrexona , Antagonistas de Entorpecentes , Humanos , Método Duplo-Cego , Naltrexona/administração & dosagem , Naltrexona/uso terapêutico , Colúmbia Britânica , Antagonistas de Entorpecentes/administração & dosagem , Antagonistas de Entorpecentes/uso terapêutico , COVID-19/complicações , Síndrome de Fadiga Crônica/tratamento farmacológico , Estudos Prospectivos , Ensaios Clínicos Controlados Aleatórios como Assunto , SARS-CoV-2 , Síndrome de COVID-19 Pós-Aguda , Adulto , Masculino , Ensaios Clínicos Fase II como Assunto , Feminino
9.
Clin Imaging ; 111: 110144, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38749319

RESUMO

RATIONALE AND OBJECTIVES: To assess whether academic radiology departments and residency programs with efforts toward supporting and augmenting Diversity, Equity, and Inclusion (DEI) are associated with a higher proportion of residents from diverse backgrounds. MATERIALS AND METHODS: Program Directors within the Radiology Residency Education Research Alliance were surveyed to gather information about program characteristics, incorporation of diversity in resident recruitment, the sponsoring department's commitment to efforts at expanding diversity, and a summary of their current and past residents, staff and faculty members (academic years 2020 and 2023) with respect to a list of diversity characteristics. RESULTS: Survey response rate was 51 %. Sixty-three percent (15/24) of participating programs have departmental committees dedicated to DEI work; 46 % (11/24) of programs' departments have a Vice Chair for DEI. Sixty percent (15/24) of programs use their social media accounts to advertise their DEI programming efforts. Ninety-six percent (23/24) of programs participating in the survey use diversity factors to select candidates for their program. Women Leadership was associated with above-median diversity of residents and faculty. CONCLUSION: This study of radiology residency programs encourages a more prominent role for women in leadership positions within academic radiology departments to drive diversity and inclusion efforts.


Assuntos
Internato e Residência , Liderança , Médicas , Radiologia , Humanos , Radiologia/educação , Feminino , Médicas/estatística & dados numéricos , Inquéritos e Questionários , Diversidade Cultural , Seleção de Pessoal , Estados Unidos , Docentes de Medicina/estatística & dados numéricos
10.
Acad Radiol ; 31(2): 351-359, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-38401980

RESUMO

RATIONALE AND OBJECTIVES: With the shifting needs of radiologists due to escalating healthcare demands, the impetus for an increased focus on wellness and the benefits of the humanities in medicine inspired a novel approach to curricular planning of the 2023 Association of University Radiologists (AUR) annual meeting. In this manuscript, we describe the creative process behind planning and executing this innovative meeting format. MATERIALS AND METHODS: Reimagining the annual meeting was a collaborative effort centered around the development of an innovative Arts and Wellness Program, with the goal of integrating opportunities for artistic expression and experiential wellness throughout the meeting. RESULTS: Of the 1313 meeting attendees, 423 (32.2%) completed the annual meeting evaluation, of which 244 were in-person and 61 attended virtually. 178 of 423 respondents (42.1%) participated in the arts and wellness programming. 160 of 203 respondents (78.9%) reported that the arts and wellness programming enhanced the overall meeting experience. 164 of 197 respondents (83.2%) gained greater appreciation for the talents of radiology colleagues. 97 of 195 respondents (49.7%) stated that the programming gave them ideas as to how to cope effectively with stress. CONCLUSION: The incorporation of art, music, and other wellness activities into a national radiology meeting was well-received by meeting attendees. For many radiologists who participated in the various musical and artistic offerings at the AUR 2023 meeting, sharing artistic talents with the radiology community and colleagues represented the most fundamental way to be fully seen, express authenticity, and connect with others.


Assuntos
Arte , Radiologia , Humanos , Criatividade , Promoção da Saúde , Radiografia , Congressos como Assunto
11.
Can J Anaesth ; 60(6): 557-63, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23519724

RESUMO

PURPOSE: The air-Q® intubating laryngeal airway (ILA) is a supraglottic device (SGD) designed specifically to function as both a primary airway and a bridging device and conduit for fibreoptic intubation in difficult airway scenarios. This observational study evaluated the usability and performance characteristics of pediatric air-Q ILA sizes 1.0, 1.5, 2.0, and 2.5 when used as a primary airway. METHODS: One hundred ten children, American Society of Anesthesiologists physical status I-III and undergoing elective surgery, received a weight-appropriate air-Q ILA following induction of anesthesia. The evaluation criteria included ease of insertion, quality of ventilation, presence of gastric insufflation, oropharyngeal leak pressures (OLPs) and maximum tidal volumes (VT max) in five different head positions, and fibreoptic view of the glottis. RESULTS: For sizes 1.0, 1.5, 2.0, and 2.5, the median [P25,P75] neutral OLPs (cm H2O) were 23.0 [20.0,30.0], 16.5 [15.0,20.8], 14.0 [10.0,17.8], and 14.0 [11.3,16.8], respectively. The median [P25,P75] neutral VT max values (mL · kg(-1)) were 17.4 [14.3,19.7], 20.3 [16.8,25.5], 17.8 [14.5,22.1], and 14.0 [11.6,16.0], respectively. Median [P25,P75] ease of insertion scores (0-10; 0 = easiest ever, 10 = most difficult ever) were 1 [1,2], 2 [2,3], 2 [1,2.8], and 2 [2,3] respectively. Ventilation was adequate in 108/110 cases, and a fibreoptic view of the vocal cords was obtained in 102/110 cases. CONCLUSIONS: The air-Q ILA functions acceptably as a primary SGD in infants and children. The OLPs are lower than published values for the ProSeal laryngeal mask airway (LMA ProSeal™), the current pediatric SGD of choice, but adequate tidal volumes are readily achievable. The fibreoptic views of the glottis portend well for fibreoptic intubation through the device. (This trial was registered at clinicaltrials.gov number, NCT00885911).


Assuntos
Manuseio das Vias Aéreas/métodos , Procedimentos Cirúrgicos Eletivos/métodos , Máscaras Laríngeas , Adolescente , Fatores Etários , Manuseio das Vias Aéreas/instrumentação , Anestesia/métodos , Criança , Pré-Escolar , Desenho de Equipamento , Feminino , Tecnologia de Fibra Óptica , Glote , Humanos , Lactente , Recém-Nascido , Masculino , Posicionamento do Paciente , Volume de Ventilação Pulmonar , Prega Vocal
12.
J Clin Monit Comput ; 27(5): 551-60, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23568315

RESUMO

A novel wavelet transform cardiorespiratory coherence (WTCRC) algorithm has been developed to measure the autonomic state. WTCRC may be used as a nociception index, ranging from 0 (no nociception, strong coherence) to 100 (strong nociception, low coherence). The aim of this study is to estimate the sensitivity of the algorithm to nociception (dental dam insertions) and antinociception (bolus doses of anesthetic drugs). WTCRC's sensitivity is compared to mean heart rate (HRmean) and mean non-invasive blood pressure (NIBPmean), which are commonly used clinical signs. Data were collected from 48 children receiving general anesthesia during dental surgery. The times of dental dam insertion and anesthetic bolus events were noted in real-time during surgeries. 42 dental dam insertion and 57 anesthetic bolus events were analyzed. The change in average WTCRC, HRmean, and NIBPmean was calculated between a baseline period before each event and a response period after. A Wilcoxon rank-sum test was used to compare changes. Dental dam insertion changed the WTCRC nociception index by an average of 14 (82 %) [95 % CI from 7.4 to 19], HRmean by 7.3 beats/min (8.1 %) [5.6-9.6], and NIBPmean by 8.3 mmHg (12 %) [4.9-13]. A bolus dose of anesthetics changed the WTCRC by -15 (-50 %) [-21 to -9.3], HRmean by -4.8 beats/min (4.6 %) [-6.6 to -2.9], and NIBPmean by -2.6 mmHg (3.4 %) [-4.7 to -0.50]. A nociception index based on cardiorespiratory coherence is more sensitive to nociception and antinociception than are HRmean or NIBPmean. The WTCRC algorithm shows promise for noninvasively monitoring nociception during general anesthesia.


Assuntos
Anestesia Geral/métodos , Frequência Cardíaca , Monitorização Intraoperatória/métodos , Procedimentos Cirúrgicos Bucais/métodos , Medição da Dor/métodos , Dor Pós-Operatória/diagnóstico , Taxa Respiratória , Anestésicos Gerais/administração & dosagem , Criança , Pré-Escolar , Diagnóstico por Computador/métodos , Feminino , Humanos , Masculino , Procedimentos Cirúrgicos Bucais/efeitos adversos , Dor Pós-Operatória/etiologia , Propofol/administração & dosagem , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Análise de Ondaletas
13.
Curr Probl Diagn Radiol ; 52(1): 41-44, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35965151

RESUMO

Residency programs that effectively utilize social media (SoMe) have the potential to distinguish themselves and improve their resident recruitment. These platforms allow programs to connect with applicants they otherwise might have limited ability to reach before the interview season. We sought to evaluate the presence of SoMe across diagnostic radiology residency programs and highlight future trends that programs should account for. A list of diagnostic radiology residency programs within the United States was obtained from the American Medical Association (AMA) FREIDA Residency Database. A search for the presence of Twitter, Facebook, and Instagram was performed for each program. Based on the analysis, the most utilized SoMe platform by diagnostic radiology residency programs was Twitter (61.73%), followed by Instagram (47.45%), and then Facebook (37.76%). Given that Twitter was the most utilized, further analysis was done to evaluate the total number of followers and the year of account creation. The results showed that the average program had 1081 ± 1438 followers and the mean year of creation was 2017 ± 2.6 years. Social media is an effective tool to disseminate information efficiently and effectively to prospective residency candidates. It is important that those involved in radiology medical education stay up to date with current and future social media trends while maintaining an active professional presence on these platforms.


Assuntos
Internato e Residência , Radiologia , Mídias Sociais , Estados Unidos , Humanos , Estudos Prospectivos , Radiologia/educação , Radiografia
14.
Clin Imaging ; 101: 223-226, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37429168

RESUMO

PURPOSE: The COVID-19 pandemic rapidly accelerated the adoption of virtual learning in medical education, including departmental grand rounds lectures in radiology. This retrospective study sought to assess the impact of an open access virtual grand rounds program. We tested the hypothesis that virtual grand rounds would advance learning equity by increasing access to learners outside of our institution. METHODS: Twenty-two open access virtual grand rounds lectures were presented and recorded using an online videoconferencing platform. After the lecture, registrants received online access to the lecture recording for later on-demand viewing. The email address, geographical location, institutional affiliation, and medical specialty for all virtual registrants and attendees were retrospectively collected from a required online registration form. The primary outcome measure included an assessment of geographical diversity using descriptive statistics. RESULTS: Attendees of the virtual lectures were from 75 academic institutions and 27 non-academic institutions and located in 32 states, 88 cities, and 9 countries. Twenty-seven medical specialties were represented. CONCLUSION: The virtual grand rounds program in radiology contributes to free and open access educational content online for learners around the world. To address learning equity and promote international inclusion, we recommend that grand rounds organizers consider including a virtual option that allows free sharing of knowledge.


Assuntos
COVID-19 , Radiologia , Visitas de Preceptoria , Humanos , Estudos Retrospectivos , Pandemias
15.
Acad Radiol ; 30(4): 603-616, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36543685

RESUMO

This article reviews current medical literature to assess the benefits and drawbacks of virtual interviews for radiology residencies as well as the downstream effects of these changes, best practices, and potential future recruitment methods. Topics covered include the effects of remote recruitment in promoting accessibility and applicant diversity and equality as well as fiscal, environmental, and time savings in combination with technical challenges, the complications of over application, challenges in assessment of program culture and location, impact on morale, and hidden financial and emotional costs. Learnings from other medical specialties are highlighted in addition to the process of signaling, guidelines for conducting and participating in virtual interviews, and matters for future consideration.


Assuntos
Internato e Residência , Radiologia , Humanos , Inquéritos e Questionários
16.
Acad Radiol ; 30(6): 1017-1023, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36621442

RESUMO

RATIONALE AND OBJECTIVES: Iodinated contrast media (ICM) is used in computed tomography (CT) imaging to better visualize pathophysiology. ICM is commonly sold in "single-dose" bottles that require any unused volume to be discarded. Multi-dose bottles have been developed as an alternative packaging method. The objective of this study was to compare ICM waste, plastic waste, and the associated financial costs for both the single-dose and multi-dose ICM delivery systems. METHODS: Institutional data was used to estimate the average ICM administered per CT scan, average ICM wasted per CT scan, and the total ICM volume wasted annually. Waste estimates for the multi-dose bottles were generated by applying the average ICM administered per CT scan to the larger, multi-dose bottle volumes. Single-dose bottles, multi-dose bottles and injection syringes were weighed and used to calculate plastic waste generated by both packaging methods. Financial analysis was performed to compare the cost of supplies for single-dose and multi-dose ICM delivery systems. RESULTS: We found that 100 mL single-dose ICM bottles waste an average of 19.7 mL per CT scan, representing over 964 L of ICM wasted per year. The multi-dose ICM delivery system was projected to decrease pharmaceutical waste by at least 73% and reduce plastic waste by approximately 93%. We also estimate $494,000 in annual savings using the multi-dose ICM delivery method at our institution. CONCLUSION: Multi-dose ICM packaging can help conserve ICM, an important pharmaceutical that was only recently severely affected supply chain disruptions. The multi-dose delivery system can also reduce plastic waste and generate substantial financial savings to offset capital investment.


Assuntos
Meios de Contraste , Tomografia Computadorizada por Raios X , Humanos , Plásticos , Preparações Farmacêuticas
17.
Curr Probl Diagn Radiol ; 51(4): 427-430, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35241310

RESUMO

Interest in incorporating art into radiology has been growing in recent years. Radiological societies have begun to acknowledge the benefits art can bring to our field. Given this growing interest, a task force was created in 2021 to carry out integration of the arts into the annual American College of Radiology (ACR) meeting. Experiences of this task force are described, including consideration of benefits of integrating art in radiology practice and education as well as strategies, outcomes, and future directions for melding arts with radiology.


Assuntos
Internato e Residência , Radiologia , Humanos , Radiografia , Radiologia/educação , Sociedades Médicas , Estados Unidos
18.
Acad Radiol ; 29(5): 771-778, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35379478

RESUMO

RATIONALE AND OBJECTIVES: The COVID-19 pandemic has transformed radiology recruitment into a virtual affair and placed an even stronger emphasis on the importance of departmental websites. In this study, we evaluate residency websites in detailing the response to COVID-19 as well as initiatives which help describe the resident experience. MATERIALS AND METHODS: Program websites for diagnostic radiology residencies listed in the 2022 Electronic Residency Application Service (ERAS) program list were evaluated for 31 criteria related to departmental response to COVID-19, online outreach, and resident wellness. RESULTS: Of 184 programs, 182 had functioning websites for review. One program was excluded from analysis as the website was almost entirely video-based. In response to COVID-19, ≤1% described resident redeployment, vaccination information, departmental response to ABR Core Exam changes, or regular administration updates. Six (3.3%) described revised read-out protocols, four (2.2%) mentioned supplementary non-clinical education, and 14 (7.7%) indicated changes to educational conferences. The majority of websites (122, 67.4%) offered an informational or tour video, while 44 (24.3%) described expectations for virtual interviewing, and 20 (11.0%) had virtual "open-houses." Departmental social media, primarily Twitter, was linked for 60 (33.1%) programs. A total of 134 (74.0%) websites described community highlights. More than a quarter mentioned meal stipends (72, 39.8%), paid sick time (54, 29.8%) and healthcare resources (57, 31.5%). Although social activities were described by 44 (24.3%) programs, some specifically indicating changes to COVID-19, formal resident mentoring (25, 13.8%) and wellness committees (28, 15.5%) were less common. These criteria were found more commonly at the largest third of residency programs (chi square, p < 0.00625). CONCLUSION: Programs rarely described work flow changes to COVID-19, and websites could improve in virtual outreach. Compared with prior literature, departmental websites have improved in describing wellness initiatives and related measures.


Assuntos
COVID-19 , Internato e Residência , Radiologia , Educação de Pós-Graduação em Medicina , Humanos , Pandemias , Radiologia/educação
19.
Acad Radiol ; 29(8): 1259-1265, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-34400076

RESUMO

RATIONALE AND OBJECTIVES: Departmental websites are often the first exposure applicants have in researching programs. Websites provide information about resident education as well as infrastructure for resident wellness. For this study, we reviewed residency websites to evaluate resident wellness initiatives and extent of details available online. MATERIALS AND METHODS: Program websites for diagnostic radiology residencies listed in the 2020 ERAS program list were evaluated for 26 criteria pertaining to resident wellness. Criteria which are not radiology resident specific were also evaluated on their graduate medical education (GME) websites if unavailable on the departmental website. RESULTS: Of 189 programs, 185 (97.9%) had functioning websites for review. Book funds were mentioned by 57% (mean $3,762), and 43.5% discussed housing stipends during AIRP (mean $2,204); neither significantly correlated with program size. Retirement plan matching was present for 47.8% of programs. Almost all programs utilized night float call schedules, with relatively similar distribution of residents starting on-call duties as fall PGY2s, spring PGY2s, and starting PGY3s. Moonlighting was mentioned by 22.8% of departments. Paid wellness days were discussed in 10.8% (mean 3.1 days/year), and 37.7% described paid parental leave (mean 27.8 days/year). Less than 10% described resident mentoring, wellness committees, or non-clinical curricula. Resident retreats were mentioned by 21.6% of programs, and 11.4% described regular social activities; both were found more frequently at larger programs (chi-square analysis, p <0.00625). CONCLUSION: This study evaluated radiology residency program and GME websites for information pertaining to resident wellness. While financial and clinical information was typically present for >50% of programs, information regarding social initiatives was generally lacking and may be one area to bolster resident wellness and describe on websites.


Assuntos
Internato e Residência , Radiologia , Currículo , Educação de Pós-Graduação em Medicina , Humanos , Radiologia/educação
20.
Curr Probl Diagn Radiol ; 50(3): 297-300, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33257097

RESUMO

Communication is vital in healthcare to facilitate the best patient care at all times. During the COVID-19 pandemic, communication has become increasingly crucial, including devising innovative, novel, and effective ways to exchange information in graduate medical education, multidisciplinary teams, and patient care, all which affect our learners. This article will provide a comprehensive review of generational characteristics, including communication preferences. Effective communication strategies and communication challenges with learners (millennial generation) will be discussed in detail.


Assuntos
COVID-19/prevenção & controle , Comunicação , Educação de Pós-Graduação em Medicina/métodos , Humanos , Disseminação de Informação/métodos , Pandemias , SARS-CoV-2
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