scholarly journals ED50 of Intranasal Dexmedetomidine Sedation for Transthoracic Echocardiography in Children with or without a History of Cardiac Surgery for Cyanotic Congenital Heart Disease

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
HongBin Gu ◽  
YunAn Song ◽  
Jie Bai

Background and Objective. Dexmedetomidine (DEX) can provide adequate sedation during short procedures. However, the median effective dose (ED50) of intranasal DEX sedation has not been well established in children with a history of correction surgery for cyanotic congenital heart disease (cCHD). This study was to determine ED50 of intranasal DEX sedation for transthoracic echocardiography (TTE) in young children with a history of correction surgery for cCHD. Methods. This prospective single-blinded clinical trial included 72 ASA I-II stage children aged 1-36 months with cCHD who were scheduled to undergo TTE under sedation. Children were assigned to group A ( n = 37 ) with a previous history of cardiac surgery and group B ( n = 35 ) with no history of cardiac surgery. Doses of intranasal DEX were analyzed by up-down sequential allocation at an initial dose of 2.3 μg/kg and an increase in steps of 0.2 μg/kg. Intranasal DEXED50 values were analyzed by the up-and-down method of Dixon-Massey and probit regression to determine ED50 and 95% confidence interval (CI) for sedation. The time to effective sedation, time to regaining consciousness, vital signs, oxygen saturation, time of performing TTE, clinical adverse effects, and characteristics of regaining consciousness were compared between the two groups. Results. ED50 of intranasal DEX sedation was 2.530 μg/kg (95% CI, 1.657-4.156) in group A and 2.500 μg/kg (95% CI, 1.987-3.013) in group B. There was no significant difference in sedation onset time and time to regaining consciousness between the two groups. Additionally, no significant adverse hemodynamic or hypoxemic effect was observed. There was no significant difference in sedation-onset time and wake-up time between the two groups ( 15 ± 4  min vs. 16 ± 5  min; 50 ± 11  min vs. 48 ± 10  min). This trial is registered with the China Clinical Trials Registry (ChiCTR-IOR-1800015038). Conclusions. ED50 of intranasal DEX sedation for TTE is similar in children with and without a history of cardiac surgery for cCHD.

1993 ◽  
Vol 21 (2) ◽  
pp. 197-200 ◽  
Author(s):  
J. P. Keneally ◽  
P. H. Goonetilleke ◽  
I. M. Ramzan

The effect of alcuronium dichloride (0.3 mg/kg) was studied in seven normal children (Group A), nine with acyanotic congenital heart disease (Group B) and eight with cyanotic disease (Group C). The onset of action was recorded using an integrated electromyograph and blood samples taken for later estimation of plasma concentrations of the drug. The mean time (SD) taken to 75% suppression of twitch height was 1.3(0.8), 1.7(1.0) and 3.8(2.8) minutes, respectively, in each of the three groups. This was significantly slower in Group C compared with both other groups (P<0.05). While six of the Group A patients and seven from Group B reached 95 % paralysis within ten minutes, only two of the cyanosed children achieved this level of relaxation. However, if times to 95% relaxation were extrapolated, there was no significant difference between the groups at 4.5(3.9), 5.8(5.7) and 10.9(6.5) minutes respectively. There was a weak but statistically significant relationship between haematocrit and time to 75% blockade. Maximum twitch depression was similar in all three groups with plasma concentrations at this time being 1.6(0.7), 1.8(0.5) and 2.3(1.4) μg/ml respectively. Again, there was no statistically significant difference between these values. These results confirm that the clinical onset of relaxation is delayed in children with cyanotic congenital heart disease, possibly because of delayed distribution of alcuronium.


2021 ◽  
Vol 9 (01) ◽  
pp. 814-822
Author(s):  
Sanjay Kumar Morwal ◽  
Ajit Singh ◽  
C.K. Vyas ◽  
Neelu Sharma

Background: The intranasal route is a reliable way to administer preanaesthetics and sedatives to children. The aim of present study was to compare the anxiolytic and sedative effects of intranasal dexemedetomidine and midazolam as a premedication in children with congenital heart disease undergoing cardiac surgery.. Patients and Methods: Fifty chidrens 2-12 years of age group of either sex with congenital heart disease undergoing cardiac surgery were randomly allocated into two groups. Group A-(n=25) - received intranasal dexmedetomidine as premedication.(0.1 µg/kg diluted in 2ml NS ) Group B- (n=25)- received intranasal midazolam as premedication. (0.2 mg/kg diluted in 2ml NS) Heart rate, mean arterial blood pressure and oxygen saturation were monitored upto30 minute after drug administration. The sedation score, anxiety score and child separation score were recorded until the child taken to the OR. The postoperative agitation score was also observed. Results and Conclusion: Premedication with intranasal dexmedetomidine attained significant and satisfactory sedation with better parental separation and lower anxiety levels without any adverse effects as compared with intranasal midazolam in children with congenital heart disease undergoing cardiac surgery.


Perfusion ◽  
2016 ◽  
Vol 32 (4) ◽  
pp. 269-278 ◽  
Author(s):  
Zdenka Holubcova ◽  
Pavel Kunes ◽  
Jiri Mandak ◽  
Dana Vlaskova ◽  
Martina Kolackova ◽  
...  

Objectives: The aim was to evaluate the association between perioperative inflammatory biomarkers and atrial fibrillation (AF) in cardiac surgical patients. Methods: Forty-two patients undergoing cardiac surgery were divided into three groups according to the occurrence of AF: Group A (n = 22) – patients with no AF, Group B (n = 11) – patients with new onset AF postoperatively and Group C (n = 9) – patients with preoperative history of atrial fibrillation. The serum levels of PTX3, CRP, TLR2, IL-8, IL-18, sFas, MMP-7 and MMP-8 were measured at the following time points: before surgery, immediately and 6 h after surgery and on the 1st, 3rd and 7th postoperative days (POD). Results: Serum levels of PTX3 showed a significant difference between Groups A and C on the 3rd POD (p<0.05) and on the 7th POD (p<0.0001). IL-8 levels were different between Groups A and C immediately after surgery (p<0.05), 6 hours after surgery (p<0.05) and on the 3rd POD (p<0.05). There was a difference between Groups B and C on the 1st POD in IL-8 levels (p<0.05). The sFas levels differed between Groups A and C on the 3rd POD (p<0.01) and the 7th POD (p<0.05). There was also a difference on the 7th POD (p<0.05) between the Groups B and C. No significant differences between the groups was seen for other biomarkers. Conclusion: This study demonstrates significantly different dynamics of PTX3, IL-8 and sFas levels after cardiac surgery in relation to AF.


2021 ◽  
Vol 28 (10) ◽  
pp. 1477-1483
Author(s):  
Muhammad Sohail Arshad ◽  
Waqas Imran Khan ◽  
Arif Zulqarnain ◽  
Hafiz Muhammad Anwar-ul-Haq ◽  
Mudasser Adnan

Objective: To find out the impact of Cyanotic Congenital Heart Disease (CCHD) on growth and endocrine functions at a tertiary care child healthcare facility of South Punjab. Study Design: Case Control study. Setting: Department of Pediatric Cardiology and Department of Pediatric Endocrinology, Institute of Child’s Health (ICH), Multan, Pakistan. Period: December 2018 to March 2020. Material & Methods: During the study period, a total of 53 cases of Echocardiography confirmed CCHD were registered. Along with 53 cases, 50 controls during the study period were also enrolled. Height, weight, body mass index (BMI) along with hormonal and biochemical laboratory investigations were done. Results: There was no significant difference between gender and age among cases and controls (p value>0.05). Most common diagnosis of CCHD among cases, 24 (45.3%) were Tetralogy of Fallot (TOF) followed by 9 (17.0%) transposition of the great arteries (TGA) with Ventricular Septal Defect (VSD) with Pulmonary Stenosis (PS). Mean weight of CCHD cases was significantly lower in comparison to controls (21.19+6.24 kg vs. 26.48+8.1 kg, p value=0.0003). Blood glucose was significantly lower among cases in comparison to controls (77.58+14.58 mg/dl vs. 87.25+11.82 mg/dl, p value=0.0004). No significant difference was found in between cases and controls in terms of various hormone levels studied (p value>0.05) except Insulin-like Growth Factor-1 (IGF-1) levels (p value<0.0001). Conclusion: Children with cyanotic congenital heart disease seem to have negative effects on nutrition and growth. Change in pituitary-adrenal axis is suspected while pituitary-thyroid axis seemed to be working fine among CCHD cases. Serum glucose and IGF-1 levels were significantly decreased among CCHD cases.


1995 ◽  
Vol 2 (2) ◽  
pp. 47-51
Author(s):  
Satoshi Shibuta ◽  
Yuji Fujino ◽  
Shigekazu Yokoyama ◽  
Motomu Shimaoka ◽  
Sonoko Nakano ◽  
...  

Author(s):  
Constanze Pfitzer ◽  
Aleksandra Buchdunger ◽  
Paul C. Helm ◽  
Maximilian J. Blickle ◽  
Lisa-Maria Rosenthal ◽  
...  

2020 ◽  
Vol 77 (4) ◽  
pp. 249-253
Author(s):  
Silene Silvera Ruiz ◽  
Carola L Grosso ◽  
Margot Tablada ◽  
Marcelo Cabrera ◽  
Raquel Dodelson de Kremer ◽  
...  

Pulmonary hypertension (PH) is a major cause of morbi-mortality among patients with congenital heart disease (CHD) and also a potentially severe complication after surgical repair. Oral citrulline, a precursor to NO synthesis, is safe and efficacious for decreasing the risk of postoperative PH. Objective: The aim of the present study was to investigate in pediatric patients the changes of plasma citrulline, arginine, homocysteine and nitric oxide (NO) metabolites and pulmonary artery pressures (PAP) pre-post cardiac surgery in order to describe our population status with regard to the risk of pulmonary hypertension and look for potential biomarkers for early detection and treatment. Main results/Discussion: 16 Argentine pediatric patients with CHD undergoing cardiopulmonary bypass were randomized in two groups: (A) with and (B) without perioperative citrulline supplementation. We found that plasma citrulline median levels before surgery were lower in both groups respect to referential values, probably due to the poor nutritional status of our patients; only group A surpassed post-surgery the minimum recommended level to avoid PH. Furthermore, none of the patients in group A showed mean PAP higher than 20 mmHg, whereas in group B, 67% of the measurements were ≥ than the reference level. Conclusions: We reaffirm that citrulline supplementation it is effective in reducing postoperative pulmonary hypertension and biomarkers could evidence patient status as a translational medicine application.


2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
A Constantine ◽  
K Dimopoulos ◽  
R Condliffe ◽  
P Clift ◽  
G Chaplin ◽  
...  

Abstract Background/Introduction Pulmonary arterial hypertension (PAH) is a common complication of congenital heart disease (CHD) in children and is associated with significant morbidity and mortality. The impact of different phenotypes on management and survival remains unclear. Purpose To examine the clinical features, management and outcomes of paediatric PAH-CHD patients based on the 20-year experience of the UK National Paediatric Pulmonary Hypertension (PH) Service. Methods Consecutive PAH-CHD patients entering the service between January 2001 and January 2021 were included and classified into: Eisenmenger syndrome (ES, group A), PAH related to a significant systemic-pulmonary shunt (group B), PAH with small or co-incidental CHD (group C) and PAH following defect repair (group D). Incident patients (without pre-existing PAH) were included in survival analysis. Results Of the overall PH paediatric cohort of 1104 patients, 819 (74.2%) had co-existing CHD and 354 (32.1%) patients received a diagnosis of PAH-CHD: 57.1% female, median [IQR] 4.6 [1.7–10.9] years. Group D PAH-CHD was the commonest subgroup, accounting for 36%, while the least frequent subtype was group C (14%). Group A and group B PAH-CHD represented 26% and 24%, respectively. Down syndrome was present in over one third (122, 34.5%) of PAH-CHD patients and was more commonly associated with ES (p=0.02). PAH therapy was started in 79.9% of PAH-CHD patients. At the end of follow-up, patients with group C PAH-CHD were more likely to be on combination therapy than any other group (64.6% vs. 28.4%, p&lt;0.0001). Prostanoid therapy was used in a minority (11%) of patients. The subgroup distribution of PAH-CHD at diagnosis changed from the early (2000–2005) to late (2015–2020) period (Figure 1). The proportion of ES patients decreased from 43.4% to 14.6% of PAH-CHD (p&lt;0.0001). The proportion of group B PAH-CHD patients increased (9.4% vs. 33.3%, p&lt;0.0001), with the majority (59.3%) deemed “operable” on specialist assessment. There was a trend for an increase in repaired PAH-CHD patients between the early and late era (31.1% vs. 43.8%, p=0.09). Transplant-free survival in PAH-CHD was 90.9% (95% CI: 87.8–94%) at 1 year, 77.9% (95% CI: 73.1–83.1%) at 5 years, and 74.9% (95% CI: 69.6–80.7%) at 10 years (Figure 2). Group C PAH-CHD had a lower transplant-free survival than the other 3 groups (HR 2.54, 95% CI: 1.51–4.28, p=0.0005). There was no difference in outcome between group A and group D PAH-CHD (HR 1.19, 95% CI: 0.62–2.28, p=0.6). Conclusions Repaired PAH-CHD, not ES, was the most common subtype in this large paediatric cohort. Over time, there were fewer ES patients and more “operable” patients with left-right shunts, suggesting an improvement in early diagnosis and management. Despite widespread use of PAH therapy, PAH-CHD remains a life-limiting disease with the poorest outcomes in PAH with co-incidental CHD. FUNDunding Acknowledgement Type of funding sources: Private grant(s) and/or Sponsorship. Main funding source(s): Dr Constantine received a personal PhD fellowship grant (CHAMPION PhD Fellowship) Figure 1 Figure 2


2012 ◽  
Vol 2012 ◽  
pp. 1-3 ◽  
Author(s):  
Scott C. Watkins ◽  
Lewis McCarver ◽  
Alicia VanBebber ◽  
David P. Bichell

Gas emboli, including venous and arterial, are a rare but important complication of pediatric cardiac surgery. They have the potential to have devastating consequences and require prompt recognition and treatment. We present a case of gas embolism occurring in the immediate postoperative period in an infant with cyanotic congenital heart disease after palliative cardiac surgery resulting in cardiopulmonary arrest. The embolism was diagnosed by visualization of air within the vessel creating an airlock and occluding pulmonary blood flow.


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