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Table 1 The general characteristics of the enrolled studies

From: Comparison of the effects of ketamine via nebulization versus different pharmacological approaches in pediatric sedation: a systematic review and meta-analysis of randomized controlled trials

Study (Reference)

Year

Type of surgery /procedure

Patient age range & ASA status

Patients enrolled

(Gender: F/M, n)

Nebulized Ketamine Group (dose, n)

Control Group

(dose, n)

Scale used for sedation measurement

Outcomes

Nebulized Ketamine vs. Placebo Control

Abdel-Ghaffar HS et al. [21]

2019

Elective tonsillectomy

7–12 years, ASA I-II

75 (40/35)

2 mg/kg, n = 25;

1 mg/kg, n = 25

saline 0.9% up to 3 ml, n = 25

5-point scales

I, VI

Nebulized Ketamine vs. Oral Ketamine

Kamel AAF et al. [22]

2020

Elective surgery

3–6 years, ASA I-II

62 (24/38)

3 mg/kg, n = 31

10 mg/kg ketamine orally, n = 31

5-point scales

I, II, VI

Nebulized Ketamine vs. Intravenous Ketamine

Abdel-Ghaffar HS et al. [21]

2019

Elective tonsillectomy

7–12 years, ASA I-II

75 (40/35)

2 mg/kg, n = 25;

1 mg/kg, n = 25

0.5 mg/kg ketamine i.v.,n = 25

5-point scales

I, VI

Nebulized Ketamine vs. Nebulized Midazolam

Abdel-Ghaffar HS et al. [23]

2018

Bone marrow aspiration and biopsy

3–7 years, ASA I-II

60 (27/33)

2 mg/kg, n = 30

0.2 mg/kg nebulized midazolam, n = 30

5-point scales

I-III, VI

Verma I et al. [24]

2021

Elective cardiac surgery

1–12 years, ASA II-III

60 (23/37)

5 mg/kg, n = 30

0.2 mg/kg nebulized midazolam, n = 30

5-point scales

VI, VII

Shereef KM et al. [25]

2022

Elective surgery

3–7 years, ASA I-II

61 (Not mentioned)

2 mg/kg, n = 31

0.2 mg/kg nebulized midazolam, n = 30

5-point scales

VII

Nebulized Ketamine vs. Nebulized Dexmedetomidine

Zanaty OM et al. [14]

2015

Dental procedures

3–6 years, ASA I-II

40 (19/21)

2 mg/kg, n = 20

2 ug/kg nebulized dexmedetomidine, n = 20

7-point scales

I-III, V-VII

Abdel-Ghaffar HS et al. [23]

2018

Bone marrow aspiration and biopsy

3–7 years, ASA I-II

60 (30/30)

2 mg/kg, n = 30

0.2 ug/kg nebulized dexmedetomidine, n = 30

5-point scales

I-III, VI

Mohammad Hazem I et al. [26]

2020

Elective tonsillectomy

3–6 years, ASA I-II

50 (Not mentioned)

3 mg/kg, n = 25

3 ug/kg nebulized dexmedetomidine, n = 25

6-point scales

I-III

Geetha K et al. [27]

2022

Diagnostic MRI

2–8 years, ASA I-II

71 (36/35)

2 mg/kg, n = 36

2 ug/kg nebulized dexmedetomidine, n = 35

4-point scales

I, IV, VI

Shereef KM et al. [25]

2022

Elective surgery

3–7 years, ASA I-II

62 (Not mentioned)

2 mg/kg, n = 31

2 ug/kg nebulized dexmedetomidine, n = 31

5-point scales

VI, VII

Singariya G et al. [28]

2022

Hernia repair surgery

2–8 years, ASA I-II

70 (15/55)

2 mg/kg, n = 35

2 ug/kg nebulized dexmedetomidine, n = 35

6-point scales

I-III, V-VII

Nebulized Ketamine vs. Nebulized Dexmedetomidine plus Nebulized Ketamine

Zanaty OM et al. [14]

2015

Dental procedures

3–6 years, ASA I-II

40 (20/20)

2 mg/kg, n = 20

Nebulized dexmedetomidine/ketamine (1 ug/kg + 1 mg/kg), n = 20

7-point scales

I-III, V-VI

Dharamkhele SA et al. [29]

2020

Elective surgery

3–10 years, ASA I-II

47 (11/36)

2 mg/kg, n = 23

Nebulized dexmedetomidine/ketamine (1 ug/kg + 1 mg/kg), n = 24

7-point scales

I-III

Mohammad Hazem I et al. [26]

2020

Elective tonsillectomy

3–6 years, ASA I-II

50 (Not mentioned)

3 mg/kg, n = 25

Nebulized dexmedetomidine/ketamine (1.5 ug/kg + 1.5 mg/kg), n = 25

6-point scales

I-III

  1. Note: I-Number of children with satisfactory sedation (defined as acceptable venipuncture, acceptable diagnostic procedures, acceptable operations, etc.); II-Number of children with satisfactory separation from parents; III-Number of children with satisfactory mask acceptance; IV-Onset of sedation; V-Recovery time; VI-Various adverse effects (Vomiting, emergence agitation, hypotension, etc.); VII-Hemodynamic status