Research Article

Change in Antimicrobial Therapy Based on Bronchoalveolar Lavage Data Improves Outcomes in ICU Patients with Suspected Pneumonia

Table 1

Demographic characteristics of patients (n = 150).

Demographic dataOverall (n = 150)Antimicrobial modified group (n = 113)No-change group (n = 37) value

Age group
<205 (3.3)4 (3.54)1 (2.70)0.15
20–5033 (22)29 (25.66)4 (10.81)
>50112 (74.7)80 (70.80)32 (86.49)

Gender
Male100 (66.67)74 (65.49)26 (70.27)0.59
Female50 (33.33)39 (34.51)11 (29.73)
Smoking52 (34.7)39 (34.51)13 (35.14)0.95

Comorbidities
Diabetes mellitus44 (29.3)33 (29.2)11 (29.73)0.95
Hypertension46 (30.7)33 (29.20)13 (35.14)0.41
Chronic kidney disease13 (8.7)7 (6.19)6 (16.22)0.061
Ischemic heart disease5 (3.3)4 (3.54)1 (2.70)0.81
Others11 (7.3)6 (5.31)5 (13.51)0.01

Prebronchoscopy diagnosis n (%)
Community-acquired pneumonia81 (54.0)63 (55.75)18 (48.65)0.49
Ventilator-associated pneumonia20 (13.3)16 (14.16)4 (10.81)
Hospital-acquired pneumonia19 (12.7)12 (10.62)7 (18.92)
Lung collapse (with suspected pneumonia)15 (10.0)10 (8.85)5 (13.51)
Aspiration pneumonia5 (3.3)3 (2.65)2 (5.41)
Others (with suspected pneumonia)10 (6.7)9 (7.96)1 (2.70)

Route of bronchoscope insertion n (%)
Trans endotracheal tube63(42)47 (41.59)16 (43.24)0.66
Trans nasal77 (51.3)57 (50.44)20 (54.05)
Trans oral4 (2.7)4 (3.54)0
Trans tracheostomy6 (4)5 (4.4)1 (2.7)
Invasive mechanical ventilation64 (42.7)48 (42.5)16 (43.2)0.94

Chi-square test; a value is for the difference between the two groups, i.e., the antimicrobial modified group and the no-change group. Seven patients (4.7%) were human immune deficiency virus positive (HIV-positive). The most common symptom at presentation was cough in 107 patients (71.33%) followed by breathlessness in 97 patients (64.66%). Other symptoms included sputum production (n = 72 (48%)), fever (n = 71 (47.33%)), and haemoptysis (n = 4 (2.67%)).