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Year : 2015  |  Volume : 5  |  Issue : 1  |  Page : 3-8

Impact of acetazolamide use in severe exacerbation of chronic obstructive pulmonary disease requiring invasive mechanical ventilation

Intensive Care Unit, Habib Bourguiba University Hospital, Sfax, Tunisia

Correspondence Address:
Mabrouk Bahloul
Professeur Agrégé, Service de Réanimation médicale, Hôpital Habib Bourguiba Route el Ain Km 1, 3029 Sfax
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2229-5151.152296

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Purpose: To analyse the impact of acetazolamide (ACET) use in severe acute decompensation of chronic obstructive pulmonary disease requiring mechanical ventilation and intensive care unit (ICU) admission . Patients and Methods: Retrospective pair-wise, case-control study with 1:1 matching. Patients were defined as cases when they had received acetazolamide (500 mg per day) and as controls when they did not received it. Patients were matched according to age , severity on admission (pH, PaO 2 /FiO 2 ratio) and SAPSII score. Our primary endpoint was the effect of ACET (500 mg per day) on the duration of mechanical ventilation. Our secondary endpoints were the effect of ACET on arterial blood gas parameters, ICU length of stay (LOS) and ICU mortality. Results: Seventy-two patients were included and equally distributed between the two studied groups. There were 66 males (92%). The mean age (± SD) was 69.7 ± 7.4 years ranging from 53 to 81 years . There were no differences between baseline characteristics of the two groups. Concomitant drugs used were also not significantly different between two groups. Mean duration of mechanical ventilation was not significantly different between ACET(+) and ACET(-) patients (10.6 ± 7.8 days and 9.6 ± 7.6 days, respectively; P = 0.61). Cases had a significantly decreased serum bicarbonate, arterial blood pH, and PaCO 2 levels . We did not found any significant difference between the two studied groups in terms of ICU LOS. ICU mortality was also comparable between ACET(+) and ACET(-) groups (38% and 52%, respectively; P = 0.23). Conclusion: Although our study some limitations, it suggests that the use of insufficient acetazolamide dosage (500 mg/d) ACET (500 mg per day) has no significant effect on the duration of mechanical ventilation in critically ill COPD patients requiring invasive mechanical ventilation. Our results should be confirmed or infirmed by further studies.

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