title: The effect of nebulized NaHCO3 treatment on "RADS" due to chlorine gas inhalation.
abstract: Chlorine is one of the most common substances involved in toxic inhalation. As with all irritant gases, the airway injuries caused by chlorine gas may result in clinical manifestations similar to those of asthma. In this study, we investigated the effect of nebulized sodium bicarbonate (NSB) on the treatment and quality of life (QoL) of victims exposed to chlorine gas. Forty-four consecutive patients with reactive airways dysfunction syndrome (RADS) due to chlorine inhalation (40 females and 4 males, age range 17-56 yr) were included in this study. Patients were placed in control and treatment groups in a sequential odd-even fashion based on their order of presentation. Treatment of all patients included corticosteroids and nebulized short-acting beta2-agonists. Then the control group (n = 22) received nebulized placebo (NP), and the NSB group (n = 22) received NSB treatment (4 cm3 of 4.20% sodium bicarbonate solution). A quality of life (QoL) questionnaire and pulmonary function tests (PFTs) were performed before and after treatments in both groups. The most common symptoms were dyspnea (82%) and chest tightness (82%). Baseline characteristics of both groups were similar. Compared to the placebo group, the NSB group had significantly higher FEV1 values at 120 and 240 min (p < .05). Significantly more improvement in QoL questionnaire scores occurred in the NSB group compared to the NP group (p < .001). Thus, NSB is a clinically useful treatment, as tested by PFTs and QoL questionnaire, for patients with RADS caused by exposure to chlorine gas.
authors.affiliation: Department of Emergency Medicine, School of Medicine, Atatürk University, Erzurum, Turkey.
authors.forename: Sahin
authors.initials: S
authors.lastname: Aslan
authors.forename: Hayati
authors.initials: H
authors.lastname: Kandiş
authors.forename: Metin
authors.initials: M
authors.lastname: Akgun
authors.forename: Zeynep
authors.initials: Z
authors.lastname: Cakir
authors.forename: Tacettin
authors.initials: T
authors.lastname: Inandi
authors.forename: Metin
authors.initials: M
authors.lastname: Görgüner
mesh_terms: D000293:Adolescent; D000328:Adult; D000393:Air Pollutants / Q000009:adverse effects*; D000420:Albuterol / Q000627:therapeutic use; D001249:Asthma / Q000139:chemically induced / Q000188:drug therapy* / Q000503:physiopathology; D002713:Chlorine / Q000009:adverse effects*; D004311:Double-Blind Method; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D019570:Inhalation Exposure; D008168:Lung / Q000187:drug effects* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009330:Nebulizers and Vaporizers; D011239:Prednisolone / Q000627:therapeutic use; D011788:Quality of Life; D012129:Respiratory Function Tests; D017693:Sodium Bicarbonate / Q000627:therapeutic use*; D011795:Surveys and Questionnaires; D016896:Treatment Outcome
chemical_list: D000393:Air Pollutants; D002713:Chlorine; D017693:Sodium Bicarbonate; D011239:Prednisolone; D000420:Albuterol