Maximizing scavenger effectiveness using a 45 L/min evacuation rate as recommended by the National Institute of Occupational Safety and Health (NIOSH) may alter the sedation level of the dental patient. The purpose of this pilot study was to determine if scavenging at the recommended NIOSH evacuation rate reduced psychomotor and cognitive impairment as a result of inhaling nitrous oxide. Comput...

INTRODUCTION Clinical studies have shown that inhaled corticosteroids can induce rapid vasoconstriction in the airways, leading to decreased mucosal blood flow. The aim of this study was to investigate whether vasoconstriction of the pulmonary circulation after short inhalation of a corticosteroid can be detected in the isolated and perfused rat lung (IPL) - a model which could serve as a subst...

AIMS We wanted to study the effects of a 600 micrograms inhaled salbutamol dose on the cardiovascular and respiratory autonomic nervous regulation in eight children suffering from bronchial asthma. METHODS In this randomized, double-blind, placebo-controlled, crossover study we continuously measured electrocardiogram, finger systolic arterial pressure (SAP) and flow-volume spirometry at basel...

background: rhinocerebral mucormycosis is a fatal infection typically affecting diabetic or immunosuppressed patients. in most cases, infection is caused by inhalation of fungal spores. mortality rate of patients is very high (40-85%).  case presentation: in this study, three diabetic patients with rhinocerebral mucormycosis were presented. the etiologic agents of mucormycosis in two patients w...

OBJECTIVE This study examined the effects of "tanden breathing" by Zen practitioners on cardiac variability. Tanden breathing involves slow breathing into the lower abdomen. METHODS Eleven Zen practitioners, six Rinzai and five Soto, were each studied during 20 minutes of tanden breathing, preceded and followed by 5-minute periods of quiet sitting. During this time, we measured heart rate and...

Impregnation spray products are used for making surfaces water and dirt repellent. The products are composed of one or more active film-forming components dissolved or suspended in an appropriate solvent mixture. Exposure to impregnation spray products may cause respiratory distress and new cases are reported frequently. The toxicity appears to be driven by a disruption of the pulmonary surfact...

Article history: Received on: 01/12/2016 Revised on: 18/12/2016 Accepted on: 30/12/2016 Available online: 31/01/2017 The blended essential oil was composed of eucalyptus, rosemary, patchouli, and pine oils. The blended oil was analyzed by GC-MS. The effects of blended oil on autonomic parameters and emotional changes in humans following inhalation were an investigation in this study. Thirty hea...

BACKGROUND It is not known whether parasympathetic outflow simultaneously acts on bronchial tone and cardiovascular system waxing and waning both systems in parallel, or, alternatively, whether the regulation is more dependent on local factors and therefore independent on each system. The aim of this study was to evaluate the simultaneous effect of different kinds of stimulations, all associate...

A physiologically based pharmacokinetic (PB-PK) model was developed to describe trichloroethylene (TCE) kinetics in the lactating rat and nursing pup. The lactating dam was exposed to TCE either by inhalation or by ingestion in drinking water. The nursing pup's exposure to TCE was by ingestion of maternal milk containing TCE. The kinetics of trichloroacetic acid (TCA), a metabolite of TCE, were...

The chief complaint of asthmatic patient is dyspnea, but how this symptom occurs remains still considerably unknown.1)-5) Despite the ac cumulation of informations about pulmonary functions of asthmatic patients, many investigators1),4)6)7)8) have chiefly concerned the problems of lung volume, pulmonary gas distributions, ventilations and recently pulmonary circulations. Moreover, these investi...