The mechanisms by which chronic cervical spinal cord injury alters respiratory function and plasticity are not well understood. We speculated that spinal hemisection at C(2) would alter the respiratory pattern controlled by vagal mechanisms. Expired volume (V(E)) and respiratory rate (RR) were measured in anesthetized control and C(2)-hemisected rats at 1 and 2 mo postinjury. C(2) hemisection a...

a comparison on dentofacial cephalometric measurements between two mouth breathing groups with anterior and posterior obstructions of nasal airway zaeim* - dr. m.r. baghersad** dr. m.h. toodeh * - assistant professor of oral orthodontics dept. - faculty of dentistry - yazd university of medical sciences. ** - dentist. background and aim: the goal of this study was to compare dentofacial cephalo...

the missing of any tooth is due to undeveloped dental lamina that possible is caused by genetic factors such as ectodermal dysplasia,local infection and systemic diseases.in some cases,the lack of teeth is so wide that causes undevelopment in all premanent teeth which is known as comlete anodontia.the lack of lateral incisors causes speech defect,difficulty in breathing,spacing in other teeth,d...

Endogenous oscillations in blood pressure (BP) and cerebral blood flow have been associated with improved orthostatic tolerance. Although slow breathing induces such responses, it has not been tested as a therapeutic strategy to improve orthostatic tolerance. With the use of a randomized, crossover sham-controlled design, we tested the hypothesis that breathing at six breaths/min (vs. spontaneo...

abstract background: coughing and deep breathing after sternotomy causes severe pain. this study was conducted to assess the effect of cold therapy on the pain in patients undergoing open heart surgery. materials and methods: in a randomized controlled trial (rct) with crossover design, 50 eligible and consenting patients were recruited and randomly allocated to gel pack and non-gel pack groups...

UNLABELLED We tested the hypothesis that pressure-support ventilation (PSV) allows a reduction in emergence time and laryngeal mask airway (LMA) removal time after general anesthesia compared to volume-controlled mechanical ventilation (CMV). Because spontaneous breathing (SB) is often used with LMA under general anesthesia, patients were allocated randomly to three groups (CMV, SB and PSV). Th...

Purpose: Physiological changes during pregnancy impose numerous changes on the respiratory system that can affect the health of both mother and fetus. Regarding the importance of the normal breathing in the health of mother and fetus, this study aimed to investigate the effect of breathing exercise on breathing pattern of pregnant women.  Methods: The study population was pregnant women...