Results of the initial large randomised trial (VENT study) (23) were not as encouraging as the preliminary studies (24). A total of 321 patients were randomised to Zephr™ endobronchial valve placement or best medical care with a 2:1 ratio. A sham procedure was not undertaken in this stu...
infection and congenital malformation), craniofacial defects fall into several categories, including bone, cartilage, soft tissue and tooth defects; and often involve complex tissue defects in clinical practice. These impairments negatively influence the patients’ quality of life by impacting vital oral f...