Assessment of the New Provox Life System for Pulmonary Health and Quality of Life After Total Laryngectomy

Background: The benefits of using Heat and Moisture Exchangers (HMEs) for pulmonary rehabilitation after total laryngectomy are widely known. However, current available HMEs do not reach the level of humidification capacity of the nose, and patients adherence to using an HME 24/7 is not always possible. Provox Life HMEs and attachments are a new range of HMEs and attachments, with improved humidification/breathability performance, and designed to suit different situations. Purpose and aim: In this clinical trial, the new Provox Life System was assessed for pulmonary rehabilitation and QoL after total laryngectomy, and compared with currently available HMEs and attachments. Methods: Forty laryngectomized patients, who were previous users of HMEs, were randomized to Usual Care or Provox Life for 6 weeks, after which a cross-over occurred. Data was collected at baseline, and after the end of each study period. Additionally, patients filled in a diary and tally sheet to record their forced expectorations and coughing.