A retrospective observational study of critically unwell patients retrieved from Thames Hospital between April 2018 and December 2020.

INTRODUCTION In New Zealand, critically ill patients who present to rural hospitals are typically treated, stabilised and transferred to facilities where more appropriate resources are available. AIM The aim of this study was to describe patients who presented critically unwell and required retrieval from Thames Hospital in the Waikato region. METHODS Notes were reviewed retrospectively for patients who were retrieved from Thames Hospital between 1 April 2018 and 31 December 2020.

Protective effects of beta blockade on pulmonary function when intracranial pressure is elevated.

Intracranial pressure (ICP) was increased by hyperosmolar intracerebral infusion in dogs and the cardiopulmonary and catecholamine (CA) responses followed for 4 h. Increased ICP evoked persistent increases in endogenous CAs, pulmonary vascular pressures, pulmonary blood volume, and venous admixture. Other dogs similarly monitored were treated with a beta-blocking dose of propranolol 25 min after the onset of increased ICP.

Ventilation requirements during high frequency ventilation.

This study was undertaken to investigate ventilatory requirements during high frequency ventilation (HFV). Six anesthetized dogs were ventilated with bird M-2 or Emerson 2-V ventilators at respiratory rates (RRs) ranging from 13-1300 breath/min. PaCO2 was maintained within normal range at all rates by tidal volume (VT) adjustment.