Exploring cognitive impairment in the early stages of an out-of-hospital cardiac arrest - a consecutive case series study.

Cognitive deficits are common, although often mild, in out-of-hospital cardiac arrest patients. Prevalence and severity of cognitive deficits on discharge from acute hospital, however, are not systematically assessed in clinical practice, and not frequently reported in scientific literature, potentially hindering the development of appropriate follow-up care pathways for these patients. We hereby present data from a consecutive case series of 75 out-of-hospital cardiac arrest patients discharged from our hospital over a period of 16 months; for 46 of them we were able to obtain a cognitive profile around the time of discharge from hospital, with 37 of them experiencing cognitive deficits, ranging from mild to severe. Memory, verbal fluency and cognitive flexibility were the areas more frequently impaired. The patients we were able to assess did not differ for age, cerebral performance category score and time to return of spontaneous circulation from those we were unable to assess. Cognitive deficits were not associated with duration of "no/low blood flow" during cardiac arrest or with age. Our results suggest that cognitive deficits in the immediate aftermath of out-of-hospital cardiac arrest are common; however, these may be missed due to lack of systematic assessment and use of poorly sensitive cognitive tests.

Care After REsuscitation: Implementation of the United Kingdom's First Dedicated Multidisciplinary Follow-Up Program for Survivors of Out-of-Hospital Cardiac Arrest.

Survival rates after cardiac arrest (CA) are increasing, with more patients and their families living with the psychological consequences of surviving a sudden CA. The currently available neuropsychological assessment tools and therapies were not designed for CA, and may be inadequate. The Essex Cardiothoracic Centre set up the United Kingdom's first dedicated multidisciplinary "Care After REsuscitation" (CARE) service, offering CA survivors and their caregivers systematic psychological, cognitive, and specialized medical support for the first 6 months after CA. Twenty-one patients were recruited into the CARE pilot service evaluation. Patients' health at hospital discharge was poor; however, by 6 months all components (except general health) had improved significantly, and were close to that experienced by "healthy" individuals. Five (26%) required referral to a psychiatrist, with all 5 (26%) subsequently being diagnosed with moderate-to-severe depression, and 3 (16%) with comorbid post-traumatic stress disorder. Our study demonstrates a large unmet clinical need in general and neuropsychological assessment, and our results suggest that offering appropriate and prompt specialist diagnosis and therapies leads to an improvement in health at 6 months.

Early targeted brain COOLing in the cardiac CATHeterisation laboratory following cardiac arrest (COOLCATH).

INTRODUCTION: Trials demonstrate significant clinical benefit in patients receiving therapeutic hypothermia (TH) after cardiac arrest. However, incidence of mortality and morbidity remains high in this patient group. Rapid targeted brain hypothermia induction, together with prompt correction of the underlying cause may improve outcomes in these patients. This study investigates the efficacy of Rhinochill, an intranasal cooling device over Blanketrol, a surface cooling device in inducing TH in cardiac arrest patients within the cardiac catheter laboratory. METHODS: 70 patients were randomized to TH induction with either Rhinochill or Blanketrol. Primary outcome measures were time to reach tympanic ≤34 °C from randomisation as a surrogate for brain temperature and oesophageal ≤34 °C from randomisation as a measurement of core body temperature. Secondary outcomes included first hour temperature drop, length of stay in intensive care unit, hospital stay, neurological recovery and all-cause mortality at hospital discharge. RESULTS: There was no difference in time to reach ≤34 °C between Rhinochill and Blanketrol (Tympanic ≤34 °C, 75 vs. 107 mins; p=0.101; Oesophageal ≤34 °C, 85 vs. 115 mins; p=0.151). Tympanic temperature dropped significantly with Rhinochill in the first hour (1.75 vs. 0.94 °C; p<0.001). No difference was detected in any other secondary outcome measures. Catheter laboratory-based TH induction resulted in a survival to hospital discharge of 67.1%. CONCLUSION: In this study, Rhinochill was not found to be more efficient than Blanketrol for TH induction, although there was a non-significant trend in favour of Rhinochill that potentially warrants further investigation with a larger trial.

Haemodynamic monitoring with pulse-induced contour cardiac output (PiCCO) in critical care.

Haemodynamic monitoring is essential for the management of the critically ill. Effective monitoring can give data that permit analysis of key circulatory functions and the anticipation of deterioration so that pro-active treatments can be initiated. There are many methods of monitoring the haemodynamic status of patients. The authors have compared three of the most commonly used methods in the general Critical Care Unit. These are the pulmonary artery catheter (PAC), oesophageal Doppler, and pulse-induced contour cardiac output (PiCCO) studies. The focus is upon PiCCO, which is a comparatively less invasive method than the traditionally used PAC. This has been chosen due to the authors' particular interest in the additional parameters which can be monitored using PiCCO. With the PiCCO system it is possible to measure intrathoracic blood volume (ITBV), extravascular lung water (EVLW) and cardiac function index (CFI). These parameters are of interest as they are considered to be the most specific measures of cardiac preload, pulmonary oedema and contractility and a global indicator of cardiac performance.