Browsing by Author "Patel, P"

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    Current conduct of deep hypothermic circulatory arrest in China.
    (HSR proceedings in intensive care & cardiovascular anesthesia, 2013-01) Augoustides, JGT; Patel, P; Ghadimi, K; Choi, J; Yue, Y; Silvay, G

    Introduction

    Deep hypothermic circulatory arrest for adult aortic arch repair is still associated with significant mortality and morbidity. Furthermore, there is still significant variation in the conduct of this complex perioperative technique. This variation in deep hypothermic circulatory arrest practice has not been adequately characterized and may offer multiple opportunities for outcome enhancement. The hypothesis of this study was that the current practice of adult deep hypothermic circulatory arrest in China has significant variations that might offer therapeutic opportunities for reduction of procedural risk.

    Methods

    An adult deep hypothermic circulatory arrest questionnaire was developed and then administered at a thoracic aortic session at the International Cardiothoracic and Vascular Anesthesia Congress convened in Beijing during 2010. The data was abstracted and analyzed.

    Results

    The majority of the 56 respondents were anesthesiologists based in China at low-volume deep hypothermic circulatory arrest centers. The typical aortic arch repair had a prolonged deep hypothermic circulatory arrest time at profound hypothermia. The target temperature for deep hypothermic circulatory arrest was frequently measured distal to the brain. The most common perfusion adjunct was antegrade cerebral perfusion, typically monitored with radial arterial pressure and cerebral venous oximetry. The preferred neuroprotective agents were steroids and propofol.

    Conclusions

    The identified opportunities for outcome improvement in this delineated deep hypothermic circulatory arrest model include nasal/tympanic temperature measurement and routine cerebral perfusion, preferably with unilateral antegrade cerebral perfusion monitored with radial artery pressure and cerebral oximetry. Development and dissemination of an evidence-based consensus would enhance these practice-improvement opportunities.
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    Major themes for 2013 in cardiothoracic and vascular anaesthesia and intensive care.
    (Heart, lung and vessels, 2014-01) Gutsche, JT; Riha, H; Patel, P; Sahota, GS; Valentine, E; Ghadimi, K; Silvay, G; Augoustides, JGT
    There has been significant progress throughout 2013 in cardiothoracic and vascular anaesthesia and intensive care. There has been a revolution in the medical and interventional management of atrial fibrillation. The medical advances include robust clinical risk scoring systems, novel oral anticoagulants, and growing clinical experience with a new antiarrhythmic agent. The interventional advances include left atrial appendage occlusion for stroke reduction, generalization of ablation techniques in cardiac surgery, thoracoscopic ablation techniques, and the emergence of the hybrid ablation procedure. Recent European guidelines have defined the organization and practice of two subspecialties, namely general thoracic surgery and grown-up congenital heart disease. The pivotal role of an effective multidisciplinary milieu is a central theme in both these clinical arenas. The anaesthesia team features prominently in each of these recent guidelines aimed at harmonizing delivery of perioperative care for these patient cohorts across Europe. Web-Enabled Democracy-Based Consensus is a system that allows physicians worldwide to agree or disagree with statements and expert consensus meetings and has the potential to increase the understanding of global practice and to help clinicians better define research priorities. This "Democratic based medicine", firstly used to assess the interventions that might reduce perioperative mortality has been applied in 2013 to the setting of critically ill patient with acute kidney injury. These advances in 2013 will likely further improve perioperative outcomes for our patients.