Global Perfusion Practice Survey: Readiness of On-Call and Emergency Operation Rooms

INTRODUCTION

Perfusion safety in cardiac surgery is vital, and this survey explores perfusion practices, perspectives, and challenges related to it. Specifically, it examines the readiness of on-call and emergency operation rooms for perfusion-related procedures during urgent situations. The aim is to identify gaps and enhance perfusion safety protocols, ultimately improving patient care.

METHODS

This was a preliminary survey conducted as an initial exploration before committing to a comprehensive study. The sample size was primarily determined based on a one-month time frame. The survey collected data from 236 healthcare professionals, including cardiac surgeons, perfusionists, and anesthetists, using an online platform. Ethical considerations ensured participant anonymity and voluntary participation. The survey comprised multiple-choice and open-ended questions to gather quantitative and qualitative data.

RESULTS

The survey found that 53% preferred a dry circuit ready for emergencies, 19.9% preferred primed circuits, and 19.1% chose not to have a ready pump at all. Various reasons influenced these choices, including caseload variations, response times, historical practices, surgeon preferences, and backup perfusionist availability. Infection risk, concerns about error, and team dynamics were additional factors affecting circuit readiness.

CONCLUSION

This survey sheds light on current perfusion practices and challenges, emphasizing the importance of standardized protocols in regards to readiness of on-call and emergency operation rooms. It provides valuable insights for advancing perfusion safety and patient care while contributing to the existing literature on the subject.

Technical factors affecting cardiac surgical mortality in Australia

Aim

Examination of potentially avoidable issues in surgical deaths can provide a basis for quality improvement. Perioperative technical factors in cardiac surgery may lead or contribute to patient mortality. Using data from a well-established and comprehensive national surgical mortality audit, we aimed to identify and describe clinical management issues leading to mortality in Australian cardiac surgical patients.

Methods

Retrospective analysis of a cardiac surgical dataset from the Australian and New Zealand Audit of Surgical Mortality (February 2009 to December 2015) was undertaken. Clinical management issues related to technical factors were analyzed using a thematic analysis approach. Technical clinical management issues were categorized based on the most common themes, followed by qualitative analysis of each theme.

Results

We identified 256 patients with least one technical management issues (total 270). Injury to structures was the most common theme ( n = 115, 44.9%), followed by unaddressed surgical pathology ( n = 39, 15.2%) and inadequate myocardial protection ( n = 34, 13.2%). More specifically, the most common structural injury involved the right ventricle, with the aorta and femoral vessels also commonly injured. The most common unaddressed surgical pathology was incomplete coronary revascularization, followed by systolic anterior motion of the mitral valve during mitral repair. Graft failure occurred during coronary artery bypass graft surgery, with a poor target vessel being a common issue.

Conclusion

Technical factors in cardiac surgery resulting in potentially avoidable mortality constitute an important subset of deaths. These findings can inform various stakeholders to improve the quality and safety of surgical care.

Assessment of three methods for removing massive air in a cardiopulmonary bypass circuit: simulation-based multi-discipline training in West China Hospital

BACKGROUND AND OBJECTIVE

A multi-discipline cardiac and cardiopulmonary bypass (CPB) team simulation scenario was established to compare three different de-airing approaches dealing with massive air embolism in CPB, so as to formulate a standardized procedure to handle this adverse acute event more proficiently and ensure clinical safety.

METHOD

A simulation-based clinical CPB massive air embolism scenario was developed by a cardiac and CPB team. Study Objects: Five licensed perfusionists and five CPB trainees were matched randomly into five pairs. Each pair would simulate the three different de-airing approaches separately as followed: (1) Conventional Method: arterial line filter (ALF) de-airing purge line and oxygenator self-recirculation bypass were used to de-air; (2) Arterial-Venous Loop (A-V Loop) Method: surgeons reconnected the arterial and venous lines to de-air by restoring the original priming A-V loop configuration; (3) Isolation of the ALF Method: this ensures de-bubbling of the CPB circuit, but bypasses the ALF function. Assessment Criteria: (1) Times to recovery (duration of the circulation suspension); (2) Subjective evaluation of skill and non-skill performances.

RESULTS

As to times to recovery, the Conventional Method group took 290.6 s ± 36.2, the A-V Loop Method group took 196.8 s ± 52.0 and the Isolation of ALF group took 99.4 s ± 15.1. The statistical difference is significant among the three groups (p<0.01). The subjective evaluation of training performance indicates that this simulation-based training is effective in assessing both skill and non-skill abilities.

CONCLUSION

CPB simulation-based training was effective in comparing de-airing strategies and can instruct perfusion practices how to optimize techniques. For well-trained, multi-discipline cardiac teams, the A-V Loop Method is highly efficient and reliable in managing CPB massive air embolism. For cardiac teams that do not have this sophisticated training, the Isolation of ALF Method should be their alternative option.