Why surgery is best done during the day rather than night?

Patients who had undergone surgery night are at greater risk of complications and death.

Чому операції краще проводити вдень, а не вночі?

According to international studies conducted in 29 countries, with surgical intervention at night (compared to daytime) increases the risk of complications. This is the first study which examined the frequency of side effects in day and night operations, informs Rus.Media.

“The results of this study will cover all clinicians. It is possible that the increase in incidence, used for this study, is largely the result of physician fatigue and other human factors,” said Dr. William Harrop-Griffiths (William Harrop-Griffiths), Chairman of the Board for the quality of clinical research at the Royal College of anaesthetists (Royal College of Anaesthetists).

The international research team studied 861 9 surgery on adult patients in 146 hospitals in the UK, Europe, North and South America, the Caribbean, the Middle East, Eurasia and South-East Asia.

At night (8:00 PM to 8:00 am) was performed 555 operations (5.6 percent), the rest – during the day. Moreover, 74% of patients who were operated on by night, was it planned, not emergency or urgent surgery.

Given the types of operations and characteristics of patients, the researchers found that during night operations, the total number of adverse events was much higher. Adverse events (decrease in the level of oxygen in the blood, blood loss, partial collapse of the lung tissue and a drop in blood pressure) experienced 44% of patients. Whereas among the patients undergoing surgery the day complications occurred in 34%. Night operations were connected with the necessity of a longer stay in the hospital.

“Patients who have undergone surgery night are at greater risk of complications and death. Patients should avoid nighttime operations if possible, although there are times when waiting would be more risky,” said one of the authors, Professor Gary mills (Gary Mills) from the University of Sheffield (University of Sheffield), UK.

The researchers noted that in the literature have addressed the impact of night work on medical teams such factors as mental or physical fatigue and reduced alertness. Also can play the role of fewer medical staff and the most experienced team members in the hospital last night.

“Because our results suggest that the timing of surgery affect the outcome for patients, it is necessary to strike a balance between risks and benefits in each case – said the report’s author, Dr. Andrea Cortege (Andrea Cortegiani) from the University of Palermo (University of Palermo), Italy. – It can be argued that operations outside the working time should be held only if it is normal practice, this means that the responsible team is United and ready to perform these operations during these time intervals”.

The total number of adverse events was much higher than the scientists expected, due to the comprehensive nature of the study. However, the results are essentially the same in all regions of the world that indicates the global relevance of the findings.