Abstract
Endotracheal intubation is a routine procedure performed by anaesthesiologists worldwide. It is as routine as the placement of a peripheral intravenous catheter. Albeit the gold standard for securing the airway, endotracheal intubation comes with it's share of adverse effects, one of the worst being loss of voice or aphonia. A literature search in major medical databases revealed useful information about the aetiopathogenesis, various mechanisms and risk factors leading to vocal symptoms and acoustic variations. Patient risk factors such as age and co-morbid conditions and anaesthetic considerations such as size of endotracheal tube, number of attempts, mean cuff pressure, anaesthetic agents used and nature and duration of surgery all seem to have a role in this intriguing problem. This review also includes cases we have personally come across in our practice. Based on our experience of cases that we have come across, we propose an algorithm to avoid such a problem.
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