How is moderate mediastinal emphysema typically resolved?

Moderate mediastinal emphysema, which involves the presence of air in the mediastinum, is typically managed by administering 100 percent oxygen. The rationale behind this method is that breathing pure oxygen helps to facilitate the reabsorption of the excess air from the mediastinal space. The use of high concentrations of oxygen increases the rate of nitrogen and helium absorption, thereby promoting a faster recovery from this condition.

Breathing 100 percent oxygen can also reduce the volume of gas present by reducing the partial pressure of air in the mediastinum, which can help alleviate the condition. This approach is especially relevant in cases where the mediastinal emphysema is not severe enough to warrant invasive procedures or hyperbaric treatment.

Other options, while they may have their own contexts in diving medicine, do not directly address the resolution of moderate mediastinal emphysema. Painkillers can help manage symptoms but do not resolve the underlying condition. Deep diving might exacerbate symptoms by increasing pressure and may not be a safe option for someone with emphysema. Hyperbaric treatment is typically reserved for more severe cases or specific conditions rather than moderate mediastinal emphysema.