It may also occur because of some severe obstruction like kidney stones or tumours.

This time delay can give important information to the urologist on where and how severe the obstruction is.

He appears to have been successful in general, but on one occasion the act went wrong and he suffered severe intestinal obstruction.

It turned out that Ms. Perez had severe obstructions in the blood vessels of her leg.

In rare cases, severe obstruction of the urine flow develops and may lead to complications, including complete or partial blockage of the urethra, urinary tract infection (UTI), bladder stones, or visible blood in the urine.

Other risk factors for sudden death include severe obstruction of the left ventricle, multiple fainting (syncope) episodes, recurring episodes of ventricular tachycardia, and an abnormal drop in blood pressure during exercise.

This may also explain the finding that the AL and the AH cases in this study did not respond to any treatment and had a poor prognosis when they presented with severe intestinal obstruction.

This effect could be further increased in severe obstruction with active exhalation and no active breaking.