There's also the delayed drowning, which can kill up to several hours after the victim has reached dry land.

Which is technically near drowning that is left untreated or the treatment is unsuccessful.

From wikipedia (dry drowning, as it's also called):
"When water or other foreign bodies are inhaled, laryngospasm occurs and the person's larynx spasms shut. As a result, the vacuum created by the diaphragm cannot be filled by the inrush of air into the lungs, and the vacuum persists. In an attempt to force air in through the spasmed larynx, the person may breathe deeper and with more effort, but this only increases the vacuum's force inside the chest. The obstruction to the inflow of oxygen causes hypoxia, and the obstruction to the outflow of carbon dioxide causes acidosis, both resulting in death.[1]

In addition, a multifactorial form of pulmonary edema is produced. The heart continues to beat normally during this time, and blood continues to circulate, though pulmonary oxygen and carbon dioxide gas exchange is markedly reduced. The volume of blood in the pulmonary circulation increases, by pulling in more blood from the abdomen, head, arms and legs; abnormally large volumes of this blood enter the pulmonary circulation via the superior and inferior vena cavae (great veins) in response to the persistent partial vacuum. From the vena cavae, the increased blood volume flows through the right atrium and into the right ventricle. The blood volume is great enough to stretch out the ventricle, similar to water entering a balloon."

-jh