The most common symptom of PKD is high blood pressure. Other symptoms are: 1  Pain in the back and side. 2  Blood in the urine. 3  Frequent kidney infections.he most common symptom of PKD is high blood pressure. Other symptoms are: 1  Pain in the back and side. 2  Blood in the urine. 3  Frequent kidney infections.
The longest river of Europe is the River Volga. It flows primarily in a southerly direction through Russia into the Caspian Sea. The second longest is the Danube, flows west to east before entering the Black Sea.
About the Area. The Volga Delta is the largest inland river delta in Europe. The Volga River starts in the Valday Hills of northwestern Russia and flows 3,700km (2,300 miles) before creating this delta and pouring into the Caspian Sea. The delta covers an area of 27,224kmÂ² and is approximately 160km across.