[2] Upon his return to the UK from Lagos, Shaldon studied cardiac catheterisation techniques under Sir John McMichael and wrote a Doctor of Medicine thesis on the splanchnic circulation.
His thesis was supervised by Dame Sheila Sherlock and won Cambridge's Raymond Horton-Smith Prize.
Shaldon pioneered the use of haemodialysis to manage renal failure, by designing central venous catheters that could remain in situ within a patient's femoral vein to allow daily dialysis sessions;[2] these were known at the time as "Shaldon catheters".
[3] He left the Royal Free Hospital in 1966 to establish the National Kidney Centre in London, where chronic haemodialysis patients were trained in home dialysis.
[1] He later left the UK for mainland Europe and the United States, working throughout France, Germany and Sweden at various centres.