Have to agree with vetinHK - kideny disease is a very difficult disease to treat. Would be interested to know what the common treatment that helped was (I would have considered the method used by the Wanchai Clinic as the common method in my experience).
Re- the specific doctor, I don't want to come across as a cheerleader but I do know that other vets in HK will send some difficult cases to this doctor specifically. He seems to have the respect of his peers.
However, as mentioned before vets are human and perhaps there was poor communication or other probs in specific cases.