回复：求建议--胃癌后期，切除3/4，现在等。。

No 1 important is to control her pain. Ask the doctor to give her PCA.
Palliative treatment is performed by a team of doctors and medical personel. They are working with patient's family member too.
Her condition may not tolerate any invasive procedure for pain control. Actually, the one of best way to control this kind of pain is the intrathecal pump therapy.
北京首都医院有相对较强的痛症科。许多医院未提供此专科。