经过(guo)1个多小(xiao)时的奋战，周奶奶的纵隔肿(zhong)瘤被完(wan)整切除。整个手术过(guo)程(cheng)中麻醉师精(jing)心(xin)监护，保证了患者生(sheng)命(ming)体征平稳(wen)；手术(shu)室(shi)护士与主刀、助手配(pei)合默契，确保(bao)了手术协调流畅。