A surgical system for sealing a hollow organ, the surgical system including: a pair of electrodes a memory storing data which include patterns corresponding to predetermined burst pressure value an electrosurgical generator configured to generate a high frequency current for sealing the hollow organ and one or more processors configured to: perform the sealing by application of the high frequency current through the hollow organ measure impedance of the hollow organ between the pair of electrodes with time during the performing the sealing subsequent to performing the sealing, classify parameters related to the impedance as one of patterns corresponding to predetermined burst pressure value according to the data and estimate the burst pressure value of the hollow organ based on the one of patterns.
