Nevro Corp. provided unaudited preliminary revenue guidance for the fourth quarter and fiscal year 2017. For the quarter, revenue is expected to be in the range of $97.4 million to $97.9 million. Preliminary unaudited U.S. revenue for the fourth quarter of 2017 is expected to be in the range of $80.7 million to $81.0 million. Preliminary unaudited international revenue for the fourth quarter of 2017 is expected to be in the range of $16.7 million to $16.9 million. The company's preliminary unaudited full year 2017 revenue is expected to be in the range of $326.1 million to $326.6 million. The company expects worldwide revenue for the full year 2018 to be in the range of $400.0 million to $410.0 million.