Given an abstract of a paper, generate a title for this paper such that conveys the key focus of the paper.

Example Input: Abstract: The occurrence of fever during various blood purification methods was evaluated in a retrospective study. It could be demonstrated, that patients treated chronically by conventional hemodialysis experience six times more febrile episodes than patients on chronic hemofiltration (4.84% versus 0.81%). Since many of the increased temperatures could not be explained by conventional means, it has to be assumed that the treatment itself caused the fever, possibly activating the monocyte hormone interleukin 1. It is of further note that there was no difference in the magnitude of the temperature due to septicaemia or to no obvious cause. This finding necessitates in our opinion an early antibiotic therapy in those cases where fever develops without clear explanation.
Example Output: The occurrence of fever during hemodialysis and hemofiltration. A comparative study.

Example Input: Abstract: A case of intradural metastasis from endometrial carcinoma to the cauda equina is presented. The clinical presentation and radiographic findings were misleading and suggested a herniated nucleus pulposus. Findings at operation were most suggestive of an ependymoma, but final pathological diagnosis revealed endometrial carcinoma. This has never been reported. Once again it demonstrates that surgeons managing lumbar disc disease must be prepared for possible intradural exploration with an appropriate team.
Example Output: Unusual metastasis to the cauda equina: case report.

Example Input: Abstract: Vascular injuries of the lower limb in the presence of extensive soft tissue loss, fractures, or other life-threatening injuries are associated with a high amputation rate. Five patients underwent temporary intravascular shunting during the period of treatment of such injuries. Rapid reperfusion of the limb via such shunts permitted more comprehensive evaluation and management of the lower limb and other associated injuries than would have been possible in the presence of prolonged ischemia.
Example Output:
Intravascular shunts in complex lower limb trauma.