SurgeryLocal Blood FlowPeripheral Nervous SystemBlood FlowMaxillofacial SurgeryBlood Flow MeasurementHealth SciencesNervous SystemMacaque MonkeysNeurophysiologyNeuroanatomyPhysiologyDentoalveolar SurgerySympathetic SystemCentral Nervous SystemCraniofacial SurgeryAnesthesiaMedicineAnesthesiology
The radioactive microsphere method was used to quantitate blood flow to selected maxillary tissues before and during left-side cervical sympathetic stimulation in a group of 15 macaque monkeys, nine of which received Le Fort osteotomies. The sympathetic system to regulate blood flow appears to have been modified and has not returned to its normal regulatory status six weeks after the operation.