Prospective analysis of goal-directed fluid therapy vs conventional fluid therapy in perioperative outcome of composite resections of head and neck malignancy with free tissue transfer.
2021
Background and Aim Head and neck cancer surgeries with free tissue transfer are complex procedures, and fluid management can grossly affect the microvascular anastomosis. We hypothesise that intra-operative goal-directed fluid therapy (GDFT) is the key to administer fluid individualised to a patient's requirement. The aim of this study was to observe the role of GDFT in perioperative flap outcome and length of hospital stay. Methods A randomised prospective controlled study was performed in 106 patients undergoing composite resection of head and neck cancer with free tissue transfer. Patients in Group A received GDFT based on stroke volume variation whereas Group B received conventional fluid therapy intra-operatively. The endpoints of this study were total perioperative fluid, fluid boluses, vasopressor requirement, flap outcome and length of intensive care unit and hospital stay. Statistical analysis was done using Chi-square test. Results The total intra-operative fluid given to both the groups was comparable but patients in Group A received more boluses and vasopressors compared to Group B during intra-operative period. The amount of fluid given in the first 24 hours post-operatively was significantly less in Group A (1807 + 476 ml) compared to Group B (2205 + 382 ml). Incidence of hypotension with tachycardia was observed in three patients in Group B and none in Group A. Poor flap outcome was observed in one patient in Group A versus four in Group B due to thrombosis. Conclusion GDFT helps in early detection of fluid deficit and may avoid complications arising due to inadequate microvascular perfusion during the peri-operative period.
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