The Application Of Entire Process Suction Drainage To Prevent Fistula After Superficial Parotidectomy And Partial Superficial Parotidectomy

ObjectiveParotid salivary fistula is a common complication after parotidectomy, and suction drainage tube combining with bandaged one week in the area of parotid lesions, has become the conventional method of preventing parotid salivary fistula. This study focuses on evaluating the clinic application of entire process suction drainage to prevent salivary fistula after superficial parotidectomy and partial superficial parotidectomy, and to select the best time point to remove the drainage according to the drain output and the drain duration.MethodsA cohort of194patients with parotid diseases after superficial parotidectomy was assigned into traditional pressure group (82patients) and entire process suction group (112patients).103patients after partial superficial parotidectomy included traditional pressure group (50patients) and entire process suction group (53patients). Pressure dressing was involved after suction drain removed in traditional pressure group, while entire process suction was fixed in entire process suction group. Record and compare the postoperative salivary fistula between the two groups from superficial and partial superficial parotidectomy. The relationship of the output, duration and salivary fistula was also analyzed.ResultsIn this two kinds of operations, no statistical significance(P>0.05) was found in comparing the occurrence of salivary fistula of the traditional pressure groups and the entire process suction groups. In the entire suction groups of this two kinds of operation, significant correlation of the drain duration and salivary fistula was also not found (P>0.05). However in superficial parotidectomy, the drain output of(0～20) ml and(20～30) ml resulted in the different rates of the salivary fistula related to postparotidectomy; while in partial superficial parotidectomy, the comparison of salivary fistula rate of the drain output of (0～10) ml and(20～30) ml revealed remarkable statistical significance.ConclusionsAccording to our findings, the entire process suction used as drainage can be a substitute for the traditional pressure method in preventing the salivary fistula related to postparotidectomy, and this avoids many complications due to the pressure bandage. In addition, drainage output at extubation time is more important than drainage duration, and the best time point of drainage extubation referred to drain output less than20ml in24-hour period in superficial parotidectomy and drain output less than10ml in a day is best for partial superficial parotidectomy, which can be used as a consensus to guide clinical treatment.