Haemodynamic Changes during Awake Fibreoptic Bronchoscopy in Nigeria.

INTRODUCTION: There are no reports on haemodynamic changes on West African patients undergoing fibreoptic bronchoscopy (FOB). The aim of this study was to document these changes in West African patients undergoing awake FOB.

MATERIALS AND METHODS: All consenting patients considered for awake FOB had their pulse rates, blood pressures and oxygen saturations documented at various phases of FOB, during procedures and up to 30 minutes after FOB to monitor any changes from pre-procedure levels. The values were analysed using SPSS version 16.

RESULTS: One hundred and sixty FOB were performed on 145 patients. In non- sedated patients, the maximum oxygen saturation fall was 6% at the level of the vocal cord while the pulse rate rose as high as 13% at the carina. Bronchial washings exerted the most changes in sedated patients (SPO2 fell by 4.9%, and pulse rate rose by 11.9%). The mean arterial pressure increased occurred during bronchial washing for both groups (18.7% for non-sedated and 15.7% for sedated patients)

CONCLUSION: Tachycardia, elevations in blood pressure and hypoxaemia are more pronounced and occur earlier during FOB in non-sedated patients. Traversing the vocal cords and bronchial washing evoke the most cardivascular changes during FOB.