Manikandan, G (2013) Role of Hypotensive Anaesthesia in Orthognathic Surgery. Masters thesis, Ragas Dental College and Hospital, Chennai.
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Abstract
PURPOSE: The purpose of this study is assessment of blood loss in orthognathic surgery using nitroglycerine induced hypotensive anaesthesia and comparison of pre and postoperative haemoglobin, haematocrit and means arterial pressure. MATERIALS AND METHOD: 10 young orthognathic patients were operated under hypotensive anaesthesia included in this study. Operations were Anterior maxillary osteotomies (n=6), Lefort I osteotomy (n=1), BSSRO (n=3), Sub apical osteotomy (n=1), Genioplasty (n=3). Pre and Post operative Haemogram, intra operative blood loss, duration of surgery were the studied parameters. Statistical analysis was performed using SPSS version 19. RESULTS: None of the patient required blood transfusion. Mean blood loss was 174.19ml with a range of 77.60 ml to maximum of 283 ml. Mean duration was 174 min with minimum of 75 min and maximum of 290 min. Mean preop Hb level was 12.14 gm%/dl and the mean postop Hb level was 10.14 gm%/dl. Mean preop Haemotocrit was 40.50% and postop Haemotocrit was 30.18%. The mean arterial pressure was 72.86 mmHg with a minimum of 63.30 mmHg and maximum of 78.60 mmHg. CONCLUSION: Blood transfusion in orthognathic surgery could be prevented by induction of Nitroglycerine as hypotensive anaesthetic agent and reduces the length of surgery by improving the quality of surgical field.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Nitroglycerine ; induced hypotensive anaesthesia ; blood loss ; haemoglobin ; haematocrit ; Mean arterial pressure ; Orthognathic surgery. |
| Subjects: | DENTAL > Oral and Maxillofacial Surgery |
| Depositing User: | Subramani R |
| Date Deposited: | 13 Nov 2017 16:43 |
| Last Modified: | 13 Nov 2017 16:43 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/3929 |
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