Hi dear Satish,

Just a thought you can check the bottle of sucker, and substracted from it the volume of saliva secretion (1-2 liter/day). The volume of saliva depend on the duration of your operation.

I hope my thought give you an answer, but this is not very precise estimation.

Best wishes

Sarmad

i should think there are methods of confirming the volime of blood loss in any particular surgery even though i am a consultant in ORAL PATHOLOGY. One method is the 'colourimeter' method. It involves pulling up together all the sterilized gauze used in dabbing and controlling heamorrage

No method is considered as ideal. Choosing the method dependent on operator choice and cost-benefit. there is a need of simple technique for estimating blood loss during surgery.

Baab et al. 1977 et a:l Blood loss was measured using the cyanmethemoglobin comparison technique. The concentration of he­moglobin (Hb) in the aspirated blood was measured at 540nm using a Coleman Jr. spectrophotometer. The blood loss was calculated by comparing the concentra­tion of Hb in the patient's whole blood with the concentration of Hb in aspirated blood times the volume of aspirated blood. This formula was used:

vol. blood lost = [Hb] recovered/ [Hb] whole blood x vol. aspirated blood

Zigdon et al. 2012 Suctioned and collected all the liquids of the oral cavity during surgery, and calculated the net amount of blood volume in the liquids, by means of a colorimetric assay using capillary blood fructosamine as a reference molecule.

Review thos references, you may find additional techniques or methods.

It is difficult to measure the exact amount of blood loss during oral surgery as most of the surgeries use normal saline irregation specially when bone intervention or osseous surgery required. But we can predict amount of blood loss based on

1- type of surgery whether osseous or soft tissue surgery, and wether saline irrigation is required or not

2- duration of the surgery of course longer duration leads To more blood loss

3- site of surgery if there are main blood vessels at that site or just capillaries leads only to oozing of small amounth of blood what ever the duration is.

these are some tip to quantify or predict almost the amount Of blood loss during oral surgery.