PERIPHERAL BLOOD FLOW ASSESSMENT BY  USING PULSE OXIMETERIC AS PLETHYSMOGRAPHIC WAVEFORM  GUIDE TO SUCCESS OF SUBARACHNIOD BLOCK

Dr Jitendra Kumar; Dr Sheetal Songir; Dr Vaishali waindeskar; Dr Krishan Kumar; Dr Ritu shukla.

Volume : V, Issue : IV, April - 2016

PERIPHERAL BLOOD FLOW ASSESSMENT BY USING PULSE OXIMETERIC AS PLETHYSMOGRAPHIC WAVEFORM GUIDE TO SUCCESS OF SUBARACHNIOD BLOCK

Dr Jitendra Kumar, Dr Sheetal Songir, Dr Vaishali Waindeskar, Dr Krishan Kumar, Dr Ritu Shukla.

Abstract :

<p>&nbsp;Background: Spinal anesthesia is a very common and routine procedure. There are different clinical parameters to assess the onset and duration of effect. Pulse Oximeter is a universally available tool and can be used at bedside to access the effect of spinal anesthesia due to peripheral vasodilatation. Methods: fifty patients were posted for surgery under spinal anesthesia. Plethysmographic Waveform analysis was done just before the procedure and immediately 1 min ,5 min, 10 min, 15 min and 20 min after procedure. Changes in waveform were recorded in all patients and analysis was done. Results: In our study we recorded mean pulse oximetry waveform amplitude after -. The mean rise of oximetry waveform amplitude was 6.42,8.2, 9.48, 9.78, 10.02 at 1min, 5min, 10min, 15min, 20 min after sub arachnoid block as compared to preblock value which is 3.32. Sensitivity, specificity, positive predictive value and negative predictive value of those for the plethysmographic waveform test were 97.67%, 28.57%, 89.36% and 66.67% respectivey. Conclusion:The result suggested that plethysmographic amplitude changes just after spinal block has taken its effect ., This method may be easier to use without any additional technology of pulse oximeter. It as a supplemental diagnostic tool to predict successful subarachnoid block in the limited situation, where verbal communication with patient is difficult.</p>