PHiliphh Pulse Oximetry Module 862112 Patient Monitor In Good Shape Condition

► Brief Introduction

Pulse Oximetry could be applied to vascular compromise following an open fracture of the tibia or humerus or following dislocation of a native knee or ankle joint or in compartment syndrome.Invasive investigations such as angiography or CT angiography can provide images to diagnose vascular occlusion but sometimes result in delays to surgical exploration and therefore prolong ischaemia.A simple, repeatable, non-invasive test in the form a pulse oximeter may help predict which patients should have immediate surgical exploration of the limb without the need for further vascular imaging.

►Discussion

The PULSE Study has demonstrated that the pulse oximeter trace is quickly responsive to changes in perfusion of the upper and lower limb, when it is manipulated by tourniquet infl ation. The normal biphasic trace is lost fi rst with 10–45 seconds of tourniquet infl ation. This fi nding is consistent with observations in supratrochlear humeral fracture in children associated with complete division / occlusion or intimal damage to the vessel requiring surgical intervention. This study has shown that changes or absence of the biphasic waveform, when compared with the contralateral normal limb is a good indicator of vascular compromise.The methodology has been shown to be effective and repeatable in volunteers in this study. However, it has not been used in those with injuries, who may have confounding factors such as inadequate resuscitation and reduced circulating volume, hypoxia due to concurrent thoracic or abdominal injuries,anaemia or inadequately reduced fractures, vascular occlusion due to dislocation or intimal damage orcompartment syndrome. However, this study has demonstrated the effectiveness of the pulse oximetertrace and perfusion index in diagnosing reduced perfusion quickly and non-invasively. Application of the pulse oximeter in clinical situations is planned for the primary assessment and management of thepatients with lower limb injuries, dislocations or compartment syndrome. The technology is widely available in the resuscitation area of the Accident and Emergency department, in intensive care and in the operating theatre.

►Conclusions

This study confi rms that the pulse oximeter probe can accurately diagnose compromise to the blood flow in the limb after application of a tourniquet. Clinical assessment of capillary refi ll does not exclude poor perfusion due to the potential pooling of peripheral blood. The pulse oximeter waveform is a simple,repeatable, non-invasive test which has high sensitivity and rapidly and accurately detects vascular compromise. Oxygen saturation values are not useful, as they remain normal after occlusion of blood supply and are then unrecordable.

► Specification Of PHiliphh Pulse Oximetry Module 862112

Thank you for your time! If you have other questions about our PHiliphh Pulse Oximetry Module 862112, please feel free to contact us. We are always ready to serve you.