Table 2

VGE in the prone position

Surgical regionYear of publication (single cases unless otherwise stated)Clinical featuresOutcome
Cranial1969170HypotensionFatal
1974:124 review of 107 patients; two VGE episodesHypertension; murmur; arrhythmiasFrequency of embolism 1.7%
1993112AsystoleNon-fatal
1994137Tension pneumocephalus; increase in eco2/Pao2 gradientNon-fatal
1995:90 two episodes in one patientAsystole; bradycardia; hypotensionNon-fatal
200046Decrease in eco2; hypotension; bradycardia; desaturation; froth aspirated from central venous catheterNon-fatal
2001195Decrease in eco2; hypotension; increase in CVP; air aspirated from central venous catheterNon-fatal
Spinal19785Detected with Doppler monitoring; air aspirated from right atrial catheterNon-fatal
198851Hypotension, bradycardia; decrease in eco2; increase in nitrogen on mass spectrometryNon-fatal
198999Cardiovascular instabilityFatal
1990:122 two casesAir bubbles at operative site; cardiac arrestFatal
1991:6 three casesHypotension; bradycardia; Millwheel murmur; ECG changes; decrease in eco2; asystole; air aspirated from central venous catheter (one case)One non-fatal; two fatal
1992:76 two casesHypotension; arrhythmia; air bubbles at operative site; air aspirated from central venous catheter (one case)One fatal; one non-fatal
1992:38 three casesDecrease in eco2; tachycardia; ECG changes; bronchospasm; millwheel murmurNon-fatal
1997:185 two casesLoss of SSEP; decrease in eco2; asystole; air palpated in heart via thoracotomy (one case)Both fatal
199739Decrease in eco2; hypotension; desaturation; ST segment elevationNon-fatal
1999113Decrease in eco2; hypotension; bradycardia; desaturationFatal
2000:135 four patients (part of larger blood transfusion study)Non-fatal
200122Decrease in eco2; hypotension; pulseless ventricular tachycardiaNon-fatal
2002147Decrease in eco2; hypertension; loss of evoked potentials; focal neurology after operationNon-fatal; paraplegia
2005:219 two casesAir bubbles at operative site; loss of evoked potentials; cardiovascular collapseOne fatal; one non-fatal
2007123Increase in HR; decrease in eco2; unrecordable BPFatal
Cranial and spinal199061Decrease in Pao2 and increase in Pao2; decrease in eco2Non-fatal
Nephrolithotripsy200244Decrease in eco2; hypotension; bradycardia; desaturationNon-fatal; blindness and neurologic deficit after surgery
Surgical regionYear of publication (single cases unless otherwise stated)Clinical featuresOutcome
Cranial1969170HypotensionFatal
1974:124 review of 107 patients; two VGE episodesHypertension; murmur; arrhythmiasFrequency of embolism 1.7%
1993112AsystoleNon-fatal
1994137Tension pneumocephalus; increase in eco2/Pao2 gradientNon-fatal
1995:90 two episodes in one patientAsystole; bradycardia; hypotensionNon-fatal
200046Decrease in eco2; hypotension; bradycardia; desaturation; froth aspirated from central venous catheterNon-fatal
2001195Decrease in eco2; hypotension; increase in CVP; air aspirated from central venous catheterNon-fatal
Spinal19785Detected with Doppler monitoring; air aspirated from right atrial catheterNon-fatal
198851Hypotension, bradycardia; decrease in eco2; increase in nitrogen on mass spectrometryNon-fatal
198999Cardiovascular instabilityFatal
1990:122 two casesAir bubbles at operative site; cardiac arrestFatal
1991:6 three casesHypotension; bradycardia; Millwheel murmur; ECG changes; decrease in eco2; asystole; air aspirated from central venous catheter (one case)One non-fatal; two fatal
1992:76 two casesHypotension; arrhythmia; air bubbles at operative site; air aspirated from central venous catheter (one case)One fatal; one non-fatal
1992:38 three casesDecrease in eco2; tachycardia; ECG changes; bronchospasm; millwheel murmurNon-fatal
1997:185 two casesLoss of SSEP; decrease in eco2; asystole; air palpated in heart via thoracotomy (one case)Both fatal
199739Decrease in eco2; hypotension; desaturation; ST segment elevationNon-fatal
1999113Decrease in eco2; hypotension; bradycardia; desaturationFatal
2000:135 four patients (part of larger blood transfusion study)Non-fatal
200122Decrease in eco2; hypotension; pulseless ventricular tachycardiaNon-fatal
2002147Decrease in eco2; hypertension; loss of evoked potentials; focal neurology after operationNon-fatal; paraplegia
2005:219 two casesAir bubbles at operative site; loss of evoked potentials; cardiovascular collapseOne fatal; one non-fatal
2007123Increase in HR; decrease in eco2; unrecordable BPFatal
Cranial and spinal199061Decrease in Pao2 and increase in Pao2; decrease in eco2Non-fatal
Nephrolithotripsy200244Decrease in eco2; hypotension; bradycardia; desaturationNon-fatal; blindness and neurologic deficit after surgery
Table 2

VGE in the prone position

Surgical regionYear of publication (single cases unless otherwise stated)Clinical featuresOutcome
Cranial1969170HypotensionFatal
1974:124 review of 107 patients; two VGE episodesHypertension; murmur; arrhythmiasFrequency of embolism 1.7%
1993112AsystoleNon-fatal
1994137Tension pneumocephalus; increase in eco2/Pao2 gradientNon-fatal
1995:90 two episodes in one patientAsystole; bradycardia; hypotensionNon-fatal
200046Decrease in eco2; hypotension; bradycardia; desaturation; froth aspirated from central venous catheterNon-fatal
2001195Decrease in eco2; hypotension; increase in CVP; air aspirated from central venous catheterNon-fatal
Spinal19785Detected with Doppler monitoring; air aspirated from right atrial catheterNon-fatal
198851Hypotension, bradycardia; decrease in eco2; increase in nitrogen on mass spectrometryNon-fatal
198999Cardiovascular instabilityFatal
1990:122 two casesAir bubbles at operative site; cardiac arrestFatal
1991:6 three casesHypotension; bradycardia; Millwheel murmur; ECG changes; decrease in eco2; asystole; air aspirated from central venous catheter (one case)One non-fatal; two fatal
1992:76 two casesHypotension; arrhythmia; air bubbles at operative site; air aspirated from central venous catheter (one case)One fatal; one non-fatal
1992:38 three casesDecrease in eco2; tachycardia; ECG changes; bronchospasm; millwheel murmurNon-fatal
1997:185 two casesLoss of SSEP; decrease in eco2; asystole; air palpated in heart via thoracotomy (one case)Both fatal
199739Decrease in eco2; hypotension; desaturation; ST segment elevationNon-fatal
1999113Decrease in eco2; hypotension; bradycardia; desaturationFatal
2000:135 four patients (part of larger blood transfusion study)Non-fatal
200122Decrease in eco2; hypotension; pulseless ventricular tachycardiaNon-fatal
2002147Decrease in eco2; hypertension; loss of evoked potentials; focal neurology after operationNon-fatal; paraplegia
2005:219 two casesAir bubbles at operative site; loss of evoked potentials; cardiovascular collapseOne fatal; one non-fatal
2007123Increase in HR; decrease in eco2; unrecordable BPFatal
Cranial and spinal199061Decrease in Pao2 and increase in Pao2; decrease in eco2Non-fatal
Nephrolithotripsy200244Decrease in eco2; hypotension; bradycardia; desaturationNon-fatal; blindness and neurologic deficit after surgery
Surgical regionYear of publication (single cases unless otherwise stated)Clinical featuresOutcome
Cranial1969170HypotensionFatal
1974:124 review of 107 patients; two VGE episodesHypertension; murmur; arrhythmiasFrequency of embolism 1.7%
1993112AsystoleNon-fatal
1994137Tension pneumocephalus; increase in eco2/Pao2 gradientNon-fatal
1995:90 two episodes in one patientAsystole; bradycardia; hypotensionNon-fatal
200046Decrease in eco2; hypotension; bradycardia; desaturation; froth aspirated from central venous catheterNon-fatal
2001195Decrease in eco2; hypotension; increase in CVP; air aspirated from central venous catheterNon-fatal
Spinal19785Detected with Doppler monitoring; air aspirated from right atrial catheterNon-fatal
198851Hypotension, bradycardia; decrease in eco2; increase in nitrogen on mass spectrometryNon-fatal
198999Cardiovascular instabilityFatal
1990:122 two casesAir bubbles at operative site; cardiac arrestFatal
1991:6 three casesHypotension; bradycardia; Millwheel murmur; ECG changes; decrease in eco2; asystole; air aspirated from central venous catheter (one case)One non-fatal; two fatal
1992:76 two casesHypotension; arrhythmia; air bubbles at operative site; air aspirated from central venous catheter (one case)One fatal; one non-fatal
1992:38 three casesDecrease in eco2; tachycardia; ECG changes; bronchospasm; millwheel murmurNon-fatal
1997:185 two casesLoss of SSEP; decrease in eco2; asystole; air palpated in heart via thoracotomy (one case)Both fatal
199739Decrease in eco2; hypotension; desaturation; ST segment elevationNon-fatal
1999113Decrease in eco2; hypotension; bradycardia; desaturationFatal
2000:135 four patients (part of larger blood transfusion study)Non-fatal
200122Decrease in eco2; hypotension; pulseless ventricular tachycardiaNon-fatal
2002147Decrease in eco2; hypertension; loss of evoked potentials; focal neurology after operationNon-fatal; paraplegia
2005:219 two casesAir bubbles at operative site; loss of evoked potentials; cardiovascular collapseOne fatal; one non-fatal
2007123Increase in HR; decrease in eco2; unrecordable BPFatal
Cranial and spinal199061Decrease in Pao2 and increase in Pao2; decrease in eco2Non-fatal
Nephrolithotripsy200244Decrease in eco2; hypotension; bradycardia; desaturationNon-fatal; blindness and neurologic deficit after surgery
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