Exercise stress testing.

Fortuin, Nicholas J.; Weiss, J. L.

doi:10.1161/01.cir.56.5.699

Cited by 170 publications

(44 citation statements)

References 119 publications

(17 reference statements)

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“…If a significant difference was found with the analysis of variance, then further testing using Bonferroni's correction for multiple comparisons was performed. Sensitivity, specificity, positive predictive value, and negative predictive value were calculated in the standard fashion [16] to evaluate (post hoc) the premise that a coronary perfusion pressure (CPP) greater than 20 mmHg, measured at 10 min of CPR, predicts excellent survival. All data are reported as mean  S.E.M.…”

Section: Discussionmentioning

confidence: 99%

Myocardial perfusion pressure: A predictor of 24-hour survival during prolonged cardiac arrest in dogs

Ewy²,

et al. 1988

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Myocardial perfusion pressure, defined as the aortic diastolic pressure minus the right atria1 diastolic pressure, correlates with coronary blood flow during cardiopulmonary resuscitation (CPR) and predicts initial resuscitation success. Whether this hemodynamic parameter can predict 24-h survival is not known. We examined the relationship between myocardial perfusion pressure and 24-h survival in 60 dogs that underwent prolonged (20 min) ventricular fibrillation and CPR. Forty-two (70%) animals were initially resuscitated and 20 (33%) survived for 24 h. Myocardial perfusion pressure was significantly greater when measured at 5, 10, 15 and 20 min of ventricular fibrillation in the resuscitated animals than in the non-resuscitated animals (P < 0.01). Likewise, the myocardial perfusion pressure was also greater in the animals that survived 24 h than in animals that were resuscitated, but died before 24 h (P < 0.02). Myocardial perfusion pressure measured after 10 min of CPR was 11  2 mmHg in animals never resuscitated, 20  3 mmHg in those resuscitated that died before 24 h and 29  2 mmHg in those that survived 24 h (P < 0.05). A myocardial perfusion pressure at 10 min of CPR of 20 mmHg or less is an excellent predictor of poor survival (negative predictive value = 96%). Myocardial perfusion pressure is a useful index of CPR effectiveness and therefore may be a useful guide in helping to optimize resuscitation efforts.

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Section: Discussionmentioning

confidence: 99%

Myocardial perfusion pressure: A predictor of 24-hour survival during prolonged cardiac arrest in dogs

Ewy²,

et al. 1988

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“…Sensitivity indicates the percentage of nonviable segments detected, whereas specificity indicates how often an evaluation of a segment as nonviable was correct. The sensitivity and specificity were calculated from standard formulae (Fortuin & Weiss 1977) and expressed within 95% confidence limits assuming a binomial distribution. (Schamaun 1967) and injection of radioactive microspheres (Zairns et al 1974) require expensive equipment and technical expertise.…”

Section: Resultsmentioning

confidence: 99%

Prediction of Intestinal Recovery after Ischaemic Injury Due to Arterial, Venous and Mixed Arterial and Venous Occlusions

Gorey

1980

J R Soc Med

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Summary: Methods to predict intestinal viability after release of vascular occlusion were evaluated in a rat model of reversible segmental strangulation. Visual criteria of colour, pulsation and peristalsis in the ischaemic intestine were applied both in the immmediate period after restoration of the circulation and at 'second-look' 24 hours later. In addition two simple tests using a Doppler probe and surface fluorescence were evaluated. As a test in identifying nonviable intestine the fluorescent method had an overall sensitivity of 96% with a specificity of 95% for all types of vascular occlusion, which compared favourably with the other methods tested.

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“…It is well known that the presence of ST-segment depression with exercise has reasonable sensitivity and specificity for predicting coronary artery disease (22,23). The interpretation of these changes is not reliable when there is electrocardiographic evidence of left ventricular hypertrophy or in patients taking digitalis (22,23).…”

Section: Discussionmentioning

confidence: 99%

“…The interpretation of these changes is not reliable when there is electrocardiographic evidence of left ventricular hypertrophy or in patients taking digitalis (22,23). During adenosine infusion, however, it has been shown that the majority of patients with reversible MPI scans do not have ST-segment depression.…”

Section: Discussionmentioning

confidence: 99%

High-frequency electrocardiogram analysis in the ability to predict reversible perfusion defects during adenosine myocardial perfusion imaging

Trägårdh

Schlegel

Carlsson

et al. 2007

Journal of Electrocardiology

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Exercise stress testing.

Cited by 170 publications

References 119 publications

Myocardial perfusion pressure: A predictor of 24-hour survival during prolonged cardiac arrest in dogs

Myocardial perfusion pressure: A predictor of 24-hour survival during prolonged cardiac arrest in dogs

Prediction of Intestinal Recovery after Ischaemic Injury Due to Arterial, Venous and Mixed Arterial and Venous Occlusions

High-frequency electrocardiogram analysis in the ability to predict reversible perfusion defects during adenosine myocardial perfusion imaging

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