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  • Title: Detection of elevated pulmonary capillary wedge pressure in elderly patients with various cardiac disorders by the Valsalva manoeuvre.
    Author: Remmen JJ, Aengevaeren WR, Verheugt FW, Jansen RW.
    Journal: Clin Sci (Lond); 2006 Aug; 111(2):153-62. PubMed ID: 16545074.
    Abstract:
    In the present study, we assessed whether elevated (> or =15 mmHg) PCWP (pulmonary capillary wedge pressure) can be detected using the blood pressure response to the Valsalva manoeuvre in a group of elderly patients with various cardiac disorders, including atrial fibrillation and valvular heart disease, and healthy elderly controls. The Valsalva manoeuvre was performed in 93 patients (71+/-4 years) and 28 healthy controls (70+/-4 years) undergoing right-sided cardiac catheterization. Blood pressure was measured non-invasively with Finapres. PPR (pulse pressure ratio), the ratio of minimum pulse pressure during phase 2 and maximum pulse pressure during phase 1 of the Valsalva manoeuvre, was correlated with PCWP (r=0.63, P<0.001). The area under the receiver operator characteristic curve of PPR with elevated PCWP was 0.85 (P<0.001). For PPR=0.62, sensitivity for elevated PCWP was 80%, specificity was 79%, positive predictive value was 76% and negative predictive value was 83%. Correlation of PPR with PCWP and the ability of PPR to detect elevated PCWP was present in atrial fibrillation, heart failure and valvular heart disease. In conclusion, PPR is a sensitive and specific instrument to diagnose elevated PCWP non-invasively in a large group of elderly patients with various cardiac disorders. This makes the Valsalva manoeuvre a useful non-invasive tool for diagnosing heart failure, applicable in elderly patients with common cardiac disorders, such as atrial fibrillation and valvular heart disease.
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