Valsalva Maneuver

 

                                                                     Antonio Maria Valsalva 

Antonio Maria Valsalva (17 January 1666 – 2 February 1723)

Italian anatomist born in Imola. His research focused on the anatomy of the ears. 

He coined the term Eustachian tube. 

 His name is associated with the Valsalva antrum of the ear  and the Valsalva Maneuver, which is used as a test of circulatory function.

Valsalva Maneuver 

Forced Expiration Against A Closed Glottis 

Valsalva Maneuver 

Phase 0

Arterial Decompression 

Increased Venous Return 

Phase 1 

Decreased Heart Rate, Increased BP 

Phase 2 

Decreased Venous Return, Normalised BP 

Effect Of Valsalva Maneuver On Arrythmias

Valsalva Maneuver = Sinus Node Slowing 

Sinus Tachycardia: Valsalva Maneuver Can Slow Heart Rate 

Snapshot