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Crit Care Nurse 2003 Oct; 23(5): 12
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Letters to the Editor

Left ventricular diastolic pressure and DDD pacing

In the article, "Hypertrophic Obstructive Cardiomyopathy and Septal Ablation" (June 2003:47–50), there are some conflicting statements about left ventricular diastolic pressure. At the bottom of page 47, column 3, it states there is increased left ventricular diastolic pressure. On page 48, first column at the top, it states the opposite.

Then on page 49, under the section titled "Pacing," the author states that with DDD pacing the first letter indicates the chamber paced and the second letter is the chamber sensed. This is actually reversed.

Rita King, RN, NP
 Los Angeles, Calif

 

The author responds

Regarding left ventricular diastolic pressure, the first reference addresses left ventricular pressure (on page 47) and the next reference addresses left ventricular volume, not pressure.

Regarding pacing, according to Braunwald et al,1,2 the first chamber is the chamber paced and the second chamber is the chamber sensed. If any different data are available on this subject, I would like to know so that I can update my information.

References

  1. Braunwald E, Zipes D, Libby P. Heart Disease: A Textbook of Cardiovascular Medicine. 6th ed. Philadelphia, Pa: WB Saunders Co; 2001:1760–1774.
  2. Braunwald E, Seidman CE, Sigwart U. Contemporary evaluation and management of hypertrophic cardiomyopathy. Circulation. 2002;106:2419–2421.[Free Full Text]
Susan Steinbis, RN, MSN, CCRN, ACNP-C
 Atlanta, Ga





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