Circulation. 2006;114:257
(Circulation. 2006;114:257.)
© 2006 American Heart Association, Inc.
Issue Highlights
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SURGICAL CORRECTION OF MITRAL REGURGITATION IN THE ELDERLY: OUTCOMES AND RECENT IMPROVEMENTS, by Detaint et al.
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With an aging population and the traditionally high risks for
surgical repair of mitral regurgitation, contemporary surgical
results are of great importance. In this issue of
Circulation,
Detaint et al analyzed the results of mitral valve surgery for
mitral regurgitation in elderly patients

75 years old compared
to patients 6574 and <65 years of age. They found
an incremental comorbidity index in the elderly. Most important,
the long-term observed and expected survival rates were similar
in each group. The multivariable analysis confirmed the ability
of mitral valve surgery to restore life expectancy as well in
the elderly as in younger patients. Current surgical practice
should be able to offer mitral valve operations to these elderly,
higher-risk patients with operative mortality rates around 5%;
a high reliability to repair the mitral valve for degenerative
pathology causing mitral regurgitation and the restoration of
the life expectancy. See p
265.
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CLINICAL RELEVANCE OF C-REACTIVE PROTEIN DURING FOLLOW-UP OF PATIENTS WITH ACUTE CORONARY SYNDROMES IN THE AGGRASTAT-TO-ZOCOR TRIAL, by Morrow et al.
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The role of measuring inflammatory markers in the setting of
acute coronary syndromes is evolving. While high sensitivity
C-reactive protein (hsCRP) is the most widely studied marker,
it is unknown whether the associated risk of elevated levels
can be modified. In this issue of
Circulation, Morrow and colleagues
substantially move the field forward with their analysis of
3813 patients with acute coronary syndromes in the Aggrastat-to-Zocor
trial. In this prospective study, they report the association
of hsCRP levels with long-term risk of death and the effect
of aggressive statin therapy (simvastatin) on these levels.
These important data suggest that monitoring hsCRP levels at
1 and 4 months after acute coronary syndromes can provide useful
prognostic information and that associated risks can be modified
by statin therapy. See p
281.
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GLUTARALDEHYDE-FIXED BIOPROSTHETIC HEART VALVE CONDUITS CALCIFY AND FAIL FROM XENOGRAFT REJECTION, by Manji et al.
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Tissue valves are the most common type of prosthesis implant.
Their popularity stems from ease of implementation, excellent
hemodynamics, and their favorable thrombotic profile obviating
the need for chronic anticoagulation. The durability of tissue
and the mechanism of failure have been a major focus for basic
and clinical investigation. The relative contribution of immunological
rejection, biomechanical stress, and dystrophic calcification
has remained unresolved. The study by Manji et al in this issue
of
Circulation investigates rejection of rat aortic valves and
pig aortic valves placed in the descending aorta of rats, 20
days after implantation. The xenogeneric valves compared to
the syngeneric valves had more inflammation, T-cell/macrophage
infiltration, and higher serum antibody levels. Future biological
valve designs and surface treatments should focus on the ability
to reduce and modify both cellular and humoral rejection as
well as the foreign body reaction to these tissue prostheses.
See p
318.
Visit http://circ.ahajournals.org:
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Clinician Update
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Intravascular Ultrasound in Cardiovascular Medicine. See p
e55.
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Images in Cardiovascular Medicine
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Ventricular Tachycardia: The Spectrum Continues to Broaden:
Report of Naxos Disease. See p
e60.
Masking Inferior Infarction by Anterior Myocardial Injury. See p e62.
Chest Pain and Intimal Flap Detected by Chest Computed Tomography Scans. See p e64.
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Correspondence
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See p
e65.
Related Articles:
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Intravascular Ultrasound in Cardiovascular Medicine
- Stephen J. Nicholls, E. Murat Tuzcu, Ilke Sipahi, Paul Schoenhagen, and Steven E. Nissen
Circulation 2006 114: e55-e59.
[Full Text]
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Ventricular Tachycardia: The Spectrum Continues to Broaden: Report of Naxos Disease
- C.G. Sajeev, Johnson Francis, Vikram Sankar, Babu Vasudev, and K. Venugopal
Circulation 2006 114: e60-e61.
[Full Text]
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Masking Inferior Infarction by Anterior Myocardial Injury
- Changchun Deng and Bodh Das
Circulation 2006 114: e62-e63.
[Full Text]
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Chest Pain and Intimal Flap Detected by Chest Computed Tomography Scans
- Kohtaro Abe, Masahiro Mohri, Noboru Ideno, Masaaki Tsukuda, Mitsuru Noma, Hideki Origuchi, and Hideo Yamamoto
Circulation 2006 114: e64.
[Full Text]
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Letter by Powers et al Regarding Article, "Riboflavin Lowers Homocysteine in Individuals Homozygous for the MTHFR 677C
T Polymorphism"
- Hilary J. Powers, Ian F.W. McDowell, and Stuart J. Moat
Circulation 2006 114: e65.
[Full Text]
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Glutaraldehyde-Fixed Bioprosthetic Heart Valve Conduits Calcify and Fail From Xenograft Rejection
- Rizwan A. Manji, Lin F. Zhu, Nimrit K. Nijjar, David C. Rayner, Greg S. Korbutt, Thomas A. Churchill, Ray V. Rajotte, Arvind Koshal, and David B. Ross
Circulation 2006 114: 318-327.
[Abstract]
[Full Text]
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Surgical Correction of Mitral Regurgitation in the Elderly: Outcomes and Recent Improvements
- Delphine Detaint, Thoralf M. Sundt, Vuyisile T. Nkomo, Christopher G. Scott, A. Jamil Tajik, Hartzell V. Schaff, and Maurice Enriquez-Sarano
Circulation 2006 114: 265-272.
[Abstract]
[Full Text]
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Clinical Relevance of C-Reactive Protein During Follow-Up of Patients With Acute Coronary Syndromes in the Aggrastat-to-Zocor Trial
- David A. Morrow, James A. de Lemos, Marc S. Sabatine, Stephen D. Wiviott, Michael A. Blazing, Amy Shui, Nader Rifai, Robert M. Califf, and Eugene Braunwald
Circulation 2006 114: 281-288.
[Abstract]
[Full Text]
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