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Table of Contents
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Year : 2017  |  Volume : 20  |  Issue : 1  |  Page : 102-103
An unusual cause of postpartum heart failure


1 Department of Cardiology, Saint Joseph Regional Medical Center, New York Medical College, Paterson, USA
2 Department of Cardiology, Saint Michael's Medical Center, New York Medical College, Newark, NJ, USA

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Date of Web Publication6-Jan-2017
 

   Abstract 

Peripartum cardiomyopathy is a weakness of the heart muscle. It is an idiopathic cardiomyopathy that presents with heart failure secondary to left ventricular systolic dysfunction toward the end of pregnancy or in the months after delivery, in the absence of any other cause of heart failure. It is a rare condition that can carry mild or severe symptoms.

Keywords: Atrioventricular block, diastolic mitral regurgitation, epidural anesthesia

How to cite this article:
Khaddash I, Hawatmeh A, Altheeb Z, Hamdan A, Shamoon F. An unusual cause of postpartum heart failure. Ann Card Anaesth 2017;20:102-3

How to cite this URL:
Khaddash I, Hawatmeh A, Altheeb Z, Hamdan A, Shamoon F. An unusual cause of postpartum heart failure. Ann Card Anaesth [serial online] 2017 [cited 2019 Nov 22];20:102-3. Available from: http://www.annals.in/text.asp?2017/20/1/102/197846


We report a case of a 35-year-old female who presented for induction of labor at 37 weeks of pregnancy secondary to cholestasis of pregnancy. She received epidural analgesia with bupivacaine and was induced with oxytocin. Immediately, postdelivery she was doing well. However, 1 h later, she developed shortness of breath and was found to have pulmonary edema. The patient was given intravenous furosemide and her symptoms improved. Chest X-ray showed pulmonary vascular congestion. A 12 leads electrocardiogram showed Mobitz Type II heart block and did not demonstrate any ischemic changes [Figure 1]a. Troponins were negative, and brain natriuretic peptide was elevated at 353 pg/mL. Computed tomography angiogram of the chest was done and showed bilateral infiltrates that were consistent with pulmonary congestion with no evidence of pulmonary embolism. Transthoracic two-dimensional echocardiogram demonstrated normal ejection fraction with no wall motion abnormalities, and normal diastolic function. Closer examination revealed retrograde flow into the left atrium after the blocked P-wave, which indicates diastolic mitral regurgitation (MR). The regurgitation jet can only be seen during episodes of heart block and was consistent with patient's symptoms [Figure 1]b-d and Supplementary Movies 1-3]. The heart block was attributed to epidural analgesia with bupivacaine, and the heart failure was attributed to increased volume status during pregnancy along with the severe diastolic MR, in light of the normal systolic and diastolic function. The patient did well with diuresis and conservative management with complete resolution of her heart block and diastolic MR.
Figure 1: (a) 12 lead electrocardiogram and telemetry strip showing Mobitz II second - degree atrioventricular block. (b and c) Transthoracic echocardiogram apical four chambers view (b) and two chamber view (c) showing color flow Doppler of diastolic mitral regurgitation. (d) Transthoracic echocardiogram parasternal long axis view showing color flow Doppler of diastolic mitral regurgitation

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Diastolic MR is caused by an elevated left ventricular end-diastolic pressure, leading to an inverse pressure gradient across the mitral valve in diastole and hence to a diastolic MR. This condition is frequently seen with atrioventricular (AV) conduction abnormalities of any degree, hypertrophic cardiomyopathy, advanced left ventricular systolic dysfunction, during atrial flutter, and severe aortic regurgitation. [1],[2],[3]

In patients with AV block, ventricular systole may not occur at the end of atrial systole. The increase in left ventricular diastolic pressure following atrial systole may result in transmitral pressure gradient inversion during atrial relaxation, and mid or late diastolic MR may develop. [3],[4]

The cardiovascular changes associated with normal pregnancy include increased blood volume which can cause volume overload in postpartum females and symptoms of heart failure. In addition, epidural anesthesia use during delivery can induce heart block. [5] In our patient in light of the normal systolic and diastolic function, her symptoms were attributed to diastolic MR secondary to heart block from epidural anesthesia in addition to increased blood volume due to pregnancy.

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   References Top

1.
Agmon Y, Freeman WK, Oh JK, Seward JB. Diastolic mitral regurgitation. Circulation 1999;99:e13.  Back to cited text no. 1
    
2.
Usuku H, Misumi I, Kusuhara K, Rokutanda T, Akahoshi R, Matsumoto M, et al. Mid-diastolic mitral regurgitation in a patient with diastolic heart failure. J Echocardiogr 2013;11:161-3.  Back to cited text no. 2
    
3.
Bouzas-Mosquera A, García-Campos A, Alvarez-García N. Diastolic atrioventricular regurgitation. Arch Cardiovasc Dis 2009;102:797-8.  Back to cited text no. 3
    
4.
Aksu U, Topcu S, Gulcu O, Kalkan K, Tanboga IH. Diastolic mitral and tricuspid regurgitation in a patient with 2:1 AV block. Int J Cardiol 2015;195:111-2.  Back to cited text no. 4
    
5.
McHugh SM, Ibinson JW. Development of third-degree heart block due to thoracic epidural anaesthesia. Injury Extra 2012;43:18-20.  Back to cited text no. 5
    

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Correspondence Address:
Amer Hawatmeh
111 Central Avenue, Newark, New Jersey 07102
USA
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9784.197846

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