Browsing by Author "Krishnamoorthy, KM"

Now showing 1 - 20 of 65
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    100% cardiothoracic ratio
    (TEXAS HEART INSTITUTE JOURNAL, 2001) Krishnamoorthy, KM
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    Absent pulmonary valve and origin of left pulmonary artery from ascending aorta
    (INTERNATIONAL JOURNAL OF CARDIOLOGY, 2004) Krishnamoorthy, KM; Tharakan, JA; Padmakumar, R
    A rare combination of tetralogy of Fallot, absent pulmonary valve and absent left pulmonary artery is described. The clinical and angiographic profile and the impact on management are discussed. The embryology is outlined. (C) 2004 Elsevier Ireland Ltd. All rights reserved.
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    Acute phase reactants predict mitral regurgitation following mitral valvuloplasty
    (INTERNATIONAL JOURNAL OF CARDIOLOGY, 2006) Harikrishnan, S; Rajeev, E; Tharakan, JA; Thomas, T; Ajith, K; Sivasankaran, S; Krishnamoorthy, KM; Santhosh, D; Krishnakumar, N; Namboodiri, KKN
    This report evaluated whether acute phase reactants can predict the development of mitral regurgitation following percutaneous mitral valvotomy. 58 patients who developed significant mitral regurgitation following valvotomy were retrospectively compared with 58 age, sex and procedure technique matched control patients, who had valvotomy without mitral regurgitation. ESR and total leucocyte count were significantly higher in the group who developed mitral regurgitation, than in the control group. Higher ESR and total leucocyte count may be indicative of ongoing low grade sub-clinical inflammatory process, which makes the valve tissue friable which can give way during balloon stretch and lead onto mitral regurgitation. (c) 2005 Published by Elsevier Ireland Ltd.
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    Aneurysm of the left atrial appendage
    (CARDIOLOGY, 2002) Krishnamoorthy, KM
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    Anomalous venous drainage: a rare case of cyanosis
    (EUROPEAN HEART JOURNAL-CARDIOVASCULAR IMAGING, 2016) Sasikumar, D; Krishnamoorthy, KM; Sivasubramanian, S; Gopalakrishnan, A; Behera, D
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    ASD Device Embolization: Caught in the Act
    (ECHOCARDIOGRAPHY-A JOURNAL OF CARDIOVASCULAR ULTRASOUND AND ALLIED TECHNIQUES, 2013) Kumar, SM; Subramanian, V; Krishnamoorthy, KM; Sivasankaran, S
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    Balloon Atrial Septostomy in Congenital Heart Disease
    (CIRCULATION JOURNAL, 2016) Gopalakrishnan, A; Sasidharan, B; Krishnamoorthy, KM
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    Balloon mitral valvulotomy in children aged <= 12 years
    (JOURNAL OF HEART VALVE DISEASE, 2003)
    Background and aim of the study: Balloon mitral valvulotomy (BMV) was studied in children aged less than or equal to12 years to study its efficacy, to assess the effects of age and body surface area on outcome, and to determine whether the definition of mitral stenosis and recommendations for balloon size used in adults are applicable to very young patients. At present, data on BMV or guidelines for balloon size in small children are not available.Methods: Clinical, echocardiographic and hemodynamic data were obtained from 13 patients before and after BMV. At follow up, correlation coefficients were identified for clinical, echocardiographic or procedural variables with increase in the degree of mitral regurgitation (MR), age and body surface area.Results: BMV was successful in 12 patients (93%), with increased valve area and cardiac index and decreased left atrial and pulmonary artery pressure gradients. Moderate MR developed in two patients (15%), but did not correlate with any variable. Symptom improvement was seen at follow up. Seven patients (54%) experienced adverse events: restenosis occurred in five cases (38%), and symptom recurrence and valve replacement for endocarditis occurred in one patient (8%). Kaplan-Meier analysis showed that by 20 months after BMV, 60% of patients had experienced an event. The percentage fall in pulmonary artery pressure correlated with body surface area, but not age.Conclusion: BMV is effective in very small children, but a high incidence of moderate MR occurs, mainly because the choice of balloon size is made using an adult-style, height-based nomogram and a stepwise increase in balloon size during BMV. Correct nomograms to define mitral stenosis, restenosis and balloon size must be developed for small children.
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    Balloon sizing of atrial septal defects
    (TEXAS HEART INSTITUTE JOURNAL, 2002) Krishnamoorthy, KM; Tharakan, JA; Ajithkumar, AK; Padmakumar, R; Harikrishnan, S
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    Circular shunt in bidirectional cavopulmonary anastomosis
    (JOURNAL OF THORACIC AND CARDIOVASCULAR SURGERY, 2016) Krishnamoorthy, KM; Sivasankaran, SS
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    Comments on "Atrial septal aneurysm and spontaneous echo contrast: An association with higher embolic risk?"
    (EUROPEAN JOURNAL OF ECHOCARDIOGRAPHY, 2006) Krishnamoorthy, KM; Namboodiri, N
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    Comparison of percutaneous transmitral commissurotomy with Inoue balloon technique and metallic commissurotomy: Immediate and short-term follow-up results of a randomized study
    (AMERICAN HEART JOURNAL, 2002)
    Background The Inoue balloon technique for mitral commissurotomy is well established and carried out worldwide. Metallic commissurotomy is reported to be a cheaper and effective alternative to balloon mitral commissurotomy.Methods One hundred patients were randomized into 2 groups to undergo percutaneous transmitral commissurotomy (PTMC) by means of the Inoue balloon technique (IBMC, n = 49) or metallic commissurotomy (PMMC, n = 51). Patients were crossed over to the other technique when the initial technique was a failure. Success of valvotomy, procedure-related complications, and follow-up events of the 2 techniques were compared.Results Basal echocardiographic and hemodynamic data were similar in both groups. Procedural success was similar in both groups: 45 of 49 procedures (91.8%) in the IBMC group, compared with 46 of 51 procedures (90.18%) in the PMMC group (P = 1.0). Crossover was also comparable, with I occurring in the IBMC group, compared with 3 in the PMMC group. Complications such as cardiac tamponade and mitral regurgitation (requiring or not requiring mitral valve replacement) were similar in both groups, with 3 complications in the IBMC group, compared with 4 complications in the PMMC group (P =.29). After a follow-up period of approximately 4 months, both groups had similar event rates and comparable hemodynamic parameters (P = not significant).Conclusions Both IBMC and PMMC are successful means of providing relief from severe mitral stenosis with a gain in valve area and reduction in transmitral gradient. Both techniques have similar procedural success, complication rates, and follow-up events.
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    Congenital bilateral aplasia of external iliac arteries
    (INTERNATIONAL JOURNAL OF CARDIOLOGY, 2001) Harikrishnan, S; Krishnamoorthy, KM; Tharakan, JM
    A child with bilateral aplasia of external iliac arteries with normal internal iliac arteries, demonstrated by vascular Doppler and digital subtraction angiography is presented. Popliteal artery is reformed by collaterals. This anomaly is extremely rare. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.
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    Double right coronary artery with anomalous origin of septal arteries from the right coronary sinus
    (INTERNATIONAL JOURNAL OF CARDIOLOGY, 2005) Nair, K; Krishnamoorthy, KM; Tharakan, JA
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    Dye in the limbus fossa ovalis
    (INTERNATIONAL JOURNAL OF CARDIOLOGY, 2001) Krishnamoorthy, KM
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    Effect of age on atrial contribution to ventricular filling after balloon mitral valvuloplasty in mitral stenosis
    (INTERNATIONAL JOURNAL OF CARDIOLOGY, 2004)
    Objective: Ventricular filling takes place during the conduit and pump functions of the atrium. While studying whether relief of mitral valve obstruction improves atrial filling, the effect of age on atrial contribution to ventricular filling was studied before and after balloon mitral valvuloplasty (BMV) and on follow-up at 1 year. Methods: Patients with mitral stenosis (MS) and sinus rhythm (n = 59) were divided into group I (< 18 years, n = 13), group 11 (< 30 years, n = 29) and group III (>30 years, n = 17). Two-dimensional mitral valve area (MVA in cm(2)), transmitral mean gradient (MG in mm Hg), velocity time integral (VTI in cm) of mitral valve flow, VTI contributed by atrial systole (ANTI), difference between total VTI and ANTI (E-VTI), percentage contribution of ANTI to the total VTI (A-%) and difference between A-% before and after BMV (delta-A-%) were noted. Follow-up data was obtained at I year. The change in A-% at follow-up (A-%-FU) was calculated as the difference between A-% before BMV and A-% at follow-up. Results: There was a similar increase in MVA with a reduction in MG among the three groups. Among the three groups, total VTI and E-VTI before and after BMV were similar. Before BMV, in all the groups, ANTI and A-% were similar. After BMV, there was increase in ANTI and A-% in all the groups with a trend to be more in younger patients. ANTI was significantly higher in group I only. But E-VTI had decreased significantly in all groups and tended to be less in younger patients. In younger patients, delta-A-% after BMV was significantly higher (13.2+/-7.6, 7.9+/-5.1 and 6.5+/-4.5, respectively, in groups 1, 11 and 111; P < 0.01). Correlation coefficient of age against delta-A-% was - 0.55 (p < 0.01). Correlation coefficients of delta-A-% against post-BMV-MVA and MG were not good. At follow-up of 11.3+/-1.2 months, changes achieved in total VTI, ANTI, E-VTI and A-% were maintained. Total VTI, ANTI, E-VTI and A-% were similar at the time of follow-up on comparing the three groups. But younger patients had significantly higher A-%-FU (12.1+/-5.8, 9.4+/-4.6 and 7.3+/-3.1, respectively, in groups 1, 11 and III; p < 0.01). Conclusions: Prior to BMV, there is an age related reduction in atrial contribution to ventricular filling that improves with relief of MS. Advancing age reduces the immediate and late recovery of atrial contribution after BMV. This may be due to increasing left atrial fibrosis with age that prevents an improvement in atrial pump function. The differential improvement in atrial function in younger patients warrants earlier intervention in MS to achieve better recovery of atrial function. (C) 2004 Elsevier Ireland Ltd. All rights reserved.
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    Effect of atrial septal aneurysm on the risk of cerebrovascular events
    (INTERNATIONAL JOURNAL OF CARDIOLOGY, 2006) Krishnamoorthy, KM
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    Haemolytic anaemia following mitral valve repair
    (INTERNATIONAL JOURNAL OF CARDIOLOGY, 2003) Krishnamoorthy, KM; Rao, S
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    Hemodynamic performance evaluation of TTK Chitra heart valve prosthesis in the aortic position using Doppler echocardiography
    (INTERNATIONAL JOURNAL OF CARDIOLOGY, 2010) Namboodiri, N; Shajeem, O; Tharakan, J; Sankarkumar, R; Titus, T; Ajitkumar, V; Sivasankaran, S; Krishnamoorthy, KM; Harikrishnan, SP