Publications by authors named "Ares K Menon"

Background: The number of single ventricle patients undergoing Fontan palliation and surviving to adulthood worldwide has steadily increased in recent years. Nevertheless, the Fontan circulation is destined to fail. Ultimately, heart transplantation (HTx) remains the definitive treatment option.

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Failing Fontan patients present a unique challenge for mechanical circulatory support. We report on a 17-year-old patient with Fontan failure and preserved ventricular function who underwent mechanical cavopulmonary support using a novel cannulation technique.

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Objectives: Publications on the paediatric Berlin Heart EXCOR ventricular assist device have revealed that low body weight <10 kg is a significant risk factor for mortality with children weighing <5 kg being at the highest risk. However, these studies are limited to implantation periods prior to 2011. Since then, progress has been made in the optimization of patient selection and management.

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Noninvasive measurements of blood pressure (BP) and cardiac output (CO) are crucial in the follow-up of continuous-flow left ventricular assist device (CF-LVAD) patients. For our pilot study, we sought to compare BP measurements between a tonometry blood pressure pulse analyzer (BPPA) (DMP-Life, DAEYOMEDI Co., Ltd.

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Aims: The Berlin Heart EXCOR Adult biventricular assist device (BiVAD) is an approved mechanical circulatory support for patients with end-stage biventricular heart failure. In this prospective post-market clinical follow-up study, we present the first clinical experience of the new EXCOR Adult pump with bileaflet (BL) valves in Europe.

Methods And Results: After CE-mark approval in August 2014, a total of 12 patients were enrolled with a mean age of 44 years ± 11 (range 21-58 years).

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Objectives: The Berlin Heart EXCOR ® (EXCOR) paediatric ventricular assist device is used worldwide for mechanical support of infants and small children with end-stage heart failure. A clinically important gap between the smallest EXCOR blood pump (10 ml) and the next larger size (25 ml) limited the choice of pump size in patients with a body surface area (BSA) between 0.33 and 0.

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Background: The use of left ventricular assist devices (LVADs) has gained significant importance for treatment of end-stage heart failure. Fast-track procedures are well established in cardiac surgery, whereas knowledge of their benefits after LVAD implantation is sparse. We hypothesized that ultra-fast-track anesthesia (UFTA) with in-theater extubation or at a maximum of 4 h.

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Background Left ventricular assist devices (LVADs) are nowadays a widespread option for the effective treatment of heart failure. We hypothesized that the European System for Cardiac Operative Risk Evaluation II (EuroSCORE II) might be a superior tool in clinical decision making compared with other established score systems. Methods In this retrospective, single-center analysis, between 2008 and 2014, 40 consecutive patients were followed for up to 36 months after LVAD (Thoratec HeartMate II) implantation.

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Objective: Despite good results following implantation of left ventricular assist devices (LVADs), infections of the driveline and device pocket remain a major problem for patients on long-term support. We present the data from heart failure patients treated with a Thoratec HeartMate-II LVAD (Thoratec Corporation, Pleasanton, California, United States).

Methods: From January 2008 to April 2011, in our institution, 40 heart failure patients (NYHA IV) were supported with a HeartMate-II LVAD.

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Objectives: Using an ultrasonic debridement system (low frequency, 25 kHz), we aimed to completely remove bacterial biofilms and preserve vital sternal tissue and to compare this procedure with conventional surgical therapy.

Methods: In this retrospective study, we evaluated 37 consecutive patients (25 males) between April 2011 and June 2013 in whom sternocutaneous fistula (SCF) was treated with the ultrasound-assisted wound (UAW) system (Group A, n = 18) or with conventional surgical therapy (Group B, n = 19). Treatment in Group A consisted of a complete dissection of the SCF followed by a multistep UAW debridement session after an interval of 3 days.

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Background: The Masimo Pronto-7® calculates hemoglobin (Hb) values using the pulsoximetry technique and a variety of mathematical algorithms analyzing the pulse waveform. Although this system has demonstrated a high level of accuracy in average patients, the performance might be altered in special patient populations. Regarding patients with left ventricular cardiac failure, a rotary blood pump generates a constant, continuous, non-pulsatile flow to improve effective cardiac output.

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Objective: Case report of a 35-year-old gravida 3, para 2, at 40 + 6 weeks with massive respiratory dysfunction with need of oxygenation, requiring cesarean section.

Case Report: Postpartum investigations revealed pathological cardiomegaly with left ventricular failure (NYHAIV). Cardiac biopsy diagnosed postpartum dilatative cardiomyopathy.

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Background: The main objective of this study will be to determine the effects of a new advanced sternum external fixation (Stern-E-Fix) corset on prevention of sternal instability and mediastinitis in high-risk patients.

Methods: This prospective, randomized study (January 2009 - June 2011) comprised 750 male patients undergoing standard median sternotomy for cardiac procedures (78% CABG). Patients were divided in two randomized groups (A, n = 380: received a Stern-E-Fix corset postoperatively for 6 weeks and B, n = 370: control group received a standard elastic thorax bandage).

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Objectives: Bleeding and thrombo-embolism are two of the most threatening adverse events associated with the use of continuous flow left ventricular assist devices (LVADs) in the treatment of severe heart failure. We analysed our LVAD patients treated with the HeartMate II (HM II) device by following a low anticoagulation regimen.

Methods: Between 2008 and February 2011, we implanted 40 HM II LVADs in our institution.

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[Current success and risks of mechanichal circulatory support].

Anasthesiol Intensivmed Notfallmed Schmerzther

June 2011

The growing number of patients suffering from severe congestive heart failure (HF) worldwide still means a challenge for the therapeutic options, mainly in the older population. According to the rapid development in the possibilities for mechanical circulatory support (MCS), the increasing use of left ventricular assist devices (LVADs) as bridge to transplantation (BTT) or destination therapy (DT) reflects a change in the up-to-date therapy of HF. This article gives a broad overview concerning indications, patient selection, choice of the device and mainly a study update.

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Background: Minimally invasive direct coronary artery bypass is an established clinical procedure for revascularization of the left anterior descending coronary artery. Mechanical stabilization and temporary occlusion is currently used to perform the anastomosis of the internal thoracic artery to the left anterior descending coronary artery. However, critical reduction of cardiac function can occur as a result of temporary ischemia.

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