Publications by authors named "Sergey Preisman"

Article Synopsis
  • LVADs significantly improve treatment for advanced heart failure but can lead to complications like bleeding and infection, as well as other less common issues.
  • The case series highlights four unique complications in LVAD patients, including severe aortic regurgitation, pump failure from cable damage, massive uterine bleeding, and device display failure.
  • It's crucial for healthcare providers to recognize these varied complications and understand how to manage them effectively.
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Article Synopsis
  • LVAD implantation is a common procedure for patients with severe heart failure, and proper fluid management post-surgery is essential for recovery.
  • A study on 20 patients using passive leg raising (PLR) showed that this method effectively predicts which patients will benefit from additional fluid by temporarily increasing cardiac preload.
  • Results indicated that 55% of patients were responsive to PLR, leading to significant increases in LVAD flow, central venous pressure, mean arterial pressure, and end-tidal carbon dioxide, highlighting PLR as a simple, noninvasive assessment tool for fluid responsiveness in these patients.
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Objective: Normative values of left ventricular (LV) end-diastolic area and diameter (EDA and EDD) for intraoperative transoesophageal echocardiography (TEE) have not been established. We aimed to define the ranges of LV EDA and EDD for intraoperative TEE examinations in patients undergoing coronary artery bypass graft (CABG) surgery.

Methods: A MEDLINE search for studies reporting LV EDA and EDD in CABG patients was performed.

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We present a case of an 83-year-old female who suffered from annular rupture with contained hematoma immediately after trans-apical implantation of balloon-expandable Sapien valve. The patient developed acute cardiogenic shock which resulted from an extrinsic compression of the left main coronary artery. We report the successful management of this complication.

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Background: Patients with Marfan syndrome are referred for cardiac surgery due to root aneurysm with or without aortic valve regurgitation. Because these patients are young and frequently present with normal-appearing aortic cusps, valve sparing is often recommended. However, due to the genetic nature of the disease, the durability of such surgery remains uncertain.

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Objective: Quality improvement is an important pursuit for critical care teams.

Design: The authors performed an observational cohort study with historic control.

Setting: Eight-bed cardiac surgery ICU in a tertiary university hospital.

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Background: Anticoagulation with heparin is recommended in patients with an intra-aortic balloon pump (IABP) to prevent thrombosis and embolization. However, anticoagulation increases the risk of bleeding, particularly in the early postoperative period after cardiac surgery. We investigated the safety of heparin-free management after IABP insertion in patients who underwent cardiac surgery.

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Introduction: Chronic thromboembolic pulmonary hypertension, a rare complication of pulmonary embolism is amenable to thrombendarterectomy (TEA) and when successful, improves exercise capacity and normalizes resting pulmonary arterial pressure.

Goal: To test if exercise capacity and exercise gas exchange are also normalized after successful TEA.

Methods: Over a period of 4 years, 5 patients underwent TEA at Sheba Medical Center.

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Purpose: To evaluate the value of blood lactate value in predicting postoperative mortality (primary outcome), duration of ventilation, and length of stay in an intensive care unit (ICU) and hospital (secondary outcomes).

Methods: We performed a prospective observation study on 1,820 consecutive patients undergoing open heart surgery in a tertiary university medical center. Blood lactate levels were obtained from patients on admission to the cardiac surgical ICU and measured serially.

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Background: The involvement of mitochondria in pathological states, such as neurodegenerative diseases, sepsis, stroke, and cancer, are well documented. Monitoring of nicotinamide adenine dinucleotide (NADH) fluorescence in vivo as an intracellular oxygen indicator was established in 1950 to 1970 by Britton Chance and collaborators. We use a multiparametric monitoring system enabling assessment of tissue vitality.

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Objective: Anti-platelet therapy is associated with increased perioperative bleeding. Although current guidelines call for its caessation 5-10 days prior to cardiac surgery, this could constitute an increased risk of preoperative myocardial infarction. The optimal safe period from discontinuation of anti-platelet therapy to surgery is as yet unknown for the individual patient.

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Giant left atrium (GLA) is seen in a variety of cardiac conditions. The GLA is diagnosed by combining the patient's history, physical examination, and imaging techniques, along with a computed tomographic chest scan, echocardiogram, and barium swallow test. We recently operated on a severely symptomatic 71-year-old woman with GLA (135 mm x 192 mm).

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Objectives: We sought to compare early and late clinical and echocardiographic outcomes of patients undergoing minimally invasive mitral valve repair by means of the port-access and median sternotomy approaches.

Methods: Between 2000 and 2009, 503 patients had mitral valve repair, of whom 143 underwent surgical intervention for isolated posterior leaflet pathology: 61 through port access and 82 through median sternotomy. The port-access group had better preoperative New York Heart Association functional class (P = .

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Objectives: Intraoperative management directed to early extubation of children undergoing cardiac surgery has been suggested as a viable alternative to prolonged postoperative mechanical ventilation. The authors evaluated the safety and efficacy of this approach in a randomized prospective trial.

Design: A prospective randomized observational study.

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Objective: "Fast-track" pathways have been successfully used in low-risk, relatively young patients after all types of surgical procedures including cardiac surgery. An increase in the number of referrals of older patients for cardiac surgery prompted the present study on the use of a "fast-track" pathway in septuagenarians and octogenarians. Risk factors for the unsuccessful application of the "fast-track" pathway in these elderly patients were determined.

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Background: Median sternotomy has been the conventional approach for correction of congenital cardiac defects despite poor cosmetic results at times. Right anterior minithoracotomy was, therefore, assessed as an alternative procedure with a better cosmetic outcome.

Methods: From October 2002 through February 2007, 75 patients underwent correction of congenital cardiac malformations with the use of cardiopulmonary bypass through right anterior minithoracotomy involving a short incision through the fifth intercostal space and the minimally invasive cannulation.

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Background: Patients in cardiogenic shock (CS) or with terminal heart failure (THF) are at imminent risk of death while waiting for heart transplantation (HTx). Implantation of left or bi-ventricular assist device (LVAD/BiVAD) as a bridge to HTx may save many of these doomed patients' lives.

Patients And Methods: Between March 1994 and December 2006, 29 terminally ill patients (age 2.

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Objective: A less invasive approach to cardiac surgical procedures has become widely accepted. The Port-Access (Heartport Inc, Redwood City, CA) technique for correction of acquired and congenital heart defects in adults produces superior cosmetic results without increasing perioperative morbidity. This study evaluated the feasibility of the Port-Access approach for repairs of various congenital heart defects in children and describes the anesthetic management for this procedure.

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Respiratory-induced changes in arterial blood pressure predict fluid responsiveness. However, the accuracy of these variables is affected by the preset tidal volume and by the early inspiratory increase in arterial blood pressure. We have therefore calculated the slope produced by the minimal systolic blood pressures (plotted against the respective airway pressures) during a ventilatory maneuver consisting of four incremental, successive, pressure-controlled breaths, termed the Respiratory Systolic Variation Test (RSVT).

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Hemodynamic compromise caused by the insertion of the probe for transesophageal echocardiography in a patient with severe stenosis of the main pulmonary artery is reported for the first time. The first symptom of the impending problem was a rapid decrease of end-tidal CO(2).

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