Publications by authors named "Rajeswaran J"

Objective: The study objective was to assess longitudinal postoperative health-related quality of life among patients with adult congenital heart disease facilitated by a novel electronic medical record-based patient-reported outcomes follow-up platform.

Methods: From January 2022 to October 2023, 559 patients with adult congenital heart disease underwent cardiac surgery; 491 (88%) completed a 23-element health-related quality of life questionnaire covering 3 domains (physical, mental, and social) yielding 911 assessments. Automated questionnaires via electronic medical record were sent at 7 days preoperatively and postoperatively at 1, 3, 6, and 12 months.

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Stroke is a major public health concern and leads to significant disability. Bilateral thalamic infarcts are rare and can result in severe and chronic cognitive and behavioral disturbances-apathy, personality change, executive dysfunctions, and anterograde amnesia. There is a paucity of literature on neuropsychological rehabilitation in patients with bilateral thalamic infarcts.

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Objectives: We assessed the effect of anomalous aortic origin of a coronary artery on the risk of early and late postoperative events after aortic or mitral valve replacement in adults.

Methods: Between 2005 and 2022, 29,579 adults underwent surgical aortic or mitral valve replacement at Cleveland Clinic. Among these, 29 had an unrepaired coronary artery rising anomalously from the aorta that was not intervened upon during valve surgery, 19 (65%) an anomalous circumflex, and 9 (31%) an anomalous right.

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  • This study aimed to investigate mitral calcification in patients with severe aortic stenosis and mitral regurgitation, assessing its impact on heart structure, surgical interventions, and survival rates.
  • Researchers examined 158 patients who underwent various surgical procedures from 1998 to 2010, using CT scans to measure mitral calcium and employing random forest methodology to analyze its relationship with heart function.
  • Findings revealed that larger mitral calcium volumes indicated more severe heart disease and required more complex surgical procedures, but contrary to expectations, it did not correlate with long-term survival outcomes.
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  • Magnetoencephalography (MEG) can help identify regions of seizure activity in patients with drug-resistant epilepsy (DRE) who have normal MRI scans.
  • A study of 73 patients showed that MEG effectively localized seizure sources in 70% of cases, with a moderate agreement in findings when compared to video electroencephalography (VEEG).
  • The results suggest that MEG is a valuable tool for presurgical evaluations in DRE patients, especially when MRI results are inconclusive.
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Objective: Valve-sparing aortic root replacement for proximal aortic dilation with aortic regurgitation is associated with excellent outcomes. Modified aortic reimplantation entails reducing the anulus size to the expected size for sex and body surface area and creating neosinuses to preserve the aortic valve. We present our mid- and late-term outcomes with the modified technique, including a single-surgeon's experience over the past 2 decades.

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Background: There is significant variability in postoperative neurological injury rates in patients with congenital heart disease, with early injuries impacting long-term neurodevelopmental outcomes; therefore, there is an urgent need for identifying effective strategies to mitigate such injuries.

Objectives: This study aims to assess the association between nadir intraoperative temperature (NIT) and early neurological outcomes in neonates undergoing congenital heart surgery.

Methods: Analyzing data from 24,345 neonatal cardiac operations from the Society for Thoracic Surgeons Congenital Heart Surgery Database between 2010 and 2019, NIT was assessed using a mixed-effect logistic regression model, targeting major neurological injury (stroke, seizure, or deficit at discharge) as a primary endpoint.

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Objective: To maximize successful repair of bicuspid aortic valves by adding figure-of-8 hitch-up stitches at commissures.

Methods: From 2000 to 2022, bicuspid aortic valve repair was performed on 1112 patients at Cleveland Clinic, with 367 patients receiving figure-of-8 hitch-up stitches along with classical techniques, including Cabrol suture, cusp plication, raphe resection, and valve-sparing root replacement. Operative outcomes, repair durability, and survival were assessed in the figure-of-8 hitch-up stitches cohort, and outcomes were compared among 195 balancing-score-matched patient pairs who underwent bicuspid aortic valve repair with and without figure-of-8 hitch-up stitches.

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Objective: Anterior mitral anular calcification, particularly in radiation heart disease, and previous valve replacement with destroyed intervalvular fibrosa are challenging for prosthesis sizing and placement. The Commando procedure with intervalvular fibrosa reconstruction permits double-valve replacement in these challenging conditions. We referenced outcomes after Commando procedures to standard double-valve replacements.

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Background: The Ozaki procedure using autologous pericardium is an interesting but complex alternative for aortic valve replacement. We present a standardized approach to minimize the learning curve and confirm reproducibility.

Methods: After careful preparation, from May 2015 to February 2021, an Ozaki procedure was performed on 46 patients age 51 ± 14 years.

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Objective: During aortic valve reimplantation, cusp repair may be needed to produce a competent valve. We investigated whether the need for aortic valve cusp repair affects aortic valve reimplantation durability.

Methods: Patients with tricuspid aortic valves who underwent aortic valve reimplantation from January 2002 to January 2020 at a single center were retrospectively analyzed.

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Objective: The study objective was to determine repair durability and survival in patients with and without connective tissue disorders undergoing concomitant aortic valve reimplantation and mitral valve repair.

Methods: From 2002 to 2019, 68 patients underwent concomitant aortic valve reimplantation and mitral valve repair, including 27 patients with Marfan syndrome (39.7%).

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Objectives: This study aimed to localise the eloquent cortex and measure evoked field (EF) parameters using magnetoencephalography in patients with epilepsy and tumours near the eloquent cortex.

Methods: A total of 41 patients (26 with drug-refractory epilepsy and 15 with tumours), with a mean age of 33 years, were recruited. Visual evoked field (VEF), auditory evoked field (AEF), sensory evoked field (SSEF), and motor-evoked field (MEF) latencies, amplitudes, and localisation were compared with those of a control population.

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Article Synopsis
  • The study aimed to analyze how surgeon experience and age affect hospital mortality rates after cardiac reoperations, considering institutional experience as well.
  • Over a nearly 70-year period, researchers evaluated data from 36 surgeons performing over 160,000 cardiac operations, using a complex model that included surgeon and institutional experience metrics and patient factors.
  • Findings indicated that while hospital death rates initially decreased rapidly with surgeon experience, they stabilized at a low level after a certain number of reoperations, with surgeon age up to 75 showing a positive correlation with improved outcomes, highlighting the importance of institutional experience in enhancing patient safety.
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Background: Cardiotoxicity is a commonly observed adverse effect seen in breast cancer (BC) patients undergoing chemotherapy with attributes toward cardiac autonomic dysfunction (CAD). Yoga, a mind-body system of medicine that has been shown to improve cardiac autonomic nervous system (ANS) activity in various health conditions, could be an effective adjuvant approach in addressing CAD.

Objective: This study aims to investigate the protective effects of Integrated Yoga Therapy (IYT) on ANS functioning, assessed using Heart rate variability (HRV) in breast cancer patients undergoing chemotherapy.

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Objective: To characterize residual aortic regurgitation (AR), identify its risk factors, and evaluate outcomes following aortic root replacement with aortic valve reimplantation.

Methods: From 2002 to 2020, 756 patients with a tricuspid aortic valve underwent elective reimplantation for aortic root aneurysm. AR on transthoracic echocardiograms before hospital discharge was graded as mild or greater.

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Objective: Post-Norwood mortality remains high and unpredictable. Current models for mortality do not incorporate interstage events. We sought to determine the association of time-related interstage events, along with (pre)operative characteristics, with death post-Norwood and subsequently predict individual mortality.

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Objective: The study objective was to determine the effect of sinutubular junction stabilization on long-term outcomes of bicuspid aortic valve repair.

Methods: From January 1998 to January 2020, 419 patients underwent bicuspid aortic valve repair with ascending aorta replacement and 421 without (bicuspid aortic valve repair alone). Propensity score matching (97 pairs) was used to compare outcomes.

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 The study explores whether the epileptic networks associate with predetermined seizure onset zone (SOZ) identified from other modalities such as electroencephalogram/video electroencephalogram/structural MRI (EEG/VEEG/sMRI) and with the degree of resting-state functional MRI/positron emission tomography (RS-fMRI/PET) coupling. Here, we have analyzed the subgroup of patients who reported having a seizure on the day of scan as postictal cases and compared the findings with interictal cases (seizure-free interval).  We performed independent component analysis (ICA) on RS-fMRI and 20 ICA were hand-labeled as large scale, noise, downstream, and epilepsy networks (Epinets) based on their profile in spatial, time series, and power spectrum domains.

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We sought to couple current cardiac magnetic resonance (CMR) thresholds of right ventricular (RV) size and function with longitudinal trajectories of RV recovery, after pulmonary valve replacement (PVR). We aimed to identify optimal timing of PVR and couple CMR-based metrics with contemporaneous echocardiographic metrics. From June 2002 to January 2019, 174 patients with severe pulmonary regurgitation and peak RV outflow tract gradient <30 mm Hg underwent PVR at Cleveland Clinic.

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Objective: The durability of reimplanted myxomatous aortic valves in root replacements for patients with connective tissue disorders (CTD) is unclear; therefore, we sought to evaluate the long-term resilience of these repairs.

Methods: From January 1980 to January 2020, 214 patients with CTD and 645 without CTD underwent primary, elective aortic valve reimplantation operations at Cleveland Clinic. The CTD cohort included 164 (77%) with Marfan, 23 (11%) with Loeys-Dietz, and 7 (3.

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Background We assessed the Ozaki procedure, aortic valve reconstruction using autologous pericardium, with respect to its learning curve, hemodynamic performance, and durability compared with a stented bioprosthesis. Methods and Results From January 2007 to January 2016, 776 patients underwent an Ozaki procedure at Toho University Ohashi Medical Center. Learning curves, aortic regurgitation (AR), and peak gradient, assessed by serial echocardiograms, valve rereplacement, and survival were investigated.

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Article Synopsis
  • Corpus callosotomy (CC) is a surgical procedure that aims to help patients with drug-resistant epilepsy (DRE) by stopping drop attacks and preventing falls.* -
  • A study reviewed the records of 17 patients who underwent CC, with a majority being young children, and noted improvements in seizure control post-surgery, including complete cessation of drop attacks in all patients.* -
  • The findings suggest that complete CC is more effective for controlling drop attacks compared to partial CC and can lead to a significant reduction in overall seizure frequency.*
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