bluuebunny/crossref_metadata_2025_split huggingface dataset:
TAKOTSUBO SYNDROME PRECEDING THE INDEX EVENT: A DANGEROUS CLINICAL SETTING
Authors: Notarianni G , Pontillo D , Luciani M , Malavasi M , Zampi G , Sommariva L 
Published: May 2024

Abstract
We describe the case of a 68–year–old patient who presented to the Emergency Department following an unwitnessed syncopal episode with slow recovery of consciousness. On admission, the patient had dyspnoea together with physical signs of pulmonary congestion. Cardiac ultrasound showed severe left ventricular dysfunction with an ejection fraction of 30%, and apical and paraapical akinesis. The admission electrocardiogram showed sinus tachycardia and diffuse repolarization abnormalities, hs TnI was elevated and BNP vl blood gas analysis were unremarkable. During observation in the Emergency Department, the patient experienced epileptic seizure, promptly resolved by intravenous Midazolam. Contrast–enhanced chest CT ruled out aortic dissection disclosing a clinically irrelevant subsegmental pulmonary embolism. A non–contrast CT scan of the brain yielded negative results. In consideration of the atypical clinical presentation and scattered evidence of an acute coronary syndrome, the patient was admitted to our Cardiac Intensive Care Unit (CICU) for additional diagnostic workup delaying coronary angiography in the presence of stable TnI elevation. Three hours after admission the patient continued showing altered consciousness and a subsequent brain CT was performed, demonstrating an intraparenchymal hemorrhagic spreading. Repeat ECGs showed precordial T wave inversion and prolongation of the QT interval. These data, together with LV apical dysfunction, raised the suspicion of Takotsubo syndrome secondary to an acute cerebrovascular event. During the hospital stay, recovery of consciousness, spontaneous absorption of the cerebral hemorrhagic spread and complete recovery of left ventricular function at repeat cardiac ultrasound examinations were observed, confirming the almost unequivocal diagnosis of Takotsubo syndrome. The patient was discharged uneventfully and was scheduled for an outpatient coronary CT scan. This case underscores the crucial importance of a thorough clinical assessment in the management of complex patients in the presence of nonunivocal clinical signs and misleading blood test and imaging data. Moreover, Takotsubo syndrome is a protean clinical entity that can precede the index event as in our patient, i.e. cerebral hemorrhage. Misclassification of these patients as having an acute coronary syndrome could have led to the initiation of antithrombotic therapy, with potential fatal outcomes for the patient.
SCARY ECG IN TAKOTSUBO CARDIOMYOPATHY
Authors: Iezzi L , Cicchitti V , Gallina S 
Published: May 2024

Abstract
Takotsubo cardiomyopathy (TTC) is characterized by a transient ventricular wall motion abnormality and shares common features with acute coronary syndrome (ACS) with a wide spectrum of triggers, such as both emotional or physical, activating common toxic catecholamines–mediated pathways. TTC might be associated with severe clinical complications. We report a case of a 74–year female patient with circulatory shock with mixed phenotype, distributive due to sepsis and cardiogenic due to TTC. The patient presented to the emergency department with severe hypotension, pathological qSOFA score and clinical and laboratory findings consistent with severe sepsis. ECG showed diffuse lambda ST–segment elevation, also called “shark fin”(fig.1). According to hemodynamically unstable scenario and ECG pattern, emergency coronary angiography was performed, showing absence of coronary artery disease(fig. 2). Echocardiography revealed severe LV systolic disfunction (EF 20–25%) with apical ballooning and severe systolic anterior motion (SAM) of the anterior mitral leaflet eliciting dynamic LVOTO with peak gradient greater than 90 mmHg; fig. 3) and severe MR. Patient was treated with cautious fluid administration, hemotrasfusion and empiric large spectrum antibiotic therapy. According to TTC working diagnosis, even if septic state was thought to contribute to cardiogenic shock, norepinephrine was not administered due to concerns for LVOTO and SAM. After overcoming of dramatic first phase and after hemodynamic steadiness was achieved, beta blockade and ACEi were progressively administered. Seriate transthoracic echocardiogram revealed progressive improvement of LV systolic function, regression of apical ballooning, SAM and LVOTO. ECG monitoring showed regression of ischemic ST elevation. ST elevation has been described in about 56% of TTC cases, however with amplitude tipically lower than in STEMI. Lambda–wave ST elevation has been rarely reported. Vasospasm, local intermittent microvascular constriction, catecholamine–induced metabolic toxicity, transmural systolic wall tension and its the mechano–electric feedback can explain scaring ECG–pattern. Despite its rare prevalence in TTC “shark fin” pattern appears to relate to adverse outcome and it should be used as an early marker of potential further clinical deterioration, suggesting more intensive monitoring to avoid delays in possible therapy escalation.
DEEP SEPTAL LEFT VENTRICULAR PACING VS HIS BUNDLE PACING: A SINGLE–CENTER EXPERIENCE COMPARISON
Authors: Marinaccio L , Putorti F , Marmai A , Migliore F 
Published: May 2024

Abstract

Introduction
Right ventricular apical pacing (RVAP) causes ventricular dyssynchrony, impairing ventricular function. Biventricular pacing (BVP) improves on RVAP but still has a non–physiological activation pattern. Alternative pacing sites like His Bundle Pacing (HBP) and Left Bundle Branch Area Pacing (LBBaP) address this issue. However, HBP implantation has higher capture thresholds and longer procedures, increasing peri–procedural risks and reducing battery life. LBBaP, defined by MELOS study, resolves the capture threshold issue but may not consistently achieve successful implantation due to strict electrocardiographical signs of success. Deep Septal Left Ventricular Pacing (DSLVP) is an alternative, but more studies are needed.

Aim
This study compares HBP and DSLVP, assessing their hemodynamic impact on left ventricular systolic function over a year through semestral re–evaluation. We also evaluate implantation success rates, capture thresholds, and sensing amplitude during follow–up.

Methods
This observational retrospective study included 51 patients eligible for bradycardia/resynchronization therapy according to guidelines. Among them, 35 received successful HBP implants, while 16 initially underwent BVP failure and later received DSLVP based on individual anatomic considerations. Patients underwent follow–ups at 6 months and 1 year, where we collected echocardiographic data, capture thresholds, and sensing amplitudes.

Results
Both pacing systems demonstrated a comparable increase in Ejection Fraction (EF) from implantation to the end of the follow–up period (HBP: 40% to 46%, p &lt; 0.47; DSLVP: 40% to 48%, p &lt; 0.01). DSLVP did not significantly narrow QRS duration before and after implantation (146 ms vs. 136 ms, p = 0.2). HBP had a 97% implantation success rate (34 out of 35 patients), while DSLVP achieved a 100% success rate (16 out of 16 patients). Capture thresholds and sensing amplitudes remained satisfactory for both techniques, with no significant increases during follow–up (DLVSP: 0.55 V vs. 0.58 V, p &gt; 0.05; HBP: 1.24 V vs. 1.38 V, p &gt; 0.05). However, HBP had significantly higher capture thresholds than DSLVP at both implantation (0.55 V vs. 1.24 V, p &lt; 0.002) and follow–up (0.58 V vs. 1.38 V, p &lt; 0.01).

Conclusion
DSLVP offers comparable hemodynamic benefits at implantation and post–implantation results to HBP. Lower capture thresholds in DSLVP extend battery life, making it a valid alternative to HBP.
ablate and pace with conduction system pacing, Rovigo's experience
Authors: Porcelli G , Zanon F , Marcantoni L , Pastore G , Valenza S , Deluca F 
Published: May 2024

Abstract

Background
Several clinical data demonstrate that atrio ventricular junction (AVJ) ablation, followed by cardiac pacing, in atrial fibrillation (AF) with uncontrollable heart rate is beneficial. There are still limited data about conduction system pacing (CSP) in that setting.

Aims
To analyse if this “ablate and pace” strategy is feasible with good electrical results (ECG and parameters) and clinical outcomes (heart failure (HF) admission, ejection fraction (EF) and NYHA class). To analyse also differences between his bundle pacing (HBP) and left bundle branch area pacing (LBBAP) in this setting. Methods. This is an observational retrospective single center study involving 30 patients of which 11 had a HBP and 19 a LBBAP from March 2019 to June 2023 (medium follow up 33 ± 18 month). The implant procedure was performed with both stylet driven or lumenless lead. After 2 ± 2 weeks was performed the AVJ ablation. The electrical parameters were measured at the implant and every 6 – 12 months. The patients had an echocardiographic and clinical evaluation every 6 – 12 months. There was nobody with a NYHA class IV.

Results
The procedure was performed without complication in all patients. There were a rising in the EF (49,9 ± 14,6 vs 54,2 ± 10,4% p = 0.004). There weren’t HF admission and only 2 patients died (not for cardio–vascular causes) during follow up. There were also a decrease in NYHA class in every patient (at least one NYHA class less). 17 (57%) patients had normal ventricular conduction, only 4 (13%) had LBBB, 4 (13%) RBBB. There were not statistical difference between the QRS duration pre and after implant (129 ± 35 vs 125 ± 24 ms p = 0,06). The threshold measured at the implant were stable both in the HBP (0,75 ± 0,34 vs 1,3 ± 0,8 V @ 0,4 ms p = 0,14) and in the LBBAP (0,93 ± 0,3 vs 0,89 ± 0,3 V @ 0,4 ms p = 0,49). The LBBAP presented higher values of sensing compared with HBP (17,5 ± 7,4 vs 6,3 ± 3,3 mV p = 0,04) and less procedural (63 ± 32 vs 95 ± 41 min, p = 0,02) and fluoroscopic time (2,6 ± 2,4 vs 7,5 ± 4,1 min, p = 0,04) compared with HBP.

Conclusion
The CSP is feasible and safe in the setting of “ablate and pace” and results in a clear increasing in EF and clinical status of patients with good and stable ECG features and electrical parameters during follow up; the CSP indeed represent a valuable alternative to BVP in this setting. LBBAP performed better than HBP in terms of procedural and fluoroscopic time and of higher sensing values.
THROW YOUR LEAD OVER THE OBSTACLE: A CHALLENGING CRT UPGRADING
Authors: Valenza S , Pastore G , Marcantoni L , Deluca F , Porcelli G , Zanon F 
Published: May 2024

Abstract
High percentage of right ventricular pacing could lead to pacing induced cardiomyopathy in a non–negligible proportion of patients. Cardiac resynchronization therapy upgrading could represent an option to improve ventricular function, reducing heart failure hospitalizations. A 82 yo male was admitted to hospital with symptomatic heart failure. He had history of complete AV block treated with dual chamber pacemaker implantation five years earlier following coronary artery bypass graft surgery, bioprosthetic aortic valve replacement and septal myectomy. He had also history of cardiac arrest occurred in the context of acute coronary syndrome treated with PCI so that ICD implant was not considered at that time, and two more HF hospitalizations in previous years. Progressive LVEF decline was documented since PM impantation until last echo showed severe left ventricular dysfunction (EF 20% from baseline EF 60%). The ECG showed sinus rhythm and wide paced QRS (206 ms) with 100% pacing percentage. A CRT device upgrading was planned. Baseline venography initially showed pervious axillary–subclavian left axis, but unfortunately the guidewire encountered a complete occlusion before entering the superior vena cava. Nevertheless, dye contrast injection documented the presence of a proximal collateral branch (fig A) having a vertical course in the thorax and reaching the lateral wall of the left ventricle with an extrapericardic course then entering the right heart through inferior vena cava. Using a IM 5Fr sheath (usually used by interventional cardiologists to cannulate internal mammary artery) we could reach this branch, inserting a guidewire and finally advancing a quadripolar lead (Fig B–C) which reached the lateral left ventricular wall. LV capture was confirmed when pacing from the three proximal poles, while the distal one caused phrenic nerve capture. The quadripolar lead was connected to the LV port of a three chamber PM along with previous implanted leads thus obtaining biventricular pacing. QRS paced was 50 ms shorter than baseline. No peri–procedural complications occurred. Lead–related venous occlusion might represent an obstacle to CRT upgrade requiring high technical expertise. The presence of a complete venous occlusion might cause procedural failure, particularly in hospitals without surgical facility. In this case, the presence of a collateral branch reaching the lateral wall of the left ventricle allowed to successfully complete the CRT upgrade.
USE OF LIFE–VEST AND COMPLEX RE–IMPLANTATION OF CRT–D IN PATIENT WITH POCKET INFECTION BY MULTIRESISTENT S. AUREUS AND PERSISTENCE OF LEFT SUPERIOR VENA CAVA
Authors: Sorvillo G , Olivieri F , Rainone A , Quercia E , Violante A , Mazza A , Corrado L , Colangelo G , Luisi I , Calvanese C , Riccio G 
Published: May 2024

Abstract
Patient with primary hypokinetic dilated cardiomyopathy, previously underwent coronary angioplasty with stent implantation on MO branch and subsequent implantation of CRT–D in right subclavian region for persistence of left superior vena cava and complicated left sided implantation; hypertensive, dyslipidaemic, diabetic. Repeated subsequent surgery for shock channel malfunction with re–implantation of right ventricular lead. He came to our observation for infection of the CRT–D pocket by multiresistant Staphylococcus Aureus treated by intravenous antibiotic therapy and explantation of the infected device. We therefore proceeded to discharge the patient with Life–Vest as a bridging strategy until re–implantation and continued with long–acting antibiotic therapy administered every fortnight. After about 8 weeks, once the presence of infectious/inflammatory processes has been ruled out, CRT–D reimplantation is performed, after prophylaxis with Vancomycin, in the right subclavian region under sterile conditions and in the absence of complications. The management of cardiac device infections represents a challenge for the cardiologist especially in the complex patient with a history of re–interventions in which multi–resistant pathogens are often found. This clinical case demonstrates how collegial patient assessment and long–term protection strategies, such as the use of a Life–Vest, can achieve the diagnostic–therapeutic goal.
PREVALENCE OF ELEVATED LOW DENSITY LIPOPROTEIN CHOLESTEROL (LDL–C) LEVELS IN ADULT PATIENTS WITH COMPLEX CONGENITAL HEART DISEASE
Authors: Liguori C , Siracusa A , Orlando A , Franzese R , Borrelli N , Barracano R , Scognamiglio G , Sarubbi B 
Published: May 2024

Abstract

Background
Thanks to advances in both medical care and surgical techniques, survival for adult patients with congenital heart disease (ACHD) has significantly increased over recent years, with about 90% of them now reaching adulthood. However, as CHD patients grow older, their relative risk of developing coronary artery disease (CAD) increases. Elevated low–density lipoprotein cholesterol (LDL–C) levels play a pivotal role in the genesis of CAD in the general population. Limited data exist on the prevalence of hyperlipidemia in the ACHD population. Patients with complex CHD should be considered at increased risk for CAD, mainly related to to the severity of the CHD and aging. For this reason, it could be reasonable to apply targets used for patients at high risk of CAD. Our study aimed at describing the overall prevalence of elevated LDL–C levels in a contemporary cohort of adult patients with complex CHD.

Materials and Methods
This is a single–centre retrospective study. All adults with complex CHD who attended the outpatient clinic at our tertiary centre from January 2000 to April 2023 were included. Demographic, clinical and laboratory data were obtained in all patients from medical records and our dedicated databases.

Results
A total of 230 patients with complex CHD were included in the present study (mean age 35±11 years, 124 male, mean follow up of 117±80 months). One hundred forty–three (63%) of them showed biventricular physiology, whereas 86 (37%) patients showed univentricular heart physiology. Eighty patients from our cohort underwent Fontan operation. Twenty patients (9%) showed oxygen saturation at rest lower than 90%. Mean levels of LDL–C was 87±28 mg/dl, with 184 patients (78%) showing LDL–C levels ≥ 55 mg/dl.

Conclusion
Our study demonstrated that, despite their relatively younger age, elevated LDL–C levels are not uncommon in patients with severe CHD. ACHD patients with complex anatomy, such as patients after Fontan operation, should be considered at increased risk of ischaemic events and treated accordingly. Further research and international collaboration are therefore paramount to understand whether and if these patients should be treated with lower lipid drugs as for the general population.
A LABILE EQUILIBRIUM: THE CONTROVERSIAL ROLE OF BETA–BLOCKERS IN A CASE OF MID–VENTRICULAR TAKOTSUBO SYNDROME
Authors: Falagario A , Pedio E , Antonacci A , Colucci C , Mannarini A , Camassa N , Pansini M , D‘Agostino C 
Published: May 2024

Abstract

Case Report
Takotsubo syndrome (TTS) is a non–ischemic heart disease mimicking acute coronary syndrome. The mid–ventricular variant is almost rare (15% of TTS cases). A 62 years old woman was referred to our hospital for oppressive chest pain radiating to the jaw lasting at least 30 minutes after an attempted strangulation by a family member. She denied any conventional cardiovascular risk factor; she was taking beta–blockers (BB) to reduce symptomatic and idiopathic premature ventricular complexes (PVCs) burden. On arrival, the patient was hemodynamically stable, reporting only swallowing difficulties. Physical examination revealed neck bruising and irregular pulse. The initial ECG showed sinus rhythm with a heart rate of 62 bpm, PVCs and a biphasic T wave in lead aVL. Hs–cTnI first dosage was 145 pg/mL. Transthoracic echocardiography (TTE) found moderate left ventricular (LV) dysfunction and severe hypokinesis of mid septal and mid inferior segments. Coronary angiography revealed normal coronary arteries. Left ventriculogram showed hypokinesis of the midventricular section with a hyperdynamic base and apex suggestive of mid–ventricular variant of TTS. After a few hours, she experienced a lipothymic episode and telemetry showed marked sinus bradycardia followed by multiple sinus pauses. A TTE was immediately performed, demonstrating a worsening LV ejection fraction with new development of severe symmetrical akinesia of the LV apex. Successively, psychotherapy was started. Wall motion abnormalities and LV systolic function completely recovered over a few days. At present the patient is in good health status.

Discussion
domestic violence against women is prevalent, but it is often omitted as a potential stress trigger that affects their hearts. In Italy, it’s reported that 32% of women had experienced physical violence. Strangulation is very uncommon as cause of TTS and psychotherapy may prevent recurrences and recover in a shorter time. Bradycardia due to atrioventricular block and asystole has been described in the acute phase of TTS and it is often attributed to BB therapy. Although BB have been proposed to add further benefit of blunting the effect of catecholamine excess, their use should be used cautiously in the acute phase of TTS. Moreover, beta–adrenoceptor hypersensitivity may generate a parasympathetic drive when on BB infusion, provoking a worsening LV dysfunction and a transient sick sinus syndrome as we described.
CARDIAC REHABILITATION AND PSYCHOLOGICAL TREATMENT: CONTRASTS IN ANXIETY, DEPRESSION AND ILLNESS PERCEPTION LEVELS
Authors: Greco A , Zenoni E , Bariletti I , Quarenghi F , Viscardi L , Rizzola G , Brivio F , Soddu I , Anselmi Kaiser M , Bigoni A , Giudici V , Lanfranchi F 
Published: May 2024

Abstract

Background
Investigating the relationship between psychological factors and cardiovascular diseases (CVD) has long been a focal point of previous research. Researchers have primarily focused on identifying possible predictive factors for CVD’s development and examining patients’ responses during acute or chronic phases, but less is known about the role of cardiac rehabilitation and the types of psychological treatments on patients’ psychological status.

Aims
The aim of this study is to compare anxiety, depression, and illness perception levels of patients affected by different cardiovascular diseases at the beginning (t0), at the end (t1), and three months after a cardiac rehabilitation program (t2) in which patients were involved in three different types of psychological treatments: psychoeducational intervention group, progressive muscle relaxation training integrated with Jacobson‘s technique and imaginative stabilization techniques, individual counseling.

Methods
In this study were involved patients with recent episodes of Acute Coronary Syndrome (ACS), heart failure (HF) or cardiac surgery undergoing cardiac rehabilitation between January 2023 and August 2023 at ASST Bergamo Est. To assess anxiety, depression and illness perception levels of participants we used self–report questionnaires that included the Hospital Anxiety and Depression Scale (HADS) and the Brief Illness Perception Questionnaire (Brief–IPQ). Patients could be assigned to different psychological treatments based on their clinical condition.

Results
The study involved 181 participants, namely N=36 ACS cases (19.9%), N=25 CHF (13.8%), and N=120 cardiac surgery (66.3%). As shown in Table 1, males were 71.3% (N=129) and the average age was 65.96 years old (SD=11.904). One hundred–sixty einght patients participated in psychoeducational intervention group, 120 in relaxation training, and 35 in individual counseling. Statistically significant differences in anxiety, depression, and illness perception levels were observed at the program‘s initiation (t0) and upon completion (t1 and t2) in relation to the psychological treatments: individual counseling had a better impact on levels of anxiety and depression and on the development of a more adequate perception of illness.

Conclusions
The type of psychological treatment during cardiac rehabilitation appears to give different results in terms of psychological status, self–care and disease management of patients.