Vol 15, No 3 (2024)

Cover Page

Full Issue

Original study articles

Results of surgical treatment of aortic stenosis in patients with a narrow aortic root after Ozaki surgery and bioprosthetics: A retrospective single-center study

Bazylev V.V., Mikulyak A.I., Khadiev D.M., Karnakhin V.A., Belik A.O.

Abstract

BACKGROUND: Aortic stenosis (AS) itself is a common disease in patients of older populations, and its combination with a narrow aortic root puts the surgeon in front of choosing the most optimal option. The advantages of Ozaki's operation include hemodynamics close to the native aortic valve (AV) and the absence of the need for lifelong anticoagulant therapy.

AIM: To evaluate the hospital and long-term results of surgical treatment of patients with AS and a narrow fibrous ring who underwent Ozaki surgery or AV prosthetics with a biological prosthesis.

MATERIALS AND METHODS: In total, 836 isolated Ozaki operations or combined interventions of this kind were performed at the Federal Center for Cardiovascular Surgery (Penza). This retrospective single-center study included 150 patients with critical AC (effective opening area ≤1 cm2) in whose surgical treatment tactics Ozaki surgery or prosthetics with a biological prosthesis were used.

RESULTS: In the early postoperative period, group 1 patients had significantly lower values of the average and maximum gradients on the aortic valve and a larger area of the effective opening of the aortic valve. Also, in group 1 patients, the postoperative period of stay in intensive care is significantly higher, which is a consequence of the longer duration of the operation, the time of artificial circulation and myocardial ischemia. Long-term mortality is higher in the group with prosthetics of AV (Log Rank=0.006). Freedom from re-operation according to the analysis, there was no significant difference between the groups (Log Rank=0.226).

CONCLUSION: Ozaki surgery demonstrates the best hemodynamic characteristics on AV in comparison with a biological prosthesis in patients with a narrow fibrous ring of AV in the early and long-term follow-up periods.

CardioSomatics. 2024;15(3):191-200
pages 191-200 views

Treatment adherence priorities: Results of an online survey of doctors providing outpatient services

Larina V.N., Lunev V.I., Fedorova E.V., Sheregova E.N., Kladovikova O.V.

Abstract

BACKGROUND: The opinion of doctors regarding the current issue of low patient adherence to modern medicine will help identify weaknesses in the system and methods to improve them.

AIM: To assess the doctors’ opinion regarding the problem of adherence to outpatient treatments.

MATERIALS AND METHODS: Using an online survey form (nine questions regarding adherence to outpatient treatments), 105 doctors were surveyed, including general practitioners (GPs; 51%), therapists (27%), cardiologists (21%), and other specialties (1%). The survey results were processed using hierarchical cluster analysis.

RESULTS: The following clusters were identified: cluster 1 (K1), which included 62 respondents (GPs, 63% and therapists, 32%); and cluster 2 (K2), which included 43 respondents (cardiologists, 47%; and GPs, 35%). Doctors in both the clusters correctly determined the adherence to treatment (K1=77%, K2=88%; p=0.531), followed clinical practice guidelines when diagnosing a patient with cardiovascular disease (K1=66%, K2=88%; p=0.020), believed that the doctor’s behavior influences the patient’s adherence (K1=86%, K2=98%; p=0.045), and believed that patients should be educated regarding their disease (K1=84%, K2=100%, p=0.005). They believed that the most significant topics to be taught were arterial hypertension, heart failure (HF), coronary artery disease, arrhythmia, and chronic kidney disease (K1=81%, K2=86%; p=0.876). Furthermore, they agreed that the use of technology and mobile apps (K1=61%, K2=70%, p=0.371) could increase patient adherence to treatment. Twenty doctors correctly identified the medications indicated for HF with reduced ejection fraction to improve patient prognosis (K1=2, K2=18; p <0.001). The remaining respondents answered partially correctly (K1=97%, K2=58%; p <0.001). The respondents identified that the lack of time at appointments to explain and improve the patient’s motivation for treatment (K1=47%, K2=47%, p=0.226) and the patient’s low health literacy (K1=26%, K2=35%; p=0.226) were the most significant reasons for low adherence.

CONCLUSION: Most physicians providing outpatient services are aware of the concept of medication adherence and following clinical practice guidelines when managing patients with cardiovascular pathology. The lack of sufficient time for outpatient appointments and the patient’s low health literacy are the leading factors of low adherence to treatment. Thus, the doctors unanimously believe that educating patients regarding their disease will increase adherence to treatment.

CardioSomatics. 2024;15(3):201-210
pages 201-210 views

Reviews

Pharmacogenetics of warfarin: A literature review

Izmozherova N.V., Shambatov M.A., Popov A.A., Zhuk D.E., Solodchenko V.A.

Abstract

Warfarin is an oral indirect anticoagulant that is widely used for the prevention of thromboembolic events. Pharmacogenetic testing is the most promising approach to personalizing warfarin treatment. In this review, we aimed to summarize how the patients’ genetic predispositions affect the pharmacokinetics of warfarin, which determines the different dosing regimens for patients. To correctly interpret data in clinical settings, algorithms for selecting the optimal dosing regimen need to be developed that consider the patient’s age, sex, weight, height, health status, and genetic characteristics. These algorithms could help determine the optimal dose, enhance patient adherence to treatment, and increase the physician’s confidence in the treatment safety. Furthermore, although algorithms that consider SNPs in the CYP2C9, VKORC1, and CYP4F2 genes are more effective in predicting warfarin doses, their effectiveness varies according to race.

CardioSomatics. 2024;15(3):211-220
pages 211-220 views

Prospects of using miRNA-378 as a biomarker for cardiovascular diseases: A literature review

Alieva A.M., Khadzhieva N.K., Baykova I.E., Rakhaev A.M., Kotikova I.A., Nikitin I.G.

Abstract

Currently, there is an active search for new biomarkers and therapeutic targets to develop effective approaches to risk stratification and secondary prevention of cardiovascular diseases (CVD). Microribonucleic acids (miRNAs) are of particular interest to investigators. MiRNAs are endogenous small noncoding RNAs that regulate the transcription of factors that play a role in the proliferation, differentiation, cell growth, and tissue remodeling processes in CVD. MiRNA-378 is currently being analyzed as a biomarker for CVD. Thus, in this review, we aimed to describe the regulatory role of miRNA-378 and provide strong evidence for its feasibility as a biomarker. Further preclinical and clinical studies are required to identify the potential benefits of miRNA-378 as a biomarker in CVD.

CardioSomatics. 2024;15(3):221-230
pages 221-230 views

Role of inflammaging in the development of chronic heart failure and osteoporosis: A literature review

Larina V.N., Shcherbina E.S.

Abstract

The interaction between heart failure (HF) and osteoporosis in a multimorbid patient is a relevant complication in the aging population. The concept of inflammaging (inflammatory aging) allows us to consider the prolonged process of subclinical inflammation as an adaptation. Depending on the positive or negative influence of inflammaging on the human body, it may induce healthy longevity or aging that is accompanied by geriatric syndromes and various pathologies, including HF and osteoporosis. In this review, we aimed to highlight the issue of inflammaging as a systemic factor in the development of HF and osteoporosis. The function of inflammatory markers, the role of the NLRP3 inflammasome in the immunoinflammatory pathway, and NLRP3’s role in the development of both HF and osteoporosis via the formation of proinflammatory cytokines have been discussed. The influence on different pathogeneses have been considered to determine the development of new therapies.

CardioSomatics. 2024;15(3):231-242
pages 231-242 views

Case reports

Thrombosis of the superior vena cava in a patient with an implanted cardioverter–defibrillator: A case report

Paranina E.V., Lebedev P.A., Yakunina A.V., Elizarov M.A., Paranin P.O.

Abstract

BACKGROUND: Superior vena cava syndrome results from the occlusion of blood flow in the superior vena cava due to external compression, internal obstruction, or infiltration of the vessel wall by a tumor. Although thrombotic complications caused by electrodes of cardiac implantable devices are uncommon in clinical practice, their incidence has been increasing due to the increasing need for such devices, which effectively correct the compromised electrical or mechanical functions of the heart chambers.

CLINICAL CASE DESCRIPTION: Herein, we have presented a case of superior vena cava thrombosis syndrome in a patient who had undergone cardioverter–defibrillator implantation for dilated cardiomyopathy. We have discussed the classification of superior vena cava syndromes, its pathogenesis, and the types of collateral circulation.

CONCLUSION: As observed in our patient, the concurrent presence of chronic heart failure syndrome can make it challenging to recognize superior vena cava syndrome in the early stages of diagnosis.

CardioSomatics. 2024;15(3):243-253
pages 243-253 views

Takotsubo syndrome with transient obstruction of the left ventricle outflow tract: A case report

Maznev D.S., Evdokimov D.S., Evdokimova E.D.

Abstract

BACKGROUND: Modern data have expanded our understanding of the pathogenetic mechanisms and clinical and laboratory findings in a patient with Takotsubo syndrome (TS). Nonetheless, its timely diagnosis and treatment remain challenging. All patients are initially treated according to the acute coronary syndrome protocol, with a "working" diagnosis of myocardial infarction without an obstructive lesion in the coronary arteries. However, the treatment of in-hospital complications of TS has its limitations and specific features.

CLINICAL CASE DESCRIPTION: Herein, we have reported a case of TS that presented with the classic apical ballooning of the left ventricular apex, which had developed without an obvious stress factor, which is quite rare. The disease was complicated by the development of cardiogenic shock (CGS) and transient obstruction of the left ventricular outflow tract (LVOTO), which reportedly occurs in about 25% of the patients. CGS in patients with TS is a life-threatening complication and a challenging therapeutic problem, especially when it is also associated with a dynamic LVOTO. In such conditions, the only therapeutic option is mechanical circulatory support. However, in our patient, low doses of dobutamine were used to stabilize the patient’s hemodynamics. This treated produced a good therapeutic effect.

CONCLUSION: Our case report findings emphasize the need for further research into the mechanisms of LVOTO development in TS, as well as the development of standardized approaches for the treatment of such patients in the acute phase of the disease.

CardioSomatics. 2024;15(3):254-263
pages 254-263 views


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