Cadaveric Study on the Morphology and Morphometry of Heart Papillary Muscles

Bhadoria, Poonam; Bisht, Kanchan; Singh, Bhugwan; Tiwari, Vandana

doi:10.7759/cureus.22722

Cited by 4 publications

(2 citation statements)

References 20 publications

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“…In thepresent work we adopted (Saha & Roy, 2018) criteria because we considered it as complete and clear evaluation of the PM morphological expression. We agree with (Saha & Roy, 2018;Bhadoria et al, 2022) and identified truncated as the most common APM shape (32 -66.2 %), followed by flattened (20 -27.8 %), conical (5.2 -15.6 %), bifurcated (8.9 -10.4 %) and trifurcated (<5 %). The conical shape of the MPP for (Saha & Roy, 2018) is the most frequent (45.8 %) while in the present study considering 121 total PPM the truncated shape is documented as having the highest incidence (36.4 %).…”

Section: Discussionsupporting

confidence: 87%

Morphological Assessment and Possible Clinical Implications of the Left Ventricle Papillary Muscles. Study in a Colombian Population Sample

Ballesteros-Acuña,

Gómez-Torres,

Estupiñán-Velasquez

2024

Int. J. Morphol.

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Papillary muscles in the left ventricle present multiple anatomic expressions that are relevant for medical fields focusing on the understanding of clinical events involving these structures. Here, the aim was to perform a morphological characterization of the left ventricle papillary muscles in a sample of Colombian population. In the study were included eighty-two hearts from male individuals who underwent autopsy at the Institute of Legal Medicine and Forensic Sciences in Bucaramanga, Colombia. In each heart was carefully performed a longitudinal incision on the obtuse margin to visualize the papillary muscles. Data set was registered, and analysis of the continuous and categorical variables was carried out. Single anterior papillary muscle was observed in 74 samples (90.2 %) whereas this represented only 48 specimens (58.5 %) for the posterior papillary muscle (p = 0.3). Mean length and breadth of the anterior muscle were 29.9 ± 4.94 and 11.74 ± 2.75 mm, and those for the posterior muscle were 27.42 ± 7.08 and 10.83 ± 4.08 mm. Truncated apical shape was the most frequent type observed on the papillary muscles, anterior 41 (50 %) and posterior 37 (45.1 %), followed by flat-topped in the anterior 25 (30.5 %) and bifurcated in posterior muscle 14 (17.1 %). A mean of 9.04 ± 2.75 chordae raised from the anterior and 7.50 ± 3.3 from posterior papillary muscle. In our study we observed a higher incidence of single papillary muscles and slightly larger dimensions than information reported in the literature. The anatomic diversity of the papillary muscles should be considered for the correct image interpretation, valve implantation and performance evaluation on myocardial ischemic events.

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Section: Discussionsupporting

confidence: 87%

Morphological Assessment and Possible Clinical Implications of the Left Ventricle Papillary Muscles. Study in a Colombian Population Sample

Ballesteros-Acuña,

Gómez-Torres,

Estupiñán-Velasquez

2024

Int. J. Morphol.

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“…Нnatjuk et al, (2017), морфологам потрібно користуватися своїми кількісними параметрами серця, враховуючи вікові зміни. Тому, важливе значення у морфології, для визначення будови, форми, розмірів органів та систем, співвідношення їх специфічних структурних особливостей, має математичний аналіз структур морфологічних об'єктів, який здобув визнання як метод, що вирізняється об'єктивністю та достовірністю (Hryhorieva & Cherniavskyi, 2018;Bhadoria et al, 2022).…”

Section: результати та їх обговоренняunclassified

Anatomical and morphological features of the heart of a domestic dog (Canis Lupus Familiaris L., 1758)

Ragulya,

Goralskyi,

Sokulskyi

et al. 2024

SMLNUVMB

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Cardiovascular organopathology in dogs occurs quite often, but is not fully diagnosed. The occurrence of cardiovascular pathology is due to inadequate physical activity, infectious diseases, injuries, blood loss, diseases of the lungs and other systems, hereditary factors, etc. It is known that prevention, diagnosis, surgical intervention and treatment of these pathologies are impossible without knowledge of the morpho-functional parameters of anatomy, histology and physiology. The cardiovascular system in mammals performs vital functions, ensuring the vital activity of the animal and human body. The cardiovascular system is very plastic in relation to the morpho-functional relationship and has not only pronounced hereditary individual traits, but also the ability to quickly adapt to the changing conditions of the organism's existence. It is one of the first to respond to various natural and anthropogenic factors of the environment and physical stress. The study of the cardiovascular system is an urgent issue today. The aim of the study was to study the morphological assessment of macro- and microstructures of the heart of a sexually mature domestic dog (n = 5), class – Mammalia, species – wolf (Canis lupus), subspecies – domestic dog (Canis familiaris). The completed work is a fragment of the scientific topic of the scientific research work of the Department of Normal and Pathological Morphology, Hygiene and Expertise of the Faculty of Veterinary Medicine of the Polish National University on the topic: “Development, morphology and histochemistry of animal organs in normal and pathological conditions”, according to state registration number No. 0113V000900 and scientific topics: “Features of the morphology of the heart of domestic mammals”, state registration No. 0121U108884. For the work, complex morphological research methods were used: anatomical, histological, organo-, histo- and cytometric, statistical, thanks to which new data on the peculiarities of the macro-, histo- and cytomorphometric characteristics of the morphological structures of the heart in the studied animals were presented. The dog's heart has a rounded shape, its absolute weight is 167.58 ± 9.46 g (without epicardial fat – 154.22 ± 8.04 g), relative weight is 0.72 ± 0.005 %. It was established that the microscopic structure of the ventricles and atria of the dog's heart differ by cytometric indicators, depending on their morphofunctional load. Thus, cardiomyocytes of the left ventricle have the largest volume – 2941.76 ± 127.44 μm3, the right one has a smaller volume – 2237.24 ± 103.02 μm3, and the cardiomyocytes of the atria have the smallest volume – 1496.92±98.02 μm3. The volume of the nuclei of cardiomyocytes of the left ventricle is 64.58 ± 5.09 μm3, of the right ventricle – 59.97 ± 5.83 μm3, the volume of cardiomyocytes of the atria is correspondingly smaller – 53.06 ± 6.02 μm3. At the same time, the nuclear-cytoplasmic ratio of cardiomyocytes of the left ventricle is equal to 0.0224±0.0076, cardiomyocytes of the right ventricle are more important – 0.0275 ± 0.0081, and cardiomyocytes of the atria are the most important – 0.0367 ± 0.0105. We associate such ambiguous cytometric parameters of cardiomyocytes with the morphofunctional activity of the ventricles and the functional features of this myocardial tissue, which is capable of spontaneous rhythmic contractions, as a result of which blood moves through a closed vascular system. Information on the morphology of the heart of a domestic dog, including the results of the study of the macro- and microscopic structure of the studied organs, which are presented in the publication, are of great importance for histology and comparative anatomy, and also make a significant contribution to clinical veterinary medicine.

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Bilateral Ventricular Papillary Muscle Variations — A Morphometric Study in South Indian Population

R.,

Verma,

Patra

2024

Preprint

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BACKGROUND: Papillary muscles (PM) are vital, especially in cases of atrioventricular (AV) valve prolapse. Bilateral and population-specific variations in PM length are among the several factors that influence the failure of AV valve replacement surgeries. PM morphometric variations between ventricles necessitate a thorough understanding of the effective surgical interventions. AIM: This study aimed to measure PM variations in the South Indian population to determine appropriate preventive measures, i.e. to compare PM morphometric parameters in both side heart ventricles and correlate the findings with baseline characteristics. METHODS: This 2-year autopsy-based prospective study involved 171 fresh adult heart samples. The PM was classified by position and measured for length, breadth, and thickness, with the anterior PM being the largest in both. RESULTS: The study outcomes showed statistically significant and consistent differences in the PM dimensions between the left and right ventricles. The left ventricular anterior PM were longer, broader, and thicker than their right ventricular counterparts (P <0.05). The PM morphometric characteristics of the South Indian Population, when compared with the baseline characteristics, showed a significant but variable degree of difference. CONCLUSION: The findings of this study emphasize the importance of considering ventricular-specific PM morphometric data to optimize surgical strategies and prevent treatment failures.

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Cadaveric Study on the Morphology and Morphometry of Heart Papillary Muscles

Cited by 4 publications

References 20 publications

Morphological Assessment and Possible Clinical Implications of the Left Ventricle Papillary Muscles. Study in a Colombian Population Sample

Morphological Assessment and Possible Clinical Implications of the Left Ventricle Papillary Muscles. Study in a Colombian Population Sample

Anatomical and morphological features of the heart of a domestic dog (Canis Lupus Familiaris L., 1758)

Bilateral Ventricular Papillary Muscle Variations — A Morphometric Study in South Indian Population

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