Hemodynamic Changes
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2022 ◽  
Vol 8 (1) ◽  
pp. 154-159
Author(s):  
A. Subanova

A study was carried out of women with arterial hypotension against the background of the development of the pathological state of the fetus and newborns born to women living in two different climatic regions of Osh city and in the highlands of Chon-Alay district of Osh region. In the pathogenesis of pregnancy complications caused by arterial hypotension, the leading importance is attached to vascular disorders and microcirculation disorders, leading to systemic hemodynamic changes in the body of a pregnant woman. It was found that in mountainous terrain, arterial hypotension and exogenous hypoxia affect the “mother–placenta–fetus–newborn” system, increasing the load on the respiratory, circulatory and hematopoietic organs of the mother, and also leads to impaired placental function.


Author(s):  
Zainab Alghareeb ◽  
Kawther Alhaji ◽  
Bayan Alhaddad ◽  
Balgis Gaffar

Abstract Objectives This study aimed to investigate hemodynamic changes in healthy adult patients during different dental procedures and evaluate whether these changes were associated with patients' dental anxiety. Materials and Methods A convenience sample of 119 patients of both genders undergoing routine dental care participated in the study. Participants responded to the Arabic version of the modified dental anxiety scale (MDAS) and a self-structured questionnaire. Each patient had their blood pressure, heart rate, and oxygen saturation measured at three points: before, during, and after the dental procedure using an electronic sphygmomanometer. MDAS scores were categorized into no anxiety, mild, moderate or severe anxiety, while readings of heart rate and blood pressure were categorized into no change, increased or decreased and either “no change” or “increased” for oxygen saturation. Chi-square test was used to investigate the association between the study variables and a p value of < 0.05 was considered statistically significant. SPSS version 20 was used in the analysis. Results Mean ( ± standard deviation [SD]) of MDAS was 11.12 ( ±  3.9) an indicative of moderate dental anxiety. No changes in blood pressure, heart rate, or in oxygen saturation were observed on 39.5%, 54.6% and 97.5% among the study participants, respectively. Half of the participants avoided dental care, with dental anxiety being the main reason for that (26.1%). Pattern of dental visits was significantly associated with MDAS scores (p = 0.042). There were significant changes in blood pressure (p = 0.0003), heart rate (p = 0.01) but not in oxygen saturation (p = 0.33). Changes in blood pressure, heart rate, and oxygen saturation were not associated with dental anxiety p = 0.15, 0.10, and 0.99, respectively. Conclusion The results of this study indicate that the type of dental procedure may cause dental anxiety and cause hemodynamic changes. Therefore, close monitoring of patients with dental anxiety during the treatment is advised.


2022 ◽  
Vol 11 (6) ◽  
Author(s):  
Mahzad Yousefian ◽  
Ali Mohammadian Erdi ◽  
Negin Haghshenas

Background: Dilatation and curettage (D & C) is one of the relatively common surgeries among women. Familiarity with the analgesics, along with their different uses and specific characteristics, can help to determine the best and most appropriate drug to control pain in the patients. Objectives: This study aimed to compare the effects of ketofol, dexmedetomidine, and isofol in anesthesia of candidates for D & C. Methods: In this double-blind clinical trial, 150 candidates for D & C surgeries with ASA class 1 and 2 were included. Patients were randomly divided into three groups. The first group received ketamine + propofol, the second group received dexmedetomidine, and the third group received isofol (isoflurane + propofol). Any hemodynamic changes or respiratory disorders, including apnea or hypoventilation, drop in the level of blood oxygen saturation, and the need for respiratory support, were recorded and compared. Results: Hypoventilation was observed in 47 patients in isofol group, 18 in the dexmedetomidine group, and 42 in ketofol group. Also, 48 patients in the isofol group, eight in the dexmedetomidine group, and 33 in the ketofol group experienced apnea. Moreover, 17 patients in the dexmedetomidine group, 35 in the ketofol group, and eight in the isofol group experienced bradycardia. The rate of bradycardia was significantly higher in the dexmedetomidine group (70%) compared to the other two groups, and the rate of hypotension was significantly higher in the isofol group (P = 0.001). Conclusions: According to the results, dexmedetomidine was associated with fewer complications during general anesthesia in D & C surgery.


2021 ◽  
Vol 27 (4) ◽  
pp. 30-39
Author(s):  
Galina Zlatancheva ◽  
Tzenka Boneva ◽  
Kiril Karamfiloff ◽  
Dobrin Vasilev

Valvular diseases are a leading cause of morbidity, mortality and impaired quality of life in all over the world with different epidemiology. It is extremely important to know the hemodynamic changes for the proper development of a strategy for future interventions. The recent years shows progress in various methodologies of the field of surgery and interventional treatments of valvular diseases. In this section, we focus mainly on aortic regurgitation and its clinical significance.


Author(s):  
Д.С. Шилин ◽  
К.Г. Шаповалов

Актуальность: ожирение является одной из самых распространенных в мире причин развития сопутствующих заболеваний. у человека. В настоящий момент проблема СOVID-19 приводит к развитию и обострению сердечно-сосудистой патологии, сопровождающейся изменениями гемодинамики. Цель исследования - оценка зависимости изменений гемодинамики у пациентов с COVID-19 от алиментарно-конституционального ожирения. Методика. Исследование выполнено у 73 пациентов обоего пола с внебольничной полисегментарной вирусно-бактериальной пневмонией на фоне СOVID-19. Пациенты были разделены на 3 группы по индексу массы тела. В 1-ю группу вошли пациенты без избытка массы тела, 2-ю составили пациенты с избыточной массой тела, 3-ю - с ожирением 1 степени. Использован комплекс аппаратно-программного неинвазивного исследования центральной гемодинамики методом объемной компрессионной осциллометрии «КАП ЦГ осм- «Глобус» (Россия). Результаты. У пациентов с СOVID-19, страдающих ожирением I степени (30,0 - 34,9 кг/м2). выявлено статистически значимое снижение сердечного индекса относительно лиц с нормальной массой тела (на 10,8%, p=0,010). Пациенты с избытком массы тела имели более высокое диастолическое давление (на 10,5%, p=0,011) Показатель периферического сосудистого сопротивления у пациентов с СOVID-19 без избыточной массы тела был на 16.5% ниже, чем у пациентов с ожирением 1 степени. Удельное периферическое сопротивление сосудов у пациентов 1-й группы было на 10.3% меньше, чем у пациентов с избыточной массой тела. Податливость сосудистой стенки у пациентов 1-й группы была ниже на 22.5%, чем у пациентов с СOVID-19 и ожирением 1 степени. Заключение. У пациентов с внебольничной полисегментарной вирусно-бактериальной пневмонией на фоне СOVID-19 при ожирении 1 степени и избыточной массе тела выявляются значимые изменения гемодинамики относительно больных с нормальной массой тела. Background: Obesity is one of the most common causes of comorbidities worldwide. During the COVID-19 pandemic, development and increasing severity of cardiovascular disorders associated with hemodynamic changes has become increasingly relevant. Aims: The study aimed to evaluate the hemodynamic changes in COVID-19 patients depending on the severity of their exogenous constitutional obesity. Methods. 73 male and female patients with community-acquired polysegmental pneumonia of viral and bacterial origin associated with COVID-19 were enrolled in the study. The patients were allocated to three groups depending on the value of their body mass index (BMI). Group 1 included patients with normal body weight; Group 2 included overweight patients, and Group 3 included patients with grade 1 obesity (BMI 30.0-34.9 kg/m2). The measurements were performed using a technique of volumetric compression oscillometry on a non-invasive hemodynamic monitoring system KAP CG osm (Globus, Russia). Results. COVID-19 patients with grade 1 obesity (BMI 30.0-34.9 kg/m2) demonstrated a statistically significant 10.8% decrease in the cardiac index compared to patients with normal body weight (p=0.010). Overweight patients had 10.5% higher diastolic blood pressure (p=0.011). Peripheral vascular resistance (PVR) in COVID-19 patients with normal body weight was 16.5% lower than in patients with grade 1 obesity. PVR adjusted for body surface area in patients with normal body weight was 10.3% lower than in overweight patients. The compliance of the vascular wall in Group 1 patients was 22.5% lower than in COVID-19 patients with grade 1 obesity. Conclusion. COVID-19 patients with community-acquired, polysegmental pneumonia of viral and bacterial origin demonstrate significant hemodynamic changes compared to patients with normal body weights.


Morphologia ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 28-38
Author(s):  
T.P. Borysova ◽  
I.V. Tverdokhlib ◽  
O.Yu. Obolonska ◽  
A.S Korolenko ◽  
K.I. Diahovets ◽  
...  

Background. Kidney has protracted nephrogenesis and depend on hemodynamic changes on the highest level in support of natural transition to extrauterine circulation. Fetal communications like Ductus Arteriosus take part in the shunting from the aorta to the pulmonary artery. Increase of this shunting of the blood leads to hyperperfusion with hypoxic changes of some development systems of organs with protracted morphogenesis so like kidneys. Objective. To determine the features of postnatal morphogenesis of the kidneys in premature infants with a gestational age of 25 to 35 weeks on the background of an open ductus arteriosus. Methods. 21 autopsy material premature infant’s kidney which were fixed by 10%-formalin and then were subjected to the standard histological procedures. Slides were stained by hematoxylin and eosin. We used the complex of histological and morphometric methods. There were created 3-demenshional models of kidney’s fragments. We carried out biometrical and statistical analysis. Results. During our research it was determines that the changes of the volume of the functional parenchyma of the kidney and the diameter of the Ductus Arteriosus became in inverse relationship. The wider the duct the smaller the volume of the functional parenchyma because of atrophic and necrotic changes during the late stages of glomerulo- and tubulogenesis. These changes could be distinguished by the quantitative density of development on three germinate layers of the cortex of kidney. Сonclusion. Summing up, it determined the retardation of glomerulogenesis particularly superficial area of the cortex because of the opened Ductus Arteriosus.


2021 ◽  
pp. 1098612X2110670
Author(s):  
Rosario Vercellini ◽  
Paula G Blanco ◽  
Analía Arizmendi ◽  
Marisa Diez ◽  
Raúl Rodríguez ◽  
...  

Objectives The aim of this study was to evaluate two-dimensional and Doppler ultrasonographic changes of the ovary and uterus during estrus and the early post-estrus period in domestic cats. Methods Two-dimensional and Doppler ultrasonographic evaluations of the ovaries and uterus were performed in seven queens on days 1, 3 and 5 of estrus, and 5 days after estrus (AE5). Results On day 1, 5.4 ± 0.5 follicles of 2.1 ± 0.1 mm were detected progressively increasing in number and size up to day 5 and then decreased on AE5 ( P <0.05). A maximum follicular diameter of 4.1 ± 0.1 mm was achieved on day 5. Both during and after estrus, the uterus was generally hypoechoic compared with the surrounding tissues and delineated by a thin hyperechoic line corresponding to the serosa. In some animals, the uterine layers were distinguished during and after estrus. The blood flow waveforms of the intraovarian and uterine arteries were characterized by a systolic peak and diastolic flow extending throughout the remainder of the cardiac cycle to the next systole. In the uterine artery waveforms, the early diastolic notch was mild or absent during most estrous observations. The resistance index of the intraovarian arteries decreased up to day 5, and then increased on AE5 ( P <0.05). The resistance index of the uterine arteries was lower during estrus than in the post-estrus period ( P <0.05). Conclusions and relevance It is concluded that in the domestic cat, follicular number and diameter as well as ovarian and uterine blood flow changed during and immediately after estrus. Doppler ultrasound proved suitable to evaluate the hemodynamic changes involved in the cyclic remodeling of ovarian and uterine tissues that occurs during and after follicular growth in domestic cats.


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