pituitrin has been researched along with Heart-Defects--Congenital* in 17 studies
2 review(s) available for pituitrin and Heart-Defects--Congenital
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Effects of Vasopressin Infusion After Pediatric Cardiac Surgery: A Meta-analysis.
Vasopressin has been used to augment blood pressure; however, cardiovascular effects after cardiac surgery have not been well established. The primary objective of this study was to survey the current literature and quantify the pooled effect of vasopressin on hemodynamic parameters in children after pediatric cardiac surgery. A systematic review was conducted to identify studies characterizing the hemodynamic effects of vasopressin after pediatric cardiac surgery. Studies were assessed and those of satisfactory quality with pre- and post-vasopressin hemodynamics for each patient were included in the final analyses. 6 studies with 160 patients were included for endpoints during the first 2 h of infusions. Patients who received vasopressin infusion had greater mean, systolic, and diastolic blood pressures and lower heart rates at 2 h after initiation. 8 studies with 338 patients were included for the effects at 24 h. Patients who received vasopressin infusion had lower central venous pressures and decreased lactate concentrations 24 h after initiation. A subset analysis for children with functionally univentricular hearts found significant decrease in inotrope score and central venous pressure. A subset analysis for neonates found significant decrease in inotrope score and fluid balance. Vasopressin leads to decrease in heart rate and increase in blood pressure in the first 2 h of initiation. Later effects include decrease in inotrope score, central venous pressure, fluid balance, and in lactate within the first 24 h. Findings vary in neonates and in those with functionally univentricular hearts although beneficial effects are noted in both. Topics: Blood Pressure; Cardiac Surgical Procedures; Child, Preschool; Female; Heart Defects, Congenital; Heart Rate; Hemodynamics; Humans; Infant; Infant, Newborn; Infusions, Intravenous; Lactic Acid; Male; Postoperative Care; Vasoconstrictor Agents; Vasopressins | 2021 |
The Use of Cardiotonic Drugs in Neonates.
There is a distinct lack of age-appropriate cardiotonic drugs, and adult derived formulations continue to be administered, without evidence-based knowledge on their dosing, safety, efficacy, and long-term effects. Dopamine remains the most commonly studied and prescribed cardiotonic drug in the neonatal intensive care unit (NICU), but evidence of its effect on endorgan perfusion still remains. Unlike adult and pediatric critical care, there are significant gaps in our knowledge on the use of various cardiotonic drugs in various forms of circulatory failure in the NICU. Topics: Adrenal Cortex Hormones; Asphyxia Neonatorum; Cardiotonic Agents; Dobutamine; Dopamine; Heart Defects, Congenital; Humans; Hypotension; Infant, Newborn; Intensive Care Units, Neonatal; Milrinone; Neonatal Sepsis; Norepinephrine; Persistent Fetal Circulation Syndrome; Shock; Simendan; Vasoconstrictor Agents; Vasopressins | 2019 |
3 trial(s) available for pituitrin and Heart-Defects--Congenital
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Safety and Efficacy of Vasopressin After Fontan Completion: A Randomized Pilot Study.
Arginine vasopressin is a nonapeptide hormone with effects on intracellular water transport and arterial tone that is used in distributive shock and following cardiopulmonary bypass. We sought to evaluate the safety and efficacy of vasopressin infusion on hemodynamics and fluid balance in the early postoperative period after Fontan completion.. We conducted a randomized, double-blinded, placebo-controlled study of vasopressin infusion for 24 hours after cardiopulmonary bypass for Fontan completion. Patient characteristics, hospital outcomes, and measures of hemodynamic parameters, urine output, chest tube drainage, fluid balance, laboratory data, and plasma arginine vasopressin concentrations were collected at baseline and for 48 postoperative hours. Data were analyzed using mixed-effect regressions.. Twenty patients were randomized, 10 to vasopressin and 10 to placebo. Transpulmonary gradient (6.4 ± 0.5 vs 8.3 ± 0.5 mm Hg, P = .011) and chest tube drainage (23 ± 20 vs 40 ± 20 mL/kg, P = .028) for 48 hours after surgery were significantly lower in the vasopressin arm compared to placebo. Arginine vasopressin concentrations were elevated above baseline after surgery until 4 hours post cardiac intensive care unit admission in both arms, and higher in the vasopressin arm during postoperative infusion. No differences in sodium concentration, liver function, or renal function were noted between groups.. Vasopressin infusion after Fontan completion appears safe and was associated with reduced transpulmonary gradient and chest tube drainage in the early postoperative period. A larger multiinstitutional study may show further outcome benefit. Topics: Antidiuretic Agents; Child, Preschool; Dose-Response Relationship, Drug; Double-Blind Method; Female; Follow-Up Studies; Fontan Procedure; Heart Defects, Congenital; Humans; Incidence; Infusions, Intravenous; Male; Pilot Projects; Postoperative Care; Postoperative Complications; Prospective Studies; Treatment Outcome; United States; Vasopressins; Wisconsin | 2019 |
Vasopressin in Vasodilatory Shock for Both Left and Right Heart Anomalous Pediatric Patients After Cardiac Surgery.
Although the use of vasopressin has become commonplace in pediatric patients with vasodilatory shock after cardiac surgery, its efficacy and hemodynamic effects have not been systematically documented. Furthermore, previous studies were mainly limited patients with left heart anomalies. To date, the use of vasopressin in patients with right heart anomalies has not yet been reported. To clarify the hemodynamic effects of vasopressin on pediatric patients with vasodilatory shock after cardiopulmonary bypass, 70 consecutive patients, most of whom with right heart anomalies, were retrospectively analyzed in Fuwai Hospital from October 2013 to September 2015. Vasopressin was administered continuously at a dose of 0.0002 to 0.002 u/kg/min. Hemodynamics, urine output, and catecholamine vasopressor doses were compared before and after vasopressin initiation. Results showed that besides the significant increase in blood pressure at 2 h after vasopressin administration, the systemic vascular resistance index also prominently elevated from 894.3 ± 190.8 dyn/s to 1138.2 ± 161.4 dyn/s per cm per m, while the heart rate, right atrial pressure, pulmonary artery pressure had a trend of decline. Subsequently, the fluid requirement, the catecholamine vasopressor requirement both decreased and urine output increased. Lactate concentration showed a later remarkable decline at 12 h since vasopressin administration. All the 70 patients survived to hospital discharge. In conclusion, low dose of vasopressin administration was associated with great and timely hemodynamic improvement for pediatric patients with vasodilatory shock after cardiac surgery without any significant adverse effects. Topics: Adolescent; Blood Pressure; Cardiopulmonary Bypass; Child; Child, Preschool; Female; Heart Defects, Congenital; Hemodynamics; Humans; Infant; Infant, Newborn; Lactic Acid; Male; Postoperative Complications; Shock; Vasopressins | 2018 |
Pleural effusions, water balance mediators and the influence of lisinopril after completion Fontan procedures.
To investigate whether the duration of pleural drainage after Fontan completion operations can be influenced by postoperative lisinopril administration or can be related to water balance hormone levels.. In a prospective trial 21 patients scheduled for total cavopulmonary connection were randomized into two groups, with group I receiving lisinopril postoperatively, and group II receiving no angiotensin converting enzyme inhibitor. Plasma levels of antidiuretic hormone, renin and aldosteron were analyzed preoperatively and at four-time points postoperatively. Groups were comparable for age, preoperative saturation and pulmonary pressure, cardiopulmonary bypass time, cross-clamp time and preoperative hormone levels.. Mean duration of pleural drainage was comparable for both groups (group I: 9.6+/-8 days vs group II: 10+/-7 days; p=0.78). The hormone profiles in each group changed significantly at 1 and 24h postoperatively compared to preoperative values (p<0.05), with no significant differences between the treatment groups. The duration of pleural drainage correlated significantly with hormone levels at 24h postoperatively, and with longer bypass times. At multivariate analysis only aldosteron and antidiuretic hormone level at 24h came out as factors reaching significance for prolonged pleural drainage.. The Fontan completion induces significant changes in the levels of antidiuretic hormone, aldosteron and renin. Prolonged drainage correlates significantly with elevated levels of aldosteron, renin and antidiuretic hormone postoperatively, and with longer bypass time, but is not influenced by lisinopril. The eventual adjunct therapy with aldosteron antagonists warrants further study. Topics: Aldosterone; Angiotensin-Converting Enzyme Inhibitors; Biomarkers; Child; Child, Preschool; Drainage; Fontan Procedure; Heart Defects, Congenital; Humans; Infant; Lisinopril; Pleural Effusion; Postoperative Care; Postoperative Period; Prospective Studies; Renin; Vasopressins; Water-Electrolyte Balance | 2009 |
12 other study(ies) available for pituitrin and Heart-Defects--Congenital
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Perioperative Use of Pituitrin after Cardiac Defect Repair in Adult Patients with Severe Pulmonary Hypertension.
Vasopressin can constrict peripheral arteries without constricting the pulmonary artery. Theoretically, vasopressin is suitable for the perioperative treatment of pulmonary hypertension. Few studies have investigated the use of pituitrin (a substitute for vasopressin) after cardiac defect repair surgery. This study aimed to analyze the effect of pituitrin on hemodynamics and to determine whether pituitrin can be used after surgical repair in adult patients with pulmonary arterial hypertension-congenital heart disease (PAH-CHD).. A pulmonary artery catheter was used in all the patients for hemodynamic monitoring. Hemodynamic parameters were recorded before and at 0.5 h, 1 h, 6 h, 12 h and 24 h after pituitrin administration. The changes in the hemodynamic parameters before and after pituitrin use were analyzed through repeated measures analysis of variance.. A total of 110 patients with PAH-CHD underwent repair surgery; 23 patients were included in further analysis, including 11 with atrial septal defect, 9 with ventricular septal defect, and 3 with patent ductus arteriosus. Ten (43.5%) were men, with a mean age of 29.4 ± 6.8 years. Hemodynamic parameters before and after the oxygen test were as follows: radial artery oxygen saturation, 91.5% ± 4.4 vs. 97.9 ± 2.4%; pulmonary vascular resistance, 10.5 ± 1.8 Wood units (wu) vs. 5 ± 1.2 wu; systemic-pulmonary blood flow ratio (QP/QS), 1.1 ± 0.2 vs. 2.1 ± 0.9. With prolonged use, the systolic blood pressure of the radial artery increased significantly (P = 0.001), that of the pulmonary artery decreased significantly (P = 0.009), and RP/s decreased significantly (P < 0.001).. Pituitrin as an alternative to vasopressin can increase arterial pressure, decrease pulmonary artery pressure, and reduce the pulmonary artery pressure/arterial pressure ratio after repair surgery in adult patients with PAH-CHD. Topics: Adult; Cardiac Catheterization; Cardiac Surgical Procedures; Female; Heart Defects, Congenital; Humans; Hypertension, Pulmonary; Male; Pituitary Hormones, Posterior; Vasopressins; Young Adult | 2022 |
Acute Effects of Vasopressin Arginine Infusion in Children with Congenital Heart Disease: Higher Blood Pressure Does Not Equal Improved Systemic Oxygen Delivery.
The use of vasopressin has been increased in recent years in children after congenital heart surgery. However, there is limited information regarding its effects on cardiac output, systemic oxygen delivery, and myocardial energetics. The purpose of this study is to characterize the effects of vasopressin infusions on hemodynamics and systemic oxygen delivery in children with congenital heart disease. A retrospective, single-center study of patients with congenital heart disease who received vasopressin infusions in a pediatric cardiac intensive care unit between January 2019 and May 2020. The measured values collected for study were systolic and diastolic blood pressure, heart rate, arterial oxygen saturation as determined by pulse oximetry, arterial pH, arterial partial pressure of oxygen, arterial partial pressure of carbon dioxide, serum lactate, serum sodium, and renal and cerebral oximetry based on near-infrared spectroscopy. The calculated values for this study were the difference between arterial and NIRS oximetry, the reno-cerebral near-infrared spectroscopy gradient and the vasoinotrope score. A Wilcoxon signed-rank test was utilized to compare values of paired continuous variables before and after initiation of the vasopressin infusion. Correlations were assessed using Spearman correlation analyses and stepwise regressions were completed. A total of 26 vasopressin infusions among 20 unique patients were included in the final analyses. Of these 26 vasopressin infusions, 18 were in patients with biventricular circulation and 8 were in patients with functionally univentricular circulation. The median vasopressin infusion dose at initiation was 0.4 (0.1-1) milliunits/kg/min. For the entire cohort 2 h after the initiation of vasopressin, systolic blood pressure increased to 8.4 mmHg, p < 0.01, but no significant correlation was found to markers of systemic oxygen delivery. Similar results were obtained when only those with biventricular circulation were considered. Those with functionally univentricular circulation were not found to have any statistically significant rise in blood pressure. Vasopressin infusions appear to statistically significantly increase systolic blood pressure in children with congenital heart disease who have a biventricular but not functionally univentricular circulation. Even when an increase in systolic blood pressure is present, systemic oxygen delivery did not improve. Topics: Arginine; Blood Pressure; Cerebrovascular Circulation; Child; Heart Defects, Congenital; Hemodynamics; Humans; Oximetry; Oxygen; Retrospective Studies; Vasopressins | 2021 |
The incidence of vasoplegia in adult patients with right-sided congenital heart defects undergoing cardiac surgery and the correlation with serum vasopressin concentrations.
In adults with right-sided congenital heart disease, vasoplegia during and after cardiopulmonary bypass appears to be a frequent complication. The incidence of vasoplegia in the general adult and pediatric cardiac surgical population has been investigated, but the incidence in adult patients with right-sided congenital heart disease is unknown. Perioperative vasopressin levels during cardiac surgery have been studied in other cardiac surgical patients, but are not known in adults with right-sided congenital heart disease. The purpose of this study was to investigate the incidence of vasoplegia in adult patients undergoing right-sided cardiac surgical procedures requiring cardiopulmonary bypass and to determine the vasopressin response to cardiac surgery in this population.. Twenty patients were enrolled and demographic, hemodynamic, cardiopulmonary bypass, and use of vasoactive medication data were collected. In addition, perioperative serum vasopressin levels were measured. Sixty adult patients undergoing left-sided cardiac surgery served as controls.. The incidence of vasoplegia in the control patients was 10% and the incidence in the adult patients with right-sided congenital heart disease was 20%. Vasopressin levels were low at baseline (0.5 ± 0.5 pg/mL), increased slightly after induction of anesthesia (0.6 ± 0.6 pg/mL), increased after initiation of cardiopulmonary bypass (99.7 ± 168.2 pg/mL), and decreased after surgery (31.3 ± 43.6 pg/mL).. This study showed that the incidence of vasoplegia (20%) in patients with right-sided congenital heart disease undergoing cardiac surgery was double that of a population of patients undergoing aortic valve surgery (10%). Serum vasopressin concentration was not associated with vasoplegia in this population of congenital cardiac surgical patients. Topics: Adolescent; Adult; Aged; Aged, 80 and over; Biomarkers; Cardiac Surgical Procedures; Cardiopulmonary Bypass; Female; Heart Defects, Congenital; Hemodynamics; Humans; Incidence; Male; Middle Aged; Minnesota; Prospective Studies; Risk Factors; Time Factors; Treatment Outcome; Vasoplegia; Vasopressins; Young Adult | 2014 |
Presentation, diagnosis, and medical management of heart failure in children: Canadian Cardiovascular Society guidelines.
Pediatric heart failure (HF) is an important cause of morbidity and mortality in childhood. This article presents guidelines for the recognition, diagnosis, and early medical management of HF in infancy, childhood, and adolescence. The guidelines are intended to assist practitioners in office-based or emergency room practice, who encounter children with undiagnosed heart disease and symptoms of possible HF, rather than those who have already received surgical palliation. The guidelines have been developed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology, and are accompanied by practical Recommendations for their application in the clinical setting, supplemented by online material. This work does not include Recommendations for advanced management involving ventricular assist devices, or other device therapies. Topics: Adolescent; Algorithms; Angiotensin II Type 1 Receptor Blockers; Angiotensin-Converting Enzyme Inhibitors; Arrhythmogenic Right Ventricular Dysplasia; Biomarkers; Canada; Cardiomyopathies; Cardiotonic Agents; Catecholamines; Child; Child, Preschool; Combined Modality Therapy; Death, Sudden, Cardiac; Diagnosis, Differential; Diuretics; Echocardiography; Electrocardiography, Ambulatory; Evidence-Based Medicine; Heart Defects, Congenital; Heart Failure; Humans; Infant; Magnetic Resonance Imaging; Myocarditis; Myocardium; Prognosis; Risk Factors; Societies, Medical; Vasodilator Agents; Vasopressins | 2013 |
The impact of intraoperative vasopressin infusion in complex neonatal cardiac surgery.
Although recent advances have led to a better understanding of the beneficial effects of vasopressin on haemodynamics in paediatric cardiac surgery, not much information is available on the adverse effects. The objective of this study was to assess the impact of intraoperative vasopressin infusion on postoperative liver, renal and haemostatic function and lactate levels in neonates undergoing cardiac surgery.. We reviewed data from 34 consecutive neonates who had undergone complex cardiac surgery. The cohort was divided into two groups according to the use of vasopressin. Seventeen patients received vasopressin [vasopressin (+) group], and 17 patients did not [vasopressin (-) group].. No differences between the groups in terms of age, weight, cardiopulmonary bypass time, Risk Adjustment for Congenital Heart Surgery-1 score or the comprehensive Aristotle score were seen. No differences in the systolic or diastolic arterial blood pressures, heart rate or inotropic score upon admission to the intensive care unit were observed between the groups. No adverse effects on the aminotransferase levels were seen. The vasopressin (+) group had higher urea and creatinine levels. All the patients except one received peritoneal dialysis on the day of surgery. Thirteen patients in the vasopressin (+) group and 7 patients in the vasopressin (-) group continued to require peritoneal dialysis on postoperative day 5 (POD 5) (P = 0.04). The platelet count had decreased to a significantly lower level in the vasopressin (+) group on POD 5 [97 x 10(3)/mm(3) (range: 40-132 x 10(3)/mm(3))]. A tendency toward a high lactate concentration was seen in the vasopressin (+) group. In comparison with the vasopressin (-) group, the number of patients whose lactate level remained above 2.0 mmol/l was higher in the vasopressin (+) group on PODs 2 and 3 (17 patients vs 8 patients, P < 0.01 and 15 patients vs 7 patients, P = 0.01, respectively).. These findings suggest that the intraoperative use of vasopressin extends the period of peritoneal dialysis, reduces platelet counts and delays the recovery of the lactate concentration. Intraoperative vasopressin infusion should not be used routinely, but only in catecholamine-refractory shock. Topics: Alanine Transaminase; Aspartate Aminotransferases; Biomarkers; Blood Urea Nitrogen; Cardiac Surgical Procedures; Cardiopulmonary Bypass; Chi-Square Distribution; Creatinine; Drug Administration Schedule; Heart Defects, Congenital; Hemodynamics; Hemostasis; Humans; Hypotension; Infant; Infusions, Intravenous; International Normalized Ratio; Intraoperative Care; Kidney Diseases; Lactic Acid; Peritoneal Dialysis; Platelet Count; Platelet Transfusion; Retrospective Studies; Risk Factors; Time Factors; Treatment Outcome; Urea; Vasoconstrictor Agents; Vasopressins | 2012 |
Prognostic significance and correlations of neurohumoral factors in early and late postoperative period after Fontan procedure.
We focused on neurohumoral activity and its clinical correlates early and late after fenestrated, lateral intra-atrial total cavopulmonary connection (TCPC). Between 2007 and 2010, we prospectively studied 28 early and 48 late postoperative TCPC patients. Plasma concentrations of vasopressin, endothelin-1, proBNP, proANP were determined. We reviewed clinical data to determine relationship between neurohumoral activation and clinical status after TCPC. There was a significant influence of preoperative ventricular end-diastolic pressure (VEDP) (P=0.008) and vasopressin concentration (P=0.02) on the appearance of prolonged pleural effusions. A significant correlation between a combined predictor (a product of preoperative vasopressin concentration and VEDP) and time of effusions (r=0.59, P=0.006) was found. The mean respiratory equivalent of carbon dioxide at peak exercise (VE/VCO(2peak)) was significantly lower in patients operated before the second year of life compared to patients operated after two years of age (27.5±1.39 vs. 48.6±3.86; P=0.039). There was a significant correlation of endothelin-1 (r=0.84; P=0.008) and proBNP (r=0.88; P=0.02) concentrations with VE/VCO(2peak). The prolonged postoperative pleural effusions can be predicted based on the product of preoperative vasopressin concentration and VEDP. Exercise performance is related to the age at TCPC. Endothelin-1 and proBNP can be useful for identification of high-risk Fontan patients. Topics: Analysis of Variance; Atrial Natriuretic Factor; Biomarkers; Child, Preschool; Endothelin-1; Exercise Tolerance; Female; Fontan Procedure; Heart Defects, Congenital; Humans; Infant; Length of Stay; Logistic Models; Male; Natriuretic Peptide, Brain; Pleural Effusion; Poland; Prospective Studies; Risk Assessment; Risk Factors; Time Factors; Treatment Outcome; Vasopressins; Ventricular Pressure | 2011 |
Fontan operation, vasopressin and septic shock: a case report on the usual treatment in a peculiar setting.
Topics: Child, Preschool; Female; Fontan Procedure; Heart Defects, Congenital; Humans; Hypotension; Mediastinitis; Shock, Septic; Staphylococcal Infections; Surgical Wound Infection; Vascular Resistance; Vasoconstrictor Agents; Vasopressins | 2011 |
Levels of vasopressin in children undergoing cardiopulmonary bypass.
It is accepted treatment to give vasopressin to adults in postcardiotomy shock, but such use in children is controversial. Cardiopulmonary bypass is presumed to attenuate the normal endogenous vasopressin response to shock. We hypothesized that levels of vasopressin in children are altered by bypass, and that children having low endogenous levels perioperatively are more likely to develop hypotension, or require vasopressors.. Serial levels of vasopressin were assessed prospectively in children undergoing bypass at a single center.. Of 61 eligible patients, we enrolled 39 (63%). Their median age was 5 months. The mean level of vasopressin prior to bypass was 18.6 picograms per millilitre, with an interquartile range from 2.6 to 11.4. Levels of vasopressin peaked during bypass at 87.1, this being highly significant compared to baseline (p < 0.00005), remained high for 12 hours at a mean of 73.5, again significantly different from baseline (p = 0.002), were falling at 24 hours, with a mean of 28.1 (p = 0.04), and had returned to baseline by 48 hours, when the mean was 7.4 (p = 0.3). Age, gender, and the category for surgical risk had no influence on the levels of vasopressin. There was no statistically significant relationship between the measured levels and hypotension or the requirement for vasopressors, although a few persistently hypotensive patients had high levels subsequent to bypass. Higher levels correlated with higher levels of sodium in the serum (r(s) = 0.37, p < 0.00005), higher osmolality (r(s) = 0.37, p < 0.00005), and positive fluid balance (r(s) = 0.23, p < 0.008). Preoperative use of inhibitors of angiotensin converting enzyme, preoperative congestive cardiac failure, and longer periods of bypass predicted higher levels during the first eight postoperative hours.. Children do not have deficient endogenous levels of vasopressin following bypass, and lower levels are not associated with hypotension. Any therapeutic efficacy of infusion of vasopressin for post-cardiotomy shock in children is likely due to reasons other than physiologic replacement. Topics: Analysis of Variance; Biomarkers; Child; Child, Preschool; Coronary Artery Bypass; Female; Heart Defects, Congenital; Humans; Infant; Infant, Newborn; Linear Models; Male; Predictive Value of Tests; Prospective Studies; ROC Curve; Vasopressins | 2008 |
Fetal stress response to fetal cardiac surgery.
A deleterious fetal stress response, although not fully elucidated, may account for poor outcomes after experimental fetal cardiac surgery. We set out to characterize this fetal stress response and its potential role in placental dysfunction.. Fifteen ovine fetuses at gestational day 100 to 114 were placed on extracorporeal support for 30 minutes and were then followed 2 hours after cardiopulmonary bypass. Fetal plasma samples were analyzed for vasopressin, cortisol, and beta-endorphin levels, and correlated to fetal hemodynamics and placental gas exchange.. Unique temporal patterns of response were seen in release of the three stress hormones. Vasopressin demonstrated the most profound and early response followed by cortisol and beta-endorphin, the latter continuing to rise in the post-bypass period. A sharp rise in fetal mean arterial pressure and placental vascular resistance strongly correlated with rising vasopressin levels. Post-bypass deterioration of fetal gas exchange and hemodynamics correlated with the ensuing rise in cortisol and beta-endorphin. Rising fetal lactate levels correlated with elevations in all three stress hormones.. Fetal cardiopulmonary bypass leads to a profound, early rise in vasopressin concentrations that strongly correlates with placental dysfunction after fetal bypass. Vasopressin may play an important mechanistic role in pathogenesis of this placental dysfunction. Topics: Acid-Base Equilibrium; Animals; beta-Endorphin; Carbon Dioxide; Cardiopulmonary Bypass; Female; Fetal Distress; Fetoscopy; Heart Defects, Congenital; Hemodynamics; Hydrocortisone; Lactic Acid; Maternal-Fetal Exchange; Oxygen; Placenta; Pregnancy; Sheep; Sternum; Vascular Resistance; Vasopressins | 2008 |
Fetal stress response to fetal cardiac surgery. Invited commentary.
Topics: Animals; beta-Endorphin; Cardiopulmonary Bypass; Female; Fetal Distress; Fetoscopy; Heart Defects, Congenital; Hydrocortisone; Lactic Acid; Maternal-Fetal Exchange; Placenta; Pregnancy; Sheep; Sternum; Vasopressins | 2008 |
Significance of adrenomedullin under cardiopulmonary bypass in children during surgery for congenital heart disease.
To elucidate the effect of adrenomedullin (AM) on fluid homeostasis under cardiopulmonary bypass (CPB), we investigated the serial changes in plasma AM and other parameters related to fluid homeostasis in 13 children (average age, 28.2 months) with congenital heart disease during cardiac surgery under CPB. Arterial blood and urine samples were collected just after initiation of anesthesia, just before commencement of CPB, 10 min before the end of CPB, 60 min after CPB, and 24 h after operation. Plasma AM levels increased significantly 10 min before the end of CPB and decreased 24 h after operation. Urine volume increased transiently during CPB, which paralleled changes in AM. Simple regression analysis showed that plasma AM level correlated significantly with urinary vasopressin, urine volume, urinary sodium excretion, and plasma osmolarity. Stepwise regression analysis indicated that urine volume was the most significant determinant of plasma AM levels. Percent rise in AM during CPB relative to control period correlated with that of plasma brain natriuretic peptide (r = 0.57, P < 0.01). Our results suggest that AM plays an important role in fluid homeostasis under CPB in cooperation with other hormones involved in fluid homeostasis. Topics: Adrenomedullin; Atrial Natriuretic Factor; Cardiopulmonary Bypass; Child; Child, Preschool; Female; Heart Defects, Congenital; Homeostasis; Humans; Infant; Male; Natriuretic Peptide, Brain; Peptides; Vasopressins | 2001 |
Hormones and the pathogenesis of congestive heart failure: vasopressin, aldosterone, and angiotensin II. Further evidence for renal-adrenal interaction from studies in hypertension and in cirrhosis.
Topics: Aldosterone; Angiotensin Amide; Angiotensin II; Heart Defects, Congenital; Heart Failure; Humans; Hypertension; Kidney; Vasopressins | 1962 |