Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0344329 (collapse)
 28,634 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In patients with mitral stenosis the main and early changes in the pulsation curve of the right jugular vein consist in an elevation of the y-collapse. The height of the y-collapse correlates with the degree of venous congestion in the lungs, i.e. a parallelism exists between the signs of venous congestion in the pulmonary and general circulation systems. The degree of venous congestion in the lungs of patients with mitral stenosis varies with the phases of respiration. An elevation of the v-collapse in mitral stenosis cases is observed at early stages of the disease, simultaneously with the disorders in venous circulation in the upper lobes. The mechanism of circulatory disorders in the veins of the general circulation system may be due to not only pulmonary hypertension and right ventricular insufficiency, but also to the changes in the intrathoracic pressure secondary to the changes in pulmonary parenchyma.
 ...
PMID:[Effect of the respiratory phases on the right jugular vein pulsation curve and pulmonary hemodynamics in mitral valve stenosis]. 85 70

A woman of 38 was admitted for urgent surgery of severe mitral stenosis causing pulmonary oedema. Echocardiography showed a pericardial effusion with apparent distortion and collapse of the left ventricle. Urgent drainage of the effusion before mitral valve surgery led to an improvement in cardiac output with no detectable change in right heart pressures.
 ...
PMID:Severe rheumatic mitral stenosis with pericardial effusion causing left ventricular tamponade. 155 47

The hypoplastic left heart syndrome, which characteristically presents in the first few hours of life with cardiovascular collapse, is treated by reconstructive surgery (Norwood's procedure) beginning in the neonatal period. If untreated, more than 95% of infants with this malformation die within the first month of life. The case described involves the development of increasing cyanosis 7 weeks following bilateral superior vena caval-pulmonary artery (SVC-PA) anastomosis in an infant born with a hypoplastic left heart (including aortic and mitral valve stenosis) and an anatomic variant of bilateral superior vena cavae. The use of Tc-99m MAA proved efficacious in quantitating the differential perfusion to each lung, establishing the site of a postoperative stenosis in an anastomotic channel, and documenting systemic perfusion, thus confirming the right-to-left shunt from the superior vena cava to the systemic circulation that resulted in increasing cyanosis.
 ...
PMID:Use of Tc-99m MAA in determining the etiology of increasing cyanosis following SVC-PA anastomosis for the hypoplastic left heart syndrome. 186 52

We report the case of a 66-year-old woman with moderate-to-severe mitral stenosis who survived anaphylactic shock due to traumatic rupture of a hydatid liver cyst. Hydatid liver disease was diagnosed by ultrasound, and necessary life-support measures were taken, with hydration to restore electrolytic balance and vasoactive amines. The suspected diagnosis of hydatid liver cyst rupture was confirmed surgically. We discuss the immunologic mechanisms of anaphylactic shock and its treatment, and emphasize that Echinococcus liver cysts should be suspected in cases of anaphylaxis of uncertain etiology. Acute vascular collapse, generalized cutaneous erythema, urticaria and edema are suggestive of anaphylaxis arising from hydatidosis, particularly when patients reside in endemic areas.
 ...
PMID:[Anaphylactic shock caused by the rupture of an unknown hepatic hydatid cyst]. 978 Jul 72

Cesarean section was performed under general anesthesia in a 38-year-old patient with congestive heart failure due to severe mitral stenosis. During surgery, pulmonary hypertension, right ventricular distension and the dissociation of PETCO2 and PaCO2 were observed. However, pulmonary thromboembolism (PTE) was proved after the operation when she developed severe hypotension in the intensive care unit. Although she recovered once from circulatory unstability with the use of percutaneous cardiopulmonary support (PCPS) and she could be weaned from PCPS at the 4th postoperative day, she died from tracheal bleeding and recurrent cardiopulmonary collapse 22nd day after the surgery. It should be noted that the increasing dissociation of PETCO2 and PaCO2 may be an early sign of PTE even in a patient with severe mitral stenosis and pulmonary hypertension.
 ...
PMID:[A case of delayed diagnosis of pulmonary thromboembolism in a patient with mitral stenosis undergoing cesarean section]. 1459 77

A 76-year-old man was admitted to our hospital because of surgical treatment for mass in the left atrium(LA). Echocardiography and computed tomography(CT) revealed mobile mass in LA which had stalk at the left atrial appendage. It was difficult to distinguish myxoma from thrombus. LA mass has risk of sudden circulatory collapse and systemic emboli, so it is indicated for emergent operation. Mass resection with appendage was performed through the transseptal superior incision using cardiopulmonary bypass. Pathological diagnosis was thrombus. Most of LA thrombus were complicated with mitral stenosis, LA thrombus without mitral disease is rare. A few authors reported the useful of CT and echocardiography, but we could not lead to precise diagnosis from preoperative image.
 ...
PMID:[Left atrial thrombus without mitral disease; report of a case]. 1467 25

Mitral stenosis during pregnancy poses a substantial risk, both to the mother and foetus. Percutaneous mitral valvuloplasty performed during pregnancy has been associated with an excellent short-term outcome, with reduction of both maternal and foetal complications. We report a case of percutaneous mitral valvuloplasty in a pregnant woman with severe rheumatic mitral stenosis and impending pulmonary oedema. The procedure was performed through a right femoral vein approach, employing the multitrack technique, using 2 balloons (20 and 18 mm). Inadvertently, the procedure was complicated by cardiac tamponade. Despite a stable haemodynamic condition, and absence of echocardiographic signs of chamber collapse, haemodynamic monitoring revealed an equal value for right atrial, left atrial and left ventricular end-diastolic pressure. Immediately, adequate pericardiocentesis was performed and post-procedural echocardiography revealed a mitral valve area of 2.0 cm2, with no mitral regurgitation. Eventually, the pregnancy was continued and ultimately, the patient gave birth to a healthy full-term baby.
 ...
PMID:Cardiac tamponade after mitral valvuloplasty in a pregnant woman. 2130 79

Large left atrial mural thrombi in the absence of mitral valve stenosis have been reported rarely in the literature. It is even rarer without history of atrial fibrillation (AF). These masses can cause systemic embolization and sudden circulatory collapse when they obstruct the mitral valve. We are presenting a case of giant, free floating ball thrombus, detected after aortic valve replacement for mixed aortic valve disease. It was found immediately before separation from cardiopulmonary bypass by transoesophageal echocardiography and was successfully removed. A ball thrombus without mitral valve disease and AF with aortic valve disease is not yet reported in the literature.
 ...
PMID:Free-floating giant left atrial ball thrombus with aortic valve disease--a rare entity and a near miss. 2234 91

Pheochromocytoma during pregnancy is extremely rare. Its clinical manifestation includes hypertension with various clinical presentations, possibly resembling those of pregnancy-induced hypertension. The real challenge for clinicians is differentiating pheochromocytoma from other causes of hypertension (preeclampsia, gestational hypertension, and pre-existing or essential hypertension), from other cause of pulmonary edema (preeclampsia, peripartum cardiomyopathy, stress or Takotsubo cardiomyopathy, pre-existing cardiac disease [mitral stenosis], and high doses betamimetics), and from other causes of cardiovascular collapse (pulmonary embolism, and amniotic fluid embolism). Although, several cases of pheochromocytoma during pregnancy have been published, fetal and maternal mortalities due to undiagnosed cases are still reported. We report a case of a patient whose delivery by cesarean section was complicated by severe hemodynamic instability resulting in a cardiac arrest. Later on, pheochromocytoma was suspected based on computed tomography (CT) scan findings. Diagnosis was confirmed with special biochemical investigations that showed markedly elevated catecholamines in urine and metanephrines in serum, and later by histopathology of the excised left adrenal mass. This case illustrates the difficulty of diagnosing pheochromocytoma in pregnancy and raises the awareness to when this rare disease should be suspected.
 ...
PMID:Cardiorespiratory crisis at the end of pregnancy: a case of pheochromocytoma. 2418 Jan 71

Severe mitral regurgitation (MR) following balloon mitral valvotomy (BMV) needing emergent mitral valve replacement is a rare complication. The unrelieved mitral stenosis is compounded by severe MR leading to acute rise in pulmonary hypertension and right ventricular afterload, decreased coronary perfusion, ischemia and right ventricular failure. Associated septal shift and falling left ventricular preload leads to a vicious cycle of myocardial ischemia and hemodynamic collapse and needs to be addressed emergently before the onset of end organ damage. In this report, we describe the pathophysiology of hemodynamic collapse and peri-operative management issues in a case of mitral valve replacement for acute severe MR following BMV.
...
PMID:Emergency mitral valve replacement for acute severe mitral regurgitation following balloon mitral valvotomy: pathophysiology of hemodynamic collapse and peri-operative management issues. 2440 4


1 2 Next >>