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Query: UMLS:C0018799 (heart disease)
 34,133 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Pulmonary wedge angiograms have been shown to reflect the severity of pulmonary vascular disease in congenital heart disease. Thirteen pulmonary wedge angiograms with a balloon occlusion catheter were performed in 11 adult patients (five normals and six with primary pulmonary hypertension [PPH]) and their features related to the resting pulmonary artery pressure (PAP). Individual cine frames from each study were selected and digitized with a computer-assisted operator-interactive program. By fitting densitometric profiles from the vessel segments, serial arterial cross-sectional diameters were calculated from mathematically derived points. There was a strong correlation between arterial taper (T, change in vessel caliber per unit axial length) and a power function of mean PAP with T = 0.304 X PAP-0.59, R = .91, P less than .001. These results demonstrate a correlation between an angiographically derived morphologic characteristic of the pulmonary vasculature (taper) and a hemodynamic parameter (PAP) in PPH. This offers a method to follow the course of the disease and the effects of drug therapy by assessing anatomic changes in the vessels.
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PMID:Automated morphologic evaluation of pulmonary arteries in primary pulmonary hypertension. 380 57

Intravascular thrombosis is postulated to cause or to contribute to the development of uncharacterized ("primary") pulmonary hypertension (PPH). To assess whether there is ongoing platelet-fibrin thrombosis in patients with PPH, we measured specific markers of platelet activation: platelet factor 4 (PF4) and beta-thromboglobulin (BTG); of fibrin formation: fibrinopeptide A (FPA); and of fibrin dissolution: fibrinopeptide BB1-42 (FPBB1-42) in peripheral venous blood from 10 patients with PPH (group 2). Results were compared with those of normal volunteers (group 1, n = 9) and with results from patients with pulmonary hypertension secondary to congenital heart disease (group 3, n = 7). Both groups 2 and 3 exhibited severe pulmonary hypertension (mean pulmonary arterial pressure = 62 +/- 20 mm Hg and 70 +/- 13 mm Hg, respectively). Mean level of PF4, BTG, FPA, and FPBB1-42 in patients with pulmonary hypertension, either primary or secondary to congenital heart disease, did not differ from levels in normal subjects. Within group 2, levels of platelet proteins and fibrinopeptides did not differ between patients who were classified clinically as having plexogenic arteriopathy vs thromboembolic disease. These observations suggest that a sustained state of abnormal platelet activation and fibrin formation or dissolution is not present in patients with established pulmonary hypertension.
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PMID:Platelet activation and fibrinopeptide formation in pulmonary hypertension. 825 43

Persistent or recurrent acute allograft rejection (AR) refractory to high-dose steroid therapy can adversely affect long-term outcomes of heart-lung (HLT), bilateral-lung (BLT), and single-lung (SLT) transplantations. The use of total lymphoid irradiation (TLI) for the management of refractory acute AR in six transplant recipients (two men, four women; mean age, 29.8 +/- 3.8 years) is detailed. There are two HLT (primary pulmonary hypertension [PPH], cystic fibrosis [CF]), 1 BLT (pulmonary hypertension postventricular septal defect repair), and 3 SLT (sarcoid, PPH, congenital heart disease with atrial septal defect) recipients. Refractory AR is defined as persistent rejection unresponsive to high-dose steroid therapy in all cases. The BLT and SLT recipients had at least two moderate and one mild AR events per patient. The HLT recipients had at least two moderate acute heart and one severe and one mild asynchronous acute lung rejection events per patient. A total of 800 cGy of total lymphoid irradiation (TLI) was administered over a 5-week period. Mild and transient leukopenia was the only observed side effect. The patient with PPH received TLI 313 days after HLT for recurrent AR at another institution and died of ARDS 4 weeks after completing TLI. The patient with CF received TLI 707 days after HLT and died 457 days after TLI of severe obliterative bronchiolitis (OB) with multiorgan failure. The patient with BLT received TLI 176 days after transplant and died 372 days after TLI of respiratory failure related to severe rejection. One patient with SLT received TLI 78 days after transplant and died 679 days after TLI of severe acute AR. The two remaining patients with SLTs have been free from acute AR for more than 4 years. The patient with sarcoidosis received TLI 37 days after SLT following a clinical rejection event and two severe acute AR events. He is alive with normal lung function 5 years later. The patient with PPH received TLI 108 days after SLT following three moderate acute AR events and is alive with stable OB 4 years later. These limited preliminary results suggest that TLI has merit for the treatment of intractable acute AR following HLT and lung transplantation.
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PMID:Total lymphoid irradiation for refractory acute rejection in heart-lung and lung allografts. 862 53

The purpose of this study was to estimate the risk of heart diseases in pregnancy. A total of 594 patients with heart diseases treated at the National Cardiovascular Center between 1982 and 1993 were evaluated. The heart diseases were classified into eight categories: congenital heart disease with or without pulmonary hypertension (8 cases (1%) and 219 cases (37%), respectively), mitral valve prolapse (38 cases (6%)), valvular heart disease with or without valve replacement (9 cases (2%) and 54 cases (9%), respectively), arrhythmia (222 cases (37%)), cardiomyotitis (15 cases (3%)) and miscellaneous (29 cases (5%)). Maternal risk was estimated from the incidence of maternal mortality and artificial preterm delivery. Maternal death within two years after delivery was observed in 7 cases (1.2%): 4 cases with cardiomyotitis (3 DCM and 1 HCH), 2 cases with heart disease with pulmonary hypertension (1 PPH and 1 PDA), and a single case with valvular heart disease with aortic valve replacement. Artificial preterm delivery was carried out in 32 cases (5.4%), most frequently in cases with congenital heart disease with pulmonary hypertension (6/8, 75%) which follows cardiomyotitis (4/15, 27%) and cases with valvular heart disease with valve replacement (2/9, 22%). Fetal risk was measured by the incidence of fetal death, fetal growth retardation and congential heart disease of the fetus. IUFD because of maternal heart disease was observed in 4 cases: two cases with valvular heart disease with valve replacement, a single case with Marfan's syndrome and a single case with DCM. Fetal growth retardation was observed in 59 cases, most frequently in cases with congenital heart disease with pulmonary hypertension and cases with valvular heart disease with valve replacement (3/8 (38%) and 3/9 (33%), respectively). Neonatal congenital heart disease was found in 8 of 228 neonates (3.5%) whose mothers also had congenital heart disease. It is therefore suggested that intensive medical care be recommended in pregnancies complicated with congenital heart disease with pulmonary hypertension or with valvular heart disease with valve replacement, which increase both maternal and fetal risk, and in pregnancies complicated with cardiomyotitis which significantly increases the maternal risk.
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PMID:[Analysis of maternal and fetal risk in 594 pregnancies with heart disease]. 893 9

The role of the cardiac catheterization for diagnosis and treatment of pulmonary hypertension (PH) is very important. When mean pulmonary artery pressure increased more than 25 mmHg, then PH is defined. But this is measured accurately only by the catheterization. And we can discriminate the etiology of PH clearly by pulmonary capillary wedge pressure (Ppcw) or intra-cardiac shunt (L to R) by blood oxygen saturation step-up, and both parameters are obtained by this method. The etiology of PH is diagnosed as left sided heart failure, if Ppcw is increased more than 13 mmHg. PH is produced by congenital heart disease (ASD, VSD, PDA etc.), when the oxygen saturation step-up is recognized. And PH is induced by any pulmonary disease or pulmonary thrombo-embolism or collagen disease or liver cirrhosis or PPH, if Ppcw is normal and no oxygen step-up is recognized.
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PMID:[The role of cardiac catheterization for diagnosis and treatment of pulmonary hypertension]. 1141 Nov 19

Based on data reported to the United Network for Organ Sharing through December 2001: 1. The number of heart transplant procedures performed in the United States increased slightly (< 1%) during each of the last 2 complete years from 2,187 transplants during 1999 to 2,197 transplants during 2000, followed by an additional increase in 2001 to 2,202 transplants. A more substantial increase was seen in the number of lung transplants performed: from 890 transplants in 1999 to 956 in 2000 (+7%) and an additional increase to 1,053 transplants in 2001 (+10%). Fewer than 30 heart-lung transplants were performed in 2001. Living-donor lung transplants comprised 2-3% of lung transplants performed between 1995-2001. 2. Pediatric recipients were more frequently on life support in the ICU; more likely to have an ischemia time of at least 4 hours; more often gender mismatched; and more often ABO-compatible rather than ABO-identical with the donor than adult recipients for all thoracic organ types. 3. The most common indication for transplant since 1996 in adult heart recipients was coronary artery disease (50%), followed closely by cardiomyopathy (42%). Among pediatric heart recipients, the 2 most common indications: cardiomyopathy (46%) and congenital heart disease (43%) accounted for approximately 90% of the transplants. The indications for lung transplants were more disparate. In adult lung recipients, the 4 most common diagnoses (COPD - 42%, IPF - 17%, CF - 15% and A1A - 9%) encompassed more than 80% of the transplants. More than half of the pediatric lung transplants were performed in recipients with CF. The 3 most frequently cited indications for adult heart-lung transplant recipients (Eisenmenger's Syndrome, other congenital heart diagnoses and PPH) accounted for greater than 75% of the transplants. 4. Approximately 30-35% of adult heart transplants since 1999 have been performed in patients who were Status 1A. For pediatric transplant recipients, Status 1A comprised 60-70% of the transplants. 5. The one-year survival rate for transplants performed during the first three-quarters of 2001 was 85% for both adult and pediatric heart transplant recipients and 77% for both adult and pediatric recipients of lung transplants. For adult heart-lung transplants performed during 2000, the one-year survival rate was 69%. 6. The long-term patient survival rates were: 39% for adult heart recipients and 50% for pediatric heart recipients at 12 years; 18% at 11 years for adult lung recipients and 31% at 9 years for pediatric lung recipients; and 24% at 11 years for adult heart-lung recipients and 21% at 8 years for pediatric heart-lung recipients. 7. Drug-treated rejection and drug-treated infection were reported to occur before discharge in approximately 20-40% of transplant recipients, with the exception of pediatric lung and heart-lung recipients, with rates varying by organ and age group. Drug-treated infections were reported before discharge in more than 60% of pediatric lung recipients and approximately half of pediatric heart-lung recipients. 8. Approximately 60% of adult heart recipients and 70% of pediatric heart recipients were hospitalized at least once during the first 3 years following their transplant.
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PMID:Thoracic organ transplantation in the US. 1297 35

The definition of proper patient selection criteria remains a prominent item in constant need of attention. While the concept of gathering evidence in order to determine practice continues to be hopelessly ambiguous, it can never be emphasized too much that these univariate results are just a first foray into analysing predictors of survival; all following results should be regarded and interpreted in this perspective. HEART TRANSPLANT SURVIVAL: The 3-year survival rate for heart transplant recipients under age 16 was 83% versus 72% for adult recipients. Acutely retransplanted adult heart recipients had a 3-year survival rate of 36% compared with 72% for recipients of a first heart allograft. Patients suffering from DCM had the best survival rates at 3 years (74%) compared with patients suffering from CAD (70%) or from another end-stage heart disease (67%). With advancing age of the adult recipient, the mortality risk increased. Patients aged 16-40 had a 3-year survival rate of 77%, compared with 74%, 70% and 61% for transplant recipients aged 41-55, 56-65 and over age 65, respectively. The 3-year survival rates for adult recipients transplanted with an heart allograft from a donor aged under 16 or between 16-44 were 78% and 74%, compared with 66% and 63% for donors aged 45-55 and over 55, respectively. The 3-year survival rates for recipients of hearts with cold ischemic times under 2 hours, 2-3, 3-4, 4-5, 5-6 and more than 6 hours were 74%, 75%, 70%, 65%, 54% and 40%, respectively. Transplanting a female donor heart into a male recipient was associated with the worst prognosis: the 3-year survival rates were 73%, 71%, 66% and 76%, respectively, for the donor/recipient groups male/male, male/female, female/male and female/female, respectively. When the donor-to-recipient body weight ratio was below 0.8, the 3-year survival rate was 64%, compared to 72% for weight-matched pairs and 74% for patients who received a heart from an oversized donor (p=0.004). Better survival rates were obtained for better HLA-matched transplants. The 3-year survival rates were 75%, 89%, 78%, 78%, 69%, 72%, and 71% for HLA-A,-B,-DR zero, 1, 2, 3, 4, 5 and 6 mismatched groups, respectively (p=0.04). Survival was significantly associated with the CMV serologic status of the donor and recipient; the 3-year survival rates were: D+/R+, 71%; D+/R-, 69%; D- R-, 76%; and D-/R+, 76% (p=0.04). Patients in an ICU had a 3-year survival rate of 62%, compared to 72% for patients in a general ward and 74% for outpatients (p<0.0001). Patients that were on a VAD and there-upon transplanted had a 3-year survival rate of 65%, compared to 73% for patients without a VAD (p=0.004). Being on a ventilator was a major risk factor for death after transplantation; patients on ventilator support at the time of the transplant had a 3-year survival rate of 52% compared to 73% for the other patients (p<0.0001). LUNG TRANSPLANT SURVIVAL: The 3-year survival rate for children (73%) appeared to be better than the adult rate (61%; p=0.8). Adult lung transplant survival was significantly worse in the case of a repeat lung transplant; a 3-year retransplant survival rate of 42% was obtained compared with 61% for first transplants (p=0.049). With respect to the underlying end-stage lung disease, no statistically significant difference in long-term survival could be detected in this cohort. The 3-year survival rates were: 62% for COPD/Emphysema, 70% for CF, 58% for IPF, 64% for Alpha-1 ATD and 56% for PPH (p=0.2). Our data demonstrated no effect of the recipient's age on long-term lung transplant survival, except for 2 senior patients in this cohort. At 3-years the survival rates for recipients aged 16-40, 41-55 and 56-65 were 65%, 60% and 62%, respectively (p=0.05). The 3-year survival rates for transplants performed with lungs from donors aged under 16, 16-44, 45-55 and over 55 was 57%, 64%, 55% and 62%, respectively (p=0.1) No association between the duration of cold ischemic time and 3-year survival was observed; under 3 hours, 3-4, 4-5, 5-6 and over 6 hours of ischemia resulted in 3-year survival rates of 53%, 59%, 64%, 68% and 57%, respectively (p=0.2). Early posttransplant outcome tended to be better for gender-matched transplants, while transplanting a female donor lung into a male recipient was associated with the worst prognosis. The 3-year survival rates were 65% for male/male, 63% for male/female, 48% for female/male and 61% for female/female (p=0.009). No effect of donor-to-recipient weight match was observed in this Eurotransplant cohort; when the donor-to-recipient weight ratio was below 0.8, the 3-year survival rate was 57%, compared with 59% for weight-matched pairs and 64% for patients who received a lung from an oversized donor (p=0.5). Long-term survival after lung transplantation was influenced by HLA matching. The 3-year survival rates were 100%, 68%, 70%, 65%, 54% and 55% for the HLA-A,-B,-DR 1, 2, 3, 4, 5 and 6 mismatched groups, respectively (p=0.06). A donor CMV+ and recipient CMV- match was a risk factor for long-term mortality, with 3-year survival rates of 56% for D+/R+, 55% for D+/R-, 71% for D-/R- and 62% for D-/R+ transplants (p=0.046). En-bloc transplantation of both lungs yielded worse early results, but the 3-year survival rates for patients who underwent single (60%), bilateral sequential double lung (63%) and en-bloc double lung transplantation (56%) were not different (p=0.2). Ventilator dependency was associated with a significantly reduced survival at 3 years. Patients on a ventilator support at the time of the transplant had a 3-year survival rate of 48% compared with 63% for other patients (p=0.006).
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PMID:Three-year survival rates for all consecutive heart-only and lung-only transplants performed in Eurotransplant, 1997-1999. 1538