RESUMO
We assessed the association of socioeconomic (SE) position with graft loss in a multicenter cohort of pediatric heart transplant (HT) recipients. We extracted six SE variables from the US Census 2000 database for the neighborhood of residence of 490 children who underwent their primary HT at participating transplant centers. A composite SE score was derived for each child and four groups (quartiles) compared for graft loss (death or retransplant). Graft loss occurred in 152 children (122 deaths, 30 retransplant). In adjusted analysis, graft loss during the first posttransplant year had a borderline association with the highest SE quartile (HR 1.94, p = 0.05) but not with race. Among 1-year survivors, both black race (HR 1.81, p = 0.02) and the lowest SE quartile (HR 1.77, p = 0.01) predicted subsequent graft loss in adjusted analysis. Among subgroups, the lowest SE quartile was associated with graft loss in white but not in black children. Thus, we found a complex relationship between SE position and graft loss in pediatric HT recipients. The finding of increased risk in the highest SE quartile children during the first year requires further confirmation. Black children and low SE position white children are at increased risk of graft loss after the first year.
Assuntos
População Negra , Transplante de Coração/etnologia , Hispânico ou Latino , Classe Social , População Branca , Adolescente , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Rejeição de Enxerto/epidemiologia , Transplante de Coração/mortalidade , Humanos , Lactente , Masculino , Período Pós-Operatório , Reoperação , Características de Residência , Medição de Risco , Fatores de Tempo , Falha de TratamentoRESUMO
REASONS FOR PERFORMING STUDY: The period between the onset of dystocia and its resolution has an important bearing on fetal outcome. There are few published data on which to base decisions regarding optimum management of cases in practice. OBJECTIVES: To evaluate and compare the effects of a coordinated dystocia management protocol (CDMP) with that of a previous protocol of random management on time to resolution and outcome in both an emergency dystocia referral population of mares (referred emergency cases: EM) and in a population of mares residing in hospital due to high risk pregnancy (HRP) concerns that then experience dystocia at parturition. METHODS: Retrospective study performed at a university hospital referral centre of cases presenting from 1991-2004 divided into Group 1 (pre-CDMP) and Group 2 (CDMP). RESULTS: Medical records of 71 cases with dystocia were retrieved and data recorded. For referred emergency cases (EM), time from hospital presentation to resolution decreased significantly by 32 min (P = 0.03) after institution of CDMP. Survival rate of mares at discharge was 86%. Survival of EM foals was low, with 10% in Group 1 and 13% in Group 2, surviving to discharge. For EM foals delivered alive, survival to discharge was 30% and 43% in Groups 1 and 2, respectively. Median Stage II was significantly (P < 0.001) different at 71 and 282 min for EM foals delivered alive vs. those not alive at delivery, respectively. Median duration of Stage II was also significantly (P < 0.001) different between EM foals surviving and not surviving to discharge, at 44 and 249 min, respectively. Survival of HRP dystocia foals to discharge was 79%. CONCLUSIONS: Although CDMP reduced the time from presentation at the hospital to resolution significantly for EM, total duration of Stage II for EM was unchanged, as was foal outcome. POTENTIAL RELEVANCE: Very early referral of mares with dystocia to referral centres with dystocia management protocols may improve fetal outcome as increased duration of Stage II in the horse affects fetal outcome negatively.
Assuntos
Animais Recém-Nascidos/crescimento & desenvolvimento , Parto Obstétrico/veterinária , Distocia/veterinária , Doenças dos Cavalos/mortalidade , Hospitais Veterinários/estatística & dados numéricos , Animais , Parto Obstétrico/métodos , Distocia/mortalidade , Distocia/terapia , Feminino , Doenças dos Cavalos/terapia , Cavalos , Gravidez , Resultado da Gravidez/veterinária , Gravidez de Alto Risco , Estudos Retrospectivos , Fatores de Risco , Análise de Sobrevida , Fatores de TempoRESUMO
OBJECTIVE: The study objectives were to determine posttransplant coronary artery disease (TxCAD) incidence, predisposing factors and optimal timing for retransplantation (re-Tx) in pediatric heart transplantation (Tx) recipients. BACKGROUND: The TxCAD limits long-term survival following heart Tx, with re-Tx being the primary therapy. Information on risk factors and timing of listing for re-Tx is limited in children. METHODS: The records of children who survived >1 year post-Tx at Loma Linda University were reviewed. Nonimmune and immune risk factors were analyzed. RESULTS: TxCAD was documented in 24 of 210 children. Freedom from TxCAD was 92 +/- 2% and 75 +/- 5% at 5 and 10 years' post-Tx, respectively. The TxCAD diagnosis was established at autopsy in 10 asymptomatic patients who died suddenly within nine months following the most recent negative angiograms. The remaining 14 children had angiographic diagnoses of TxCAD and had symptoms and/or graft dysfunction (n = 10) or positive stress studies (n = 4). Three of 14 died within three months after the diagnosis was made. Eleven patients underwent re-Tx within seven months of diagnosis; nine survived. Univariate and multivariate analyses showed that only late rejection (>1 year posttransplant) frequency (p = 0.025) and severity (hemodynamically compromising) (p < 0.01) were independent predictors of TxCAD development. Freedom from TxCAD after severe late rejection was 78 +/- 8% one year postevent and 55 +/- 10% by two years. CONCLUSIONS: Late rejection is an independent predictor of TxCAD. Patients suffering severe late rejection develop angiographically apparent TxCAD rapidly and must be monitored aggressively. Both TxCAD mortality and morbidity occur early; therefore, we recommend immediate listing for re-Tx upon diagnosis.
Assuntos
Doença das Coronárias/diagnóstico , Rejeição de Enxerto/diagnóstico , Transplante de Coração , Adolescente , Criança , Pré-Escolar , Doença das Coronárias/mortalidade , Doença das Coronárias/cirurgia , Feminino , Seguimentos , Rejeição de Enxerto/mortalidade , Rejeição de Enxerto/cirurgia , Humanos , Lactente , Recém-Nascido , Masculino , Reoperação , Fatores de Risco , Análise de SobrevidaRESUMO
OBJECTIVES: This study was undertaken to investigate the incidence of posttransplant recoarctation of the aorta, delineate the mode of presentation, identify risk factors that predict recoarctation and examine the results of intervention for posttransplant recoarctation. BACKGROUND: Patients with aortic arch hypoplasia require extended arch reconstruction at transplant, with an inherent possibility of subsequent recoarctation of the aorta. METHODS: This was a retrospective review of all children (age <18 years) who underwent cardiac transplantation over a 10-year period. Collected data included pretransplant diagnosis, details of the transplant procedure and posttransplant data including development of recoarctation of the aorta, interventions for recoarctation and the most recent follow-up assessment of the aortic arch. RESULTS: Two hundred eighty-eight transplants were performed on 279 children (follow-up = 1,075 patient-years; range 0 to 133 months, median 43.7). Thirty-two of 152 patients (21%) who underwent extended aortic arch reconstruction subsequently developed recoarctation. All but one patient developed recoarctation within 2 years after transplant; 87% were hypertensive at presentation. Of 30 patients who underwent intervention for recoarctation (balloon angioplasty [n = 26] and surgical repair of recoarctation [n = 4]), 26 (87%) have remained recurrence-free (follow-up = 133 patient-years; range 8 to 106 months, median 47). CONCLUSIONS: The high frequency of recoarctation after cardiac transplantation with extended aortic arch reconstruction mandates serial echocardiographic evaluation of the aortic arch. Patients typically present with systemic hypertension within the first two years after transplantation. Balloon angioplasty is a safe, effective and durable method of treatment.
Assuntos
Coartação Aórtica/etiologia , Transplante de Coração , Adolescente , Angioplastia com Balão , Aorta Torácica/anormalidades , Aorta Torácica/cirurgia , Coartação Aórtica/diagnóstico , Coartação Aórtica/diagnóstico por imagem , Coartação Aórtica/cirurgia , Coartação Aórtica/terapia , Criança , Pré-Escolar , Intervalo Livre de Doença , Ecocardiografia , Feminino , Seguimentos , Previsões , Transplante de Coração/efeitos adversos , Transplante de Coração/diagnóstico por imagem , Humanos , Hipertensão/diagnóstico , Hipertensão/etiologia , Incidência , Modelos Lineares , Masculino , Complicações Pós-Operatórias , Recidiva , Estudos Retrospectivos , Fatores de Risco , Segurança , Taxa de SobrevidaRESUMO
This study investigates the therapeutic efficacy of an anti-vascular cell adhesion molecule (VCAM)-1 monoclonal antibody (mAb), alone or in combination with an anti-leukocyte function-associated-1 mAb, in prolonging allograft survival in an ovine model of renal transplantation. The kinetics of VCAM-1 induction and expression during renal allograft rejection have also been studied. Sheep receiving anti-ovine VCAM-1 antibody demonstrated graft failure at a mean of 8.4 (+/- SD; 0.7) days after transplantation compared with 9.3 (+/- 0.5) days after transplantation for the group given control antibody and 7.7 (+/- 0.3) days after transplantation in the animals given the combined anti-VCAM-1 and anti-leukocyte function-associated-1 mAb therapy. VCAM-1 expression was detected in the allografts at day 1 after transplantation, with peak expression detected by day 5. Tubular expression of VCAM-1 was minimal, with sparse focal staining at the basolateral surfaces. The degree of mononuclear cell infiltrate in the allografts paralleled the progressive increase in VCAM-1 expression after transplantation, and there was no difference in the level of mononuclear cell infiltrate compared with controls.
Assuntos
Anticorpos Monoclonais/uso terapêutico , Sobrevivência de Enxerto/efeitos dos fármacos , Transplante de Rim , Antígeno-1 Associado à Função Linfocitária/imunologia , Molécula 1 de Adesão de Célula Vascular/imunologia , Animais , Combinação de Medicamentos , Rejeição de Enxerto/metabolismo , Rejeição de Enxerto/patologia , Rejeição de Enxerto/prevenção & controle , Rim/metabolismo , Rim/patologia , Período Pós-Operatório , Ovinos , Fatores de Tempo , Distribuição Tecidual , Molécula 1 de Adesão de Célula Vascular/metabolismoRESUMO
Early left ventricular (LV) remodeling following pediatric cardiac transplantation has not been described. To identify patterns and determinants of change in left ventricular mass and volume posttransplant, we studied 125 consecutive children who underwent cardiac transplantation between January 1, 1989 and July 31, 1993. Two-dimensional imaging-directed M-mode echocardiograms were studied weekly until 26 weeks post-transplant. LV mass and volume (indexed to BSA1.5) were measured. LV mass index increased until 3 weeks post-transplant, and then decreased. The mean decrement in LV mass index after 8 weeks post-transplant (relative to baseline) was significantly larger in patients with donor-recipient weight ratio > 1.5 compared with patients with donor-recipient weight ratio < or = 1.5 (-2.2 g/m3 compared with 33.4 g/m3, respectively, P < 0.01). Multiple linear regression was performed employing donor-recipient weight ratio, time since transplantation, ischemic time, and age at transplant as prognostic variables. Donor-recipient weight ratio (P < 0.0001), time since transplant (P < 0.01), and age at transplant (P = 0.02) were identified as independent predictors of change in LV mass index. Donor-recipient weight ratio (P = 0.001) and time since transplantation (P = 0.02) were independent predictors of change in LV volume index. There was an interaction between donor-recipient weight ratio and time since transplantation, suggesting that donor-recipient weight ratio has an independent effect as well as a time-dependent effect on change in LV mass and volume indices. LV mass and volume indices increased early posttransplant and then decreased; this pattern was temporally predictable, and dependent on donor-recipient weight ratio and age at transplant.
Assuntos
Transplante de Coração , Ventrículos do Coração/fisiopatologia , Função Ventricular Esquerda , Pré-Escolar , Feminino , Sobrevivência de Enxerto , Humanos , Lactente , Recém-Nascido , Masculino , Tamanho do Órgão , Fatores de TempoRESUMO
This study evaluated the procedural and long-term outcome of infants who underwent atrial septostomy while awaiting transplant. The results suggest that septostomy improved outcome in these patients although infants needing a transseptal perforation were at higher risk.
Assuntos
Cateterismo Cardíaco/métodos , Cateterismo/métodos , Átrios do Coração , Transplante de Coração , Síndrome do Coração Esquerdo Hipoplásico/cirurgia , Cuidados Pré-Operatórios/métodos , Cateterismo Cardíaco/efeitos adversos , Cateterismo Cardíaco/mortalidade , Cateterismo/efeitos adversos , Cateterismo/mortalidade , Causas de Morte , Terapia Combinada , Ecocardiografia , Seguimentos , Transplante de Coração/efeitos adversos , Transplante de Coração/mortalidade , Hemodinâmica , Humanos , Síndrome do Coração Esquerdo Hipoplásico/complicações , Síndrome do Coração Esquerdo Hipoplásico/diagnóstico , Síndrome do Coração Esquerdo Hipoplásico/mortalidade , Hipóxia/sangue , Hipóxia/etiologia , Lactente , Recém-Nascido , Seleção de Pacientes , Cuidados Pré-Operatórios/efeitos adversos , Cuidados Pré-Operatórios/mortalidade , Modelos de Riscos Proporcionais , Análise de Sobrevida , Resultado do TratamentoRESUMO
BACKGROUND: Cardiac retransplantation (re-CTx) in children is a controversial therapy, yet it remains the best treatment option to recipients with failing grafts. Our objective was to determine the incidence of re-CTx in a large pediatric population of recipients and evaluate the outcome of such therapy. METHODS: Between November 1985 and November 1999, 347 children underwent cardiac transplantation at the Loma Linda University Medical Center. Of these, 32 children were listed for re-CTx. Ten patients died while waiting, and 22 recipients underwent re-CTx. Median age at re-CTx was 7.1 years (range, 52 days to 20.1 years). RESULTS: Indications for re-CTx were allograft vasculopathy (n = 16), primary graft failure (n = 5), and acute rejection (n = 1). Two patients with primary graft failure underwent retransplantation within 24 hours of the first transplantation procedure while on extracorporeal membrane oxygenation support. Median time interval to re-CTx for the others was 7.2 years (range, 32 days to 9.4 years). Operative mortality for all cardiac re-CTx procedures was 13.6%. Causes of hospital mortality were pulmonary hypertension with graft failure (n = 2) and multiorgan failure (n = 1). Median hospital stay after re-CTx was 14.1 days (range, 6 to 45 days). There was one late death from severe rejection. Actuarial survival at 3 years for re-CTx was 81.9% +/- 8.9% compared with 77.3% +/- 2.6% for primary cardiac transplantation recipients (p = 0.70). CONCLUSIONS: Elective re-CTx can be performed with acceptable mortality. Although the number of patients undergoing retransplantation in this report is small and their long-term outcome is unknown, the intermediate-term survival after re-CTx is similar to that of children undergoing primary cardiac transplantation.
Assuntos
Transplante de Coração , Adolescente , Criança , Pré-Escolar , Feminino , Rejeição de Enxerto , Humanos , Lactente , Recém-Nascido , Masculino , Reoperação , Estudos Retrospectivos , Transplante Homólogo , Resultado do TratamentoRESUMO
BACKGROUND: Hypoplastic left heart syndrome is a lethal malformation. For the last 10 years, orthotopic cardiac transplantation has been our preferred treatment for infants with hypoplastic left heart syndrome. METHODS: One hundred seventy-six infants with hypoplastic left heart syndrome were entered into a cardiac transplant protocol between November 1985 and November 1995. Interventional procedures to stent the ductus arteriosus or enlarge the interatrial communication were performed in 8 and 35 patients, respectively. Thirty-four patients (19%) died during the waiting period, and 142 infants underwent cardiac transplantation. Age at cardiac transplantation ranged from 1.5 hours to 6 months (median, 29 days). The majority of grafts were oversized, and the median graft ischemic time was 273 minutes (range, 60 to 576 minutes). The implantation procedure used a period of hypothermic circulatory arrest ranging from 23 to 110 minutes (median, 53 minutes). Repair of other significant defects included interrupted aortic arch and total or partial anomalous pulmonary venous connection. RESULTS: There were 13 early and 22 late deaths. Patient actuarial survival at 1 month and at 1, 5 and 7 years was 91%, 84%, 76%, and 70% respectively. Half of the late deaths were due to rejection. Severe graft vasculopathy was confirmed in 8 patients. Retransplantation was performed in 5 patients for graft vasculopathy 4 and rejection 1. Lymphoblastic leukemia developed in 1 patient 3 years after cardiac transplantation. CONCLUSIONS: Cardiac transplantation can be performed in infants with hypoplastic left heart syndrome with good operative and intermediate-term results. Improved survival can be achieved with increased donor availability, better management of rejection, and control of graft vasculopathy.
Assuntos
Transplante de Coração , Síndrome do Coração Esquerdo Hipoplásico/cirurgia , Análise Atuarial , Doença das Coronárias/epidemiologia , Feminino , Seguimentos , Rejeição de Enxerto/epidemiologia , Rejeição de Enxerto/terapia , Transplante de Coração/efeitos adversos , Transplante de Coração/imunologia , Transplante de Coração/mortalidade , Humanos , Síndrome do Coração Esquerdo Hipoplásico/mortalidade , Imunossupressores/uso terapêutico , Incidência , Lactente , Recém-Nascido , Infecções/epidemiologia , Modelos Logísticos , Masculino , Complicações Pós-Operatórias/epidemiologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/epidemiologia , Qualidade de Vida , Reoperação , Fatores de TempoRESUMO
This study was designed to evaluate the haemostatic suture as a means of preventing haemorrhage from the hysterotomy in mares after caesarean section. At 2 university hospitals 1982-1994, 48 mares had caesarean section for dystocia, 10 as an elective, and 8 mares concurrently with colic surgery. The haemostatic suture was used in 31 of 66 mares (47%) and surgery period was significantly (P<0.05) shorter when it was not applied. Anaemia (PCV<30%) was recorded in 13 (22%) of 58 mares, excluding the colic group, and the haemostatic suture did not after this proportion of mares that had anaemia. Anaemia was 5 times more probable following caesarean section than vaginal delivery, evidence that bleeding from the hysterotomy is a serious and common complication of caesarean section in mares. Severe uterine haemorrhage was recorded in 3 mares that had an haemostatic suture (10%) and in 2 mares that did not (6%). The latter two mares died of haemorrhage. The suture, therefore did not eliminate post operative anaemia and severe uterine haemorrhage. If omitted, the hysterotomy should be closed with a full thickness pattern that is sufficiently tight to compress vessels in the uterine wall.
Assuntos
Cesárea/veterinária , Técnicas Hemostáticas/veterinária , Cavalos/cirurgia , Histerotomia/veterinária , Técnicas de Sutura/veterinária , Anemia/etiologia , Anemia/veterinária , Animais , Cesárea/efeitos adversos , Cólica/complicações , Cólica/cirurgia , Cólica/veterinária , Distocia/cirurgia , Distocia/veterinária , Feminino , Hematócrito/veterinária , Histerotomia/efeitos adversos , Hemorragia Pós-Operatória/complicações , Hemorragia Pós-Operatória/prevenção & controle , Hemorragia Pós-Operatória/veterinária , Gravidez , Técnicas de Sutura/normas , Suturas/veterinária , Hemorragia Uterina/complicações , Hemorragia Uterina/prevenção & controle , Hemorragia Uterina/veterináriaRESUMO
Data from 116 mares that had caesarean section or vaginal delivery at 2 university hospitals were analysed in 5 groups, as follows: dystocia corrected by caesarean section, Group DCS (n = 48); elective caesarean section, Group ECS (n = 10); caesarean section concurrently with colic surgery, Group CCS (n = 8); assisted vaginal delivery, Group AVD (n = 22); and controlled vaginal delivery under general anaesthesia, Group CVD (n = 28). Survival rate in all mares that had caesarean section, excluding Group CCS, was 88% (51/58). All mares in Group ECS survived and Group CCS had the lowest survival rate (38%). In 98 mares with dystocia, Groups DCS (15%) and AVD (14%) had significantly lower (P<0.05) mortality rates than Group CVD (29%). There were no differences between groups for duration of dystocia. The placenta was retained in 75 (65%) of 116 mares, and for a longer period following elective caesarean section than following assisted vaginal delivery. Multiple complications (> or = 3) were recorded in 6 mares in Group CVD but not in the other groups. Of the 102 foals delivered from 98 mares with dystocia, 11 (11%) were alive at delivery and 5 (5%) survived to discharge. Survival rate for foals was 38% in Group CCS, and 90% in Group ECS. Under conditions similar to those in this study, it is calculated that caesarean section is preferable to CVD if dystocia is protracted and great difficulty and trauma is involved, even if CVD allows delivery of the foal.
Assuntos
Cesárea/veterinária , Parto Obstétrico/veterinária , Distocia/veterinária , Doenças dos Cavalos/cirurgia , Doenças dos Cavalos/terapia , Anestesia Geral/mortalidade , Anestesia Geral/veterinária , Animais , Cesárea/efeitos adversos , Cesárea/mortalidade , Parto Obstétrico/efeitos adversos , Parto Obstétrico/métodos , Distocia/mortalidade , Distocia/cirurgia , Distocia/terapia , Feminino , Cavalos , Complicações do Trabalho de Parto/etiologia , Complicações do Trabalho de Parto/mortalidade , Complicações do Trabalho de Parto/veterinária , Placenta Retida/etiologia , Placenta Retida/veterinária , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/mortalidade , Complicações Pós-Operatórias/veterinária , Gravidez , Taxa de SobrevidaRESUMO
Sheets of mucosa from the jejunum of healthy horses were mounted in incubation chambers and bathed with Krebs-Ringer bicarbonate solution. Changes in tissue function and histologic appearance were compared after the following conditions: (1) control conditions for 30 minutes with 95% O2/5% CO2 in the gas phase; (2) same conditions as control, except incubation with superoxide dismutase (300 U/ml) during the last 18 minutes; (3) anoxia for 15 minutes with 95% N2/5% CO2, followed by reoxygenation for 15 minutes; (4) same conditions as 3, except incubation with superoxide dismutase during reoxygenation; and (5) anoxia for 30 minutes. Anoxia reduced the accumulation of radiolabeled L-alanine and caused cell swelling, as indicated by an increase in tissue water and tissue Na contents. Reoxygenation improved the tissue's ability to accumulate L-alanine, but tissue swelling continued after this treatment. Tissue Na content and L-alanine accumulation were restored to control values by reoxygenation with superoxide dismutase in the bathing medium. The grade of structural damage, as indicated by separation of epithelial cells from villi, was equally severe after all, but control, conditions. Superoxide dismutase had no effect on the tissue control conditions. Results of this study suggest that superoxide radicals are involved in the pathogenesis of reperfusion injury in equine jejunal mucosa and that this may be of clinical importance in cases of small intestinal strangulation obstruction.
Assuntos
Doenças dos Cavalos/tratamento farmacológico , Obstrução Intestinal/veterinária , Doenças do Jejuno/veterinária , Traumatismo por Reperfusão/veterinária , Superóxido Dismutase/uso terapêutico , Alanina/metabolismo , Animais , Técnicas de Cultura , Feminino , Cavalos , Hipóxia/patologia , Hipóxia/veterinária , Obstrução Intestinal/tratamento farmacológico , Isquemia/patologia , Isquemia/veterinária , Doenças do Jejuno/tratamento farmacológico , Jejuno/irrigação sanguínea , Masculino , Oxirredução , Traumatismo por Reperfusão/tratamento farmacológicoRESUMO
Sixty-eight horses with colic caused by small intestinal disease were allotted into 2 groups of 34 on the basis of recorded findings during exploratory celiotomy, necropsy, or response to medical treatment alone. Signalment, history, physical examination findings, and laboratory findings were compared between the group of horses with small intestinal obstruction and the group with duodenitis/proximal jejunitis. A significantly greater proportion of horses with duodenitis/proximal jejunitis were older than 2 years old (P less than 0.05). Differences in sex or breed distribution, or in seasonality of the 2 disease syndromes were not observed. Horses with duodenitis/proximal jejunitis had significantly greater signs of depression than those with small intestinal obstruction (P less than 0.01), and horses with small intestinal obstruction had significantly greater signs of abdominal pain (P less than 0.05). The mean heart and respiratory rates were significantly lower (P less than 0.01) and the volume of nasogastric reflux was significantly greater (P less than 0.05) in the group of horses with duodenitis/proximal jejunitis. Sections of small intestine that were palpable per rectum were less distended and there were more auscultable borborygmi in horses with duodenitis/proximal jejunitis, compared with those with small intestinal obstruction (P less than 0.05 and P less than 0.01). The group of horses with duodenitis/proximal jejunitis had lower mean plasma potassium and higher mean plasma bicarbonate concentrations (P less than 0.05) than the group with small intestinal obstruction. The mean nucleated cell count and total protein concentration of peritoneal fluid specimens were significantly less in the group with duodenitis/proximal jejunitis (P less than 0.01); however, these values were greater than normal.(ABSTRACT TRUNCATED AT 250 WORDS)
Assuntos
Duodenite/veterinária , Enterite/veterinária , Doenças dos Cavalos/diagnóstico , Obstrução Intestinal/veterinária , Doenças do Jejuno/veterinária , Animais , Cólica/diagnóstico , Cólica/veterinária , Diagnóstico Diferencial , Duodenite/diagnóstico , Enterite/diagnóstico , Cavalos , Obstrução Intestinal/diagnóstico , Doenças do Jejuno/diagnóstico , Estudos RetrospectivosRESUMO
A 4-day-old bull calf was admitted for treatment of a coxofemoral luxation. Closed reduction of the luxation was successfully performed on 2 occasions, and the limb was placed in an Ehmer sling. On both occasions, however, the luxation recurred. The luxation was reduced a third time with open reduction and caudal and distal relocation of the greater trochanter. Luxation did not recur after this treatment, and the calf grew and developed normally.
Assuntos
Doenças dos Bovinos/cirurgia , Luxação do Quadril/veterinária , Animais , Animais Recém-Nascidos , Parafusos Ósseos/veterinária , Bovinos , Luxação do Quadril/cirurgia , Masculino , RecidivaRESUMO
Cholelithiasis and/or obstructive biliary tract disease was diagnosed ultrasonographically in 8 horses, 5 to 15 years old. Ultrasonographic findings revealed greater than normal amount of hepatic parenchyma in the right side of the abdomen in 8 horses and in the left side in 3 horses. The echogenicity of the liver was greater than normal, and thick distended bile ducts were seen in all horses. Choleliths were imaged ultrasonographically in 6 horses. Subsequently, postmortem findings in 6 horses revealed periportal and intralobular fibrosis, moderate bile duct dilatation, proliferation, and cholestasis. One or more choleliths were found in all horses. Ultrasonographic findings accurately depicted the histologic changes in the hepatic parenchyma in horses with cholelithiasis.
Assuntos
Ductos Biliares Intra-Hepáticos/patologia , Colelitíase/veterinária , Doenças dos Cavalos/diagnóstico , Ultrassonografia/veterinária , Animais , Colelitíase/diagnóstico , Colestase Intra-Hepática/diagnóstico , Colestase Intra-Hepática/veterinária , Feminino , Cavalos , Masculino , Estudos RetrospectivosRESUMO
A 4.5-month-old Standard-bred filly was referred for evaluation of pigmenturia. Initially, the pigmenturia had resolved with the administration of antibiotics, only to recur after their withdrawal. A dark red urine sample contained numerous RBC, WBC, and gram-negative rods (Escherichia coli). Ultrasonography revealed the right kidney to be large, with multiple cystic structures and a dilated renal pelvis and calices. Cystoscopy revealed a large blood clot within the bladder and urine coming from the left ureteral opening. Urine was not observed coming from the right ureter. It was suspected that the primary infection within the urinary tract was coming from the right kidney, with secondary ureteral obstruction and cystitis. Trimethoprim-sulfamethoxazole treatment was initiated. However, acute depression and abdominal pain developed several days later, and the foal died before assistance could be provided. Necropsy revealed a large abscess that had eroded into the right ureter and aorta and had ruptured, resulting in acute blood loss and death. The location and extensive nature of the lesion would have precluded surgical intervention.
Assuntos
Abdome Agudo/veterinária , Abscesso/veterinária , Hematúria/veterinária , Doenças dos Cavalos/etiologia , Infecções Urinárias/veterinária , Abdome Agudo/complicações , Abdome Agudo/urina , Abscesso/complicações , Abscesso/urina , Animais , Feminino , Hematúria/etiologia , Cavalos , Infecções Urinárias/complicações , Infecções Urinárias/urinaRESUMO
Ten horses with clinical signs consistent with cholelithiasis were evaluated. Fever, icterus, mild intermittent colic, and weight loss were reported. Clinical laboratory abnormalities included leukocytosis, hyper-proteinemia, and hyperfibrinogenemia. Gamma glutamyltransferase and liver isoenzyme of lactate dehydrogenase activities also were high. Choleliths were observed via ultrasonography of the liver in 5 of the 8 horses evaluated, and increased echogenicity of the hepatic parenchyma and dilated bile ducts were observed in all horses. Seven horses were treated medically, 5 of which died or were euthanatized. Three horses were treated surgically, of which only 1 survived. Cholelith composition varied, but cholesterol, calcium bilirubinate, and mixed bile pigments were most commonly observed.
Assuntos
Colelitíase/veterinária , Doenças dos Cavalos/diagnóstico , Animais , Colelitíase/sangue , Colelitíase/diagnóstico , Colelitíase/patologia , Doenças dos Cavalos/sangue , Doenças dos Cavalos/patologia , Cavalos , Fígado/patologia , Estudos Retrospectivos , Ultrassonografia/veterináriaRESUMO
Two dimensional ultrasonographic evaluation of the iliac arteries and terminal portion of the aorta was utilized in 18 horses with histories of exercise intolerance or hindlimb lameness. A plaque or thrombus was imaged in one or more of these vessels in 5 horses. In 2 horses, the initial rectal examination findings were normal and the thrombus may have been missed without the use of diagnostic ultrasonography.
Assuntos
Doenças dos Cavalos/diagnóstico , Trombose/veterinária , Ultrassonografia/veterinária , Animais , Aorta Abdominal , Cavalos , Artéria Ilíaca , Coxeadura Animal/etiologia , Trombose/diagnósticoRESUMO
The efficacy of sternothyrohyoideus myectomy (SM) and staphylectomy as treatments for intermittent dorsal displacement of the soft palate was evaluated in 209 racehorses (126 Thoroughbreds, 83 Standardbreds). The 2 most common complaints were respiratory tract noise (75% of horses) and exercise intolerance (51% of horses). Stopping, defined as the inability to finish the race at racing speed, was reported in 40% of the horses. Endoscopy at rest revealed evidence of abnormal epiglottic anatomy (hypoplasia or flaccidity) in 51% of the horses and abnormal soft palate function in 36% of the horses. Race records were available for 149 (77 Thoroughbreds, 72 Standardbreds) horses. The sex distribution consisted of 38% sexually intact males, 20% geldings, and 42% females, with a mean age of 3.4 years. Sixty-nine horses underwent staphylectomy, with a mean of 16 weeks to first stage after surgery. Eighty horses underwent SM, with a mean of 10 weeks to first start. Sternothyrohyoideus myectomy was performed on significantly more (P < 0.05). Thoroughbreds than Standardbreds, and staphylectomy was performed on significantly (P < 0.0001; chi 2 = 39.56) more Standardbreds than Thoroughbreds. After surgery, most horses (74%) had no change in class; however, more moved up in class (17%) than down (9%). On the basis of comparison of earnings for 3 starts before surgery with that for 3 starts after surgery, successful outcome was obtained in 60% of the horses (35 Thoroughbreds, 13 Standardbreds) that received SM and in 59% of the horses (11 Thoroughbreds, 30 Standardbreds) that received a staphylectomy.(ABSTRACT TRUNCATED AT 250 WORDS)
Assuntos
Doenças dos Cavalos/cirurgia , Palato Mole/fisiopatologia , Palato Mole/cirurgia , Músculos Faríngeos/cirurgia , Animais , Cruzamento , Epiglote/anatomia & histologia , Tolerância ao Exercício , Feminino , Seguimentos , Cavalos , Masculino , Condicionamento Físico Animal , Sons Respiratórios/etiologia , Sons Respiratórios/veterinária , Estudos Retrospectivos , EsportesRESUMO
OBJECTIVE: To determine the prognosis in horses with cecocolic or cecocecal intussusception. DESIGN: Retrospective study. ANIMALS: 30 horses with cecocolic intussusception or cecocecal intussusception. PROCEDURE: Information on history, physical examination findings, and laboratory values was summarized from the medical records. Laboratory data included results of hematologic examination, serum biochemical analysis, and peritoneal fluid color, total nucleated cell count, and total protein concentration. A one-year follow-up via the telephone was used to determine long-term survival. RESULTS: Horses ranged from 7 months to 30 years old, but 63% were < or = 3 years. Standardbred horses were significantly overrepresented. Twenty-six horses had acute-to-subacute disease, and 4 had a chronic wasting disease. Cecal intussusceptions were suspected on the basis of finding a mass on abdominal palpation per rectum (14 of 24 horses) and positive ultrasonographic findings (2 of 3 horses). Thirteen horses with colic for > 1 day had scant, soft feces. Six horses died or were euthanatized without undergoing surgery, and 24 were treated surgically. Six of the latter horses were euthanatized during surgery because of peritonitis, rupture of the cecum, and irreducible intussusception. All 4 horses with a chronic disease were euthanatized because of irreversible changes in the cecum. Of the 18 horses allowed to recover from surgery, 15 survived long-term. Surgical treatments were reduction, with or without partial typhlectomy (6 horses), partial typhlectomy through a colotomy and reduction (6), reduction through a colotomy and partial typhlectomy (3), partial typhlectomy for a cecocecal intussusception (1) and an ileocolostomy (2). CLINICAL IMPLICATIONS: Cecal intussusception has a good prognosis with surgical correction without delay. Reduction through colotomy has a high success rate. Bypass by ileocolostomy should be used as a last resort.