Optimal strategies for carrier screening and prenatal diagnosis of α- and β-thalassemia

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ERCP in the Very Elderly: Outcomes Among Patients Older than Eighty

Life expectancy is rising, which is increasing the demand for endoscopic retrograde cholangiopancreatography (ERCP) in the elderly. Little data, particularly on complex procedures, has been reported. In this study, we compare the differences in the success and complications in ERCP between patients older and younger than 80 years old. We used a large endoscopic database reviewing the ERCPs performed and 30-day complications addressing age, degree of difficulty of procedures, and complications. A total of 2,606 patients underwent 3,924 ERCPs. Six hundred and twenty-eight were octogenarians undergoing 728 procedures. Mean age was 83.5 years in the octogenarian group and 59.0 years in the younger group. The endoscopic success rate was lower in octogenarians (96.9 vs. 98.3%, P = 0.004). Overall, complication rates between both groups was significantly less in older compared to younger patients (1.64 vs. 3.50%, P = 0.006). Complication and failure rates were higher as procedure complexity increased in all patients. ERCP in the elderly carries a high degree of success with low complication rates. Elderly patients carry similar risks of bleeding and perforation and a lower risk of pancreatitis.     

Does pregnancy accelerate the rate of progression of diabetic retinopathy?

Pregnancy may be associated with a number of ocular changes, including the development of new ocular conditions or modifications of existing conditions. The most common ocular condition modified by pregnancy is diabetic retinopathy. Pregnancy is associated with an increased risk of development and progression of diabetic retinopathy. The factors associated with its progression include the pregnant state itself, duration of diabetes, amount of retinopathy at conception, blood glucose control, and the presence of coexisting vascular disease. Although the rate of regression of diabetic retinopathy at the end of pregnancy or the postpartum period is high, careful monitoring of these patients is necessary to optimize both the vision and pregnancy outcomes.     

Disproportionately high semen shedding of HIV is associated with compartmentalized cytomegalovirus reactivation

Semen transmission of human immunodeficiency virus (HIV) drives the global pandemic. HIV loads are generally lower in semen than in blood, but semen loads may be disproportionately high in a subgroup of men. HIV loads in semen exceeded those in blood in 9 (35%) of 26 of antiretroviral therapy-naive men, and disproportionately high shedding was strongly associated with compartmentalized semen cytomegalovirus (CMV) reactivation (odds ratio [OR], 10.5; P<.01). Overall, 17 of 26 participants were shedding CMV in semen. Semen levels of HIV and CMV were closely correlated (r=0.5; P<.01), independently of blood HIV load and CD4(+) T cell count. Prevention of CMV reactivation warrants further study as a possible strategy to reduce semen shedding of HIV.     

A prospective study of reasons for prolonged hospitalizations on a general medicine teaching service

BACKGROUND: Delays in the care of hospitalized patients may lead to increased length of stay, iatrogenic complications, and costs. No study has characterized delays among general medicine inpatients in the current prospective payment era of care. OBJECTIVE: To quantify and characterize delays in care which prolong hospitalizations for general medicine inpatients. DESIGN: Prospective survey of senior residents. SETTING: Urban tertiary care university-affiliated teaching hospital. PARTICIPANTS: Sixteen senior residents were surveyed regarding 2,831 patient-days. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Data were collected on 97.6% (2,762) of patient-days eligible for evaluation. Three hundred seventy-three patient-days (13.5% of all hospital days) were judged unnecessary for acute inpatient care, and occurred because of delays in needed services. Sixty-three percent of these unnecessary days were due to nonmedical service delays and 37% were due to medical service delays. The vast majority of nonmedical service delays (84%) were due to difficulty finding a bed in a skilled nursing facility. Medical service delays were most often due to postponement of procedures (54%) and diagnostic test performance (21%) or interpretation (10%), and were significantly more common on weekend days (relative risk [RR], 1.49; P=.02). Indeed, nearly one fourth of unnecessary patient-days (24% overall, 88 patient-days) involved an inability to access medical services on a weekend day (Saturday or Sunday). CONCLUSIONS: At our institution, a substantial number of hospital days were judged unnecessary for acute inpatient care and were attributable to delays in medical and nonmedical services. Future work is needed to develop and investigate measures to decrease delays.     

Diverticular disease and diverticulitis

Diverticular disease is one of the most prevalent medical conditions to affect Western populations. Symptomatic diverticular disease can range from mild, low-level symptomatology similar to that seen in irritable bowel syndrome to acute bouts of diverticulitis complicated by abscess or frank perforation. This review discusses the epidemiology, pathophysiology, clinical presentation, and management of the spectrum of diverticular disease, including mention of recent advances in the treatment of chronic diverticular disease with aminosalicyclates and probiotics.     

Effect of low-dose warfarin on D-dimer levels during sickle cell vaso-occlusive crisis: a brief report

OBJECTIVE: To evaluate the activation of clotting systems in patients with sickle cell disease (SCD) by measuring the plasma D-dimer level and to determine the effect of low-dose warfarin on D-dimer level during vaso-occlusive crisis. METHODS: Plasma D-dimer level was measured in 65 blood samples of 37 adult patients with SCD who were hospitalized for vaso-occlusive painful crisis. D-dimer level of patients who were on low-dose warfarin was compared with those patients who were not on any anticoagulation treatment. Analysis of variance (anova) was carried out to determine factors significantly associated with low D-dimer level in patients with SCD. The following factors were included in the anova model; warfarin, homozygous hemoglobin S, history of blood transfusion in past 3 months, hydroxyurea, hemoglobin S%, hemoglobin F%, white blood cell counts, hemoglobin level, platelet count, and plasma fibrinogen level. RESULTS: Overall median D-dimer level in 65 samples was 2.7 microg fibrinogen equivalent units (FEU)/mL (0.34-4). Patients who were on low-dose warfarin had a median D-dimer level of 0.81 microg FEU/mL (0.34-1.8) compared with 3.1 microg FEU/mL (0.94-4) in those patients who were not on anticoagulation treatment. Using anova to model D-dimer levels, only warfarin was significantly correlated with low D-dimer levels after controlling for other variables. CONCLUSIONS: Patients with SCD during vaso-occulsive painful crisis have an elevated D-dimer level. Low-dose anticoagulation treatment is associated with a significant reduction in the D-dimer levels.