Israel Medical Association Journal

The features of infective endocarditis include both cardiac and non-cardiac manifestations. Neurologic complications are seen in up to 40% of patients with infective endocarditis and are the presenting symptom in a substantial percentage. We describe in detail the clinical scenarios of three patients admitted to our hospital, compare their characteristics and review the recent literature describing neurologic manifestations of infective endocarditis. Our patients demonstrate that infective endocarditis can develop without comorbidity or a valvular defect. Moreover, our patients were young and lacked the most common symptom of endocarditis: fever. The most common neurologic manifestations were focal neurologic deficits and confusion. We conclude that infective endocarditis should always be considered in patients presenting with new-onset neurologic complaints, especially in those without comorbidities or other risk factors. A prompt diagnosis should be reached and antibiotic treatment initiated as soon as possible.

Background: Guidelines are frequently under-implemented in older patients with heart failure. Octogenerians are often excluded from clinical trials.

Objectives: To characterize the clinical profile of the oldest-old (age ≥ 80 years) heart failure patients hospitalized in a subacute geriatric hospital and to evaluate their management and 1 year outcome.

Methods: Patient characteristics and in-hospital course were retrospectively collected. Diagnosis of heart failure was based mainly on clinical evaluation in addition to chest X-ray results and echocardiographic findings when available.

Results: The study population comprised 96 consecutive unselected heart failure patients hospitalized from January to June 2003. The patients were predominantly women (67%), aged 85 ± 5 years, fully dependent or frail with a high rate of comorbidities. Adherence to guidelines and recommended heart failure medications was poor. Their 1 year mortality was 57%. According to logistic regression analysis, predictors of 1 year mortality were lower body mass index (odds ratio 0.86, 95% confidence interval 0.78–0.96) and high urea levels (OR[1] 1.04, 95% CI[2] 1.02–1.06).

Conclusions: Our study confirms that the management of oldest-old heart failure patients hospitalized in a subacute geriatric hospital was suboptimal and their mortality was exceptionally high.

Background: The prognostic significance of biologic markers in women with ductal carcinoma in situ is not fully understood. HER2/neu is a marker of prognostic significance that is routinely assessed in invasive cancer but its correlation with clinical outcome in DCIS[1] is still obscure.

Objectives: To evaluate the significance of HER-2/neu expression as a prognostic marker in DCIS.

Methods: Clinical and pathologic data from 84 patients treated for DCIS were analyzed. HER-2/neu expression was determined by immunohistochemical staining. Histopathologic parameters (nuclear grade, histologic subtype, necrosis, calcifications, margins) were reviewed by an experienced pathologist. Local recurrence and/or metastatic spread were used as endpoints to determine the prognostic significance of HER-2/neu expression.

Results: With a median follow-up of 94.8 months, nine recurrences were reported. Neither univariate nor multivariate analysis showed a significant correlation between HER-2/neu expression and disease recurrence or the time to disease recurrence. Although HER-2/neu expression demonstrated a significant association with high nuclear grade (P < 0.0001) and comedo subtype (P < 0.0001), there was no correlation between these histologic features and recurrence rate. The correlation between high nuclear grade and disease recurrence approached statistical significance (P = 0.07).

Conclusions: No significant association was found between HER-2/neu expression in DCIS and disease recurrence. However, HER-2/neu correlated with negative markers such as nuclear grading and comedo necrosis, and its role should therefore be investigated in larger studies.
 

[1] DCIS = ductal carcinoma in situ

Background: Hypocalcaemia following thyroid and parathyroid surgery is a well-recognized potential complication.

Objectives: To determine the utility of intraoperative quick parathormone assay in predicting severe hypocalcemia development following parathyroidectomy for a single-gland adenoma causing primary hyperparathyroidism.

Methods: A retrospective cohort study was performed. IO-QPTH[1] values were measured at time 0 (T0) before incision, and 10 (T10) and 30 minutes (T30) following excision of the hyperfunctioning gland. Percent decrease in IO-QPTH at 10 minutes (T10), maximum percent decrease of IO-QPTH value, and lowest actual IO-QPTH value obtained at surgery were used to determine any correlation with the development of postoperative hypocalcemia requiring treatment.

Results: Percent decrease in IO-QPTH at 10 minutes, maximum percent decrease in IO-QPTH and lowest IO-QPTH value did not correlate with the lowest postoperative calcium levels measured 18 hours after surgery (r = 0.017, P = 0.860 r = 0.018, P = 0.850 and r = 0.002, P = 0.985 respectively). For the purposes of our analysis, patients were subdivided into three groups. Group 1 comprised 68 patients with normal calcium levels (serum Ca 8.6¨C10.3 mg/dl) Group 2 had 28 patients with hypocalcemia (8.1¨C8.6 mg/dl) Group 3 included 12 patients with severe hypocalcemia (calcium level ¡Ü 8.0 mg/dl) requiring calcium supplementation due to symptoms of hypocalcemia. There was no difference between the three groups in the lowest IO-QPTH value (P = 0.378), percent decrease in IO-QPTH (P = 0.305) and maximum percent decrease in IO-QPTH (P = 0.142).

Conclusions: IO-QPTH evaluation was not useful in predicting the group of patients susceptible to develop severe postoperative hypocalcemia.  

[1] IO-QPTH = intraoperative quick parathormone

Background: Hyperbilirubinemia of the newborn is common. Rarely is an underlying disease other than physiologic hyperbilirubinemia considered the cause of high bilirubin levels. Some of the laboratory tests recommended by the American Academy of Pediatrics are expensive and do not always lead to diagnosis.

Objective: To evaluate the efficacy of standard laboratory tests performed on newborn infants requiring phototherapy for hyperbilirubinaemia.

Methods: We conducted a retrospective chart review that included neonates born during a 6 month period with birth weight > 2500 g treated with phototherapy for hyperbilirubinemia (n=282) according to published guidelines. The main outcome measures were primary and maximal bilirubin values (mg/dl), time to jaundice (in days), the number of bilirubin tests undertaken and whether the patient showed abnormal functioning, and the number of days in follow-up.

Results: Thirty-three neonates (11.7%) were positive in at least one laboratory test (defined as "Abnormal" in our study), 45.5% of whom met the criteria for phototherapy during the first 48 hours of life. Among the newborns who were negative for all laboratory tests (defined as "Normal"), only 6.8% met phototherapy criteria within their first 48 hours of life (P < 0.001). In the Normal group there was a consistent decrease in total serum bilirubin values shortly after phototherapy was begun, while the Abnormal group presented an increase in serum bilirubin values during the first 12 hours of phototherapy. None of the infants had conjugated (direct) hyperbilirubinemia during the study period.

Conclusions: Most neonates presenting with a laboratory identifiable etiology for hyperbilirubinemia (i.e., hemolysis) can be distinguished from those who test negative, mainly based on the timing of presentation and response to phototherapy. A more meticulous selection of patients and reduction in the magnitude of routine laboratory testing can safely reduce discomfort to infants with hyperbilirubinemia as well as costs.

Background: High frequency oscillatory ventilation based on optimal lung volume strategy is one of the accepted modes of ventilatory support for respiratory distress syndrome in very low birth weight infants. In 1999 it was introduced in our unit as the primary ventilation modality for RDS[1].

Objectives: To evaluate if the shift to HFOV[2] influenced the outcome of ventilated VLBW[3] infants in the neonatal intensive care unit of Carmel Medical Center.

Methods: Data were obtained from the medical charts of VLBW infants born at Carmel Medical Center, and late mortality data were taken from the Israel Ministry of Internal Affairs records. A retrospective analysis and a comparison with a historical control group ventilated by the conventional method were performed.

Results: A total of 232 VLBW infants with RDS were mechanically ventilated, from 1995 to 2003: 120 were ventilated using HFOV during the period 1999–2003 and 102 infants using CV[4] during 1995–1999. The mean gestational age of survivors was 27.4 ± 2 weeks in the HFOV group and 28.4 ± 2 in the conventional ventilation group (P = 0.03). The sub-sample of infants with birth weights <1000 g ventilated with HFOV showed higher survival rates than the infants in the conventional ventilation group, 53 vs. 25 (64.6% vs. 44.6%) respectively (P < 0.05). A trend for lower incidence of pulmonary interstitial emphysema was observed in the HFOV group.

Conclusions: The introduction of HFOV based on optimal lung volume strategy proved to be an efficient and safe method of ventilation support for VLBW infants in our unit.

Background: Left atrial volume and exercise capacity are strong predictors of cardiovascular risk. Decreased exercise capacity is expected when LAV[1] is increased due to its association with abnormal left ventricular filling pressure. However, LAV enlargement is expected in chronic mitral regurgitation as well.

Objectives: To examine the linkage between LAV and exercise capacity in chronic MR[2] and to determine whether larger LAV has indeed better exercise capacity in patients with chronic severe degenerative MR and good LV systolic function.

Methods: The study included asymptomatic patients with severe chronic degenerative MR and normal LV[3] systolic function that underwent stress echocardiography. LAV was measured at rest using the biplane Simpson’s method and indexed to body surface area. The cutoff of good exercise capacity was determined at 7 METS.

Results: The patient group comprised 52 consecutive patients (age 60 ± 14 years, 36 males). Two subgroups (19 vs. 33 patients), age- and gender-matched, were formed according to LAVi[4] cutoff of 42 ml/m². Those with higher LAVi had lower exercise capacity (P = 0.004) albeit similar MR grade, baseline blood pressure, LV function and size. Receiver-operator curve analysis revealed indexed LAV value of ≤ 42 as 51% sensitive and 88% specific for predicting exercise capacity > 7 METS (AUC[5] = 0.7, P = 0.03). In multivariate analysis, age, gender and LAVi were identified as independent predictors of exercise capacity.

Conclusions: In asymptomatic patients with severe chronic degenerative MR and normal LV systolic function, mild enlargement of the left atrium (≤ 42 ml/m²) is associated with good exercise capacity.

Background: Interleukin-10 is an anti-inflammatory cytokine and consequently is considered by many to have a protective role in heart failure, as opposed to the notorious tumor necrosis factor-alpha.

Objectives: To test the hypothesis of the possible beneficial impact of IL-10[1] on mortality in systolic heart failure patients in relation to their circulating TNFα[2] levels.

Methods: We measured circulating levels of IL-10 and TNFα in 67 ambulatory systolic heart failure patients (age 65 ± 13 years).

Results: Mortality was or tended to be higher in patients with higher levels (above median level) of circulating TNFα (9/23, 39% vs. 6/44, 14%; P = 0.02) or IL-10 (10/34, 30% vs. 5/33, 15%; P = 0.10). However, mortality was highest in the subset of patients with elevation of both markers above median (7/16, 44% vs. 8/51, 16%; P = 0.019). Elevation of both markers was associated with more than a threefold hazard ratio for mortality (HR[3] 3.67, 95% confidence interval 1.14–11.78).

Conclusions: Elevated circulating IL-10 levels in systolic heart failure patients do not have a protective counterbalance effect on mortality. Moreover, patients with elevated IL-10 and TNFα had significantly higher mortality, suggesting that the possible interaction in the complex inflammatory and anti-inflammatory network may need further study.

Background: While the burden of rotavirus infection with regard to hospitalizations has been extensively investigated, there are sparse data regarding the impact and the cost of this infection on the ambulatory part of the health system in Israel.

Objectives: To investigate the burden of rotavirus infection on the ambulatory system in Israel.

Methods: Infants younger than 3 years old examined for acute gastrointestinal symptoms in four pediatric clinics had their stool tested for rotavirus. The parents were contacted 7–10 days later and questioned about the symptoms of illness, medications given, use of diapers, consumption of formula, and any loss of parents' workdays.

Results: Rotavirus was detected in 71 of the 145 stool samples tested (49%). A total of 51 parents responded to the telephonic survey. Patients' mean age was 15.4 months. Three patients were hospitalized due to the illness. The mean duration of fever was 1.7 days. Infants with rotavirus gastroenteritis had on average 2.25 days of vomiting and 7.5 days of diarrhea. The average number of workdays lost was 2.65 days per RVGE[1] case. The cost of the average case of RVGE in Israel is 257 euros; 69.64% of this cost (179 euros) is due to parental work loss.

Conclusions: Our results indicate that the economic impact of the ambulatory cases in Israel is quite significant.

Background: Parallel to increased life expectancy, the number of very elderly patients hospitalized in internal medicine departments is growing rapidly, although clinical data on hospital care are lacking.

Objectives: To investigate the sociodemographic data, hospitalization characteristics and outcomes of nonagenarian patients, as these measures are necessary for evaluating prognostic information and predictors of mortality.

Methods: We reviewed the medical records of all patients aged ≥ 90 hospitalized in our institute's Department of Internal Medicine. The data comprised 482 admissions of 333 patients hospitalized over a one year period.

Results: Half of the study patients were residents of nursing institutions. A high rate of atrial fibrillation was documented (106 patients, 32%). Acute infectious diseases constituted the leading diagnosis (276/482 admissions, 57%), followed by acute coronary syndrome (17% of admissions). In-hospital mortality occurred in 74 patients (22%). Chronic therapy with statins or acetylsalicylic acid was inversely related to mortality (P < 0.05). The main predictors for in-hospital death of nonagenarians were pressure sores, older age, atrial fibrillation, malignant disease, and admission due to an acute infection, especially Clostridium difficile-associated diseases. In addition, mental decline, permanent urinary catheter, leukocytosis, renal failure and hypoalbuminemia predicted post-discharge mortality. Admission due to an infectious disease but not acute coronary syndrome was significantly correlated to in-hospital and post-discharge mortality (P < 0.001).

Conclusions: Hospitalized nonagenarians comprise a growing group with distinct characteristics and increasing significance in the daily practice of internal medicine departments. Comprehensive assessment of the elderly at admission together with identification of the above clinical and laboratory risk factors for mortality will help determine in-hospital management, discharge planning and rehabilitation programs.