Israel Medical Association Journal

Background: There is a growing shortage of anesthesiologists practicing in Israel. This shortage is in contrast with the United States where anesthesiology has become a very desired specialty.

Objectives: To discover what factors attract Israeli students to choose a residency and how students view the option of choosing anesthesiology.

Methods: We sent questionnaires to students in the Israeli and American programs at Tel Aviv University’s Sackler Faculty of Medicine asking about factors that influenced their choice of residency and the advantages and disadvantages of a residency in anesthesiology. Although the students were studying at the same medical school and hospitals, students in the Israeli program were planning to enroll in Israeli residency programs while students in the American program planned to apply for residency in the United States.

Results: A significantly larger proportion of American students (12.9%) were interested in an anesthesiology residency when compared with the Israeli students (0%) (P = 0.034). American students considered salary and working conditions to be advantages of the anesthesiology residency while Israeli students considered Israeli working conditions and salaries to be a disadvantage.

Conclusions: Whereas there is considerable interest among American students at Sackler Medical School in an anesthesia residency, there is little interest among Israeli students.
 

Background: The rate and duration of breastfeeding in Ethiopia is very high. Factors that could affect breastfeeding among women emigrating to Israel include the desire to adopt "modern" behaviors, the availability of infant formulas, and the greater awareness of AIDS and fear of transmission via breast milk.

Objectives: To examine the rate and duration of breastfeeding among recent Ethiopian immigrants to Israel.

Methods Using a structured questionnaire we interviewed 93 Ethiopian born mothers of children aged 2 months to 5 years living in northern Israel.

Results: Ninety-two percent of the children born in Ethiopia were exclusively breastfed as compared to 76.3% of the Israeli born children, in whom the rate of mixed feeding was 18.3%. Although the duration of breastfeeding of the youngest child was significantly shorter than of the firstborn (20.1 vs. 24.8 months), it remains much longer than the average duration for native Israeli mothers. No association was seen between breastfeeding rate or duration and the years since immigration, work outside the home or exposure to formula. The women’s attitude towards breastfeeding was positive despite the lack of specific knowledge concerning breast milk and infant formulas.

Conclusions: Breastfeeding patterns among Ethiopian women have changed since their immigration to Israel. These changes probably reflect the cultural and societal pressures to acculturate to the mores of the adopted society. Reinforcing traditional family and peer support for these women is important to preserve breastfeeding in this population. This should be done within the context of changes in the support for breastfeeding in the general Israeli society.

Background: Professional volunteers play a crucial role in reinforcing emergency medical services in Israel. In order to encourage volunteers to return for additional shifts, the organization should provide conditions that will assure the return, particularly at a time of self-risk such as war. In 2009 Israeli emergency medical services (Magen David Adom) were required to increase preparedness in the southern part of the country due to missile attacks on civilian populations, while continuing their routine activities, i.e., responding promptly to emergency events. In order to perform these multiple functions, MDA[1] stations in the towns under attack were strengthened with volunteers from other regions of the country. These volunteers, trained as paramedics, served in 24–48 hour shifts.

Objectives: To identify the factors influencing the willingness of volunteers to return.

Methods: A questionnaire was used to assess the satisfaction of volunteers participating in the reinforcement with regard to their physical environment, job assignment and the actual activity they were involved in. Data were analyzed using SPSS statistical software.

Results: During the 10 days of the study, 121 volunteers reinforced southern MDA stations and 99 (81%) of them responded to the questionnaire. We found that volunteers' willingness to return to do more shifts was affected by their welcome and reception at the station, their job assignment, and their training and preparation for performing the necessary tasks. The sleeping conditions and the number of events they participated in were also contributing factors.

Conclusions: Factors that contribute to the willingness of volunteers to re-volunteer should be taken into account by organizations that rely on them.

Background: Osler taught that splenic infarction presents with left upper abdominal quadrant pain, tenderness and swelling accompanied by a peritoneal friction rub. Splenic infarction is classically associated with bacterial endocarditis and sickle cell disease.

Objectives: To describe the contemporary experience of splenic infarction.

Methods: We conducted a chart review of inpatients diagnosed with splenic infarction in a Jerusalem hospital between 1990 and 2003.

Results: We identified 26 cases with a mean age of 52 years. Common causes were hematologic malignancy (six cases) and intracardiac thrombus (five cases). Only three cases were associated with bacterial endocarditis. In 21 cases the splenic infarction brought a previously undiagnosed underlying disease to attention. Only half the subjects complained of localized left-sided abdominal pain, 36% had left-sided abdominal tenderness 31% had no signs or symptoms localized to the splenic area, 36% had fever, 56% had leukocytosis and 71% had elevated lactate dehydrogenase levels. One splenectomy was performed and all patients survived to discharge. A post hoc analysis demonstrated that single infarcts were more likely to be associated with fever (20% vs. 63%, p < 0.05) and leukocytosis (75% vs. 33%, p = 0.06)

Conclusions: The clinical presentation of splenic infarction in the modern era differs greatly from the classical teaching, regarding etiology, signs and symptoms. In patients with unexplained splenic infarction, investigation frequently uncovers a new underlying diagnosis. 

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: The predictive value of electrophysiologic studies depends on the aggressiveness of the programmed ventricular stimulation protocol.

Objectives: To assess if non-inducibility with an "aggressive" protocol of PVS[1] identifies post-infarction patients with low ejection fraction (EF[2] ≤ 30%) who may safely be treated without implantable cardioverter defibrillator.

Methods: We studied 154 patients during a 9 year period. Our aggressive PVS protocol included: a) stimulus current five times the diastolic threshold (≤ 3 mA) and b) repetition of double and triple extrastimulation at the shortest coupling intervals that capture the ventricle.

Results: Sustained ventricular tachyarrhythmias were induced in 116 patients (75.4%) and 112 (97%) of them received an ICD[3] (EPS[4]+/ICD+ group). Of the 38 non-inducible patients, 34 (89.5%) did not receive an ICD (EPS-/ICD- group). In comparison to the EPS+/ICD+ group, EPS-/ICD- group patients were older (69 ± 10 vs. 65 ± 10 years, P < 0.05), had a lower EF (23 ± 5% vs. 25 ± 5%,  P < 0.05) and a higher prevalence of left bundle branch block (45.5% vs. 20.2%, P < 0.005). Follow-up was longer for EPS+/ICD+ patients (40 ± 26 months) than for EPS-/ICD- patients (27 ± 22 months) (P = 0.011). Twelve EPS+/ICD+ patients (10.7%) and 5 EPS-/ICD- patients (14.7%) died during follow-up (P = 0.525). Kaplan-Meier survival curves did not show a significant difference between the two groups (P = 0.18).
Conclusions: The mortality rate in patients without inducible VTAs[5] using an aggressive PVS protocol and who did not undergo subsequent ICD implantation is not different from that of patients with inducible arrhythmias who received an ICD. Using this protocol, as many as one-fourth of primary prevention ICD implants could be spared without compromising patient prognosis

Background: Although the comprehensive evaluation of the fetal heart includes echocardiography by an experienced pediatric cardiologist, economic constraints sometimes dictate the need to select patients.

Objectives: To analyze the usefulness of fetal echocardiography in the detection of congenital heart disease according to the referral indication.

Methods: This retrospective survey relates to all 3965 FE studies performed in our center from January 2000 to December 2004. The diagnosed cardiac anomalies were classified as significant and non-significant malformations. All FE[1] studies were done by a single operator (A.L.) at Meir Medical Center, a referral center for a population of about 400,000. The 3965 FE studies were performed for the following indications: abnormal obstetric ultrasound scans, maternal and family history of cardiac malformations, medication use during the pregnancy, and maternal request. The relative risk of detecting CHD[2] was calculated according to the various referral indications.

Results: Overall, 228 (5.8%) cases of CHD were found. The most common indication for referral was suspicion of CHD during a four-chamber view scan in a basic system survey or during a level II ultrasound survey. No correlation was found between maternal age and gestational age at the time of scanning and the likelihood of finding CHD.

Conclusions: Our data suggest that a suspicious level-II ultrasound or the presence of polyhydramnios is an important indication for FE in the detection of significant CHD.

Background: Injury to patent grafts or cardiac chambers may occur during reoperation after coronary artery bypass grafting. Preoperative spatial localization of bypass grafts with computed tomography may improve the safety of these procedures.

Objectives: To characterize patients who undergo CT before repeat operations after previous coronary artery bypass grafting, and evaluate its benefit in terms of surgical outcome.

Methods: We compared 28 patients who underwent cardiac gated CT angiography before reoperation (CT group) to 45 re-do patients who were not evaluated with CT (no‑CT group).

Results: The two groups were similar in most preoperative and operative characteristics. The CT group, however, included more patients with patent saphenous vein grafts and fewer with emergency operations, acute myocardial infarction and need for intraaortic balloon pump support. During mid-sternotomy, there was no injury to grafts in the CT group, while there were two patent grafts and three right ventricular injuries in the no-CT group. There was no significant difference in perioperative mortality (3.6% vs. 8.9%). The overall complication rate in the CT group was 21.4% compared to 42.2% in the no‑CT group (P = 0.07). The only independent predictors of postoperative complications were diabetes mellitus, preoperative stroke and preoperative acute MI[1].

Conclusions: The patency and proximity of patent grafts to the sternum are well demonstrated by multidetector CT and may provide the surgeon with an important roadmap to avoid potential graft injury. A statistical trend towards reduced complications rate was demonstrated among patients who underwent CT angiography before their repeat cardiac operation. Larger series are required to demonstrate a statistically validated complication-free survival benefit of preoperative CT before repeat cardiac surgery.

Background: The QT interval reflects the total duration of ventricular myocardial repolarization. Its prolongation is associated with increased risk of polymorphic ventricular tachycardia, or torsade de pointes, which can be fatal.

Objectives: To assess the prevalence of both prolonged and short QT interval in patients admitted to an acute geriatric ward.

Methods: This retrospective study included the records over 6 months of all patients hospitalized in an acute geriatric ward. Excluded were patients with pacemaker, bundle branch block and slow or rapid atrial fibrillation. The standard 12 lead electrocardiogram of each patient was used for the QT interval evaluation.

Results: We screened the files of 422 patients. QTc prolongation based on the mean of 12 ECG leads was detected in 115 patients (27%). Based on lead L2 only, QTc was prolonged in 136 (32%). Associated factors with QT prolongation were congestive heart failure and use of hypnotics. Short QT was found in 30 patients (7.1%) in lead L2 and in 19 (4.5%) by the mean 12 leads. Short QT was related to a higher heart rate, chronic atrial fibrillation and schizophrenia.

Conclusions: Our study detected QT segment disturbances in a considerable number of elderly patients admitted acutely to hospital. Further studies should confirm these results and clinicians should consider a close QT interval follow-up in predisposed patients.