Israel Medical Association Journal

Background: The diagnosis of gastrointestinal stromal tumors is based on documentation of c-KIT and platelet-derived growth factor-alpha receptors or specific c-KIT mutations. Before the diagnosis of GIST[1] was possible, all cases had been classified as sarcomas or benign tumors.

Objectives: To identify cases of GIST formerly diagnosed as abdominal or retroperitoneal mesenchymal tumors.

Methods: We reviewed the archive material on all surgical cases diagnosed as gastrointestinal related malignant mesenchymal tumors or GIST in our medical center during the last decade (1995–2004).

Results: Sixty-eight cases of retroperitoneal soft tissue sarcoma were identified. Thirty-eight were reconfirmed to be GIST, 19 were newly diagnosed as GIST (the hidden cases), 8 cases were re-diagnosed as mesenchymal tumors, and 3 cases of sarcoma remained sarcomas. Of all the GIST tumors, c-KIT-positive and PDGFRα[2]-positive tumors were more characteristic of primary gastric tumors, while c-KIT-positive and PDGFRα-negative tumors were found in the colorectal area. The c-KIT-negative and PDGFRα-positive cases were of gastric origin.

Conclusions: Any c-KIT-negative malignant mesenchymal mass located near the proximal gastrointestinal tract should also be stained for PDGFRα to differentiate between GIST and other soft tissue sarcomas. Practically, formerly diagnosed abdominal or retroperitoneal soft tissue sarcomas should be reviewed to identify patients with misdiagnosed GIST and thereby avoid future unnecessary and ineffective chemotherapy.

Background: Smoking continues to be the most significant preventable  cause of morbidity and early mortality in the developed world. Primary care physicians are not fufilling their potentially vital and effective role regarding tobacco use and dependence.

Objectives: To evaluate current primary care physician practise in promoting smoking cessation.

Methods: This observational study evaluated physician recording of smoking status by analysis of patients’ electronic medical records. The 126 primary care physicians were based in 23 Tel Aviv clinics treating 144, 811 patients. We also assessed additional physician anti-smoking activities by telephone questionnaire of 178 randomly selected patients.

Results: Analysis of the EMRs[1] revealed that an average of 4.4% of patients per physician were recorded as smokers (as compared to a known smoking rate in this patient population of 24%). Male physicians recorded a significantly higher proportion of their patients as smokers in the EMR compared to female physicians (P < 0.05). A non-significantly higher rate of recording smokers was found in doctors who had completed postgraduate specialization in family medicine as compared to non-specialists. The questionnaire results show that 41% of patients interviewed recalled being asked if they smoked and 31% of smoking patients had been advised to quit. A non-significantly higher proportion of male as compared to female patients reported being questioned if they smoked, and if they were smokers, being advised to quit.

Conclusions: This study shows low rates of physician intervention to promote smoking cessation. It appears that a large proportion of the primary care physicians surveyed do not follow recommendations to promote smoking cessation among their patients. Intervention among adolesent smokers was particularly inadequate. Further action is needed to improve the performance of physicians in aiding smoking cessation.

Background: Serology of amebiasis is affected by low sensitivity and specificity.

Objectives: To evaluate the advantage of the indirect hemagglutination assay and enzyme-linked immunosorbent assay in the diagnosis of amebiasis, using Entamoeba histolytica soluble antigen (macerated amebic antigens) prepared from four different virulent isolates, continuously cultivated in the presence of the original enteric bacteria.

Methods: Using IHA[1] and ELISA[2] with MAA[3] antigen we examined 147 sera samples from patients with gastrointestinal symptoms, and 11 sera from amebiasis cases (confirmed by microscopy and copro-antigen ELISA ).

Results: Of 104 of the 147 (70.7%) symptomatic cases that were amebiasis positive by IHA, 81 (55.1%) were positive by MAA-ELISA. In addition, of 11 amebiasis cases confirmed by microscopy and copro-antigen ELISA , 7 (64%) were amebiasis positive by both tests. Four species of bacteria were isolated from the ameba cultures: Escherichia coli, Morganella morganii, Proteus mirabilis, and Streptococcus lactis. Elimination of the bacteria from the cultures by an antibiotics cocktail containing gentamicin, imipenem, piperacillin-tazobactam and vancomycin was the preferred method. Absorption of patients' sera to bacterial antigen prior to serological analysis had only a marginal effect.

Conclusions: These results indicate a correlation of 61% between the ELISA developed in this study and the IHA tests in the diagnosis of amebiasis.

Background: Femoral artery vascular complications are the most common adverse events following cardiac catheterization. Smaller diameter introducer sheaths and catheters are likely to lower the puncture site complication rate but may hinder visualization.

Objectives: To evaluate the safety and angiographic quality of 4 French catheters.

Methods: The study was designed to simulate real-life operator-based experience. Diagnostic angiography was performed with either 4F or 6F diagnostic catheters; the size of the catheter used in each patient was predetermined by the day of the month. Patients undergoing 4F and 6F diagnostic angiography were ambulated after 4 and 6 hours, respectively. The following technical parameters were recorded by the operator: ease of introducer sheath insertion, ease of coronary intubation, ease of injection, coronary opacification, collateral flow demonstration, and overall assessment. Adverse events were recorded in all patients and included minor bleeding, major bleeding (necessitating blood transfusion), minor hematoma, major hematoma, pseudo-aneurysm formation and arteriovenous fistula.

Results: The study group included 177 patients, of whom 91 were in the 4F arm and 86 in the 6F arm. Demographic and procedural data were similar in both groups. Seventy-seven percent of 6F and 50% of 4F procedures were evaluated as excellent (P < 0.05). This difference was attributed to easier intubation of the coronary ostium and contrast material injection, increased opacification of the coronary arteries, and demonstration of collateral flow with 6F catheters. Complications occurred in 22% of patients treated with 6F catheters and 10% of those treated with 4F catheters (P = 0.11). Of the 50 patients who switched from 4F to 6F 12% had complications. In patients undergoing diagnostic angiography, the complication rate was 10% vs. 27% (most of them minor) in the 4F and 6F groups, respectively (P < 0.05).
Conclusions: Patients catheterized with 4F have fewer complications compared with 6F diagnostic catheters even when ambulated earlier. Although 4F had a reduced quality compared to 6F angiographies, they were evaluated as satisfactory or excellent in quality 85% of the time. 4F catheters have a potential for reduced hospitalization stay and are a good option for primary catheterization in patients not anticipated to undergo coronary intervention

This paper does not attempt to deal with the legitimate ethical or moral debate on abortion. Utilizing abortion as a subject I will show how science and medicine in general, and abortion in particular, were used as weapons of mass destruction by Nazi physicians in their zeal to comply with the political climate of the time. Nazi policy on abortion and childbirth was just one of the methods devised and designed to ensure the extermination of those whom the Nazis deemed had "lives not worth living." Physicians implemented these policies, not with the fate of their patients in mind, but rather in the name of the "state." When discussing pregnancy, abortion and childbirth during the Holocaust it is imperative to include an essay of how these issues affected the Jewish prisoner doctors in the ghettos and camps. Nazi policy dictated their actions too. From an extensive search of their testimonies, I conclude that for these doctors ethical discourse comprised a fundamental component of their functioning. I do not propose to judge them in any way and one should not, in my opinion, argue whether their behavior was or was not morally acceptable under such duress; nevertheless, unlike their Nazi counterparts, a key theme in their testimonies was to "keep their medical values."

Background: The degree of left ventricular dysfunction determines the prognostic outcome of patients with acute myocardial infarction.

Objectives: To define the clinical, angiographic and procedural variables related to LV[1][1] dysfunction in patients with  with anterior wall AMI[1][2] referred for primary percutaneous coronary intervention.

Methods: The sample included 168 patients treated by primary PCI[1][3] for first anterior wall AMI. Clinical, demographic and medical data were collected prospectively into a computerized registry, and clinical outcome (death, reinfarction, major cardiovascular event) were evaluated during hospitalization and 30 days after discharge. Patients were divided into three groups by degree of LV dysfunction (mild, moderate, severe) and compared for clinical, angiographic and procedural variables.

Results: LV dysfunction was associated with pre-PCI renal failure (serum creatinine > 1.4 mg/dl), peripheral vascular disease, high peak creatine kinase level, longer door to balloon time, low TIMI flow grade before and after PCI, and use of an intraaortic balloon pump. On multivariate analysis adjusted for baseline differences, peak creatine kinase level (r = 0.3, P = 0.0001) and door to needle time (r = 0.2, P = 0.008) were the most significant independent predictors of moderate or severe LV dysfunction after anterior AMI.

Conclusion: Abnormal LV function after first anterior AMI can be predicted by door to balloon time and the size of the infarction as assessed by creatine kinase levels. Major efforts should be made to decrease the time to myocardial reperfusion.

[1][1] LV = left ventricular

[1][2] AMI = acute myocardial infarction

[1][3] PCI = percutaneous coronary intervention