תוצאת חיפוש

ידידיה בנטור

המכון הארצי למידע בהרעלות מרכז רפואי רמב"ם הפקולטה לרפואה רפפורט הטכניון, מכון טכנולוגי לישראל, חיפה

תשומת לב מועטה יחסית מוקדשת בספרות הרפואית לנושא של הרעלות חדות בהריון. עיקר ההתייחסות היא להשפעה של חשיפה פארמאקולוגית על ההריון והעובר, ולא ברור באיזו מידה ניתן לייחס תוצאות חשיפה זו למצב של מינון-יתר חד. עם זאת, העובר עשוי ללקות בהשפעות ההרעלה, בפרט אם האם לוקה בה.

הרעלה חדה במהלך הריון מהווה אתגר טיפולי ייחודי, מאחר שמדובר בשני חולים הנמצאים בו-זמנית בסיכון. למרות שהסכיון בהרעלה מסוימת אינו בהכרח זהה לאם ולעובר, הטיפול הניתן דומה בד"כ לזה הניתן לחולים שהורעלו שאינם בהריון. שמירה על בריאות האם היא העיקרון הטיפולי החשוב ביותר, ונוכחות העובר אינה בהכרח מחייבת שינוי הטיפול.

Whole Bowel Irrigation in Infants for Acute Iron Poisoning 

Nir Sokolover, Avinoam Rachmel

Pediatric Dept. A, Schneider Children's Medical Center; Rabin Medical Center, Petah Tikva; and Tel Aviv University Medical School

Acute iron poisoning is a major cause of death due to poisoning in children, so knowledge of its presentation and appropriate management are necessary. Whole bowel irrigation, used routinely in preparation for elective surgery and colonoscopy, are safe and effective procedures. In recent years whole bowel irrigation has been used several times in various toxic situations, including acute iron poisoning.

We report our successful experience treating acute iron poisoning in a 1-year-old girl using whole bowel irrigation and deferoxamine. The safety and theoretical effectiveness of the procedure, although not proven in controlled clinical studies, suggests the use of whole bowel irrigation as treatment for acute iron poisoning.

Acetaminophen Toxicity in Children - A Therapeutic "Misadventure"

Sarit Shahroor, Yigal Shvil, Mely Ohali, Esther Granot

Dept. of Pediatrics, Hadassah University Hospital and Hebrew University Hadassah Medical School, Jerusalem; and Dept. of Pediatrics, Barzilai Medical Center, Ashkelon

Acetaminophen toxicity after repeated administration of amounts that only moderately exceed recommended doses, is being increasingly reported in alcoholic or fasting adults. Pediatric experience with this pattern of acetaminophen toxicity is sparse.

We present 2 children who developed severe hepatic damage, with renal insufficiency as well in 1, after 15-20 mg/kg of acetaminophen, given at 4-hour intervals for 3-4 days during an intercurrent febrile illness. When given in doses as low as 20 mg/kg at frequent intervals for a number of days, the drug puts children who are vomiting or have sharply reduced caloric intakes at increased risk for severe toxicity.

Increased caution and awareness of the toxic effects of acetaminophen are needed, and it should be dispensed with appropriate package-label warnings.

Psychogenic Polydipsia Leading to Water Intoxication

L. Umansky, A. Sella

Psychiatry Dept., Eitanim Mental Health Center (Affiliated with the Hebrew University-Hadassah Medical School, Jerusalem)

Psychogenic polydipsia and its frequent complication, water intoxication, are well-known to psychologists. There are biochemical and psychiatric theories of psychogenic polydipsia which often correlate with each other.

A 48-year-old man with chronic paranoid schizophrenia developed symptoms of psychogenic polydipsia. This provoked disturbances in electrolyte balance, resulting in a rapid decrease in serum sodium concentration and eventual death. There is a paucity of information and little awareness of this problem in the professional literature.

Cocaine "Mules"

Ornit Yanai, Jehuda Hiss

L. Greenberg Institute of Forensic Medicine, Tel Aviv (Affiliated with the Sackler Faculty of Medicine, Tel Aviv University)

We present 2 cases of "body-packer" syndrome (BPS) in which the "mules" carrying the packages of narcotics arrived at Ben-Gurion Airport presented symptoms of acute cocaine intoxication due to the bursting of packages of narcotics they were transporting within their gastro-intestinal systems.

Acute cocaine overdose due to sudden massive release of the drug into the digestive system in BPS, may cause psychosis, convulsions and eventually death. Blood levels of cocaine between 0.25 and 5 mcg/ml are toxic and occasionally lethal. When a package bursts within the digestive tract of a smuggler or blocks the intestines, an immediate laparotomy is necessary to evacuate the "ovules" and the remains of the drug from stomach and intestines. Patients merely suspected of being body packers can be diagnosed by physical examination and by means of various imaging methods. They can be conservatively treated with fluids and mild laxatives and kept under close supervision until the remaining packages are naturally discharged.

Sudden onset of psychotic behavior in travelers from South America or other drug-producing countries should raise suspicion of body-packer syndrome. The relevant authorities should therefore be aware of the symptoms and consider their potentially dangerous outcome.

Influence of Warning Labels on Medicines and Physicians' Orders on Patient Behavior

Yehuda Limony, Pesah Shwarzman

Child Health Center of Kupat Holim Klalit, Kiryat Gat and Dept. of Family Medicine, Ben-Gurion University of the Negev, Beer Sheba

Compliance of 40 mothers with a warning label, "for external use," on a medicine package was checked in a survey in a primary care clinic for children. We also checked parents' attitudes to giving a medicine to their child when instructions given by the physician or by a friend contradicted the printed warning on the label. All mothers who were told that the medicine was recommended by their physicians accepted the recommendation without hesitation. Another group included 20 mothers who were told that the medicine was recommended by a friend. 9 of 20 mothers in this group refused to use the medicine. Talking with the nurse about the potential risk of medicine in general, some mothers, after second thought, refused to give the medicine to their child. At the end, 65% of recommendations made by a friend were rejected by mothers as compared to only 15% of the physicians' recommendations.

35 of 40 mothers (87%) understood the meaning of the warning label, but only 13 (32%) had noticed it at all. We conclude that patients may accept their physicians' recommendation to use a medicine despite a contradictory warning label much more readily than when it was recommended by a friend. Therefore, any intervention program intended to promote a more cautious use of medicines should include not only the explanations of the various warning labels but should also promote a change in the patient's behavior to a more active search for warning labels.

Toxic Optic Neuropathy caused by Methanol Poisoning

Rina Reisin, Ehud Liebovitz, Shmuel Levartovsky

Dept. of Ophthalmology, Barzilai Medical Center, Ashkelon

A 40-year-old woman attempted suicide by drinking methanol. Her visual acuity began to deteriorate 36 hours later and was found to be 6/60 in her right eye with no light perception in the left. No systemic manifestations other than the eye symptoms were found. In the following months visual acuity improved without specific therapy. 2 months following the methanol, visual acuity was 6/6 in the right eye and finger-counting at 1 meter in the left eye. There was pronounced optic atrophy in the left eye, as well as a central defect in the left visual field due tothe methanol toxicity.

Epidemiological Characteristics of Outbreaks of Diarrhea and Food Poisoning in the Israel Defense Forces

I. Grotto, Y. Mandel, I. Ashkenazi, J. Shemer

Army Health Branch, IDF Medical Corps and Sackler Faculty of Medicine, Tel Aviv University

Acute infectious diseases of the gastrointestinal tract and food poisoning are problems of great importance in the Israel Defense Force (IDF). They involve individual and epidemic morbidity, with impairment of health of individual soldiers and in the activities of units. Outbreaks of gastrointestinal infectious diseases must be reported to the IDF army health branch, which conducts epidemiological investigation. This study is based on data from yearly epidemiological reports for 1978-1989, and from a computerized database for the years 1990-1995. The incidence of outbreaks is characterized by an unstable trend, It was highest at the end of the 80's (68.3 per 100,000 soldiers on active duty) and lowest for the last 2 years (1994-1995, 36.3 per 100,000). The incidence of soldiers involved in food-borne outbreaks has been more stable, constantly declining during the course of the years. There was marked seasonality with a peak in the summer months. Sporadic morbidity was constant in 1990-1995, with a yearly attack rate of 60% in soldiers on active duty. Shigella strains were the leading cause of outbreaks until 1993, while in 1994-1995 their proportion decreased, with an increase in the proportion of Salmonella strains. As to Staphylococcus aureus, its role in causing food poisoning has been characterized by marked changes. Shigella sonnei replaced Shigella flexneri as the leading strain. 73.3% of outbreaks were small, with fewer than 40 soldiers involved, while 5.4% of outbreaks affected more than 100 soldiers. Outbreaks in which a bacterial agent was identified or which occurred in new-recruit bases were larger than those in which a bacterial agent was not identified, or which occurred in active field unit bases. In conclusion, the rates of infectious disease of the gastrointestinal tract are still high, although there has been a marked decrease since 1994. The incidence of outbreaks has also decreased, as well as the role of Shigella as a leading causative agent.

Water Intoxication following Desmopressin Overdose

D. Segal-Kuperschmit, O. Dali-Gotfrid, A. Luder

Pediatric Dept., Rebecca Sieff Hospital, Safed

Water intoxication is a serious condition which may be caused by desmopressin overdose, with reversible or irreversible neurological complications. In the past, desmopressin was used in endocrinological centers for the treatment of anti-diuretic hormone deficiency (central diabetes insipidus). Indications for hormone treatment have since widened, especially as an effective solution for nocturnal enuresis. It is now often prescribed in community clinics, and its use has been encouraged by extensive promotion. We describe a 15-year-old boy with primary nocturnal enuresis who started treatment with desmopressin 1 year prior to admission. He was allowed to use the drug without supervision, and drank excessively. The result was water intoxication which required admission for intensive care because of loss of consciousness and convulsions for 36 hours.

Salbutamol Intoxication

Haim D. Danenberg

Division of Medicine, Hadassah University Hospital, Jerusalem

A 20-year-old asthmatic woman who ingested 300 mg of salbutamol (Albuterol) and 30 g of paracetamol is presented. She had sinus tachycardia up to 160/min, hypotension (80/50 mmHg), tremor, hypokalemia (2.1 mEq/l) and hyperglycemia (12.1 mEq/l). Treatment was by gastric lavage, fluids, potassium and N-acetylcysteine. Symptoms resolved in 24 hours.

Hyperbaric Oxygen for Carbon Monoxide Poisoning

A. Abramovich, A. Shupak, Y. Ramon, O. Shoshani, Y. Bentur, G. Bar-Josef, U. Taitelman

Israel Naval Medical Institute, Israel Defense Forces Medical Corps, Haifa and Israel Poison Information Center, Intensive Care Unit and Pediatric Intensive Care Unit, Rambam Medical Center, Haifa

Severe cases of carbon monoxide (CO) poisoning from all over Israel are treated at the Israel Naval Medical Institute with hyperbaric oxygen (HBO). Between 1.11.94 and 15.2.95, 24 cases of CO poisoning were treated. Poisoning was usually due to domestic gas-fired heating systems, CO being the only toxin involved. Since delay between termination of CO exposure and arrival at the emergency department averaged 55 minutes, the level of carboxyhemoglobin measured on presentation did not always reflect the true severity of the poisoning. Poisoning was defined as severe and requiring HBO treatment when 1 or more of the following indications was present: evidence of neurological involvement, cardiographic signs of acute ischemic injury, metabolic acidosis, carboxyhemoglobin level greater than 25%, and pregnancy. 20 (84%) recovered consciousness during the course of 1 session (90 min.) of HBO treatment (p2 2.8 ATA) or immediately thereafter, with resolution of other signs of CO poisoning. 3 required a second treatment session before their symptoms resolved. A patient who arrived in deep coma with severe cerebral edema died. HBO is an important element in the combined treatment of severe CO poisoning. There should be greater awareness of the danger of CO poisoning and the means of preventing it, both among medical staff and the population as a whole, mainly in areas in which cold weather requires use of heating systems, which may be gas-fired.