תוצאת חיפוש

Photodynamic Therapy of Nasal Basal Cell Carcinoma

R. Haddad, M. Cohen, O. Kaplan, R. Greenberg, H. Kashtan

Dept. of Surgery, Tel Aviv-Sourasky Medical Center

Photodynamic therapy (PDT) is a noninvasive modality used topically for several skin cancers. We evaluated the effects of PDT on basal cell carcinoma (BCC) of the nose, using aminolevulinic acid (ALA) as a photosensitizer and a non-laser light source (Versa-LightTM). The advantages of this light source are synergistic, hyperthermia and fewer side effects.

A paste of 20% ALA was applied topically to biopsy-proven BCC of the nose. Lesions were covered with occlusive light-shielding dressing and after 18 hours they were submitted to 10 minutes of exposure to the light. Initial evaluation was made after 21 days and every 3 months thereafter. Patients who did not respond after 2 treatments were referred for surgery.

Mean follow-up in 31 patients was 19 months (range 6-36). There were no significant side-effects. There was complete response in 24/27 (88.9%), in whom there was recurrence in 2/27 (7.4%).
 

Prevention and Treatment of Procedural Pain in Pediatric Wards

R. Gorodischer, L. Herzog, E. Herzog

Depts. of Pediatrics A and Anesthesiology, Soroka University Medical Center; and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheba

Present knowledge and available pharmacological agents allow for adequate prevention and treatment of pain in children. We present guidelines we prepared for the prevention and treatment of procedural pain in children in our general pediatric ward. This followed extensive review of the literature, participation in scientific meetings, discussions with experts and consultation with interested clinicians. Successful implementation of the guidelines requires increased appreciation of the importance of pain prevention, participation of the nursing, as well as medical staff, and ability to evaluate pain in children of various ages.
 

Antioxidant Profile of Human Saliva and its Biological Significance

R. M. Nagler, A. Z. Reznick

Dept. of Oral and Maxillofacial Surgery, Salivary Clinic and Oral Biochemistry Laboratory; Rambam Medical Center and Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa

Saliva is the first biological medium to come in contact with materials entering the body through the oral cavity. These materials are contained in food and drink (or inhaled as volatile ingredients). Accordingly, saliva contains various defense mechanisms which have been thoroughly investigated. They include immunological and enzymatic systems aimed at pathological microorganisms. Saliva also can protect the mucosa against mechanical insults and when required, promote its healing via agents such as the epidermal growth factor.

Another defense mechanism in saliva which has been gaining increased attention and seems to be of paramount importance is its antioxidant system. We discuss both the molecular and enzymatic components of the salivary antioxidant system in respect to mixed, parotid, submandibular and sublingual saliva and under various physiological conditions of secretion.

A Molecular Method of Diagnosis of Congenital Adrenal Hyperplasia

Shoshana Israel, Chaim Brautbar

Tissue Typing Unit, Hadassah Medical Center, Jerusalem

Congenital adrenal hyperplasia (CAH) is caused mainly by deficiency of the 21-hydroxylase enzyme. The disease may appear in the classical salt-losing, simple virilizing forms or as a mild, nonclassical form. 21-hydroxylase is encoded by the CYP21B gene on the short arm of chromosome 6, in the midst of the human leukocyte antigen (HLA) complex, between HLA Class I and Class II regions.

We describe a method for identifying mutations in the CYP21B gene. It is based on amplification of the gene using the polymerase chain reaction and identification of mutations with sequence-specific oligo-probes. The mutations identified were: V281 and P30L responsible for nonclassical CAH, and I2 splice, Q318X, I172N, cluster E6, and a deletion including 8bP in the third exon (8bP del) responsible for the classical form of CAH.

We also analyzed 2 families affected with the classical form of CAH which demonstrate possible complications in genotyping. Typing for HLA haplotypes can be helpful in certain cases, as demonstrated in 1 of the families presented. In this case it was necessary to distinguish between 2 possible genotypes: 1 with the mutations in tandem on 1 chromosome and the other with the mutated genes on both chromosomes. HLA haplotyping enabled the assignment of the mutations to the relevant chromosomes and thus allowed correct genetic counseling.

The other family demonstrated the importance of CYP21B genotyping in individuals with the nonclassical form of CAH. This form may consist of 1 mild and 1 severe mutation, representing a serious potential for transmitting the classical form of CAH.

Folic Acid for Preventing Neural Tube Defects

Ziv Gil, Adi Aran, Orna Friedman, Liana Beni-Adani, Shlomo Constantini

Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheba; Division of Pediatric Neurosurgery, Dana Children's Hospital, Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv

Spina bifida and anencephaly are the most common, serious malformations in neural tube defects (NTD). Randomized trials in the last 2 decades have demonstrated that folic acid, 0.4 mg/d, reduces the incidence of NTD by more than 50%. We investigated the use of folic acid and multivitamins containing folic acid in childbearing women.

Of 221 women interviewed, 67 (30%) regularly took pills containing 0.4 mg folic acid. Women with higher educational levels were more likely to take multivitamins with folic acid than were the less educated (p=0.05). Of the women who took folic acid, only 5 (7.5%) used separate folic acid tablets, before and during their pregnancy. The rest used multivitamins containing folic acid. The 5 women who took folic acid separately were college-educated and nonreligious, and they took multivitamins in addition (p>0.05).

Of the women interviewed, 58 (26.2%) were Bedouin of the Negev. 24 (41.4%) of them took pills containing folic acid on a regular basis. This percentage is higher than that in the Jewish women in the study who took folic acid for prevention of NTD (17%; p=0.038).

Most of the women took folic acid after the first trimester. Only a minority took daily periconceptional folic acid. Multivitamins containing 0.4 mg of folic acid were more popular than folic acid tablets alone. This study emphasizes the need for continuing efforts to increase consumption of folic acid and awareness of its benefits among women of childbearing age.

Atrophic Gastritis Presenting with Pulmonary Embolism

Muhammad A. Abdul-Ghani, Rima Feldman, Moshe Shai, Jacob Varkel

Dept. of Medicine C, Western Galilee Hospital, Naharia

Atrophic gastritis is an autoimmune gastropathy in which there is destruction of gastric parietal cells. This results in intrinsic factor deficiency and disturbance in vitamin B12 absorption. Its clinical manifestationa are therefore the consequences of B12 deficiency and include anemia and neurological defect. In addition, lack of B12 results in metabolic changes, including disturbances of methionine metabolism and accumulation of homocysteine.

In recent years, there has been increasing evidence suggesting that hyperhomocysteinemia is a risk factor for thrombo-embolic disease. We describe a 51-year-old man with atrophic gastritis, severe B12 deficiency and hyperhomocystein-emia. The initial clinical manifestation was pulmonary embolism, without either anemia or neurological signs. B12 deficiency should therefore be considered in patients being investigated for hypercoagulability.

Advantages of Standardized Protocol for Oral Rehydration in Acute Pediatric Gastroenteritis

Avi Weizman, Ahmed Alsheikh, Laura Herzog, Asher Tal, Rafael Gorodischer

Pediatric Depts. A and B, Soroka Medical Center; and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheba

Oral rehydration (OR) for acute gastroenteritis in infants and children has been shown to be as effective as IV therapy, with less discomfort and lower costs. In this retrospective study we compared 2 pediatric wards, in 1 of which only a standardized, simplified, bedside protocol, based on American Academy of Pediatrics guidelines, was used.

There were no significant clinical characteristics in the 208 patients. In the ward which used the above protocol, OR utilization was significantly more frequent than in the other ward (48% versus 15%), thus saving equipment costs of nearly $1,000/3 months. There were no significant differences in outcome between the wards.

We conclude that introducing a standardized management protocol may increase OR utilization in hospitalized children with acute diarrhea.
 

Pulmonary Adenocarcinoma in Myasthenia Gravis - Auto-Immunity and Late Development of Malignancy

Yitzhak Rosen, Yair Levy, Yehuda Shoenfeld

Dept. of Internal Medicine B, Sheba Medical Center, Tel Hashomer and Sackler Faculty of Medicine, Tel Aviv University

We report a 75-year-old man with myasthenia gravis for many years, who was hospitalized because of cough, fever, and dyspnea. Chest x-ray revealed a bilateral pleural effusion. Adenocarcinomatous cells were found in the pleural fluid. Computerized tomography of the chest showed widespread pulmonary dissemination of the tumor.

The relationship between myasthenia gravis, an autoimmune disease involving the motor end-plate, and malignancy (thymoma) has been widely recognized. Current literature documents few reports of lung malignancies with concurrent development of myasthenia gravis. A tentative explanation, based on current research, is provided for the possible role of myasthenia gravis and the late development of lung cancer. Moreover, a model for the autoimmune phenomenon and the development of late malignancies will be provided with explicit explanations. It is important to search for occult, developing malignancies in newly diagnosed autoimmune diseases.

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.

Alopecia Due to Seroxat 

Leonid Umansky, Abraham Dorevitch, Avner Sella

Psychiatry Chronic Dept., Eitanim Mental Health Center, Jerusalem

There are 2 stages of alopecia, anagen and telogen effluvium, both of which may be associated with medication- related alopecia. We describe massive hair loss in a 51-year-old woman during treatment with Seroxat (paroxetine), which remitted after it was discontinued. Pathological mechanisms of drug-associated alopecia are complex and have yet to be fully elucidated.

Acute Ischemia of the Lesser Gastric Curvature 

D. Czeiger, A. Ariche, G. Shaked, N. Sion-Vardi, I. Levi

Trauma Service, Dept. of Surgery, and Pathology Institute, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer Sheba

The rich blood supply of the stomach protects it from ischemia and necrosis. Acute gastric ischemia, an emergency with high mortality, is rare. Atherosclerosis is the leading cause of acute ischemia, and the lesser curvature of the stomach is more vulnerable due to its relatively lesser blood supply. Reduction in gastric blood supply usually presents as chronic disease characterized by gastritis, gastric ulcer, or gastroparesis.

Gastroscopy can identify lesions of the gastric mucosa, and angiography demonstrates occluded vessels. Treatment of acute gastric ischemia is surgical, with total gastrectomy preferred over partial resection.

Laparoscopic Adrenalectomy 

G. Zamir, D. Hazzan, D.J. Gross, S. Lyass, O. Jurim, E. Shiloni, P. Reissman

Depts. of Surgery, Endocrinology and Metabolism, Hadassah University Hospital, Ein-Kerem, Jerusalem

Constant advances and increasing experience in laparoscopic surgery renders it applicable for adrenal surgery. The wide exposure required for open adrenal surgery makes this minimally invasive procedure an attractive and advantageous alternative.

Between 1996-1999, we performed 35 laparoscopic adrenal-ectomies in 30 patients 20-72-years old. Indications included: Conn's syndrome - 14, pheochromocytoma - 11, Cushing's syndrome - 6, nonfunctioning adenoma - 3, and metastatic sarcoma - 1.

5 underwent bilateral laparoscopic adrenalectomy. In 3 (8.5%) the procedures were converted to open operations. Overall morbidity was 13% and there was no mortality. Mean operative time was 188 minutes, but only 130 in our last 10 cases. Mean hospital stay was 4 days and they returned to normal activity an average of 2 weeks later.

According to our study and previous reports, laparoscopic adrenalectomy is feasible and safe and it may soon become the procedure of choice for adrenal tumors.

High Dose Endobronchial Brachy - Therapy for Malignant Airway Obstruction

Alex Yarmolovsky, Alan Katz, Eyal Fenig, G. Fink, Daniel Bendayan, Aaron Sulkes, Mordechai R. Kramer

Institutes of Pulmonology and Oncology, Rabin Medical Center, Beilinson Campus, Petah Tikva, and Sackler Faculty of Medicine, Tel Aviv University

Brachytherapy is especially suitable for palliative treatment of endobronchial tumors adjacent to internal organs that might be damaged by intensive external beam radiation, but are easily accessed with a flexible bronchoscope. This treatment is mostly palliative.

30 patients underwent such palliative high-dose endobronchial brachytherapy to alleviate malignant airway obstruction. With the aid of a flexible fiberoptic bronchoscope an endobronchial catheter was inserted adjacent to the tumor and treatment delivered using a 192Ir remote afterloader for 5-10 min, in 2 or 3 sessions.

There was symptomatic improvement in 26 (86%) and objective improvement in 27 (90%). 1 patient died of hemoptysis.

Tubulo-Interstitial Nephritis and Uveitis - TINU Syndrome

Paz Yitzhaki

Dept. of Medicine A, Rambam Medical Center, Haifa

Acute tubulo-interstitial nephritis and uveitis (TINU syndrome) in a 53-year-old woman is reported. This rare syndrome was described 27 years ago by Dobrin et al. Since then about 50 cases have been described. The syndrome can appear at any age but most patients are under 20 years; about 75% are females. Clinical characteristics include fatigue, general malaise, weight loss, fever, night sweats, anorexia, nausea and vomiting, pallor, nocturia, polyuria, arthralgia and skin rash. Ocular involvement usually includes anterior uveitis but is sometimes posterior; in most cases the uveitis is bilateral.

The characteristic laboratory findings are anemia, rapid sedimentation rate, decreased glomerular filtration rate with increased serum creatinine and urea. Total protein is increased because of polyclonal gammopathy and elevated b2-microglobulin. Urinalysis characteristically reveals proteinuria and b2-microglobulinuria. The histopathologic features on renal biopsy are characteristic of tubulo-interstitial nephritis. Uveitis can precede, accompany or follow onset of the nephropathy.

The pathogenesis and etiology of the syndrome are as yet unknown. Treatment consists of large doses of corticosteroids, but the necessity for treatment is unclear, since there is evidence of spontaneous improvement. Although the prognosis of the nephropathy is favorable and most cases are reversible, the uveitis tends to recur.

Cortical Blindness Following Coronary Angiography 

Addie Ron, Simcha Meisel, Myra Shapiro-Feinberg,Herman O. Klein

Depts. of Medicine, Cardiology and Diagnostic Imaging,Meir Medical Center, Kfar Saba

Cortical blindness has been occasionally reported as a complication after cerebral angiography, but is rare after coronary angiography. The contrast agent is believed to be responsible for the sudden development of blindness. Although the exact mechanism is unknown, it appears that the contrast agent disrupts the blood brain barrier, mostly in the occipital areas.

We report a 77-year-old man who suddenly developed transient, bilateral cortical blindness 4 hours after coronary angiography. Using contrast enhancement, the CT scan showed typical, symmetrical involvement of both occipital lobes. There were no other neurological deficits. Vision and CT findings returned to normal within 48 hours.