Video-Assisted Thoracic Surgery: Experience with 586 Patients

R. Galili, N. Nesher, R. Sharony, G. Uretzy, M. Saute

Dept. of Cardiothoracic Surgery, Carmel Medical Center and Rappaport Faculty of Medicine, Technion, Haifa

Recent advances in optics, video systems and endoscopic operating instruments have led to increasing application of thoracoscopic surgery, as it has become easier to perform and more accurate.

We performed 586 video-assisted thoracic surgical procedures for diagnosis and treatment (May 1992-Dec. 1998) 127 were for diagnostic thoracoscopy and 79 for pleurodesis. 380 cases of operative thoracoscopy included pulmonary wedge resection (for interstitial lung disease, benign and malignant pulmonary tumors and pulmonary metastases) bullectomy, management of empyema, pleural tumor biopsy, thoracic sympathectomy, pericardial window formation, thoracic spinal procedures and resection of posterior mediastinal cysts. Recently we have had good experience in evacuating blood and blood clots from the thorax which accumulated after cardiac and thoracic surgery.

Patients were placed in the lateral thoracotomy position and were ventilated with a double-lumen endotracheal tube, enabling collapse of the operated lung. The operating approach was through 1-3 thoracic ports. Mean operation time was 55 minutes, chest-tubes remained for 2.2 days (mean) and mean hospitalization was 3.3 days. There were no wound infections or significant postoperative complications. 5 patients had air leaks longer than 7 days; none required further surgical intervention.

There was intercostal neuralgia and Horner's syndrome after thoracic sympathectomy (1 each) In cases in which localizing the parenchymal lesion was difficult, the lung was palpated directly by inserting a finger through a small incision or a mini-thoracotomy. Conversion to thoracotomy was performed when primary malignancy of lung was diagnosed by frozen section. Only 2 patients had thoracotomy for uncontrolled bleeding. Thoracoscopy is a minimally invasive surgical technique with very low morbidity and high diagnostic accuracy. Postoperative recovery is brief and uneventful.
 

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.

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.

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.

Laparoscopic Ultrasound in Predicting Resectability of Choriocarcinoma

M. Shimonov, P. Schachter, G. Gvirtz, Y. Avni, A. Rosen, A. Czerniak

Depts. of Surgery, Ultrasound, and of Gastroenterology, Wolfson Medical Center, Holon and Sackler Faculty of Medicine, Tel Aviv University

Cholangiocarcinoma accounts for about 1% of all malignant tumors. They are difficult to diagnose because of their small size and their location. Although surgical resection is the best therapeutic approach, most patients undergo unnecessary exploratory laparotomy due to incorrect preoperative diagnosis.

We present our experience with laparoscopic ultrasound (LU) in the evaluation of cholangiocarcinoma and determination of tumor spread and vascular involvement. Of 25 patients referred for surgery, 6 were excluded following LU and were referred instead for palliative treatment. Diagnosis of the tumor was successful in 92%, and vascular involvement was diagnosed in 46%. LU should be an integral diagnostic test in the evaluation of choriocarcinoma.

Specialty Clinics - Gain or Loss?

Natalya Bilenko, Luna Avnon, Fanya Shimonovich, Dov Heimer

Epidemiology Dept.; and Pulmonary Unit of Soroka Medical Center; Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheba

We evaluated the significance of first visits to our pulmonary clinic with regard to diagnosis and treatment by reviewing records of 287 new referrals by medical care providers (Sept. 1998 - Feb. 1999). At the first visit the diagnosis was changed in 30%, and treatment in 40%. These are minimal figures because evaluation had not been completed nor the diagnosis determined in all cases, while further investigation and follow-up continued.

In light of these findings, we believe that recent pressure on primary care physicians to avoid referrals to specialty clinics would result in short-term savings, but in the long term, would increase expenses and diminish quality of care. It is important to consider ways to maximize the interaction between the primary care physician and the specialist to maintain quality of care and decreases costs.

Breast Tumors Demonstrated by Tc-99m Sestamibi Scintimammography 

Itzhak Pappo, Tifha Horne, Herbert Merdad, Ruben Orda

Dept. of Surgery A, Institute of Nuclear Medicine and Dept. of Pathology, Assaf Harofeh Medical Center, Zrifin; and Sackler Faculty of Medicine, Tel Aviv University

Breast cancer can be detected by scintimammography using Tc-99m sestamibi (MIBI). The method is highly accurate, sensitive and specific. Histologically, most of the tumors have been adenocarcinomas.

We present 2 women with rare breast tumors, primary squamous cell carcinoma and malignant phyllodes tumor. In both, mammography and cytological biopsy were not diagnostic, but MIBI scintimammography demonstrated focal uptake in the diseased breast.

Thallium Scan and Pulmonary Carcinoma 

Adam Mor, Amit Segev, Rami Herskoviz, Yoseph A. Mekori

Dept. of Medicine B, Meir General Hospital, Kfar Saba Affiliated with Sackler Faculty of Medicine, Tel Aviv

A 70-year-old man was admitted for exacerbation of congestive heart failure. In his assessment thallium scan of the heart was performed. An incidental finding was a focus of absorption in the right lung. The lesion was later diagnosed as adenocarcinoma based on the cytological findings.

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.

Cilazapril for Essential Hypertension Treated in the Community 

Reuven Zimlichman

Dept. of Medicine and Hypertension Institute, Wolfson Medical Center and Sackler Faculty of Medicine, Tel Aviv University

In a multicenter study in community clinics, 413 patients with mild to moderate essential hypertension were treated with cilazapril (Vasocase), 2.5 mg daily. Patients had either been untreated or had developed side-effects from previous antihypertensive treatment. When response was inadequate the dose was either increased to 5 mg or another antihypertensive medication was added, or both.

Treatment significantly reduced systolic and diastolic blood pressures. Pulse rate decreased significantly from the second month of treatment onwards. At the end of the 3rd month of treatment blood pressure was normalized or had decreased by more than 10 mmHg in 91.9% of patients. Physicians' evaluations revealed improvement in 62%; patients' self-evaluations suggested improvement in 61%. Efficacy was equal in all age groups and in both obese and nonobese patients. Antihypertensive response was superior in those with normal renal function. Side-effects were rare and similar to those reported in the literature.

Diabetic Ketoacidosis during the Ramadan Fast 

I. Friedrich, Y. Levy

Dept. of Medicine A, HaEmek Medical Center, Afula, and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa

We report a 15-year-old Muslim boy with insulin-dependent diabetes mellitus (IDDM) who presented with diabetic ketoacidosis (DKA) during the Muslim Ramadan month of day-time fasting. DKA apparently occurred due to omitting pre-lunch insulin combined with dehydration and overeating during the permitted sunset-to-sunrise meals.

It is well-known that fasting accelerates development of lipolysis and ketosis and increases glucagon levels. Thus, these pathophysiological aberrations related to fasting in ketosis-prone patients, in conjunction with fasting, endanger metabolic control in IDDM.

Hemorrhoidectomy Using A Circular Stapler 

Asaf Levanon, Arie Biterman, A. Behar, Oded Cohen

Dept. of Surgery A, Carmel Medical Center, Haifa

We compared traditional local excision of hemorrhoids in 40 patients (group A) with excision using the CDH-33 surgical stapler designed for bowel anastomosis, in 41 (group B). In this technique a purse-string suture is prepared 3 cm above the dentate line, and the stapler is inserted and used to form a mucosa-mucosal anastomosis. This technique is less time-consuming than the traditional technique.

Data were collected from patients' medical files and from detailed questionnaires in which symptoms prior to and after operation were reported. Mean ages were 53.0 and 51.5 years and male/female ratios were 1.0:1.2 and 1.0:1.1 respectively, neither significant. The most common complaints in both groups were pain and rectal bleeding. All patients had a lower-GI investigation prior to operation to exclude other causes of rectal bleeding.

Recovery averaged 2 months in both groups. Patient satisfaction was assessed by decrease or absence of symptoms on return to normal daily activities. Satisfaction tended to be greater in group B. More patients in group A complained of tightness and discomfort at the operative site, but this was not significant.

We are extending our study to a larger number of patients to determine if there are statistically significant differences between the results of the 2 methods.

Malaria in Travelers Returning from Endemic Areas

Andre Matalon, Amos Yinnon

Kupat Cholim Klalit, Dan-Petah Tikva District, and Dept. of Family Medicine, Tel Aviv University; and Infectious Disease Unit, Shaare Zedek Hospital and Hebrew University-Hadassah Medical School, Jerusalem

2 cases of malaria in family practice are described in a 26- and a 50-year-old woman. Both probably could have been prevented had common chemoprophylactic drugs been taken. The risk of malaria is greater than the risk of possible side-effects of the drugs commonly used by travelers for prevention. Family physicians must be aware of the possibility of malaria in young people with fever, especially those who have travelled to equatorial areas and special attention should be given to encourage chemoprophylaxis.

Referrals and Self-Referrals to an Emergency Department

Sasson Nakar, Shlomo Vinker, Yaacov Or, Mordechai Schadel, Yosi Niego, Gavriel Plotkin

Central District of General Sick Fund and Family Medicine Dept., Sackler Faculty of Medicine, Tel Aviv University, and Emergency Dept., Kaplan Medical Center, Rehovot (Affiliated with Hebrew University-Hadassah Faculty of Medicine, Jerusalem)

The Israeli health system has been undergoing major changes in recent years. Considerations of cost containment have led sick funds to open new out-of-hours services in the community to reduce visits to hospital emergency departments.

Referred and self-referred visits to our emergency department during a 1-month period were studied. Patients after trauma or whose visits resulted in hospitalization were excluded. Of the 505 encounters 56.3% were of women; the average age was 52.5±19.3 years (range 18-96). 57.4% visits were during working hours of primary care clinics ("working hours"), while the others were "out-of-hours" visits. Only 52.7% had a referral letter, 75% of them from the family physician. The quality of the handwriting in 46% was good, in 44% fair and the remaining 10% were illegible. A specific clinical question was asked in only 16% of the letters. A third of "working-hours" visits were self- referrals, rising to 64% in "out-of-hours" visits (p<0.001).

The most common diagnoses in discharge letters were: chest or abdominal pain, asthma, back pain, headache, nephrolithiasis and upper respiratory tract infection. The rate of self-referrals was relatively high throughout the day. Cost-containment efforts did not seem to eliminate self-referrals with "primary care" problems. The quality of referral letters should be improved both with regard to format and content.