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December 2021
Galit Hirsh-Yechezkel PhD, Angela Chetrit MHA, Sivan Ben Avraham MSc, Abed Agbarya MD, Alexander Yakobson MD, Noam Asna MD, Gil Bar-Sela MD, Irit Ben-Aharon MD PhD, Noa Efrat Ben-Baruch MD, Raanan Berger MD PhD, Ronen Brenner MD, Maya Gottfried MD, Shani Paluch-Shimon MBBS MSc, Raphael Pfeffer MD, Aron Popovtzer MD, Larisa Ryvo MD, Valeriya Semenisty MD, Ayelet Shai MD PhD, Katerina Shulman MD, Jamal Zidan MD, and Ido Wolf MD

Background: The increased susceptibility of cancer patients to coronavirus disease-2019 (COVID-19) infections and complications calls for special precautions while treating cancer patients during COVID-19 pandemics. Thus, oncology departments have had to implement a wide array of prevention measures.

Objectives: To address issues associated with cancer care during the COVID-19 pandemic and to assess the implementation of measures aimed at containment of COVID-19 diffusion while allowing continuation of quality cancer care.

Methods: A national survey among oncology departments in Israel was conducted between 12 April 2020 and 14 April 2020. Eighteen heads of hospital-based oncology departments completed a self-report questionnaire regarding their institute's preparedness for treatment of cancer patients during the COVID-19 pandemic.

Results: In this national survey, prevention measures against COVID-19 spread were taken prior to patients' arrival and at arrival or while staying in the departments. Most participants (78–89%) reported using a quick triage of patients and caregivers prior to their entrance to the oncology units, limiting the entrance of caregivers, and reducing unnecessary visits to the clinic. Switching to oral therapies rather than intravenous ones when possible was considered by 82% and shortage in personal protective equipment was reported by five (28%) heads of oncology departments. Some differences between large and small/medium sized medical centers were observed regarding issues related to COVID-19 containment measures and changes in treatment.

Conclusions: Oncology departments in Israel were able to prepare and adapt their services to guidelines and requirements related to the COVID-19 pandemic with little harm to their treatment capacity

December 2013
Osamah Hussein, Jamal Zidan, Michael Plich, Hana Gefen, Roberto Klein, Karina Shestatski, Kamal Abu-Jabal and Reuven Zimlichman

Background: Coronary slow flow phenomenon (CSFP) is a functional and structural disease that is diagnosed by coronary angiogram.    



Objectives: To evaluate the possible association between CSFP and small artery elasticity in an effort to understand the pathogenesis of CSFP.

Methods: The study population comprised 12 patients with normal coronary arteries and CSFP and 12 with normal coronary arteries without CSFP. We measured conjugated diene formation at 234 nm during low density lipoprotein (LDL) oxidation, as well as platelet aggregation. We estimated, non-invasively, arterial elasticity parameters. Mann-Whitney non-parametric test was used to compare differences between the groups. Data are presented as mean ± standard deviation.

Results: Waist circumference was 99.2 ± 8.8 cm and 114.9 ± 10.5 cm in the normal flow and CSFP groups, respectively (P = 0.003). Four patients in the CSFP group and 1 in the normal flow group had type 2 diabetes. Area under the curve in the oral glucose tolerance test was 22% higher in the CSFP than in the normal group (P = 0.04). There was no difference in systolic and diastolic blood pressure, plasma concentrations of total cholesterol, triglycerides, high density lipoprotein, LDL and platelet aggregation parameters between the groups. Lag time required until initiation of LDL oxidation in the presence of CuSO4 was 17% longer (P = 0.02) and homocysteine fasting plasma concentration was 81% lower (P = 0.05) in the normal flow group. Large artery elasticity was the same in both groups. Small artery elasticity was 5 ± 1.5 ml/mmHgx100 in normal flow subjects and 6.1 ± 1.9 ml/mmHgx100 in the CSFP patients (P = 0.02).

Conclusions: Patients with CSFP had more metabolic derangements. Arterial stiffness was not increased in CSFP.

August 2003
E. Rosenblatt, N. Meushar, R. Bar-Deroma, K. Drumea, M. Stein, J. Zidan and A. Kuten

Background: There are radiobiologic and technical advantages to the use of interstitial brachytherapy alone or as an adjunct to external beam radiotherapy in the postoperative treatment of soft tissue sarcomas.

Objectives: To review the experience of the Rambam Medical Center in implementing interstitial brachytherapy in the treatment of 32 patients with soft tissue sarcomas.

Methods: Thirty-two patients with variously located soft tissue sarcomas were managed with a combination of surgery and brachytherapy of the tumor bed, with or without EBRT[1]. In 27 of 32 patients, brachytherapy catheters were placed intraoperatively, while in 5 patients the implant was performed as a separate postoperative procedure. Twenty-seven patients received low dose-rate brachytherapy with iridium-192 seeds. Five patients received fractionated high dose-rate brachytherapy using the microSelectron machine.

Results: With a median follow-up of 36 months, the overall local control rate was 87.5%. Four of 32 patients (13%) failed locally at the implant site, and 6 (19%) developed lung metastasis. Two of the five patients with lung metastasis had a local recurrence as well. At the time of analysis, eight patients had died of sarcoma (disease-specific mortality rate was 25%), while three had died of intercurrent causes. The 5 year actuarial disease-free survival rate was 56%, and the 5 year actuarial overall survival was 70%. Five patients (16%) developed severe wound complications following surgery/brachytherapy, and six patients (19%) developed late local toxicity (fibrosis and telangiectasia).

Conclusions: Wide local excision followed by interstitial brachytherapy has resulted in an 87.5% local control rate with a 17% local complication rate.

__________________________________________


[1] EBRT = external beam radiotherapy


August 2002
Jamal Zidan, MD, Shifra Zohar, MD, Ioram Mezerecki, MD, Stefan Kral, MD and Boris Bilenca, MD

Background: The treatment of patients with recurrent ovarian carcinoma after failure of first and second-line chemotherapy is still debated. Chemical agents used for third and fourth-line therapy usually yield poor results with severe toxic side effects.

Objective: To summarize our experience with goserelin in the treatment of patients with recurrent ovarian cancer.

Methods: From September 1996 to June 1999 we administered goserelin, 3.6 mg subcutaneously every 4 weeks, to 15 patients with advanced and recurrent epithelial ovarian cancer (median age 59.0, median performance status 3.0).

Results: Seven of 15 eligible patients relapsed after platinum-based chemotherapy (3 of them also received paclitaxel and another 2 received tamoxifen). Four patients relapsed after carboplatin and paclitaxel, one of whom was treated with topotecan thereafter. Two patients relapsed after single-agent paclitaxel. Two patients with advanced disease and poor performance status without previous treatment received only goserelin. There was one complete response (6.7%) and 1 partial response (6.7%) lasting 8 and 14 months respectively (overall response rate 13.4%). In addition, the disease stabilized in three patients (20%) for a median of 7.5 months. In 10 patients the disease progressed. There was no significant toxicity. Median survival of all patients was 5.8 months.

Conclusion: Goserelin was helpful in one-third of our patients with advanced and refractory ovarian cancer. It is an easy and non-toxic option for treating very ill or previously heavily treated patients.
 

April 2001
Jamal Zidan, MD, Wolf Robenstein, MD, Amira Abzah, RN and Sigalit Tamam, RN

Background: Classic Kaposi's sarcoma is a rare tumor with an indolent behavior. Local therapy is not applicable in disseminated cutaneous disease. Patients with advanced disease are usually treated with systemic chemotherapy.

Objectives: To assess the effectiveness and toxicity of  single-agent vinblastine in the treatment of disseminated and recurrent Kaposi's sarcoma.

Methods: Ten patients with wide cutaneous spread of classic Kaposis sarcoma were treated with single-agent vinblastine, 6 mg/m2 intravenously once every 2 weeks. Vinblastine was continued for 2 months after achieving a maximal response.

Results: The male:female ratio was 2.3:1, and median age 64 years (range 50-79 years). The median number of involved nodules in the skin was 34. The overall response rate was 90%, 5 with complete response (50%) and 4 with partial response (40%). Complete responders had a longer duration of response than partial responders: 41.2 vs. 14.8 months. The median survival of all patients was 33 months. Side effects were minimal and tolerable.

Conclusions: Vinblastine is very effective in the treatment of extensive classic Kaposi's sarcoma, and results in a high response rate, long survival and disease-free survival with tolerable toxicity.

October 1999
Edward Rosenblatt MD, Jamal Zidan MD, Ofer Ben-Izhak MD and Abraham kuten MD
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