Biomedical subjects

Leonid A Eidelman

Publications and source records attributed to Leonid A Eidelman.

10 recordsLinked to original sources

PubMed2006

Spinal cord ischemia following thoracotomy without epidural anesthesia.

PURPOSE: Paraplegia is an uncommon yet devastating complication following thoracotomy, usually caused by compression or ischemia of the spinal cord. Ischemia without compression may be a result of global ischemia, vascular injury and other causes. Epidural anesthesia has been implicated as a major cause. This report highlights the fact that perioperative cord ischemia and paraplegia may be unrelated to epidural intervention. CLINICAL FEATURES: A 71-yr-old woman was admitted for a left upper lobectomy for resection of a non-small cell carcinoma of the lung. The patient refused epidural catheter placement and underwent a left T5-6 thoracotomy under general anesthesia. During surgery, she was hemodynamically stable and good oxygen saturation was maintained. Several hours following surgery the patient complained of loss of sensation in her legs. Neurological examination disclosed a complete motor and sensory block at the T5-6 level. Magnetic resonance imaging (MRI) revealed spinal cord ischemia. The patient received iv steroid treatment, but remained paraplegic. Five months following the surgery there was only partial improvement in her motor symptoms. A follow-up MRI study was consistent with a diagnosis of spinal cord ischemia. CONCLUSION: In this case of paraplegia following thoracic surgery for lung resection, epidural anesthesia/analgesia was not used. The MRI demonstrated evidence of spinal cord ischemia, and no evidence of cord compression. This case highlights that etiologies other than epidural intervention, such as injury to the spinal segmental arteries during thoracotomy, should be considered as potential causes of cord ischemia and resultant paraplegia in this surgical population.

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PubMed2006

The Israeli anesthesiology physician workforce.

BACKGROUND: Anesthesiology is a vital specialty that permits the safe and humane performance of painful procedures. Most Israeli anesthesiologists are immigrants, while only a minimal number of Israeli medical school graduates enter the specialty. Unfortunately, the supply of immigrant physicians is declining due to falling immigration rates. OBJECTIVES: To examine the current Israeli anesthesiology workforce and project future needs. METHODS: Demographic and professional information about Israeli hospital anesthesiologists was solicited from anesthesiology department heads. Data were also gathered about the past, present and projected future growth, age distribution and birth rate of the Israeli population. Needs and demand-based analyses were used to project future anesthesiology workforce requirements. RESULTS: Data on 711 anesthesiologists were obtained from 30 hospital anesthesiology department heads. Eighty-seven anesthesiologists (12.2%) graduated from Israeli medical schools and 459 (64.6%) graduated from medical schools in the former Soviet Union. Among the 154 anesthesiology residents < or = 40 years old, only 13 (8.4%) graduated from Israeli medical schools. There are approximately 10.8 anesthesiologists per 100,000 population. Projections for 2005-2015 revealed a need for 250-300 new anesthesiologists. CONCLUSIONS: The anesthesiology workforce is predominantly composed of immigrants. This has vast implications for the future viability of the specialty because of the continuing reduction in immigration, the lack of interest in the specialty by Israeli medical school graduates, and the projected need for many new anesthesiologists to replace retirees and to provide care to a growing and aging population.

Adult↗

PubMed2005

Ischemic preconditioning increases antioxidants in the brain and peripheral organs after cerebral ischemia.

BACKGROUND AND PURPOSE: Low molecular weight antioxidants (LMWA), which reflect tissue reducing power, are among the endogenous mechanisms for neutralizing reactive oxygen species (ROS). Ischemic preconditioning (IPC) was associated with decreased oxidative stress. We examined the effect of focal ischemia on LMWA and on prostaglandin E(2) (PGE(2), a product of arachidonic acid oxidation) in the brain, heart, liver, and lungs of rats subjected to 90 min of ischemia and in IPC rats subjected to similar insult. METHODS: Transient right middle cerebral artery occlusion (MCAO) was performed for 90 min and at 0, 5, 30, 60, or 240 min of reperfusion, LMWA and PGE(2) were evaluated by cyclic voltametry (CV) and radioimmunoassay, respectively. IPC was induced by 2 min of MCAO, 24 h prior to the major ischemic episode. RESULTS: LMWA decreased at 5 min of reperfusion in the brain, heart, liver, and lung and rose 4 h later only in the brain. PGE(2) levels increased three to fivefold in all tissues examined. Surprisingly, in IPC rats a dramatic increase of LMWA occurred at 5 min of reperfusion in the brain and in the peripheral organs. Uric acid, but not ascorbic, is the major LMWA increased. CONCLUSIONS: We propose that after ischemia, ROS rapidly consume the antioxidants reserves in the brain and also in peripheral organs, suggesting that the whole body is under oxidative stress. Moreover, part of the neuroprotection afforded by IPC is mediated by the brain's ability to mobilize antioxidants, especially uric acid, that attenuate the massive ROS-mediated oxidative stress.

Animals↗

PubMed2005

[Anesthesia for aesthetic surgery].

Anesthesia for aesthetic surgery has changed along with the development in plastic surgery during the last two decades. This is the first report of a large series of anesthesia conducted for aesthetic surgery in Israel. The article presents the experience of ten thousand procedures performed during the last four years. Although the prevalence of extensive surgery and complicated patients has increased, no anesthetic-related mortality and only minor morbidity have occurred. Methods of anesthesia and prevention of complications are described. Specific approaches for some potentially dangerous procedures are discussed.

Anesthesia↗

PubMed2004

Efficacy of transdermal nitroglycerin combined with etodolac for the treatment of chronic post-thoracotomy pain: an open-label prospective clinical trial.

Chronic post-thoracotomy pain (CPP) is associated with surgical intercostal nerve injury. Like other forms of neuropathic pain, there is no ideal treatment. Nitroglycerin (NTG) has been found efficacious in acute pain, but has not been tested for chronic pain with neuropathic characteristics. The present study investigated the efficacy of NTG combined with the nonsteroidal anti-inflammatory drug etodolac for the treatment of CPP. Thirty of 129 patients who underwent thoracotomy within an 18-month period had moderate to severe pain that did not respond to etodolac. NTG, 5 mg/day, was added to the treatment. A significant reduction in VAS was observed on day 14 of treatment (from 66.7 +/- 11 to 42.1 +/- 5, P< 0.05). Similar changes were noted in breakthrough pain intensity and and sleep efficiency. The only side effect was mild headache, which was self-limited to the first few days of NTG administration. We conclude that NTG added to etodolac appears to be effective for the treatment of CPP, with minimal side effects. Further randomized blinded studies are required.

Administration, Cutaneous↗

PubMed2004

Evaluation of changes in forgoing life-sustaining treatment in Israeli ICU patients.

INTRODUCTION: Over the last several years, there have been legal decisions and changes in medical directives concerning end-of-life decisions in Israel. METHODS: The data were compared to evaluate the changes in the frequency and types of forgoing of life-sustaining treatment (FLST) in patients who were admitted to the ICU during period I (November 1994 to July 1995) and period II (January 1998 to January 1999). RESULTS: During period I, there were 385 ICU admissions, and during period II there were 627 ICU admissions. In period I, FLST or death occurred in 13.5% of patients, and in 12% in period II. There was no significant difference in cardiopulmonary resuscitation (9% vs 13%, respectively), withholding therapy (90% vs 91%, respectively), or withdrawing therapy (0% vs 0%, respectively) between the two study periods. CONCLUSIONS: There was no significant change in the frequency or types of FLST in an Israeli ICU between 1994 and 1998, despite passage of a new Patients' Rights Law and the issuing of a Ministry of Health directive on the treatment of the terminally ill, both of which occurred in 1996, and recent district court decisions favoring the termination of life-sustaining therapies.

Cardiopulmonary Resuscitation↗

PubMed2003

End-of-life intensive care unit decisions, communication, and documentation: an evaluation of physician training.

PURPOSE: The majority of patients dying in intensive care units (ICUs) do so after the forgoing of life-sustaining therapies (FLST). Communication between physicians, patients, and their families regarding the decision to FLST has not been evaluated in Israel. MATERIALS AND METHODS: All patients who had FLST in a general ICU were enrolled in the study. We evaluated whether physicians communicated and documented the FLST decisions with patients or the patients' families. We also assessed the effect of the physician's geographic place of training on communication behavior. RESULTS: Over a period of 8.5 months, 385 patients were admitted to a general ICU in Israel. Fifty-seven patients died or had FLST. Twelve of these 57 were excluded from the study. Thus, 45 (79%) patients had FLST and were enrolled in the study. All patients were deemed medically incompetent to make FLST decisions. In 24 (53%) patients, FLST was discussed with the family before the decision to forgo therapy. Discussion occurred later with 6 other families, who were unavailable at the time the FLST decision was made. In 15 patients, there were no discussions with families. American-trained physicians discussed FLST with 22 of 29 families initially and 5 other families later (93%), whereas the Eastern European-trained physicians discussed FLST with only 3 of 16 (19%) families (P <.001). Documentation of FLST was present in 26 (90%) patients of American-trained physicians and 8 (50%) patients of Eastern European-trained physicians (P <.001). CONCLUSIONS: FLST is common in an Israeli ICU. Patients are not medically competent to make FLST decisions. American-trained physicians discuss and document FLST more often than Eastern European-trained physicians.

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PubMed2002

Premedication with midazolam in young children: a comparison of four routes of administration.

BACKGROUND: We undertook a study to determine the effects of four routes of administation on the efficacy of midazolam for premedication. METHODS: In a randomized double-blind study, 119 unmedicated children, ASA I-II, aged 1.5-5 years, who were scheduled for minor elective surgery and who had been planned to received midazolam as a premedicant drug, were randomly assigned to one of four groups. Group I received intranasal midazolam 0.3 mg.kg-1; group II, oral midazolam 0.5 mg x kg(-1); group III, rectal midazolam 0.5 mg x kg(-1); and group IV, sublingual midazolam 0.3 mg x kg(-1). A blinded observer assessed the children for sedation and anxiolysis every 5 min prior to surgery. Quality of mask acceptance for induction, postanaesthesia care unit behaviour and parents' satisfaction were evaluated. Thirty patients were enrolled in each of groups I, III and IV. Twenty-nine patients were enrolled in group II. RESULTS: There were no significant differences in sedation and anxiety levels among the four groups. Average sedation and anxiolysis increased with time, achieving a maximum at 20 min in group I and at 30 min in groups II-IV. Patient mask acceptance was good for more than 75% of the children. Although the intranasal route provides a faster effect, it causes significant nasal irritation. Seventy-seven percent of the children from this group cried after drug administration. Most parents in all groups (67-73%) were satisfied with the premedication. CONCLUSIONS: Intranasal, oral, rectal and sublingual midazolam produces good levels of sedation and anxiolysis. Mask acceptance for inhalation induction was easy in the majority of children, irrespective of the route of drug administration.

Anesthesia Recovery Period↗

PubMed2002

[Horner's syndrome during epidural analgesia in labor: an alarming sign or a benign phenomenon?].

Horner's syndrome has been reported as a complication of epidural analgesia for labor. In all such cases Bupivacaine 0.5%-0.25% was used. Recently, Bupivacaine of much lower concentration has become a routine anesthetic for labor. We present, for the first time, two parturients who developed Horner's syndrome with diluted Bupivacaine. We suggest that with the absence of other neurological signs, once subdural and subarachnoid injections are excluded, further investigations are not required during the first 24 hours since in most of the cases the Horner's syndrome is due to high rostral spread of the epidural block and disappears within 24 hours. Epidural analgesia can be carefully continued albeit appearance of the syndrome.

Adult↗

PubMedDate not supplied

Uneventful spinal anesthesia for a patient with carcinoid syndrome managed with long-acting octreotide.

PURPOSE: To present a case of spinal anesthesia in a patient suffering from carcinoid syndrome undergoing an inguinal hernia repair. In the past, regional anesthesia was considered unacceptable in these patients because of the possibility of intraoperative hypotension, hypertension, or bronchospasm. Recently, however, the preoperative use of octreotide, the synthetic analogue of the naturally occurring hormone somastatin, has been found to prevent these complications. Nevertheless, it remains unclear whether the use of this drug in patients with carcinoid syndrome allows the possibility of regional anesthesia. CLINICAL FINDINGS: We report the uneventful use of spinal anesthesia in a patient suffering from carcinoid syndrome treated with long-acting octreotide. With careful attention to volume status of the patient and low volume of local anesthetics (10 mg hyperbaric bupivacaine 0.5%) supplemented with intrathecal narcotics (fentanyl 20 micro g), we were able to prevent any episodes of intraoperative hypotension in this patient. Octreotide was available in the operating theatre in case of an emergency. One of the original aspects of this case report is that the patient received long-acting octreotide (once a month administration) instead of the usual daily dose. In addition this is one of the few reports of spinal anesthesia administered to a patient with carcinoid syndrome. CONCLUSION: Preoperative octreotide may result in more favourable conditions for regional anesthesia in patients with carcinoid syndrome. However, further studies will be required to confirm the favourable outcome observed in this patient.

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