Search PubMed⌕ Search

Biomedical subjects

T Ezri

Publications and source records attributed to T Ezri.

At least 19 recordsLinked to original sources

Anaesthetic management of thoracopagus twins with complex cyanotic heart disease for cardiac assessment: special considerations related to ventilation and cross-circulation.

We describe the anaesthetic management of a pair of thoracopagus twins of 14 months of age undergoing complex cardiac evaluation. Synchronous ventilation of the twins, needed for the ECG-gated magnetic resonance imaging-angiography, was achieved through a Carlens (Y) adaptor during procedures and transport. The complex logistical implications are obvious. We also describe the first use of bispectral index monitor for detection of cross-circulation in conjoint twins.

Anesthesia, General↗

Patient-controlled epidural analgesia: the role of epidural fentanyl in peripartum urinary retention.

BACKGROUND: Urinary bladder function is impaired during labor and delivery, predisposing to urinary retention. The effect of low-dose epidural opioid on bladder function remains unclear. We tested the hypothesis that adding low-dose fentanyl to epidural ropivacaine for patient-controlled labor analgesia does not promote urinary retention. METHODS: Laboring women who requested patient-controlled epidural analgesia were randomly assigned in a double blind study to 0.2% ropivacaine (R-group, n=100) or 0.2% ropivacaine with fentanyl 2 microg/mL (RF-group, n=98). Urinary bladder distension was assessed clinically every hour. The post-void residual urine volume was measured by ultrasonography. Urine volume exceeding 100 mL was drained by catheterization. Bladder volume of > or =300 mL, as determined by catheterization was considered as evidence of urinary retention. RESULTS: Thirty percent of the patients in each group developed urinary retention during labor. There was no statistically significant difference between the groups. There was an excellent correlation between bladder volume as estimated by ultrasonography and that by catheterization: catheterization volume=0.93 x ultrasound volume + 25; r(2)=0.83. The bias (mean error) was -1+/-99 mL and the precision (average absolute error) between the ultrasound estimate and actual bladder volume determined by catheterization was 58+/-79 mL. CONCLUSION: Addition of fentanyl to patient-controlled epidural analgesia did not increase the risk of urinary retention. Ultrasound measurements were effective and reliable in assessing urinary bladder volumes during labor.

Adult↗

Use of a new supraglottic airway device--the CobraPLA--in a 'difficult to intubate/difficult to ventilate' scenario.

A 67-year-old male was scheduled for cadaveric renal transplant. Following rapid sequence anaesthesia, only the tip of the epiglottis was visualized. Mask ventilation was difficult, and therefore an alternative airway device was considered. A size 4 CobraPLA (Engineered Medical System, Indianapolis, IN) was inserted into the hypopharynx, and ventilation was easily accomplished. Then, a size 7 endotracheal tube was threaded over a fiberoptic bronchoscope, through the CobraPLA, into the trachea. The description and insertion technique of the CobraPLA, a new supraglottic airway device is shortly discussed. This is the first report of successful management of difficult mask ventilation with the new CobraPLA, supraglottic airway device.

Aged↗

Anesthesia for restrictive bariatric surgery (gastric bypass not included): laparoscopic vs open procedures.

UNLABELLED: Publications regarding anesthetic management for weight reduction surgery are scarce. We reviewed the records of 234 patients who underwent bariatric restrictive procedures (gastric bypass not included) from May 1999 to September 2000. Variables analyzed included demographics, anesthetic data and perioperative course. Patients were allocated into two groups: laparoscopic (LPG) and open procedures (OPG), comprising 167 and 67 patients respectively. Obstructive sleep apnea was present in 4.8% in LPG vs 6.1% in OPG. Awake fiberoptic intubation was performed in 3.6% in LPG and 1.5% in OPG. The other patients were anesthetized with rapid sequence induction (classic or modified). Grade III laryngoscopy was present in 6% in LPG and 7.1% in OPG. No intraoperative complications were encountered. Postoperative PACU follow-up time was similar. In both groups, i.v. meperidine was most frequently used for postoperative analgesia (in the PACU), as compared to the other analgesics employed (P<0.03). Early postoperative complications (prolonged mechanical ventilation, unplanned ICU admission, sepsis, re-operation) occurred more frequently in OPG, but the difference between the two groups was statistically insignificant (P<0.08). The length of hospitalization was 3.8+/-1.4 days in LPG and 6.2+/-6.6 in OPG (P<0.01). Mortality was zero. Anesthesia for restrictive bariatric surgery (both open and laparoscopic approaches) was associated with few complications. SUMMARY STATEMENT: We reviewed the records of 234 patients who underwent restrictive bariatric procedures (gastric bypass not included) from May 1999 to September 2000, in regard to perioperative complications. Anesthesia was associated with no intraoperative and few postoperative complications.

Adult↗

Difficult airway management patterns among attending anaesthetists practising in Israel.

BACKGROUND AND OBJECTIVE: In recent years, a large number of airway devices have been introduced into clinical practice as adjuncts to the management of the difficult airway. The purpose of this study was to evaluate the practices of Israeli anaesthetists in specific clinical situations and their familiarity with the use of a variety of airway devices and techniques. METHODS: A survey developed in our institution was sent to 300 attending anaesthetists representing all board-certified anaesthetists practising in Israel. RESULTS: Of the 153 respondents, 75% belonged to university hospitals. Ninety-six percent were skilled with laryngeal mask airways and 73% with fibreoptics. Seventy percent preferred regional anaesthesia with anticipated difficult intubation, continuation of anaesthesia with a laryngeal mask with failed intubation and a laryngeal mask for impossible mask ventilation. For the airway scenarios, awake fibreoptic, awake direct laryngoscopy, intubation under inhalation anaesthesia and tracheostomy were shared equally. CONCLUSIONS: There is a high degree of adherence by Israeli anaesthetists to the American Society of Anesthesiologists' difficult airway algorithm. Current airway management practice patterns in Israel are presented.

Airway Obstruction↗

Changes in onset time of rocuronium in patients pretreated with ephedrine and esmolol--the role of cardiac output.

BACKGROUND: We investigated the hypothesis that manipulation of cardiac output (CO) with esmolol (Es) or ephedrine (E) affects the onset time of rocuronium. METHODS: Following anesthesia induction, 33 patients received E (70 micro g kg-1), Es (500 micro g kg-1) or placebo (P) 30 s before rocuronium (0.6 mg kg-1) administration. Cardiac output was measured non-invasively after intubation every 3 min. The interval from the end of rocuronium administration to the disappearance of all twitches was considered to be the onset time. RESULTS: Onset time was shorter after E (52.2 +/- 16.5 s) and longer after Es (114.3 +/- 11.1 s) compared with P (87.4 +/- 7.3 s) (P < 0.0001). Cardiac output increased (P < 0.05) in group E for 15 min after rocuronium. In group Es, CO decreased (P < 0.05) at 3 and 6 min. Cardiac output was higher in group E vs. group Es, 3-6 min post administration of rocuronium (P=0.015). CONCLUSION: Pretreatment with E or Es appears to affect the onset time of rocuronium by altering CO as measured with the NICO (Non-Invasive Cardiac Output) monitor (Novametrix Medical Systems Inc., Willingford, CO).

Adolescent↗

Prediction of difficult laryngoscopy in obese patients by ultrasound quantification of anterior neck soft tissue.

In 50 morbidly obese patients, we quantified the soft tissue of the neck from the skin to the anterior aspect of the trachea at the vocal cords using ultrasound. Thyromental distance, mouth opening, limited neck mobility, modified Mallampati score, abnormal upper teeth, neck circumference and sleep apnoea were assessed as predictors of difficult laryngoscopy. Of the nine (18%) cases of difficult laryngoscopy, seven (78%) had a history of obstructive sleep apnoea, compared with two of the 41 patients (5%) in whom laryngoscopy was easy (p < 0.001). Patients in whom laryngoscopy was difficult had more pretracheal soft tissue (mean (SD) 28 (2.7) mm vs. 17.5 (1.8) mm; p < 0.001) and a greater neck circumference (50 (3.8) vs. 43.5 (2.2) cm; p < 0.001). None of the other predictors correlated with difficult laryngoscopy. We conclude that an abundance of pretracheal soft tissue at the level of the vocal cords is a good predictor of difficult laryngoscopy in obese patients.

Adult↗

Intravenous fluids warming by mattress is simple and efficient during pediatric surgery.

BACKGROUND/AIM: Temperature control is essential during pediatric surgery. The effectiveness of two methods of warming intravenous (i.v.) fluids to preserve normothermia was compared during abdominal surgery. METHODS: Intraoperative core temperature (CT) was measured in 59 children, 8 years of age and younger. Patients were randomly allocated to two study groups according to the method of fluids warming. In Group M (n = 30), fluids were warmed by placing the i.v. tubing under a warming mattress, and in Group T (n = 29), by using an active i.v. fluid tube warming system. Observations of CT, infusion fluid temperature (IFT) at the entry to the patient and other relevant parameters were made at 30-min intervals throughout the surgical procedure. RESULTS: The two groups did not differ significantly by age, gender, body weight or length of surgical procedure. Although baseline IFT was significantly lower in Group M than in Group T (33.8 degrees C vs. 35.1 degrees C), it increased during the procedure by 1.2 degrees C in Group M compared to a 0.2 degrees C increase in Group T. Baseline CT was also lower by 0.5 degrees C in Group M compared to Group T (NS), but CT increased in Group M by 1.0 degrees C compared to 0.2 degrees C in Group T, resulting in similar final CTs. CONCLUSIONS: The increase in CT was more pronounced in patients where fluids were warmed under the warming mattress (Group M) than in those with fluids warmed by a coil warming device (Group T). The elevation in CT seen in Group M is associated with an increase in infusion fluid temperature at the line just before the i.v. cannula. Both methods of fluid warming (by placing the i.v. tubing under warming mattress and by using a fluid warming system) effectively preserved normothermia during abdominal surgery in children.

Beds↗

[The management of HIV patients during surgery and in the delivery ward: anesthetic considerations].

To date a total of more than 50 million individuals worldwide have been infected with HIV and more than 20 million have died from the disease. Two thirds of the known carriers of HIV 36 million worldwide, live in Africa. In Israel, as of December 31, 2000, there are a total of 2,843 reported carriers and 165 persons alive with AIDS. On the basis of future projections of increasing incidence of HIV/AIDS in obstetric patients undergoing anesthesia and surgery, obstetricians and anesthesiologists should be aware of the disease and its impact on anesthetic techniques and possible interactions between anesthetic drugs and HIV therapeutic agents. Surgical staff members should be knowledgeable and updated concerning safety precautions during surgical and anesthetic procedures.

Anesthesia↗

[The significance and cost of preoperative laboratory screening in young healthy patients in a public hospital in Israel].

UNLABELLED: We evaluated the clinical significance and cost of routine preoperative laboratory screening in young healthy patients in a public hospital. Three hundred consecutive young (aged 18-40 years), healthy (ASA I) patients undergoing minor elective surgical procedures were enrolled in this prospective study. A preoperative test was considered to be significant if its result lead to a new diagnose or to cancellation of surgery. The lab tests revealed only one new diagnosis. None of the procedures were cancelled. The total cost of the lab tests was NIS 114,000. Of this amount, NIS 104,000 could have been saved if the tests were ordered as required by the patients medical history and physical examination and not performed routinely. CONCLUSION: This study suggests that routine preoperative laboratory screening is not recommended prior to minor, elective surgery in young, healthy patients.

Adolescent↗

Seroma after laparoscopic repair of hernia with PTFE patch: is it really a complication?

We evaluated the true incidence of seroma formation after laparoscopic repair of incisional hernia with polytetrafluoroethylene (PTFE) patch. In a prospective study, 20 patients who underwent laparoscopic repair of incisional hernia with PTFE were evaluated clinically and with ultrasound examination for seroma formation up to the 90th postoperative day. Seroma was diagnosed clinically in only 35% of cases, while ultrasound examination revealed the presence of seroma in 100% of patients. Ultrasound examination is a reliable tool for diagnosis of early or delayed postoperative seroma formation following laparoscopic repair of incisional hernia with Gore-Tex Dualmesh.

Adult↗

Use of a ventilating tube exchanger in patients undergoing tracheostomy: report of two cases.

Two case reports in which a ventilating tube exchanger was used during tracheostomy in patients with potential for difficult reintubation are presented. We recommend leaving the ventilating tube exchanger in place for 48 hours to allow reintubation from above in the event of inadvertent decannulation in cases where difficult intubation is anticipated. Ventilating tube exchangers have been used to assist in the management of difficult airways in a variety of ways. These methods include the use of ventilating tube exchangers as malleable stylets, endotracheal tube exchangers and conduits through which oxygen can be delivered. We present two cases in which a ventilating tube exchanger was used as an adjunct to airway management in a novel fashion.

Adult↗

Wrist actigraphy in anesthesia.

STUDY OBJECTIVES: To examine the use of wrist actigraphy during and following anesthesia or monitored sedation and its ability to objectively assess sleep-related events. DESIGN: Uncontrolled study. SETTING: 1100-bed tertiary care municipal, university-affiliated medical center. PATIENTS AND INTERVENTIONS: 18 patients who underwent minor to medium lower-body surgical procedures with spinal or epidural anesthesia with sedation by propofol, midazolam, or isoflurane-based general anesthesia. MEASUREMENTS AND MAIN RESULTS: Wrist actigraphy was measured and evaluated. The actigraphic recordings accurately indicated the presence and time of occurrence of all relevant perioperative events including those related to anesthesia. Actigraphic data were more precise than equivalent attending anesthesiologist's subjective observations. The anesthesiologist detected changes in the patient's activity with a delay of minutes after they had been picked up by the actigraph. The integrated areas of recorded phases of midazolam-induced sedation and the occurrence and reversal of paradoxical reactions were distinctly discernible as such, unlike the less specifically defined description of the anesthesiologist. CONCLUSIONS: Real time actigraphic monitoring can provide clear-cut and objective indications of changes in the depth of anesthesia or sedation and its associated events during surgery and recovery.

Adult↗