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Dive into the research topics where Ahmad Assalia is active.

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Featured researches published by Ahmad Assalia.


Surgical Endoscopy and Other Interventional Techniques | 2001

Thoracoscopic sympathectomy for palmar hyperhidrosis: Ablate or resect?

Moshe Hashmonai; Ahmad Assalia

BackgroundUpper thoracoscopic sympathectomy, obtained either by ablation or resection of the appropriate ganglia, is now the preferred treatment for primary palmar hyperhidrosis. Therefore, we undertook a review to compare the relative efficacy of these two techniques.MethodsA Medline search was performed for the years 1974–99 to identify all published studies of thoracoscopic sympathectomy for hyperhidrosis.ResultsIn all, 33 studies were identified and divided into two groups—ablation and resection. When the resection method was used, the immediate success rate was 99.76%, whereas the ablation method achieved dry hands in 95.2% of cases (p=0.00001). Palmar sweating recurred in 0% of patients treated via resection and 0–4.4% treated with ablation. Ptosis was noted in 0.92% of cases after ablation and in 1.72% after resection (p=0.017).ConclusionsResection yields superior results, yet the majority of surgeons ablate, probably because it is easier, requires a shorter operating time, leads to fewer cases of Horner’s syndrome, and because resympathectomy eventually overcomes initial failure.


Surgery Today | 2000

The treatment of primary palmar hyperhidrosis: A review

Moshe Hashmonai; Ahmad Assalia

Primary palmar hyperhidrosis (HH) is a pathological condition of overperspiration caused by excessive secretion of the eccrine sweat glands, the etiology of which is unknown. This disorder affects a small but significant proportion of the young population all over the world. Neither systemic nor topical drugs have been found to satisfactorily alleviate the symptoms. Although the topical injection of botulinum has recently been reported to reduce the amount of local perspiration, long-term results are required before a definitive evaluation of this method can be made. Hypnosis, psychotherapy, and biofeedback have been beneficial in a limited-number of cases. While radiation achieves atrophy of the sweat glands, its detrimental effects prohibit its use. Iontophoresis has attained some satisfactory results but it has not been assessed long term. Percutaneous computed tomography-guided phenol sympathicolysis achieves excellent immediate results, but its long-term failure rate is prohibitive. Furthermore, percutaneous radiofrequency sympathicolysis may be an effective procedure, but its long-term results are not superior to surgical sympathectomy. On the other hand, surgical upper dorsal (T2-T3) sympathectomy achieves excellent long-term results and the thoracoscopic approach has supplanted the open procedures. Despite some sequelae, mainly in the form of neuralgia and compensatory sweating which cannot be predicted and may be distressing, surgical sympathectomy remains the best treatment for palmar hyperhidrosis.


Diseases of The Colon & Rectum | 2012

The impact of preoperative stoma site marking on the incidence of complications, quality of life, and patient's independence.

Benjamin Person; Ruth Ifargan; Jesse Lachter; Simon D. Duek; Yoram Kluger; Ahmad Assalia

BACKGROUND: Preoperative stoma site marking and counseling aim to improve patients’ rehabilitation and adaptation to a new medical condition. Objective studies are needed to provide evidence of the impact of care by stoma therapists. Key quality indicators include patients’ quality of life, independence, and complication rates as affected by the variable modes of stoma site marking and planning. OBJECTIVE: The aim of this study was to evaluate the impact of preoperative stoma site marking on patients’ quality of life, independence, and complication rates. DESIGN: A validated stoma quality-of-life questionnaire was used as the main assessment tool. Complications were noted on regular postoperative visits. SETTING: This is a single-center, clinical study. The study was conducted at the Rambam Health Care Campus in Haifa, Israel. Rambam Health Care Campus is a tertiary university hospital. PATIENTS: All patients who underwent an elective stoma creation between 2006 and 2008 were included. MAIN OUTCOME MEASURES: Evaluated parameters included demographics, stoma type, marking status, complication rates, quality of life, and independence parameters. RESULTS: One hundred five patients (60 men and 45 women) were included, of whom 52 (49.5%) were preoperatively marked and 53 (50.5%) were not marked. Sixty stomas (57%) were permanent, and 45 (43%) stomas were temporary. The quality of life of patients whose stoma sites were preoperatively marked was significantly better than that of the unmarked patients (p < 0.05 in 18 of 20 items), their independence parameters were significantly better, and their complication rates significantly lower. All of these results were significant irrespective of the stoma type. CONCLUSIONS: Preoperative stoma site marking is crucial for improving patients’ postoperative quality of life, promoting their independence, and reducing the rates of postoperative complications. The role of the enterostomal therapist is very important in the ostomates’ pre- and postoperative care.


Diseases of The Colon & Rectum | 1995

Is mechanical bowel preparation necessary before primary colonic anastomosis

Moshe Schein; Ahmad Assalia; Samuel Eldar; Dietmar H. Wittmann; Ronald Lee Nichols

The necessity of preoperative or intraoperative mechanical bowel preparation of the colon, before primary anastomosis, has been recently challenged in clinical elective and emergency situations. PURPOSE: This experimental study in dogs investigated the safety of segmental resection and primary anastomosis in the unprepared or loaded colon. METHODS: Two segments of the descended colon were resected and anastomosed in each animal. Group I (12 anastomoses) received preoperative mechanical bowel preparation; the colon was not prepared in Group II (16 anastomoses); in Group III (12 anastomoses), a preliminary distal colonic obstruction was produced, and during the subsequent resection the colon was loaded. Postoperatively, animals were observed clinically, and anastomoses were assessed at autopsy on the ninth day. RESULTS: All animals recovered uneventfully. At autopsy there was no evidence of anastomotic leakage. CONCLUSIONS: In light of recent clinical reports and this experimental study, the ritual of mechanical bowel preparation should be further scrutinized.


World Journal of Surgery | 1997

Emergency Minilaparotomy Cholecystectomy for Acute Cholecystitis: Prospective Randomized Trial—Implications for the Laparoscopic Era

Ahmad Assalia; Moshe Hashmonai

Abstract. This prospective controlled trial evaluates the efficacy of minicholecystectomy (MC) in cases of acute cholecystitis compared to that of conventional cholecystectomy (CC) and discusses its implications in the laparoscopic era. Sixty consecutive patients with acute cholecystitis were prospectively randomized into two groups: MC group (30 cases) and CC group (30 cases). The two groups were well matched with regard to age, sex, weight/height index, previous upper abdominal surgery, and APACHE II scores. The mean length of incision was 5.5 cm (range 4.5–9.0 cm) in the MC group compared to 13.5 cm (range 12–16 cm) in the CC group. No significant differences were found between MC and CC with regard to operative time (69.1 ± 17.0 and 68.1 ± 15.4 minutes, respectively;p= 0.82), operative difficulty on a 1 to 10 scale (5.2 ± 1.5 versus 4.6 ± 1.6, respectively; p= 0.177), and complication rate (11% and 17%, respectively; p= 0.19). Significantly lower analgesia requirements were noted in the MC group: 27.5 ± 14.6 mg of morphine sulfate compared to 44.5 ± 13.2 mg in the CC group (p < 0.001). In addition, the duration of hospital stay was significantly shorter for MC patients (3.1 ± 1.0 days) than in CC patients (4.7 ± 1.2 days) (p < 0.001). Twenty-two patients (73.3%) in the MC group were reported to return to normal daily activities 2 weeks after the operation, compared to only 12 (40%) in the CC group (p= 0.0028). MC is safe and applicable as an emergency procedure for acute cholecystitis. It is superior to CC in terms of convalescence and cosmesis. The results of MC in the setting of acute cholecystitis compare favorably with the published results of laparoscopic cholecystectomy.


Obesity Facts | 2012

Gastrobronchial fistula as a complication of bariatric surgery: a series of 6 cases.

Nasser Sakran; Ahmad Assalia; Andrei Keidar; David Goitein

Objective: To present a multicenter series of 6 patients who developed gastrobronchial fistula (GBF). GBF is a rare subtype of gastric leaks following bariatric surgery, which is the mainstay of treatment for the obesity pandemic. Methods: We retrospectively identified 6 patients with GBF (out of 2,308 cases performed: 0.2%). One patient had undergone Roux-en-Y gastric bypass, and 5 had a sleeve gastrectomy. Demographics, previous surgeries, clinical presentation, timing of fistula diagnosis, diagnostic and treatment measures employed, and outcome were collected. Results: Four patients were female, the average age and BMI were 42 years and 42.5 kg/m2, respectively. Three patients had previous surgeries (Nissen fundoplication, adjustable gastric banding, and vertical banded gastroplasty). Median time to fistula diagnosis was 40 days (range 15–90 days). Clinical presentation included chronic cough, hemoptysis, dyspnea and fever as well as persistent left pleural effusion or pneumonia. Diagnosis was confirmed by computed tomography in all cases. Two patients were treated nonoperatively, while 4 eventually required surgery for resolution. Left lower lobectomy was necessary in 3 of 4 cases. Concomitant procedures were total gastrectomy in 2 cases and conversion of a sleeve to a gastric bypass in 1 case. Resolution occurred 30 days to 2 years after initial surgery. No mortalities were encountered. Conclusions: GBF is a rare but devastating complication following bariatric surgery. It may develop as a late complication of a chronic upper gastric leak. Surgery is curative although nonoperative management may be warranted in selected cases.


Shock | 2001

Influence of hypertonic saline on bacterial translocation in controlled hemorrhagic shock.

Ahmad Assalia; Haim Bitterman; Mark Hirsh; Michael M. Krausz

Translocation of enteric bacteria has been described in rats following hemorrhagic shock (HS). The aim of the present study was to evaluate the effect of hypertonic saline (HTS) on bacterial translocation (BT) in the setting of controlled HS in rats. The study included 2 arms. Arm I was a qualitative assessment of translocation. Sixty-eight anesthetized animals were studied. The rats were divided into 5 groups. Group I (n = 10) was sham shock controls. In groups II-V, HS was induced by arterial bleeding to mean arterial pressure (MAP) of 35-45 mmHg, which was maintained for 30 min. The animals were then allocated into 4 groups: group II (n = 19) untreated HS; group III (n = 13) normal saline (NS) treated; group IV (n = 13) HTS-treated; and group V (n = 13) HTS and blood treated. Mesenteric lymph nodes, liver, spleen, portal, and systemic blood were sent for culture after 24 h. Translocation occurred if enteric bacteria were cultured from at least one site. Arm II was a quantitative assessment of translocation. Two groups were studied: untreated HS (n = 7) and HTS treated (n = 6). In the qualitative arm, the 24-h mortality in untreated rats (group II) was 31.5% compared to 5.1% in treated animals (groups II-V) (P = 0.01). No BT was detected in control animals (group I). BT after HS was not different between groups II, III, and IV (92.3%, 91.6%, and 100%, respectively). Group V showed fewer translocations than groups II-IV, a difference that was especially significant compared with group IV (P = 0.039). However, BT to distant sites (systemic blood and spleen) was significantly lower in group V than in groups II-IV (P < 0.05). In the quantitative arm, the mortality rate was 16.7% in the untreated group. Although no qualitative significant difference in the translocation rate was found between the two groups (67% in untreated animals vs. 50% in HTS treated), there was significant quantitative difference: in HTS-treated group a significantly lesser bacteria translocated than in untreated animals (0.4 x 10(5) cfu/g vs. 4.2 x 10(5) cfu/g, respectively [P = 0.001]). We concluded that whereas assessed qualitatively, in this model of severe HS in rats, the hemorrhagic insult itself resulted in BT in most animals and treatment with NS, HTS, and blood resulted in reduced early mortality but did not alter significantly the translocation rate. Only the combination of HTS and blood resulted in reduced BT to distant sites. However, quantitative assessment showed that HTS significantly reduced the number of translocating bacteria.


Surgical Endoscopy and Other Interventional Techniques | 2003

Intrapleural analgesia following thoracoscopic sympathectomy for palmar hyperhidrosis: a prospective, randomized trial.

Ahmad Assalia; R. Markovits; Moshe Hashmonai

BACKGROUND Reports on intrapleural analgesia (IPA) are conflicting. The current study assessed the effect of a single-dose thoracoscopic bilateral intrapleural anesthetic administration on the immediate postoperative recovery room and 24-h pain control. METHODS Fifty patients with primary palmar hyperhidrosis were randomly classified into two groups to receive either 20 ml of 0.5% bupivacaine and 5 mg/ml epinephrine or 0.9% NaCl in each thoracic cavity at the end of thoracoscopic T2-T3 sympathectomy. The degree of early postoperative pain was estimated by visual analog scale (VAS). The 24-h parenteral opioid analgesic requirement was recorded. RESULTS The immediate postoperative VAS score (1.46 +/- 0.41 vs 2.0 +/- 0.61, p = 0.03), opioid consumption (0.42 +/- 0.36 vs 0.65 +/- 0.28, p = 0.0133), and 24-h opioid consumption (1.02 +/- 0.80 vs 1.48 +/- 0.84, p = 0.05) were significantly reduced following IPA compared to those of the control group. CONCLUSION IPA is a simple and effective means for postoperative pain control following thoracoscopic upper dorsal sympathectomy.


Case reports in gastrointestinal medicine | 2013

Late Complication of Laparoscopic Sleeve Gastrectomy

Anthony Dakwar; Ahmad Assalia; Iyad Khamaysi; Yoram Kluger; Ahmad Mahajna

Laparoscopic sleeve gastrectomy (LSG) is gaining popularity for the treatment of morbid obesity. It is a simple, low-cost procedure resulting in significant weight loss within a short period of time. LSG is a safe procedure with a low complication rate. The complications encountered nevertheless can result in morbidity and even mortality. The most significant complications are staple-line bleeding, stricture, and staple-line leak. The purpose of this paper is to present a patient who suffered from a staple-line leak presenting 16 months after LSG. Review of the current literature regarding this complication as well as outline of a strategy for the management of post-LSG gastric leaks is suggested.


Surgery Today | 2000

The Effect of Upper Dorsal Thoracoscopic Sympathectomy on the Total Amount of Body Perspiration

Ahmad Assalia; Marina Ehrenreich; Yuval Ben-Amnon; Hany Bahous; Moshe Hashmonai

Abstract Thoracoscopic T2–T3 sympathectomy is the treatment of choice for primary palmar hyperhidrosis (PPH); however, compensatory hyperhidrosis (CH) is a disturbing sequela of this operation, the mechanism of which is poorly understood. This study was conducted to evaluate the effect of heat stress on total body perspiration after thoracoscopic T2–T3 sympathectomy, and determine its correlation with CH. A total of 17 patients with PPH who underwent bilateral T2–T3 sympathectomy were subjected to heat stress induced by a 10-min sauna bath (ambient temperature 70°C), 1 day before and 1 month after surgery. The naked body weight was recorded before and immediately following the sauna bath, and the patients were followed up to assess whether CH had developed and the degree of its severity. Postoperatively, the amount of perspiration increased in 13 patients and decreased in 1. The amount of perspiration induced by the sauna bath ranged from 60 to 480 g, with a mean value of 185.29 ± 125.80 g, before the operation, and from 60 to 540 g, with a mean value of 265.88 ± 154.05 g, after the operation (P = 0.0113). There was no correlation between the degree of alteration in total body perspiration and the development of CH. Performing thoracoscopic T2–T3 sympathectomy for PPH affects the total body sweating response to heat; however, the development of CH does not correlate with this alteration.

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Moshe Hashmonai

Technion – Israel Institute of Technology

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Ahmad Mahajna

Technion – Israel Institute of Technology

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Moshe Schein

Medical College of Wisconsin

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Anat Ilivitzki

Technion – Israel Institute of Technology

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Iyad Khamaysi

Rambam Health Care Campus

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Nasser Sakran

Technion – Israel Institute of Technology

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Alain Suissa

Technion – Israel Institute of Technology

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Arthur Bohdjalian

Medical University of Vienna

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David Nocca

University of Montpellier

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