Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 30
Filter
1.
J Laparoendosc Adv Surg Tech A ; 34(4): 318-322, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38301124

ABSTRACT

Background: It has been shown that surgical residents who took few or no in-house calls during medical school felt less prepared for the residency. In this study, our objective was to assess the impact of in-house calls carried out by medical students on their perceptions of medical training, including the influence on specialty choice. Methods: The students were asked to complete an anonymized questionnaire at the first and last day of their general surgery clerkship. Students were asked regarding importance for medical training and education, preparation for the internship, learning opportunities, skills acquisition; negative effects, including fatigue, negative effect over medical training, personal life, and physical and mental health derangements; and the student's perception of the residents' in-house calls and parameters affecting specialty selection: difficulty of the residency, prestige, and future career opportunities. Results: A total of 42 medical students responded to 84 questionnaires. There was a significant difference in the importance of calls among male students before the beginning of the clerkships compared with the end of the clerkship (4.53 versus 4.21, P = .034). At the end of general surgery clerkship, students indicated that the calls less impaired studying during the clerkship (2.5 versus 2.21, P < .05) compared with the beginning of the clerkship. Female students ranked the calls as less demanding at the end of the clerkship (2.53 versus 2.12, P < .05). The impact of the residency difficulty on the selection of their future specialty was rated higher by the students at the end of the clerkship compared with their expectations at the beginning (3.13 versus 2.85, P = .033). Conclusions: In conclusion, our study demonstrates that in-house calls performed by medical students during their general surgery clerkships have a significant influence on their perceptions of medical training and choice of specialty. The study also highlights the importance of gender differences in the students' perception of the importance and impact of calls on their well-being.


Subject(s)
Students, Medical , Humans , Male , Female , Students, Medical/psychology , House Calls , Learning , Educational Status , Forecasting , Surveys and Questionnaires
2.
J Laparoendosc Adv Surg Tech A ; 34(3): 214-218, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38301148

ABSTRACT

Introduction: Empyema secondary to pneumonia is a common condition. A significant number of patients will require surgical intervention for drainage and decortication. The aim of this study was to identify predictive factors for surgical intervention. Materials and Methods: The medical records of patients who were diagnosed with empyema secondary to pneumonia between the years 2010 and 2019 in a university hospital were included in the study. Patients who underwent surgical intervention were defined as group A and nonoperative treatment as group B. Clinical and laboratory data were collected from medical records and patients' chest computerized tomography (CT) scans were reviewed. Results: A total of 194 patients were included in the study-86 patients were included in group A and 108 patients in group B. Several parameters on admission were found to have a statistically significant correlation with surgical intervention: younger age, higher systolic blood pressure, and elevated white blood count. Multivariant analysis showed that younger age was found to have a statistically significant correlation with operative intervention (adjusted odds ratio = 0.971, P = .023). A statistically significant correlation between surgical intervention and survival (adjusted hazard ratio [HR] = 1.762, P = .046) and an inverse correlation between age and survival (adjusted HR = 0.050, P < .001) were found. Surgical intervention was associated with increased survival irrespective of age. A total of 42 CT scans were available for review. The mean density of the empyema fluid in group A was higher by 4.3 hounsfield units compared to group B (P < .067). Conclusions: Younger age was found to be associated with surgical intervention among patients suffering from empyema secondary to pneumonia. Surgical intervention was associated with increased long-term survival, irrespective of patients' age. Several radiologic characteristics were associated with the need for surgery in this study: empyema fluid density, pleural thickening, and fluid loculations. Additional prospective studies are required to ascertain these results.


Subject(s)
Empyema, Pleural , Pneumonia , Humans , Empyema, Pleural/etiology , Empyema, Pleural/surgery , Retrospective Studies , Pneumonia/complications , Drainage/methods , Tomography, X-Ray Computed
3.
J Laparoendosc Adv Surg Tech A ; 34(1): 25-32, 2024 Jan.
Article in English | MEDLINE | ID: mdl-37824761

ABSTRACT

Introduction: The use of mesh for paraesophageal hernia repair is controversial due to concerns about long-term complications. This study aimed to investigate whether preoperative imaging characteristics of diaphragmatic hernia could predict the need for mesh repair. Methods: The records of all patients who underwent laparoscopic diaphragmatic hernia repair between September 2015 and September 2022 were reviewed. Patients' preoperative computerized tomography (CT) imaging was reviewed and was correlated with mesh repair. Results: A total of 53 patients were included in the study. Volumetric measurements were obtained from preoperative CT scans to assess hiatal defect area (HDA) and hernia sac volume (HSV). Mesh repair was required in 43.4% of cases, all among types II-IV. The mesh repair group had a higher mean hiatal neck height (50.8 ± 16.35 versus 43.22 ± 17.08 mm, P < .032) and higher HSV (708.53 ± 577.6 versus 346.866 ± 321.65 cm3, P < .003). There was also a borderline difference in HDA mean values (23.78 ± 17.22 versus 16.8 ± 10.41 cm2, P < .059). Conclusions: Preoperative HSV on CT scans can be a valuable predictor for the need for mesh repair during hiatal hernia surgery, aiding surgical planning and decision-making. Further research is needed to validate these findings and optimize hernia repair outcomes.


Subject(s)
Hernia, Hiatal , Hernias, Diaphragmatic, Congenital , Laparoscopy , Humans , Herniorrhaphy/methods , Surgical Mesh , Recurrence , Retrospective Studies , Hernia, Hiatal/diagnostic imaging , Hernia, Hiatal/surgery , Hernia, Hiatal/complications , Hernias, Diaphragmatic, Congenital/surgery , Laparoscopy/methods , Treatment Outcome
4.
Nutr Metab Cardiovasc Dis ; 33(6): 1197-1205, 2023 06.
Article in English | MEDLINE | ID: mdl-36948939

ABSTRACT

BACKGROUND AND AIM: Post-bariatric-surgery hypoglycemia (PBH) is a serious complication of bariatric surgery (BS). In our previous study about three quarters of the patients developed PBH. However long-term follow-up data is lacking to determine whether this condition improves with time. The aim of the current study was to re-assess post-BS patients who participated in our previous study and determine whether there are changes in the frequency and/or severity of hypoglycemic events. METHODS AND RESULTS: Twenty-four post-BS, post Roux-en-Y gastric-bypass (RYGB = 10), post omega-loop gastric-bypass (OLGB = 9) and post sleeve-gastrectomy (SG = 5) individuals were reevaluated in a follow-up study 34.4 ± 4 months after their previous assessment and 67 ± 17 months since surgery. The evaluation included: a dietitian assessment, a questionnaire, meal-tolerance test (MTT) and a one-week masked continuous glucose monitoring (CGM). Hypoglycemia and severe hypoglycemia were defined by glucose levels ≤54 mg/dl and ≤40 mg/dl, respectively. Thirteen patients reported questionnaire meal-related complaints, mainly non-specific. During MTT, hypoglycemia occurred in 75% of the patients, and severe hypoglycemia in a third, but none was associated with specific complaints. During CGM, 66% of patients developed hypoglycemia and 37% had severe hypoglycemia. We did not observe significant improvements in hypoglycemic events compared to the previous assessment. Despite the high frequency of hypoglycemia, it did not necessitate hospitalizations or lead to death. CONCLUSIONS: PBH did not resolve within long-term follow-up. Intriguingly, most patient were unaware of these events which can lead to underestimation by the medical staff. Further studies are needed to determine possible long term sequela of repeated hypoglycemia.


Subject(s)
Bariatric Surgery , Gastric Bypass , Hypoglycemia , Obesity, Morbid , Humans , Follow-Up Studies , Blood Glucose , Obesity, Morbid/diagnosis , Obesity, Morbid/surgery , Obesity, Morbid/complications , Blood Glucose Self-Monitoring/adverse effects , Hypoglycemia/diagnosis , Hypoglycemia/etiology , Gastric Bypass/adverse effects , Bariatric Surgery/adverse effects , Hypoglycemic Agents , Gastrectomy/adverse effects
5.
Biomedicines ; 11(2)2023 Jan 26.
Article in English | MEDLINE | ID: mdl-36830899

ABSTRACT

Given that, even after multimodal therapy, early-stage lung cancer (LC) often recurs, novel prognostic markers to help guide therapy are highly desired. The mRNA levels of cell division cycle 25C (CDC25C), a phosphatase that regulates G2/M cell cycle transition in malignant cells, correlate with poor clinical outcomes in lung adenocarcinoma (LUAD). However, whether CDC25C protein detected by immunohistochemistry can serve as a prognostic marker in LUAD is yet unknown. We stained an LC tissue array and a cohort of 61 LUAD tissue sections for CDC25C and searched for correlations between CDC25C staining score and the pathological characteristics of the tumors and the patients' clinical outcomes. Clinical data were retrieved from our prospectively maintained departmental database. We found that high expression of CDC25C was predominant among poorly differentiated LUAD (p < 0.001) and in LUAD > 1cm (p < 0.05). Further, high expression of CDC25C was associated with reduced disease-free survival (p = 0.03, median follow-up of 39 months) and with a trend for reduced overall survival (p = 0.08). Therefore, high expression of CDC25C protein in LUAD is associated with aggressive histological features and with poor outcomes. Larger studies are required to further validate CDC25C as a prognostic marker in LUAD.

6.
Turk J Surg ; 38(2): 169-174, 2022 Jun.
Article in English | MEDLINE | ID: mdl-36483174

ABSTRACT

Objectives: Discriminating simple from complicated diverticulitis solely on clinical bases is challenging. The aim of this study was to identify clinical predictive factor for the need for invasive treatment for patients presenting with acute diverticulitis in the emergency room. Material and Methods: The records of all patients, who were discharged from a university hospital between January 2010 and March 2018 with "diverticulitis" diagnosis, were reviewed. Data collected included clinical features, whether this was a first or recurrent episode, WBC, and Hinchey score. Patients were divided into conservative and invasive treatment groups. Groups were compared by age, sex, BMI, fever, WBC and CT findings. Hinchey score groups were also compared by age, sex, BMI, fever, WBC. Results: A total of 809 patients were included. Mean age was 60.6 years, with 10% below 40 years. Most patients were treated conservatively (95.9%) while only 4.1% were treated invasively. WBC at presentation was significantly higher in those who required invasive treatment in comparison with the conservative group (13.72 vs. 11.46K/uL, p= 0.024). A statistically significant higher WBC was found among patients with a higher Hinchey score (13.16 vs 11.69, p <0.005). No difference between the groups was found in terms of age, sex, fever or BMI. Conclusion: This study showed that patients who present with acute diverticulitis and an elevated WBC are prone to a more severe disease and a higher Hinchey score. Prudence should be taken with these patients, and CT scan is warranted as there is a greater chance that invasive treatment will be required.

7.
Indian J Surg ; 84(Suppl 1): 269-274, 2022 Apr.
Article in English | MEDLINE | ID: mdl-35437339

ABSTRACT

The oral board examination in general surgery in Israel was recently revised aiming for improved objectivity and standardization. Herein, we describe the current exam model. Between 05/2018 and 11/2020, two exams per year were conducted with the current exam model. The examination consists of 12 stations, each focusing on a different field. Passing score is 80%. At the end of the examination, examiners and candidates complete a questionnaire regarding the examination's process and quality (scale 1-5). A total of 142 residents attended six oral board examinations. Mean pass rate was 76.6 ± 9.5%. Questions with overall highest pass rates were acute-care surgery (86.6 ± 4.8%), foregut surgery (84.6 ± 7.6%), and colorectal surgery (84 ± 8.1%). Questions with the highest fail rates were surgical oncology (31.7 ± 13.3%) and abdominal-wall surgery (28.8 ± 16.9%). Examiners' feedback scored highest the following: standardization of the exam (4.45 ± 0.63) and whether the presented cases reflect the daily work of an attending surgeon (4.35 ± 0.87). Candidates' feedback scored highest the following: did the examiners treat you in an appropriate manner (4.08 ± 1.17). In conclusion, oral exams are challenging and bear limitations, but properly constructed exams allow good evaluation of the trainees' thinking process and decision-making skills, without compromising exam's integrity and standardization.

8.
Nat Cancer ; 3(2): 219-231, 2022 02.
Article in English | MEDLINE | ID: mdl-35145327

ABSTRACT

Translating preclinical studies to effective treatment protocols and identifying specific therapeutic responses in individuals with cancer is challenging. This may arise due to the complex genetic makeup of tumor cells and the impact of their multifaceted tumor microenvironment on drug response. To find new clinically relevant drug combinations for colorectal cancer (CRC), we prioritized the top five synergistic combinations from a large in vitro screen for ex vivo testing on 29 freshly resected human CRC tumors and found that only the combination of mitogen-activated protein kinase kinase (MEK) and proto-oncogene tyrosine-protein kinase Src (Src) inhibition was effective when tested ex vivo. Pretreatment phosphorylated Src (pSrc) was identified as a predictive biomarker for MEK and Src inhibition only in the absence of KRASG12 mutations. Overall, we demonstrate the potential of using ex vivo platforms to identify drug combinations and discover MEK and Src dual inhibition as an effective drug combination in a predefined subset of individuals with CRC.


Subject(s)
Colorectal Neoplasms , Mitogen-Activated Protein Kinase Kinases , Cell Line, Tumor , Cell Proliferation , Colorectal Neoplasms/drug therapy , Humans , Mutation , Tumor Microenvironment
9.
Interact Cardiovasc Thorac Surg ; 34(6): 1155-1156, 2022 06 01.
Article in English | MEDLINE | ID: mdl-34662375

ABSTRACT

Oesophageal resection is a challenging procedure, and it is more so in patients who have undergone bariatric procedures, especially after laparoscopic sleeve gastrectomy. We present the case of a patient with a history of an laparoscopic sleeve gastrectomy who underwent a hybrid Ivor-Lewis oesophagectomy in which the sleeve was successfully used to reconstruct the upper gastrointestinal tract.


Subject(s)
Esophagectomy , Laparoscopy , Endoscopy , Esophagectomy/methods , Feasibility Studies , Gastrectomy/methods , Humans , Laparoscopy/methods
10.
Interact Cardiovasc Thorac Surg ; 33(4): 646-648, 2021 10 04.
Article in English | MEDLINE | ID: mdl-34000026

ABSTRACT

Oesophageal schwannomas are extremely rare tumours arising from Schwann cells of the neural sheath, with less than 115 cases reported in the English literature. These tumours are usually sporadic and account for about 2% of all stromal oesophageal tumours. Diagnosis is usually confirmed by the presence of positive immunohistochemical marker S-100 and absence of CD117, CD34, smooth muscle actine and Desmin. Treatment can vary from enucleation to oesophagectomy. Herein, we report a case of a 61-year-old woman who presented with progressive dysphagia. Computerized tomography scan revealed a 5 × 3 cm mass extending proximal to the azygos arch. Oesophagogastroduodenoscopy showed a submucosal mass at 20-24 cm from the incisors. Endoscopic ultrasound showed a 6 × 3 cm well-circumscribed mass originating from the fourth layer, suspicious for a gastrointestinal stromal tumour. The patient underwent thoracoscopic enucleation of the tumour in a semi-prone position. Final pathology was consistent with a completely resected benign oesophageal schwannoma, positive for S-100.


Subject(s)
Esophageal Neoplasms , Endosonography , Esophageal Neoplasms/diagnostic imaging , Esophageal Neoplasms/surgery , Esophagectomy , Female , Humans , Middle Aged , Prone Position
11.
Innovations (Phila) ; 16(2): 152-156, 2021.
Article in English | MEDLINE | ID: mdl-33448887

ABSTRACT

OBJECTIVE: Feasibility of diagnosis of pneumothorax using handheld ultrasound by non-radiologists shows inconsistent results. The aim of this study is to evaluate the feasibility and accuracy of portable ultrasound for immediate diagnosis of pneumothorax by general surgery residents who underwent short training. METHODS: Patients who presented to the emergency department of a university hospital with suspected pneumothorax between 10/2018 and 12/2019 were included in the study. Patients underwent ultrasound in 2 points of each hemithorax. Sensitivity and specificity for pneumothorax diagnosis by ultrasound and physical examination were calculated and compared with chest computed tomography (CT). Patients in whom a chest tube was placed prior to ultrasound examination and those who did not undergo a CT scan were excluded from the study. RESULTS: A total of 85 patients met the inclusion criteria. Mean age was 40.7 ± 20.2 years. Pneumothorax was found among 46 patients (54%) per chest CT, and of these, 21 (46%) underwent chest tube placement following imaging. Ultrasound showed the highest sensitivity and specificity (95.6% [95% confidence interval {CI} 85.16% to 99.47%] and 97.44% [95% CI 86.40% to 99.67%], respectively). Chest x-ray had the lowest sensitivity (47.8% [95% CI 32.89% to 63.05%]) for pneumothorax detection. Physical examination showed a moderate sensitivity and specificity (82.6% [95% CI 68.58% to 92.18%] and 77.89% [95% CI 60.67% to 88.87%], respectively) for the diagnosis of pneumothorax. CONCLUSIONS: We found high accuracy rates of 2-point ultrasound in immediate pneumothorax diagnosis when performed by surgical residents who underwent a short ultrasound training. This is a fast and repeatable test, and has the potential for successful implementation in prehospital and military scenarios as well, minimizing unnecessary chest tube placements.


Subject(s)
Internship and Residency , Pneumothorax , Adult , Humans , Middle Aged , Pneumothorax/diagnostic imaging , Sensitivity and Specificity , Tomography, X-Ray Computed , Ultrasonography , Young Adult
12.
Thorac Cardiovasc Surg ; 69(3): 204-210, 2021 04.
Article in English | MEDLINE | ID: mdl-32593178

ABSTRACT

OBJECTIVES: Aspirations are common after esophagectomy. Data are lacking regarding its long-term radiological manifestations. The purpose of this study is to determine the incidence and radiological patterns of aspirations among long-term survivors and evaluate their clinical significance. METHODS: The records of all patients who underwent esophagectomy between October 2003 and December 2011 and survived more than 3 years were reviewed. Preoperative, first routine postoperative, and latest chest computed tomography (CT)scans were reviewed. Imaging studies were reviewed for radiological signs suspicious of aspirations, conduit location, anastomotic site, and maximal intrathoracic diameter. Data regarding patients' complaints during clinic visits were also collected. RESULTS: A total of 578 patients underwent esophagectomy during the study period. One-hundred twenty patients met the inclusion criteria. Median follow-up was 83.5 months. Cervical and intrathoracic anastomoses were performed in 103 and 17 patients, respectively. A higher rate of CT findings was found in postoperative imaging (n = 51 [42.5%] vs. n = 13 [10.8%] respectively, p < 0.05). Most of these were found in the lower lobes (61%). A higher rate of lesions was found among patients in whom the conduit was bulging to the right hemithorax compared with totally mediastinal or completely in the right hemithorax (54.5 vs. 35.2% and 34.6%, respectively, p < 0.05). No correlation was found with conduit diameter or anastomotic site. These lesions were more prevalent among patients who complained of reflux or cough during meals (NS). CONCLUSIONS: A significantly higher rate of new CT findings was found in postoperative imaging of this post-esophagectomy cohort, suggesting a high incidence of aspirations. The locations of the conduit, rather than anastomosis site, seem to play a role in the development of these findings. Further research is needed to evaluate the clinical significance of these findings.


Subject(s)
Anastomotic Leak/diagnostic imaging , Esophagectomy/adverse effects , Esophagus/surgery , Respiratory Aspiration of Gastric Contents/diagnostic imaging , Tomography, X-Ray Computed , Aged , Anastomotic Leak/etiology , Anastomotic Leak/physiopathology , Deglutition , Esophagectomy/instrumentation , Esophagus/diagnostic imaging , Esophagus/physiopathology , Female , Humans , Male , Middle Aged , Positron Emission Tomography Computed Tomography , Predictive Value of Tests , Respiratory Aspiration of Gastric Contents/etiology , Respiratory Aspiration of Gastric Contents/physiopathology , Risk Assessment , Risk Factors , Time Factors , Treatment Outcome
13.
Ann Coloproctol ; 37(2): 109-114, 2021 Apr.
Article in English | MEDLINE | ID: mdl-33171038

ABSTRACT

PURPOSE: This study aimed to evaluate the outcomes of the Bascom cleft lift (flap) and the pilonidal pits excision (Gips procedure). METHODS: The records of all the patients who underwent pilonidal sinus excision between November 2013 and August 2017 were reviewed. Inclusion criteria included either pilonidal pits excision or the Bascom cleft lift procedure. All procedures were performed by a single surgeon. Perioperative complications and recurrence rates were reviewed. RESULTS: Fifty-three patients met the inclusion criteria. Male/female ratio was 36/17, with a mean age of 23.4 ± 7 years. In this study, 21 patients underwent the Bascom cleft lift (skin flap) procedure and 32 underwent the Gips-style operation. The mean follow-up was 3.5 months. Twenty-eight patients (52.8%) underwent prior drainage of pilonidal abscess. Eleven patients had a previous wide local excision with recurrent disease. A higher rate of recurrence was observed among patients who underwent pits picking following failure of a previous wide local excision (80% vs. 0%, P = 0.02). Minor wound dehiscence developed in 8 patients; all of which were in the Bascom flap group (40% vs. 0%, P < 0.005). All of these wounds healed completely between 3 and 6 weeks. CONCLUSION: The Gips procedure is the recommended treatment for simple pilonidal disease. For recurrent pilonidal disease, the Bascom cleft lift (flap) procedure is an excellent option since it demonstrates a short wound healing time and a good success rate. This calls into question the continued use of the wide excision technique used by most surgeons in this country and abroad.

14.
Obes Surg ; 31(3): 1013-1020, 2021 03.
Article in English | MEDLINE | ID: mdl-33130945

ABSTRACT

PURPOSE: The necessity of routine preoperative esophagogastroduodenoscopy (EGD) and upper gastrointestinal series (UGIS) in the evaluation of hiatal hernia (HH) among bariatric surgery candidates is controversial since most are detected during surgery, regardless of the preoperative work-up. The aim is to determine the accuracy of preoperative EGD and UGIS for HH diagnosis among bariatric surgery candidates. MATERIAL AND METHODS: The records of bariatric surgery patients between 2011 and 2015 were reviewed. Patients underwent routine UGIS and/or EGD before the surgery. The positive and negative predictive values (PPV, NPV) for each study were calculated based on operative findings. RESULTS: A total of 463 patients were included in the study. Mean age was 44.34 ± 12.99 years. Mean preoperative body mass index (BMI) was 42.7 ± 5.15 kg/m2. A total of 450 patients (97.2%) had a UGIS, 263 patients underwent EGD (56.8%), and 258 (55.7%) patients had both tests. HH was diagnosed in 26 (5.8%), 60 (13%), and 72 (27.8%) patients, respectively. HH was found intra-operatively in 53 patients (11.4%). It was associated with heartburn (P = 0.005) and previous bariatric surgery (P = 0.008). EGD had a greater sensitivity than UGIS (47.4% vs. 30.2%) and a lower specificity (81.4% vs. 97.5%). PPV and NPV for UGIS and EGD were 61.5% and 91.3% vs. 30% and 90.2%, respectively. The sensitivity of both tests when combined together reached 60.5%. CONCLUSIONS: Both EGD and UGIS, whether solely performed or combined, have low sensitivity for diagnosis of HH and can probably be omitted from the preoperative evaluation, except for high-risk patients.


Subject(s)
Bariatric Surgery , Hernia, Hiatal , Obesity, Morbid , Adult , Endoscopy, Digestive System , Hernia, Hiatal/diagnosis , Hernia, Hiatal/surgery , Humans , Middle Aged , Obesity, Morbid/surgery , Preoperative Care , Retrospective Studies
15.
Innovations (Phila) ; 15(5): 481-483, 2020.
Article in English | MEDLINE | ID: mdl-32628079

ABSTRACT

Chyle fistula is a challenging complication following neck dissection carrying a high morbidity and mortality rate. Herein we present a challenging case of successful management of high-output left-sided cervical chyle fistula with negative-pressure vacuum (VAC) therapy in a case where all conservative treatments failed. A 40-year-old man with lymphoma and supraglottic carcinoma underwent endoscopic resection and bilateral neck dissections. He developed high-output chyle fistula, nonresponsive to conservative treatments. Double-layered Vicryl mesh was placed between the sponge and the jugular vein to prevent vascular injury. Immediately after initiation of the VAC therapy, the output decreased, and completely stopped after 3 days. The VAC therapy was continued for additional 5 days to ensure complete seal of the fistula by granulation tissue, by which time the wound was primarily closed. VAC therapy seems to be a safe and effective treatment for high-output cervical chyle fistula following neck dissection, avoiding complex surgical interventions. Thoracic surgeons should be aware of this low-morbidity and potentially effective treatment modality for this challenging complication.


Subject(s)
Neck Dissection/adverse effects , Negative-Pressure Wound Therapy/methods , Postoperative Complications , Thoracic Duct/surgery , Adult , Chyle , Humans , Laryngeal Neoplasms/diagnosis , Laryngeal Neoplasms/secondary , Laryngeal Neoplasms/surgery , Lymphatic Metastasis , Male , Treatment Outcome
16.
Nat Commun ; 11(1): 3296, 2020 07 03.
Article in English | MEDLINE | ID: mdl-32620799

ABSTRACT

Identifying robust, patient-specific, and predictive biomarkers presents a major obstacle in precision oncology. To optimize patient-specific therapeutic strategies, here we couple pathway knowledge with large-scale drug sensitivity, RNAi, and CRISPR-Cas9 screening data from 460 cell lines. Pathway activity levels are found to be strong predictive biomarkers for the essentiality of 15 proteins, including the essentiality of MAD2L1 in breast cancer patients with high BRCA-pathway activity. We also find strong predictive biomarkers for the sensitivity to 31 compounds, including BCL2 and microtubule inhibitors (MTIs). Lastly, we show that Bcl-xL inhibition can modulate the activity of a predictive biomarker pathway and re-sensitize lung cancer cells and tumors to MTI therapy. Overall, our results support the use of pathways in helping to achieve the goal of precision medicine by uncovering dozens of predictive biomarkers.


Subject(s)
Biomarkers, Tumor/genetics , Gene Expression Profiling , Gene Expression Regulation, Neoplastic , Neoplasms/genetics , Signal Transduction/genetics , Animals , Antineoplastic Agents/pharmacology , BRCA1 Protein/genetics , BRCA1 Protein/metabolism , BRCA2 Protein/genetics , BRCA2 Protein/metabolism , Biomarkers, Tumor/metabolism , Breast Neoplasms/drug therapy , Breast Neoplasms/genetics , Breast Neoplasms/metabolism , Cell Line, Tumor , Female , Gene Regulatory Networks , Humans , Lung Neoplasms/drug therapy , Lung Neoplasms/genetics , Lung Neoplasms/metabolism , Mice , Neoplasms/drug therapy , Neoplasms/metabolism , Precision Medicine/methods , RNA Interference , Signal Transduction/drug effects , Xenograft Model Antitumor Assays/methods
18.
Injury ; 51(8): 1812-1816, 2020 Aug.
Article in English | MEDLINE | ID: mdl-32482430

ABSTRACT

OBJECTIVES: Rib fractures are common and carry significant morbidity. Chest CT provides an accurate mapping of the fractures. The aim of this study is to propose an anatomical classification of rib fractures, and assess their relation to complication development. METHOD: The records of all blunt trauma patients between January 1st 2014 and December 31st 2017 at a university hospital were retrospectively reviewed. Wounded who were hospitalized with rib fractures (two and more) as the primary injury were included in the study. Based on the chest CT scans, the cohort was divided into five groups: upper ribs (1-4) fractures, anterior, lateral and posterior middle ribs (4-7) fractures, and lower ribs (9-12) fractures. Data regarding demographics, complications (pneumothorax, hemothorax, chest drains, pulmonary contusion atelectasis, pneumonia, respiratory failure and death), intensive care admission and hospital stay were collected. RESULTS: A total of 102 wounded were included in the study, with a mean age of 46.3 years. The mean number of fractured ribs per person was 3.82±1.68, and 46 wounded had displaced fractures. Rib fracture distribution was: upper ribs - 13.7%, anterior middle ribs - 28.5%, lateral middle ribs fractures - 27.5%, posterior middle ribs - 14.7%, lower ribs fractures - 15.7%. Wounded sustaining lateral middle ribs fractures had the highest complications rates in relation to any other fracture location group, with 25% respiratory failure rate. CONCLUSIONS: Lateral middle ribs fractures are associated with a higher complication rate and may require closer oabservation.


Subject(s)
Rib Fractures , Wounds, Nonpenetrating , Hemothorax , Humans , Middle Aged , Retrospective Studies , Rib Fractures/diagnostic imaging , Ribs , Wounds, Nonpenetrating/diagnostic imaging
19.
Endocr Pract ; 2019 Aug 14.
Article in English | MEDLINE | ID: mdl-31412234

ABSTRACT

Background: The prevalence of post-bariatric surgery hypoglycemia (PBH) remains unclear due to diagnostic criteria variability, types of bariatric procedures and possible unawareness. Objective: To determine the frequency, pattern and severity of symptomatic and asymptomatic hypoglycemia in subjects post three different bariatric procedures performed >1 year before evaluation and a group of obese subjects before surgery. Design and Setting: Observational cohort study. Fifty-one consecutive patients participated: post Roux-en-Y gastric-bypass (RYGB) (n=16), post omega-loop gastric-bypass (OLGB) (n=12), post sleeve-gastrectomy (SG) (n=15), obese subjects before surgery (controls) (n=8). Hypoglycemic events (glucose ≤54 mg/dL) and severe hypoglycemia (glucose ≤40 mg/dL) were evaluated by symptoms' questionnaire, mixed-meal tolerance test (MMTT) and continuous glucose monitoring (CGM). Results: According to questionnaires, meal-related complaints were reported in 11 (26%) of the surgical group and in one control subject. During MMTT, 88%, 82% and 67% experienced hypoglycemia in RYGB, OMGB and SG groups, respectively, vs. none of the controls (P<0.001). Severe hypoglycemia occurred in 38%, 45% and 7% in RYGB, OMGB and SG groups, respectively (P=0.025), but only 10 of the total operated patients (24%) reported any symptoms. During CGM, fasting hypoglycemic events occurred more in RYGB and OLGB vs. SG group: 55%, 63% and 17% respectively (P=0.036). Conclusions: PBH is very common after RYGB, OMGB and SG and can be severe especially following bypass procedures. Our results show that hypoglycemia occurs not only postprandially but also in the fasting state, especially following bypass procedures. In most cases, there were no specific complaints, possibly leading to its underestimation.

20.
Ann Thorac Surg ; 108(6): e349-e351, 2019 12.
Article in English | MEDLINE | ID: mdl-31077658

ABSTRACT

Paragangliomas are rare neuroendocrine tumors derived from extraadrenal autonomic paraganglia, which may secrete catecholamines. They are potentially metastatic and require very long-term follow-up. Esophageal paragangliomas are extremely rare and present a diagnostic challenge. Lack of clinical suspicion and unrecognized catecholamine hypersecretion may lead to hemodynamic instabilities during surgery. Two patients with esophageal paragangliomas were previously reported. We report a 39-year-old man with a giant high-risk esophageal paraganglioma who underwent a hybrid minimally invasive 3-hole esophagectomy.


Subject(s)
Endoscopy, Digestive System/methods , Esophageal Neoplasms/pathology , Esophageal Neoplasms/surgery , Esophagectomy/methods , Paraganglioma/pathology , Paraganglioma/surgery , Adult , Deglutition Disorders/diagnosis , Deglutition Disorders/etiology , Esophageal Neoplasms/diagnostic imaging , Esophagoscopy/methods , Follow-Up Studies , Humans , Israel , Male , Minimally Invasive Surgical Procedures/methods , Neoplasm Invasiveness/pathology , Neoplasm Staging , Paraganglioma/diagnostic imaging , Rare Diseases , Treatment Outcome
SELECTION OF CITATIONS
SEARCH DETAIL
...