Genetics of perioperative pain management

Purpose of review The current review will discuss the current literature on genetics of pain and analgesia, with special emphasis on perioperative setting. We will also discuss pharmacogenetics-based management guidelines, current clinical status and future perspectives. Recent findings Recent literature suggests that the interindividual variability in pain and postoperative analgesic response is at least in part because of one's genetic make-up. Some of the well characterized polymorphisms that are associated with surgical pain and opioid-related postoperative adverse outcomes are described in catechol-O-methyl transferase, CYP2D6 and μ-opioid receptor (OPRM1), ATP-binding cassette subfamily B member 1, ABCC3, organic cation transporter 1 genes. Clinical Pharmacogenetics Implementation Consortium has put forth recommendations on CYP2D6 genotype-based opioid selection and dosing. The list of drug–gene pairs studied continue to expand. Summary Pharmacogenetic approach marks the dawn of personalized pain medicine both in perioperative and chronic pain settings. Correspondence to Senthilkumar Sadhasivam, MD, MPH, Gopal Krishna Professor and Chief of Anesthesia, Department of Anesthesia, Riley Hospital for Children at Indiana University Health, RH 2835, 705 Riley Hospital Drive, Indianapolis, IN 46202, USA. Tel: +1 317 948 3845; fax: +1 317 944 0282; e-mail: ssadhasivam@iuhealth.org Copyright © 2018 YEAR Wolters Kluwer Health, Inc. All rights reserved.

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False negative computed tomography scan due to pelvic binder in a patient with pelvic disruption: a case report and review of the literature

Pelvic binders are routinely used in the prehospital setting for stabilization of pelvic injuries in patients with trauma. Emergency department trauma management relies on primary and secondary survey assessme...

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Clinical Thyroidology®for the Public – Highlighted Article

From Clinical Thyroidology^® for the Public: Treatment-free survival, which is living without the need for treatment for recurrent cancer, is an important outcome for thyroid cancer patients. The goal of this study was to understand factors associated with treatment-free survival in the general population, because this will enable the care teams to tailor long term follow up to a particular situation, and, many times, help decrease patient worry. Read More…

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Is skip metastases associated with tumor thickness and tumor size in tongue carcinoma patients?

Abstract

Objective

To assess the correlation of skip metastases associated with increase in tumor thickness and size of the tumor.

Material and methods

A retrospective analysis was carried out from August 2009 to August 2015. In this study, a total number of 33 carcinoma tongue patients having T1, T2, and T3 sizes with N0 and N+ clinical necks who were treated by supraomohyoid neck dissection, extended supraomohyoid neck dissection, and modified radical neck dissection were analyzed. The data was assessed using Shapiro-Wilk W test, Nagelkerke R² regression model, mean, and standard deviation.

Results

Metastasis to lymph nodes was present in 75% of patients. Level I and level II were the commonest sites to be involved, i.e., 20 patients. Three patients had skip metastasis out of which two patients had metastasis at level III (6%), and one patient had skip metastasis at level IV (3%).

Conclusion

The incidence of skip metastasis increases with tumor thickness and tumor size in tongue carcinoma patients.

Clinical relevance

The article reveals the positive relationship between tumor thickness, tumor size, and skip metastasis. The analysis shows tumor thickness as a higher predictor for skip metastasis with odds ratio of 5.5 compared to the tumor size having odd ratio 2.

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Surgical management of oral submucous fibrosis using buccal fat pad: a retrospective study of 30 cases

Abstract

The aim of our study was to evaluate the effectiveness of buccal fat pad (BFP) in the management of oral submucous fibrosis (OSMF). Retrospective records of 30 patients of OSMF treated with BFP with atleast a year of follow-up were analyzed. Patients were divided into groups based on the stages of OSMF. Surgical management consisted of resection of fibrous bands, bilateral temporalis myotomy, and coronoidectomy followed by grafting with BFP. There were 17 patients of stage III (mouth opening 16–25 mm) and 13 patients of stage IV OSMF (mouth opening less than 16 mm). The mean mouth opening of stage III group pre-operatively was 19.94 ± 2.19 mm which increased to a mean of 35.12 ± 5.69 mm (p < 0.0001). For patients with stage IV OSMF, the mouth opening increased from a pre-operative of 10.23 ± 4.07 mm to a post-operative of 31.46 ± 6.78 mm (p < 0.0001). No intra-operative complications were noted in any patient. Relapse was seen in 1 patient (5.8%) of stage III while 3 patients (23.07%) had relapse in stage IV group. Our results indicate that BFP is a good flap owing to its benefits which are easy to harvest and entails minimal morbidity for management of OSMF.

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Surgical management of oral submucous fibrosis using buccal fat pad: a retrospective study of 30 cases

Abstract

The aim of our study was to evaluate the effectiveness of buccal fat pad (BFP) in the management of oral submucous fibrosis (OSMF). Retrospective records of 30 patients of OSMF treated with BFP with atleast a year of follow-up were analyzed. Patients were divided into groups based on the stages of OSMF. Surgical management consisted of resection of fibrous bands, bilateral temporalis myotomy, and coronoidectomy followed by grafting with BFP. There were 17 patients of stage III (mouth opening 16–25 mm) and 13 patients of stage IV OSMF (mouth opening less than 16 mm). The mean mouth opening of stage III group pre-operatively was 19.94 ± 2.19 mm which increased to a mean of 35.12 ± 5.69 mm (p < 0.0001). For patients with stage IV OSMF, the mouth opening increased from a pre-operative of 10.23 ± 4.07 mm to a post-operative of 31.46 ± 6.78 mm (p < 0.0001). No intra-operative complications were noted in any patient. Relapse was seen in 1 patient (5.8%) of stage III while 3 patients (23.07%) had relapse in stage IV group. Our results indicate that BFP is a good flap owing to its benefits which are easy to harvest and entails minimal morbidity for management of OSMF.

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Induction of innate immune memory: the role of cellular metabolism

Jorge Domínguez-Andrés | Leo AB Joosten | Mihai G Netea

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