Hemostatic glues in tonsillectomy: A systematic review

An evaluation of the effect of the use of platelet-rich fibrin on tonsillectomy results

PURPOSE

The aim of this study was to investigate the effect of liquid platelet-rich fibrin (PRF) during tonsillectomy on postoperative results.

PATIENTS AND METHODS

This study included 41 patients who underwent tonsillectomy between April 2022 and January 2023. Liquid-PRF at a dose of 1 ​cc was injected to three different points of one of the tonsil fossae, selected at random intraoperatively. The same amount of physiological saline was injected to the symmetrical points on the opposite tonsil fossa using the same size injector. Pain, wound healing, and bleeding were evaluated on postoperative days 1, 7, and 14. The data of both sides were compared statistically as the study and control sides.

RESULTS

The pain scores were the highest for both sides on postoperative day 1, and gradually decreased in the following days, with no significant difference determined between the sides (p ​> ​0.05). Wound healing rates in the 1st week and 2 ​nd ​week were similar for both sides. Although there were more patients who have 100 ​% epithelization in the PRF group on the postoperative day 14, the difference between the groups was not statistically significant (p ​> ​0.05).

CONCLUSIONS

The injection of PRF following tonsillectomy had no significant effect on postoperative pain, wound healing, or bleeding.

The safety and efficacy of fibrin sealant for thyroidectomy: a systematic review and meta-analysis of randomized controlled trials

Fibrin sealants have recently been thoroughly studied in several surgical specialties; however, results are conflicting. We aimed to examine the safety and efficacy of fibrin sealant patients having thyroidectomies. A thorough, systematic literature search was carried out using the terms thyroidectomy and fibrin sealant using PubMed, Cochrane Library, and Clinicaltrials.gov on December 25, 2022. The primary outcome of interest in this review was the amount of drainage, whereas hospitalization, the length of drain retention, and temporary dysphonia were secondary outcomes. Our meta-analysis (n = 249) showed that application of fibrin sealant is associated with lesser total drainage [SMD -2.76 (-4.83, -0.69); P = 0.009; I2 97%], but not with retention time of drainage [SMD -2.35 (-4.71, 0.01); P = 0.05; I2 98%], hospitalization time [SMD -1.65 (-3.70, 0.41); P = 0.12; I2 97%], and transient dysphonia [RR 1.01 (0.27, 3.82); P = 0.99; I2 0%]. The systematic review found that the use of fibrin sealant in thyroid surgery is positive in total volume drainage but not with the retention time of drainage, hospitalization time, and transient dysphonia. It is notable to remember that this interpretation is complicated by uneven, occasionally subpar technique and trial reporting, according to this systematic review's findings.

Perioperative management in chronically anticoagulated children undergoing tonsillectomy

BACKGROUND

When undergoing tonsillectomy, patients at high risk of thrombosis who require chronic anticoagulation therapy pose a special challenge as bleeding may occur up to 2 weeks after surgery. Because of a lack of evidence-based data, there is no consensus on the best management for such patients. The objective of our study was to review perioperative anticoagulation bridging strategies in children undergoing tonsillectomy.

METHODS

The study group were a retrospective series of patients on chronic anticoagulation therapy at high risk of a thromboembolic event, who underwent tonsillectomy from 2010 to 2021. Patients whose anticoagulation treatment was discontinued because of a low risk of thromboembolic events were excluded.

RESULTS

Four patients met the inclusion criteria (age range, 1.5-16.1 years). All patients were admitted prior to surgery for bridging therapy with intravenous unfractionated heparin (UFH), drip-titrated to a therapeutic dose until 4-6 h prior to surgery. The estimated blood loss during surgery was minimal in all surgeries. Unfractionated heparin was readministered according to the hospital protocol on the night of surgery and titrated to a therapeutic dose. Warfarin was restarted within 2 days postsurgery for all patients. High-risk patients were kept in hospital until postoperative day 6-8 because of concern for delayed bleeding. One patient was noticed to have blood-tinged sputum requiring no intervention; none of the patients developed early or delayed hematemesis.

CONCLUSIONS

Our data show that bridging therapy with UFH has been successful in chronically anticoagulated patients undergoing tonsillectomy. These patients require multidisciplinary care for the management of their pre- and postoperative course.

Comparative systematic review and meta-analysis of the therapeutic effects of coblation tonsillectomy versus electrocautery tonsillectomy

BACKGROUND

Surgical removal of the primary lesion is a common treatment for chronic tonsillitis, recurrent tonsillitis, and tonsillar hypertrophy, and is the most widely performed surgery in otorhinolaryngology. With the development and progress of medical science and technology, the methods of tonsillectomy have gradually diversified, and it is of great significance to seek the best tonsillectomy method. This meta-analysis explored the advantages and disadvantages of coblation tonsillectomy (CT) and electrocautery tonsillectomy (ET).

METHODS

The keywords "coblation", "radiofrequency ablation", "electrocautery", and "tonsillectomy" were used to search the PubMed, Embase, Cochrane library, Clinicaltrials.gov, and Google Scholar databases, and randomized controlled trials (RCTs) of the 2 procedures since the establishment of the database were included. After screening and bias risk assessment, a meta-analysis was performed using Stata 16.0 software.

RESULTS

A total of 10 articles met the inclusion criteria and entered the final meta-analysis. There were 1,056 participants, including 547 patients who underwent CT and 509 patients who underwent ET. There was no significant difference in the operation time between CT and ET [standard mean difference (SMD) =0.39, 95% CI: -0.35 to 1.13, Z=1.044, P=0.296]. CT resulted in less intraoperative blood loss than ET (SMD =-2.62, 95% CI: -4.83 to -0.41, Z=-2.322, P=0.020). The postoperative pain score of CT was less than ET, but the difference was not statistically significant (SMD =-0.28, 95% CI: -0.58 to 0.01, Z=-1.866, P=0.062). CT resulted in less time to return to normal diet after surgery than ET, and the difference was statistically significant (SMD =-0.36, 95% CI: -0.60 to -0.12, Z=-2.918, P=0.004).

DISCUSSION

CT resulted in less intraoperative blood loss and faster postoperative recovery than ET, but there was no significant difference in operation time, postoperative pain, and the incidence rate of postoperative complications between the 2 groups.

The effect of applying amniotic membrane on post-tonsillectomy pain and bleeding

PURPOSE

Pain and hemorrhage are common morbidities after tonsillectomy. Although many studies have focused on post-tonsillectomy pain, inadequate researches are available on wound healing. Hence, there is a definite need for a novel technique to facilitate the healing process and thereby improving the post-tonsillectomy recovery.

METHODS

This prospective and randomized study was conducted on 60 adult patients who underwent tonsillectomy. They were divided into two groups of control and amniotic membrane (AM). Human amniotic membrane was applied over the tonsillar bed as a biologic dressing. Post-tonsillectomy pain and bleeding were evaluated. Also, the healing rate was assessed on days 5, 10 and 15 post-operatively.

RESULTS

The pain score in the AM group was lower than that in the control group during the first week after surgery (P < 0.0001). Moreover, the AM group returned faster to their normal diet in comparison with the control group (P < 0.0001). With respect to the healing rate, there were no significant differences between the groups on day 5 (P > 0.05), whereas a significant difference was seen on days 10 and 15 post-surgery (P < 0.0001). There was no significant difference between the two groups in terms of post-operative bleeding (P ≅ 1).

CONCLUSION

We observed that the use of AM graft as a biologic dressing might be beneficial in reducing post-operative pain and promoting the wound healing process. The results represent a further step toward developing a new technique for coverage of tonsillar fossa with sheeting or wearing grafts.

Methodological Quality of Systematic Reviews and Meta-analyses Published in High-Impact Otolaryngology Journals

OBJECTIVE

To assess the methodological quality of intervention-focused systematic reviews (SRs) and meta-analyses (MAs) published in high-impact otolaryngology journals.

DATA SOURCES

Ovid Medline, Embase, and Cochrane Library.

REVIEW METHODS

A comprehensive search was performed for SR and MA citations from 2012 to 2017 in the 10 highest impact factor otolaryngology journals. Abstracts were screened to identify published manuscripts in which the authors indicated clearly that they were performing an SR or MA. Applying a modified typology of reviews, 4 reviewers characterized the review type as SR, MA, or another review type. A simplified version of the AMSTAR 2 (A MeaSurement Tool to Assess systematic Reviews 2) tool was used to assess the reporting and methodological quality of the SRs and MAs that were focused on interventions.

RESULTS

Search and abstract screening generated 499 manuscripts that identified themselves as performing an SR or MA. A substantial number (85/499, 17%) were review types other than SRs or MAs, including 34 (7%) that were literature reviews. In total, 236 SRs and MAs focused on interventions. Over 50% of these SRs and MAs had weaknesses in at least 3 of the 16 items in the AMSTAR 2, and over 40% had weaknesses in at least 2 of the 7 critical domains. Ninety-nine percent of SRs and MAs provided critically low confidence in the results of the reviews.

CONCLUSION

Intervention-focused SRs and MAs published in high-impact otolaryngology journals have important methodological limitations that diminish confidence in the results of these reviews.

Update review of pain control methods of tonsil surgery

Pain after tonsil surgery is troublesome because it causes discomfort. In addition, handling patients with postoperative pain is challenging to otolaryngologists. Many laboratory studies have assessed the use of analgesics and surgical techniques to discover methods for effective control of postoperative pain associated with tonsil surgery. In this review article, we summarize and provide a comprehensive overview of current methods for the control of pain after tonsil surgery based on findings of recent studies. Although powered intracapsular tonsillotomy is not popular yet, it seems to be an effective option among various surgical techniques. More discussion about powered intracapsular tonsillotomy should be done in the future. On the other hand, surgery with a harmonic scalpel, fibrin glue, or cryoanalgesia seems ineffective. When reviewing medical treatment methods, the use of nonsteroidal anti-inflammatory drugs, steroids, and/or gabapentin/pregabalin seems to be effective. However, the use of opioid (especially codeine) for children should be avoided because of possible respiratory insufficiency. Ketorolac is dangerous because of the risk of hemorrhage. We should continue to focus on the development of novel postoperative pain control techniques with no or low complications.

Topical biomaterials to prevent post-tonsillectomy hemorrhage

Despite advances in surgical technique, postoperative hemorrhage remains a common cause of mortality and morbidity for patients following tonsillectomy. Application of biomaterials at the time of tonsillectomy can potentially accelerate mucosal wound healing and eliminate the risk of post-tonsillectomy hemorrhage (PTH). To understand the current state and identify possible routes for the development of the ideal biomaterials to prevent PTH, topical biomaterials for eliminating the risk of PTH were reviewed. Alternative topical biomaterials that hold the potential to reduce the risk of PTH were also summarized.