Are adjuvant therapies for tonsillectomy evidence based?

Role of honey after tonsillectomy: a systematic review and meta-analysis of randomised controlled trials

BACKGROUND

Honey reduced post-tonsillectomy pain, but its effects on awakening at night, inflammation and healing of the tonsillar fossa were controversial.

OBJECTIVES

This systematic review and meta-analysis of randomised controlled trials (RCTs) evaluated the effect of oral honey on pain, consumption of painkillers, awakening at night, healing of tonsillar fossa and adverse effects in children after tonsillectomy.

METHODS

A search of MEDLINE, EMBASE, Scopus, CINAHL and Cochrane Collaboration Library databases was performed without any restriction of publication year. The end date of search was 30 June 2016. The search was supplemented by search from Google, hand search of cross-references of selected articles and reviews, and contacting the authors of different studies. The inclusion criteria were RCTs comparing the effect of honey with control on different outcomes, in children after tonsillectomy.

RESULTS

Our search generated 64 studies, and eight RCTs met our inclusion criteria. The methodological quality of RCTs was poor. Compared to control, honey significantly decreased postoperative pain from day 1 to day 7 (P = 0.05 to <0.0001); consumption of painkillers from days 1 to 5 (P = 0.03 to 0.003) and on day 10 (P = 0.002); and number of awakening at night due to pain on days 2 and 4 after tonsillectomy (P = 0.0001, 0.004). The healing of tonsillar fossa was significantly greater with honey compared to control on days 3-4 (P = 0.02) and days ≥9 (P = 0.01) after tonsillectomy. The adverse effects were not significantly different between honey and control groups. The Grading of Recommendation, Assessment, Development and Evaluation (GRADE) of the evidence for different outcomes varied from 'low' to 'very low'.

CONCLUSIONS

Honey improved pain, requirement of painkillers and awakening at night due to pain in children after tonsillectomy. There was little improvement in healing of tonsillar fossa. The GRADE of the evidence varied from 'low' to 'very low'. A good-quality, placebo-controlled RCT of different doses and durations of administration of honey is required to evaluate its clear efficacy and safety in children after tonsillectomy.

Antibiotics to reduce post-tonsillectomy morbidity

BACKGROUND

This is an update of a Cochrane Review first published in The Cochrane Library in Issue 2, 2008 and previously updated in 2010.Tonsillectomy continues to be one of the most common surgical procedures performed in children and adults. Despite improvements in surgical and anaesthetic techniques, postoperative morbidity, mainly in the form of pain, remains a significant clinical problem. Postoperative bacterial infection of the tonsillar fossa has been proposed as an important factor causing pain and associated morbidity, and some studies have found a reduction in morbid outcomes following the administration of perioperative antibiotics.

OBJECTIVES

To determine whether perioperative antibiotics reduce pain and other morbid outcomes following tonsillectomy.

SEARCH METHODS

We searched the Cochrane Ear, Nose and Throat Disorders Group Trials Register; the Cochrane Central Register of Controlled Trials (CENTRAL); PubMed; EMBASE; CINAHL; Web of Science; BIOSIS Previews; Cambridge Scientific Abstracts; ICTRP and additional sources for published and unpublished trials. The date of the most recent search was 20 March 2012.

SELECTION CRITERIA

All randomised controlled trials examining the impact of perioperative administration of systemic antibiotics on post-tonsillectomy morbidity in children or adults.

DATA COLLECTION AND ANALYSIS

Two authors independently collected data. Primary outcomes were pain, consumption of analgesia and secondary haemorrhage (defined as significant if patient re-admitted, transfused blood products or returned to theatre, and total (any documented) haemorrhage). Secondary outcomes were fever, time taken to resume normal diet and activities and adverse events. Where possible, we generated summary measures using random-effects models.

MAIN RESULTS

Ten trials, comprising a pooled total of 1035 participants, met the eligibility criteria. Most did not find a significant reduction in pain with antibiotics. Similarly, antibiotics were mostly not shown to be effective in reducing the need for analgesics. Antibiotics were not associated with a reduction in significant secondary haemorrhage rates (risk ratio (RR) 0.49, 95% CI 0.08 to 3.11, P = 0.45) or total secondary haemorrhage rates (RR 0.90, 95% CI 0.56 to 1.44, P = 0.66). With regard to secondary outcomes, antibiotics reduced the proportion of patients with fever (RR 0.63, 95% CI 0.46 to 0.85, P = 0.002).

AUTHORS' CONCLUSIONS

The present systematic review, including meta-analyses for select outcomes, suggests that although individual studies vary in their findings, there is no evidence to support a consistent, clinically important impact of antibiotics in reducing the main morbid outcomes following tonsillectomy (i.e. pain, need for analgesia and secondary haemorrhage rates). The limited benefit apparent with antibiotics may be a result of positive bias introduced by several important methodological shortcomings in the included trials. Based on existing evidence, therefore, we would advocate against the routine prescription of antibiotics to patients undergoing tonsillectomy. Whether a subgroup of patients who might benefit from selective administration of antibiotics exists is unknown and needs to be explored in future trials.

Antibiotics to reduce post-tonsillectomy morbidity

BACKGROUND

This is an update of a Cochrane Review first published in The Cochrane Library in Issue 2, 2008.Tonsillectomy continues to be one of the most common surgical procedures performed in children and adults. Despite improvements in surgical and anaesthetic techniques, postoperative morbidity, mainly in the form of pain, remains a significant clinical problem. Postoperative bacterial infection of the tonsillar fossa has been proposed as an important factor causing pain and associated morbidity, and some studies have found a reduction in morbid outcomes following the administration of perioperative antibiotics.

OBJECTIVES

To determine whether perioperative antibiotics reduce pain and other morbid outcomes following tonsillectomy.

SEARCH STRATEGY

We searched the Cochrane ENT Group Trials Register, Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2009, Issue 4), MEDLINE (1950 to 2009) and EMBASE (1974 to 2009). The date of the last search was 30 October 2009.

SELECTION CRITERIA

All randomised controlled trials examining the impact of perioperative administration of systemic antibiotics on post-tonsillectomy morbidity in children or adults.

DATA COLLECTION AND ANALYSIS

Two authors independently collected data. Primary outcomes were pain, consumption of analgesia and secondary haemorrhage (defined as significant if patient re-admitted, transfused blood products or returned to theatre, and total (any documented) haemorrhage). Secondary outcomes were fever, time taken to resume normal diet and activities and adverse events. Where possible, we generated summary measures using random-effects models.

MAIN RESULTS

Ten trials, comprising a pooled total of 1035 participants, met the eligibility criteria. Most did not find a significant reduction in pain with antibiotics. Similarly, antibiotics were mostly not shown to be effective in reducing the need for analgesics. Antibiotics were not associated with a reduction in significant secondary haemorrhage rates (relative risk (RR) 0.49, 95% CI 0.08 to 3.11, P = 0.45) or total secondary haemorrhage rates (RR 0.90, 95% CI 0.56 to 1.44, P = 0.66). With regard to secondary outcomes, antibiotics reduced the proportion of subjects with fever (RR 0.63, 95% CI 0.46 to 0.85, P = 0.002).

AUTHORS' CONCLUSIONS

The present systematic review, including meta-analyses for select outcomes, suggests that although individual studies vary in their findings, there is no evidence to support a consistent, clinically important impact of antibiotics in reducing the main morbid outcomes following tonsillectomy (i.e. pain, need for analgesia and secondary haemorrhage rates). Limited benefit apparent with antibiotics may be a result of positive bias introduced by several important methodological shortcomings in the included trials. Based on existing evidence therefore, we would advocate against the routine prescription of antibiotics to patients undergoing tonsillectomy. Whether a subgroup of patients who might benefit from selective administration of antibiotics exists is unknown and needs to be explored in future trials.

Tonsillectomy in Australia: An audit of surgical technique and postoperative care

Objective

To assess current tonsillectomy practice among Australian otolaryngologists.

Study Design

An audit based on an anonymous 19-item postal questionnaire on tonsillectomy technique and perioperative management sent to all Australian otolaryngology specialists.

Subjects and Methods

Two hundred eighty-four otolaryngologists registered with the Australian Society of Otolaryngology-Head and Neck Surgery database were sent the questionnaire.

Results

A 72.5 percent response rate was obtained. Monopolar diathermy was the most common technique for dissection (45%) and hemostasis (54%). Bipolar diathermy was used for hemostasis in 20 percent. Cold-steel dissection was routinely used by 36 percent, ties were used for hemostasis only by 11 percent of surgeons. The use of local anesthetic, dexamethasone, and postoperative antibiotics was 45 percent, 40 percent, and 20 percent, respectively. Seventy-six percent of surgeons always observed tonsil patients overnight.

Conclusion

Australian surgeons still use monopolar diathermy as their preferred technique for tonsillectomy. Local anesthetic, dexamethasone, and postoperative antibiotics are used infrequently, and fewer than 1:4 surgeons perform day-case tonsillectomy.

Antibiotics to reduce post-tonsillectomy morbidity

BACKGROUND

Tonsillectomy continues to be one of the most common surgical procedures performed in children and adults. Despite improvements in surgical and anaesthetic techniques, postoperative morbidity, mainly in the form of pain, remains a significant clinical problem. Postoperative bacterial infection of the tonsillar fossa has been proposed as an important factor causing pain and associated morbidity, and some studies have found a reduction in morbid outcomes following the administration of perioperative antibiotics.

OBJECTIVES

To determine whether perioperative antibiotics reduce pain and other morbid outcomes following tonsillectomy.

SEARCH STRATEGY

Cochrane ENT Group Trials Register, Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library, Issue 1 2007), MEDLINE (1950 to 2007) and EMBASE (1974 to 2007) were searched. The date of the last search was March 2007.

SELECTION CRITERIA

All randomised controlled trials examining the impact of perioperative administration of systemic antibiotics on post-tonsillectomy morbidity in children or adults.

DATA COLLECTION AND ANALYSIS

Two authors independently collected data. Primary outcomes were pain, consumption of analgesia and secondary haemorrhage (defined as significant if patient re-admitted, transfused blood products or returned to theatre, and total if any documented haemorrhage). Secondary outcomes were fever, time taken to resume normal diet and activities and adverse events. Where possible, summary measures were generated using random-effects models.

MAIN RESULTS

Nine trials met the eligibility criteria. Most did not find a significant reduction in pain with antibiotics. Similarly, antibiotics were not shown to be effective in reducing the need for analgesics. Antibiotics were not associated with a reduction in significant secondary haemorrhage rates (Relative Risk (RR) 0.49, 95% CI 0.08 to 3.11, P = 0.45) or total secondary haemorrhage rates (RR 0.92, 95% CI 0.45 to 1.87, P = 0.81). With regard to secondary outcomes, antibiotics reduced the proportion of subjects with fever (RR 0.63, 95% CI 0.46 to 0.85, P = 0.002).

AUTHORS' CONCLUSIONS

The present review suggests that there is little or no evidence that antibiotics reduce the main morbid outcomes following tonsillectomy (i.e. pain, the need for analgesia or secondary haemorrhage rates). They do however appear to reduce fever. Some important methodological shortcomings exist in the included trials which are likely to have produced bias favouring antibiotics. We therefore advocate caution when prescribing antibiotics routinely to all patients undergoing tonsillectomy. Whether a subgroup of patients who might benefit from selective administration of antibiotics exists is unknown and needs to be explored in future trials.

Can postoperative pains following tonsillectomy be relieved by honey? A prospective, randomized, placebo controlled preliminary study

OBJECTIVE

To compare the effectiveness of acetaminophen versus acetaminophen-plus-honey following pediatric tonsillectomy and adenoidectomy.

DESIGN

Prospective, randomized, and placebo controlled clinical trial.

SETTING

Tertiary care facility in Ankara, Turkey.

PATIENTS

Sixty consecutive tonsillectomy patients randomized to two groups.

INTERVENTIONS

The acetaminophen group was treated with antibiotics (amoxicillin-clavulonic acid), acetaminophen and placebo, acetaminophen-plus-honey group was treated with antibiotics (amoxicillin-clavulonic acid), acetaminophen, and honey. Visual analogue scale (VAS) was applied for subjective assessment of postoperative pains, while the number of painkillers taken daily and awakening at night due to pain were used for objective assessment. The amount of epithelization was used for assessment of tonsillary fossa recovery.

OUTCOME MEASURES

The difference between acetaminophen and acetaminophen-plus-honey groups was statistically significant both in terms of VAS and number of painkillers taken within the first 2 postoperative days (p<0.001). Although there was no statistically significant difference between groups regarding the VAS scores on the 3rd postoperative day and after, the number of painkillers taken differed significantly until the 8th postoperative day (p<0.001 for first 7 postoperative days; p=0.003 for 8th day). No significant difference was found between groups regarding the number of awakening at night (p=0.36). Tonsillary fossa epithelization was more rapid in the acetaminophen-plus-honey group (p<0.001).

CONCLUSION

Oral administration of honey following pediatric tonsillectomy may relieve postoperative pain and may decrease the need for analgesics. Prospective, randomized, and double-blind studies should further be conducted in order to confirm the data obtained in this study and develop a standard protocol to achieve maximum clinical efficiency.