Risk factors for post-tonsillectomy hemorrhage in adult population: Does smoking history have an impact?

Adult tonsillectomy-increased pain scores are correlated with risk of bleeding: a retrospective cohort study

PURPOSE

Tonsillectomy is among the most common surgical procedures performed worldwide, and post-tonsillectomy bleeding is a serious complication. This study aims to investigate the role of post-operative pain as a risk factor for bleeding in adults.

METHODS

A retrospective cohort study of adults who underwent tonsillectomy in a tertiary referral center between 2015-2021. Medical records were reviewed for demographics, diagnoses, surgical technique, treatments, pain scores (measured by visual analogue scale 0-10), readmissions, and bleeding events. The primary outcome was return to the operating room for hemostasis, and secondary outcomes were bleeding events and consumption of additional analgesic doses.

RESULTS

Of the 274 patients, 137 (50%) were males, the mean age was 30.3 ± 12 years (range 18-82), and 33 (12%) were smokers. Indications for tonsillectomy were recurrent throat infections in 213 (77.7%) patients and obstructive sleep apnea in 61 (22.3%). Surgical technique was cold dissection in 238 (86.9%) patients and electrocautery in 36 (13.1%). Primary post-tonsillectomy bleeding (< 24 h of surgery) occurred in 6 (2%) patients, and secondary bleeding (later than 24 h from tonsillectomy) in 43 (15.7%). A total of 19 (7%) patients necessitated surgical hemostasis. After controlling for technique and other confounders, high pain scores (VAS ≥ 5) on post-operative days 1 and 2 were associated with increased risk of bleeding that necessitated surgical hemostasis (adjusted odds ratio 6.9, 95% confidence interval 1.7-44.5). Other independent risk factors were male sex, age < 30 years, smoking, and recurrent throat infections.

CONCLUSIONS

Higher pain scores following tonsillectomy are correlated with bleeding episodes requiring surgical intervention in adults. Further studies may explore the role of different intensive pain regimens in minimizing the risk of bleeding.

Investigation of Adult Post-Tonsillectomy Hemorrhage Rates and the Impact of NSAID Use

OBJECTIVES/HYPOTHESIS

Tonsillectomy is one of the most common ambulatory surgeries performed in the United States, yet the incidence of post-tonsillectomy hemorrhage (PTH) in adults remains unclear. In addition, any association between non-steroidal anti-inflammatory drugs (NSAIDs) and PTH in adults is currently unknown. The aim of this study is to examine the incidence and management of adult PTH at a single academic center and to assess for any association between NSAID use and PTH in adults.

STUDY DESIGN

Retrospective chart review.

METHODS

We conducted a retrospective chart review of adult tonsillectomies performed at our institution between January 1, 2012, and December 30, 2019. Demographics, past medical history, medications, NSAID use, surgical indication, bleeding events, and interventions were documented. The rate of PTH was calculated, logistic regression was performed to assess for any predictive factors, and odds ratios were calculated for NSAID use and PTH.

RESULTS

A total of 1,057 adult tonsillectomies were performed within the aforementioned time period. A total of 126 patients experienced 163 bleeding events for a postoperative hemorrhage rate of 11.9%. Most were controlled with bedside interventions, while 29 (23%) bled more than once. The hemorrhage rate for those who were not prescribed NSAIDs postoperatively (n = 625) was 11.7%, compared to 12.6% for those who did receive NSAIDs postoperatively (n = 432), which was not significantly different (adjusted odds ratio 1.01, 95% confidence interval 0.69-1.49; P = .95).

CONCLUSIONS

This retrospective cohort study of 1,057 adult patients found the incidence of PTH to be 11.9%. This study found no association between the use of NSAIDs and the rate of PTH, although a higher-powered study is needed.

LEVEL OF EVIDENCE

3 Laryngoscope, 132:949-953, 2022.

Risk factors of post-tonsillectomy hemorrhage in adults

OBJECTIVE

Tonsillectomy is an essential surgery and is conducted on both children and adults. However, the risk factors of post-tonsillectomy hemorrhage for adult patients remain unclear. In this study, we analyzed post-tonsillectomy hemorrhage in adult patients.

METHODS

We retrospectively analyzed 325 adult patients who underwent a tonsillectomy between 2014 and 2018 in our facilities.

RESULTS

The average age of this study's population was 31.7 ± 10.5 years (range: 19-70 years), and 250 (76.9%) patients were male. Overall, post-tonsillectomy hemorrhage occurred in 71 (21.8%) patients and 5 (1.5%) patients required a second surgery for hemostasis. Post-tonsillectomy hemorrhage often occurred on postoperative day zero or six. Using multiple logistic regression analysis, current smoking status (odds ratio 3.491; 95% confidence interval 1.813-6.723), male sex (odds ratio 3.924; 95% confidence interval 1.548-9.944), and perioperative non-steroidal anti-inflammatory drug administration (odds ratio 7.930; 95% confidence interval 1.004-62.64) were revealed as overall post-tonsillectomy hemorrhage risk factors. To analyze the hemorrhage period after tonsillectomy, we categorized the post-tonsillectomy hemorrhage patients into the primary (bleeding within postoperative day one) and secondary hemorrhage (bleeding on or after postoperative day two) groups. The current smoking status and older age were risk factors for primary hemorrhage and the current smoking status and sex (male) were risk factors for secondary hemorrhage.

CONCLUSIONS

In this study, smoking status, sex, and perioperative non-steroidal anti-inflammatory drug administration were the clinical risk factors for adult post-tonsillectomy hemorrhage. Thus, smoking cessation is, at least, mandatory for patients who receive tonsillectomy to avoid post-tonsillectomy hemorrhage.

LEVEL OF EVIDENCE

4.