Postoperative care in ICU versus non-ICU after head and neck free-flap surgery: a systematic review and meta-analysis

Safety of An Enhanced Recovery After Surgery Protocol After Head and Neck Free Tissue Transfer

OBJECTIVES

Implementing enhanced recovery after surgery (ERAS) protocols and decreasing length of stay (LOS) have become a priority for major surgeries, including microvascular free tissue transfer (MVFTT) reconstruction of the head and neck. We describe an ERAS protocol with the goal to further reduce length of stay beyond national medians.

METHODS

Retrospective chart review between August 2016 and February 2023, including all patients who underwent MVFTT after oral cavity, skull base, salivary gland, and cutaneous ablative surgery. An ERAS protocol was implemented in March 2020.

RESULTS

A total of 383 patients were included. Approximately 59.8% underwent oral cavity MVFTT, 34.5% cutaneous and lateral skull base, and 5.8% maxillary and anterior skull base. A total of 209 (54.7%) patients had surgery prior to implementation of the ERAS protocol and 174 (45.3%) after. Median LOS decreased from 9 days (interquartile interval [IQR] 8-11) to 6 (IQR 5-7.5, p < 0.0001) following oral cavity MVFTT. For cutaneous and lateral skull base reconstruction, median LOS decreased from 6 days (IQR 5-8) to 3 (IQR 3-7, p < 0.0001). For anterior skull base and sinonasal MVFTT, median LOS decreased from 8 (IQR 7-9) to 5 days (IQR 4.5-7, p = 0.0005). Rate of discharge to skilled nursing or subacute rehabilitation facilities decreased (24% before ERAS, 9.2% after, p < 0.0001). Thirty-day readmission rate was similar before and after implementation (10.5% vs. 10.3, p = 0.954). Discharge to facility was associated with readmission (OR 2.34, 95% CI 1.12-4.89, p = 0.024).

CONCLUSION AND RELEVANCE

Implementation of the ERAS protocol was associated with decreased LOS. There was no increase in rate of readmission.

LEVEL OF EVIDENCE

N/A Laryngoscope, 2024.

The volume-outcome relationship in free-flap reconstruction: A nationwide study based on the Clinical Database

BACKGROUND

The association between successful reconstructive surgery with a free flap and hospital volume has not been well established. This study was designed to retrospectively analyze the outcome of free-flap surgery registered in a nationwide surgical registration system in Japan to clarify the relationship between free-flap survival and facilities' average annual number of free-flap surgeries.

METHODS

We analyzed data from 19,482 free flaps performed during 2017-2020 at 407 facilities throughout Japan. After adjusting for sex, age, and disease classification that differ between the groups, we examined the differences in the flap survival rates among the different facilities in terms of the average number of free-flap surgeries performed annually.

RESULTS

The total overall necrosis rate was 2.8%. Of all procedures, 14.9%, 12.9%, 33.4%, and 38.8% were performed at facilities with an average number of free-flap procedures <10, 10-19, 20-49, and ≥ 50 per year, respectively, and the respective rates of total necrosis were 6.0%, 3.8%, 2.1%, and 1.7%, respectively. The odds ratios and 95% confidence intervals of flap necrosis for facilities with ≥ 50 cases per year relative to those <10 were 2.70 (1.98-3.68) for nonbreast reconstruction cases and 5.72 (2.77-11.8) for breast reconstruction cases.

CONCLUSION

This analysis of a nationwide plastic surgery database showed that free-flap surgeries in institutions with a low average annual number of free-flap surgeries had a higher risk of total necrosis. Measures should be taken to either aggregate cases into high-volume centers or improve management at low-volume centers.

Reconstruction of head and neck oncological soft tissue defects post-resection using robotic surgery: a systematic review of the current literature

Head and neck cancer (HNC) resection often leaves soft tissue defects and exposure of vital structures. In recent years, there has been an increase in the use of robotic surgery for HNC resections. This allows for achieving smaller defects by using a tissue-sparing approach. However, this poses a challenge for reconstruction with less space available to perform microsurgery. We reviewed the efficacy of robotic surgery in the reconstruction of HNC defects by assessing the impact on flap success and complication rates. A literature search was conducted on Pubmed, Prospero, Dynamed, DARE, EMBASE, and COCHRANE databases. A total of 14 articles fulfilled the inclusion criteria with 96 patients aged mean (range) 60.7 (29-87) years, undergoing robotic reconstruction. The radial forearm flap was the most commonly used flap for robot-assisted reconstruction (n = 47). Robotic graft inset was performed in 94 cases and robotic assisted microvascular anastomoses for 25 vessels. One hundred per cent of flaps survived with a total of 25 (26.0%) complications (wound healing (n = 7), fistula formation (n = 2), haematoma (n = 4), dehiscence (n = 10), and wound infection (n = 2). Seven (12.2%) patients required additional surgery for managing complications and revision of the flap. Fewer complications were seen in patients undergoing robotic-assisted microvascular anastomoses compared with open anastomoses (4.0% versus 34.2%, p < 0.05). Robot-assisted reconstruction in HNC defects demonstrates 100% success rate with minor associated complications. Our results also support feasibility in both flap inset and microvascular anastomoses. Our results also demonstrate feasibility in both flap inset and microvascular anastomoses. Significantly fewer complications were seen with robotic-assisted microvascular anastomoses compared with open anastomoses.

Perioperative risk factors impact on intensive care unit length of stay (ICU length of stay) in oral squamous cell carcinoma

BACKGROUND

The trend in postoperative care for free flap patients is to deescalate from routine ICU admission into a specialty recovery unit. This study aims to investigate the predictive parameters in a routine perioperative clinical assessment that are expected to be directly correlated with prolonged ICU length of stay in at-risk patients who received oral reconstructive surgery for squamous cell carcinoma (OSCC).

METHODS

All patients who underwent ablative surgery for OSCC with free flap reconstruction and were managed in the ICU were included in this study. The primary outcome was ICU-length of stay. Perioperative, operative and postoperative parameters were analyzed using single test ( t-test, ANOVA analysis, correlation coefficients, effect size) and multivariate regression test. The P-value was set as < 0.005 to be considered statically significant.

RESULTS

The study included 136 homogeneous patients, with a mean ICU length of stay of 4.5 (± 4.43 day). Patients with pre-operative positive renal dysfunction (P = 0.004), peripheral vascular disease (P < 0.001), postoperative complications (P = 0.028) or positive heart failure class III (P < 0.001 ) were recognized as at-risk patients for a significantly longer ICU length of stay.

CONCLUSION

Patients with perioperative severe renal dysfunction, peripheral vascular disease, postoperative complication or high NYHA class are prone to have a significantly longer ICU length of stay. Several factors were considered as confounders contributing to increased ICU management time in combination with other variables. Additionally, in highly risk patient, the presence of the highly trained medical support, including the appropriate nursing care, is more critical than those patients without these risk factors.

Postoperative Deep Sedation after Microvascular Reconstructive Surgery for Oral Cancer Increases the Risk of Early Postoperative Pneumonia

This study investigated the effect of postoperative deep sedation after oral cancer reconstructive surgery on the occurrence of early postoperative pneumonia and early postoperative delirium. We obtained medical records of 108 consecutive patients who underwent microvascular reconstructive surgery at Tsukuba University Hospital for oral cancer between January 2013 and December 2021. Forty-six of them woke soon after surgery. Ten of these forty-six patients were restless and required immediate sedation within 3 h after surgery. The comparison between sedation group and no sedation group revealed early postoperative pneumonia in the no sedation group; however, sedation was not related to early postoperative delirium. The preoperative albumin levels of patients with postoperative pneumonia were significantly different (p = 0.03) than those of patients without postoperative pneumonia. The performance status (p = 0.02), preoperative albumin level (p = 0.02), and age 75 years or older (p = 0.02) were significantly associated with postoperative delirium. Restless patients and those who could not be sedated experienced delirium and pneumonia. The risk of pneumonia was increased for patients who were difficult to sedate.

Post-Operative Infections in Head and Neck Cancer Surgery: Risk Factors for Different Infection Sites

Background: Post-operative infections in head and neck cancer (HNC) surgery represent a major problem and are associated with an important increase in mortality, morbidity, and burden on the healthcare system. The aim of this retrospective observational study was to evaluate post-operative infections in HNC surgery and to analyze risk factors, with a specific focus on different sites of infection. Methods: Clinical data about 488 HNC patients who underwent surgery were recorded. Univariate and multivariate analyses were performed to identify risk factors for post-operative infections. Results: Post-operative infections were observed in 22.7% of cases. Respiratory and surgical site infections were the most common. Multiple site infections were observed in 3.9% of cases. Considering all infection sites, advanced stage, tracheotomy, and higher duration of surgery were risk factors at multivariate analysis. Median hospital stay was significantly longer in patients who had post-operative infection (38 vs. 9 days). Conclusions: Post-operative infections may negatively affect surgical outcomes. A correct identification of risk factors may help the physicians to prevent post-operative infections in HNC surgery.