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Τρίτη 8 Μαρτίου 2022

A Comprehensive Assessment of Blood Transfusions in Elective Thyroidectomy Based on 180,483 Patients

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Objectives

To assess the incidence, risk factors, and complications of blood transfusions (BTs) in elective thyroidectomy patients.

Methods

A retrospective cohort study was conducted using the American College of Surgeons National Surgical Quality Improvement Program. Adult patients who underwent elective thyroidectomy from 2005 to 2019 were divided into two cohorts based on whether they received BT or not. Multivariable binary logistic regression models were used to identify risk factors of BT and its impact on postoperative complications.

Results

Of 180,483 patients, 0.13% received BT. Risk factors for BT included underweight body mass index (BMI) (adjusted odds ratio [OR] 3.179, 95% confidence interval [CI] 1.444–6.996), bleeding disorders (OR 2.121, 95% CI 1.149–3.913), anemia (OR 4.730, 95% CI 3.472–6.445), preoperative transfusion (OR 7.230, 95% CI 1.454–35.946), American Society of Anesthesiology physical statuses 3–5 (OR 3.103, 95% CI 2.143–4.492), operative time >150 min (OR 4.390, 95% CI 1.996–9.654), and inpatient thyroidectomy (OR 5.791, 95% CI 3.816–8.787). In addition, transfusion was independently associated with any postoperative complication, non-infectious, cardiac, pulmonary, renal, vascular, or infectious complications, surgical site infection, sepsis, septic shock, wound disruption, pneumonia, unplanned reoperation, prolonged length of stay, and mortality.

Conclusion

Recognition of risk factors of BT is imperative to identify at-risk patients and reduce transfusions by controlling modifiable risk factors such as anemia, operative time, and BMI. In cases where transfusions are still indicated, surgeons should optimize care to prevent or adequately manage transfusion-associated complications.

Level of evidence

3 Laryngoscope, 2022

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Effect of Hearing Rehabilitation Therapy Program in Hearing Aids Users: A Prospective Randomized Controlled Study

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Clin Exp Otorhinolaryngol. 2022 Mar 4. doi: 10.21053/ceo.2021.00948. Online ahead of print.

ABSTRACT

BACKGROUND: Despite sufficient hearing gains, many patients with hearing loss have difficulty using hearing aids due to poor word recognition ability. This study was performed to introduce our hearing rehabilitation therapy (HRT) program for hearing aid users and to evaluate its effect on hearing improvement.

STUDY DESIGN: Prospective randomized case-control study.

SUBJECTS AND METHODS: Thirty-seven participants with moderate to moderate-severe sensorineural hearing loss who had used bilateral hearing aids for more than three months with sufficient functional hearing gain were enrolled in this study. Nineteen participants were randomly assigned to the control group (CG) and 18 patients were assigned to participate in our HRT program once a week for eight consecutive weeks (hearing rehabilitation therapy group, HRTG). Their h earing results and questionnaire scores regarding hearing handicap and hearing aid outcomes were prospectively collected and compared between the two groups.

RESULTS: After completing eight weeks of the HRT program, the HRTG showed significantly higher delta score of consonant-only and consonant-vowel sound perception compared to the CG (p<0.05). In addition, the HRTG had a significant improvement in hearing ability as measured by two questionnaires (p<0.05), while no differences were observed in the CG. However, word and sentence recognition test results did not show significant differences between the two groups.

CONCLUSION: Even after short-term HRT, patients had subjectively better hearing outcomes and improved phoneme perception ability; this provides scientific evidence regarding a possible positive role for HRT programs in hearing aid users. Further validation in a larger population with a long-term follow-up study is needed.

PMID:35255665 | DOI:10.21053/ceo.2021.00948

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Δευτέρα 7 Μαρτίου 2022

Limited contribution of indocyanine green (ICG) angiography for the detection of parathyroid glands and their vascularization during total thyroidectomy: A STROBE observational study

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Eur Ann Otorhinolaryngol Head Neck Dis. 2022 Mar 2:S1879-7296(22)00026-6. doi: 10.1016/j.anorl.2022.02.004. Online ahead of print.

ABSTRACT

INTRODUCTION: In total thyroidectomy, indocyanine green (ICG) angiography has mainly been evaluated at end of procedure to predict postoperative hypoparathyroidism. By using it during surgery, we sought to determine whether it could also be an aid to the surgeon.

OBJECTIVE: To determine whether ICG used intraoperatively in total thyroidectomy modified the surgical procedure.

MATERIAL AND METHOD: Thirty-two patients who underwent ICG angiography during total thyroidectomy were included in our single-center retrospective study. The number of parathyroid (PT) glands visualized in white light and on ICG angiography was collected, as well as PT vitality of at end of surgery according to these two modalities. Vitality scores were 0 (no vascularity), 1 (moderately vascularized) or 2 (well vascularize d). Postoperative calcemia at D1, D2 and D7 was analyzed.

RESULTS: In the 32 operations, the surgical procedure was modified in 10 cases (31%). The average number of PTs detected was 2.4 (77 PT) on ICG angiography and 2 (65 PT) in white light. Eleven patients (37.5%) had postoperative hypocalcemia. Cumulative vitality scores at end of procedure were 3.75/8 and 3.37/8 in white light and on ICG angiography respectively (P=0.648). The use of the device did not predict the occurrence of postoperative hypocalcemia.

CONCLUSION: Indocyanine green angiography used in thyroid surgery could assist the surgeon in the identification of PT glands, sparing them in one third of cases.

PMID:35248501 | DOI:10.1016/j.anorl.2022.02.004

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Current management and perspectives for locally advanced nasopharyngeal carcinoma

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Cancer Radiother. 2022 Mar 3:S1278-3218(22)00030-0. doi: 10.1016/j.canrad.2021.11.026. Online ahead of print.

ABSTRACT

Nasopharyngeal carcinoma diagnosis is often made at a locally advanced stage (75 to 90% of cases) due to its deep localization. Concomitant radio-chemotherapy is the cornerstone of the treatment of locally advanced forms. The advent of intensity-modulated radiotherapy has improved oncological outcomes and reduced toxicity and is currently the gold standard for irradiation technique. For the locally advanced stage, the addition of induction chemotherapy has become the new standard care according to the latest international recommendations to reduce tumor volumes and act early on micro-metastases. Despite these therapeutic advances, the local and especially distant failure rate remains high. This article reviews current treatment strategies and discuss new approaches and perspectives of locoregional and systemic treatment to re duce treatment failures.

PMID:35249815 | DOI:10.1016/j.canrad.2021.11.026

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Firing Rate Adaptation of the Human Auditory Nerve Optimizes Neural Signal-to-Noise Ratios

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Abstract

Several physiological mechanisms act on the response of the auditory nerve (AN) during acoustic stimulation, resulting in an adjustment in auditory gain. These mechanisms include—but are not limited to—firing rate adaptation, dynamic range adaptation, the middle ear muscle reflex, and the medial olivocochlear reflex. A potential role of these mechanisms is to improve the neural signal-to-noise ratio (SNR) at the output of the AN in real time. This study tested the hypothesis that neural SNRs, inferred from non-invasive assessment of the human AN, improve over the duration of acoustic stimulation. Cochlear potentials were measured in response to a series of six high-level clicks embedded in a series of six lower-level broadband noise bursts. This paradigm elicited a compound action potential (CAP) in response to each click and to the onset of each noise burst. The ratio of CAP amplitudes elicited by each click and noise burst pair (i.e., neural SNR) was tracke d over the six click/noise bursts. The main finding was a rapid (< 24 ms) increase in neural SNR from the first to the second click/noise burst, consistent with a real-time adjustment in the response of the auditory periphery toward improving the SNR of the signal transmitted to the brainstem. Analysis of cochlear microphonic and ear canal sound pressure recordings, as well as the time course for this improvement in neural SNR, supports the conclusion that firing rate adaptation is likely the primary mechanism responsible for improving neural SNR, while dynamic range adaptation, the middle ear muscle reflex, and the medial olivocochlear reflex played a secondary role on the effects observed in this study. Real-time improvements in neural SNR are significant because they may be essential for robust encoding of speech and other relevant stimuli in the presence of background noise.

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A case of musculi peronaeus tertius anatomic variation

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Surg Radiol Anat. 2022 Mar 7. doi: 10.1007/s00276-022-02899-7. Online ahead of print.

ABSTRACT

In the routine dissections study for medical postgraduates, a rare anatomical variation between the right leg and the ankle was observed on the Asian male cadaver. The peronaeus tertius muscle in this cadaver's right leg divided into two tendons: the first tendon was attached to the base of the fifth metatarsal bone, and the second tendon was inserted into the base of the fourth me tatarsal bone. The purpose of this paper is to provide detailed anatomical case reports, and to discuss the possible causes and mechanisms of the variation by reviewing relevant literature, so as to provide some reference for future anatomical and clinical related disease research.

PMID:35254492 | DOI:10.1007/s00276-022-02899-7

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Bone fusion in transcele reconstruction of frontoethmoidal meningoencephalocele

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Br J Neurosurg. 2022 Mar 7:1-5. doi: 10.1080/02688697.2022.2047156. Online ahead of print.

ABSTRACT

OBJECTIVE: In surgical correction of frontoethmoidal encephalocele with transcranial approach, advanced facilities are required. While with extracranial approach, though deemed as a safe option in area with limited facilities, procedure was associated with cerebrospinal fluid (CSF) leakage. In this case series, we evaluate the results of transcele reconstruction of frontoethmoidal encephalocele, our approach to reduce the incidence of CSF leaks by focusing on the closure of layers by its embryological derivatives, by its bone fusion.

METHODS: A case series of 14 patients with various types of frontoethmoidal encephalocele who underwent surgery for defect closure using transcele approach between June 2015 and December 2018 was carried out. Surgery was done by a single surgeon in the Department of Neurosurgery of Cipto Mangunkusumo Hospital in Jakarta, Indonesia. We collected the data of intraoperative blood loss and any signs of infection and CSF leak during the patients' one-year follow up. Bone fusion in the defect was evaluated from 3D rendering of head CT scan that was performed before and in 1 year after surgery.

RESULTS: The median percentage of intraoperative blood loss was 5.9% (0.5-18.7%). All 3D rendering of head CT post-surgery during 1 year follow up showed bone fusion and no patient experienced CSF leaks or CNS infections.

CONCLUSIONS: This study showed that using transcele approach in frontoethmoidal reconstruction could give good bone fusion with minimal blood loss and no CSF leaks. We assumed that closure of the layers by its embryological derivative played an important part in bone fusion and in reducing the incidence of CSF leaks, although this finding has to be validated with large-scale studies.

PMID:35254175 | DOI:10.1080/02688697.2022.2047156

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