超前镇痛对VATS肺叶切除患者阿片类药物使用的影响

目的:探讨术前应用对乙酰氨基酚和加巴喷丁对电视辅助胸腔镜肺叶切除患者术后阿片类药物使用、恶心呕吐的影响。方法:收集2016年1月至2018年12月因非小细胞肺癌就诊于我科行电视辅助胸腔镜肺叶切除的患者,收集患者临床资料包括年龄、性别、BMI、合并症、美国麻醉医师协会麻醉分级、肿瘤分级、肿瘤部位、手术时间,术中和术后阿片类药物使用情况、术后止吐药使用情况,阿片类药物使用均换算为口服吗啡当量,根据术前是否采用对乙酰氨基酚和加巴喷丁超前镇痛方案将患者分为两组,比较两组患者术前基本情况及术中术后阿片类药物使用情况,分析对乙酰氨基酚和加巴喷丁超前镇痛方案对阿片类药物使用情况的影响。结果:共有241例患者纳入研究,有78例患者术前采用对乙酰氨基酚和加巴喷丁超前镇痛方案,163例患者没有采用该镇痛方案,超前镇痛组患者术中及术后阿片类药物使用剂量、术后24小时呕吐次数、术后止吐药使用剂量均低于没有采用超前镇痛方案的患者,两组患者术后NSAIDs使用和镇静状态没有统计学差异。结论:术前采用对乙酰氨基酚和加巴喷丁超前镇痛方案可减少行电视辅助胸腔镜肺叶切除患者术中及术后阿片类药物使用剂量,降低术后恶心呕吐的发生。     

Intrathecal Morphine Use in Adolescent Idiopathic Scoliosis Surgery is Associated with Decreased Opioid Use and Decreased Length of Stay

BackgroundLength of stay (LOS) in the hospital following posterior spinal fusion (PSF) for adolescent idiopathic scoliosis (AIS) has decreased over the past decade due to well-defined postoperative clinical pathways, earlier mobilization, and improved pain control methods. Historically, liberal use of parenteral and oral opioids for pain control caused side effects, resulting in delayed discharge. Intraoperative intrathecal morphine (ITM) has been posited to reduce the need for postoperative opioids and to expedite the discharge process. This study examines the relationship between the use of ITM with average required postoperative opioid usage and with average LOS.MethodsThis IRB-approved retrospective cohort study examined 105 patients with AIS who received PSF with instrumentation split into two cohorts. One cohort underwent PSF via standard surgical protocol (n=40) while the other cohort received intraoperative ITM with the standard surgical protocol (n=65). Power analysis demonstrated a study power of 0.8. LOS and total postoperative opioid analgesic medication (morphine milligram equivalent, MME) data were collected. Age at surgery, gender, number of spinal levels fused, estimated intraoperative blood loss (EBL), preoperative Cobb angle, and any complications related to the use of ITM were also recorded. Continuous variables were analyzed with Student’s t-test and categorical variables were analyzed with chi-square independent-sample tests using SAS 9.4 (α = 0.05).ResultsPatients who were treated with ITM displayed shorter LOS (p<0.0001) and reduced postoperative analgesic requirement (p<0.0001). Patients who received ITM spent an average of 1.8 fewer midnights in the hospital and received an average of 221.2 MME less than patients who received standard protocol (57% decrease). There were no significant differences between the two groups for any other variable.ConclusionIntraoperative ITM is a simple and effective treatment for scoliosis surgeons to better control postoperative pain in patients, reduce the risk of dependency, and achieve earlier discharge from the hospital. Shortened LOS reduces the overall cost of care, benefitting patients, hospitals, and insurance companies. Based on the results of this study and several earlier studies, the authors recommended that scoliosis surgeons consider incorporating use of ITM into their standard operative protocols. Level of Evidence: IV     

Resiliencia en cuidadores de personas con demencia: estudio preliminar

Introduction

Caring for a relative with dementia often has negative effects on the caregive?s physical and psychological health. However, many caregivers successfully cope with the stress factors arising from care, and even have uplifts during their experience, showing high resilience levels. This study presents a preliminary analysis of resilience in caregivers of patients with dementia, exploring its relationship with different variables.

Material and methods

Resilience was assessed (by CD-RISC) in 53 family caregivers of patients with dementia. Resilience was correlated to the following variables: caregiving context, stressors (e.g., cognitive impairment), appraisals (e.g., burden), moderators (e.g., personality traits and resources), and caregiving consequences (physical and psychological health).

Results

The participants showed moderate scores on resilience. Resilience was associated with poor emotional and physical status (significant inverse correlations with anxiety, depression, psycho-active drug use, health habits…). High resilience scores were significantly correlated to burden, neuroticism and extraversion, self-efficacy, self-esteem and less use of emotion focused coping strategies.

Conclusions

Higher resilience relates to a good emotional and physical status in caregivers. Moreover, resilience is more associated with caregiver variables (e.g., appraisal and coping with care, personality features), than to situational variables. The data highlight the strengthening of these types of appraisal and coping as a way to improve caregivers’ resilience and, consequently, their health.     

Association of Opioids and Sedatives with Increased Risk of In-Hospital Cardiopulmonary Arrest from an Administrative Database

Background

While opioid use confers a known risk for respiratory depression, the incremental risk of in-hospital cardiopulmonary arrest, respiratory arrest, or cardiopulmonary resuscitation (CPRA) has not been studied. Our aim was to investigate the prevalence, outcomes, and risk profile of in-hospital CPRA for patients receiving opioids and medications with central nervous system sedating side effects (sedatives).

Methods

A retrospective analysis of adult inpatient discharges from 2008–2012 reported in the Premier Database. Patients were grouped into four mutually exclusive categories: (1) opioids and sedatives, (2) opioids only, (3) sedatives only, and (4) neither opioids nor sedatives.

Results

Among 21,276,691 inpatient discharges, 53% received opioids with or without sedatives. A total of 96,554 patients suffered CPRA (0.92 per 1000 hospital bed-days). Patients who received opioids and sedatives had an adjusted odds ratio for CPRA of 3.47 (95% CI: 3.40–3.54; p<0.0001) compared with patients not receiving opioids or sedatives. Opioids alone and sedatives alone were associated with a 1.81-fold and a 1.82-fold (p<0.0001 for both) increase in the odds of CPRA, respectively. In opioid patients, locations of CPRA were intensive care (54%), general care floor (25%), and stepdown units (15%). Only 42% of patients survived CPRA and only 22% were discharged home. Opioid patients with CPRA had mean increased hospital lengths of stay of 7.57 days and mean increased total hospital costs of $27,569.

Conclusions

Opioids and sedatives are independent and additive risk factors for in-hospital CPRA. The impact of opioid sparing analgesia, reduced sedative use, and better monitoring on CPRA incidence deserves further study.     

术前糖化血红蛋白水平与老年髋关节置换术后谵妄的关系研究

摘要 目的：探讨术前糖化血红蛋白（HbAlc）水平与老年髋关节置换术后谵妄的关系,并分析术后发生谵妄的影响因素。方法：选择我院于2019年4月~2020年6月期间收治的行髋关节置换术的220例老年患者作为研究对象。收集患者临床资料,记录其术后发生谵妄情况。采用单因素及多因素Logistic回归分析术后发生谵妄的影响因素。采用Pearson相关分析评估患者术前HbAlc水平与术后意识障碍评估量表（CAM）评分的相关性。结果：220例患者根据剔除标准剔除20例,最终200例老年髋关节置换术后患者出现谵妄42例,发生率为21.00%（42/200）。将发生谵妄的患者纳为谵妄组（n=42）,未发生谵妄的患者纳为非谵妄组（n=158）。谵妄组的术前HbAlc水平、术后CAM评分均高于非谵妄组（P<0.05）。Pearson相关分析显示,患者术前HbAlc水平与术后CAM评分呈正相关（P<0.05）。单因素分析结果显示,老年髋关节置换术后发生谵妄与年龄、术前合并呼吸系统性疾病、手术时间、发生低氧血症、术后疼痛评分、存在电解质紊乱有关（P<0.05）,多因素Logistic回归分析结果显示,年龄>80岁、发生低氧血症、术后疼痛评分＞3分、术前HbAlc水平＞8%均是老年髋关节置换术后发生谵妄的危险因素（P<0.05）。结论：高龄、术前HbAlc水平较高的患者是髋关节置换术后发生谵妄的高危人群,且围术期应尽量给予减少疼痛、预防术后低氧血症的措施,以降低术后谵妄的发生风险。     

Relationship between Resilience,Psychological Distress and Physical Activity in Cancer Patients: A Cross-Sectional Observation Study

ObjectivePsychological distress remains a major challenge in cancer care. The complexity of psychological symptoms in cancer patients requires multifaceted symptom management tailored to individual patient characteristics and active patient involvement. We assessed the relationship between resilience, psychological distress and physical activity in cancer patients to elucidate potential moderators of the identified relationships.MethodA cross-sectional observational study to assess the prevalence of symptoms and supportive care needs of oncology patients undergoing chemotherapy, radiotherapy or chemo-radiation therapy in a tertiary oncology service. Resilience was assessed using the 10-item Connor-Davidson Resilience Scale (CD-RISC 10), social support was evaluated using the 12-item Multidimensional Scale of Perceived Social Support (MSPSS) and both psychological distress and activity level were measured using corresponding subscales of the Rotterdam Symptom Checklist (RSCL). Socio-demographic and medical data were extracted from patient medical records. Correlation analyses were performed and structural equation modeling was employed to assess the associations between resilience, psychological distress and activity level as well as selected socio-demographic variables.ResultsData from 343 patients were included in the analysis. Our revised model demonstrated an acceptable fit to the data (χ²(163) = 313.76, p = .000, comparative fit index (CFI) = .942, Tucker-Lewis index (TLI) = .923, root mean square error of approximation (RMSEA) = .053, 90% CI [.044.062]). Resilience was negatively associated with psychological distress (β = -.59), and positively associated with activity level (β = .20). The relationship between resilience and psychological distress was moderated by age (β = -0.33) but not social support (β = .10, p = .12).ConclusionCancer patients with higher resilience, particularly older patients, experience lower psychological distress. Patients with higher resilience are physically more active. Evaluating levels of resilience in cancer patients then tailoring targeted interventions to facilitate resilience may help improve the effectiveness of psychological symptom management interventions.     

Managing postoperative pain in adult outpatients: a systematic review and meta-analysis comparing codeine with NSAIDs

BACKGROUND:Analgesics that contain codeine are commonly prescribed for postoperative pain, but it is unclear how they compare with nonopioid alternatives. We sought to compare the effectiveness of codeine and nonsteroidal anti-inflammatory drugs (NSAIDs) for adults who underwent outpatient surgery.METHODS:We conducted a systematic review and meta-analysis of randomized controlled trials comparing codeine and NSAIDs for postoperative pain in outpatient surgery. We searched MEDLINE and Embase from inception to October 2019 for eligible studies. Our primary outcome was the patient pain score, converted to a standard 10-point intensity scale. Our secondary outcomes were patient-reported global assessments and adverse effects. We used random-effects models and grading of recommendations assessment, development and evaluation (GRADE) to assess the quality of evidence.RESULTS:Forty studies, including 102 trial arms and 5116 patients, met inclusion criteria. The studies had low risk of bias and low-to-moderate heterogeneity. Compared with codeine, NSAIDs were associated with better pain scores at 6 hours (weighted mean difference [WMD] 0.93 points, 95% confidence interval [CI] 0.71 to 1.15) and at 12 hours (WMD 0.79, 95% CI 0.38 to 1.19). Stronger NSAID superiority at 6 hours was observed among trials where acetaminophen was coadministered at equivalent doses between groups (WMD 1.18, 95% CI 0.87 to 1.48). NSAIDs were associated with better global assessments at 6 hours (WMD −0.88, 95% CI −1.04 to −0.72) and at 24 hours (WMD −0.67, 95% CI −0.95 to −0.40), and were associated with fewer adverse effects, including bleeding events.INTERPRETATION:We found that adult outpatients report better pain scores, better global assessments and fewer adverse effects when their postoperative pain is treated with NSAIDs than with codeine. Clinicians across all specialties can use this information to improve both pain management and opioid stewardship.

Outpatient surgical procedures are now more common than inpatient procedures, given the development of less invasive techniques, the drive for health care efficiency, and improvements in anesthesia and pain management. ^1–4 Postoperative pain management after outpatient procedures often includes low-potency or low-dose opioids.⁵ Codeine use is widespread in this setting and codeine remains the most commonly prescribed opioid in many countries, including Canada.^6–9 However, its efficacy is variable, its potency is low and its use is associated with risks of severe adverse effects and misuse.¹⁰ Amid the ongoing opioid crisis, management of pain and potential opioid misuse is important across all medical and dental specialties.¹¹Nonsteroidal anti-inflammatory drugs (NSAIDs) are an alternative to low-potency opioids. The potency, effects and toxicity of NSAIDs depend on the degree to which they inhibit cyclooxygenase 1 and 2 activity. Their main adverse effects are gastrointestinal bleeding, renal impairment and myocardial infarction with long-term use.^12–15 Postoperative pain can be effectively managed with NSAIDs, and NSAIDs have been shown to reduce opioid consumption in postoperative patients.¹⁶Given how commonly these medications are used, and the uncertainty in their comparative efficacy and safety, we sought to compare pain and safety outcomes for codeine-based medications and NSAIDs among adults who underwent outpatient surgery through a systematic review and meta-analysis of randomized controlled trials (RCTs).     

股神经阻滞麻醉联合局部浸润麻醉在老年髋关节置换手术中的应用

目的:探究股神经阻滞麻醉联合伤口局部浸润麻醉对老年髋关节置换术后疼痛程度的影响。方法:选择2016年1月~2018年6月我院收治的髋关节置换术的85例患者,据患者入院的编号的奇偶随机分为两组。对照组的42例采用伤口浸润麻醉方法,观察组的43例采用股神经阻滞麻醉联合伤口浸润麻醉方法。比较两组的麻醉效果、镇痛效果、术后阿片类药物的使用情况、住院时间及下床活动时间。结果:观察组感觉阻滞时间、恢复痛觉时间均显著长于对照组(P<0.05),术后12 h的视觉模拟评分法(Visual analog scales,VAS)评分较对照组明显降低(P<0.05),但两组术后6 h和1 d的VAS评分无统计学差异(P>0.05);观察组术后1 d的阿片类药物使用剂量较对照组明显降低(P<0.05),但两组术后2 d的阿片类药物使用剂量比较无统计学差异(P>0.05),观察组住院时间及下床活动时间较对照组明显缩短(P<0.05)。结论:股神经阻滞联合伤口浸润麻醉对于进行髋关节置换术的老年患者具有较好的镇痛效果,且在手术后阿片类镇痛药物的使用剂量减少,住院时间和下床活动时间均有所改善。     

Indicators of vulnerability associated with less healthy circadian rhythms in undergraduate medical interns

ABSTRACT

To evaluate the association between circadian health parameters and psychological and biological vulnerability, a cross-sectional study was conducted with 15 undergraduate medical interns using the Brief Resilience Scale, the Mini International Neuropsychiatric Interview, and an ambulatory circadian monitoring device. Circadian Health construct was confirmed by factor analysis. Vulnerability factors (history of depression and low resilience) were associated to lower circadian health of motor activity and temperature rhythms. The findings suggest that not only being depressed but also having had depressive episodes in the past, as well as having low resilience, are associated with chronodisruption, and may increase the risk for developing new episodes of depression.     

术前心理沟通疏导对人工膝关节置换术患者应激反应、心理状态及术后疼痛的影响

目的:分析术前心理沟通疏导对人工膝关节置换术患者应激反应、心理状态以及术后疼痛的影响。方法:选取2018年1月～2019年1月汕头大学医学院第一附属医院和南方医科大学附属东莞市人民医院收治的拟行人工膝关节置换术的患者89例,以随机数字表法分为术前干预组和常规手术组,常规手术组按常规行术前患者教育,术前干预组行术前心理沟通疏导,比较两组术后康复情况、应激反应,采用抑郁自评量表(SDS)评分、焦虑自评量表(SAS)评分、视觉模拟评分(VAS)以及简化的McGill问卷(SF-MPQ)评价患者的抑郁、焦虑、疼痛情况。结果:术前干预组术后2周膝关节活动度(ROM)、膝关节特种外科医院(HSS)评分高于常规手术组(P0.05);术前干预组术后即刻醛固酮(ALD)、血管紧张素Ⅱ(AngⅡ)、去甲肾上腺素(NE)水平低于常规手术组(P0.05);术前干预组出院时SDS评分、SAS评分低于常规手术组(P0.05);术前干预组术后VAS评分、SF-MPQ评分低于常规手术组(P0.05)。结论:术前心理沟通疏导能够明显减轻接受人工膝关节置换术治疗的患者的应激反应,改善不良情绪,减轻术后疼痛感,促进患者康复。     

肝癌术后患者心理弹性水平调查及与生存质量、应对方式和创伤后成长的相关性分析

摘要 目的：调查肝癌术后患者心理弹性水平现状,并探讨其与生存质量、应对方式和创伤后成长的相关性。方法：选取2018年11月-2021年3月我院收治的120例原发性肝癌术后住院患者,采用中文版Conner-Davidson心理弹性量表（CD-RICS）对患者心理弹性水平进行调查,另分别采用肝癌患者生活质量测定量表（QOL-LC）、医学应对方式问卷（MCMQ）、创伤后成长评定量表（PTGI）对患者进行问卷调查。采用Spearman法分析原发性肝癌术后患者心理弹性水平与生存质量、应对方式和创伤后成长的相关性。结果：肝癌术后患者心理弹性总分、乐观、自强、坚韧各维度评分均明显低于中国常模得分（P<0.05）;肝癌术后患者各生存质量维度评分均明显低于中国常模得分（P<0.05）;肝癌术后患者面对应对方式得分较中国常模得分低,回避和屈服应对方式得分较中国常模得分高（P<0.05）;肝癌术后患者创伤后成长总分、各维度评分均明显低于中国常模得分（P<0.05）。肝癌术后患者心理弹性总分与各生存质量维度得分呈正相关（P<0.05）。肝癌术后患者心理弹性总分与回避、屈服应对方式呈负相关,与面对应对方式得分呈正相关（P<0.05）。肝癌术后患者心理弹性总分与创伤后成长总分、各维度得分均呈正相关（P<0.05）。结论：肝癌术后患者具有较低的心理弹性水平,心理弹性水平与积极应对方式、生存质量和创伤后成长呈正相关,应采取针对性措施提高肝癌术后患者心理弹性水平,促进患者术后康复。     

托烷司琼与帕洛诺司琼用于小儿骨科术后镇痛预防恶心呕吐的效果研究

摘要 目的：比较托烷司琼与帕洛诺司琼用于小儿骨科术后镇痛时预防恶心呕吐的效果。方法：纳入2019年3月到2021年3月在我院进行骨科手术的儿童60例,根据术后镇痛泵中使用止吐药物的不同分为托烷司琼组和帕洛诺司琼组,每组30例,比较两组患儿术前、术后的心率（HR）、平均动脉压（MAP）,在术后48小时内,观察两组患儿恶心呕吐、头晕头痛、皮肤瘙痒以及呼吸抑制等术后并发症。视觉模拟评分法（VAS）评估患儿术后疼痛,Ramsay量表评估患儿术后镇静效果。结果：托烷司琼和帕洛诺司琼组患儿在术前和术后HR和MAP比较均无显著差异（P>0.05）;托烷司琼组和帕洛诺司琼组患儿术后VAS评分、Ramsay评分均随时间延长而降低,且同一时间点两组患儿VAS评分无显著差异（P>0.05）;帕洛诺司琼组术后PONV发生率（20.00 %）高于托烷司琼组（3.33 %）（P<0.05）。帕洛诺司琼组和托烷司琼组患儿出现头晕头痛、皮肤瘙痒以及呼吸抑制例数分别为3/2例、1/0例和1/0例。两组间术后并发症发生率比较无差异（P>0.05）。结论：托烷司琼与帕洛诺司琼对骨科手术后儿童血流动力学、疼痛和镇静效果并无差异,但在预防术后恶心呕吐方面托烷司琼效果优于帕洛诺司琼。     

Concurrent use of prescription gabapentinoids with opioids and risk for fall-related injury among older US Medicare beneficiaries with chronic noncancer pain: A population-based cohort study

BackgroundGabapentinoids are increasingly prescribed to manage chronic noncancer pain (CNCP) in older adults. When used concurrently with opioids, gabapentinoids may potentiate central nervous system (CNS) depression and increase the risks for fall. We aimed to investigate whether concurrent use of gabapentinoids with opioids compared with use of opioids alone is associated with an increased risk of fall-related injury among older adults with CNCP.Methods and findingsWe conducted a population-based cohort study using a 5% national sample of Medicare beneficiaries in the United States between 2011 and 2018. Study sample consisted of fee-for-service (FFS) beneficiaries aged ≥65 years with CNCP diagnosis who initiated opioids. We identified concurrent users with gabapentinoids and opioids days’ supply overlapping for ≥1 day and designated first day of concurrency as the index date. We created 2 cohorts based on whether concurrent users initiated gabapentinoids on the day of opioid initiation (Cohort 1) or after opioid initiation (Cohort 2). Each concurrent user was matched to up to 4 opioid-only users on opioid initiation date and index date using risk set sampling. We followed patients from index date to first fall-related injury event ascertained using a validated claims-based algorithm, treatment discontinuation or switching, death, Medicare disenrollment, hospitalization or nursing home admission, or end of study, whichever occurred first. In each cohort, we used propensity score (PS) weighted Cox models to estimate the adjusted hazard ratios (aHRs) with 95% confidence intervals (CIs) of fall-related injury, adjusting for year of the index date, sociodemographics, types of chronic pain, comorbidities, frailty, polypharmacy, healthcare utilization, use of nonopioid medications, and opioid use on and before the index date. We identified 6,733 concurrent users and 27,092 matched opioid-only users in Cohort 1 and 5,709 concurrent users and 22,388 matched opioid-only users in Cohort 2. The incidence rate of fall-related injury was 24.5 per 100 person-years during follow-up (median, 9 days; interquartile range [IQR], 5 to 18 days) in Cohort 1 and was 18.0 per 100 person-years during follow-up (median, 9 days; IQR, 4 to 22 days) in Cohort 2. Concurrent users had similar risk of fall-related injury as opioid-only users in Cohort 1(aHR = 0.97, 95% CI 0.71 to 1.34, p = 0.874), but had higher risk for fall-related injury than opioid-only users in Cohort 2 (aHR = 1.69, 95% CI 1.17 to 2.44, p = 0.005). Limitations of this study included confounding due to unmeasured factors, unavailable information on gabapentinoids’ indication, potential misclassification, and limited generalizability beyond older adults insured by Medicare FFS program.ConclusionsIn this sample of older Medicare beneficiaries with CNCP, initiating gabapentinoids and opioids simultaneously compared with initiating opioids only was not significantly associated with risk for fall-related injury. However, addition of gabapentinoids to an existing opioid regimen was associated with increased risks for fall. Mechanisms for the observed excess risk, whether pharmacological or because of channeling of combination therapy to high-risk patients, require further investigation. Clinicians should consider the risk–benefit of combination therapy when prescribing gabapentinoids concurrently with opioids.

In a cohort study, Cheng Chen and colleagues investigate associations between concurrent use of gabapentinoids and opioids and risk of fall-related injury, compared with use of opioids alone, among adults aged 65 years or older with chronic noncancer pain in the United States.     

Chronic Intermittent Hypoxia Is Independently Associated with Reduced Postoperative Opioid Consumption in Bariatric Patients Suffering from Sleep-Disordered Breathing

BackgroundEvidence suggests that recurrent nocturnal hypoxemia may affect pain response and/or the sensitivity to opioid analgesia. We tested the hypothesis that nocturnal hypoxemia, quantified by sleep time spent at an arterial saturation (SaO₂) < 90% and minimum nocturnal SaO₂ on polysomnography, are associated with decreased pain and reduced opioid consumption during the initial 72 postoperative hours in patients having laparoscopic bariatric surgery.MethodsWith Institutional Review Board approval, we examined the records of all patients who underwent laparoscopic bariatric surgery between 2004 and 2010 and had an available nocturnal polysomnography study. We assessed the relationships between the time-weighted average of pain score and total opioid consumption during the initial 72 postoperative hours, and: (a) the percentage of total sleep time spent at SaO₂ < 90%, (b) the minimum nocturnal SaO₂, and (c) the number of apnea/hypopnea episodes per hour of sleep. We used multivariable regression models to adjust for both clinical and sleep-related confounders.ResultsTwo hundred eighteen patients were included in the analysis. Percentage of total sleep time spent at SaO₂ < 90% was inversely associated with total postoperative opioid consumption; a 5-%- absolute increase in the former would relatively decrease median opioid consumption by 16% (98.75% CI: 2% to 28%, P = 0.006). However, the percentage of total sleep time spent at SaO₂ < 90% was not associated with pain. The minimum nocturnal SaO₂ was associated neither with total postoperative opioid consumption nor with pain. In addition, neither pain nor total opioid consumption was significantly associated with the number of apnea/hypopnea episodes per hour of sleep.ConclusionsPreoperative nocturnal intermittent hypoxia may enhance sensitivity to opioids.     

Insulin Requirements in Patients With Type 2 Diabetes Undergoing Bariatric Surgery in the Inpatient Setting and Upon Discharge: A Single-Center Retrospective Analysis of Insulin Management Strategies

ObjectiveRapid improvement in blood glucose (BG) after weight-loss surgery (WLS) can make postoperative glucose management challenging in patients with type 2 diabetes mellitus (T2DM). Our study examined the safety and efficacy of insulin management strategies during hospitalization and after discharge following WLS.MethodsThis single-center retrospective cohort study included 160 adult patients with type 2 diabetes mellitus undergoing WLS. Patients with glycated hemoglobin A1C (HbA1C) level <7% (53 mmol/mol) and not on antihyperglycemic medications or metformin monotherapy were excluded. BG and insulin dosing during hospitalization and at 2-week follow-up, and impact of preoperative HbA1C level were analyzed.ResultsMean age was 46.3 years. Median preoperative HbA1C level was 8% (64 mmol/mol). Postoperatively, most patients received basal insulin plus sliding-scale insulin (SSI; 79/160, 49%) or SSI alone (77/160, 48%). The initial postoperative basal dose was 0.23 units/kg/day. The median basal insulin dose at discharge was 61% lower than preoperative dose. At 2-week follow-up, 34 of 44 patients (77%) had BG levels between 70-200 mg/dL and 1 of 44 (2.2%) had BG levels >200 mg/dL, with no hypoglycemia. Patients with HbA1C level >9% (75 mmol/mol) had higher BG on admission and during hospitalization, required higher insulin doses while hospitalized, and were more frequently discharged on insulin.ConclusionSSI is effective in managing BG in some patients immediately after WLS. However, about half of the patients may require basal insulin at doses similar to those required by other inpatients. Preoperative hyperglycemia may affect inpatient insulin needs and BG. Low-dose basal insulin appears safe and effective upon discharge for select patients.