<?xml version="1.0" encoding="utf-8"?>
<recommendedContent xmlns="http://api.mspoke.com">
    <recommendedItem id="20100101_19_463"
                     title="AAPM: Online Program Helps Manage Pain (CME/CE)"
                     score="0.013"
                     href="http://www.medpagetoday.com/MeetingCoverage/AAPM/tb/18393?impressionId=1265746870099"
                     
      &lt;p&gt;SAN ANTONIO  --  A personalized, online self-management program helped patients with pain syndromes improve coping skills and reduce stress and depression in two studies reported here.&lt;/p&gt;
&lt;p&gt;Patients randomized to the self-management program demonstrated significant improvement in multiple social, emotional, and behavioral outcomes after six months (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.05 to &lt;em&gt;P&lt;/em&gt;&amp;lt;0.01). Improvement in some parameters occurred within one month. A control group that was not exposed to the program showed no significant improvement.&lt;/p&gt;
&lt;p&gt;&quot;Our goal is to help people communicate better with providers, understand better how they can use social support, understand the comorbid conditions, like anxiety and depression, and develop cognitive skills to help get them through their pain episodes,&quot; said Emil Chiauzzi, PhD, of Inflexxion, the Newton, Mass. company that developed the program.&lt;/p&gt;
&lt;p&gt;Although the studies involved patients with migraine or low-back pain, programs are being developed for other types of pain condition, including several forms of neuropathic pain.&lt;/p&gt;
&lt;p&gt;The online program, demonstrated at &lt;a href=&quot;http://www.painACTION.com&quot; mce_href=&quot;http://www.painACTION.com&quot; target=&quot;_blank&quot;&gt;www.painACTION.com&lt;/a&gt;, employs patient-specific information to generate individualized self-management strategies.&lt;/p&gt;
&lt;p&gt;Patient responses to assessments are analyzed by a &quot;recommendation engine,&quot; which produces content recommendations designed to address each patient&apos;s informational and self-management needs.&lt;/p&gt;
&lt;p&gt;Elements on the Web site include multimedia education units, a pain inventory, interactive tools that provide information based on patient-provider communication, and medication risk management.&lt;/p&gt;
&lt;p&gt;&quot;The content on the Web site is focused on teaching people practical skills to manage the behavioral side of pain,&quot; Jonas Bromberg, PsyD, also of Inflexxion, said in an interview.&lt;/p&gt;
&lt;p&gt;Bromberg presented results of a randomized study involving 210 patients, all of whom met International Headache Society diagnostic criteria for migraine, with or without aura.&lt;/p&gt;
&lt;p&gt;Patients assigned to the online program completed at least eight 30-minute session during the first month of the study and at least five more 30-minute sessions during the five-month follow-up period. Patients in the control group continued to receive usual care without exposure to the Web site.&lt;/p&gt;
&lt;p&gt;Participants assigned to the online program had a minimum set of requirements for each session, which were provided at log-in. Follow-up assessments occurred at one, three, and six months.&lt;/p&gt;
&lt;p&gt;The two groups were balanced with respect to sex and headache frequency and severity, the researchers said.&lt;/p&gt;
&lt;p&gt;Bromberg reported that patients assigned to the self-management program demonstrated significant improvement in: &lt;ul&gt; &lt;li&gt;Headache self-efficacy (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.01 compared with baseline)&lt;/li&gt; &lt;li&gt;Use of relaxation (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.05 to &lt;em&gt;P&lt;/em&gt;&amp;lt;0.01)&lt;/li&gt; &lt;li&gt;Use of social support (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.01)&lt;/li&gt; &lt;li&gt;Pain catastrophizing (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.01)&lt;/li&gt; &lt;li&gt;Depression (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.05 to &lt;em&gt;P&lt;/em&gt;&amp;lt;0.01)&lt;/li&gt; &lt;li&gt;Stress (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.01)&lt;/li&gt; &lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;Chiauzzi presented results from a randomized study of 209 patients with low-back pain. The design was similar to that of the migraine study, except results were analyzed for between-group differences.&lt;/p&gt;
&lt;p&gt;The results showed significant improvement in the study group versus control group with respect to: &lt;ul&gt; &lt;li&gt;Stress (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.01)&lt;/li&gt; &lt;li&gt;Coping (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.01)&lt;/li&gt; &lt;li&gt;Social supports (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.05)&lt;/li&gt; &lt;/ul&gt;&lt;/p&gt;
&lt;p&gt;The data showed significant effects of both treatment (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.01) and time (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.01) favoring the Web site versus control. Chiauzzi said patients assigned to the Web site had greater mean improvement at posttest, three months, and six months.&lt;/p&gt;
&lt;p&gt;Qualitative analysis suggested that Web site participants had clinically meaningful improvement in depression, anxiety, and stress.&lt;/p&gt;
&lt;p&gt;Additionally, patients in the self-management program reported a 12.3% decrease in pain from baseline, versus 7% in the control group.&lt;/p&gt;
&lt;p&gt;Access to the Web site did not improve physical functioning.&lt;/p&gt;
&lt;div style=&quot;float:left;border-style:solid;border-width:1px;border-color:#8dabbc;font-family:arial;font-size:12px;background-color:#DBE9F2;padding:5px;&quot;&gt;&lt;p&gt;The studies were funded by the National Institutes of Health.&lt;/p&gt;&lt;p&gt;Chiauzzi and Bromberg are employees of Inflexxion, developer of the online program.&lt;/p&gt;&lt;/div&gt;&lt;div style=&quot;clear:both;&quot;&gt;&lt;/div&gt;
    </recommendedItem>
    <recommendedItem id="20100101_19_434"
                     title="AAPM: Capsaicin Patch Unaffected by Anesthestics (CME/CE)"
                     score="0.012"
                     href="http://www.medpagetoday.com/MeetingCoverage/AAPM/tb/18351?impressionId=1265746870099"
                     
      &lt;p&gt;SAN ANTONIO  --  The analgesic properties of a capsaicin patch (NGX-4010, Qutenza) remained intact when used in combination with three different topical anesthetics to reduce initial skin discomfort, researchers reported here.&lt;/p&gt;
&lt;p&gt;Pain reduction among patients with neuropathic pain conditions averaged about 30% during weeks two through 12 compared with baseline levels and did not differ by the the type of lidocaine-based pretreatment.&lt;/p&gt;
&lt;p&gt;Between 45% and 50% of patients in each group had at least a 30% decrease in pain.&lt;/p&gt;
&lt;p&gt;&quot;No significant differences in tolerability were noted among the three topical anesthetics evaluated,&quot; Lynn R. Webster, MD, of Lifetree Clinical Research in Salt Lake City, and colleagues concluded in a poster presentation at the American Academy of Pain Medicine meeting.&lt;/p&gt;
&lt;p&gt;&quot;Preliminary efficacy of NGX-4010 was similar, irrespective of the topical anesthetic and comparable to results in previous phase III studies using NGX-4010 in patients with postherpetic neuralgia.&quot;&lt;/p&gt;
&lt;p&gt;The 8% capsaicin patch has FDA approval for management of postherpetic neuralgia. Prior to applying the patch, the skin is treated with a topical anesthetic to reduce discomfort. In previous studies of NGX-4010, a 4% lidocaine cream (LMX4) had been applied prior to the patch.&lt;/p&gt;
&lt;p&gt;Whether the type of anesthetic pretreatment affected the safety and efficacy of NGX-4010 was unclear. To address the issue, investigators conducted a randomized, multicenter, open-label clinical study involving 117 patients with moderate-to-severe postherpetic neuralgia, HIV-distal sensor polyneuropathy, or peripheral diabetic neuropathy.&lt;/p&gt;
&lt;p&gt;The patients were randomized to a 60-minute pretreatment period with one of three 4% lidocaine-based topical anesthetics (LMX4, Topicaine, or Betacaine). Within each anesthetic group, patients were further randomized to a 60- or 90-minute application of NGX-4010.&lt;/p&gt;
&lt;p&gt;Safety and tolerability assessments included adverse events, skin assessments by a 7-point scoring system, pain score on the day of treatment, and use of medication for treatment-related discomfort.&lt;/p&gt;
&lt;p&gt;The principal efficacy outcome was the percentage change in mean pain scores (reflecting average pain for the past 24 hours) from baseline to weeks two through 12.&lt;/p&gt;
&lt;p&gt;Men accounted for about 60% of the study population, and three-fourths of the patients had peripheral diabetic neuropathy. Duration of pain averaged four to five years. The baseline pain level averaged 5 to 6 (moderate) on the 0-10 pain scale.&lt;/p&gt;
&lt;p&gt;In all three groups, the pain level increased slightly or not at all, following application of the capsaicin patch. In general, patients treated for 90 minutes reported more pain than those treated for 60 minutes, but the difference was not statistically significant.&lt;/p&gt;
&lt;p&gt;Within the first 48 hours, 70% to 75% of patients in each group reported &amp;#8805;33% increase in pain.&lt;/p&gt;
&lt;p&gt;More than half the patients in each group required oral analgesics for treatment-related pain, and patients treated for 90 minutes with transdermal capsaicin were more likely to require oral analgesics than were the patients who were treated for 60 minutes.&lt;/p&gt;
&lt;p&gt;The most common adverse event in all three groups was mild to moderate burning or pain at the application site.&lt;/p&gt;
&lt;p&gt;From weeks two through 12, the average pain reduction compared with baseline ranged from 27.2% to 34.3% and did not differ significantly among the groups. About half the patients had at least a 30% reduction in pain compared with baseline.&lt;/p&gt;
&lt;p&gt;At week 12, 35% to 42% of patients in each group reported that their pain was &quot;much improved,&quot; and about 60% to 70% said their pain was &quot;improved.&quot;&lt;/p&gt;
&lt;p&gt;None of the between-group differences was statistically significant.&lt;/p&gt;
&lt;div style=&quot;float:left;border-style:solid;border-width:1px;border-color:#8dabbc;font-family:arial;font-size:12px;background-color:#DBE9F2;padding:5px;&quot;&gt;&lt;p&gt;The study was supported by NeurogesX.&lt;/p&gt;&lt;p&gt;Webster&apos;s disclosures include Ameritox, Cephalon, King Pharmaceuticals, Medtronic, Arcion Therapeutics, Advanced Bionics, CoMentis, F. Hoffman-La Roche, Forest Laboratories, Hisamitsu Pharmaceuticals, Merck, Myriad Pharmaceuticals, Nektar Therapeutics, NeurogesX, Pfizer, Wyeth, XenoPort, Nervo, Neuromed Pharmaceuticals, and Purdue Pharma.&lt;/p&gt;&lt;/div&gt;&lt;div style=&quot;clear:both;&quot;&gt;&lt;/div&gt;
    </recommendedItem>
    <recommendedItem id="20100101_19_424"
                     title="AAPM: Facet Graft Quells Refractory Back Pain (CME/CE)"
                     score="0.012"
                     href="http://www.medpagetoday.com/MeetingCoverage/AAPM/tb/18343?impressionId=1265746870099"
                     
      &lt;p&gt;SAN ANTONIO  --  Minimally invasive facet arthrodesis significantly reduced pain and improved physical function for one&lt;strong&gt; &lt;/strong&gt;year in patients with medically refractory facet arthropathy, according to data from a prospective clinical series.&lt;/p&gt;
&lt;p&gt;Most patients discontinued narcotic pain relievers, researchers reported here, and only one of 28 patients in the series had no appreciable change in pain after the noninstrumented spinal surgery.&lt;/p&gt;
&lt;p&gt;&quot;The procedure does not disrupt stabilizing ligaments or muscular structures of the posterior spine, allowing unimpeded physiotherapy for low back muscular strengthening after 16 weeks,&quot; Daniel Bennett, MD, of Integrative Treatment Centers in Denver, told attendees at the American Academy of Pain Medicine meeting.&lt;/p&gt;
&lt;p&gt;&quot;If fusion occurs, symptoms should not return, as with traditional treatment modalities, such as thermal radiofrequency neurolysis.&quot;&lt;/p&gt;
&lt;p&gt;The results have provided the foundation for a prospective, multicenter, randomized clinical trial to compare radiofrequency neurolysis and minimally invasive spine facet arthrodesis, he added.&lt;/p&gt;
&lt;p&gt;Medical management of low back pain related to facet degeneration often provides minimal pain relief and can interfere with functioning. Direct injection of anesthesia into an affected joint also leads to negligible long-term benefits, said Bennett. Radiofrequency neurolysis provides only temporary pain relief and must be repeated because of nerve regeneration.&lt;/p&gt;
&lt;p&gt;All the patients had a return of pain after previous radiofrequency neurolysis and were eligible for repeat neurolytic procedures. Affected areas were confirmed by anesthetic injection, followed by a provocatory examination.&lt;/p&gt;
&lt;p&gt;The patients underwent a standardized procedure that included a small incision at the affected area, insertion of surgical pins to stabilize the joint, use of a surgical drill to achieve joint separation, and insertion of 5-mm or 7-mm Morse tapered cortical allografts.&lt;/p&gt;
&lt;p&gt;After surgery, patients wore a rigid brace for 16 weeks, at which point they began physical therapy to strengthen back muscles.&lt;/p&gt;
&lt;p&gt;The patients received a total of 102 grafts at 51 levels, and four dislodgements (3.9%) occurred. None of the patients had a return of pain after dislodgement.&lt;/p&gt;
&lt;p&gt;&quot;Among patients who retained grafts, all showed callus formation of the posterior joint and incorporation of the cortical allograft,&quot; said Bennett.&lt;/p&gt;
&lt;p&gt;At the 52-week follow-up, the average score on a 100-point visual analog pain scale was 23, down from an average of 79 prior to the intervention. Patients&apos; scores on the Oswestry Disability Index averaged 8.32, compared with 33.46 at baseline.&lt;/p&gt;
&lt;p&gt;All but four patients discontinued narcotic medication, and the morphine dose required by those four decreased from a baseline range of 150 to 360 mg to a range of 10 to 30 mg at one year.&lt;/p&gt;
&lt;div style=&quot;float:left;border-style:solid;border-width:1px;border-color:#8dabbc;font-family:arial;font-size:12px;background-color:#DBE9F2;padding:5px;&quot;&gt;&lt;p&gt;The study was supported by Prism Healthcare Foundation.&lt;/p&gt;&lt;p&gt;Bennett disclosed relationships with Alphatec Spine, miniSURG, Boston Scientific, Cephalon, Nevro, and Paylon.&lt;/p&gt;&lt;/div&gt;&lt;div style=&quot;clear:both;&quot;&gt;&lt;/div&gt;
    </recommendedItem>
    <recommendedItem id="20100101_19_415"
                     title="AAPM: Drug for Fibromyalgia Boosts Multiple Outcomes (CME/CE)"
                     score="0.011"
                     href="http://www.medpagetoday.com/MeetingCoverage/AAPM/tb/18327?impressionId=1265746870099"
                     
      &lt;p&gt;SAN ANTONIO  --  The fibromyalgia drug milnacipran (Savella) achieved clinically meaningful reductions in pain throughout almost four months of randomized therapy, a post-hoc analysis of daily pain control showed.&lt;/p&gt;
&lt;p&gt;Half of patients treated with the serotonin/norepinephrine reuptake inhibitor had at least a 30% improvement in pain scores at 15 weeks, and 35% to 40% had at least a 50% improvement, according to analyses reported here at the American Academy of Pain Medicine meeting.&lt;/p&gt;
&lt;p&gt;Two different doses of milnacipran led to at least 30% improvement in pain on almost half of the days during the randomized trial. Patients treated with milnacipran had at least 50% improvement during 30% of the days.&lt;/p&gt;
&lt;p&gt;&quot;A 30% improvement in pain is clinically significant, and half the patients treated with milnacipran attained that level of pain relief,&quot; Aroon Datta, MD, of Forest Laboratories in Jersey City, N.J., said in an interview. &quot;Even when the more stringent criteria of 50% improvement were applied, significantly more patients in the milnacipran groups achieved that threshold compared with placebo.&quot;&lt;/p&gt;
&lt;p&gt;&quot;By any measure, it is fair to say that patients treated with milnacipran had significantly better pain control,&quot; he added.&lt;/p&gt;
&lt;p&gt;Milnacipran is chemically similar to the antidepressant venlafaxine (Effexor). However, milnacipran has three times the power to inhibit norepinephrine reuptake. The drug was approved in 2009 for treatment of fibromyalgia.&lt;/p&gt;
&lt;p&gt;Datta reported results of a post-hoc analysis of data from two randomized, placebo-controlled clinical trials. One lasted 27 weeks, and the other had a 15-week follow-up.&lt;/p&gt;
&lt;p&gt;In the 27-week trial, approximately 900 patients were randomized 1:1:2 to placebo, milnacipran 100 mg/d (50 mg BID), or milnacipran 200 mg/d (100 mg BID). In the 15-week trial, 1,200 patients were randomized in equal proportion to placebo and the two doses of milnacipran.&lt;/p&gt;
&lt;p&gt;Patients recorded their pain level several times a day by means of an electronic diary. They rated their pain according to a visual analog scale (VAS) with a range of 0 to 100.&lt;/p&gt;
&lt;p&gt;The post-hoc analysis centered on outcomes at 15 weeks in both trials. The primary outcomes were change from baseline in weekly 24-hour VAS pain score, the proportion of patients who achieved &amp;#8805;30% and &amp;#8805;50% improvement in the VAS pain score, and the proportion of days with &amp;#8805;30% and &amp;#8805;50% improvement in pain.&lt;/p&gt;
&lt;p&gt;In the longer trial, the change in the weekly average of 24-hour recall of VAS scores differed significantly in both milnacipran groups within two weeks, and the difference was maintained through 15 weeks (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.05 to &lt;em&gt;P&lt;/em&gt;&amp;lt;0.001).&lt;/p&gt;
&lt;p&gt;Significant differences emerged within the first week in the second trial and persisted through week 15 (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.05 to &lt;em&gt;P&lt;/em&gt;&amp;lt;0.001).&lt;/p&gt;
&lt;p&gt;In both trials, 52% of patients assigned to 100 mg of milnacipran and 56% of those assigned to 200 mg had &amp;#8805;30% improvement in pain scores, compared with 40% to 42% of placebo-treated patients (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.05 to &lt;em&gt;P&lt;/em&gt;&amp;lt;0.001).&lt;/p&gt;
&lt;p&gt;When the more stringent criterion of &amp;#8805;50% improvement was used, 31% to 35% of the 100-mg milnacipran patients achieved that goal, as did 36% to 37% of patients treated with 200 mg.&lt;/p&gt;
&lt;p&gt;About 25% of placebo patients had &amp;#8805;50% improvement. Only the 200-mg dose differed significantly from placebo (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.05 to &lt;em&gt;P&lt;/em&gt;&amp;lt;0.01).&lt;/p&gt;
&lt;p&gt;A similar pattern emerged in evaluation of the proportion of days with threshold pain reductions. Milnacipran-treated patients had &amp;#8805;30% improvement on 44% to 47% of days in the trial and &amp;#8805;50% improvement on 25% to 30% of days.&lt;/p&gt;
&lt;p&gt;For both thresholds, milnacipran was significantly better than placebo, whose patients had &amp;#8805;30% pain improvement on about a third of days and &amp;#8805;50% improvement on fewer than 20% of days (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.01 to &lt;em&gt;P&lt;/em&gt;&amp;lt;0.001).&lt;/p&gt;
&lt;p&gt;Datta also reported findings from a randomized, placebo-controlled clinical trial evaluating the pain relief afforded by the 100-mg daily dose of milnacipran. The study involved 1,025 patients with fibromyalgia randomized to placebo or active therapy.&lt;/p&gt;
&lt;p&gt;The trial had two principal 12-week efficacy outcomes: the composite of &amp;#8805;30% improvement in pain and the Patient Global Impression of Change (PGIC), and the composite of the same two outcomes plus improvement &amp;#8805;6 points on the physical function component of the SF-36 health assessment survey.&lt;/p&gt;
&lt;p&gt;The principal efficacy analysis used baseline observation carried forward (BOCF) for patients with missing data. By that statistical method, 29% of milnacipran patients were responders compared with 18% of the placebo group (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.001).&lt;/p&gt;
&lt;p&gt;An analysis that employed last observation carried forward (LOCF) showed response rates of 33% with milnacipran and 19&lt;strong&gt;%&lt;/strong&gt; with placebo (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.001).&lt;/p&gt;
&lt;p&gt;An analysis of observed cases resulted in response rates of 42% versus 26% (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.001).&lt;/p&gt;
&lt;p&gt;Similar results emerged from analyses of the three-measure outcome. Milnacipran led to significantly higher (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.001) response rates by BOCF (20% versus 11%), by LOCF (28% versus 12%), and by observed cases (30% versus 16%).&lt;/p&gt;
&lt;p&gt;Milnacipran therapy also led to significantly higher (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.001) response rates for each component of the composite outcomes: &amp;#8805;30% improvement in pain (45% versus 31%), PGIC (42% versus 26%), and &amp;#8805;6-point improvement in physical function (40% versus 31%).&lt;/p&gt;
&lt;p&gt;The results indicate that milnacipran 100 mg (50 mg BID) could offer an alternative for patients who cannot tolerate the FDA-approved 200-mg dose, said Datta. If physicians choose to start patients on 100 mg and then titrate up to the approved dose, that also would appear feasible, he said.&lt;/p&gt;
&lt;div style=&quot;float:left;border-style:solid;border-width:1px;border-color:#8dabbc;font-family:arial;font-size:12px;background-color:#DBE9F2;padding:5px;&quot;&gt;&lt;p&gt;The studies were supported by Forest Laboratories and Cypress Bioscience.&lt;/p&gt;&lt;p&gt;All but two of the authors are employees of the study sponsors.&lt;/p&gt;&lt;/div&gt;&lt;div style=&quot;clear:both;&quot;&gt;&lt;/div&gt;
    </recommendedItem>
    <recommendedItem id="20100101_19_346"
                     title="Daytime Sleepiness More Common in Young (CME/CE)"
                     score="0.008"
                     href="http://www.medpagetoday.com/PrimaryCare/SleepDisorders/tb/18221?impressionId=1265746870099"
                     
      &lt;p&gt;Compared with 20-somethings and seniors, middle-age adults are less likely to suffer daytime sleepiness when they don&apos;t get a good night&apos;s sleep, according to a small study.&lt;/p&gt;
&lt;p&gt;When three groups of healthy adults  --  young (20 to 30 years old), middle-age (40 to 55) and older (66 to 83)  --  were studied over four nights, slow wave sleep decreased and the number of nocturnal awakenings progressively increased with age, wrote Derk-Jan Dijk, PhD, of the Surrey Sleep Center at the University of Surrey in Guildford, England, and colleagues in the Feb. 1 issue of &lt;em&gt;Sleep.&lt;/em&gt;&lt;/p&gt;

&lt;p&gt;As the likelihood for eight hours of uninterrupted deep sleep decreased with age, there was no increase in the likelihood of daytime sleepiness, which led Dijk and colleagues to conclude that as people age there may be a change in the &quot;sleep (duration and depth) required to maintain alertness.&quot;&lt;/p&gt;
&lt;p&gt;Based on that observation, the authors wrote that it could be argued that &quot;an eight-hour episode rich in [slow wave sleep] is insufficient for young adults but that an eight-hour sleep episode with less [slow wave sleep] is sufficient for older adults.&quot;&lt;/p&gt;
&lt;p&gt;As a result, middle-age and older adults are less likely to build up &quot;sleep debt&quot; during the daylight hours, so they manage with less time in deep sleep at night, less homeostatic sleep pressure.&lt;/p&gt;
&lt;p&gt;The authors hypothesized that this apparent need for less sleep may be a factor in age-related insomnia.&lt;/p&gt;
&lt;p&gt;If older adults are unaware of the need for less sleep, &quot;their self-selected time in bed, which provides an input to the sleep homeostat, may become maladaptive and lead to reduced sleep consolidation and associated complaints.&quot;&lt;/p&gt;
&lt;p&gt;Dijk and colleagues recruited 44 young adults, 35 middle-age adults, and 31 older adults for their study. All were healthy at baseline and all were initially assessed for an eight-hour nocturnal sleep episode.&lt;/p&gt;
&lt;p&gt;They were then randomized to two nights of either selective short wave sleep interruption by acoustic stimuli or sleep without disruption, followed by one night of recovery sleep.&lt;/p&gt;
&lt;p&gt;Two standardized measurement tools, the Multiple Sleep Latency Test (MSLT) and the Karolinska Sleepiness Scale (KSS), were used to assess objective and subjective sleep propensity.&lt;/p&gt;
&lt;p&gt;&quot;Total sleep time per eight hour time in bed decreased significantly and progressively across the age groups such that older adults slept approximately 20 minutes less than middle-aged, who slept 23 minutes less than young adults,&quot; they wrote.&lt;/p&gt;
&lt;p&gt;The reduction in total sleep time &quot;was primarily related to an increase in the number of awakenings and the duration of wakefulness after sleep onset, rather than an increase in latency to sleep onset.&quot;&lt;/p&gt;
&lt;p&gt;As a result, sleep efficiency decreased significantly from 92.1% for the youngest group, to 82% for the older group (effect of age, &lt;em&gt;P&amp;lt;&lt;/em&gt;0.0001).&lt;/p&gt;
&lt;p&gt;The subjective sleep propensity tests revealed that &quot;young people were significantly sleepier than the middle-age people, who were the least sleepy of the three groups.&quot; Daytime sleepiness for the oldest group &quot;fell in between the other two groups [and] was not significantly different from either.&quot;&lt;/p&gt;
&lt;p&gt;All three groups, regardless of age, demonstrated increased daytime sleepiness following a night of experimental disruption of slow wave sleep, but when the participants had an uninterrupted eight hours of deep sleep, it was only the youngest group that was drowsy during the daytime hours.&lt;/p&gt;
&lt;p&gt;The authors noted that although there was less daytime sleepiness among middle-age and older adults in this study, sleep propensity was not measured during the evening hours, so it was possible that the age-related difference might diminish at twilight.&lt;/p&gt;
&lt;div style=&quot;float:left;border-style:solid;border-width:1px;border-color:#8dabbc;font-family:arial;font-size:12px;background-color:#DBE9F2;padding:5px;&quot;&gt;&lt;p&gt;The study was sponsored by H. Lundbeck A/S.&lt;/p&gt;&lt;p&gt;Dijk reported receiving research support from the Air Force Office of Scientific Research, the Biotechnology and Biological Sciences Research Council, GlaxoSmithKline, H. Lundbeck A/S, Merck, Pfizer, Philips Lighting, sanofi-aventis, and Takeda.&lt;/p&gt;&lt;/div&gt;&lt;div style=&quot;clear:both;&quot;&gt;&lt;/div&gt;
    </recommendedItem>
</recommendedContent>