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Query: UMLS:C0012833 (dizziness)
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AFR 35-11, dated 10 April 1985, included standards for physical fitness performance tests with the option of a 1.5-mile run or a 3-mile walk. Since that time, ANG units have begun initial physical fitness testing of all personnel. This program brought with it new responsibilities for ANG medical units including the screening of individuals in whom health problems might indicate that they are at risk in taking the physical fitness test (PFT). The 111th TAC Clinic used a questionnaire, screened by physicians utilizing a predetermined grid of responses to designate individuals cleared for the run or walk test or as at risk. Of 823 individuals screened, 91 (11%) were designated at risk. These individuals are being further evaluated and 31 (29%) have been subsequently cleared to date. Physical testing of cleared individuals was accomplished, and both running and walking courses were carefully monitored by ambulance crews. Four casualties came to medical attention (blisters, severe fatigue, dizziness, and indigestion). The patient with severe fatigue was a patient on medical hold, S/P myocardial infarction, who had not been medically cleared to participate. The patient with light-headedness was found to have newly diagnosed hypertension. In view of the relatively small number of casualties incurred during this initial PFT, it is felt that the screening process employing a questionnaire evaluated by medical personnel is an appropriate method of minimizing risk.
Mil Med 1989 Sep
PMID:Report of an Air National Guard clinic's experience with screening at-risk individuals before initial physical fitness testing. 250 60

A 23-year-old male was referred to our hospital for evaluation of new-onset seizures. Signs and symptoms of neuroglycopenia, including weakness, dizziness, and confusion, appeared during fasting and resolved promptly with intravenous dextrose administration. Insulin, proinsulin, and C-peptide levels were consistent with a diagnosis of insulinoma. Screening tests for multiple endocrine neoplasia type 1 and surreptitious sulfonylurea uses were negative. Preoperative localization of the insulinoma by transabdominal ultrasonography, computed tomography, and indium-111 octreoscanning were unsuccessful. Endoscopic ultrasonography (EUS) identified a 6- to 7-mm tumor at the juncture of the head and body of the pancreas. Surgical exploration confirmed the preoperative localization, and an 8-mm tumor was simply enucleated. The patient has been free of symptoms for 18 months since surgery. This report describes the utility of EUS to localize a solitary pancreatic insulinoma and provides a comparison of EUS and other preoperative localization techniques.
Mil Med 1998 Dec
PMID:Endoscopic ultrasound localization of a pancreatic insulinoma: case report and review of the localization techniques. 986 68

U.S. Air Force otologic patients seeking care at Wilford Hall Medical Center for tinnitus, dizziness, and/or nonotologic otalgia without an identifiable cause and presenting with temporomandibular disorder (TMD) symptoms in the temple, jaw, or preauricular area or with otalgia at least once a month were referred to a TMD specialty clinic. The patients were provided a dental orthotic and TMD self-care instructions. After 3 months of orthotic wear, the percentages of patients reporting at least moderate symptom improvement of their tinnitus, dizziness, otalgia, and/or TMD were 64, 91, 87, and 92%, respectively. Follow-up telephone calls 6 months after completion of TMD therapy revealed that all patients maintained their symptom improvements. These findings imply that TMD was affecting the patients' otologic symptoms. Patients seeking care for tinnitus, dizziness, and/or nonotologic otalgia without an identifiable cause may have TMD, and their otologic symptoms may benefit from conservative reversible TMD therapy.
Mil Med 2000 Oct
PMID:Tinnitus, dizziness, and nonotologic otalgia improvement through temporomandibular disorder therapy. 1105 Aug 68

The general public, the mass media, and many government officials believe that the use of weapons of mass destruction (WMD) will inevitably lead to mass panic and/or mass hysteria. However, studies of disasters and wars show that disorganized flight in the presence of a real or perceived danger (i.e., mass panic) is rare. On the other hand, in a real or perceived WMD scenario, outbreaks of multiple unexplained symptoms (i.e., mass psychogenic illness, mass sociogenic illness, mass hysteria, or epidemic hysteria) may be prevalent. Many of the symptoms (fatigue, nausea, vomiting, headache, dizziness/lightheadedness, and anorexia) are common in combat and after toxic chemical exposure, chemical weapon exposure, prodromal infectious illness, and acute radiation sickness.
Mil Med 2001 Dec
PMID:Collective behaviors: mass panic and outbreaks of multiple unexplained symptoms. 1177 31

First-term attrition, defined as failing to complete the contracted first enlistment term, is one of the most serious and costly problems faced by the U.S. Navy. This study was an investigation of 1-year Navy attrition in relation to demographic factors and variables assessed by the Sailors' Health Inventory Program (SHIP) questionnaire, a medical and psychosocial history questionnaire completed by all Navy recruits. Overall attrition, as well as specific categories of attrition (e.g., medical, behavioral, and administrative), were studied. The sample consisted of 66,690 Navy recruits whose status (retention vs. attrition) could be tracked to the 1-year mark. The strongest predictors of overall attrition were educational level, self-reported history of shortness of breath, ever being suspended or expelled from school, history of depression/excessive worry, fainting or dizziness, and recurrent back pain. Many other medical and psychosocial items from SHIP were also predictive of attrition. Similar factors were associated with different categories of attrition (e.g., medical, behavioral). The implications of these findings for attrition reduction strategies are discussed.
Mil Med 2002 Sep
PMID:Predictors of Navy attrition. I. Analysis of 1-year attrition. 1236 69

Arnold-Chiari I malformation (Chiari I) is a congenital disorder characterized by caudal herniation of cerebellar tonsils through the foramen magnum. The symptoms and signs include headaches precipitated by coughing or exertion, dizziness, visual or oculomotor symptoms, dysphagia, trunk or extremity dysesthesias, ataxia, and drop attacks indicating cerebellar or cervical cord lesion. The symptoms may be provoked by increased intracranial pressure. The mean age of onset of symptoms is 25 years; consequently, previously unidentified Chiari I malformations occur in military personnel. Chiari I is associated with deaths following minor trauma, with acute respiratory failure, and with transient quadriparesis occurring in contact sports. Furthermore, Chiari I symptoms may be aggravated by chiropractic manipulation. This report describes symptoms and signs of Chiari I in four military conscripts in the Finnish Defense Forces. It is important to detect Chiari I in military personnel to establish appropriate service fitness and safety for these patients.
Mil Med 2006 Feb
PMID:Arnold-Chiari malformation type I in military conscripts: symptoms and effects on service fitness. 1657 91

The purpose of this study was to describe the effects of blast exposure on hearing status. This study retrospectively analyzed hearing thresholds and otologic complaints for >250 patients with blast-related injuries from the global war on terror. Of patients who received full diagnostic evaluations, 32% reported a history of tympanic membrane perforation, 49% experienced tinnitus, 26% reported otalgia (ear pain), and 15% reported dizziness. Expected hearing thresholds were computed by applying age-correction factors to hearing tests performed earlier in the service members' careers and before their most recent deployment. Expected hearing thresholds were significantly better than actual postdeployment thresholds, indicating that significant changes occurred in the patients' hearing that could not be accounted for by age. Results from this study underline the need for documentation of pre-and postdeployment hearing tests and prompt otologic evaluation for the blast-exposed population.
Mil Med 2007 Jul
PMID:Blast injury of the ear: clinical update from the global war on terror. 1769 85

The objective of this study was to investigate the relationship between acute vestibular dysfunction as measured by the Dizziness Handicap Inventory and the Dynamic Visual Acuity Test and the ability to remain on active duty status in the U.S. military 1 year after mild traumatic brain injury. This longitudinal prospective study was conducted by the Defense and Veterans Brain Injury Clinic at Marine Corp Base, Camp Pendleton, California. Participants (n = 47, controls = 44) were referrals to the clinic who had sustained a mild traumatic brain injury and were initially seen within 6 days of injury, then weekly for 1 month, and for follow-up 12 months later. The results demonstrated that those on active duty at 12 months were older in age, had more years of service, and had no history of psychiatric illness or apparent secondary gain issues. Acute vestibular dysfunction and demographic and injury variables were not significantly correlated or predictive of work status at 12 months.
Mil Med 2007 Aug
PMID:To investigate the influence of acute vestibular impairment following mild traumatic brain injury on subsequent ability to remain on activity duty 12 months later. 1780 77