keyword
MENU ▼
Read by QxMD icon Read
search

canalolithiasis

keyword
https://www.readbyqxmd.com/read/29921048/-diagnosis-and-treatment-of-canal-conversion-during-canalith-repositioning-procedure-for-benign-paroxysmal-positional-vertigo
#1
H M Huang, Y Huang, Y Cui, R M Ge, M Fu
Objective: To investigate the diagnosis and treatment of canal conversion during canalith repositioning procedure for benign paroxysmal positional vertigo. Method: The clinic features, nystagmus characteristics, diagnosis and treatment of the patients with benign paroxysmal positional vertigo who suffered from canal conversion during canalith repositioning procedure were analyzed retrospectively.All patients'positioning test and canalith repositioning procedure were done with the aid of videonystagmography...
June 5, 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29798501/-analysis-of-repositioning-nystagmus-in-patients-with-posterior-canal-benign-paroxysmal-positional-vertigo
#2
Q P Gong, Y Zhang, Y J Li, X R Xu, J Y Luo
Objective: To conclude the four types of nystagmus in the final position during canalith repositioning procedure (CRP) for posterior canal benign paroxysmal positional vertigo (PC-BPPV), and predict the outcome of CRP therapy. Method: Nystagmus were recorded by an infrared charge-coupled devicecamera when underwent CRP therapy, which observed in the final position and concluded into four types. Result: Two hundred and twenty-three patients were included in our research and the results as follow. ①The nystagmus replicates the initial nystagmus during the Hallpike maneuver, which suggests therapeutic outcome,128 cases in total (57...
February 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29684032/pseudo-spontaneous-nystagmus-in-patients-with-geotropic-direction-changing-positional-nystagmus
#3
Seok Min Hong, Sung Kyun Kim, Il-Seok Park, Min Gyeong Shim
BACKGROUND: Pseudo-spontaneous nystagmus has been reported in patients with direction-changing positional nystagmus (DCPN). Recently, the concept of a "light cupula" has been introduced as a pathophysiology that can exhibit persistent geotropic DCPN. Patients with persistent DCPN could have different characteristics of nystagmus. Therefore, we investigated the pseudo-spontaneous nystagmus in patients with transient (canalolithiasis) and persistent (belong to light cupula theory) geotropic DCPN...
2018: PloS One
https://www.readbyqxmd.com/read/29481705/utility-of-the-bow-and-lean-test-in-predicting-subtype-of-benign-paroxysmal-positional-vertigo
#4
Seongjun Choi, Hye Rang Choi, Hyunjoo Nahm, Kyujin Han, Jung Eun Shin, Chang-Hee Kim
OBJECTIVES/HYPOTHESIS: To investigate the role of the bow and lean test (BLT) in the diagnosis of benign paroxysmal positional vertigo (BPPV). STUDY DESIGN: Retrospective case-control study. METHODS: Between March 2015 and June 2017, we enrolled 113 patients with posterior semicircular canal (PSCC) BPPV, 74 patients with lateral semicircular canal (LSCC) canalolithiasis, 53 patients with LSCC cupulolithiasis, and 32 patients with light cupula...
February 26, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29061034/the-light-cupula-an-emerging-new-concept-for-positional-vertigo
#5
REVIEW
Min-Beom Kim, Seok Min Hong, Hyerang Choi, Seongjun Choi, Ngoc Chien Pham, Jung Eun Shin, Chang-Hee Kim
Benign paroxysmal positional vertigo (BPPV) is the most common type of positional vertigo. A canalolithiasis-type of BPPV involving the lateral semicircular canal (LSCC) shows a characteristic direction-changing positional nystagmus (DCPN) which beats towards the lower ear (geotropic) on turning the head to either side in a supine position. Because geotropic DCPN in LSCC canalolithiasis is transient with a latency of a few seconds, the diagnosis can be challenging if geotropic DCPN is persistent without latency...
January 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/28965618/efficacy-of-particle-repositioning-manoeuvres-in-benign-positional-paroxysmal-vertigo-a-revision-of-176-cases-treated-in-a-tertiary-care-centre
#6
Claudio Carnevale, Diego J Arancibia-Tagle, Elena Rizzo-Riera, Guillermo Til-Perez, Pedro L Sarría-Echegaray, Julio J Rama-Lopez, Santiago Quer-Canut, German Fermin-Gamero, Manuel D Tomas-Barberan
INTRODUCTION AND OBJECTIVES: Benign paroxysmal positional vertigo is the most common peripheral vertigo disease. The aim of this paper is to review the results obtained with the different specific particle repositioning manoeuvres, evaluating the possible risk factors linked to a poorer prognosis. METHODS: One hundred and seventy-six patients with a diagnosis of benign paroxysmal positional vertigo were reviewed retrospectively, of whom 150 had vertigo of the posterior canal, 20 had vertigo of the horizontal canal, 3 had vertigo of the superior canal, and 3 had a double vertigo...
September 28, 2017: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/28865839/ovemp-as-an-objective-indicator-of-successful-repositioning-maneuver
#7
Samir Asal, Osama Sobhy, Amany Balbaa
BACKGROUND AND OBJECTIVE: Benign paroxysmal positioning vertigo (BPPV) is the most common peripheral vestibular disorder. Canalolithiasis in the posterior semi-circular canal is the most common underlying pathology that can be treated effectively by repositioning maneuvers. Our hypothesis suggested that successful maneuvers can lead to repositioning of dislodged otoconia to the utricle. MATERIALS AND METHODS: Air conducted oVEMP, which is thought to originate from the contra-lateral utricular organ was measured in twenty patients with unilateral BPPV and we compared n1-p1 peak to peak amplitude of the affected ears in 3 separate intervals: on pre-treatment when typical nystagmus was confirmed, immediately after, and 1 week after repositioning maneuvers to assess change, if any, in amplitude...
August 30, 2017: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/28834895/pseudo-spontaneous-nystagmus-in-horizontal-semicircular-canal-canalolithiasis
#8
Dong Hyuk Im, Young Soo Yang, Hyerang Choi, Seongjun Choi, Jung Eun Shin, Chang-Hee Kim
Benign paroxysmal positional vertigo (BPPV) involving horizontal semicircular canal (HSCC) is characterized by direction-changing positional nystagmus (DCPN) in a supine roll test, and the occurrence of spontaneous nystagmus in HSCC BPPV has been reported recently. The aim of this study is to investigate the characteristics of pseudo-spontaneous nystagmus (PSN) in patients with HSCC canalolithiasis, and evaluate the effect of the presence of PSN on treatment outcome.Between April 2014 and January 2016, 75 and 59 patients with HSCC canalolithiasis and cupulolithiasis, respectively, were enrolled...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28686379/-anterior-semicircular-canal-benign-paroxysmal-positional-vertigo
#9
Stephen Jacques Alzuphar, Raphaël Maire
Anterior semicircular canal Benign Paroxysmal Positional Vertigo (antBPPV) is the rarest form of semicircular canalolithiasis, corresponding to about 1-2 % of the BPPV. The diagnosis is obtained by either the Dix-Hallpike maneuver or the straight head hanging positioning maneuver, which provoke a characteristic positional down-beating nystagmus. This vertical nystagmus can be associated with a torsional component that helps in localizing the affected side. The differential diagnosis of antBPPV includes the various central lesions that produce vertical down beating nystagmus (posterior fossa)...
October 5, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28685312/affected-ear-up-120%C3%A2-maneuver-for-treatment-of-lateral-semicircular-canal-benign-paroxysmal-positional-vertigo
#10
Hiroaki Ichijo
Although several researchers have tried various canalith repositioning procedures for lateral canalolithiasis, a standard treatment has not been established. We adopt 120° rotation, which is anatomically appropriate because the principle of cure may be the fixing of pathological debris to the dark cells of the utricle. The aims of this study were to clarify the efficacy rate of the affected-ear-up 120° maneuver and to elucidate the appearance rate of lying-down nystagmus in patients with lateral canalolithiasis...
September 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28631688/-benign-paroxysmal-positional-vertigo-modern-concepts-of-its-etiology-and-pathogenesis
#11
REVIEW
N L Kunel'skaya, N G Mokrysheva, A L Guseva, E V Baibakova, E A Manaenkova
The objective of the present review of the literature is the analysis of the currently available data concerning etiology and pathogenesis of benign paroxysmal positional vertigo (BPPV). The special emphasis is placed on the modern hypotheses of BPPV formation that collectively account for not more than 15% of all known cases of this condition. The best explored are the following causes of benign paroxysmal positional vertigo: vestibular neuronitis, head injuries, and disorders in the middle ear. During the recent years, much attention has been given to the role of disturbances of calcium metabolism and osteoporosis in etiology of benign paroxysmal positional vertigo...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/28606300/-benign-paroxysmal-positional-vertigo-treatment
#12
Niels West, Søren Hansen, Sune Land Bloch, Martin Nue Møller, Mads Klokker
Benign paroxysmal positional vertigo (BPPV) remains the most frequent cause of vertigo. The TRV chair is a mechanical device suited for optimization of managing complex cases of BPPV. Although the use of repositioning devices in the management of BPPV is increasing, no applicable guide for the TRV management of the different BPPV subtypes exists. This article presents the techniques for addressing canalolithiasis and cupulolithiasis in the TRV chair for each affected semicircular canal. In a tertiary referral centre like our unit the TRV chair is an asset in the management of BPPV...
June 5, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28177336/nystagmus-intensity-and-direction-in-bow-and-lean-test-an-aid-to-diagnosis-of-lateral-semicircular-canal-benign-paroxysmal-positional-vertigo
#13
V Marcelli
The objective was to evaluate nystagmus intensity and direction (NID) during bow and lean test (BLT) in subjects suffering from idiopathic lateral semicircular canal benign paroxysmal positional vertigo (LSC-BPPV), in order to differentiate between the geotropic and the apogeotropic form and to determine the affected ear before using classic diagnostic procedures. The BLT was performed in 32 subjects affected by LSC-BPPV. "Nystagmus intensity" evaluation allows distinguishing the geotropic variant from the apogeotropic one, while the "nystagmus direction" allows identification of the side...
December 2016: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/27588161/behavior-of-the-posterior-semicircular-canal-after-dix-hallpike-maneuver
#14
Francisco Carlos Zuma e Maia, Pedro Luiz Mangabeira Albernaz, Renato Valério Cal
The objective of the present study is to analyze the quantitative vestibulo-ocular responses in a group of patients with benign paroxysmal positional vertigo (BPPV) canalolithiasis and compare these data with the data of the tridimensional biomechanical model. This study was conducted on 70 patients that presented idiopathic posterior semicircular canal canalolithiasis. The diagnosis was obtained by Dix-Hallpike maneuvers recorded by videonystagmograph. The present study demonstrates that there is a significant correlation between the intensity of the nystagmus and its latency in cases of BPPV-idiopathic posterior semicircular canal canalolithiasis type...
April 20, 2016: Audiology Research
https://www.readbyqxmd.com/read/27577049/onset-time-of-benign-paroxysmal-positional-vertigo
#15
Hiroaki Ichijo
CONCLUSION: Benign paroxysmal positional vertigo (BPPV) is strongly related to sleep. This study proposes a micro-otoconia accumulation theory in which the pathological debris is an aggregate of micro-otoconia over a long time period, and which begins to slide by its own weight during sleep. OBJECTIVES: To examine the onset time of idiopathic BPPV and to investigate its etiology. METHOD: Patients (n = 351) were classified as posterior canalolithiasis (PC), horizontal canalolithiasis (HC), and horizontal heavy cupula (HHC) according to nystagmus findings...
February 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27553764/experimental-model-of-benign-paroxysmal-positional-vertigo-with-biphasic-nystagmus-using-isolated-semicircular-canals
#16
Masanori Yatomi, Yasuo Ogawa, Mamoru Suzuki, Koji Otsuka, Taro Inagaki, Ujimoto Konomi, Kiyoaki Tsukahara
CONCLUSIONS: The co-existence of cupulolithiasis and canalolithiasis might be a possible mechanism for the spontaneous inversion of positional nystagmus. OBJECTIVE: To investigate the mechanism of spontaneous inversion of nystagmus direction without a positional change in experimental models of co-existing cupulolithiasis and canalolithiasis. METHODS: Co-existing canalolithiasis and cupulolithiasis models were prepared using the bullfrog posterior semicircular canal (PSC)...
January 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27486432/an-abbreviated-diagnostic-maneuver-for-posterior-benign-positional-paroxysmal-vertigo
#17
Pia Michael, Carolina Estibaliz Oliva, Marcia Nuñez, Cristian Barraza, Juan Pablo Faúndez, Hayo A Breinbauer
INTRODUCTION: Benign paroxysmal positional vertigo (BPPV) secondary to canalolithiasis of the posterior semicircular canal is perhaps the most frequent cause of vertigo and dizziness. One of its properties is a high response rate to canalith repositioning maneuvers. However, delays in the diagnosis and treatment of this entity can range from days to years, depending on the setting. Here, we present an abbreviated variation of the Dix-Hallpike maneuver, which can be used to diagnose this disease...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27329283/sudden-sensorineural-hearing-loss-with-positional-vertigo-initial-findings-of-positional-nystagmus-and-hearing-outcomes
#18
COMPARATIVE STUDY
Chang-Hee Kim, Jung Eun Shin, Young Soo Yang, Donghyuk Im
OBJECTIVES: To investigate the initial findings of positional nystagmus in patients with sudden sensorineural hearing loss (SSNHL) and positional vertigo, and to compare hearing improvement among patients with different types of positional nystagmus. DESIGN: The characteristics of positional nystagmus upon initial examination were analysed, and the initial mean pure-tone audiometry (PTA) threshold was compared with that at three months after treatment. STUDY SAMPLE: Forty-four SSNHL patients with concomitant positional vertigo were included...
October 2016: International Journal of Audiology
https://www.readbyqxmd.com/read/27228015/direction-reversing-nystagmus-in-horizontal-and-posterior-semicircular-canal-canalolithiasis
#19
Kyung-Hwa Jeong, Jung Eun Shin, Dong Hyuk Shin, Chang-Hee Kim
OBJECTIVES: To investigate the incidence and characteristics of direction-reversing nystagmus in patients with horizontal (HSCC) and posterior semicircular canal (PSCC) canalolithiasis, and evaluate the effect of direction-reversing nystagmus on the treatment outcome. STUDY DESIGN: A retrospective study. METHODS: Between March 2014 and September 2015, 63 and 92 consecutive patients with HSCC and PSCC canalolithiasis, respectively, were enrolled...
July 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27174206/classification-diagnostic-criteria-and-management-of-benign-paroxysmal-positional-vertigo
#20
REVIEW
Takao Imai, Noriaki Takeda, Tetsuo Ikezono, Kohichiro Shigeno, Masatsugu Asai, Yukio Watanabe, Mamoru Suzuki
Benign paroxysmal positional vertigo (BPPV) is the most common peripheral vertigo and the posterior and/or lateral semicircular canals are usually affected. BPPV is characterized by brief attacks of rotatory vertigo associated with positional and/or positioning nystagmus, which are elicited by specific head positions or changes in head position relative to gravity. In patients with the posterior-canal-type of BPPV, torsional nystagmus is induced by the Dix-Hallpike maneuver. In patients with the lateral-canal-type of BPPV, horizontal geotropic or apogeotropic nystagmus is induced by the supine roll test...
February 2017: Auris, Nasus, Larynx
keyword
keyword
78044
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"