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At least 739 records · Page 41Linked to original sources
PubMed1991

Validation of a method for choice of pacing mode in carotid sinus syndrome with or without sinus bradycardia.

A new method for selection of the pacing mode in 60 consecutive patients with severe cardioinhibitory or mixed carotid sinus syndrome was prospectively validated. DDD pacing was preferred for 26 patients with: (1) the cardioinhibitory form and who had symptomatic pacemaker effect; (2) mixed type I form, (cardioinhibitory and vasodepressor) with symptomatic pacemaker effect, ventriculoatrial conduction or orthostatic hypotension; (3) mixed type II; or (4) severe bradycardia. VVI pacing was selected in the remaining 34 patients without these symptoms. During a 32 +/- 10 month follow-up period syncope and severe dizziness persisted in five patients in the VVI group (15%) and in three patients in the DDD group (12%). Symptomatic relief occurred in 87% (52/60) of patients. Minor symptoms persisted in 47% of the VVI group and 42% of the DDD group. No patient developed cardiac insufficiency or intolerance to pacing. During a 2-month duration a single-blind, randomized, cross-over study compared VVI and DDD pacing, 69% of the patients programmed from DDD to VVI suffered more frequent, severe, and intolerable symptoms. (1) Thirty four of 60 patients (57% of the entire group) in whom VVI pacing was satisfactory were identified prior to pacemaker implant. In the remainder, VVI pacing was contraindicated as it produced frequent side effects. (2) The preimplant predictive value that VVI pacing would be successful was 85% for those eventually receiving VVI pacemakers and the preimplant predictive value that VVI pacing would fail was 69% for those who underwent DDD implant.

Aged↗
PubMed2005

Simultaneous mapping in the left sinus of valsalva and coronary venous system predicts successful catheter ablation from the left sinus of valsalva.

Idiopathic ventricular tachycardia originating from the left epicardium (Epi-VT) can be ablated from the left sinus of Valsalva (LSV) in selected patients. We hypothesized that the analysis of electrograms at the LSV and transitional zone from the great cardiac vein to the anterior interventricular vein (GCV-AIV) could predict the efficacy of radiofrequency catheter ablation (RFCA) from the LSV. Simultaneous mapping in the LSV and coronary venous system was performed in 25 patients (12 VTs and 13 premature ventricular contractions). The earliest ventricular activation (VA) during the arrhythmias was found at the LSV or GCV-AIV in all patients. RF applications from the LSV were successful in 17 patients success group (S-Gr) and failed in 8 failure group (F-Gr). The earliness of the VA recorded in the LSV (VA[LSV]) and in GCV-AIV (VA[GCV-AIV]) was compared between the two groups. (1) The VA[LSV] preceded the QRS onset by 28 +/- 11 ms in S-Gr and 14 +/- 10 ms in F-Gr (P < 0.01). (2) In S-Gr, the VA[GCV-AIV] was earlier than the VA[LSV] in 5 five patients (35%). However, in F-Gr, the VA[GCV-AIV] was earlier than the VA[LSV] in all patients. (3) In patients in whom the earliest VA was found at the LSV or GCV-AIV, a VA [GCV-AIV] preceding the VA[LSV] by less than 10 ms identified successful RFCA from the LSV with a sensitivity of 88 %, specificity of 100%, and high predictive value. With a detailed analysis of the electrograms recorded from the GCV-AIV and LSV, it was possible to identify the successful catheter ablation of Epi-VT from the LSV.

Catheter Ablation↗
PubMed1977

Cavernous sinus syndrome produced by communication between the external carotid artery and cavernous sinus.

The authors present two cases of cavernous sinus syndrome with spontaneous onset secondary to arteriovenous malformations and review the cases reported previously. These malformations enlarge slowly and produce symptoms only in adult life. Diagnosis may be difficult when there is no associated bruit. Adequate evaluation necessitates selective angiography of both the internal and external carotid artery circulation and the vertebral circulation. Conservative treatment is recommended unless symptoms worsen or there is progressive loss of vision.

Adult↗
PubMed1998

[Corticotherapy in ENT. Subglottic laryngitis in children, acute sinusitis, naso-sinusal polyposis, sero-mucous otitis].

Corticosteroid therapy is a key element in the treatment of acute subglottic laryngitis as well as certain types of sinusitis and seromucous otitis. Insufficient or lacking compensatory mechanism in the physiological regulation of the ENT mucosa favors the progression of these different conditions to chronic or life threatening situations, particularly for acute laryngitis. Corticosteroid therapy is one of the management steps; it should be adapted to each individual and of short duration. The goal of corticosteroid therapy is to decrease inflammation, provide pain relief and reestablish the physiological state of the ENT mucosa.

Acute Disease↗
PubMed2001

Retrospective radiographic analysis of sinus graft and implant placement procedures from the Academy of Osseointegration Consensus Conference on Sinus Grafts.

A retrospective quantitative radiographic analysis determined the effect of graft material and smoking status on the maintenance of graft height over 3 years. Analysis of variance models with planned comparison were constructed to compare mean graft change by (1) graft material and (2) smoking status. Maintenance of bone height was significantly greater in intraoral autogenous grafts versus allografts (P < .05). The effect of smoking on implant loss revealed a significant difference in implant survival (P < .05). Autogenous bone generally resulted in a more favorable outcome over a 3-year period. Smoking adversely impacted implant survival in sinus grafts.

Alveolar Ridge Augmentation↗
PubMed1987

[Proton irradiation of spontaneous arterio-sinus anastomoses in the cavernous sinus region].

Altogether 10 patients with spontaneous arteriosinusal anastomoses in the cavernous sinus area have been irradiated at the N. N. Burdenko Institute of Neurosurgery, USSR AMS. since 1983 using the synchrotron of the Institute of Theoretical and Experimental Physics. A "piercing" method with a proton beam of 12 mm in diameter (in one case 10 mm) was employed. Nine patients had unilateral anastomoses with the blood supply from branches of the internal and/or external carotid arteries, and one patient had a bilateral anastomosis. Irradiation was given in 2 fractions, in 2-3 days, the maximum total dose was 50-60 Gy. Regression of ophthalmological symptoms was noted 2-3 months after irradiation. Convalescence was noted in 8 patients, a follow-up period in 2 patients was insufficient. Of 7 patients examined by angiography complete thrombosis of the anastomosis was noted in 4, considerable reduction of the blood flow was noted in 3.

Adult↗
PubMed1981

Further studies on clotting changes in patients with cerebral sinus thrombosis. A case with thrombosis of right transverse sinus.

A 28 year old woman with angiographically proven thrombosis of right cerebral transverse sinus was studied from a clotting point of view. The changes noted were decreased fibrinolytic activity and increased collagen platelet aggregation. The patient presented loss of consciousness, aphasia, mental confusion, migh right hemiparesis, papilloedema. The treatment with dipyridamole, aspirin and a nicotinic acid derivative was followed by good results. After about a month the fundus reverted to normal. A clotting study is indicative in every patient with cerebral venous thrombosis.

Adult↗
PubMed1998

[Regencur hydrogel sinus absorption in the treatment of chronic purulent sinusitis].

Local application of hydrogels based on the sorbent regencur with dioxidine was tried for efficacy against chronic purulent maxillary sinusitis in 30 patients versus matched controls. Changes in the subjective and objective manifestations of the disease were registered on the sensor-analog and visual-analog scales. The findings indicate higher efficacy of regencur hydrogels with dioxidine.

Abscess↗