In Vivo Intraocular Pressure Monitoring during Microincision Vitrectomy with and without Active Control of Infusion Pressure

2017 ◽  
Vol 27 (5) ◽  
pp. 601-606 ◽  
Author(s):  
Hyun S. Yang ◽  
Young I. Yun ◽  
Jong H. Park ◽  
Sangkyung Choi ◽  
Je M. Woo
Keyword(s):  
Intraocular Pressure ◽  
Case Series ◽  
Constant Infusion ◽  
Monitoring And Control ◽  
Pressure Monitoring ◽  
Infusion Pressure ◽  
Group 2 ◽  
Prospective Case Series ◽  
Group 1

Purpose To evaluate intraocular pressure (IOP) fluctuation during vitrectomy, we directly monitored IOP in vivo using 2 vitrectomy machines with or without constant infusion pressure monitoring and control. Methods Among 61 eyes of 61 consecutive patients, 32 were assigned to the Accurus system (group 1) and 29 were assigned to the Constellation system (group 2) in this prospective case series. The IOP fluctuations were evaluated during routine vitrectomy procedures. Results The initial IOP before vitrectomy was 20.3 ± 2.4 mm Hg in group 1 using a conventional vented gas forced infusion system and 20.0 ± 0.0 mm Hg in group 2 using active IOP control at 20 mm Hg (p = 0.532). However, the average IOP change during core vitrectomy was -8.6 ± 4.3 mm Hg in group 1 and -0.8 ± 1.1 in group 2 (p<00.001). Maximum IOP was significantly decreased in group 1 (-17.0 ± 2.6 mm Hg) compared with that in group 2 (-4.1 ± 2.2 mm Hg) (p<00.001). Partial ocular collapse was observed during vitrectomy only in group 1 (78.1%). Peak IOP significantly increased during scleral compression and gas and fluid injection but was not significantly different between the groups (all p≥0.147). The IOP fluctuation range was 50-70 mm Hg in both groups. Conclusions The IOP fluctuated significantly during routine vitrectomy using both systems. Hypotony and partial ocular collapse were more frequently observed during vitrectomy with the Accurus system than with the Constellation system. Both systems were vulnerable to IOP surge during indentation and intravitreal injection.

Effect of bandaging on postoperative swelling after tibial plateau levelling osteotomy

2010 ◽  
Vol 23 (04) ◽  
pp. 240-244 ◽  
Author(s):  
J.K. Roush ◽  
K. L. Bilicki ◽  
G.Baker. Baker ◽  
M.D. Unis
Keyword(s):  
Tibial Plateau ◽  
Case Series ◽  
Small Animal ◽  
Significant Linear Correlation ◽  
Significant Difference ◽  
Group 2 ◽  
Prospective Case Series ◽  
Distal Aspect ◽  
Postoperative Swelling ◽  
Group 1

Summary Objective: To compare the effects of bandaging on immediate postoperative swelling using a modified Robert-Jones bandage after tibial plateau levelling osteotomy (TPLO) in dogs. Study design: Prospective case series. Methods: Dogs undergoing a TPLO were randomly placed into two groups. Group 1 received a modified Robert-Jones bandage postoperatively for a 24 hour period and Group 2 was not bandaged. Hindlimb circumference was measured at the level of the mid-patella, the distal aspect of the tibial crest, the midpoint of the tibial diaphysis and the hock. Measurements were recorded and compared in each group preoperatively and at 24 hours and 48 hours post-operatively. Interobserver variability was compared between the two observers. Results: There was no significant difference in postoperative swelling, as measured by the percentage change in circumference, between bandaged and unbandaged operated limbs after the TPLO at 24 and 48 hours at any site. Some significant differences in measurement at particular sites were observed between the two different observers, but there was a significant linear correlation at all sites between observers. The observer with the least experience consistently had slightly higher measurements at these sites. Clinical relevance: The use of a modified Robert-Jones bandage after TPLO did not prevent statistically significant postoperative swelling, and thus may not be indicated for this purpose. Postoperative bandages placed to control swelling after other small animal orthopaedic procedures should be evaluated individually for efficacy.

scholarly journals Clinical Research on Lens Cortex Removal Assisted by Hydropolish

2021 ◽  
Author(s):  
Lin Yao ◽  
Haiqing Bai
Keyword(s):  
Retrospective Study ◽  
Clinical Research ◽  
Cataract Surgery ◽  
Case Series ◽  
Time Saving ◽  
Group 2 ◽  
Prospective Case Series ◽  
Phacoemulsification Cataract Surgery ◽  
Entire Procedure ◽  
Group 1

Abstract Background: This retrospective study investigated the efficiency and safety of lens cortex removal assisted by a fluid-based capsular polishing technique, hydropolish. Study design: Prospective case series.Methods: Sixty patients were included in this study. All these patients underwent phacoemulsification cataract surgery using different sequences of surgical steps and were divided into two groups; hydropolish before irrigation/aspiration (I/A) (Group 1, 30 eyes) and I/A before hydropolish (Group 2, 30 eyes). Hydropolish and I/A cortex time, and time of the entire procedure were noted. Results: The hydropolish time was longer in group 1 than that in group 2 (P ≤ 0.001). The I/A cortex time and hydropolish and I/A cortex time together were not different between the two groups (P = 0.294 and P = 0.258, respectively). However, the time of the entire procedure was shorter in group 1 (P = 0.002). Conclusions: Lens cortex removal assisted by hydropolish is a safe, time saving, and simple surgery.

scholarly journals Comparative study of fluticasone propionate combined with azelastine versus fluticasone propionate alone as nasal spray in allergic rhinitis

2021 ◽  
Vol 7 (3) ◽  
pp. 487
Author(s):  
Dhanush H. C. ◽  
Santosh Malashetti ◽  
Chandrashekharayya S. H. ◽  
Prabhu Khavasi
Keyword(s):  
Allergic Rhinitis ◽  
Fluticasone Propionate ◽  
Nasal Spray ◽  
Case Series ◽  
Case Series Study ◽  
Before And After ◽  
The Difference ◽  
Group 2 ◽  
Prospective Case Series ◽  
Group 1

<p><strong>Background: </strong>Allergic rhinitis (AR) is a symptomatic disorder of the nose induced after allergen exposure due to an IgE-mediated inflammation of membranes lining the nose. Allergic rhinitis is subdivided into intermittent (IAR) or persistent (PER) disease and the severity into mild or moderate/severe. The most widely used and effective medications to treat allergic rhinitis are oral or topical antihistamines and topical nasal steroids.</p><p><strong>Methods: </strong>This prospective case series study included 80 patients of PER divided randomly in to 2 groups of 40 each with group 1 receiving fluticasone propionate and azelastine and group 2 receiving fluticasone propionate alone. Individual symptom scores and total symptom score (TSS) were recorded before treatment and after 4 weeks of treatment.</p><p><strong>Results: </strong><strong> </strong>The difference in mean TSS before and after 4 weeks study period were statistically significant in both groups (p&lt;0.01 in both). Group 1 had TSS of 1.525±1.06 and group 2 had TSS of 3.275±1.75 after 4 weeks of treatment and the difference between them was statistically significant (p&lt;0.01).</p><p><strong>Conclusions: </strong>In allergic rhinitis, both fluticasone propionate + azelastine nasal spray and fluticasone propionate nasal spray are effective in relieving symptoms. But, fluticasone propionate and azelastine has significant reduction of symptoms when compared with fluticasone propionate alone.</p>

In-vivo evaluation of the effect of cyanoacrylate on prosthetic vascular graft infection – does cyanoacrylate increase the severity of infection?

VASA ◽  
2020 ◽  
Vol 49 (4) ◽  
pp. 281-284
Author(s):  
Atıf Yolgosteren ◽  
Gencehan Kumtepe ◽  
Melda Payaslioglu ◽  
Cuneyt Ozakin
Keyword(s):  
Vascular Graft ◽  
Graft Infection ◽  
Vascular Graft Infection ◽  
Group 4 ◽  
Significant Difference ◽  
Group 3 ◽  
Group 2 ◽  
Prosthetic Vascular Graft Infection ◽  
Group 1

Summary. Background: Prosthetic vascular graft infection (PVGI) is a complication with high mortality. Cyanoacrylate (CA) is an adhesive which has been used in a number of surgical procedures. In this in-vivo study, we aimed to evaluate the relationship between PVGI and CA. Materials and methods: Thirty-two rats were equally divided into four groups. Pouch was formed on back of rats until deep fascia. In group 1, vascular graft with polyethyleneterephthalate (PET) was placed into pouch. In group 2, MRSA strain with a density of 1 ml 0.5 MacFarland was injected into pouch. In group 3, 1 cm 2 vascular graft with PET piece was placed into pouch and MRSA strain with a density of 1 ml 0.5 MacFarland was injected. In group 4, 1 cm 2 vascular graft with PET piece impregnated with N-butyl cyanoacrylate-based adhesive was placed and MRSA strain with a density of 1 ml 0.5 MacFarland was injected. All rats were scarified in 96th hour, culture samples were taken where intervention was performed and were evaluated microbiologically. Bacteria reproducing in each group were numerically evaluated based on colony-forming unit (CFU/ml) and compared by taking their average. Results: MRSA reproduction of 0 CFU/ml in group 1, of 1410 CFU/ml in group 2, of 180 200 CFU/ml in group 3 and of 625 300 CFU/ml in group 4 was present. A statistically significant difference was present between group 1 and group 4 (p < 0.01), between group 2 and group 4 (p < 0.01), between group 3 and group 4 (p < 0.05). In terms of reproduction, no statistically significant difference was found in group 1, group 2, group 3 in themselves. Conclusions: We observed that the rate of infection increased in the cyanoacyrylate group where cyanoacrylate was used. We think that surgeon should be more careful in using CA in vascular surgery.

scholarly journals An In Vivo Confocal Microscopic Study of Corneal Nerve Morphology in Unilateral Keratoconus

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Natasha Kishore Pahuja ◽  
Rohit Shetty ◽  
Rudy M. M. A. Nuijts ◽  
Aarti Agrawal ◽  
Arkasubhra Ghosh ◽  
...  
Keyword(s):  
Nerve Fiber ◽  
Nerve Branch ◽  
Intergroup Comparison ◽  
Corneal Nerve ◽  
Group 3 ◽  
Group 2 ◽  
Branch Density ◽  
Corneal Nerve Morphology ◽  
Group 1

Purpose.To study the corneal nerve morphology and its importance in unilateral keratoconus.Materials and Methods.In this prospective cross-sectional study, 33 eyes of 33 patients with keratoconus in one eye (Group 3) were compared with the other normal eye of the same patients (Group 2) and 30 eyes of healthy patients (Group 1). All patients underwent detailed ophthalmic examination followed by topography with Pentacam HR and in vivo confocal microscopy (IVCM). Five images obtained with IVCM were analyzed using an automated CCmetrics software version 1.0 for changes in subbasal plexus of nerves.Results.Intergroup comparison showed statistically significant reduction in corneal nerve fiber density (CNFD) and length (CNFL) in Group 3 as compared to Group 1 (p<0.001andp=0.001, resp.) and Group 2 (p=0.01andp=0.02, resp.). Though corneal nerve fiber length, diameter, area, width, corneal nerve branch density, and corneal total branch density were found to be higher in decentered cones, only the corneal nerve branch density (CNBD) was found to be statistically significant (p<0.01) as compared to centered cones.Conclusion.Quantitative changes in the corneal nerve morphology can be used as an imaging marker for the early diagnosis of keratoconus before the onset of refractive or topography changes.

scholarly journals P0150EFFECT OF SEROTONIN REUPTAKE INHIBITORS (SSRIS) AND SEROTONIN-NOREPINEPHRINE REUPTAKE INHIBITORS (SNRIS) ON BLOOD PRESSURE VARIABILITY USING 24 HOURS AMBULATORY BLOOD PRESSURE MONITORING

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Nabeel Aslam ◽  
Sobia Memon ◽  
Hani Wadei ◽  
Shehzad Niazi
Keyword(s):  
Blood Pressure ◽  
Linear Regression ◽  
Ambulatory Blood Pressure ◽  
Psychiatric Diagnosis ◽  
Blood Pressure Monitoring ◽  
Pressure Monitoring ◽  
Night Time ◽  
Group 2 ◽  
Adverse Cardiovascular Outcome ◽  
Group 1

Abstract Background and Aims Hypertension (HTN) and psychiatric disorders frequently co-exist in general population. Serotonin re-uptake inhibitors (SSRIs) and serotonin-norepinephrine re-uptake inhibitors (SNRIs) affect serotonin and norepinephrine and may lead to variation in blood pressure (BP). There is paucity of data on blood pressure variations using 24 hours ambulatory blood pressure monitoring (ABPM) with the use of SSRIs/NSRIs. Method Subjects who underwent psychiatric evaluation and ABPM within six month of each other between 1/1/2012 to 12/31/2016 at Mayo Clinic Florida were identified using billing data. Demographics, co-morbidities, medications, ABPM, and laboratory results were retrospectively collected from medical records. Subjects were divided into groups – subjects with no psychiatric diagnosis and no psychiatric medicine (Group 1) and subjects with psychiatric diagnosis and on SSRIs/NSRIs (Group 2). BP systolic and diastolic levels (day time, night time) were compared between groups controlling for age, sex, race, presence or absence of HTN, diabetes mellitus (DM) and smoking. Single and multivariable linear regression models were used to analyze group differences. Results Total of 367 subjects met inclusion criteria – Group 1=135; Group 2=232. The subjects in group 2 were older (median age 57 yrs vs 47 yrs p&lt;0.001), white (69.8 vs 60% p=0.002), smokers (15.9 vs 3.0% p&lt;0.001), history of HTN (62.5 vs 9.6%), and DM (21.1% vs 0%). ABPM showed that subjects in group 2 had higher median daytime systolic BP (131 vs 124), higher median night time systolic BP (120 vs 110), and higher median night time diastolic BP (68 vs 63). Multivariable linear regression controlling for age, sex, race, presence or absence of HTN, DM, and smoking showed that use of SSRIs/NSRIs (group 2) was significantly associated with higher night time systolic BP (8.36 mm; 95% CI 4.2, 12.5; p &lt;0.0001) and higher night time diastolic BP (4.6 mm, 95% CI 1.9, 7.29, p=0.001). On subgroup analysis comparing subjects with use of SSRIs vs NSRIs, there was no statistically significant difference in the daytime or night time systolic or diastolic BP. Conclusion Use of SSRIs and NSRIs are associated with higher nocturnal systolic and diastolic BP, which can potentially increase the risk of adverse cardiovascular outcome in this population. Higher nocturnal BP may be due to ongoing sympathetic activation during sleep with serotonin and norepinephrine with the use of SRRIs and NSRI. Further well designed prospective studies using ABPM are needed to determine the risk of nocturnal hypertension with the use of SSRIs/NSRIs that could have potential adverse cardiovascular outcome.

scholarly journals 173TRANSFER OF VITRIFIED BLASTOCYSTS FROM ONE OR TWO SUPEROVULATED LARGE WHITE HYPERPROLIFIC DONORS TO MEISHAN RECIPIENTS: REPRODUCTIVE PARAMETERS AT DAY 30 OF PREGNANCY

2004 ◽  
Vol 16 (2) ◽  
pp. 208
Author(s):  
C. Cuello ◽  
F. Berthelot ◽  
F. Martinat-Botté ◽  
P. Guillouet ◽  
V. Furstoss ◽  
...  
Keyword(s):  
Pregnancy Rate ◽  
Fisher Exact Test ◽  
Corpora Lutea ◽  
Large White ◽  
Embryo Survival ◽  
Exact Test ◽  
Group 2 ◽  
Fresh Semen ◽  
Group 1

The present study was designed to determine the effect of pooling embryos from two donors on the reproductive success of transfer of vitrified/warmed porcine blastocysts. Superovulated Large White hyperprolific gilts (n=24) were used as embryo donors. Gilts were artificially inseminated 12 and 24h after initial detection of estrus using fresh semen, and slaughtered on Days 5.5 to 6 of the estrous cycle (Day 0=Onset of estrus). Embryos were recovered by flushing the uterine horns, and unhatched blastocysts were selected. Vitrification and warming were performed as reported previously (Berthelot et al., 2000 Cryobiology 41, 116–124). Embryo transfers were conducted in asynchronous (−24h) Meishan gilts (n=20). Twenty vitrified/warmed blastocysts were surgically transferred into one uterine horn. Ten recipients received embryos from one donor (group 1) and the other ten transfers were performed with mixed embryos from two donors (group 2). Pregnancy was assessed ultrasonographically at Day 25 after estrus and recipients were slaughtered five days later. The pregnancy rate from the different groups was compared using Fisher exact test. The GLM procedure of SAS was used to determine the effect of the origin of embryos (one or two donors) on the number of developed fetuses and viable fetuses at Day 30 of pregnancy. The ovulation rate was 32.5±11.8 (mean±SD). The total number of embryos collected was 634, of which 57 (9.0%), 36 (5.7%), 513 (80.9%) and 28 (4.4%), were unfertilized oocytes and degenerated embryos, morulae, unhatched blastocysts and hatched blastocysts, respectively. The ratio of collected embryos to the number of corpora lutea was 81.3%. The pregnancy rate for group 1 (70%) was not different (P&gt;0.05) than that for group 2 (90%). No significant differences were detected between group 1 and group 2 for in vivo embryo development (number fetuses/transferred embryos in pregnant recipients; 33.3% v. 40%) or in vivo embryo survival (number viable fetuses/transferred embryos in pregnant recipients; 27.9% v. 33.9%). However, the in vivo efficiency (number viable fetuses/total transferred embryos) was higher (P&lt;0.05) when transfers were performed with embryos from two donors (19.5% v. 30.5%). These results indicate that pooling embryos from two donors increases the in vivo efficiency after transfer of vitrified/warmed porcine blastocysts. This study was supported by grant from SENECA (FPI/99, Spain).

scholarly journals Dynamics of intraocular temperature during local hypothermia (experimental study and mathematical modeling)

2019 ◽  
pp. 383-388
Author(s):  
Lukyan Anatychuk ◽  
Roman Kobyliansky ◽  
Nataliya Pasyechnikova ◽  
Volodymyr Naumenko ◽  
Oleg Zadorozhnyy ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Model ◽  
Biological Tissues ◽  
Comsol Multiphysics ◽  
Rabbit Eye ◽  
Local Contact ◽  
Group 2 ◽  
Local Hypothermia ◽  
Group 1

Therapeutic hypothermia currently is successfully in various fields of medicine to protect biological tissues from ischemia. However the issue of changes in intraocular temperature under hypothermia remains poorly understood. Purpose. To study the dynamics of intraocular temperature in conditions of local hypothermia and on the basis of the obtained data to develop a mathematical model of thermophysical processes in the rabbit eye. Materials and methods. An in vivo experiment was performed on 10 rabbits (20 eyes). In group 1 (5 rabbits, 10 eyes), epibulbar and intraocular temperature was measured after local contact hypothermia through closed eyelids, in group 2 (5 rabbits, 10 eyes) after local contact hypothermia directly through the cornea. ока безпосередньо через рогівку. Для гіпотермії застосовувався гелевий акумулятор холоду температурою -10 °С. Для вимірювання температури в різних відділах ока застосовувався термоелектричний пристрій, розроблений Інститутом термоелектрики НАН і МОН України та ДУ «Інститут очних хвороб і тканинної терапії ім. В. П.Філатова НАМН України». Для розробки математичної моделі теплофізичних процесів в оці кролика використано пакет прикладних програм COMSOL Multiphysics. Результати. Температура склоподібного тіла в 1-й і 2-й групі тварин знизилася в порівнянні з вихідними даними відповідно на 2,8 °С і 5,4 °С. Температурний градієнт між зовнішньою поверхнею рогівки і середньою частиною склоподібного тіла ока кролика в 1-й групі становив 7,1 °С, у 2-й групі – 9,2 °С. На підставі отриманих експериментальних даних було розроблено схематичну, математичну та комп’ютерну моделі ока кролика з урахуванням його теплофізичних особливостей, кровообігу, процесів метаболізму і теплообміну. Висновки. У разі локальної контактної гіпотермії очей кролика відбувається зниження епібульбарної температури і температури внутрішньоочних середовищ, як під час охолодження безпосередньо зовнішньої поверхні рогівки, так і під час впливу холоду через закриті повіки. Ключові слова: внутрішньоочна температура, локальна гіпотермія, око кролика, математична модель ока. Для цитування: Анатичук ЛІ, Пасєчнікова НВ, Науменко ВО, Задорожний ОС, Назаретян РЕ, Кобилянський РР, Верешко ЄЮ. Динаміка внутрішньоочної температури в умовах локальної гіпотермії (експериментальне дослідження та математичне моделювання). Журнал Національної академії медичних наук України. 2019;25(4):383–8

The effectiveness of descemethogoniopuncture depending on the timing of its implementation after microinvasive non-penetrating deep sclerectomy in patients with glaucoma

2021 ◽  
pp. 79-82
Author(s):  
E.L. Sorokin ◽  
◽  
N.V. Postupaeva ◽  
◽  
Keyword(s):  
Intraocular Pressure ◽  
Antihypertensive Effect ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Hypotensive Effect ◽  
Ultrasound Biomicroscopy ◽  
Deep Sclerectomy ◽  
Group 2 ◽  
Group 1

Purpose. Evaluation of the efficacy of descemethogoniopuncture (DGP) at various times after microinvasive non-penetrating deep sclerectomy (MNPDS) in patients with glaucoma. Material and methods. The analysis of the results of DGP in 64 eyes of patients with primary open-angle glaucoma after previously performed MNPDS. According to the timing of DGP after MNPDS, the patients were divided into 3 groups. In the 1st group BPH was performed after 1–2 months (22 eyes), the 2nd group – after 3–4 months (21 eyes), the 3rd group after 5–6 months (21 eyes). The follow-up period was 1 year. Results. The level of intraocular pressure before DGP averaged 15.1±0.6 mm Hg in group 1, 17.5±0.9 mm Hg in group 2, and group – 18.6±0.7 mm Hg. After DGP, 13.1±0.4 mm Hg, 14.6±0.7 mm Hg, 16.1±0.5 mm Hg respectively. According to ultrasound biomicroscopy, the highest and extended intrascleral cavities and tunnels, as well as a thin loose trabeculodescemet membrane (TDM), were observed in the eyes of the 1st group. With an increase in the time after MNPDS, there was a compaction of TDM, a decrease in the height and length of the intrascleral cavity and tunnels. 12 months after DGP, the most pronounced antihypertensive effect without antihypertensive therapy occurred in group 1 – 55% of cases compared with groups 2 and 3 (33% and 14% respectively). Conclusion. The greatest efficiency was shown by performing DGP within 1–2 months after MNPDS, which is associated with the minimum development of proliferative processes in the intrascleral outflow tract in the early stages after this operation. Key words: descemethogoniopuncture, microinvasive non-penetrating deep sclerectomy, intraocular pressure, hypotensive effect, glaucoma.

A TRIAL OF SUBCUTANEOUS VERSUS INTRAVENOUS ADMINISTRATION OF LOW MOLECULAR WEIGHT (LMW) HEPARIN AND UNFRACTIONATED (UF) HEPARIN IN THE TREATMENT OF ESTABLISHED DEEP VENOUS THROMBOSIS (DVT)

1987 ◽  
Author(s):  
C J Parker ◽  
D E Huber ◽  
A R Hedges ◽  
V V Kakkar
Keyword(s):  
Low Molecular Weight ◽  
Heparin Group ◽  
Expert Radiologist ◽  
Intravenous Heparin ◽  
Antithrombotic Effects ◽  
Group 3 ◽  
Group 2 ◽  
Efficacy Of Treatment ◽  
Group 1

In a randomized clinical trial of 100 patients, the in vivo antithrombotic effects of a subcutaneously administered LMW heparin fraction (CY216) used in the treatment of established DVT, was compared with UF heparin administered by either intravenous or subcutaneous routes.Venograms were used to make the initial diagnosis, and efficacy of treatment was assessed by a repeat venogram done on day 6. Comparison of the venograms were done blind by an expert radiologist.Patients were randomized to one of three groups: Group 1 received subcutaneous CY216; Group 2 received subcutaneous UF heparin: Group 3 received continuous intravenous UF heparin. Random patients from each group had detailed haematological tests consisting of twicedaily KCCT and anti-Xa levels. Extension of thrombus occurred in significantly morepatients receiving intravenous heparin than subcutaneous heparin (p-0.02).There was no difference between the two subcutaneousgroups. There were no haematological complications.We conclude that subcutaneous administratiyon of heparin is the treatment of choice in the treatment of DVT.

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