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1.
Cureus ; 15(8): e44021, 2023 Aug.
Article in English | MEDLINE | ID: mdl-37746428

ABSTRACT

Background Hypospadias is a common congenital anomaly that needs repair at an early age (six months to one year). Ironically, many cases in India present late due to a lack of healthcare facilities, poverty, and illiteracy. Adult patients are different from children as they are aware of their genitalia. They are concerned with the aesthetics and, predominantly, the potency. In this study, we present the perspectives and outcomes of 111 adult cases of hypospadias. Methodology In this retrospective study conducted between January 2010 and December 2020, 111 patients aged more than 14 years who were diagnosed with hypospadias of any level with or without mild-to-moderate chordee were included. Hypospadias repair using a tubularized incised plate (TIP) urethroplasty technique was performed, and patients after surgery were followed up at three months, six months, and 12 months for any complications with physical examination, uroflowmetry, and patient-related outcomes (PROs). Results Age varied from 14 years to 32 years (mean = 19.88 years, SD = 5.93). The most frequent meatus positions after chordee adjustment were distal (n = 64, 57.65%), middle (n = 25, 22.52%), and proximal (n = 22, 19.82%). Among these, four patients had penoscrotal transposition. Chordee was present in 65.7% (n = 73) of the cases. (<30° in 38.7%, n = 43; 30°-60° in 23.4%, n = 26, and >60° in 3.6%, n = 4). Chordee was corrected using many techniques, including ventral corporotomies. Urethroplasty was done using TIP and spongioplasty in 89% (n = 99), and one patient underwent inner preputial onlay flap urethroplasty. Snodgraft was used to augment the urethral plate in 10 cases. The success rate of one-stage surgery was 74.77% in our series, which significantly correlated with PROs. Uroflow varied from 12 mL/second to 18 mL/second, and in the majority of the cases, the flow rate improved over time. The most common complication was urethrocutaneous fistula in 11 (11.8%) patients, followed by glanular dehiscence in nine (8.1%) patients. Conclusions Adult patients undergoing primary hypospadias repair generally show good outcomes. Patients can have an acceptable mild degree of residual chordee and torsion, which correlate well with PROs. In our series, hypospadias fistula was the most common complication of hypospadias surgery, followed by glanular dehiscence.

4.
Urol Ann ; 13(2): 142-149, 2021.
Article in English | MEDLINE | ID: mdl-34194140

ABSTRACT

INTRODUCTION: Perineal urethrostomy (PU) is a valid single stage option with maximum success to manage complex anterior urethral strictures. AIMS: To evaluate the functional outcome of permanent PU using the Blandy technique in older patients or PU with staged reconstruction in young patients with severely diseased distal urethra. MATERIALS AND METHODS: This is a retrospective analysis of 124 patients. They underwent Blandy's PU with or without Johanson stage 1. Exclusion criteria included patients with posterior urethral strictures or bladder neck contractures. RESULTS: Mean age of patients was 54 years. Strictures due to catheterisation or instrumentation were most common - 85 (68.54%). Out of 124 patients, 71(57.3%) of them were posted for PU with Johanson stage 1 and 53 for PU only (42.7%) according to patients' choice. In patients age below 50 years, PU (N=10), PU with Johanson stage 1 (N=40) and Johanson stage 2 (N= 8) patients had mean Qmax of 20.2ml/s (17-24), 20.7ml/s (16-26), 16.375ml/s (14-18) respectively. In patients age> 50 years, PU (N=43), PU with Johanson stage 1 (N=31) and Johanson stage 2 (N= 4) patients had mean Qmax of 16.41ml/s (11-24), 17.25ml/s (11-25) and14.75 ml/s (12-17) respectively.For patients with only PU, 8/53 patients (15.09%) required secondary intervention (stomal dilatation N=6 and TURP N=2) while in PU with Johanson stage 1 patients, 10/71(14.08%) required secondary intervention (Stomal dilatation N=6, 8.45% and TURP N= 4, 5.6%). 112/124 (90.32%) were considered successful. CONCLUSION: Since most of patients have suffered for years, PU provides results in one stage.

5.
J Anaesthesiol Clin Pharmacol ; 37(1): 3-13, 2021.
Article in English | MEDLINE | ID: mdl-34103816

ABSTRACT

In a developing country like India, with limited resources and access to healthcare facilities, dealing with massive hemorrhage is a major challenge. This challenge gets compounded by pre-existing anemia, hemostatic disorders, and logistic issues of timely transfer of such patients from peripheral hospitals to centers with adequate resources and management expertise. Despite the awareness amongst healthcare providers regarding management modalities of bleeding patients, no uniform Patient Blood Management (PBM) or perioperative bleeding management protocols have been implemented in India, yet. In light of this, an interdisciplinary expert group came together, comprising of experts working in transfusion medicine, hematology, obstetrics, anesthesiology and intensive care, to review current practices in management of bleeding in Indian healthcare institutions and evaluating the feasibility of implementing uniform PBM guidelines. The specific intent was to perform a gap analysis between the ideal and the current status in terms of practices and resources. The expert group identified interdisciplinary education in PBM and bleeding management, bleeding history, viscoelastic and platelet function testing, and the implementation of validated, setting-specific bleeding management protocols (algorithms) as important tools in PBM and perioperative bleeding management. Here, trauma, major surgery, postpartum hemorrhage, cardiac and liver surgery are the most common clinical settings associated with massive blood loss. Accordingly, PBM should be implemented as a multidisciplinary and practically applicable concept in India in a timely manner in order to optimize the use the precious resource blood and to increase patients' safety.

6.
Anesthesiol Res Pract ; 2020: 8816729, 2020.
Article in English | MEDLINE | ID: mdl-33376486

ABSTRACT

This retrospective observational case series describes a single centre's preparations and experience of 53 emergency tracheal intubations in patients with COVID-19 respiratory failure. The findings of a contemporaneous online survey exploring technical and nontechnical aspects of airway management, completed by intubation team members, are also presented. Preparations included developing a COVID-19 intubation standard operating procedure and checklist, dedicated airway trolleys, a consultant-led mobile intubation team, and an airway education programme. Tracheal intubation was successful in all patients. Intubation first-pass success rate was 85%, first-line videolaryngoscopy use 79%, oxygen desaturation 49%, and hypotension 21%. Performance was consistent across all clinical areas. The main factor impeding first-pass success was larger diameter tracheal tubes. The majority of intubations was performed by consultant anaesthetists. Nonconsultant intubations demonstrated higher oxygen desaturation rates (75% vs. 45%, p=0.610) and lower first-pass success (0% vs. 92%, p < 0.001). Survey respondents (n = 29) reported increased anxiety at the start of the pandemic, with statistically significant reduction as the pandemic progressed (median: 4/5 very high vs. 2/5 low anxiety, p < 0.001). Reported procedural/environmental challenges included performing tasks in personal protective equipment (62%), remote-site working (48%), and modification of normal practices (41%)-specifically, the use of larger diameter tracheal tubes (21%). Hypoxaemia was identified by 90% of respondents as the most challenging patient-related factor during intubations. Our findings demonstrate that a consultant-led mobile intubation team can safely perform tracheal intubation in critically ill COVID-19 patients across all clinical areas, aided by thorough preparation and training, despite heightened anxiety levels.

7.
Anesth Analg ; 131(5): 1324-1333, 2020 11.
Article in English | MEDLINE | ID: mdl-33079850

ABSTRACT

Patients with coronavirus disease 2019 (COVID-19) frequently experience a coagulopathy associated with a high incidence of thrombotic events leading to poor outcomes. Here, biomarkers of coagulation (such as D-dimer, fibrinogen, platelet count), inflammation (such as interleukin-6), and immunity (such as lymphocyte count) as well as clinical scoring systems (such as sequential organ failure assessment [SOFA], International Society on Thrombosis and Hemostasis disseminated intravascular coagulation [ISTH DIC], and sepsis-induced coagulopathy [SIC] score) can be helpful in predicting clinical course, need for hospital resources (such as intensive care unit [ICU] beds, intubation and ventilator therapy, and extracorporeal membrane oxygenation [ECMO]) and patient's outcome in patients with COVID-19. However, therapeutic options are actually limited to unspecific supportive therapy. Whether viscoelastic testing can provide additional value in predicting clinical course, need for hospital resources and patient's outcome or in guiding anticoagulation in COVID-19-associated coagulopathy is still incompletely understood and currently under investigation (eg, in the rotational thromboelastometry analysis and standard coagulation tests in hospitalized patients with COVID-19 [ROHOCO] study). This article summarizes what we know already about COVID-19-associated coagulopathy and-perhaps even more importantly-characterizes important knowledge gaps.


Subject(s)
Anti-Inflammatory Agents/therapeutic use , Anticoagulants/therapeutic use , Betacoronavirus/pathogenicity , Blood Coagulation/drug effects , Coronavirus Infections/therapy , Inflammation/therapy , Pneumonia, Viral/therapy , Pulmonary Embolism/therapy , Venous Thromboembolism/therapy , Venous Thrombosis/therapy , Anti-Inflammatory Agents/adverse effects , Anticoagulants/adverse effects , Biomarkers/blood , COVID-19 , Coronavirus Infections/blood , Coronavirus Infections/mortality , Coronavirus Infections/virology , Evidence-Based Medicine , Fibrin Fibrinogen Degradation Products/analysis , Hospital Mortality , Host-Pathogen Interactions , Humans , Inflammation/blood , Inflammation/mortality , Inflammation/virology , Inflammation Mediators/blood , Pandemics , Pneumonia, Viral/blood , Pneumonia, Viral/mortality , Pneumonia, Viral/virology , Prognosis , Pulmonary Embolism/blood , Pulmonary Embolism/mortality , Pulmonary Embolism/virology , Risk Factors , SARS-CoV-2 , Venous Thromboembolism/blood , Venous Thromboembolism/mortality , Venous Thromboembolism/virology , Venous Thrombosis/blood , Venous Thrombosis/mortality , Venous Thrombosis/virology
8.
Brain Behav Immun ; 88: 340-352, 2020 08.
Article in English | MEDLINE | ID: mdl-32240765

ABSTRACT

The activation of resident microglia and infiltrated monocytes are known potent mediators of chronic neuroinflammation following traumatic brain injury (TBI). In this study, we use a mouse model of blast-induced TBI (bTBI) to investigate whether microglia and monocytes contribute to the neuroinflammatory and behavioral consequences of bTBI. Eight-ten week old mice were subject to moderate TBI (180 kPa) in a shock tube. Using double transgenic CCR2RFP/+: CX3CR1GFP/+ mice, we were able to note that in addition to resident Cx3CR1+ microglia, infiltrating CCR2+ monocytes also contributed to the expanding macrophage population that was observed after bTBI. The microglia activation and monocyte infiltration occurred as early as 4 h and lasted up to 30d after blast exposure, suggesting chronic inflammation. The infiltration of monocytes may be partly mediated by chemokine CCL2-CCR2 signaling axis and compromised blood brain barrier permeability. Hence, bTBI-induced infiltration of monocytes and production of IL-1ß were prevented in mice lacking CCR2 (CCR2 KO). Finally, this study showed that interference of monocyte infiltration using CCR2 KO, ameliorated the chronic effects of bTBI such as anxiety-like behavior and short-term memory decline. Taken together, these data suggest that bTBI leads to activation of both resident microglia and infiltrated monocytes. The infiltration of monocytes was partly mediated by CCL2-CCR2 signaling, which in turn contributes to increased production of IL-1ß leading to behavioral deficits after bTBI. Furthermore, bTBI induced behavioral outcomes were reduced by targeting CCL2-CCR2 signaling, highlighting the significance of this signaling axis in bTBI pathology.


Subject(s)
Anxiety/etiology , Blast Injuries/complications , Brain Injuries, Traumatic/complications , Chemokine CCL2 , Monocytes , Receptors, CCR2 , Animals , Mice , Mice, Inbred C57BL , Signal Transduction
9.
Radiology ; 280(2): 398-404, 2016 Aug.
Article in English | MEDLINE | ID: mdl-26909648

ABSTRACT

Purpose To determine the relationship between pulmonary artery (PA) stiffness and both right ventricular (RV) mass and function with cardiac magnetic resonance (MR) imaging. Materials and Methods The study was approved by the local research ethics committee, and all participants gave written informed consent. Cardiac MR imaging was performed at 1.5 T in 156 healthy volunteers (63% women; age range, 19-61 years; mean age, 36.1 years). High-temporal-resolution phase-contrast imaging was performed in the main and right PAs. Pulmonary pulse wave velocity (PWV) was determined by the interval between arterial systolic upslopes. RV function was assessed with feature tracking to derive peak systolic strain and strain rate, as well as peak early-diastolic strain rate. RV volumes, ejection fraction (RVEF), and mass were measured from the cine images. The association of pulmonary PWV with RV function and mass was quantified with univariate linear regression. Interstudy repeatability was assessed with intraclass correlation. Results The repeatability coefficient for pulmonary PWV was 0.96. Increases in pulmonary PWV and RVEF were associated with increases in age (r = 0.32, P < .001 and r = 0.18, P = .025, respectively). After adjusting for age (P = .090), body surface area (P = .073), and sex (P = .005), pulmonary PWV demonstrated an independent positive association with RVEF (r = 0.34, P = .026). Significant associations were also seen with RV mass (r = 0.41, P = .004), RV radial strain (r = 0.38, P = .022), and strain rate (r = 0.35, P = .002), and independent negative associations were seen with radial (r = 0.27, P = .003), longitudinal (r = 0.40, P = .007), and circumferential (r = 0.31, P = .005) peak early-diastolic strain rate with the same covariates. Conclusion Pulmonary PWV is reliably assessed with cardiac MR imaging. In subjects with no known cardiovascular disease, increasing PA stiffness is associated with increasing age and is also moderately associated with both RV mass and function after controlling for age, body surface area, and sex. (©) RSNA, 2016 Online supplemental material is available for this article.


Subject(s)
Magnetic Resonance Imaging/methods , Pulmonary Artery/diagnostic imaging , Pulmonary Artery/physiopathology , Ventricular Dysfunction, Right/diagnostic imaging , Ventricular Dysfunction, Right/physiopathology , Adult , Female , Heart Ventricles/diagnostic imaging , Heart Ventricles/physiopathology , Humans , Male , Middle Aged , Prospective Studies , Young Adult
10.
PLoS One ; 9(9): e92909, 2014.
Article in English | MEDLINE | ID: mdl-25268495

ABSTRACT

BACKGROUND: Clenbuterol (Cl), a ß2 agonist, is associated with enhanced myocardial recovery during left ventricular assist device (LVAD) support, and exerts beneficial remodelling effects during mechanical unloading (MU) in rodent heart failure (HF). However, the specific effects of combined Cl+ß1 blockade during MU are unknown. METHODS AND RESULTS: We studied the chronic effects (4 weeks) of ß2-adrenoceptor (AR) stimulation via Cl (2 mg/kg/day) alone, and in combination with ß1-AR blockade using metoprolol ((Met), 250 mg/kg/day), on whole heart/cell structure, function and excitation-contraction (EC) coupling in failing (induced by left coronary artery (LCA) ligation), and unloaded (induced by heterotopic abdominal heart transplantation (HATx)) failing rat hearts. Combined Cl+Met therapy displayed favourable effects in HF: Met enhanced Cl's improvement in ejection fraction (EF) whilst preventing Cl-induced hypertrophy and tachycardia. During MU combined therapy was less beneficial than either mono-therapy. Met, not Cl, prevented MU-induced myocardial atrophy, with increased atrophy occurring during combined therapy. MU-induced recovery of Ca2+ transient amplitude, speed of Ca2+ release and sarcoplasmic reticulum Ca2+ content was enhanced equally by Cl or Met mono-therapy, but these benefits, together with Cl's enhancement of sarcomeric contraction speed, and MU-induced recovery of Ca2+ spark frequency, disappeared during combined therapy. CONCLUSIONS: Combined Cl+Met therapy shows superior functional effects to mono-therapy in rodent HF, but appears inferior to either mono-therapy in enhancing MU-induced recovery of EC coupling. These results suggest that combined ß2-AR simulation +ß1-AR blockade therapy is likely to be a safe and beneficial therapeutic HF strategy, but is not as effective as mono-therapy in enhancing myocardial recovery during LVAD support.


Subject(s)
Adrenergic beta-1 Receptor Antagonists/pharmacology , Adrenergic beta-2 Receptor Agonists/pharmacology , Clenbuterol/pharmacology , Heart Failure/drug therapy , Heart Transplantation , Metoprolol/pharmacology , Animals , Calcium/metabolism , Drug Therapy, Combination , Excitation Contraction Coupling/drug effects , Heart Failure/metabolism , Heart Failure/pathology , Heart Failure/physiopathology , Heart Rate/drug effects , Male , Myocardium/metabolism , Myocardium/pathology , Rats , Rats, Inbred Lew , Receptors, Adrenergic, beta-1/metabolism , Receptors, Adrenergic, beta-2/metabolism , Stroke Volume/drug effects , Transplantation, Heterotopic , Ventricular Function, Left/drug effects , Ventricular Remodeling/drug effects
11.
Cardiovasc Ther ; 31(6): e115-24, 2013 Dec.
Article in English | MEDLINE | ID: mdl-24106913

ABSTRACT

BACKGROUND AND PURPOSE: Specific Na(+) /Ca(2+) exchanger (NCX) inhibition is a potential strategy to correct reduced contractility and depleted sarcoplasmic reticulum (SR) Ca(2+) content in heart failure (HF). SN-6, a benzyloxyphenyl derivative and proposed selective NCX inhibitor, could be used for this purpose. This study aimed to evaluate the effects of SN-6 on contractility and Ca(2+) handling in normal and failing rat cardiomyocytes. EXPERIMENTAL APPROACH: HF was induced in rats by coronary artery ligation. Left ventricular myocytes were isolated and superfused with increasing concentrations of SN-6. KEY RESULTS: Sarcomere shortening, induced by field-stimulation, was reduced in amplitude with increasing concentrations of SN-6 compared with control solution. This effect was greater in failing cells. Kinetics of contractility (time to 90% peak and time to 50% relaxation) were significantly faster. Despite this, intracellular Ca(2+) transients demonstrated no change in the peak amplitude at low concentrations of SN-6, suggesting that SN-6 may affect myofilament sensitivity to Ca(2+) . Ten micro molar SN-6 significantly reduced peak Ca(2+) amplitude by 61.57% and 64.73% in normal and failing cells, respectively. Diastolic Ca(2+) was significantly increased at 1 µM SN-6. SR Ca(2+) content, assessed by rapid application of caffeine, was reduced in failing cells with 1 µM SN-6. Peak ICa , measured by whole-cell patch clamping, was significantly reduced in normal and failing myocytes at 1 µM SN-6. CONCLUSIONS AND IMPLICATIONS: Our data suggest that SN-6 is not a selective inhibitor of NCX and impairs contractility and Ca(2+) handling. Its use, together with similar putative NCX blockers, in correcting the contractile abnormalities of heart failure requires further studies.


Subject(s)
Benzyl Compounds/pharmacology , Calcium/metabolism , Heart Failure/physiopathology , Myocardial Contraction/drug effects , Myocytes, Cardiac/drug effects , Sodium-Calcium Exchanger/antagonists & inhibitors , Thiazolidines/pharmacology , Animals , Myocytes, Cardiac/physiology , Rats , Rats, Sprague-Dawley , Sarcomeres/drug effects
12.
Clin Teach ; 10(5): 291-5, 2013 Oct.
Article in English | MEDLINE | ID: mdl-24015733

ABSTRACT

BACKGROUND: Previous studies have shown peer-assisted learning (PAL) to be an effective method of teaching, with benefits to students and tutors; however, the effect of PAL in paediatrics has not been evaluated in the literature. This study aimed to evaluate a student-led paediatrics revision course for students preparing for examinations in medical specialties. METHODS: Students in their specialties year were invited to undergo a 1-day revision course consisting of a lecture and small group teaching, with a supplemental revision booklet. Tutors were recruited from the final-year cohort to facilitate the teaching. Questionnaires containing Likert-scale questions (1, strongly disagree; 5, strongly agree) were distributed before and after the course to assess its effectiveness. RESULTS: In all, 62 per cent (87/140) of students who attended the course responded to the study. Students felt significantly more prepared for their exam after the course (mean 3.47 post-course versus 2.16 pre-course), and significantly more prepared to manage children in clinical practice (mean 3.49 post-course versus 2.53 pre-course). Students rated the course as good (4.35/5), with the small group sessions deemed to be the most useful aspect. Tutors agreed that participating had improved their teaching in general (4.0/5), their confidence (4.1/5), their clinical knowledge (3.6/5) and their oral presentation skills (3.8/5). DISCUSSION: The results demonstrate an effective model for students and tutors in building vital skills in paediatrics and exam preparation. This reinforces the holistic positive attributes attainable from peer-assisted learning, and such schemes should be incorporated into undergraduate medical curricula for paediatrics to increase student confidence and potentially increase recruitment to paediatrics.


Subject(s)
Pediatrics/education , Peer Group , Educational Measurement , Humans , Learning , Students, Medical , Surveys and Questionnaires , Teaching/methods , Teaching/organization & administration
13.
Cardiovasc Res ; 97(2): 230-9, 2013 Feb 01.
Article in English | MEDLINE | ID: mdl-23079200

ABSTRACT

AIMS: Ivabradine (Iva) has shown beneficial structural and functional effects in clinical and experimental heart failure (HF), but its action in combination with mechanical unloading (MU), such as during treatment with left ventricular assist devices (LVAD), is unknown. The aim of this study was to investigate the effects of Iva during MU, in a rodent model of HF. METHODS AND RESULTS: We studied the chronic effects (4 weeks) of Iva (10 mg/kg/day) alone and in combination with MU [induced by heterotopic abdominal heart transplantation (HATx)] on whole-heart and cellular structure, function, and excitation-contraction (E-C) coupling in a rodent (rat) model of HF, 12 weeks post-left coronary artery (LCA) ligation. Effects of Iva were compared with those of ß-blockade using metoprolol [(Met), 250 mg/kg/day]. Iva, but not Met, reversed myocardial fibrosis, alone and in combination with MU. MU-induced restoration of deranged E-C coupling was enhanced by Iva to a greater extent than Met: both Iva and Met enhanced the recovery of the Ca(2+) transient amplitude and the sarcoplasmic reticulum (SR) Ca(2+) content, but Iva alone maintained MU-induced normalization of L-type Ca(2+) current and t-tubule abnormalities. Met prevented MU-induced reduction in the myocardial size (myocardial atrophy); Iva had no effect on this parameter. CONCLUSION: Iva shows beneficial structural and E-C coupling effects during MU: Iva reverses myocardial fibrosis and enhances the restoration of deranged E-C coupling, displaying more beneficial effects than that of Met. These results suggest that Iva may prove effective in enhancing functional recovery in heart failure patients receiving LVAD therapy.


Subject(s)
Benzazepines/pharmacology , Heart Failure/therapy , Heart-Assist Devices , Ventricular Remodeling/drug effects , Animals , Atrophy , Benzazepines/therapeutic use , Calcium/metabolism , Calcium Channels, L-Type/physiology , Excitation Contraction Coupling/drug effects , Fibrosis , Heart Failure/physiopathology , Heart Rate/drug effects , Heart Transplantation , Ivabradine , Metoprolol/pharmacology , Myocardium/pathology , Rats
14.
Interact Cardiovasc Thorac Surg ; 15(4): 750-5, 2012 Oct.
Article in English | MEDLINE | ID: mdl-22761122

ABSTRACT

A best evidence topic was constructed according to a structured protocol. The question addressed was 'Does perioperative furosemide usage reduce the need for renal replacement therapy in cardiac surgery patients?' Forty-seven papers were found using the reported search, of which 10 represented the best evidence to answer the clinical question. The authors, journal, date and country of publication, patient group studied, study type, relevant outcomes and results of these papers are tabulated. Current best available evidence to resolve the issue includes a systematic review and nine randomized controlled trials (RCTs). The systematic review of seven RCTs and one observational study has demonstrated that in patients who have undergone cardiac surgery, a more consistent and sustained diuresis is produced by a continuous infusion of furosemide compared with intermittent bolus doses of furosemide. However, there does not appear to be a significant difference in the total urine output or a change in serum electrolyte levels when furosemide is administered as a continuous infusion compared with intermittent bolus doses. Three RCTs recruiting neonatal and paediatric patients after open heart surgery also validated the safety and efficacy of furosemide infusion as well as intermittent bolus doses. Two of the five RCTS in adult cardiac surgery patients showed that furosemide infusion was associated with a reduced need for renal replacement therapy (RRT), while two RCTs failed to show any benefit and one reported an increased incidence of renal impairment. We conclude that continuous furosemide infusion in the perioperative period promotes a gentle and sustained diuresis in cardiac surgery patients. The evidence supporting the benefit of this strategy in terms of reducing the need for RRT is weak. At the same time, current best available evidence, albeit from small RCTs, suggests that the timely introduction of continuous furosemide infusion does not increase the incidence of renal impairment after cardiac surgery.


Subject(s)
Acute Kidney Injury/prevention & control , Acute Kidney Injury/therapy , Cardiac Surgical Procedures/adverse effects , Diuretics/administration & dosage , Furosemide/administration & dosage , Renal Replacement Therapy , Acute Kidney Injury/etiology , Aged , Benchmarking , Drug Administration Schedule , Evidence-Based Medicine , Female , Humans , Infusions, Parenteral , Male , Perioperative Care , Time Factors , Treatment Outcome
15.
Cardiovasc Res ; 87(4): 683-93, 2010 Sep 01.
Article in English | MEDLINE | ID: mdl-20413651

ABSTRACT

AIMS: The genetic background is currently under close scrutiny when determining cardiovascular disease progression and response to therapy. However, this factor is rarely considered in physiological studies, where it could influence the normal behaviour and adaptive responses of the heart. We aim to test the hypothesis that genetic strain variability is associated with differences in excitation-contraction coupling mechanisms, in particular those involved in cytoplasmic Ca(2+) regulation, and that they are concomitant to differences in whole-heart function and cell morphology. METHODS AND RESULTS: We studied 8- to 10-week-old male C57BL/6, BALB/C, FVB, and SV129 mice. Echocardiography and radiotelemetry were used to assess cardiac function in vivo. FVB mice had increased left ventricular ejection fraction and fractional shortening with significantly faster heart rate (HR) and lack of diurnal variation of HR. Confocal microscopy, sarcomere length tracking, and epifluorescence were used to investigate cell volume, t-tubule density, contractility, and Ca(2+) handling in isolated ventricular myocytes. Sarcomere relaxation and time-to-peak of the Ca(2+) transient were prolonged in BALB/C myocytes, with more frequent Ca(2+) sparks and significantly higher sarcoplasmic reticulum (SR) Ca(2+) leak. There were no strain differences in the contribution of different Ca(2+) extrusion mechanisms. SV129 had reduced SR Ca(2+) leak with elevated SR Ca(2+) content and smaller cell volume and t-tubule density compared with myocytes from other strains. CONCLUSION: These results demonstrate that a different genetic background is associated with physiological differences in cardiac function in vivo and differences in morphology, contractility, and Ca(2+) handling at the cellular level.


Subject(s)
Calcium/metabolism , Excitation Contraction Coupling/genetics , Myocardium/metabolism , Ventricular Function, Left/genetics , Animals , Cell Size , Circadian Rhythm/genetics , Electrocardiography , Genotype , Heart Rate/genetics , Heart Ventricles/diagnostic imaging , Heart Ventricles/metabolism , Male , Mice , Mice, Inbred BALB C , Mice, Inbred C57BL , Microscopy, Confocal , Myocardial Contraction/genetics , Phenotype , Sarcoplasmic Reticulum/metabolism , Species Specificity , Stroke Volume/genetics , Telemetry , Ultrasonography
16.
Vasc Endovascular Surg ; 44(4): 274-8, 2010 May.
Article in English | MEDLINE | ID: mdl-20308166

ABSTRACT

OBJECTIVE: To evaluate patient satisfaction following endothermal ablation for varicose veins (VVs). METHODS: A 12-question survey was sent to consecutive patients treated with endothermal ablation--questions related to preprocedure symptoms, recurrence, further treatments, and patient satisfaction. RESULTS: Questionnaires sent a median 12 (range 6-22) months postintervention were returned by 177 (60.0%) of 295 patients; 63 (35.6%) of 177 received treatment for recurrent VVs. Preintervention symptoms included aching (141 [79.7%] of 177), swelling (86 [48.6%] of 177), and heaviness (72 [40.7%] of 177). Improvements in preoperative symptoms were reported by 82.5% (146 of 177). Postintervention recurrence was reported by 87 (49.4%) of 177; 61 (70.1%) of 87 reported a few recurrent varicosities only. Further treatment was required by 11 (6.2%) of 177; 79 (44.6%) of 177 of patients reported no complications. The majority (151 [85.8%] of 176) were satisfied with their treatment. In all, 16 (25.4%) of 62 of patients treated for recurrent VVs were dissatisfied versus 9 (7.9%) of 114 of those with primary VVs (P = .0026). CONCLUSIONS: The majority of patients are satisfied with results following endothermal ablation. Dissatisfaction may be more likely following treatment for recurrent VVs.


Subject(s)
Catheter Ablation , Laser Therapy , Patient Satisfaction , Varicose Veins/surgery , Catheter Ablation/adverse effects , Female , Health Care Surveys , Humans , Laser Therapy/adverse effects , Male , Recurrence , Reoperation , Stockings, Compression , Surveys and Questionnaires , Time Factors , Treatment Outcome , Varicose Veins/complications , Vascular Surgical Procedures
17.
Indian J Urol ; 26(4): 507-10, 2010 Oct.
Article in English | MEDLINE | ID: mdl-21369381

ABSTRACT

AIMS: Objective of this study was to assess the feasibility and results of preputial reconstruction and tubularized incised plate urethroplasty (TIP) in patients of proximal hypospadias with ventral penile curvature. MATERIALS AND METHODS: Twenty-seven patients of proximal hypospadias who underwent preputioplasty with TIP were evaluated retrospectively. Ventral curvature was corrected by mobilization of the urethral plate with the corpus spongiosum and the proximal urethra; dorsal plication was added according to the severity of curvature. Feasibility of preputial reconstruction was assessed by applying 3 stay sutures-the first to fix the skin at the corona, the second at the junction of the inner and outer preputial skin for pulling up the skin over the glans, and the third stay on penile skin at the level of the corona for retracting the skin. Preputial reconstruction consisted of a standard 3 layered re-approximation of the margins of the dorsal hood. RESULTS: Age of the patients varied from 10 months to 21 years with an average of 6 years and 4 months. Ventral curvature (mild 10, moderate 13, and severe 4 cases) was corrected by the mobilization of the urethral plate and spongiosum in 14 patients, 11 cases had mobilization of the proximal urethra in addition and 2 patients required single stitch dorsal plication with the above-mentioned steps. Two patients developed urethral fistula and 1 had preputial dehiscence. CONCLUSIONS: Preputioplasty with TIP is feasible in proximal hypospadias with curvature without increasing the complication rate. Postoperative phimosis can be prevented by on-table testing of the adequacy of preputial skin by 3 stay sutures.

18.
Indian J Pathol Microbiol ; 52(1): 108-9, 2009.
Article in English | MEDLINE | ID: mdl-19136800

ABSTRACT

In neuropathology, anatomic landmarks and topographic relationships bear particularly on issues of differential diagnosis. A case of central neurocytoma of the vermis of the cerebellum is being reported in this article. A 45-year-old male with features of hydrocephalous and a posterior fossa space-occupying lesion was diagnosed as having central neurocytoma upon a microscopy of Hematoxylene and Eosin stained sections. The diagnosis was confirmed by a positive immunohistochemical reaction for Neuron Specific Enolase (NSE) and Synaptophysin. This case report is being made to emphasize that a high index of suspicion is required even for reporting neuropathology where the site does not match the conventional location of the lesion seen and also to emphasize the importance of immunohistochemistry in proving such unusually located lesions.


Subject(s)
Brain Neoplasms/diagnosis , Brain Neoplasms/pathology , Cerebellum/pathology , Neurocytoma/diagnosis , Neurocytoma/pathology , Animals , Humans , Male , Middle Aged
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