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1.
J Drugs Dermatol ; 23(5): 306-310, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38709694

RESUMO

BACKGROUND: There are no guidelines on when to more strongly recommend sentinel lymph node biopsy (SLNB) for T1b melanomas. OBJECTIVE: To examine whether anatomic locations of T1b melanomas and patient age influence metastases. METHODS: We conducted a retrospective study using data from two hospitals in Los Angeles County from January 2010 through January 2020. RESULTS: Out of 620 patients with primary melanomas, 566 melanomas were staged based on the American Joint Committee on Cancer 8th edition melanoma staging. Forty-one were T1b, of which 13 were located on the face/ear/scalp and 28 were located elsewhere. T1b melanomas located on the face/ear/scalp had an increased risk of lymph node or distant metastasis compared with other anatomic sites (31% vs 3.6%, P=0.028). For all melanomas, the risk of lymph node or distant metastasis decreased with age of 64 years or greater (P<0.001 and P=0.034). For T1b melanomas, the risk of distant metastasis increased with increasing age (P=0.047). LIMITATIONS: Data were from a single county.  Conclusion: T1b melanomas of the face/ear/scalp demonstrated a higher risk of lymph node or distant metastasis and may help guide the recommendation of SLNB, imaging, and surveillance. Younger patients may be more strongly considered for SLNB and older patients with T1b melanomas may warrant imaging.  J Drugs Dermatol. 2024;23(5):306-310. doi:10.36849/JDD.7667.


Assuntos
Metástase Linfática , Melanoma , Estadiamento de Neoplasias , Biópsia de Linfonodo Sentinela , Neoplasias Cutâneas , Humanos , Melanoma/patologia , Melanoma/diagnóstico , Melanoma/epidemiologia , Estudos Retrospectivos , Feminino , Neoplasias Cutâneas/patologia , Neoplasias Cutâneas/diagnóstico , Neoplasias Cutâneas/epidemiologia , Masculino , Pessoa de Meia-Idade , Idoso , Fatores Etários , Metástase Linfática/diagnóstico , Adulto , Idoso de 80 Anos ou mais , Los Angeles/epidemiologia , Adulto Jovem
2.
JACC Case Rep ; 29(6): 102236, 2024 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-38549855

RESUMO

Hypertrophic cardiomyopathy is the most common inherited cardiomyopathy, with a prevalence of 1:200 to 1:500. Cardiac amyloidosis, another cardiomyopathy caused by myocardial deposition of abnormally folded TTR protein, can be acquired or hereditary. The presence of pathogenic TTR gene variants in patients with phenotypic HCM is an underrecognized and clinically important entity.

3.
JACC Cardiovasc Imaging ; 17(2): 128-145, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37410010

RESUMO

BACKGROUND: Cardiac magnetic resonance (CMR) differentiates cardiac metastasis (CMET) and cardiac thrombus (CTHR) based on tissue characteristics stemming from vascularity on late gadolinium enhancement (LGE). Perfusion CMR can assess magnitude of vascularity; utility for cardiac masses (CMASS) is unknown. OBJECTIVES: This study sought to determine if perfusion CMR provides diagnostic and prognostic utility for CMASS beyond binary differentiation of CMET and CTHR. METHODS: The population comprised adult cancer patients with CMASS on CMR; CMET and CTHR were defined using LGE-CMR: CMASS+ patients were matched to CMASS- control subjects for cancer type/stage. First-pass perfusion CMR was interpreted visually and semiquantitatively for CMASS vascularity, including contrast enhancement ratio (CER) (plateau vs baseline) and contrast uptake rate (CUR) (slope). Follow-up was performed for all-cause mortality. RESULTS: A total of 462 cancer patients were studied, including patients with (CMET = 173, CTHR = 69) and without CMASS on LGE-CMR. On perfusion CMR, CER and CUR were higher within CMET vs CTHR (P < 0.001); CUR yielded better performance (AUC: 0.89-0.93) than CER (AUC: 0.66-0.72) (both P < 0.001) to differentiate LGE-CMR-evidenced CMET and CTHR, although both CUR (P = 0.10) and CER (P = 0.01) typically misclassified CMET with minimal enhancement. During follow-up, mortality among CMET patients was high but variable; 47% of patients were alive 1 year post-CMR. Patients with semiquantitative perfusion CMR-evidenced CMET had higher mortality than control subjects (HR: 1.42 [95% CI: 1.06-1.90]; P = 0.02), paralleling visual perfusion CMR (HR: 1.47 [95% CI: 1.12-1.94]; P = 0.006) and LGE-CMR (HR: 1.52 [95% CI: 1.16-2.00]; P = 0.003). Among patients with CMET on LGE-CMR, mortality was highest among patients (P = 0.002) with lesions in the bottom perfusion (CER) tertile, corresponding to low vascularity. Among CMET and cancer-matched control subjects, mortality was equivalent (P = NS) among patients with lesions in the upper CER tertile (corresponding to higher lesion vascularity). Conversely, patients with CMET in the middle (P = 0.03) and lowest (lowest vascularity) (P = 0.001) CER tertiles had increased mortality. CONCLUSIONS: Perfusion CMR yields prognostic utility that complements LGE-CMR: Among cancer patients with LGE-CMR defined CMET, mortality increases in proportion to magnitude of lesion hypoperfusion.


Assuntos
Meios de Contraste , Neoplasias Cardíacas , Humanos , Adulto , Prognóstico , Valor Preditivo dos Testes , Gadolínio , Neoplasias Cardíacas/diagnóstico por imagem , Espectroscopia de Ressonância Magnética , Perfusão , Medição de Risco , Imagem Cinética por Ressonância Magnética
4.
Semin Ophthalmol ; 39(3): 229-234, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37938027

RESUMO

BACKGROUND: Ophthalmology residency programs are highly competitive and each year there are many unmatched reapplicants who must make time-sensitive decisions on how to prepare for their reapplication. Our analysis of reapplication factors will be the first evidence-based guide to reapplying ophthalmology. OBJECTIVE: To determine the components of a reapplicants application that contribute and that do not contribute to ophthalmology residency match success. METHODS: Eighty-eight total reapplicants to Dell Medical School's Department of Ophthalmology residency program for the year of 2022 and 2023 were analyzed in a retrospective review in 2023 based on their San Francisco match applications. We assessed match success in the context of demographics, academic performance, cognitive measures, letters of recommendation, personal statements, and extracurricular activities. RESULTS: Of 84 reapplicants who completed the San Francisco Match, 41 matched successfully (48.8%). Factors that significantly affected match success include quantity of LORs written by ophthalmologists (P = .0143), choice of interim year activity (p = .0019), and Step 2 Clinical Knowledge score (P = .0017). Our findings demonstrate that noncontributory factors to reapplicant match rate include number of publications during research years, demographics, clinical grades, Alpha Omega Alpha (AOA) membership, LOR qualities, and Step 1 score. CONCLUSIONS: Ophthalmology residency reapplicants should focus their efforts on finding a research year or established pre-ophthalmology residency program for their interim year and bolstering their letters of recommendations within the field. The quality of in-specialty relationships and letters of recommendation are more impactful than the number of publications during a research gap year. Step 2 CK score is a significant factor but would have already been determined by the time of reapplication. Metrics such as Step 1 scores, AOA status, number of volunteering experiences, and LOR and personal statement qualities had no effect on a reapplicant's chance of matching.


Assuntos
Internato e Residência , Oftalmologia , Humanos , Estudos Retrospectivos , Oftalmologia/educação
5.
Am J Cardiol ; 210: 249-255, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-37884115

RESUMO

Sacubitril-valsartan, an angiotensin receptor-neprilysin inhibitor, reduces all-cause mortality and the rate of heart failure hospitalizations in patients with heart failure with reduced ejection fraction. This study aimed to elucidate the benefits of initiating sacubitril-valsartan on ventricular remodeling in patients previously optimized on guideline-directed medical therapy. In this prospective, single-arm longitudinal study, 40 patients with heart failure with reduced ejection fraction who were optimized on guideline-directed medical therapy were transitioned to sacubitril-valsartan. The primary end point was the change in left ventricular (LV) volume at 1 year as assessed by 3-dimensional transthoracic echocardiography. Other echocardiographic end points included change in LV-function and change in right ventricular (RV) size and function. The mean age was 55 ± 12 years, and 63% were male. At 1 year, LV end-diastolic volume decreased from 242 ± 71 to 157 ± 57 ml (p <0.001) with a corresponding increase in LV ejection fraction from 32 ± 7% to 44 ± 9% (p <0.001). RV end-diastolic volume decreased from 151 ± 51 to 105 ±45 ml (p <0.001). Although RV ejection fraction did not change (51 ± 8 vs 51 ± 10; p = 0.35), RV global longitudinal strain improved from -14.9 ± 3.4 % to -19.3 ± 4.3% (p <0.001). When added to standard medical therapy for heart failure, sacubitril-valsartan induces significant remodeling of both the right and left ventricles as assessed by 3-dimensional echocardiography.


Assuntos
Insuficiência Cardíaca , Disfunção Ventricular Esquerda , Humanos , Masculino , Adulto , Pessoa de Meia-Idade , Idoso , Feminino , Estudos Longitudinais , Estudos Prospectivos , Tetrazóis/uso terapêutico , Antagonistas de Receptores de Angiotensina/uso terapêutico , Antagonistas de Receptores de Angiotensina/farmacologia , Resultado do Tratamento , Valsartana/farmacologia , Insuficiência Cardíaca/diagnóstico por imagem , Insuficiência Cardíaca/tratamento farmacológico , Aminobutiratos/uso terapêutico , Aminobutiratos/farmacologia , Combinação de Medicamentos , Função Ventricular Esquerda , Volume Sistólico
6.
J Cataract Refract Surg ; 49(11): 1183-1186, 2023 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-37867287

RESUMO

A 33-year-old woman with a prior history of small-incision lenticule extraction (SMILE) presented with gradual deterioration of vision in her right eye since the surgery. She had undergone bilateral SMILE for myopic correction (-7.00 diopters [D] in the right eye and -6.00 D in the left eye) 3 weeks prior. SMILE was performed with a Zeiss VisuMax femtosecond laser system, with a cap thickness of 120 µm, a cap diameter of 7.50 mm, and a lenticule diameter of 6.50 mm. At the completion of the surgery, loose epithelium was noted at the SMILE incision bilaterally, and bandage contact lenses were placed in both eyes. On the first postoperative day, the patient's uncorrected distance visual acuity (UDVA) was 20/40 in both eyes. The bandage lenses were removed from both eyes, with the epithelium intact. At the first-week postoperative visit, her visual acuity was recorded as 20/30 in the right eye and 20/20 in the left eye. She noticed her vision in the right eye was not as sharp as that in her left eye. She denied experiencing any pain, redness, or ocular surface irritations. She was advised to return to the clinic for a 1-month postoperative visit and continue with aggressive lubrication in both eyes. However, a week later, the patient returned for an emergency visit, citing significant central visual distortion in the right eye and difficulty working on the computer. At this visit, her UDVA and corrected distance visual acuity (CDVA) was 20/50 in the right eye and 20/15 in the left eye at both near and far distances. A slitlamp examination revealed mild central changes in the right eye. She once again denied any pain, redness, or irritation. She was advised to continue with artificial tears and return to the office in 1 week for further observation of the central distortion in her right eye. Upon returning to the clinic at the third postoperative week, the patient still complained of central visual changes in the right eye, with a visual acuity of 20/70. Further slitlamp examination revealed a nonspecific central haze in the same eye, but there was no corneal staining or signs of epithelial defects. Anterior segment ocular coherence tomography (AS-OCT) and NIDEK topography were performed, showing the same central distortion in the right eye (Figures 1 and 2JOURNAL/jcrs/04.03/02158034-202311000-00016/figure1/v/2023-10-18T004638Z/r/image-tiffJOURNAL/jcrs/04.03/02158034-202311000-00016/figure2/v/2023-10-18T004638Z/r/image-tiff). Based on the examination and images provided, what is your working medical diagnosis? What other medical conditions are in your differential diagnosis? What medical and/or surgical interventions would you recommend, if any?


Assuntos
Cirurgia da Córnea a Laser , Refração Ocular , Humanos , Feminino , Adulto , Substância Própria/cirurgia , Topografia da Córnea , Lasers de Excimer , Tomografia de Coerência Óptica , Cirurgia da Córnea a Laser/efeitos adversos , Cirurgia da Córnea a Laser/métodos , Dor
7.
J Cardiothorac Surg ; 18(1): 288, 2023 Oct 12.
Artigo em Inglês | MEDLINE | ID: mdl-37828522

RESUMO

BACKGROUND: Tricuspid regurgitation(TR) following heart transplantation could adversely affect clinical outcomes. In an effort to reduce the incidence of TR, prophylactic donor heart tricuspid valve annuloplasty has been performed during heart transplantation in our institution. We assessed early and long-term outcomes. METHODS: Between August 2011 and August 2021, 349 patients who underwent prophylactic tricuspid valve annuloplasty were included. Tricuspid valve annuloplasty was performed using the DeVega annuloplasty technique. The clinical outcomes of the interests included complete atrioventricular block requiring pacemaker implantation, the occurrence of significant TR(defined as moderate or greater), and survival. Long-term survival was compared in patients with and without significant TR using the Kaplan-Meier method. The Cox proportional hazards regression with time-dependent covariate analysis was used to see if significant TR affected the long-term survival. RESULTS: There was one patient(0.3%) who required pacemaker implantation for complete atrioventricular block. No patients developed tricuspid valve stenosis that required intervention. Significant TR developed in 31 patients(8.9%) during the follow-up period. The survival rate of patients who developed significant TR was significantly lower than that of those who did not(log rank < 0.01). Significant TR was associated with the long-term mortality(HR2.92, 95%CI 1.47-5.82, p < 0.01). CONCLUSIONS: Prophylactic donor heart tricuspid valve annuloplasty has the potential to reduce the occurrence of significant TR and can be performed safely. The significant TR that developed in patients with prophylactic annuloplasty negatively affected survival and was an independent predictor of long-term mortality.


Assuntos
Bloqueio Atrioventricular , Anuloplastia da Valva Cardíaca , Transplante de Coração , Implante de Prótese de Valva Cardíaca , Insuficiência da Valva Tricúspide , Humanos , Valva Tricúspide/cirurgia , Transplante de Coração/efeitos adversos , Estudos Retrospectivos , Doadores de Tecidos , Insuficiência da Valva Tricúspide/cirurgia , Insuficiência da Valva Tricúspide/etiologia , Anuloplastia da Valva Cardíaca/efeitos adversos , Implante de Prótese de Valva Cardíaca/métodos , Resultado do Tratamento
8.
Artigo em Inglês | MEDLINE | ID: mdl-37421402

RESUMO

OBJECTIVES: It remains unknown if the left atrial appendage closure (LAAC) at the time of left ventricular assist device (LVAD) surgery can reduce ischaemic cerebrovascular accidents. METHODS: Consecutive 310 patients who underwent LVAD surgery with HeartMate II or 3 between January 2012 and November 2021 were included in this study. The cohort was divided into 2 groups: patients with LAAC (group A) and without LAAC (group B). We compared the clinical outcomes including the incidence of cerebrovascular accident between 2 groups. RESULTS: Ninety-eight patients were included in group A, and 212 patients in group B. There were no significant differences between 2 groups in age, preoperative CHADS2 score and history of atrial fibrillation. In-hospital mortality did not differ significantly between the 2 groups (group A: 7.1%, group B: 12.3%, P = 0.16). Thirty-seven patients (11.9%) experienced ischaemic cerebrovascular accident (5 patients in group A and 32 patients in group B). The cumulative incidence from ischaemic cerebrovascular accidents in group A (5.3% at 12 months and 5.3% at 36 months) was significantly lower than that in group B (8.2% at 12 months and 16.8% at 36 months; P = 0.017). In a multivariable competing risk analysis, LAAC was associated with reducing ischaemic cerebrovascular accidents (hazard ratio 0.38, 95% confidence interval 0.15-0.97, P = 0.043). CONCLUSIONS: Concomitant LAAC in LVAD surgery can reduce ischaemic cerebrovascular accidents without increasing perioperative mortality and complications.

9.
ASAIO J ; 69(8): 742-748, 2023 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-37134003

RESUMO

The purpose of this study was to describe the changes in plasma levels of angiogenic and inflammatory biomarkers, specifically Ang-2 and TNF-α, in patients receiving HeartMate II (HMII) left ventricular assist device (LVAD) and correlate them with nonsurgical bleeding. It has been shown that angiopoietin-2 (Ang-2) and tissue necrosis factor-α (TNF-α) may be linked to bleeding in LVAD patients. This study utilized biobanked samples prospectively collected from the PREVENT study, a prospective, multicenter, single-arm, nonrandomized study of patients implanted with HMII. Paired serum samples were obtained in 140 patients before implantation and at 90 days postimplantation. Baseline demographics were as follows: age 57 ± 13 years, 41% had ischemic etiology, 82% male, and 75% destination therapy indication. In the 17 patients with baseline elevation of both TNF-α and Ang-2, 10 (60%) experienced a significant bleeding event within 180 days postimplant compared with 37 of 98 (38%) patients with Ang-2 and TNF-α below the mean ( p = 0.02). The hazard ratio for a bleeding event was 2.3 (95% CI: 1.2-4.6) in patients with elevated levels of both TNF-α and Ang-2. In the PREVENT multicenter study, patients with elevations in serum Angiopoietin-2 and TNF-α at baseline before LVAD implantation demonstrated increased bleeding events after LVAD implantation.


Assuntos
Insuficiência Cardíaca , Coração Auxiliar , Humanos , Masculino , Adulto , Pessoa de Meia-Idade , Idoso , Feminino , Fator de Necrose Tumoral alfa , Angiopoietina-2 , Estudos Prospectivos , Coração Auxiliar/efeitos adversos , Tromboplastina , Hemorragia/etiologia , Necrose/complicações , Insuficiência Cardíaca/cirurgia , Insuficiência Cardíaca/complicações , Estudos Retrospectivos
10.
J Cataract Refract Surg ; 49(4): 443, 2023 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-36975015

RESUMO

A 24-year-old woman presented with a 7-day history of blurry vision, redness, and extreme pain in her right eye. She had no pertinent medical or ocular history and did not use spectacles or contacts. Uncorrected distance visual acuity (UDVA) was 20/40 in the right eye and could not be improved with refraction. Slitlamp examination revealed a 1.5 × 1.5 mm central epithelial defect with surrounding white blood cell recruitment. Confocal microscopy (Figure 1JOURNAL/jcrs/04.03/02158034-202304000-00020/figure1/v/2023-03-24T200747Z/r/image-tiff) was performed, and she was treated with chlorhexidine 0.02% drops every hour in the right eye. 2 weeks later, the cornea had completely re-epithelialized; however, persistent corneal haze, decreased visual acuity, and corneal thinning and flattening was noted. Pachymetry was 484 µm in the right eye and UDVA was 20/40 (Supplemental Figure 1, available at http://links.lww.com/JRS/A836). In the following 2 weeks, UDVA improved to 20/25. 6 months after the initial presentation, UDVA was unchanged and faint central corneal haze was noted on examination (Figure 2JOURNAL/jcrs/04.03/02158034-202304000-00020/figure2/v/2023-03-24T200747Z/r/image-tiff). Of interest, her family history is significant for her younger 16-year-old brother with 3 prior episodes of a similar type of keratitis/keratopathy over the course of 2 years in both eyes with similar central paracentral corneal haze, thinning, and flattening and similar confocal findings (Figure 3JOURNAL/jcrs/04.03/02158034-202304000-00020/figure3/v/2023-03-24T200747Z/r/image-tiff). He also was unresponsive to topical antibiotics and antivirals except topical chlorhexidine. Her brother has been our patient for the last several years prior to her first visit to our clinic. What is your diagnosis? What medical diagnostic tests, if any, would you recommend? Is this an infectious or simply an inflammatory response? Is there any genetic or familial predisposition?


Assuntos
Clorexidina , Opacidade da Córnea , Ceratite , Adulto , Feminino , Humanos , Clorexidina/administração & dosagem , Clorexidina/uso terapêutico , Córnea/patologia , Opacidade da Córnea/diagnóstico , Opacidade da Córnea/tratamento farmacológico , Ceratite/diagnóstico , Ceratite/tratamento farmacológico , Refração Ocular
11.
BMC Ophthalmol ; 23(1): 10, 2023 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-36604657

RESUMO

PURPOSE: To compare the intra-device repeatability and inter-device reproducibility between two anterior segment imaging instruments, the CASIA SS-1000 (Tomey Corp., Nagoya, Japan) and Pentacam (OCULUS, Arlington, WA) in measuring anterior segment parameters. METHODS: Single-center, prospective clinical trial. Participants ≥20 years of age were included. One eye was randomly selected, each imaged by three CASIA SS-1000 devices and three Pentacam devices by three different examiners. Each photographer operated a pair of devices, one CASIA SS-1000 and one Pentacam. The image order for each participant was determined by a random permutation table. Three images were taken from each device. A total of 18 images were taken for each eye. Ratios of the standard deviations, referenced as (CASIA/Pentacam), were calculated to compare the repeatability and reproducibility of the two imaging instruments. RESULTS: In all, 66 participants with a mean age of 46.4 years (±21.7) were enrolled in the study. All repeatability ratios and intra-device variability were less than 1 (anterior corneal curvature: flat = 0.86, steep = 0.85; posterior corneal curvature: flat = 0.43, steep = 0.61; and map: thinnest = 0.22; central = 0.24, 2 mm = 0.26, 4 mm = 0.27, and 6 mm = 0.30). All reproducibility ratios, which measure the inter-device variability, were less than 1 (anterior corneal curvature: flat = 0.58, steep = 0.73; posterior corneal curvature: flat = 0.25, steep = 0.31; and pachymetry map: thinnest = 0.20; central = 0.20; 2 mm = 0.20; 4 mm = 0.19; and 6 mm = 0.22). A ratio of less than 1 indicates that the CASIA SS-1000 has more consistent measurements. CONCLUSIONS: The CASIA SS-1000 was found to have better repeatability and reproducibility compared to the Pentacam for both corneal curvature and pachymetry maps. This greater consistency may require further study to determine whether the decreased variability can be translated into improved clinical results.


Assuntos
Segmento Anterior do Olho , Córnea , Humanos , Pessoa de Meia-Idade , Córnea/diagnóstico por imagem , Córnea/cirurgia , Paquimetria Corneana , Topografia da Córnea/métodos , Estudos Prospectivos , Reprodutibilidade dos Testes , Tomografia de Coerência Óptica
12.
FASEB J ; 37(1): e22674, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36520015

RESUMO

Secondary lymphedema is a debilitating disease characterized by abnormal soft tissue swelling and caused by lymphatic system dysfunction. Despite a high prevalence of secondary lymphedema after cancer treatments, current management is supportive and there are no approved therapeutic agents that can thwart disease progression. We have previously demonstrated that 9-cis-retinoic acid (9-cisRA) has the potential to be repurposed for lymphedema as it mitigates disease by promoting lymphangiogenesis at the site of lymphatic injury. Although the efficacy of 9-cisRA has been demonstrated in previous studies, the mechanism of action is not completely understood. In this study, we demonstrate that when RXRα is specifically deleted in lymphatic endothelial cells, 9-cisRA fails to induce lymphangiogenesis in vitro and prevent pathologic progression of postsurgical lymphedema in vivo. These findings demonstrate that downstream nuclear receptor RXRα plays a critical role in the therapeutic efficacy of 9-cisRA in postsurgical lymphedema.


Assuntos
Vasos Linfáticos , Linfedema , Humanos , Linfangiogênese , Alitretinoína/uso terapêutico , Células Endoteliais/patologia , Linfedema/etiologia , Linfedema/prevenção & controle , Linfedema/patologia , Vasos Linfáticos/patologia
13.
Plast Reconstr Surg ; 151(1): 85-95, 2023 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-36205692

RESUMO

BACKGROUND: Silicone breast implants with smooth outer shells are associated with higher rates of capsular contracture, whereas textured implants have been linked to the development of breast implant-associated anaplastic large cell lymphoma. By assessing the gene expression profile of fibrous capsules formed in response to smooth and textured implants, insight into the development of breast implant-associated abnormalities can be gained. METHODS: Miniature smooth or textured silicone implants were surgically inserted into female rats ( n = 10) and harvested for the surrounding capsules at postoperative week 6. RNA sequencing and quantitative polymerase chain reaction were performed to identify genes differentially expressed between smooth and textured capsules. For clinical correlation, the expression of candidate genes was assayed in implant capsules harvested from human patients with and without capsular contracture. RESULTS: Of 18,555 differentially expressed transcripts identified, three candidate genes were selected: matrix metalloproteinase-3 ( MMP3 ), troponin-T3 ( TNNT3 ), and neuregulin-1 ( NRG1 ). In textured capsules, relative gene expression and immunostaining of MMP3 and TNNT3 was up-regulated, whereas NRG1 was down-regulated compared to smooth capsules [mean relative fold change, 8.79 ( P = 0.0059), 4.81 ( P = 0.0056), and 0.40 ( P < 0.0001), respectively]. Immunostaining of human specimens with capsular contracture revealed similar gene expression patterns to those of animal-derived smooth capsules. CONCLUSIONS: An expression pattern of low MMP3 /low TNNT3 /high NRG1 is specifically associated with smooth implant capsules and human implant capsules with capsular contracture. The authors' clinically relevant breast implant rat model provides a strong foundation to further explore the molecular genetics of implant texture and its effect on breast implant-associated abnormalities. CLINICAL RELEVANCE STATEMENT: The authors have demonstrated that there are distinct gene expression profiles in response to smooth versus textured breast implants. Since surface texture may be linked to implant-related pathology, further molecular analysis of periprosthetic capsules may yield strategies to mitigate implant-related complications.


Assuntos
Doenças Mamárias , Implantes de Mama , Contratura , Humanos , Feminino , Ratos , Animais , Implantes de Mama/efeitos adversos , Metaloproteinase 3 da Matriz , Cápsulas , Complicações Pós-Operatórias , Silicones , Expressão Gênica
14.
Dermatol Surg ; 48(12): 1354-1355, 2022 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-36449877
15.
Dermatol Online J ; 28(3)2022 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-36259803

RESUMO

Lucio phenomenon is a rare vasculopathy that can occur in patients with Hansen disease, particularly diffuse lepromatous leprosy. It is characterized by retiform purpura and necrotic ulcerations, most commonly affecting the extremities. Diagnosing Lucio phenomenon can be challenging, especially when secondary bacterial infections occur. We report a patient with Lucio phenomenon who presented with acute necrotizing fasciitis of his left upper extremity and a 10-year history of chronic ulcerations. Shortly following admission, he also developed acute kidney injury. The necrotizing fasciitis was treated with prompt surgical debridement and intravenous antibiotics. Biopsy and PCR of a right upper extremity ulcer confirmed the presence of Mycobacterium lepromatosis. Multidrug therapy and prednisone were used to treat the Lucio phenomenon. After initiating treatment, no new lesions developed, kidney function improved, and the patient underwent successful skin graft of his left upper extremity. Although corticosteroid use is controversial, our patient's marked response to multidrug therapy with prednisone highlights the importance of this regimen in severe presentations of Lucio phenomenon. To the best of our knowledge, only two other cases of Lucio phenomenon confirmed to be caused by M. lepromatosis have been reported in living patients (rather than retrospectively identified post-mortem), underscoring the importance of the presented clinical course and treatment regimen.


Assuntos
Injúria Renal Aguda , Fasciite Necrosante , Paniculite , Doenças Vasculares , Masculino , Humanos , Hansenostáticos/uso terapêutico , Prednisona/uso terapêutico , Fasciite Necrosante/complicações , Fasciite Necrosante/diagnóstico , Fasciite Necrosante/terapia , Quimioterapia Combinada , Estudos Retrospectivos , Paniculite/tratamento farmacológico , Injúria Renal Aguda/etiologia , Injúria Renal Aguda/tratamento farmacológico , Corticosteroides
16.
J Cataract Refract Surg ; 48(4): 508-512, 2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-35318296

RESUMO

A 40-year-old woman was referred for the assessment of bilateral corneal opacities with gradual visual decline over the course of the past decade. Her past ocular history is significant for bilateral amblyopia and strabismus surgery in both eyes before age 5. The patient's parents were told by her childhood ophthalmologist that she had a hereditary disorder. Her systemic review was significant for anal fissure and human leukocyte antigen-B27 ankylosing spondylitis. Her past ocular record revealed corrected distance visual acuity (CDVA) of 20/80 in both eyes in 2018 with central corneal haze. On presentation, her uncorrected distance visual acuity was 20/150 in both eyes. Her CDVA was 20/100 in both eyes with manifest refraction of +0.50 -2.50 × 075 in the right eye and +5.00 -2.25 × 094 in the left eye. Corneal topography reflected keratometry of 35.75/38.97 × 171 in the right eye and 36.45/38.35 × 32 in the left eye. Central corneal thickness was 669 µm and 652 µm, respectively. External slitlamp examination revealed a central faint stromal opacity inferior to the visual axis in the right eye and a central faint stromal opacity in the left eye, and both were associated with steep posterior curvature of the cornea (Figure 1). Further findings included 0.5 corneal haze with mild guttata, normal irides, and clear lenses in both eyes. Intraocular pressure was 23 mm Hg and 26 mm Hg, respectively (Figure 2, Supplemental Figures 1 and 2, http://links.lww.com/JRS/A543). Gonioscopy was unremarkable. Dilated fundus examination revealed a 0.15 cup-to-disc ratio bilaterally, but otherwise no pertinent vitreoretinal pathologies were noted. What is the most likely diagnosis? What medical or surgical interventions would you recommend for this patient? What is the prognosis for this patient?


Assuntos
Córnea , Opacidade da Córnea , Adulto , Criança , Pré-Escolar , Topografia da Córnea , Feminino , Humanos , Pressão Intraocular , Iris , Refração Ocular , Acuidade Visual
17.
BMC Ophthalmol ; 22(1): 15, 2022 Jan 08.
Artigo em Inglês | MEDLINE | ID: mdl-34998368

RESUMO

BACKGROUND: The goal of this study was to investigate the incidence of departures from routine care at the postoperative week 1 (POW1) visit following uneventful resident-performed cataract surgery in asymptomatic patients who had a normal postoperative day 1 (POD1) examination. METHODS: A retrospective chart review of phacoemulsification surgeries performed by the senior resident class at Montefiore Medical Center between June 20, 2018 and April 1, 2019 was performed. The most recent preoperative visit note, operative report, POD1 visit note, and POW1 visit note were evaluated and variables were recorded. Exclusion criteria consisted of any complications that would have necessitated close follow-up and a POW1 visit, whether discovered preoperatively, intraoperatively, at the POD1 visit, or leading up to the POW1 visit. The primary outcome measure was the incidence of unanticipated management changes at the POW1 visit following resident-performed cataract surgery. RESULTS: The charts of 292 surgical cases of 234 patients that underwent phacoemulsification with intraocular lens implantation were reviewed. 226 cases (77%) had an uncomplicated pseudophakic fellow-eye history, with a routine surgery, and POD1 examination. 19 of these patients had symptomatic presentations at the POW1 timepoint, and an additional 30 had no POW1 visit at all. In total, 177 cases were included in the study, and only 4 of these cases (2.3%) had an unexpected management change at the POW1 visit. CONCLUSIONS: Asymptomatic patients who underwent uncomplicated cataract surgeries performed by resident surgeons followed by a routine POD1 visit had a low incidence of unexpected management changes at the POW1 visit. These results suggest that regularly scheduled POW1 visits could potentially be omitted for patients deemed to be at low risk for complications, and instead performed on an as-needed basis.


Assuntos
Catarata , Facoemulsificação , Humanos , Incidência , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos
18.
Ann Vasc Surg ; 83: 42-52, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34995740

RESUMO

OBJECTIVE: Axillary Intra-aortic balloon pump (IABP) has been increasingly utilized for hemodynamic support in heart failure patients. Vascular complications associated with axillary IABP such as dissection or rupture are relatively rare but not negligible that could negatively affect clinical outcomes. We summarized our experiences. METHODS: This is a retrospective study reviewing of all patients receiving an axillary IABP between June 2016 and November 2020. A total of 199 patients underwent percutaneous axillary IABP placement. 6 patients (6/199, 3.0%) were complicated with arterial/aortic dissection or rupture during the procedures or the course of treatment. We described their clinical presentations and outcomes. RESULTS: Vascular complications included acute type A aortic dissection in 2 patients, descending aortic rupture in 1 patient, abdominal aortic rupture along with type B aortic dissection in 1 patient, and the localized left subclavian artery dissection in 2 patient. 2 type A aortic dissection cases were surgically treated: 1 with emergent left ventricle assist device and ascending aorta replacement, the other with emergent left ventricle assist device. Emergent endovascular treatment was successfully performed in 2 aortic rupture cases. The left subclavian artery dissection cases were managed medically. The postoperative/treatment course was uneventful in all patients. CONCLUSION: Percutaneous axillary IABP therapy can cause significant vascular complications. Early diagnosis and prompt treatment would be the key to improve the clinical outcomesv.


Assuntos
Dissecção Aórtica , Ruptura Aórtica , Coração Auxiliar , Dissecção Aórtica/diagnóstico por imagem , Dissecção Aórtica/cirurgia , Ruptura Aórtica/diagnóstico por imagem , Ruptura Aórtica/etiologia , Ruptura Aórtica/cirurgia , Coração Auxiliar/efeitos adversos , Humanos , Estudos Retrospectivos , Resultado do Tratamento
19.
Clin Transplant ; 36(4): e14586, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35041226

RESUMO

BACKGROUND: Until recently, combined heart-liver-kidney transplantation was considered too complex or too high-risk an option for patients with end-stage heart failure who present with advanced liver and kidney failure as well. AIMS: The objective of this paper is to present our institution's best practices for successfully executing this highly challenging operation. At our institution, referral patterns are most often initiated through the cardiac team. RESULTS: Determinants of successful outcomes include diligent multidisciplinary patient selection, detailed perioperative planning, and choreographed care transition and coordination among all transplant teams. The surgery proceeds in three distinct phases with three different teams, linked seamlessly in planned handoffs. The selection and perioperative care are executed with determined collaboration of all of the invested care teams. CONCLUSIONS: Combined heart-liver-kidney transplantation can be successfully done by careful selection, coordination, and execution.


Assuntos
Transplante de Coração , Transplante de Rim , Transplante de Fígado , Transplante de Coração/efeitos adversos , Humanos , Fígado , Transplante de Fígado/efeitos adversos , Estudos Retrospectivos
20.
J Am Acad Orthop Surg ; 30(3): 119-124, 2022 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-34715691

RESUMO

INTRODUCTION: Although generic orthopaedic implants have been available for several years, there has been slow adoption of this cost-saving option. We hypothesize equivalent outcomes between generic and conventional cephalomedullary nails (CMN) in the treatment of peritrochanteric femur fractures. METHODS: We evaluated 419 patients undergoing CMN for peritrochanteric femur fracture with a minimum 6-month follow-up. Demographic data, radiographic assessment, and clinical outcomes were compared. RESULTS: Ninety patients were treated with generic implants and 329 patients with conventional implants. The overall complication rate was 7.0%, with a revision surgery rate of 5.4%. No significant differences were seen in demographic variables or surgical factors. Although there was an increased incidence of postoperative infections with conventional nails (P = 0.045), no significant differences were seen in other complications. CONCLUSION: At our institution, generic nails cost approximately 38% less than their conventional counterparts. There seems to be no increased rate of implant-associated complications with the use of generic CMNs, although allowing for notable cost savings.


Assuntos
Fraturas do Fêmur , Fixação Intramedular de Fraturas , Fraturas do Quadril , Pinos Ortopédicos/efeitos adversos , Custos e Análise de Custo , Fraturas do Fêmur/etiologia , Fêmur , Fixação Intramedular de Fraturas/efeitos adversos , Fraturas do Quadril/cirurgia , Humanos , Unhas , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Resultado do Tratamento
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