Muehrcke's lines

The Relationship Between the Presence of White Nails and Readmission Among Rural Older Admitted Patients: A Prospective Cohort Study

Background

Nail changes can indicate systemic changes within the body. According to previous studies, white nails, characterized by the whitening of the proximal nails with the absence of a lunula, were related to in-hospital mortality in rural community hospitals. Hence, this study aimed to investigate the relationship between the presence of white nails and readmissions among rural older patients who had previously been discharged from rural community hospitals.

Methodology

The relationship between white nails and readmissions among admitted older patients discharged from community hospitals was investigated. This was a single-center prospective study. All patients >65 years admitted from April 2020 to March 2021 and readmitted between April 2020 and June 2021 were included in the study. Upon admission, all patients’ nails were evaluated by trained evaluators for whitening. The presence of white nails was correlated with readmission using a multivariate logistic regression model.

Results

Approximately 28.7% of all participants were readmitted to the hospital during the study period; 41.1% had white nails, and 24.6% did not. Cox hazard model was used to analyze the relationship between readmission and white nails. Of all 637 participants, 24.8% had white nails. Significant variables for readmission were cancer (hazard ratio, HR = 1.52, p = 0.033), dementia (HR = 1.52, p = 0.037), heart failure (HR = 1.53, p = 0.033), home discharge (HR = 0.32, p ≤ 0.001), duration of previous hospitalization (HR = 0.99, p = 0.0026), and white nails (HR = 2.07, p ≤ 0.001).

Conclusions

White nails may be associated with readmission among previously admitted older patients. Identifying white nails in older admitted patients may enhance awareness of readmission risk; however, this needs further research.

The Evaluation and Management of Macronutrient Deficiency Dermatoses

In industrialized countries, nutritional dermatoses are likely underdiagnosed and result in increased disease morbidity and utilization of hospital resources. These findings underscore the need for physicians to be able to correctly identify these deficiencies. Nutritional dermatoses may be split into micronutrient deficiencies and macronutrient deficiencies. This article is intended to serve as a supplement to a two-part review of micronutrient deficiency dermatoses and highlights cutaneous findings in patients with protein-energy malnutrition and essential fatty acid deficiency. This article reviews the evaluation, cutaneous manifestations, and management of macronutrient deficiencies.

The Relationship between the Presence of White Nails and Mortality among Rural, Older, Admitted Patients: A Prospective Cohort Study

White nails are a sign of various physical deteriorations, including poor nutrition, organ damage, and aging. During a physical examination, white nails can be a helpful health indicator in older patients with vague and multiple symptoms. In this prospective cohort study of patients admitted to the Department of General Medicine in a rural community hospital, we investigated the relationship between white nails and patient mortality. Patient data, including age, sex, condition, and bloodwork results, were collected. Trained family physicians confirmed the presence of white nails. Logistic regression analysis was performed to determine the relationship between white nails and death during hospitalization. Of 711 study participants, 74 died during hospitalization. White nails, male sex, and caregiver dependence were associated with high in-hospital mortality (odds ratio (OR) = 3.47, p < 0.001; OR 2.05, p = 0.01; OR 1.92, p = 0.049, respectively). High albumin concentration was associated with low in-hospital mortality (OR = 0.44, p < 0.001). White nails, along with serum albumin concentration, male sex, and caregiver dependence, are associated with mortality. The identification of white nails can predict the deterioration of patients. Various professionals should learn to identify the presence of white nails to facilitate the care of elderly patients.

White Nail as a Static Physical Finding: Revitalization of Physical Examination

Physical examinations are critical for diagnosis and should be differentiated into static and dynamic categories. One of the static findings is white nail, such as Terry’s and Lindsay’s nails. Here, we report the cases of two older patients with acute diseases who had nail changes that aided evaluation of their clinical course. Two elderly women who presented with acute conditions were initially thought to have normal serum albumin levels. They were found to have white nail with differences in nail involvement of the first finger, which subsequently revealed their hypoalbuminemia. The clinical courses were different following the distribution of nail whitening. Our findings show that examination of a white nail could indicate the previous clinical status more clearly than laboratory data. It can be useful for evaluating preclinical conditions in patients with acute diseases. Further evaluation is needed to establish the relationship between clinical outcomes and the presence of white nail in acute conditions among older patients.

Nail is Systemic Disorders: Main Signs and Clues

Describing and listing all nail symptoms and signs in systemic disorders has already been widely detailed in dedicated textbooks. To be tutorial, this article described most common nails signs and the systemic disorders one may encounter in routine dermatologic consultation. Capsule summaries are presented for each section.

Cutaneous signs in dermatological diseases; An overview

Cutaneous signs in dermatology are pathognomonic or diagnostic for certain conditions. A knowledge of these signs is a useful skill, which must not be forgotten in the recent trend towards relying on molecular biology and other investigative tools including histological findings to make a diagnosis. The aim of this review is to summarize all cutaneous signs in dermatology in a systematic way that would benefit dermatologists, trainee or experienced, in identifying diseases and sharpening their clinical skills. A keyword search for the terms “cutaneous signs,” “sign” AND “dermatology” was conducted through PUBMED, Google, and the major textbooks in dermatology (i.e., Rooks Textbook of Dermatology; Fitzpatrick's Dermatology in General Medicine and Dermatology). References were searched thoroughly for all cutaneous signs described. One hundred and nineteen signs were noted and summarized under the following categories: autoimmune, infective, inflammatory, neoplastic, genetic, trauma/miscellaneous. This review would serve as a good reference for those wanting to improve their clinical acumen in diagnosing dermatological disease.

Muehrcke's lines in a psoriatic patient: A possible association with acitretin therapy

Muehrcke's lines are a type of apparent leukonychia that are common in patients receiving chemotherapeutic agents. They are self-limited, and there is no need to more workup.

Fingernails changes associated with chemotherapy in breast cancer: Muehrcke's lines

Nail abnormalities are an indicator of systemic disease but are always neglected during clinic visit. Here, we report a rare case of Muehrcke's lines accompany with normal range serum albumin after chemotherapy, unlike the hypoalbuminemia in most cases, which suggest malnutrition is not the only cause of Muehrcke's lines.

Nail abnormalities associated with systemic pathologies

Nail abnormalities can arise in conjunction with or as a result of systematic pathologies. These pathologies include single-organ diseases, multisystemic diseases, and drug-induced insults. Clinical signs associated with these conditions include dyschromias, vascular alterations, periungual tissue changes, textural dystrophies, contour alterations, and growth-rate alterations. The associated systemic pathologies may affect any part of the nail apparatus, including the nail matrix, the nail plate, the nail bed, the underlying vasculature, and the periungual tissues. The anatomical location and extent of damage determine the clinically manifested anomaly.

Nail disorders as signs of pediatric systemic disease

Herein, we describe some of the more common changes in the nail unit that can be seen in systemic diseases in children. Changes that can be seen are not limited to those discussed in the following pages. The presence of changes on multiple nails is suggestive of a systemic cause in an ill child. However, multiple nails can also be affected in primary inflammatory disorders and infections of the nail unit. When evaluating a pediatric patient with a nail disorder, it is important to perform a complete physical examination of the skin and oral mucosa, as other clues to the diagnosis of the nail problem may be found. A comprehensive family history is also important to uncover possible syndromic associations with nail disease or diseases that can manifest with nail changes.