Continuous noninvasive hemoglobin monitoring

Suehiro, Koichi; Joosten, Alexandre; Alexander, Brenton

doi:10.1097/mcc.0000000000000197

Cited by 12 publications

(7 citation statements)

References 32 publications

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“…In previous studies [ 1 , 2 , 10 , 11 ], the range of correlation coefficient between SpHb and Lab-Hb was reported from 0.47 to 0.72. It was assumed that the correlation coefficient would be approximately 0.7 in our study.…”

Section: Methodsmentioning

confidence: 97%

Intraoperative continuous noninvasive hemoglobin monitoring in patients with placenta previa undergoing cesarean section: a prospective observational study

et al. 2019

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Background Obstetric patients with placenta previa are at risk for sever peripartum hemorrhage. Early detection of anemia and proper transfusion strategy are important for the management of obstetric hemorrhage. In this study, we assessed the utility and accuracy of noninvasive hemoglobin (SpHb) monitoring in patients with placenta previa during cesarean section. Methods Parturients diagnosed with placenta previa and scheduled for cesarean section under spinal anesthesia were enrolled. SpHb and laboratory Hb (Lab-Hb) were measured during surgery as primary outcomes. Results Seventy-four pairs of SpHb and Lab-Hb were collected from 39 patients. The correlation coefficient was 0.877 between SpHb and Lab-Hb (P < 0.001). The Bland–Altman plot showed a mean difference ± SD of 0.3 ± 0.8 g/dl between noninvasive Hb and Lab-Hb, and the limits of agreement were −1.2 to 1.8 g/dl. The magnitude of the difference between SpHb and Lab-Hb was < 0.5 g/dl in 64.9%; however, it was > 1.5 g/dl in 10.8%. Conclusions SpHb monitoring had a good correlation with Lab-Hb. A small mean difference between SpHb and lab-Hb might not be clinically significant; however, the limits of agreements were not narrow. In particular, SpHb could be overestimated in the anemic population. Based on our results, further studies investigating the accuracy and precision of SpHb monitoring should be performed in parturients presenting Hb below 10 g/dl.

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Section: Methodsmentioning

confidence: 97%

Intraoperative continuous noninvasive hemoglobin monitoring in patients with placenta previa undergoing cesarean section: a prospective observational study

et al. 2019

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“…Использование неинвазивного непрерывного контроля уровня гемоглобина может в этом помочь. Данная методика в том числе уменьшает кровопотерю и дискомфорт пациента при венопункции [38][39][40].…”

Section: анемия в послеоперационном периодеunclassified

Perioperative anemia

2021

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Over 10 million operations are performed each year in Russia. A successful surgical treatment demands assessment and mitigation of perioperative risks, one of which is anemia. Patients with low hemoglobin are at greater risk of developing complications and adverse outcomes. These patients more often stay longer at hospitals, have more in-hospital events and readmissions.Perioperative anemia may be present before surgery, low hemoglobin levels can result from surgery, and can persist after hospital discharge. Preoperative anemia is associated with inferior surgical outcomes and is also an independent risk factor for perioperative complications (acute kidney injury, infectious, thromboembolic, cardiovascular events) and death. Postoperative anemia impairs recovery and increases the risk of reoperations and readmissions.Absolute and functional iron deficiency is the most common cause of anemia in the perioperative period. The prescription of iron supplements is indicated in the presence of iron deficiency. If the operation is scheduled to be performed in 6 weeks and longer, the prescription of oral iron forms is recommended. If less than 6 weeks remain before surgery, parenteral iron therapy is prescribed. If hemoglobin levels increase insignificantly during such therapy, high-dose iron supplements are indicated. When it comes to emergency surgery and the anemia is not severe, it is recommended to intravenously administer high-dose iron supplements immediately before surgery. In case of severe anemia, blood transfusion is indicated. According to the patient’s blood management concept, blood transfusion should be minimized, including due to the use of high-dose iron supplements, one of which is ferric carboxymaltose.The choice of treatment for anemia in the postoperative period depends on its severity, the patient’s comorbidities, the type of surgery and the presence of surgical events. In most cases, early intravenous iron therapy is recommended, giving priority to single administration of high-dose iron supplements. Blood transfusion is indicated to patients who have severe anemia, are actively bleeding, and to patients with a severe anemia after the bleeding has been stopped. Iron therapy continues at the outpatient stage of treatment for a long time until the hemoglobin and ferritin levels are normalized, reflecting the replenishment of iron stores in the depot organs.

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“…For continuous through-the-skin optical noninvasive Hb monitoring (NIHb or SpHb), portable bedside equipment (e.g. within operating rooms or intensive care units) also is already on the market, but accuracy presently still needs improvement [44,45]. The optical measurement principle is strongly related to pulse oximetry, and it is likely that over the coming years throughthe-skin Hb-measurement accuracy can be further improved and miniaturized to pocket size (for periodic Hb-check).…”

Section: Anemia (4/23)mentioning

confidence: 99%

Wearable sensors: can they benefit patients with chronic kidney disease?

Wieringa

Broers

Kooman

et al. 2017

Expert Review of Medical Devices

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Introduction: This article ponders upon wearable medical measurement devices in relation to Chronic Kidney Disease (CKD) and its' associated comorbidities -and whether these might benefit CKD-patients. We aimed to map the intersection(s) of nephrology and wearable sensor technology to help technologists understand medical aspects, and clinicians to understand technological possibilities that are available (or soon will become so). Areas covered: A structured literature search on main comorbidities and complications CKD patients suffer from, was used to steer mini-reviews on wearable sensor technologies clustered around 3 themes being: Cardiovascular-related, diabetes-related and physical fitness/frailty. This review excludes wearable dialysis -although also strongly enabled by miniaturization -because that highly important theme deserves separate in-depth reviewing. Expert commentary: Continuous progress in integrated electronics miniaturization enormously lowered price, size, weight and energy consumption of electronic sensors, processing power, memory and wireless connectivity. These combined factors boost opportunities for wearable medical sensors. Such devices can be regarded as enablers for: Remote monitoring, influencing human behaviour (exercise, dietary), enhanced home care, remote consults, patient education and peer networks. However, to make wearable medical devices succeed, the challenge to fit them into health care structures will be dominant over the challenge to realize the bare technologies themselves. ARTICLE HISTORY

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Continuous noninvasive hemoglobin monitoring

Cited by 12 publications

References 32 publications

Intraoperative continuous noninvasive hemoglobin monitoring in patients with placenta previa undergoing cesarean section: a prospective observational study

Intraoperative continuous noninvasive hemoglobin monitoring in patients with placenta previa undergoing cesarean section: a prospective observational study

Perioperative anemia

Wearable sensors: can they benefit patients with chronic kidney disease?

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