Systemic vascular resistance index determined by thoracic electrical bioimpedance predicts the risk for maternal hypotension during regional anesthesia for cesarean delivery

Ouzounian, Joseph G.; Masaki, Damon I.; Abboud, T. K.; Greenspoon, Jeffrey S.

doi:10.1016/s0002-9378(96)70343-5

Cited by 47 publications

(32 citation statements)

References 22 publications

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“…If MAP is considered a reflection of vascular resistance and CO when there are no differences in cardiac output, it is not surprising that MAP and SVRI affected the incidence of arterial pressure drops in the study population. Similar observations were presented by Ouzounian et al [23] in the above-mentioned study regarding pregnant women, which provided the only possibility to directly compare our results, as there are virtually no reports on this issue. Some findings demonstrate a distinct correlation between sympathetic tone and hypotension after spinal anaesthesia.…”

Section: Discussionsupporting

confidence: 88%

“…In multivariate analysis, only MAP was found to be an independent risk factor of hypotension. Our observations differ from those reported by Carpenter et al [12], yet are comparable with observations of a study from California (for SAP) [23], which studied pregnant women. To interpret the results, measurements of other haemodynamic parameters should be considered and performed using the non-invasive Nexfin method; there were significant differences in the cardiac parameters (CO, CI, SV, SVI), yet a difference in SVRI was observed.…”

Section: Discussionsupporting

confidence: 72%

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Nieinwazyjna ocena układu krążenia przy użyciu urządzenia Nexfin pozwala na ocenę ryzyka wystąpienia hipotensji spowodowanej znieczuleniem podpajęczynówkowym

Ławicka¹,

Małek²,

Antczak³

et al. 2015

Anaesthesiol Intensive Ther

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Background: Unfavourable circulatory system conditions have been observed in many patients with spinal anaesthesia. The most frequent symptoms include a decrease in blood pressure and, less frequently, bradycardia. The appearance of unfavourable consequences of spinal anaesthesia might be related to the initial status of the patient's circulatory system. The aim of this study was to establish the possibility of predicting unfavourable circulatory consequences (hypotension, bradycardia) following spinal anaesthesia, based on non-invasive haemodynamic assessment with a Nexfin device. Methods: This prospective study included 100 18-60-year-old ASA I or II planned spinal anaesthesia patients. The initial hemodynamic parameters were assessed with a Nexfin monitor. Anaesthesia was performed with 3−3.5 mL of a 0,5% hyperbaric bupivacaine solution. Within 20 min after the administration of anaesthesia, the arterial blood pressure values, heart rate, sensory blockade level, and motoric blockade level were recorded in 5-min intervals. Hypotension was classified by a decrease of SAP < 90 mm Hg and/or the decrease of the SAP ≥ 20% initial value. Logistic regression was used to determine the independent predictors of hypotension resulting from a spinal blockade. Results: The development of hypotension and bradycardia was observed in 39 and 2%, respectively, of the patients. The patients who developed hypotension differed significantly from those who did not develop this symptom, with the main difference being the body mass and the assessment on the ASA scale. The patients who developed hypotension after spinal anaesthesia differed significantly in the initial hemodynamic parameters (SAP, MAP, SVRI). The following two independent risk factors for hypotension were isolated: the mean arterial pressure (OR 1.04; 95% CI: 1.005-1.076) and the systemic vascular resistance index (OR 1.109; 95% CI: 1.021-1.204). Conclusions: Nexfin-based non-invasive haemodynamic monitoring might be helpful in the identification of individuals with a high risk of hypotension following spinal blockade.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 72%

Nieinwazyjna ocena układu krążenia przy użyciu urządzenia Nexfin pozwala na ocenę ryzyka wystąpienia hipotensji spowodowanej znieczuleniem podpajęczynówkowym

Ławicka¹,

Małek²,

Antczak³

et al. 2015

Anaesthesiol Intensive Ther

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“…Die TEB ist eine nichtinvasive Methode, die sich für die Bestimmung von HMVÄnderungen unter Spinalanästhesie eignet und für diesen Zweck in den letzten Jahren häufig eingesetzt worden ist [3,5,13]. Einige Autoren kritisierten zwar die Bedeutung der mit Hilfe der TEB [7,14] gemessenen Änderungen des HMV, aber der Stellenwert der TEB in HMV-Ände-rungen kann inzwischen als gesichert angesehen werden [4,12,15].…”

Section: Diskussionunclassified

Hämodynamische Effekte einer Spinalanästhesie mit 2% Lidocain im Vergleich zu 0,5% isobaryem Bupivacain

Kamenik¹,

Paver-Eržen²,

L³

et al. 2000

Der Anaesthesist

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“…Therefore, new psychological and clinical issues are raising [1], among them an increasing number of women with CHD want to become pregnant [2].…”

Section: Introductionmentioning

confidence: 99%

Pregnancy-Induced Functional Class Modifications in Patients with Congenital Heart Disease

Daliento¹

2017

J Cardiovasc Disord

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Systemic vascular resistance index determined by thoracic electrical bioimpedance predicts the risk for maternal hypotension during regional anesthesia for cesarean delivery

Cited by 47 publications

References 22 publications

Nieinwazyjna ocena układu krążenia przy użyciu urządzenia Nexfin pozwala na ocenę ryzyka wystąpienia hipotensji spowodowanej znieczuleniem podpajęczynówkowym

Nieinwazyjna ocena układu krążenia przy użyciu urządzenia Nexfin pozwala na ocenę ryzyka wystąpienia hipotensji spowodowanej znieczuleniem podpajęczynówkowym

Hämodynamische Effekte einer Spinalanästhesie mit 2% Lidocain im Vergleich zu 0,5% isobaryem Bupivacain

Pregnancy-Induced Functional Class Modifications in Patients with Congenital Heart Disease

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