Cancer is a multi-step process, where normal cells become transformed, grow, and may disseminate to establish new lesions in the body [1]. The physical properties of individual cells and of the tissue microenvironments are potent determinants of cancer progression. Cell and tissue mechanics, morphology, and migration are physical traits, linked to gene expression changes, which affect metastatic seeding, organ selectivity, and tumor growth [1] [2].

In the tumor microenvironment, some mechanical forces (shear, compression, tensile, etc.) promote tumor progression and treatment resistance [3]. As well, in a tumor microenvironment, there is physical energy, enabling for: 1) intracellular signaling by molecular vibration [4] [5]; 2) interplay between the circadian clock and cancer [6]; 3) rescue of damaged tissue [7].

Gene expression patterns and protein oscillation orchestrated by cancer stemness networks lead to state-space attractor cancer dynamics [8].

The paper looks for reassessment at tumor recurrence survival in soft matter. Here the tumor recurrence is understood as complex tumor dynamics in soft matter, modeling the upper physical qualities of individual cells and tissue microenvironment. In this case, the tumor in soft matter is defined as a structural motif, and the cyclic chemotherapy in soft matter, after which tumor recurrence occurs, is set as the restoration time.

In (DeVille et al., 2011) [9] is explicitly evaluated the stability of a specific stochastic two-dimensional non-Hamiltonian system, driven by additive white noise. The largest Lyapunov exponent is numerically computed, depending on contraction rate and shear. This dependence is represented [9] as a stability map.

In (Miller and Wales, 2005) [10] are found new energetically optimal structural motifs in clusters of dipolar spheres. These motifs are knots, links and coils. Morphology of these clusters is obtained depending on dipole strength and a cluster size.

Let the complexity of the above shear action coincides with the complexity of the considered morphology. Then a stability map and a structural map can be brought into coincidence through the following correspondence:

μ h = 2.25 μ s + 1 ,   σ = 0.3636 N − 2.1818 (1)

Here the stability map is with a contraction rate μ_h and a shear σ. Also the structural map is with a dipole strength μ_s and a number of particles in a cluster N.

Since a structural map defines structural motifs in a tumor in soft matter, then the above bringing into coincidence allows finding the largest Lyapunov exponent on a linear scale for the structural motif in a tumor in soft matter:

λ = − 1.3221 μ 1 + 0.8456 ,   μ 1 = μ s cos ( 21 ˚ ) . (2)

In Equation (2) μ_s is dipole strength of the structural motif in a tumor in soft matter.

Let the tumor in soft matter is with a structural motif with the largest Lyapunov exponent λ. As well, let λ = − 0.24 , when λ belongs to the interval − 0.24 < λ ≤ 0 and λ = 0.24 , when λ belongs to the interval 0 < λ < 0.24 .

The tumor structural motifs in soft matter are with the largest Lyapunov exponent less or equal to 1.56, λ ≤ 1.56 . Then the tumor structural motif in soft matter is defined from the corrected largest Lyapunov exponent λ * , λ * = λ − 1.56 .

Closed polymer rings with nontrivial topological properties appear as DNA knots of living organisms [11]. The mechanical properties of polymer knots under stretching in a bad or good solvent are investigated in (Zhao and Ferrari, 2017) [11] by applying a given tensile force to a point of the knot while keeping another point fixed. Energy of the polymer conformation depends on [11] the tensile force, the number of contacts of the knot and the distance between the application point of the force and the origin. In (Zhao and Ferrari, 2017) [11], the mechanical properties of the short polymer knots under stretching by constant tensile force directed along z-axis are studied on the simple cubic lattice.

Reference [11] shows a diagram with areas of accessible combinations of the number of contacts and the distance between the application point of the force and the origin for the unknot 0₁, trefoil knot 3₁ and the cinquefoil knot 5₁, when all these knots are with a length of fifty lattice units.

According to this diagram, the boundary of the area of accessible combinations (m₁, d₁) of the number of contacts m₁ and the distance d₁ between the application point of the force and the origin of the unknot 0₁ can be approximated by an ellipse with a semi-major axe a₁, a 1 = 61.77980 , a semi-minor axe b₁, b 1 = 38.98505 , and a center ( m c , 1 , d c , 1 ) = ( 5.37812 , − 0.14108 ) .

According to this diagram, the boundary of the area of accessible combinations (m₂, d₂) of the number of contacts m₂ and the distance d₂ between the application point of the force and the origin of the trefoil knot 3₁ can be approximated by an ellipse with a semi-major axe a₂, a 2 = 35.40223 , a semi-minor axe b₂, b 2 = 23.33651 , and a center ( m c , 2 , d c , 2 ) = ( 20.90221 , − 0.04570 ) .

According to this diagram, the boundary of the area of accessible combinations (m₃, d₃) of the number of contacts m₃ and the distance d₃ between the application point of the force and the origin of the cinquefoil knot 5₁ can be approximated by an ellipse with a semi-major axe a₃, a 3 = 22.9614 , a semi-minor axe b₃, b 3 = 17.36799 , and a center ( m c , 3 , d c , 3 ) = ( 31.93548 , − 0.15345 ) .

Let the tumor recurrence in soft matter is a transition from one polymer knot to another one (knot-knot transition), characterized by unstable oscillations of the number of contacts and of the distance between the application point of the force and the origin for each of the two knots, and with a cubic nonlinear interaction of those two oscillations. Let these transitions between polymer knots are: 1) 0₁ → 3₁; 2) 0₁ → 5₁; 3) 3₁ → 5₁.

Let the treatment of tumor recurrence in soft matter is a state feedback control, which control stabilizes [12] the system of these two unstable oscillating processes in the neighborhood of the boundary of ellipsoidal manifold in R⁴, while distributing the energy of the transition between the two nonlinear processes.

Then the treatment at tumor recurrence in soft matter stabilizes one of the three transitions from a polymer knot to other via the feedback by (Gorobtsov et al., 2009) [12].

Oscillation frequencies of both stable limit cycles are [12]:

1 )     0 1 → 3 1 : ω 1 2 = b 1 2 / a 1 2 , ω 2 2 = b 2 2 / a 2 2 ; 2 )     0 1 → 5 1 : ω 1 2 = b 1 2 / a 1 2 , ω 2 2 = b 3 2 / a 3 2 ; (3)

3) 3 1 → 5 1 : ω 1 2 = b 2 2 / a 2 2 , ω 2 2 = b 3 2 / a 3 2 .

Cancer-microenvironment interactions may consist [13] of chaotic gene expressions and a turbulent protein flow during a cancer pattern formation. The appearance of a turbulent flow is due to [14] a destruction of the laminar flow, while the laminar flow contains vorticity and potential components in the local zone of destruction.

Then let the angular velocity ω 3 , i , i = 1 , 2 , 3 , of the i^th a knot-knot transition at tumor recurrence treatment in soft matter is [14]:

ω 3 , i = v 3 + 8 ( v 1 − ω 1 , i ) ( v 3 + ω 1 , i ) ( v 2 + ω 2 , i ) / ( ( v 2 − ω 2 , i ) ( v 1 + ω 1 , i ) ) , i = 1 , 2 , 3. (4)

Here v₁ and ω_1,i are, correspondingly, shear linear velocity and shear angular velocity of the flow for the i-th transition, v₂ and ω_2,i are, correspondingly, tsunami linear velocity and tsunami angular velocity of the flow for the i^th transition, and v₃ is the restoration velocity from the initial tumor, v 3 = 20 / t r . Here t_r is the restoration time at cyclic chemotherapy in soft matter.

Knot-knot transition is an open thermodynamic system at the observed treatment. This system is with nonequilibrium dynamics, due to dissipation and vorticity at this treatment. According to quantum thermodynamics [15], the internal energy becomes extensive after the system reaches equilibrium. At the studied treatment, equilibration refers to tumor recurrence in soft matter from §3, evolving to steady self-oscillations. At a knot-knot transition, this extensive property depends [15] on the oscillation frequencies ω 1 2 and ω 2 2 from Equation (3) and is fulfilled ω 1 , i = ω 1 2 , ω 2 , i = ω 2 2 .

Let a knot-knot transition, at the observed treatment, is entanglement propagation following a local quench in 2 + 1 dimensional holographic conformal field theories. Then [16], the entanglement velocity is fairly close to hydrodynamical velocity v_shear, v shear = 0.665 , related to entropy production. Also [16], the tsunami velocity, v tsunami = 0.687 , which appears as a lower bound of entanglement velocity, is a lower bound on information processing. Therefore, it is assumed that v 1 = v shear , v 2 = v tsunami .

Time of the i-th knot-knot transition is:

T i = 2 π / ω 3 , i , i = 1 , 2 , 3. (5)

Knot-knot rhythms of transitions are the times 10 T i , i = 1 , 2 , 3 , which are found via entanglement spectroscopy [17] of this transition.

A portion of dark energy contained in a five-dimensional universe, entangled with Brans-Dicke field, can be used for human beings treatment [18]. Therefore, this portion of dark energy should be transformed [18] into other forms of energy.

Let the treatment energy, at each of the three transitions, is determined through the part of dark energy that can serve for treatment [18], in the following way [14]:

1) 0 1 → 3 1 : E 0 → E 3 , 2) 0 1 → 5 1 : E 0 → E 5 , 3) 3 1 → 5 1 : E 3 → E 5 , (6)

E 0 = ( 3 / ( 4 π ) ) exp ( λ 1 ( 5 T 2 / 20 ) ) ( λ 1 − 12 − 36 / λ 1 2 ) ,

E 3 = E r 1 exp ( a b s ( T 2 − 2 T 1 ) ( ln ( ( a b s ( T 2 − 2 T 1 ) ) 1 / 2 ) − 0.5 ) ) ,

E r 1 = ( 3 / ( 4 π ) ) exp ( λ 1 ( 10 T 1 / 20 ) ) ( λ 1 − 12 − 36 / λ 1 2 ) ,

E 5 = E r 3 exp ( a b s ( T 2 − T 3 ) ( ln ( ( a b s ( T 2 − T 3 ) ) 1 / 2 ) − 0.5 ) ) ,

E r 3 = ( 3 / ( 4 π ) ) exp ( λ 1 ( 5 T 3 / 20 ) ) ( λ 1 − 12 − 36 / λ 1 2 ) ,

λ 1 = − λ * / 5 + 0.188.

Let the transition energy (0₁ → 5₁) that serves for tumor treatment in soft matter, is the specific energy of the unknot 0₁ with a length of 50 lattice units, ( 〈 E 〉 / 50 ) ( 0 1 ) = E 0 , for E₀ from Equation (6). Then, from the graphic of the specific energy of the unknot 0₁ with length of 50 lattice units under stretching in bad solvent at high temperature [11] is found the tensile force F₀, corresponding to E₀. Next, from the graphic of the heat capacity of the unknot 0₁ with length of 50 lattice units under stretching in bad solvent at high temperature [11], (C/50)(0₁), is found the heat capacity C₀, corresponding to the tensile force F₀.

Let the transition energy (0₁ → 3₁) that serves for tumor treatment in soft matter, is the specific energy of the trefoil knot 3₁ with a length of 50 lattice units, ( 〈 E 〉 / 50 ) ( 3 1 ) = E 3 , for E₃ from Equation (6). Then, from the graphic of the specific energy of the trefoil knot 3₁ with length of 50 lattice units under stretching in bad solvent at high temperature [11] is found the tensile force F₃, corresponding to E₃. Next, from the graphic of the heat capacity of the trefoil knot 3₁ with length of 50 lattice units under stretching in bad solvent at high temperature [11], (C/50)(3₁), is found the heat capacity C₃, corresponding to the tensile force F₃.

Let the transition energy (3₁ → 5₁) that serves for tumor treatment in soft matter is the specific energy of the cinquefoil knot 5₁ with a length of 50 lattice units, ( 〈 E 〉 / 50 ) ( 5 1 ) = E 5 , for E₅ from Equation (6). Then from the graphic of the specific energy of the cinquefoil knot 5₁ with a length of 50 lattice units under stretching in bad solvent at high temperature [11] is found the tensile force F₅, corresponding to E₅. Next, from the graphic of the heat capacity of the cinquefoil knot 5₁ with length of 50 lattice units under stretching in bad solvent at high temperature [11], (C/50)(5₁), is found the heat capacity C₅, corresponding to the tensile force F₅.

Treatment protocol, at each of the three transitions, consists in simultaneously implying the following two tensile forces:

1) 0₁ → 3₁: Tensile force F₀ on the polymer knot 0₁ and tensile force F₃ on the polymer knot 3₁;

2) 0₁ → 5₁: Tensile force F₀ on the polymer knot 0₁ and tensile force F₅ on the polymer knot 5₁;

3) 3₁ → 5₁: Tensile force F₃ on the polymer knot 3₁ and tensile force F₅ on the polymer knot 5₁.

Let the recurrence tumor in soft matter is a rare event in driven diffusive media. Then it can be assumed that a packing field, which triggers condensation instability, triggers immune evasion. Therefore a continuous time crystal from rare event can be built [19] of the recurrence tumor in soft matter. This time crystal is a sensor for the recurrence tumor in soft matter.

Packing order parameter R(λ_p) measures particles’ coherent motion [19]. This parameter depends on intensity of the biasing field λ_p. Let this intensity of the biasing field λ_p is equal to the largest Lyapunov’s exponent λ * from §2, λ p = λ * . Here is assumed that the intensive biasing field is conjugated to the extensive current in a way similar to the stability map relation from §2 between contraction rate and shear. Then the packing order parameter R ( λ * ) of the recurrence tumor in soft matter is found from the graphic in (Hurtado-Gutiérrez et al., 2020) [19].

Let the tumor recurrence in soft matter is weakly measured through entanglement spectroscopy of knot-knot transition. Let the tuning of the above sensor is achieved by a knot-knot transition feedback.

Applying feedback and week measurements to the quantum system of a knot-knot transition induces [20] phase transitions beyond the dissipative ones. The critical exponent of the knot-knot transition α(s) is found from the graphic [20] of the dependency of critical exponent α on feedback exponent s, s = λ 1 . Here it is assumed that the exponent of the feedback depends linearly, as in Equation (6), from the corrected largest Lyapunov’s exponent λ * .

At controlling the critical knot-knot transition exponent, the feedback response of the transition for the times T₁, T₂, T₃ from Equation (5) is [20]:

k 1 = s ( 2 T 1 / T 2 ) s + 1 , k 2 = s ( T 3 / T 2 ) s + 1 . (7)

The tuning of the sensor for tumor recurrence in soft matter, via controlling the critical knot-knot transition exponent, is:

R 1 ( λ * ) = ( 2 / π ) k 1 R ( λ * ) , R 2 ( λ * ) = ( 2 / π ) k 2 R ( λ * ) . (8)

Treatment at tumor recurrence in soft matter that stabilises knot-knot transitions via the feedback by (Gorobtsov et al., 2009) [12], is:

d x 1 / d t = x 2 (9)

d x 2 / d t = α 1 x 2 − ω 1 2 x 1 − u 1

d x 3 / d t = x 4

d x 4 / d t = α 2 x 4 − ω 2 2 x 3 − u 2

u 1 = β 2 , 1 x 2 x 1 2 + β 2 , 2 x 2 3 + β 2 , 3 x 2 x 3 2 + β 2 , 4 x 2 x 4 2

u 2 = β 4 , 3 x 4 x 3 2 + β 4 , 4 x 4 3 + β 4 , 1 x 4 x 1 2 + β 4 , 2 x 4 x 2 2

β 2 , 1 = α 1 / a 10 2 , β 2 , 2 = α 1 / b 10 2 , β 4 , 3 = α 2 / a 20 2

β 4 , 4 = α 2 / b 20 2 , β 2 , 3 = α 1 / a 20 2 , β 4 , 1 = α 2 / a 10 2

b 10 2 β 4 , 2 + b 20 2 β 2 , 4 + b 20 2 α 2 + b 10 2 α 1 = 0.

It is accepted here, that for each of the three transitions, is fulfilled:

1) 0 1 → 3 1 : x 1 = ( m 1 − m c , 1 ) , x 2 = ( d 1 − d c , 1 ) , x 3 = ( m 2 − m c , 2 ) ,                         x 4 = ( d 2 − d c , 2 ) , a 10 = a 1 , b 10 = b 1 , a 20 = a 2 , b 20 = b 2 ;

2) 0 1 → 5 1 : x 1 = ( m 1 − m c , 1 ) , x 2 = ( d 1 − d c , 1 ) , x 3 = ( m 3 − m c , 3 ) ,                         x 4 = ( d 3 − d c , 3 ) , a 10 = a 1 , b 10 = b 1 , a 20 = a 3 , b 20 = b 3 ;

3) 3 1 → 5 1 : x 1 = ( m 2 − m c , 2 ) , x 2 = ( d 2 − d c , 2 ) , x 3 = ( m 3 − m c , 3 ) ,                         x 4 = ( d 3 − d c , 3 ) , a 10 = a 2 , b 10 = b 2 , a 20 = a 3 , b 20 = b 3 .

Also ω₁ and ω₂ are oscillation frequencies for the two steady state self-oscillations, α₁ and α₂ characterize instability of the two oscillations, α 1 > 0 , α 2 > 0 , u₁ and u₂ are two state controls, β_i,j are control coefficients. Oscillation frequencies ω₁ and ω₂ are determined in Equation (3).

In treatment model (9) (Model (9)), the distance between the application point of the force and the origin is considered to be due to the variation of the number of contacts for each of the two knots of a transition.

Interaction of both controls u₁ and u₂ is defined by the coefficients β_4,2 and β_2,4 from Model (9). At this treatment it is assumed that the coefficients β_4,2 and β_2,4 are:

β 4 , 2 = α 1 ,   β 2 , 4 = − α 1 ( 2 b 10 2 / b 20 2 + 1 ) . (10)

Then the constraint from Model (9) is fulfilled for these coefficients.

Treatment model at tumor recurrence in soft matter is with equal coefficients α₁ and α₂, because both oscillations are a part of one transition. Also let these coefficients be equal to square root of the corrected packing order parameter from §7: 1) α 1 = α 2 = R 1 ( λ * ) 1 / 2 ; 2) α 1 = α 2 = R 2 ( λ * ) 1 / 2 .

At the first connection in the Model (9), the amplitudes of the two settled down self-oscillations A₁₁ and A₂₁ are [12]:

A 11 = a 10 ( x 1 2 / a 10 2 + x 2 2 / b 10 2 ) 1 / 2 , A 21 = a 20 ( x 3 2 / a 20 2 + x 4 2 / b 20 2 ) 1 / 2 . (11)

At the second connection in the Model (9), the amplitudes of the two settled down self-oscillations A₁₂ and A₂₂ are [12]:

A 12 = a 10 ( x 1 2 / a 10 2 + x 2 2 / b 10 2 ) 1 / 2 , A 22 = a 20 ( x 3 2 / a 20 2 + x 4 2 / b 20 2 ) 1 / 2 . (12)

Then the tumor recurrence treatment in soft matter is found by integrating the Model (9) in a time interval [0, T_f,i] with an integration step Δ t i = T f , i / 20 , i = 1 , 2 , 3 , when this system is with the following initial state:

1) 0 1 → 3 1 : T f , 1 = 10 T 1 , x 1 ( 0 ) = C 0 , x 2 ( 0 ) = E 0 / ( 25 π ) ,                         x 3 ( 0 ) = C 3 , x 4 ( 0 ) = E 3 / ( 25 π ) ,

2) 0 1 → 5 1 : T f , 2 = 5 T 2 , x 1 ( 0 ) = C 0 , x 2 ( 0 ) = E 0 / ( 25 π ) ,                         x 3 ( 0 ) = C 5 , x 4 ( 0 ) = E 5 / ( 25 π ) ,

3) 3 1 → 5 1 : T f , 3 = 5 T 3 , x 1 ( 0 ) = C 3 , x 2 ( 0 ) = E 3 / ( 25 π ) ,                         x 3 ( 0 ) = C 5 , x 4 ( 0 ) = E 5 / ( 25 π ) .

Here is assumed that the number of contacts in the initial moment is determined by the heat capacity and that the real distance between the application point of the force and the origin in the initial moment, is equal to the treatment energy, divided by the number of segments per knot N, N = 50 . Here the real distance between the application point of the force and the origin is the distance between the application point of the force and the origin, multiplied by the half of the size of the compact direction in the boundary theory L_c by (Myers et al., 2017) [17], L c = π .

In this treatment model it is possible the number of contacts to be negative. In this case, tumor in soft matter is considered as nanocluster, trapped in metastable state, differing from the true thermodynamic equilibrium state. This trapping appears [21] due to high-energy barriers in cluster phase space, separating the tumor in soft matter.

At this consideration the tumor in soft natter is a “small” system [21] in sense that the range of the relevant interaction is greater than the characteristic size of the system of nanoclusters. In this case the above treatment leads to a stable boundary cycle of a large interaction of the tumor in soft matter with environment, coexisting with a stable boundary cycle of a small decoherence between tumor in soft matter and environment. Then the above treatment looks like a rescue [22] from DNA damages of the p53 regulatory network of a cell population.

Let a tumor recurrence in soft matter is a two level atom, with a level, excited by the treatment, and with a level, not excited by the treatment. Then the knot-knot transition at above treatment can be represented as a two level atom interacting with an optical cavity (near environment), presenting either dephasing or photon losses to a far environment. At that time decoherence of the optical cavity mimics the effects of far environment. Thus the knot-knot transition at the above treatment is modeled with a qubit coupled to sequentially nested environment by (Torres and Seligman, 2017) [23]. The above treatment protects the coherence of the knot-knot transition, while increases the coupling between near and far environments through a corrected packing order parameter.

Knot-knot transition at the above treatment can be detected through measurement of ultraweak photon emissions so as it is [24] at tumor detections.

Let in the above model of the knot-knot transition a two level atom interacts with: 1) an optical cavity with strength g = A 21 ( T f , i / 2 ) / 10 and the cavity presents dephasing at rate γ = A 11 ( T f , i / 2 ) / 10 ; 2) an optical cavity with strength g = A 22 ( T f , i / 2 ) / 10 and the cavity presents photon losses at rate k = A 12 ( T f , i / 2 ) / 10 to a far environment. Then the survival probability until moment 10 T f , i / 2 , i = 1 , 2 , 3 , at treatment with a tensile force protocol, is obtained as an atomic excitation probability p e , 1 ( T f , i / 2 ) , i = 1 , 2 , 3 , from (Torres and Seligman, 2017) [23], depending on: 1) the ratio γ / g = A 11 ( T f , i / 2 ) / A 21 ( T f , i / 2 ) or the ratio k / g = A 12 ( T f , i / 2 ) / A 22 ( T f , i / 2 ) ; 2) the detuning δ. Here δ is [23] the detuning of the atomic transition frequency from the frequency of the mode.

Let the survival probability is found from: 1) a diagram for atomic excitation probability by (Torres and Seligman, 2017) [23], when the cavity presents dephasing to a far environment and a detuning is δ / g = 0 ; 2) a diagram for atomic excitation probability by (Torres and Seligman, 2017) [23], when the cavity presents the photon losses to a far environment and detuning is δ / g = 0.8 .

Each of these two diagrams by (Torres and Seligman, 2017) [23], with a time in months, is similar to the diagram for a probability of distant metastasis-free, given in months, survival for patients with breast cancer by (Bianchini et al., 2010) [25].

Let the age of the patients is characterized by different detuning. Then it can be assumed that the survival probability at the re-treatment with a protocol for tensile force, found according the first diagram, is comparable to the survival probability for the middle-aged (45 - 59 age) patients and younger patients with breast cancer, and the probability survival, found according the second diagram is comparable to the survival probability for the elderly (60 - 74 age) and old patients with breast cancer.

Database is used for 424 patients with breast cancer, who were under treatment at the Clinic of Chemotherapy, Specialized Hospital for Active Treatment in Oncology, Sofia, Bulgaria, throughout 2003-2014. A group of 32 patients is randomly selected from the 424 patients with different TNM staging (T—tumor size, N—lymph node status, M—distant metastasis), histology and immunohistochemical characteristics. All patients’ proliferation index is assessed. The gene expression is not tested. Their medical history is retrospectively tracked, their current survival is reported (March 2020) and is investigated a correlation with the standard clinicopathological criteria of risk assessment: TNM staging, histology, tumor differentiation grade, (ER, PR, HER2) receptor status. Patients with soft tissue carcinoma and other carcinoma are not included in the group.

Survival probability at cyclic chemotherapy and the recovery time are obtained from the proliferation index of the concrete tumor via chemotherapy model in soft matter by (Trifonova et al., 2014) [26]. Structural motif of each of these tumors is related to a structural motif by (Miller and Wales, 2005) [10].

Survival probability at cyclic chemotherapy in soft matter by (Trifonova et al., 2014) [26], is indeterminate for five patients. These cases remain outside from the current consideration.

Survival probability at a treatment with a tensile force protocol is found for 27 patients. It is assumed that survival probability at a treatment with a tensile force protocol is changed slightly compared to the survival probability at cyclic chemotherapy by (Trifonova et al., 2014) [26], when the absolute value of this change does not exceed 0.05 in close moments of time. Also, it is assumed that the survival probability, at a treatment with a tensile force protocol, changes a lot, compared to the success of cyclic chemotherapy by (Trifonova et al., 2014) [26], when the absolute value of this change exceeds 0.05 in close moments of time. This change is uncertain in four cases due to a large discrepancy between the timing of the two treatments.

Survival reassessment, at a tumor recurrence in soft matter, is found by comparing the survival probability at a treatment with a tensile force protocol for a tumor recurrence in soft matter, and the survival probability at cyclic chemotherapy of the initial tumor development in soft matter. The actual survival is then analyzed as the actual data are taken from the patients’ medical history.

Treatment with a tensile force protocol improves the survival assessment in eleven cases (48%). Great assessment improvement is achieved in seven of these cases at tumor treatment (0₁ → 5₁) in soft matter, regardless of the patients’ age. In the rest four cases assessment improvement at tumor treatment (0₁ → 3₁) in soft matter is achieved. In these eleven cases the specification of the prognostic survival is achieved, so that it corresponds to the actual one.

Treatment with a tensile force protocol keeps on the survival assessment in eight cases (35%) of middle-aged and younger patients. In these cases the prognostic survival is confirmed.

Treatment with a tensile force protocol worsens the survival assessment in four cases (17%). These cases are with obscure structural motif.

Survival reassessment, of a tumor recurrence in soft matter, is done in this paper:

1) Stability of structural motifs under shear in clusters of dipolar spheres, is characterized via Lyapunov exponent;

2) Transitions between polymer knots are introduced, when these knots are exposed to stretching, and a transition occurs as interconnected vibrations;

3) Rhythms of transitions are obtained through entanglement spectroscopy;

4) A tensile force protocol for treatment is proposed, when the energy of this treatment is equal to the part of dark energy that can serve for treatment;

5) Sensor for a tumor in soft matter, as a time crystal for discovering a rare phenomenon, is built;

6) The sensor for a tumor in soft matter, via the critical exponent of the transitions between polymer knots, is tuned;

7) A treatment with a tensile force protocol, as vibration isolation, is modeled;

8) Survival probability, as atomic excitation probability at ultraweak photon emission, is given.

Survival reassessment, at tumor recurrence in soft matter, confirms or specifies the prognostic survival of 32 patients with breast cancer at a cyclic chemotherapy model in soft matter. This shows that the prognostic survival of patients with the breast cancer can be assessed by this model.

The authors declare no conflicts of interest regarding the publication of this paper.

Trifonova, I. and Stefanov, S.Z. (2022) Survival Reassessment at Tumor Recurrence in Soft Matter. Open Journal of Modelling and Simulation, 10, 58-69. https://doi.org/10.4236/ojmsi.2022.101004